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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) 2007-2013 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/module.h>
45#include <linux/kernel.h>
46#include <linux/init.h>
47#include <linux/errno.h>
48#include <linux/blkdev.h>
49#include <linux/sched.h>
50#include <linux/workqueue.h>
51#include <linux/delay.h>
52#include <linux/pci.h>
53#include <linux/interrupt.h>
54#include <linux/aer.h>
55#include <linux/raid_class.h>
56#include <linux/slab.h>
57
58#include "mpt2sas_base.h"
59
60MODULE_AUTHOR(MPT2SAS_AUTHOR);
61MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
62MODULE_LICENSE("GPL");
63MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
64
65#define RAID_CHANNEL 1
66
67/* forward proto's */
68static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
69 struct _sas_node *sas_expander);
70static void _firmware_event_work(struct work_struct *work);
71
72static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid);
73
74static void _scsih_scan_start(struct Scsi_Host *shost);
75static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
76
77/* global parameters */
78LIST_HEAD(mpt2sas_ioc_list);
79
80/* local parameters */
81static u8 scsi_io_cb_idx = -1;
82static u8 tm_cb_idx = -1;
83static u8 ctl_cb_idx = -1;
84static u8 base_cb_idx = -1;
85static u8 port_enable_cb_idx = -1;
86static u8 transport_cb_idx = -1;
87static u8 scsih_cb_idx = -1;
88static u8 config_cb_idx = -1;
89static int mpt_ids;
90
91static u8 tm_tr_cb_idx = -1 ;
92static u8 tm_tr_volume_cb_idx = -1 ;
93static u8 tm_sas_control_cb_idx = -1;
94
95/* command line options */
96static u32 logging_level;
97MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
98 "(default=0)");
99
100static ushort max_sectors = 0xFFFF;
101module_param(max_sectors, ushort, 0);
102MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
103
104static int missing_delay[2] = {-1, -1};
105module_param_array(missing_delay, int, NULL, 0);
106MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
107
108/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
109#define MPT2SAS_MAX_LUN (16895)
110static int max_lun = MPT2SAS_MAX_LUN;
111module_param(max_lun, int, 0);
112MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
113
114/* diag_buffer_enable is bitwise
115 * bit 0 set = TRACE
116 * bit 1 set = SNAPSHOT
117 * bit 2 set = EXTENDED
118 *
119 * Either bit can be set, or both
120 */
121static int diag_buffer_enable = -1;
122module_param(diag_buffer_enable, int, 0);
123MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
124 "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
125
126static int disable_discovery = -1;
127module_param(disable_discovery, int, 0);
128MODULE_PARM_DESC(disable_discovery, " disable discovery ");
129
130/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
131static int prot_mask = 0;
132module_param(prot_mask, int, 0);
133MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
134
135/**
136 * struct sense_info - common structure for obtaining sense keys
137 * @skey: sense key
138 * @asc: additional sense code
139 * @ascq: additional sense code qualifier
140 */
141struct sense_info {
142 u8 skey;
143 u8 asc;
144 u8 ascq;
145};
146
147
148#define MPT2SAS_TURN_ON_FAULT_LED (0xFFFC)
149#define MPT2SAS_PORT_ENABLE_COMPLETE (0xFFFD)
150#define MPT2SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
151/**
152 * struct fw_event_work - firmware event struct
153 * @list: link list framework
154 * @work: work object (ioc->fault_reset_work_q)
155 * @cancel_pending_work: flag set during reset handling
156 * @ioc: per adapter object
157 * @device_handle: device handle
158 * @VF_ID: virtual function id
159 * @VP_ID: virtual port id
160 * @ignore: flag meaning this event has been marked to ignore
161 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
162 * @event_data: reply event data payload follows
163 *
164 * This object stored on ioc->fw_event_list.
165 */
166struct fw_event_work {
167 struct list_head list;
168 u8 cancel_pending_work;
169 struct delayed_work delayed_work;
170 struct MPT2SAS_ADAPTER *ioc;
171 u16 device_handle;
172 u8 VF_ID;
173 u8 VP_ID;
174 u8 ignore;
175 u16 event;
176 void *event_data;
177};
178
179/* raid transport support */
180static struct raid_template *mpt2sas_raid_template;
181
182/**
183 * struct _scsi_io_transfer - scsi io transfer
184 * @handle: sas device handle (assigned by firmware)
185 * @is_raid: flag set for hidden raid components
186 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
187 * @data_length: data transfer length
188 * @data_dma: dma pointer to data
189 * @sense: sense data
190 * @lun: lun number
191 * @cdb_length: cdb length
192 * @cdb: cdb contents
193 * @timeout: timeout for this command
194 * @VF_ID: virtual function id
195 * @VP_ID: virtual port id
196 * @valid_reply: flag set for reply message
197 * @sense_length: sense length
198 * @ioc_status: ioc status
199 * @scsi_state: scsi state
200 * @scsi_status: scsi staus
201 * @log_info: log information
202 * @transfer_length: data length transfer when there is a reply message
203 *
204 * Used for sending internal scsi commands to devices within this module.
205 * Refer to _scsi_send_scsi_io().
206 */
207struct _scsi_io_transfer {
208 u16 handle;
209 u8 is_raid;
210 enum dma_data_direction dir;
211 u32 data_length;
212 dma_addr_t data_dma;
213 u8 sense[SCSI_SENSE_BUFFERSIZE];
214 u32 lun;
215 u8 cdb_length;
216 u8 cdb[32];
217 u8 timeout;
218 u8 VF_ID;
219 u8 VP_ID;
220 u8 valid_reply;
221 /* the following bits are only valid when 'valid_reply = 1' */
222 u32 sense_length;
223 u16 ioc_status;
224 u8 scsi_state;
225 u8 scsi_status;
226 u32 log_info;
227 u32 transfer_length;
228};
229
230/*
231 * The pci device ids are defined in mpi/mpi2_cnfg.h.
232 */
233static struct pci_device_id scsih_pci_table[] = {
234 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
235 PCI_ANY_ID, PCI_ANY_ID },
236 /* Falcon ~ 2008*/
237 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
238 PCI_ANY_ID, PCI_ANY_ID },
239 /* Liberator ~ 2108 */
240 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
241 PCI_ANY_ID, PCI_ANY_ID },
242 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
243 PCI_ANY_ID, PCI_ANY_ID },
244 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
245 PCI_ANY_ID, PCI_ANY_ID },
246 /* Meteor ~ 2116 */
247 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
248 PCI_ANY_ID, PCI_ANY_ID },
249 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
250 PCI_ANY_ID, PCI_ANY_ID },
251 /* Thunderbolt ~ 2208 */
252 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
253 PCI_ANY_ID, PCI_ANY_ID },
254 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
255 PCI_ANY_ID, PCI_ANY_ID },
256 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
257 PCI_ANY_ID, PCI_ANY_ID },
258 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
259 PCI_ANY_ID, PCI_ANY_ID },
260 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
261 PCI_ANY_ID, PCI_ANY_ID },
262 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
263 PCI_ANY_ID, PCI_ANY_ID },
264 /* Mustang ~ 2308 */
265 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
266 PCI_ANY_ID, PCI_ANY_ID },
267 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
268 PCI_ANY_ID, PCI_ANY_ID },
269 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
270 PCI_ANY_ID, PCI_ANY_ID },
271 /* SSS6200 */
272 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
273 PCI_ANY_ID, PCI_ANY_ID },
274 {0} /* Terminating entry */
275};
276MODULE_DEVICE_TABLE(pci, scsih_pci_table);
277
278/**
279 * _scsih_set_debug_level - global setting of ioc->logging_level.
280 *
281 * Note: The logging levels are defined in mpt2sas_debug.h.
282 */
283static int
284_scsih_set_debug_level(const char *val, struct kernel_param *kp)
285{
286 int ret = param_set_int(val, kp);
287 struct MPT2SAS_ADAPTER *ioc;
288
289 if (ret)
290 return ret;
291
292 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
293 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
294 ioc->logging_level = logging_level;
295 return 0;
296}
297module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
298 &logging_level, 0644);
299
300/**
301 * _scsih_srch_boot_sas_address - search based on sas_address
302 * @sas_address: sas address
303 * @boot_device: boot device object from bios page 2
304 *
305 * Returns 1 when there's a match, 0 means no match.
306 */
307static inline int
308_scsih_srch_boot_sas_address(u64 sas_address,
309 Mpi2BootDeviceSasWwid_t *boot_device)
310{
311 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
312}
313
314/**
315 * _scsih_srch_boot_device_name - search based on device name
316 * @device_name: device name specified in INDENTIFY fram
317 * @boot_device: boot device object from bios page 2
318 *
319 * Returns 1 when there's a match, 0 means no match.
320 */
321static inline int
322_scsih_srch_boot_device_name(u64 device_name,
323 Mpi2BootDeviceDeviceName_t *boot_device)
324{
325 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
326}
327
328/**
329 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
330 * @enclosure_logical_id: enclosure logical id
331 * @slot_number: slot number
332 * @boot_device: boot device object from bios page 2
333 *
334 * Returns 1 when there's a match, 0 means no match.
335 */
336static inline int
337_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
338 Mpi2BootDeviceEnclosureSlot_t *boot_device)
339{
340 return (enclosure_logical_id == le64_to_cpu(boot_device->
341 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
342 SlotNumber)) ? 1 : 0;
343}
344
345/**
346 * _scsih_is_boot_device - search for matching boot device.
347 * @sas_address: sas address
348 * @device_name: device name specified in INDENTIFY fram
349 * @enclosure_logical_id: enclosure logical id
350 * @slot_number: slot number
351 * @form: specifies boot device form
352 * @boot_device: boot device object from bios page 2
353 *
354 * Returns 1 when there's a match, 0 means no match.
355 */
356static int
357_scsih_is_boot_device(u64 sas_address, u64 device_name,
358 u64 enclosure_logical_id, u16 slot, u8 form,
359 Mpi2BiosPage2BootDevice_t *boot_device)
360{
361 int rc = 0;
362
363 switch (form) {
364 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
365 if (!sas_address)
366 break;
367 rc = _scsih_srch_boot_sas_address(
368 sas_address, &boot_device->SasWwid);
369 break;
370 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
371 if (!enclosure_logical_id)
372 break;
373 rc = _scsih_srch_boot_encl_slot(
374 enclosure_logical_id,
375 slot, &boot_device->EnclosureSlot);
376 break;
377 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
378 if (!device_name)
379 break;
380 rc = _scsih_srch_boot_device_name(
381 device_name, &boot_device->DeviceName);
382 break;
383 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
384 break;
385 }
386
387 return rc;
388}
389
390/**
391 * _scsih_get_sas_address - set the sas_address for given device handle
392 * @handle: device handle
393 * @sas_address: sas address
394 *
395 * Returns 0 success, non-zero when failure
396 */
397static int
398_scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
399 u64 *sas_address)
400{
401 Mpi2SasDevicePage0_t sas_device_pg0;
402 Mpi2ConfigReply_t mpi_reply;
403 u32 ioc_status;
404 *sas_address = 0;
405
406 if (handle <= ioc->sas_hba.num_phys) {
407 *sas_address = ioc->sas_hba.sas_address;
408 return 0;
409 }
410
411 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
412 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
413 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
414 __FILE__, __LINE__, __func__);
415 return -ENXIO;
416 }
417
418 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
419 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
420 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
421 return 0;
422 }
423
424 /* we hit this becuase the given parent handle doesn't exist */
425 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
426 return -ENXIO;
427 /* else error case */
428 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x), "
429 "failure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
430 __FILE__, __LINE__, __func__);
431 return -EIO;
432}
433
434/**
435 * _scsih_determine_boot_device - determine boot device.
436 * @ioc: per adapter object
437 * @device: either sas_device or raid_device object
438 * @is_raid: [flag] 1 = raid object, 0 = sas object
439 *
440 * Determines whether this device should be first reported device to
441 * to scsi-ml or sas transport, this purpose is for persistent boot device.
442 * There are primary, alternate, and current entries in bios page 2. The order
443 * priority is primary, alternate, then current. This routine saves
444 * the corresponding device object and is_raid flag in the ioc object.
445 * The saved data to be used later in _scsih_probe_boot_devices().
446 */
447static void
448_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
449 void *device, u8 is_raid)
450{
451 struct _sas_device *sas_device;
452 struct _raid_device *raid_device;
453 u64 sas_address;
454 u64 device_name;
455 u64 enclosure_logical_id;
456 u16 slot;
457
458 /* only process this function when driver loads */
459 if (!ioc->is_driver_loading)
460 return;
461
462 /* no Bios, return immediately */
463 if (!ioc->bios_pg3.BiosVersion)
464 return;
465
466 if (!is_raid) {
467 sas_device = device;
468 sas_address = sas_device->sas_address;
469 device_name = sas_device->device_name;
470 enclosure_logical_id = sas_device->enclosure_logical_id;
471 slot = sas_device->slot;
472 } else {
473 raid_device = device;
474 sas_address = raid_device->wwid;
475 device_name = 0;
476 enclosure_logical_id = 0;
477 slot = 0;
478 }
479
480 if (!ioc->req_boot_device.device) {
481 if (_scsih_is_boot_device(sas_address, device_name,
482 enclosure_logical_id, slot,
483 (ioc->bios_pg2.ReqBootDeviceForm &
484 MPI2_BIOSPAGE2_FORM_MASK),
485 &ioc->bios_pg2.RequestedBootDevice)) {
486 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
487 "%s: req_boot_device(0x%016llx)\n",
488 ioc->name, __func__,
489 (unsigned long long)sas_address));
490 ioc->req_boot_device.device = device;
491 ioc->req_boot_device.is_raid = is_raid;
492 }
493 }
494
495 if (!ioc->req_alt_boot_device.device) {
496 if (_scsih_is_boot_device(sas_address, device_name,
497 enclosure_logical_id, slot,
498 (ioc->bios_pg2.ReqAltBootDeviceForm &
499 MPI2_BIOSPAGE2_FORM_MASK),
500 &ioc->bios_pg2.RequestedAltBootDevice)) {
501 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
502 "%s: req_alt_boot_device(0x%016llx)\n",
503 ioc->name, __func__,
504 (unsigned long long)sas_address));
505 ioc->req_alt_boot_device.device = device;
506 ioc->req_alt_boot_device.is_raid = is_raid;
507 }
508 }
509
510 if (!ioc->current_boot_device.device) {
511 if (_scsih_is_boot_device(sas_address, device_name,
512 enclosure_logical_id, slot,
513 (ioc->bios_pg2.CurrentBootDeviceForm &
514 MPI2_BIOSPAGE2_FORM_MASK),
515 &ioc->bios_pg2.CurrentBootDevice)) {
516 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
517 "%s: current_boot_device(0x%016llx)\n",
518 ioc->name, __func__,
519 (unsigned long long)sas_address));
520 ioc->current_boot_device.device = device;
521 ioc->current_boot_device.is_raid = is_raid;
522 }
523 }
524}
525
526/**
527 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
528 * @ioc: per adapter object
529 * @sas_address: sas address
530 * Context: Calling function should acquire ioc->sas_device_lock
531 *
532 * This searches for sas_device based on sas_address, then return sas_device
533 * object.
534 */
535struct _sas_device *
536mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
537 u64 sas_address)
538{
539 struct _sas_device *sas_device;
540
541 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
542 if (sas_device->sas_address == sas_address)
543 return sas_device;
544
545 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
546 if (sas_device->sas_address == sas_address)
547 return sas_device;
548
549 return NULL;
550}
551
552/**
553 * _scsih_sas_device_find_by_handle - sas device search
554 * @ioc: per adapter object
555 * @handle: sas device handle (assigned by firmware)
556 * Context: Calling function should acquire ioc->sas_device_lock
557 *
558 * This searches for sas_device based on sas_address, then return sas_device
559 * object.
560 */
561static struct _sas_device *
562_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
563{
564 struct _sas_device *sas_device;
565
566 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
567 if (sas_device->handle == handle)
568 return sas_device;
569
570 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
571 if (sas_device->handle == handle)
572 return sas_device;
573
574 return NULL;
575}
576
577/**
578 * _scsih_sas_device_remove - remove sas_device from list.
579 * @ioc: per adapter object
580 * @sas_device: the sas_device object
581 * Context: This function will acquire ioc->sas_device_lock.
582 *
583 * Removing object and freeing associated memory from the ioc->sas_device_list.
584 */
585static void
586_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
587 struct _sas_device *sas_device)
588{
589 unsigned long flags;
590
591 if (!sas_device)
592 return;
593
594 spin_lock_irqsave(&ioc->sas_device_lock, flags);
595 list_del(&sas_device->list);
596 kfree(sas_device);
597 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
598}
599
600
601/**
602 * _scsih_sas_device_add - insert sas_device to the list.
603 * @ioc: per adapter object
604 * @sas_device: the sas_device object
605 * Context: This function will acquire ioc->sas_device_lock.
606 *
607 * Adding new object to the ioc->sas_device_list.
608 */
609static void
610_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
611 struct _sas_device *sas_device)
612{
613 unsigned long flags;
614
615 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
616 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
617 sas_device->handle, (unsigned long long)sas_device->sas_address));
618
619 spin_lock_irqsave(&ioc->sas_device_lock, flags);
620 list_add_tail(&sas_device->list, &ioc->sas_device_list);
621 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
622
623 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
624 sas_device->sas_address_parent)) {
625 _scsih_sas_device_remove(ioc, sas_device);
626 } else if (!sas_device->starget) {
627 /* When asyn scanning is enabled, its not possible to remove
628 * devices while scanning is turned on due to an oops in
629 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
630 */
631 if (!ioc->is_driver_loading) {
632 mpt2sas_transport_port_remove(ioc,
633 sas_device->sas_address,
634 sas_device->sas_address_parent);
635 _scsih_sas_device_remove(ioc, sas_device);
636 }
637 }
638}
639
640/**
641 * _scsih_sas_device_init_add - insert sas_device to the list.
642 * @ioc: per adapter object
643 * @sas_device: the sas_device object
644 * Context: This function will acquire ioc->sas_device_lock.
645 *
646 * Adding new object at driver load time to the ioc->sas_device_init_list.
647 */
648static void
649_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
650 struct _sas_device *sas_device)
651{
652 unsigned long flags;
653
654 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
655 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
656 sas_device->handle, (unsigned long long)sas_device->sas_address));
657
658 spin_lock_irqsave(&ioc->sas_device_lock, flags);
659 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
660 _scsih_determine_boot_device(ioc, sas_device, 0);
661 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
662}
663
664/**
665 * _scsih_raid_device_find_by_id - raid device search
666 * @ioc: per adapter object
667 * @id: sas device target id
668 * @channel: sas device channel
669 * Context: Calling function should acquire ioc->raid_device_lock
670 *
671 * This searches for raid_device based on target id, then return raid_device
672 * object.
673 */
674static struct _raid_device *
675_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
676{
677 struct _raid_device *raid_device, *r;
678
679 r = NULL;
680 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
681 if (raid_device->id == id && raid_device->channel == channel) {
682 r = raid_device;
683 goto out;
684 }
685 }
686
687 out:
688 return r;
689}
690
691/**
692 * _scsih_raid_device_find_by_handle - raid device search
693 * @ioc: per adapter object
694 * @handle: sas device handle (assigned by firmware)
695 * Context: Calling function should acquire ioc->raid_device_lock
696 *
697 * This searches for raid_device based on handle, then return raid_device
698 * object.
699 */
700static struct _raid_device *
701_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
702{
703 struct _raid_device *raid_device, *r;
704
705 r = NULL;
706 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
707 if (raid_device->handle != handle)
708 continue;
709 r = raid_device;
710 goto out;
711 }
712
713 out:
714 return r;
715}
716
717/**
718 * _scsih_raid_device_find_by_wwid - raid device search
719 * @ioc: per adapter object
720 * @handle: sas device handle (assigned by firmware)
721 * Context: Calling function should acquire ioc->raid_device_lock
722 *
723 * This searches for raid_device based on wwid, then return raid_device
724 * object.
725 */
726static struct _raid_device *
727_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
728{
729 struct _raid_device *raid_device, *r;
730
731 r = NULL;
732 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
733 if (raid_device->wwid != wwid)
734 continue;
735 r = raid_device;
736 goto out;
737 }
738
739 out:
740 return r;
741}
742
743/**
744 * _scsih_raid_device_add - add raid_device object
745 * @ioc: per adapter object
746 * @raid_device: raid_device object
747 *
748 * This is added to the raid_device_list link list.
749 */
750static void
751_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
752 struct _raid_device *raid_device)
753{
754 unsigned long flags;
755
756 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
757 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
758 raid_device->handle, (unsigned long long)raid_device->wwid));
759
760 spin_lock_irqsave(&ioc->raid_device_lock, flags);
761 list_add_tail(&raid_device->list, &ioc->raid_device_list);
762 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
763}
764
765/**
766 * _scsih_raid_device_remove - delete raid_device object
767 * @ioc: per adapter object
768 * @raid_device: raid_device object
769 *
770 */
771static void
772_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
773 struct _raid_device *raid_device)
774{
775 unsigned long flags;
776
777 spin_lock_irqsave(&ioc->raid_device_lock, flags);
778 list_del(&raid_device->list);
779 kfree(raid_device);
780 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
781}
782
783/**
784 * mpt2sas_scsih_expander_find_by_handle - expander device search
785 * @ioc: per adapter object
786 * @handle: expander handle (assigned by firmware)
787 * Context: Calling function should acquire ioc->sas_device_lock
788 *
789 * This searches for expander device based on handle, then returns the
790 * sas_node object.
791 */
792struct _sas_node *
793mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
794{
795 struct _sas_node *sas_expander, *r;
796
797 r = NULL;
798 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
799 if (sas_expander->handle != handle)
800 continue;
801 r = sas_expander;
802 goto out;
803 }
804 out:
805 return r;
806}
807
808/**
809 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
810 * @ioc: per adapter object
811 * @sas_address: sas address
812 * Context: Calling function should acquire ioc->sas_node_lock.
813 *
814 * This searches for expander device based on sas_address, then returns the
815 * sas_node object.
816 */
817struct _sas_node *
818mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
819 u64 sas_address)
820{
821 struct _sas_node *sas_expander, *r;
822
823 r = NULL;
824 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
825 if (sas_expander->sas_address != sas_address)
826 continue;
827 r = sas_expander;
828 goto out;
829 }
830 out:
831 return r;
832}
833
834/**
835 * _scsih_expander_node_add - insert expander device to the list.
836 * @ioc: per adapter object
837 * @sas_expander: the sas_device object
838 * Context: This function will acquire ioc->sas_node_lock.
839 *
840 * Adding new object to the ioc->sas_expander_list.
841 *
842 * Return nothing.
843 */
844static void
845_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
846 struct _sas_node *sas_expander)
847{
848 unsigned long flags;
849
850 spin_lock_irqsave(&ioc->sas_node_lock, flags);
851 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
852 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
853}
854
855/**
856 * _scsih_is_end_device - determines if device is an end device
857 * @device_info: bitfield providing information about the device.
858 * Context: none
859 *
860 * Returns 1 if end device.
861 */
862static int
863_scsih_is_end_device(u32 device_info)
864{
865 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
866 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
867 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
868 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
869 return 1;
870 else
871 return 0;
872}
873
874/**
875 * _scsih_scsi_lookup_get - returns scmd entry
876 * @ioc: per adapter object
877 * @smid: system request message index
878 *
879 * Returns the smid stored scmd pointer.
880 */
881static struct scsi_cmnd *
882_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
883{
884 return ioc->scsi_lookup[smid - 1].scmd;
885}
886
887/**
888 * _scsih_scsi_lookup_get_clear - returns scmd entry
889 * @ioc: per adapter object
890 * @smid: system request message index
891 *
892 * Returns the smid stored scmd pointer.
893 * Then will derefrence the stored scmd pointer.
894 */
895static inline struct scsi_cmnd *
896_scsih_scsi_lookup_get_clear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
897{
898 unsigned long flags;
899 struct scsi_cmnd *scmd;
900
901 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
902 scmd = ioc->scsi_lookup[smid - 1].scmd;
903 ioc->scsi_lookup[smid - 1].scmd = NULL;
904 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
905
906 return scmd;
907}
908
909/**
910 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
911 * @ioc: per adapter object
912 * @smid: system request message index
913 * @scmd: pointer to scsi command object
914 * Context: This function will acquire ioc->scsi_lookup_lock.
915 *
916 * This will search for a scmd pointer in the scsi_lookup array,
917 * returning the revelent smid. A returned value of zero means invalid.
918 */
919static u16
920_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
921 *scmd)
922{
923 u16 smid;
924 unsigned long flags;
925 int i;
926
927 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
928 smid = 0;
929 for (i = 0; i < ioc->scsiio_depth; i++) {
930 if (ioc->scsi_lookup[i].scmd == scmd) {
931 smid = ioc->scsi_lookup[i].smid;
932 goto out;
933 }
934 }
935 out:
936 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
937 return smid;
938}
939
940/**
941 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
942 * @ioc: per adapter object
943 * @id: target id
944 * @channel: channel
945 * Context: This function will acquire ioc->scsi_lookup_lock.
946 *
947 * This will search for a matching channel:id in the scsi_lookup array,
948 * returning 1 if found.
949 */
950static u8
951_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
952 int channel)
953{
954 u8 found;
955 unsigned long flags;
956 int i;
957
958 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
959 found = 0;
960 for (i = 0 ; i < ioc->scsiio_depth; i++) {
961 if (ioc->scsi_lookup[i].scmd &&
962 (ioc->scsi_lookup[i].scmd->device->id == id &&
963 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
964 found = 1;
965 goto out;
966 }
967 }
968 out:
969 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
970 return found;
971}
972
973/**
974 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
975 * @ioc: per adapter object
976 * @id: target id
977 * @lun: lun number
978 * @channel: channel
979 * Context: This function will acquire ioc->scsi_lookup_lock.
980 *
981 * This will search for a matching channel:id:lun in the scsi_lookup array,
982 * returning 1 if found.
983 */
984static u8
985_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
986 unsigned int lun, int channel)
987{
988 u8 found;
989 unsigned long flags;
990 int i;
991
992 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
993 found = 0;
994 for (i = 0 ; i < ioc->scsiio_depth; i++) {
995 if (ioc->scsi_lookup[i].scmd &&
996 (ioc->scsi_lookup[i].scmd->device->id == id &&
997 ioc->scsi_lookup[i].scmd->device->channel == channel &&
998 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
999 found = 1;
1000 goto out;
1001 }
1002 }
1003 out:
1004 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1005 return found;
1006}
1007
1008/**
1009 * _scsih_get_chain_buffer_tracker - obtain chain tracker
1010 * @ioc: per adapter object
1011 * @smid: smid associated to an IO request
1012 *
1013 * Returns chain tracker(from ioc->free_chain_list)
1014 */
1015static struct chain_tracker *
1016_scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
1017{
1018 struct chain_tracker *chain_req;
1019 unsigned long flags;
1020
1021 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1022 if (list_empty(&ioc->free_chain_list)) {
1023 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1024 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT "chain buffers not "
1025 "available\n", ioc->name));
1026 return NULL;
1027 }
1028 chain_req = list_entry(ioc->free_chain_list.next,
1029 struct chain_tracker, tracker_list);
1030 list_del_init(&chain_req->tracker_list);
1031 list_add_tail(&chain_req->tracker_list,
1032 &ioc->scsi_lookup[smid - 1].chain_list);
1033 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1034 return chain_req;
1035}
1036
1037/**
1038 * _scsih_build_scatter_gather - main sg creation routine
1039 * @ioc: per adapter object
1040 * @scmd: scsi command
1041 * @smid: system request message index
1042 * Context: none.
1043 *
1044 * The main routine that builds scatter gather table from a given
1045 * scsi request sent via the .queuecommand main handler.
1046 *
1047 * Returns 0 success, anything else error
1048 */
1049static int
1050_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
1051 struct scsi_cmnd *scmd, u16 smid)
1052{
1053 Mpi2SCSIIORequest_t *mpi_request;
1054 dma_addr_t chain_dma;
1055 struct scatterlist *sg_scmd;
1056 void *sg_local, *chain;
1057 u32 chain_offset;
1058 u32 chain_length;
1059 u32 chain_flags;
1060 int sges_left;
1061 u32 sges_in_segment;
1062 u32 sgl_flags;
1063 u32 sgl_flags_last_element;
1064 u32 sgl_flags_end_buffer;
1065 struct chain_tracker *chain_req;
1066
1067 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1068
1069 /* init scatter gather flags */
1070 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
1071 if (scmd->sc_data_direction == DMA_TO_DEVICE)
1072 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
1073 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
1074 << MPI2_SGE_FLAGS_SHIFT;
1075 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
1076 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
1077 << MPI2_SGE_FLAGS_SHIFT;
1078 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1079
1080 sg_scmd = scsi_sglist(scmd);
1081 sges_left = scsi_dma_map(scmd);
1082 if (sges_left < 0) {
1083 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
1084 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
1085 return -ENOMEM;
1086 }
1087
1088 sg_local = &mpi_request->SGL;
1089 sges_in_segment = ioc->max_sges_in_main_message;
1090 if (sges_left <= sges_in_segment)
1091 goto fill_in_last_segment;
1092
1093 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1094 (sges_in_segment * ioc->sge_size))/4;
1095
1096 /* fill in main message segment when there is a chain following */
1097 while (sges_in_segment) {
1098 if (sges_in_segment == 1)
1099 ioc->base_add_sg_single(sg_local,
1100 sgl_flags_last_element | sg_dma_len(sg_scmd),
1101 sg_dma_address(sg_scmd));
1102 else
1103 ioc->base_add_sg_single(sg_local, sgl_flags |
1104 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1105 sg_scmd = sg_next(sg_scmd);
1106 sg_local += ioc->sge_size;
1107 sges_left--;
1108 sges_in_segment--;
1109 }
1110
1111 /* initializing the chain flags and pointers */
1112 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1113 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1114 if (!chain_req)
1115 return -1;
1116 chain = chain_req->chain_buffer;
1117 chain_dma = chain_req->chain_buffer_dma;
1118 do {
1119 sges_in_segment = (sges_left <=
1120 ioc->max_sges_in_chain_message) ? sges_left :
1121 ioc->max_sges_in_chain_message;
1122 chain_offset = (sges_left == sges_in_segment) ?
1123 0 : (sges_in_segment * ioc->sge_size)/4;
1124 chain_length = sges_in_segment * ioc->sge_size;
1125 if (chain_offset) {
1126 chain_offset = chain_offset <<
1127 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1128 chain_length += ioc->sge_size;
1129 }
1130 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1131 chain_length, chain_dma);
1132 sg_local = chain;
1133 if (!chain_offset)
1134 goto fill_in_last_segment;
1135
1136 /* fill in chain segments */
1137 while (sges_in_segment) {
1138 if (sges_in_segment == 1)
1139 ioc->base_add_sg_single(sg_local,
1140 sgl_flags_last_element |
1141 sg_dma_len(sg_scmd),
1142 sg_dma_address(sg_scmd));
1143 else
1144 ioc->base_add_sg_single(sg_local, sgl_flags |
1145 sg_dma_len(sg_scmd),
1146 sg_dma_address(sg_scmd));
1147 sg_scmd = sg_next(sg_scmd);
1148 sg_local += ioc->sge_size;
1149 sges_left--;
1150 sges_in_segment--;
1151 }
1152
1153 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1154 if (!chain_req)
1155 return -1;
1156 chain = chain_req->chain_buffer;
1157 chain_dma = chain_req->chain_buffer_dma;
1158 } while (1);
1159
1160
1161 fill_in_last_segment:
1162
1163 /* fill the last segment */
1164 while (sges_left) {
1165 if (sges_left == 1)
1166 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1167 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1168 else
1169 ioc->base_add_sg_single(sg_local, sgl_flags |
1170 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1171 sg_scmd = sg_next(sg_scmd);
1172 sg_local += ioc->sge_size;
1173 sges_left--;
1174 }
1175
1176 return 0;
1177}
1178
1179/**
1180 * _scsih_adjust_queue_depth - setting device queue depth
1181 * @sdev: scsi device struct
1182 * @qdepth: requested queue depth
1183 *
1184 *
1185 * Returns nothing
1186 */
1187static void
1188_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
1189{
1190 struct Scsi_Host *shost = sdev->host;
1191 int max_depth;
1192 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1193 struct MPT2SAS_DEVICE *sas_device_priv_data;
1194 struct MPT2SAS_TARGET *sas_target_priv_data;
1195 struct _sas_device *sas_device;
1196 unsigned long flags;
1197
1198 max_depth = shost->can_queue;
1199
1200 /* limit max device queue for SATA to 32 */
1201 sas_device_priv_data = sdev->hostdata;
1202 if (!sas_device_priv_data)
1203 goto not_sata;
1204 sas_target_priv_data = sas_device_priv_data->sas_target;
1205 if (!sas_target_priv_data)
1206 goto not_sata;
1207 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1208 goto not_sata;
1209 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1210 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1211 sas_device_priv_data->sas_target->sas_address);
1212 if (sas_device && sas_device->device_info &
1213 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1214 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
1215 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1216
1217 not_sata:
1218
1219 if (!sdev->tagged_supported)
1220 max_depth = 1;
1221 if (qdepth > max_depth)
1222 qdepth = max_depth;
1223 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1224}
1225
1226/**
1227 * _scsih_change_queue_depth - setting device queue depth
1228 * @sdev: scsi device struct
1229 * @qdepth: requested queue depth
1230 * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
1231 * (see include/scsi/scsi_host.h for definition)
1232 *
1233 * Returns queue depth.
1234 */
1235static int
1236_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1237{
1238 if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
1239 _scsih_adjust_queue_depth(sdev, qdepth);
1240 else if (reason == SCSI_QDEPTH_QFULL)
1241 scsi_track_queue_full(sdev, qdepth);
1242 else
1243 return -EOPNOTSUPP;
1244
1245 if (sdev->inquiry_len > 7)
1246 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1247 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1248 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1249 sdev->ordered_tags, sdev->scsi_level,
1250 (sdev->inquiry[7] & 2) >> 1);
1251
1252 return sdev->queue_depth;
1253}
1254
1255/**
1256 * _scsih_change_queue_type - changing device queue tag type
1257 * @sdev: scsi device struct
1258 * @tag_type: requested tag type
1259 *
1260 * Returns queue tag type.
1261 */
1262static int
1263_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1264{
1265 if (sdev->tagged_supported) {
1266 scsi_set_tag_type(sdev, tag_type);
1267 if (tag_type)
1268 scsi_activate_tcq(sdev, sdev->queue_depth);
1269 else
1270 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1271 } else
1272 tag_type = 0;
1273
1274 return tag_type;
1275}
1276
1277/**
1278 * _scsih_target_alloc - target add routine
1279 * @starget: scsi target struct
1280 *
1281 * Returns 0 if ok. Any other return is assumed to be an error and
1282 * the device is ignored.
1283 */
1284static int
1285_scsih_target_alloc(struct scsi_target *starget)
1286{
1287 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1288 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1289 struct MPT2SAS_TARGET *sas_target_priv_data;
1290 struct _sas_device *sas_device;
1291 struct _raid_device *raid_device;
1292 unsigned long flags;
1293 struct sas_rphy *rphy;
1294
1295 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1296 if (!sas_target_priv_data)
1297 return -ENOMEM;
1298
1299 starget->hostdata = sas_target_priv_data;
1300 sas_target_priv_data->starget = starget;
1301 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1302
1303 /* RAID volumes */
1304 if (starget->channel == RAID_CHANNEL) {
1305 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1306 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1307 starget->channel);
1308 if (raid_device) {
1309 sas_target_priv_data->handle = raid_device->handle;
1310 sas_target_priv_data->sas_address = raid_device->wwid;
1311 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1312 if (ioc->is_warpdrive)
1313 sas_target_priv_data->raid_device = raid_device;
1314 raid_device->starget = starget;
1315 }
1316 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1317 return 0;
1318 }
1319
1320 /* sas/sata devices */
1321 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1322 rphy = dev_to_rphy(starget->dev.parent);
1323 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1324 rphy->identify.sas_address);
1325
1326 if (sas_device) {
1327 sas_target_priv_data->handle = sas_device->handle;
1328 sas_target_priv_data->sas_address = sas_device->sas_address;
1329 sas_device->starget = starget;
1330 sas_device->id = starget->id;
1331 sas_device->channel = starget->channel;
1332 if (test_bit(sas_device->handle, ioc->pd_handles))
1333 sas_target_priv_data->flags |=
1334 MPT_TARGET_FLAGS_RAID_COMPONENT;
1335 }
1336 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1337
1338 return 0;
1339}
1340
1341/**
1342 * _scsih_target_destroy - target destroy routine
1343 * @starget: scsi target struct
1344 *
1345 * Returns nothing.
1346 */
1347static void
1348_scsih_target_destroy(struct scsi_target *starget)
1349{
1350 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1351 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1352 struct MPT2SAS_TARGET *sas_target_priv_data;
1353 struct _sas_device *sas_device;
1354 struct _raid_device *raid_device;
1355 unsigned long flags;
1356 struct sas_rphy *rphy;
1357
1358 sas_target_priv_data = starget->hostdata;
1359 if (!sas_target_priv_data)
1360 return;
1361
1362 if (starget->channel == RAID_CHANNEL) {
1363 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1364 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1365 starget->channel);
1366 if (raid_device) {
1367 raid_device->starget = NULL;
1368 raid_device->sdev = NULL;
1369 }
1370 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1371 goto out;
1372 }
1373
1374 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1375 rphy = dev_to_rphy(starget->dev.parent);
1376 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1377 rphy->identify.sas_address);
1378 if (sas_device && (sas_device->starget == starget) &&
1379 (sas_device->id == starget->id) &&
1380 (sas_device->channel == starget->channel))
1381 sas_device->starget = NULL;
1382
1383 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1384
1385 out:
1386 kfree(sas_target_priv_data);
1387 starget->hostdata = NULL;
1388}
1389
1390/**
1391 * _scsih_slave_alloc - device add routine
1392 * @sdev: scsi device struct
1393 *
1394 * Returns 0 if ok. Any other return is assumed to be an error and
1395 * the device is ignored.
1396 */
1397static int
1398_scsih_slave_alloc(struct scsi_device *sdev)
1399{
1400 struct Scsi_Host *shost;
1401 struct MPT2SAS_ADAPTER *ioc;
1402 struct MPT2SAS_TARGET *sas_target_priv_data;
1403 struct MPT2SAS_DEVICE *sas_device_priv_data;
1404 struct scsi_target *starget;
1405 struct _raid_device *raid_device;
1406 struct _sas_device *sas_device;
1407 unsigned long flags;
1408
1409 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1410 if (!sas_device_priv_data)
1411 return -ENOMEM;
1412
1413 sas_device_priv_data->lun = sdev->lun;
1414 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1415
1416 starget = scsi_target(sdev);
1417 sas_target_priv_data = starget->hostdata;
1418 sas_target_priv_data->num_luns++;
1419 sas_device_priv_data->sas_target = sas_target_priv_data;
1420 sdev->hostdata = sas_device_priv_data;
1421 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1422 sdev->no_uld_attach = 1;
1423
1424 shost = dev_to_shost(&starget->dev);
1425 ioc = shost_priv(shost);
1426 if (starget->channel == RAID_CHANNEL) {
1427 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1428 raid_device = _scsih_raid_device_find_by_id(ioc,
1429 starget->id, starget->channel);
1430 if (raid_device)
1431 raid_device->sdev = sdev; /* raid is single lun */
1432 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1433 }
1434
1435 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1436 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1437 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1438 sas_target_priv_data->sas_address);
1439 if (sas_device && (sas_device->starget == NULL)) {
1440 sdev_printk(KERN_INFO, sdev,
1441 "%s : sas_device->starget set to starget @ %d\n",
1442 __func__, __LINE__);
1443 sas_device->starget = starget;
1444 }
1445 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1446 }
1447
1448 return 0;
1449}
1450
1451/**
1452 * _scsih_slave_destroy - device destroy routine
1453 * @sdev: scsi device struct
1454 *
1455 * Returns nothing.
1456 */
1457static void
1458_scsih_slave_destroy(struct scsi_device *sdev)
1459{
1460 struct MPT2SAS_TARGET *sas_target_priv_data;
1461 struct scsi_target *starget;
1462 struct Scsi_Host *shost;
1463 struct MPT2SAS_ADAPTER *ioc;
1464 struct _sas_device *sas_device;
1465 unsigned long flags;
1466
1467 if (!sdev->hostdata)
1468 return;
1469
1470 starget = scsi_target(sdev);
1471 sas_target_priv_data = starget->hostdata;
1472 sas_target_priv_data->num_luns--;
1473
1474 shost = dev_to_shost(&starget->dev);
1475 ioc = shost_priv(shost);
1476
1477 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1478 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1479 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1480 sas_target_priv_data->sas_address);
1481 if (sas_device && !sas_target_priv_data->num_luns)
1482 sas_device->starget = NULL;
1483 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1484 }
1485
1486 kfree(sdev->hostdata);
1487 sdev->hostdata = NULL;
1488}
1489
1490/**
1491 * _scsih_display_sata_capabilities - sata capabilities
1492 * @ioc: per adapter object
1493 * @handle: device handle
1494 * @sdev: scsi device struct
1495 */
1496static void
1497_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
1498 u16 handle, struct scsi_device *sdev)
1499{
1500 Mpi2ConfigReply_t mpi_reply;
1501 Mpi2SasDevicePage0_t sas_device_pg0;
1502 u32 ioc_status;
1503 u16 flags;
1504 u32 device_info;
1505
1506 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1507 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
1508 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1509 ioc->name, __FILE__, __LINE__, __func__);
1510 return;
1511 }
1512
1513 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1514 MPI2_IOCSTATUS_MASK;
1515 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1516 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1517 ioc->name, __FILE__, __LINE__, __func__);
1518 return;
1519 }
1520
1521 flags = le16_to_cpu(sas_device_pg0.Flags);
1522 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
1523
1524 sdev_printk(KERN_INFO, sdev,
1525 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1526 "sw_preserve(%s)\n",
1527 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1528 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1529 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1530 "n",
1531 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1532 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1533 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1534}
1535
1536/**
1537 * _scsih_is_raid - return boolean indicating device is raid volume
1538 * @dev the device struct object
1539 */
1540static int
1541_scsih_is_raid(struct device *dev)
1542{
1543 struct scsi_device *sdev = to_scsi_device(dev);
1544 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1545
1546 if (ioc->is_warpdrive)
1547 return 0;
1548 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1549}
1550
1551/**
1552 * _scsih_get_resync - get raid volume resync percent complete
1553 * @dev the device struct object
1554 */
1555static void
1556_scsih_get_resync(struct device *dev)
1557{
1558 struct scsi_device *sdev = to_scsi_device(dev);
1559 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1560 static struct _raid_device *raid_device;
1561 unsigned long flags;
1562 Mpi2RaidVolPage0_t vol_pg0;
1563 Mpi2ConfigReply_t mpi_reply;
1564 u32 volume_status_flags;
1565 u8 percent_complete;
1566 u16 handle;
1567
1568 percent_complete = 0;
1569 handle = 0;
1570 if (ioc->is_warpdrive)
1571 goto out;
1572
1573 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1574 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1575 sdev->channel);
1576 if (raid_device) {
1577 handle = raid_device->handle;
1578 percent_complete = raid_device->percent_complete;
1579 }
1580 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1581
1582 if (!handle)
1583 goto out;
1584
1585 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1586 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
1587 sizeof(Mpi2RaidVolPage0_t))) {
1588 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1589 ioc->name, __FILE__, __LINE__, __func__);
1590 percent_complete = 0;
1591 goto out;
1592 }
1593
1594 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1595 if (!(volume_status_flags &
1596 MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
1597 percent_complete = 0;
1598
1599 out:
1600 raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
1601}
1602
1603/**
1604 * _scsih_get_state - get raid volume level
1605 * @dev the device struct object
1606 */
1607static void
1608_scsih_get_state(struct device *dev)
1609{
1610 struct scsi_device *sdev = to_scsi_device(dev);
1611 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1612 static struct _raid_device *raid_device;
1613 unsigned long flags;
1614 Mpi2RaidVolPage0_t vol_pg0;
1615 Mpi2ConfigReply_t mpi_reply;
1616 u32 volstate;
1617 enum raid_state state = RAID_STATE_UNKNOWN;
1618 u16 handle = 0;
1619
1620 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1621 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1622 sdev->channel);
1623 if (raid_device)
1624 handle = raid_device->handle;
1625 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1626
1627 if (!raid_device)
1628 goto out;
1629
1630 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1631 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
1632 sizeof(Mpi2RaidVolPage0_t))) {
1633 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1634 ioc->name, __FILE__, __LINE__, __func__);
1635 goto out;
1636 }
1637
1638 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1639 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1640 state = RAID_STATE_RESYNCING;
1641 goto out;
1642 }
1643
1644 switch (vol_pg0.VolumeState) {
1645 case MPI2_RAID_VOL_STATE_OPTIMAL:
1646 case MPI2_RAID_VOL_STATE_ONLINE:
1647 state = RAID_STATE_ACTIVE;
1648 break;
1649 case MPI2_RAID_VOL_STATE_DEGRADED:
1650 state = RAID_STATE_DEGRADED;
1651 break;
1652 case MPI2_RAID_VOL_STATE_FAILED:
1653 case MPI2_RAID_VOL_STATE_MISSING:
1654 state = RAID_STATE_OFFLINE;
1655 break;
1656 }
1657 out:
1658 raid_set_state(mpt2sas_raid_template, dev, state);
1659}
1660
1661/**
1662 * _scsih_set_level - set raid level
1663 * @sdev: scsi device struct
1664 * @volume_type: volume type
1665 */
1666static void
1667_scsih_set_level(struct scsi_device *sdev, u8 volume_type)
1668{
1669 enum raid_level level = RAID_LEVEL_UNKNOWN;
1670
1671 switch (volume_type) {
1672 case MPI2_RAID_VOL_TYPE_RAID0:
1673 level = RAID_LEVEL_0;
1674 break;
1675 case MPI2_RAID_VOL_TYPE_RAID10:
1676 level = RAID_LEVEL_10;
1677 break;
1678 case MPI2_RAID_VOL_TYPE_RAID1E:
1679 level = RAID_LEVEL_1E;
1680 break;
1681 case MPI2_RAID_VOL_TYPE_RAID1:
1682 level = RAID_LEVEL_1;
1683 break;
1684 }
1685
1686 raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
1687}
1688
1689/**
1690 * _scsih_get_volume_capabilities - volume capabilities
1691 * @ioc: per adapter object
1692 * @sas_device: the raid_device object
1693 *
1694 * Returns 0 for success, else 1
1695 */
1696static int
1697_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1698 struct _raid_device *raid_device)
1699{
1700 Mpi2RaidVolPage0_t *vol_pg0;
1701 Mpi2RaidPhysDiskPage0_t pd_pg0;
1702 Mpi2SasDevicePage0_t sas_device_pg0;
1703 Mpi2ConfigReply_t mpi_reply;
1704 u16 sz;
1705 u8 num_pds;
1706
1707 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1708 &num_pds)) || !num_pds) {
1709 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1710 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1711 __func__));
1712 return 1;
1713 }
1714
1715 raid_device->num_pds = num_pds;
1716 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1717 sizeof(Mpi2RaidVol0PhysDisk_t));
1718 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1719 if (!vol_pg0) {
1720 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1721 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1722 __func__));
1723 return 1;
1724 }
1725
1726 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1727 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1728 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1729 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1730 __func__));
1731 kfree(vol_pg0);
1732 return 1;
1733 }
1734
1735 raid_device->volume_type = vol_pg0->VolumeType;
1736
1737 /* figure out what the underlying devices are by
1738 * obtaining the device_info bits for the 1st device
1739 */
1740 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1741 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1742 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1743 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1744 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1745 le16_to_cpu(pd_pg0.DevHandle)))) {
1746 raid_device->device_info =
1747 le32_to_cpu(sas_device_pg0.DeviceInfo);
1748 }
1749 }
1750
1751 kfree(vol_pg0);
1752 return 0;
1753}
1754/**
1755 * _scsih_disable_ddio - Disable direct I/O for all the volumes
1756 * @ioc: per adapter object
1757 */
1758static void
1759_scsih_disable_ddio(struct MPT2SAS_ADAPTER *ioc)
1760{
1761 Mpi2RaidVolPage1_t vol_pg1;
1762 Mpi2ConfigReply_t mpi_reply;
1763 struct _raid_device *raid_device;
1764 u16 handle;
1765 u16 ioc_status;
1766 unsigned long flags;
1767
1768 handle = 0xFFFF;
1769 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1770 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1771 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1772 MPI2_IOCSTATUS_MASK;
1773 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1774 break;
1775 handle = le16_to_cpu(vol_pg1.DevHandle);
1776 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1777 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
1778 if (raid_device)
1779 raid_device->direct_io_enabled = 0;
1780 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1781 }
1782 return;
1783}
1784
1785
1786/**
1787 * _scsih_get_num_volumes - Get number of volumes in the ioc
1788 * @ioc: per adapter object
1789 */
1790static u8
1791_scsih_get_num_volumes(struct MPT2SAS_ADAPTER *ioc)
1792{
1793 Mpi2RaidVolPage1_t vol_pg1;
1794 Mpi2ConfigReply_t mpi_reply;
1795 u16 handle;
1796 u8 vol_cnt = 0;
1797 u16 ioc_status;
1798
1799 handle = 0xFFFF;
1800 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1801 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1802 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1803 MPI2_IOCSTATUS_MASK;
1804 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1805 break;
1806 vol_cnt++;
1807 handle = le16_to_cpu(vol_pg1.DevHandle);
1808 }
1809 return vol_cnt;
1810}
1811
1812
1813/**
1814 * _scsih_init_warpdrive_properties - Set properties for warpdrive direct I/O.
1815 * @ioc: per adapter object
1816 * @raid_device: the raid_device object
1817 */
1818static void
1819_scsih_init_warpdrive_properties(struct MPT2SAS_ADAPTER *ioc,
1820 struct _raid_device *raid_device)
1821{
1822 Mpi2RaidVolPage0_t *vol_pg0;
1823 Mpi2RaidPhysDiskPage0_t pd_pg0;
1824 Mpi2ConfigReply_t mpi_reply;
1825 u16 sz;
1826 u8 num_pds, count;
1827 unsigned long stripe_sz, block_sz;
1828 u8 stripe_exp, block_exp;
1829 u64 dev_max_lba;
1830
1831 if (!ioc->is_warpdrive)
1832 return;
1833
1834 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS) {
1835 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1836 "globally as drives are exposed\n", ioc->name);
1837 return;
1838 }
1839 if (_scsih_get_num_volumes(ioc) > 1) {
1840 _scsih_disable_ddio(ioc);
1841 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1842 "globally as number of drives > 1\n", ioc->name);
1843 return;
1844 }
1845 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1846 &num_pds)) || !num_pds) {
1847 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1848 "Failure in computing number of drives\n", ioc->name);
1849 return;
1850 }
1851
1852 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1853 sizeof(Mpi2RaidVol0PhysDisk_t));
1854 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1855 if (!vol_pg0) {
1856 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1857 "Memory allocation failure for RVPG0\n", ioc->name);
1858 return;
1859 }
1860
1861 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1862 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1863 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1864 "Failure in retrieving RVPG0\n", ioc->name);
1865 kfree(vol_pg0);
1866 return;
1867 }
1868
1869 /*
1870 * WARPDRIVE:If number of physical disks in a volume exceeds the max pds
1871 * assumed for WARPDRIVE, disable direct I/O
1872 */
1873 if (num_pds > MPT_MAX_WARPDRIVE_PDS) {
1874 printk(MPT2SAS_WARN_FMT "WarpDrive : Direct IO is disabled "
1875 "for the drive with handle(0x%04x): num_mem=%d, "
1876 "max_mem_allowed=%d\n", ioc->name, raid_device->handle,
1877 num_pds, MPT_MAX_WARPDRIVE_PDS);
1878 kfree(vol_pg0);
1879 return;
1880 }
1881 for (count = 0; count < num_pds; count++) {
1882 if (mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1883 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1884 vol_pg0->PhysDisk[count].PhysDiskNum) ||
1885 le16_to_cpu(pd_pg0.DevHandle) ==
1886 MPT2SAS_INVALID_DEVICE_HANDLE) {
1887 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
1888 "disabled for the drive with handle(0x%04x) member"
1889 "handle retrieval failed for member number=%d\n",
1890 ioc->name, raid_device->handle,
1891 vol_pg0->PhysDisk[count].PhysDiskNum);
1892 goto out_error;
1893 }
1894 /* Disable direct I/O if member drive lba exceeds 4 bytes */
1895 dev_max_lba = le64_to_cpu(pd_pg0.DeviceMaxLBA);
1896 if (dev_max_lba >> 32) {
1897 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
1898 "disabled for the drive with handle(0x%04x) member"
1899 "handle (0x%04x) unsupported max lba 0x%016llx\n",
1900 ioc->name, raid_device->handle,
1901 le16_to_cpu(pd_pg0.DevHandle),
1902 (unsigned long long)dev_max_lba);
1903 goto out_error;
1904 }
1905
1906 raid_device->pd_handle[count] = le16_to_cpu(pd_pg0.DevHandle);
1907 }
1908
1909 /*
1910 * Assumption for WD: Direct I/O is not supported if the volume is
1911 * not RAID0
1912 */
1913 if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0) {
1914 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1915 "for the drive with handle(0x%04x): type=%d, "
1916 "s_sz=%uK, blk_size=%u\n", ioc->name,
1917 raid_device->handle, raid_device->volume_type,
1918 (le32_to_cpu(vol_pg0->StripeSize) *
1919 le16_to_cpu(vol_pg0->BlockSize)) / 1024,
1920 le16_to_cpu(vol_pg0->BlockSize));
1921 goto out_error;
1922 }
1923
1924 stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1925 stripe_exp = find_first_bit(&stripe_sz, 32);
1926 if (stripe_exp == 32) {
1927 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1928 "for the drive with handle(0x%04x) invalid stripe sz %uK\n",
1929 ioc->name, raid_device->handle,
1930 (le32_to_cpu(vol_pg0->StripeSize) *
1931 le16_to_cpu(vol_pg0->BlockSize)) / 1024);
1932 goto out_error;
1933 }
1934 raid_device->stripe_exponent = stripe_exp;
1935 block_sz = le16_to_cpu(vol_pg0->BlockSize);
1936 block_exp = find_first_bit(&block_sz, 16);
1937 if (block_exp == 16) {
1938 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1939 "for the drive with handle(0x%04x) invalid block sz %u\n",
1940 ioc->name, raid_device->handle,
1941 le16_to_cpu(vol_pg0->BlockSize));
1942 goto out_error;
1943 }
1944 raid_device->block_exponent = block_exp;
1945 raid_device->direct_io_enabled = 1;
1946
1947 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is Enabled for the drive"
1948 " with handle(0x%04x)\n", ioc->name, raid_device->handle);
1949 /*
1950 * WARPDRIVE: Though the following fields are not used for direct IO,
1951 * stored for future purpose:
1952 */
1953 raid_device->max_lba = le64_to_cpu(vol_pg0->MaxLBA);
1954 raid_device->stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1955 raid_device->block_sz = le16_to_cpu(vol_pg0->BlockSize);
1956
1957
1958 kfree(vol_pg0);
1959 return;
1960
1961out_error:
1962 raid_device->direct_io_enabled = 0;
1963 for (count = 0; count < num_pds; count++)
1964 raid_device->pd_handle[count] = 0;
1965 kfree(vol_pg0);
1966 return;
1967}
1968
1969/**
1970 * _scsih_enable_tlr - setting TLR flags
1971 * @ioc: per adapter object
1972 * @sdev: scsi device struct
1973 *
1974 * Enabling Transaction Layer Retries for tape devices when
1975 * vpd page 0x90 is present
1976 *
1977 */
1978static void
1979_scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
1980{
1981 /* only for TAPE */
1982 if (sdev->type != TYPE_TAPE)
1983 return;
1984
1985 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1986 return;
1987
1988 sas_enable_tlr(sdev);
1989 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1990 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1991 return;
1992
1993}
1994
1995/**
1996 * _scsih_slave_configure - device configure routine.
1997 * @sdev: scsi device struct
1998 *
1999 * Returns 0 if ok. Any other return is assumed to be an error and
2000 * the device is ignored.
2001 */
2002static int
2003_scsih_slave_configure(struct scsi_device *sdev)
2004{
2005 struct Scsi_Host *shost = sdev->host;
2006 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
2007 struct MPT2SAS_DEVICE *sas_device_priv_data;
2008 struct MPT2SAS_TARGET *sas_target_priv_data;
2009 struct _sas_device *sas_device;
2010 struct _raid_device *raid_device;
2011 unsigned long flags;
2012 int qdepth;
2013 u8 ssp_target = 0;
2014 char *ds = "";
2015 char *r_level = "";
2016 u16 handle, volume_handle = 0;
2017 u64 volume_wwid = 0;
2018
2019 qdepth = 1;
2020 sas_device_priv_data = sdev->hostdata;
2021 sas_device_priv_data->configured_lun = 1;
2022 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
2023 sas_target_priv_data = sas_device_priv_data->sas_target;
2024 handle = sas_target_priv_data->handle;
2025
2026 /* raid volume handling */
2027 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
2028
2029 spin_lock_irqsave(&ioc->raid_device_lock, flags);
2030 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
2031 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
2032 if (!raid_device) {
2033 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2034 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2035 __LINE__, __func__));
2036 return 1;
2037 }
2038
2039 if (_scsih_get_volume_capabilities(ioc, raid_device)) {
2040 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2041 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2042 __LINE__, __func__));
2043 return 1;
2044 }
2045 /*
2046 * WARPDRIVE: Initialize the required data for Direct IO
2047 */
2048 _scsih_init_warpdrive_properties(ioc, raid_device);
2049
2050 /* RAID Queue Depth Support
2051 * IS volume = underlying qdepth of drive type, either
2052 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
2053 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
2054 */
2055 if (raid_device->device_info &
2056 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
2057 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
2058 ds = "SSP";
2059 } else {
2060 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
2061 if (raid_device->device_info &
2062 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
2063 ds = "SATA";
2064 else
2065 ds = "STP";
2066 }
2067
2068 switch (raid_device->volume_type) {
2069 case MPI2_RAID_VOL_TYPE_RAID0:
2070 r_level = "RAID0";
2071 break;
2072 case MPI2_RAID_VOL_TYPE_RAID1E:
2073 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2074 if (ioc->manu_pg10.OEMIdentifier &&
2075 (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
2076 MFG10_GF0_R10_DISPLAY) &&
2077 !(raid_device->num_pds % 2))
2078 r_level = "RAID10";
2079 else
2080 r_level = "RAID1E";
2081 break;
2082 case MPI2_RAID_VOL_TYPE_RAID1:
2083 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2084 r_level = "RAID1";
2085 break;
2086 case MPI2_RAID_VOL_TYPE_RAID10:
2087 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2088 r_level = "RAID10";
2089 break;
2090 case MPI2_RAID_VOL_TYPE_UNKNOWN:
2091 default:
2092 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2093 r_level = "RAIDX";
2094 break;
2095 }
2096
2097 if (!ioc->hide_ir_msg)
2098 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
2099 "wwid(0x%016llx), pd_count(%d), type(%s)\n",
2100 r_level, raid_device->handle,
2101 (unsigned long long)raid_device->wwid,
2102 raid_device->num_pds, ds);
2103 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
2104 /* raid transport support */
2105 if (!ioc->is_warpdrive)
2106 _scsih_set_level(sdev, raid_device->volume_type);
2107 return 0;
2108 }
2109
2110 /* non-raid handling */
2111 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
2112 if (mpt2sas_config_get_volume_handle(ioc, handle,
2113 &volume_handle)) {
2114 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2115 "failure at %s:%d/%s()!\n", ioc->name,
2116 __FILE__, __LINE__, __func__));
2117 return 1;
2118 }
2119 if (volume_handle && mpt2sas_config_get_volume_wwid(ioc,
2120 volume_handle, &volume_wwid)) {
2121 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2122 "failure at %s:%d/%s()!\n", ioc->name,
2123 __FILE__, __LINE__, __func__));
2124 return 1;
2125 }
2126 }
2127
2128 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2129 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2130 sas_device_priv_data->sas_target->sas_address);
2131 if (!sas_device) {
2132 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2133 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2134 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2135 __LINE__, __func__));
2136 return 1;
2137 }
2138 sas_device->volume_handle = volume_handle;
2139 sas_device->volume_wwid = volume_wwid;
2140 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
2141 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
2142 ssp_target = 1;
2143 ds = "SSP";
2144 } else {
2145 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
2146 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
2147 ds = "STP";
2148 else if (sas_device->device_info &
2149 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
2150 ds = "SATA";
2151 }
2152 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
2153 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
2154 ds, sas_device->handle,
2155 (unsigned long long)sas_device->sas_address,
2156 sas_device->phy,
2157 (unsigned long long)sas_device->device_name);
2158 sdev_printk(KERN_INFO, sdev, "%s: "
2159 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
2160 (unsigned long long) sas_device->enclosure_logical_id,
2161 sas_device->slot);
2162
2163 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2164 if (!ssp_target)
2165 _scsih_display_sata_capabilities(ioc, handle, sdev);
2166
2167
2168 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
2169
2170 if (ssp_target) {
2171 sas_read_port_mode_page(sdev);
2172 _scsih_enable_tlr(ioc, sdev);
2173 }
2174 return 0;
2175}
2176
2177/**
2178 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
2179 * @sdev: scsi device struct
2180 * @bdev: pointer to block device context
2181 * @capacity: device size (in 512 byte sectors)
2182 * @params: three element array to place output:
2183 * params[0] number of heads (max 255)
2184 * params[1] number of sectors (max 63)
2185 * params[2] number of cylinders
2186 *
2187 * Return nothing.
2188 */
2189static int
2190_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
2191 sector_t capacity, int params[])
2192{
2193 int heads;
2194 int sectors;
2195 sector_t cylinders;
2196 ulong dummy;
2197
2198 heads = 64;
2199 sectors = 32;
2200
2201 dummy = heads * sectors;
2202 cylinders = capacity;
2203 sector_div(cylinders, dummy);
2204
2205 /*
2206 * Handle extended translation size for logical drives
2207 * > 1Gb
2208 */
2209 if ((ulong)capacity >= 0x200000) {
2210 heads = 255;
2211 sectors = 63;
2212 dummy = heads * sectors;
2213 cylinders = capacity;
2214 sector_div(cylinders, dummy);
2215 }
2216
2217 /* return result */
2218 params[0] = heads;
2219 params[1] = sectors;
2220 params[2] = cylinders;
2221
2222 return 0;
2223}
2224
2225/**
2226 * _scsih_response_code - translation of device response code
2227 * @ioc: per adapter object
2228 * @response_code: response code returned by the device
2229 *
2230 * Return nothing.
2231 */
2232static void
2233_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
2234{
2235 char *desc;
2236
2237 switch (response_code) {
2238 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
2239 desc = "task management request completed";
2240 break;
2241 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
2242 desc = "invalid frame";
2243 break;
2244 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2245 desc = "task management request not supported";
2246 break;
2247 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
2248 desc = "task management request failed";
2249 break;
2250 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2251 desc = "task management request succeeded";
2252 break;
2253 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2254 desc = "invalid lun";
2255 break;
2256 case 0xA:
2257 desc = "overlapped tag attempted";
2258 break;
2259 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2260 desc = "task queued, however not sent to target";
2261 break;
2262 default:
2263 desc = "unknown";
2264 break;
2265 }
2266 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
2267 ioc->name, response_code, desc);
2268}
2269
2270/**
2271 * _scsih_tm_done - tm completion routine
2272 * @ioc: per adapter object
2273 * @smid: system request message index
2274 * @msix_index: MSIX table index supplied by the OS
2275 * @reply: reply message frame(lower 32bit addr)
2276 * Context: none.
2277 *
2278 * The callback handler when using scsih_issue_tm.
2279 *
2280 * Return 1 meaning mf should be freed from _base_interrupt
2281 * 0 means the mf is freed from this function.
2282 */
2283static u8
2284_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
2285{
2286 MPI2DefaultReply_t *mpi_reply;
2287
2288 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
2289 return 1;
2290 if (ioc->tm_cmds.smid != smid)
2291 return 1;
2292 mpt2sas_base_flush_reply_queues(ioc);
2293 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
2294 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
2295 if (mpi_reply) {
2296 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
2297 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
2298 }
2299 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
2300 complete(&ioc->tm_cmds.done);
2301 return 1;
2302}
2303
2304/**
2305 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
2306 * @ioc: per adapter object
2307 * @handle: device handle
2308 *
2309 * During taskmangement request, we need to freeze the device queue.
2310 */
2311void
2312mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2313{
2314 struct MPT2SAS_DEVICE *sas_device_priv_data;
2315 struct scsi_device *sdev;
2316 u8 skip = 0;
2317
2318 shost_for_each_device(sdev, ioc->shost) {
2319 if (skip)
2320 continue;
2321 sas_device_priv_data = sdev->hostdata;
2322 if (!sas_device_priv_data)
2323 continue;
2324 if (sas_device_priv_data->sas_target->handle == handle) {
2325 sas_device_priv_data->sas_target->tm_busy = 1;
2326 skip = 1;
2327 ioc->ignore_loginfos = 1;
2328 }
2329 }
2330}
2331
2332/**
2333 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
2334 * @ioc: per adapter object
2335 * @handle: device handle
2336 *
2337 * During taskmangement request, we need to freeze the device queue.
2338 */
2339void
2340mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2341{
2342 struct MPT2SAS_DEVICE *sas_device_priv_data;
2343 struct scsi_device *sdev;
2344 u8 skip = 0;
2345
2346 shost_for_each_device(sdev, ioc->shost) {
2347 if (skip)
2348 continue;
2349 sas_device_priv_data = sdev->hostdata;
2350 if (!sas_device_priv_data)
2351 continue;
2352 if (sas_device_priv_data->sas_target->handle == handle) {
2353 sas_device_priv_data->sas_target->tm_busy = 0;
2354 skip = 1;
2355 ioc->ignore_loginfos = 0;
2356 }
2357 }
2358}
2359
2360
2361/**
2362 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
2363 * @ioc: per adapter struct
2364 * @device_handle: device handle
2365 * @channel: the channel assigned by the OS
2366 * @id: the id assigned by the OS
2367 * @lun: lun number
2368 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
2369 * @smid_task: smid assigned to the task
2370 * @timeout: timeout in seconds
2371 * @serial_number: the serial_number from scmd
2372 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
2373 * Context: user
2374 *
2375 * A generic API for sending task management requests to firmware.
2376 *
2377 * The callback index is set inside `ioc->tm_cb_idx`.
2378 *
2379 * Return SUCCESS or FAILED.
2380 */
2381int
2382mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
2383 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
2384 unsigned long serial_number, enum mutex_type m_type)
2385{
2386 Mpi2SCSITaskManagementRequest_t *mpi_request;
2387 Mpi2SCSITaskManagementReply_t *mpi_reply;
2388 u16 smid = 0;
2389 u32 ioc_state;
2390 unsigned long timeleft;
2391 struct scsiio_tracker *scsi_lookup = NULL;
2392 int rc;
2393
2394 if (m_type == TM_MUTEX_ON)
2395 mutex_lock(&ioc->tm_cmds.mutex);
2396 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
2397 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
2398 __func__, ioc->name);
2399 rc = FAILED;
2400 goto err_out;
2401 }
2402
2403 if (ioc->shost_recovery || ioc->remove_host ||
2404 ioc->pci_error_recovery) {
2405 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
2406 __func__, ioc->name);
2407 rc = FAILED;
2408 goto err_out;
2409 }
2410
2411 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
2412 if (ioc_state & MPI2_DOORBELL_USED) {
2413 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
2414 "active!\n", ioc->name));
2415 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2416 FORCE_BIG_HAMMER);
2417 rc = (!rc) ? SUCCESS : FAILED;
2418 goto err_out;
2419 }
2420
2421 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2422 mpt2sas_base_fault_info(ioc, ioc_state &
2423 MPI2_DOORBELL_DATA_MASK);
2424 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2425 FORCE_BIG_HAMMER);
2426 rc = (!rc) ? SUCCESS : FAILED;
2427 goto err_out;
2428 }
2429
2430 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
2431 if (!smid) {
2432 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2433 ioc->name, __func__);
2434 rc = FAILED;
2435 goto err_out;
2436 }
2437
2438 if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
2439 scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
2440
2441 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
2442 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
2443 smid_task));
2444 ioc->tm_cmds.status = MPT2_CMD_PENDING;
2445 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2446 ioc->tm_cmds.smid = smid;
2447 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2448 memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
2449 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2450 mpi_request->DevHandle = cpu_to_le16(handle);
2451 mpi_request->TaskType = type;
2452 mpi_request->TaskMID = cpu_to_le16(smid_task);
2453 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2454 mpt2sas_scsih_set_tm_flag(ioc, handle);
2455 init_completion(&ioc->tm_cmds.done);
2456 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2457 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
2458 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
2459 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2460 ioc->name, __func__);
2461 _debug_dump_mf(mpi_request,
2462 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2463 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
2464 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2465 FORCE_BIG_HAMMER);
2466 rc = (!rc) ? SUCCESS : FAILED;
2467 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2468 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2469 goto err_out;
2470 }
2471 }
2472
2473 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
2474 mpi_reply = ioc->tm_cmds.reply;
2475 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
2476 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2477 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2478 le32_to_cpu(mpi_reply->IOCLogInfo),
2479 le32_to_cpu(mpi_reply->TerminationCount)));
2480 if (ioc->logging_level & MPT_DEBUG_TM) {
2481 _scsih_response_code(ioc, mpi_reply->ResponseCode);
2482 if (mpi_reply->IOCStatus)
2483 _debug_dump_mf(mpi_request,
2484 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2485 }
2486 }
2487
2488 switch (type) {
2489 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2490 rc = SUCCESS;
2491 if (scsi_lookup->scmd == NULL)
2492 break;
2493 rc = FAILED;
2494 break;
2495
2496 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2497 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2498 rc = FAILED;
2499 else
2500 rc = SUCCESS;
2501 break;
2502
2503 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
2504 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2505 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2506 rc = FAILED;
2507 else
2508 rc = SUCCESS;
2509 break;
2510 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
2511 rc = SUCCESS;
2512 break;
2513 default:
2514 rc = FAILED;
2515 break;
2516 }
2517
2518 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2519 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2520 if (m_type == TM_MUTEX_ON)
2521 mutex_unlock(&ioc->tm_cmds.mutex);
2522
2523 return rc;
2524
2525 err_out:
2526 if (m_type == TM_MUTEX_ON)
2527 mutex_unlock(&ioc->tm_cmds.mutex);
2528 return rc;
2529}
2530
2531/**
2532 * _scsih_tm_display_info - displays info about the device
2533 * @ioc: per adapter struct
2534 * @scmd: pointer to scsi command object
2535 *
2536 * Called by task management callback handlers.
2537 */
2538static void
2539_scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2540{
2541 struct scsi_target *starget = scmd->device->sdev_target;
2542 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
2543 struct _sas_device *sas_device = NULL;
2544 unsigned long flags;
2545 char *device_str = NULL;
2546
2547 if (!priv_target)
2548 return;
2549 if (ioc->hide_ir_msg)
2550 device_str = "WarpDrive";
2551 else
2552 device_str = "volume";
2553
2554 scsi_print_command(scmd);
2555 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2556 starget_printk(KERN_INFO, starget, "%s handle(0x%04x), "
2557 "%s wwid(0x%016llx)\n", device_str, priv_target->handle,
2558 device_str, (unsigned long long)priv_target->sas_address);
2559 } else {
2560 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2561 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2562 priv_target->sas_address);
2563 if (sas_device) {
2564 if (priv_target->flags &
2565 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2566 starget_printk(KERN_INFO, starget,
2567 "volume handle(0x%04x), "
2568 "volume wwid(0x%016llx)\n",
2569 sas_device->volume_handle,
2570 (unsigned long long)sas_device->volume_wwid);
2571 }
2572 starget_printk(KERN_INFO, starget,
2573 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2574 sas_device->handle,
2575 (unsigned long long)sas_device->sas_address,
2576 sas_device->phy);
2577 starget_printk(KERN_INFO, starget,
2578 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2579 (unsigned long long)sas_device->enclosure_logical_id,
2580 sas_device->slot);
2581 }
2582 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2583 }
2584}
2585
2586/**
2587 * _scsih_abort - eh threads main abort routine
2588 * @scmd: pointer to scsi command object
2589 *
2590 * Returns SUCCESS if command aborted else FAILED
2591 */
2592static int
2593_scsih_abort(struct scsi_cmnd *scmd)
2594{
2595 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2596 struct MPT2SAS_DEVICE *sas_device_priv_data;
2597 u16 smid;
2598 u16 handle;
2599 int r;
2600
2601 sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
2602 "scmd(%p)\n", scmd);
2603 _scsih_tm_display_info(ioc, scmd);
2604
2605 sas_device_priv_data = scmd->device->hostdata;
2606 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2607 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
2608 "scmd(%p)\n", scmd);
2609 scmd->result = DID_NO_CONNECT << 16;
2610 scmd->scsi_done(scmd);
2611 r = SUCCESS;
2612 goto out;
2613 }
2614
2615 /* search for the command */
2616 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2617 if (!smid) {
2618 scmd->result = DID_RESET << 16;
2619 r = SUCCESS;
2620 goto out;
2621 }
2622
2623 /* for hidden raid components and volumes this is not supported */
2624 if (sas_device_priv_data->sas_target->flags &
2625 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2626 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2627 scmd->result = DID_RESET << 16;
2628 r = FAILED;
2629 goto out;
2630 }
2631
2632 mpt2sas_halt_firmware(ioc);
2633
2634 handle = sas_device_priv_data->sas_target->handle;
2635 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2636 scmd->device->id, scmd->device->lun,
2637 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
2638 scmd->serial_number, TM_MUTEX_ON);
2639
2640 out:
2641 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
2642 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2643 return r;
2644}
2645
2646/**
2647 * _scsih_dev_reset - eh threads main device reset routine
2648 * @scmd: pointer to scsi command object
2649 *
2650 * Returns SUCCESS if command aborted else FAILED
2651 */
2652static int
2653_scsih_dev_reset(struct scsi_cmnd *scmd)
2654{
2655 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2656 struct MPT2SAS_DEVICE *sas_device_priv_data;
2657 struct _sas_device *sas_device;
2658 unsigned long flags;
2659 u16 handle;
2660 int r;
2661
2662 struct scsi_target *starget = scmd->device->sdev_target;
2663
2664 starget_printk(KERN_INFO, starget, "attempting device reset! "
2665 "scmd(%p)\n", scmd);
2666 _scsih_tm_display_info(ioc, scmd);
2667
2668 sas_device_priv_data = scmd->device->hostdata;
2669 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2670 starget_printk(KERN_INFO, starget, "device been deleted! "
2671 "scmd(%p)\n", scmd);
2672 scmd->result = DID_NO_CONNECT << 16;
2673 scmd->scsi_done(scmd);
2674 r = SUCCESS;
2675 goto out;
2676 }
2677
2678 /* for hidden raid components obtain the volume_handle */
2679 handle = 0;
2680 if (sas_device_priv_data->sas_target->flags &
2681 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2682 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2683 sas_device = _scsih_sas_device_find_by_handle(ioc,
2684 sas_device_priv_data->sas_target->handle);
2685 if (sas_device)
2686 handle = sas_device->volume_handle;
2687 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2688 } else
2689 handle = sas_device_priv_data->sas_target->handle;
2690
2691 if (!handle) {
2692 scmd->result = DID_RESET << 16;
2693 r = FAILED;
2694 goto out;
2695 }
2696
2697 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2698 scmd->device->id, scmd->device->lun,
2699 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
2700 TM_MUTEX_ON);
2701
2702 out:
2703 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2704 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2705 return r;
2706}
2707
2708/**
2709 * _scsih_target_reset - eh threads main target reset routine
2710 * @scmd: pointer to scsi command object
2711 *
2712 * Returns SUCCESS if command aborted else FAILED
2713 */
2714static int
2715_scsih_target_reset(struct scsi_cmnd *scmd)
2716{
2717 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2718 struct MPT2SAS_DEVICE *sas_device_priv_data;
2719 struct _sas_device *sas_device;
2720 unsigned long flags;
2721 u16 handle;
2722 int r;
2723 struct scsi_target *starget = scmd->device->sdev_target;
2724
2725 starget_printk(KERN_INFO, starget, "attempting target reset! "
2726 "scmd(%p)\n", scmd);
2727 _scsih_tm_display_info(ioc, scmd);
2728
2729 sas_device_priv_data = scmd->device->hostdata;
2730 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
2731 starget_printk(KERN_INFO, starget, "target been deleted! "
2732 "scmd(%p)\n", scmd);
2733 scmd->result = DID_NO_CONNECT << 16;
2734 scmd->scsi_done(scmd);
2735 r = SUCCESS;
2736 goto out;
2737 }
2738
2739 /* for hidden raid components obtain the volume_handle */
2740 handle = 0;
2741 if (sas_device_priv_data->sas_target->flags &
2742 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2743 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2744 sas_device = _scsih_sas_device_find_by_handle(ioc,
2745 sas_device_priv_data->sas_target->handle);
2746 if (sas_device)
2747 handle = sas_device->volume_handle;
2748 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2749 } else
2750 handle = sas_device_priv_data->sas_target->handle;
2751
2752 if (!handle) {
2753 scmd->result = DID_RESET << 16;
2754 r = FAILED;
2755 goto out;
2756 }
2757
2758 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2759 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
2760 30, 0, TM_MUTEX_ON);
2761
2762 out:
2763 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2764 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2765 return r;
2766}
2767
2768/**
2769 * _scsih_host_reset - eh threads main host reset routine
2770 * @scmd: pointer to scsi command object
2771 *
2772 * Returns SUCCESS if command aborted else FAILED
2773 */
2774static int
2775_scsih_host_reset(struct scsi_cmnd *scmd)
2776{
2777 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2778 int r, retval;
2779
2780 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2781 ioc->name, scmd);
2782 scsi_print_command(scmd);
2783
2784 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2785 FORCE_BIG_HAMMER);
2786 r = (retval < 0) ? FAILED : SUCCESS;
2787 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2788 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2789
2790 return r;
2791}
2792
2793/**
2794 * _scsih_fw_event_add - insert and queue up fw_event
2795 * @ioc: per adapter object
2796 * @fw_event: object describing the event
2797 * Context: This function will acquire ioc->fw_event_lock.
2798 *
2799 * This adds the firmware event object into link list, then queues it up to
2800 * be processed from user context.
2801 *
2802 * Return nothing.
2803 */
2804static void
2805_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2806{
2807 unsigned long flags;
2808
2809 if (ioc->firmware_event_thread == NULL)
2810 return;
2811
2812 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2813 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2814 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2815 queue_delayed_work(ioc->firmware_event_thread,
2816 &fw_event->delayed_work, 0);
2817 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2818}
2819
2820/**
2821 * _scsih_fw_event_free - delete fw_event
2822 * @ioc: per adapter object
2823 * @fw_event: object describing the event
2824 * Context: This function will acquire ioc->fw_event_lock.
2825 *
2826 * This removes firmware event object from link list, frees associated memory.
2827 *
2828 * Return nothing.
2829 */
2830static void
2831_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2832 *fw_event)
2833{
2834 unsigned long flags;
2835
2836 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2837 list_del(&fw_event->list);
2838 kfree(fw_event->event_data);
2839 kfree(fw_event);
2840 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2841}
2842
2843
2844/**
2845 * _scsih_error_recovery_delete_devices - remove devices not responding
2846 * @ioc: per adapter object
2847 *
2848 * Return nothing.
2849 */
2850static void
2851_scsih_error_recovery_delete_devices(struct MPT2SAS_ADAPTER *ioc)
2852{
2853 struct fw_event_work *fw_event;
2854
2855 if (ioc->is_driver_loading)
2856 return;
2857
2858 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2859 if (!fw_event)
2860 return;
2861
2862 fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES;
2863 fw_event->ioc = ioc;
2864 _scsih_fw_event_add(ioc, fw_event);
2865}
2866
2867/**
2868 * mpt2sas_port_enable_complete - port enable completed (fake event)
2869 * @ioc: per adapter object
2870 *
2871 * Return nothing.
2872 */
2873void
2874mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc)
2875{
2876 struct fw_event_work *fw_event;
2877
2878 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2879 if (!fw_event)
2880 return;
2881 fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE;
2882 fw_event->ioc = ioc;
2883 _scsih_fw_event_add(ioc, fw_event);
2884}
2885
2886/**
2887 * _scsih_fw_event_cleanup_queue - cleanup event queue
2888 * @ioc: per adapter object
2889 *
2890 * Walk the firmware event queue, either killing timers, or waiting
2891 * for outstanding events to complete
2892 *
2893 * Return nothing.
2894 */
2895static void
2896_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
2897{
2898 struct fw_event_work *fw_event, *next;
2899
2900 if (list_empty(&ioc->fw_event_list) ||
2901 !ioc->firmware_event_thread || in_interrupt())
2902 return;
2903
2904 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2905 if (cancel_delayed_work(&fw_event->delayed_work)) {
2906 _scsih_fw_event_free(ioc, fw_event);
2907 continue;
2908 }
2909 fw_event->cancel_pending_work = 1;
2910 }
2911}
2912
2913/**
2914 * _scsih_ublock_io_all_device - unblock every device
2915 * @ioc: per adapter object
2916 *
2917 * change the device state from block to running
2918 */
2919static void
2920_scsih_ublock_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2921{
2922 struct MPT2SAS_DEVICE *sas_device_priv_data;
2923 struct scsi_device *sdev;
2924
2925 shost_for_each_device(sdev, ioc->shost) {
2926 sas_device_priv_data = sdev->hostdata;
2927 if (!sas_device_priv_data)
2928 continue;
2929 if (!sas_device_priv_data->block)
2930 continue;
2931 sas_device_priv_data->block = 0;
2932 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_running, "
2933 "handle(0x%04x)\n",
2934 sas_device_priv_data->sas_target->handle));
2935 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2936 }
2937}
2938/**
2939 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2940 * @ioc: per adapter object
2941 * @handle: device handle
2942 *
2943 * During device pull we need to appropiately set the sdev state.
2944 */
2945static void
2946_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
2947{
2948 struct MPT2SAS_DEVICE *sas_device_priv_data;
2949 struct scsi_device *sdev;
2950
2951 shost_for_each_device(sdev, ioc->shost) {
2952 sas_device_priv_data = sdev->hostdata;
2953 if (!sas_device_priv_data)
2954 continue;
2955 if (!sas_device_priv_data->block)
2956 continue;
2957 if (sas_device_priv_data->sas_target->sas_address ==
2958 sas_address) {
2959 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2960 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2961 "sas address(0x%016llx)\n", ioc->name,
2962 (unsigned long long)sas_address));
2963 sas_device_priv_data->block = 0;
2964 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2965 }
2966 }
2967}
2968
2969/**
2970 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
2971 * @ioc: per adapter object
2972 * @handle: device handle
2973 *
2974 * During device pull we need to appropiately set the sdev state.
2975 */
2976static void
2977_scsih_block_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2978{
2979 struct MPT2SAS_DEVICE *sas_device_priv_data;
2980 struct scsi_device *sdev;
2981
2982 shost_for_each_device(sdev, ioc->shost) {
2983 sas_device_priv_data = sdev->hostdata;
2984 if (!sas_device_priv_data)
2985 continue;
2986 if (sas_device_priv_data->block)
2987 continue;
2988 sas_device_priv_data->block = 1;
2989 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_blocked, "
2990 "handle(0x%04x)\n",
2991 sas_device_priv_data->sas_target->handle));
2992 scsi_internal_device_block(sdev);
2993 }
2994}
2995
2996
2997/**
2998 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2999 * @ioc: per adapter object
3000 * @handle: device handle
3001 *
3002 * During device pull we need to appropiately set the sdev state.
3003 */
3004static void
3005_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3006{
3007 struct MPT2SAS_DEVICE *sas_device_priv_data;
3008 struct scsi_device *sdev;
3009
3010 shost_for_each_device(sdev, ioc->shost) {
3011 sas_device_priv_data = sdev->hostdata;
3012 if (!sas_device_priv_data)
3013 continue;
3014 if (sas_device_priv_data->block)
3015 continue;
3016 if (sas_device_priv_data->sas_target->handle == handle) {
3017 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
3018 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
3019 "handle(0x%04x)\n", ioc->name, handle));
3020 sas_device_priv_data->block = 1;
3021 scsi_internal_device_block(sdev);
3022 }
3023 }
3024}
3025
3026/**
3027 * _scsih_block_io_to_children_attached_to_ex
3028 * @ioc: per adapter object
3029 * @sas_expander: the sas_device object
3030 *
3031 * This routine set sdev state to SDEV_BLOCK for all devices
3032 * attached to this expander. This function called when expander is
3033 * pulled.
3034 */
3035static void
3036_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
3037 struct _sas_node *sas_expander)
3038{
3039 struct _sas_port *mpt2sas_port;
3040 struct _sas_device *sas_device;
3041 struct _sas_node *expander_sibling;
3042 unsigned long flags;
3043
3044 if (!sas_expander)
3045 return;
3046
3047 list_for_each_entry(mpt2sas_port,
3048 &sas_expander->sas_port_list, port_list) {
3049 if (mpt2sas_port->remote_identify.device_type ==
3050 SAS_END_DEVICE) {
3051 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3052 sas_device =
3053 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3054 mpt2sas_port->remote_identify.sas_address);
3055 if (sas_device)
3056 set_bit(sas_device->handle,
3057 ioc->blocking_handles);
3058 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3059 }
3060 }
3061
3062 list_for_each_entry(mpt2sas_port,
3063 &sas_expander->sas_port_list, port_list) {
3064
3065 if (mpt2sas_port->remote_identify.device_type ==
3066 SAS_EDGE_EXPANDER_DEVICE ||
3067 mpt2sas_port->remote_identify.device_type ==
3068 SAS_FANOUT_EXPANDER_DEVICE) {
3069 expander_sibling =
3070 mpt2sas_scsih_expander_find_by_sas_address(
3071 ioc, mpt2sas_port->remote_identify.sas_address);
3072 _scsih_block_io_to_children_attached_to_ex(ioc,
3073 expander_sibling);
3074 }
3075 }
3076}
3077
3078/**
3079 * _scsih_block_io_to_children_attached_directly
3080 * @ioc: per adapter object
3081 * @event_data: topology change event data
3082 *
3083 * This routine set sdev state to SDEV_BLOCK for all devices
3084 * direct attached during device pull.
3085 */
3086static void
3087_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
3088 Mpi2EventDataSasTopologyChangeList_t *event_data)
3089{
3090 int i;
3091 u16 handle;
3092 u16 reason_code;
3093 u8 phy_number;
3094
3095 for (i = 0; i < event_data->NumEntries; i++) {
3096 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3097 if (!handle)
3098 continue;
3099 phy_number = event_data->StartPhyNum + i;
3100 reason_code = event_data->PHY[i].PhyStatus &
3101 MPI2_EVENT_SAS_TOPO_RC_MASK;
3102 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
3103 _scsih_block_io_device(ioc, handle);
3104 }
3105}
3106
3107/**
3108 * _scsih_tm_tr_send - send task management request
3109 * @ioc: per adapter object
3110 * @handle: device handle
3111 * Context: interrupt time.
3112 *
3113 * This code is to initiate the device removal handshake protocol
3114 * with controller firmware. This function will issue target reset
3115 * using high priority request queue. It will send a sas iounit
3116 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
3117 *
3118 * This is designed to send muliple task management request at the same
3119 * time to the fifo. If the fifo is full, we will append the request,
3120 * and process it in a future completion.
3121 */
3122static void
3123_scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3124{
3125 Mpi2SCSITaskManagementRequest_t *mpi_request;
3126 u16 smid;
3127 struct _sas_device *sas_device;
3128 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
3129 u64 sas_address = 0;
3130 unsigned long flags;
3131 struct _tr_list *delayed_tr;
3132 u32 ioc_state;
3133
3134 if (ioc->remove_host) {
3135 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
3136 "removed: handle(0x%04x)\n", __func__, ioc->name, handle));
3137 return;
3138 } else if (ioc->pci_error_recovery) {
3139 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
3140 "error recovery: handle(0x%04x)\n", __func__, ioc->name,
3141 handle));
3142 return;
3143 }
3144 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3145 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3146 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
3147 "operational: handle(0x%04x)\n", __func__, ioc->name,
3148 handle));
3149 return;
3150 }
3151
3152 /* if PD, then return */
3153 if (test_bit(handle, ioc->pd_handles))
3154 return;
3155
3156 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3157 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3158 if (sas_device && sas_device->starget &&
3159 sas_device->starget->hostdata) {
3160 sas_target_priv_data = sas_device->starget->hostdata;
3161 sas_target_priv_data->deleted = 1;
3162 sas_address = sas_device->sas_address;
3163 }
3164 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3165
3166 if (sas_target_priv_data) {
3167 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "setting delete flag: "
3168 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, handle,
3169 (unsigned long long)sas_address));
3170 _scsih_ublock_io_device(ioc, sas_address);
3171 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
3172 }
3173
3174 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
3175 if (!smid) {
3176 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3177 if (!delayed_tr)
3178 return;
3179 INIT_LIST_HEAD(&delayed_tr->list);
3180 delayed_tr->handle = handle;
3181 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3182 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3183 "DELAYED:tr:handle(0x%04x), (open)\n",
3184 ioc->name, handle));
3185 return;
3186 }
3187
3188 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3189 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3190 ioc->tm_tr_cb_idx));
3191 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3192 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3193 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3194 mpi_request->DevHandle = cpu_to_le16(handle);
3195 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3196 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3197}
3198
3199
3200
3201/**
3202 * _scsih_sas_control_complete - completion routine
3203 * @ioc: per adapter object
3204 * @smid: system request message index
3205 * @msix_index: MSIX table index supplied by the OS
3206 * @reply: reply message frame(lower 32bit addr)
3207 * Context: interrupt time.
3208 *
3209 * This is the sas iounit control completion routine.
3210 * This code is part of the code to initiate the device removal
3211 * handshake protocol with controller firmware.
3212 *
3213 * Return 1 meaning mf should be freed from _base_interrupt
3214 * 0 means the mf is freed from this function.
3215 */
3216static u8
3217_scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3218 u8 msix_index, u32 reply)
3219{
3220 Mpi2SasIoUnitControlReply_t *mpi_reply =
3221 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3222 if (likely(mpi_reply)) {
3223 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3224 "sc_complete:handle(0x%04x), (open) "
3225 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
3226 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
3227 le16_to_cpu(mpi_reply->IOCStatus),
3228 le32_to_cpu(mpi_reply->IOCLogInfo)));
3229 } else {
3230 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3231 ioc->name, __FILE__, __LINE__, __func__);
3232 }
3233 return 1;
3234}
3235
3236/**
3237 * _scsih_tm_tr_volume_send - send target reset request for volumes
3238 * @ioc: per adapter object
3239 * @handle: device handle
3240 * Context: interrupt time.
3241 *
3242 * This is designed to send muliple task management request at the same
3243 * time to the fifo. If the fifo is full, we will append the request,
3244 * and process it in a future completion.
3245 */
3246static void
3247_scsih_tm_tr_volume_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3248{
3249 Mpi2SCSITaskManagementRequest_t *mpi_request;
3250 u16 smid;
3251 struct _tr_list *delayed_tr;
3252
3253 if (ioc->shost_recovery || ioc->remove_host ||
3254 ioc->pci_error_recovery) {
3255 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3256 "progress!\n", __func__, ioc->name));
3257 return;
3258 }
3259
3260 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
3261 if (!smid) {
3262 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3263 if (!delayed_tr)
3264 return;
3265 INIT_LIST_HEAD(&delayed_tr->list);
3266 delayed_tr->handle = handle;
3267 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
3268 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3269 "DELAYED:tr:handle(0x%04x), (open)\n",
3270 ioc->name, handle));
3271 return;
3272 }
3273
3274 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3275 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3276 ioc->tm_tr_volume_cb_idx));
3277 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3278 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3279 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3280 mpi_request->DevHandle = cpu_to_le16(handle);
3281 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3282 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3283}
3284
3285/**
3286 * _scsih_tm_volume_tr_complete - target reset completion
3287 * @ioc: per adapter object
3288 * @smid: system request message index
3289 * @msix_index: MSIX table index supplied by the OS
3290 * @reply: reply message frame(lower 32bit addr)
3291 * Context: interrupt time.
3292 *
3293 * Return 1 meaning mf should be freed from _base_interrupt
3294 * 0 means the mf is freed from this function.
3295 */
3296static u8
3297_scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3298 u8 msix_index, u32 reply)
3299{
3300 u16 handle;
3301 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3302 Mpi2SCSITaskManagementReply_t *mpi_reply =
3303 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3304
3305 if (ioc->shost_recovery || ioc->remove_host ||
3306 ioc->pci_error_recovery) {
3307 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3308 "progress!\n", __func__, ioc->name));
3309 return 1;
3310 }
3311 if (unlikely(!mpi_reply)) {
3312 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3313 ioc->name, __FILE__, __LINE__, __func__);
3314 return 1;
3315 }
3316 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3317 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3318 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3319 dewtprintk(ioc, printk("spurious interrupt: "
3320 "handle(0x%04x:0x%04x), smid(%d)!!!\n", handle,
3321 le16_to_cpu(mpi_reply->DevHandle), smid));
3322 return 0;
3323 }
3324
3325 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3326 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3327 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3328 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3329 le32_to_cpu(mpi_reply->IOCLogInfo),
3330 le32_to_cpu(mpi_reply->TerminationCount)));
3331
3332 return _scsih_check_for_pending_tm(ioc, smid);
3333}
3334
3335/**
3336 * _scsih_tm_tr_complete -
3337 * @ioc: per adapter object
3338 * @smid: system request message index
3339 * @msix_index: MSIX table index supplied by the OS
3340 * @reply: reply message frame(lower 32bit addr)
3341 * Context: interrupt time.
3342 *
3343 * This is the target reset completion routine.
3344 * This code is part of the code to initiate the device removal
3345 * handshake protocol with controller firmware.
3346 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
3347 *
3348 * Return 1 meaning mf should be freed from _base_interrupt
3349 * 0 means the mf is freed from this function.
3350 */
3351static u8
3352_scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
3353 u32 reply)
3354{
3355 u16 handle;
3356 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3357 Mpi2SCSITaskManagementReply_t *mpi_reply =
3358 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3359 Mpi2SasIoUnitControlRequest_t *mpi_request;
3360 u16 smid_sas_ctrl;
3361 u32 ioc_state;
3362
3363 if (ioc->remove_host) {
3364 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
3365 "removed\n", __func__, ioc->name));
3366 return 1;
3367 } else if (ioc->pci_error_recovery) {
3368 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
3369 "error recovery\n", __func__, ioc->name));
3370 return 1;
3371 }
3372 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3373 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3374 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
3375 "operational\n", __func__, ioc->name));
3376 return 1;
3377 }
3378 if (unlikely(!mpi_reply)) {
3379 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3380 ioc->name, __FILE__, __LINE__, __func__);
3381 return 1;
3382 }
3383 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3384 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3385 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3386 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
3387 "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
3388 le16_to_cpu(mpi_reply->DevHandle), smid));
3389 return 0;
3390 }
3391
3392 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3393 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3394 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3395 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3396 le32_to_cpu(mpi_reply->IOCLogInfo),
3397 le32_to_cpu(mpi_reply->TerminationCount)));
3398
3399 smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
3400 if (!smid_sas_ctrl) {
3401 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3402 ioc->name, __func__);
3403 return 1;
3404 }
3405
3406 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
3407 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
3408 ioc->tm_sas_control_cb_idx));
3409 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
3410 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3411 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3412 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
3413 mpi_request->DevHandle = mpi_request_tm->DevHandle;
3414 mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
3415
3416 return _scsih_check_for_pending_tm(ioc, smid);
3417}
3418
3419/**
3420 * _scsih_check_for_pending_tm - check for pending task management
3421 * @ioc: per adapter object
3422 * @smid: system request message index
3423 *
3424 * This will check delayed target reset list, and feed the
3425 * next reqeust.
3426 *
3427 * Return 1 meaning mf should be freed from _base_interrupt
3428 * 0 means the mf is freed from this function.
3429 */
3430static u8
3431_scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3432{
3433 struct _tr_list *delayed_tr;
3434
3435 if (!list_empty(&ioc->delayed_tr_volume_list)) {
3436 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
3437 struct _tr_list, list);
3438 mpt2sas_base_free_smid(ioc, smid);
3439 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
3440 list_del(&delayed_tr->list);
3441 kfree(delayed_tr);
3442 return 0;
3443 }
3444
3445 if (!list_empty(&ioc->delayed_tr_list)) {
3446 delayed_tr = list_entry(ioc->delayed_tr_list.next,
3447 struct _tr_list, list);
3448 mpt2sas_base_free_smid(ioc, smid);
3449 _scsih_tm_tr_send(ioc, delayed_tr->handle);
3450 list_del(&delayed_tr->list);
3451 kfree(delayed_tr);
3452 return 0;
3453 }
3454
3455 return 1;
3456}
3457
3458/**
3459 * _scsih_check_topo_delete_events - sanity check on topo events
3460 * @ioc: per adapter object
3461 * @event_data: the event data payload
3462 *
3463 * This routine added to better handle cable breaker.
3464 *
3465 * This handles the case where driver receives multiple expander
3466 * add and delete events in a single shot. When there is a delete event
3467 * the routine will void any pending add events waiting in the event queue.
3468 *
3469 * Return nothing.
3470 */
3471static void
3472_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
3473 Mpi2EventDataSasTopologyChangeList_t *event_data)
3474{
3475 struct fw_event_work *fw_event;
3476 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
3477 u16 expander_handle;
3478 struct _sas_node *sas_expander;
3479 unsigned long flags;
3480 int i, reason_code;
3481 u16 handle;
3482
3483 for (i = 0 ; i < event_data->NumEntries; i++) {
3484 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3485 if (!handle)
3486 continue;
3487 reason_code = event_data->PHY[i].PhyStatus &
3488 MPI2_EVENT_SAS_TOPO_RC_MASK;
3489 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
3490 _scsih_tm_tr_send(ioc, handle);
3491 }
3492
3493 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3494 if (expander_handle < ioc->sas_hba.num_phys) {
3495 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3496 return;
3497 }
3498 if (event_data->ExpStatus ==
3499 MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
3500 /* put expander attached devices into blocking state */
3501 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3502 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3503 expander_handle);
3504 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
3505 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3506 do {
3507 handle = find_first_bit(ioc->blocking_handles,
3508 ioc->facts.MaxDevHandle);
3509 if (handle < ioc->facts.MaxDevHandle)
3510 _scsih_block_io_device(ioc, handle);
3511 } while (test_and_clear_bit(handle, ioc->blocking_handles));
3512 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
3513 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3514
3515 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3516 return;
3517
3518 /* mark ignore flag for pending events */
3519 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3520 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3521 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3522 fw_event->ignore)
3523 continue;
3524 local_event_data = fw_event->event_data;
3525 if (local_event_data->ExpStatus ==
3526 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3527 local_event_data->ExpStatus ==
3528 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3529 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3530 expander_handle) {
3531 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3532 "setting ignoring flag\n", ioc->name));
3533 fw_event->ignore = 1;
3534 }
3535 }
3536 }
3537 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3538}
3539
3540/**
3541 * _scsih_set_volume_delete_flag - setting volume delete flag
3542 * @ioc: per adapter object
3543 * @handle: device handle
3544 *
3545 * This
3546 * Return nothing.
3547 */
3548static void
3549_scsih_set_volume_delete_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3550{
3551 struct _raid_device *raid_device;
3552 struct MPT2SAS_TARGET *sas_target_priv_data;
3553 unsigned long flags;
3554
3555 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3556 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3557 if (raid_device && raid_device->starget &&
3558 raid_device->starget->hostdata) {
3559 sas_target_priv_data =
3560 raid_device->starget->hostdata;
3561 sas_target_priv_data->deleted = 1;
3562 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3563 "setting delete flag: handle(0x%04x), "
3564 "wwid(0x%016llx)\n", ioc->name, handle,
3565 (unsigned long long) raid_device->wwid));
3566 }
3567 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3568}
3569
3570/**
3571 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3572 * @handle: input handle
3573 * @a: handle for volume a
3574 * @b: handle for volume b
3575 *
3576 * IR firmware only supports two raid volumes. The purpose of this
3577 * routine is to set the volume handle in either a or b. When the given
3578 * input handle is non-zero, or when a and b have not been set before.
3579 */
3580static void
3581_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3582{
3583 if (!handle || handle == *a || handle == *b)
3584 return;
3585 if (!*a)
3586 *a = handle;
3587 else if (!*b)
3588 *b = handle;
3589}
3590
3591/**
3592 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3593 * @ioc: per adapter object
3594 * @event_data: the event data payload
3595 * Context: interrupt time.
3596 *
3597 * This routine will send target reset to volume, followed by target
3598 * resets to the PDs. This is called when a PD has been removed, or
3599 * volume has been deleted or removed. When the target reset is sent
3600 * to volume, the PD target resets need to be queued to start upon
3601 * completion of the volume target reset.
3602 *
3603 * Return nothing.
3604 */
3605static void
3606_scsih_check_ir_config_unhide_events(struct MPT2SAS_ADAPTER *ioc,
3607 Mpi2EventDataIrConfigChangeList_t *event_data)
3608{
3609 Mpi2EventIrConfigElement_t *element;
3610 int i;
3611 u16 handle, volume_handle, a, b;
3612 struct _tr_list *delayed_tr;
3613
3614 a = 0;
3615 b = 0;
3616
3617 if (ioc->is_warpdrive)
3618 return;
3619
3620 /* Volume Resets for Deleted or Removed */
3621 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3622 for (i = 0; i < event_data->NumElements; i++, element++) {
3623 if (element->ReasonCode ==
3624 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3625 element->ReasonCode ==
3626 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3627 volume_handle = le16_to_cpu(element->VolDevHandle);
3628 _scsih_set_volume_delete_flag(ioc, volume_handle);
3629 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3630 }
3631 }
3632
3633 /* Volume Resets for UNHIDE events */
3634 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3635 for (i = 0; i < event_data->NumElements; i++, element++) {
3636 if (le32_to_cpu(event_data->Flags) &
3637 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3638 continue;
3639 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3640 volume_handle = le16_to_cpu(element->VolDevHandle);
3641 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3642 }
3643 }
3644
3645 if (a)
3646 _scsih_tm_tr_volume_send(ioc, a);
3647 if (b)
3648 _scsih_tm_tr_volume_send(ioc, b);
3649
3650 /* PD target resets */
3651 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3652 for (i = 0; i < event_data->NumElements; i++, element++) {
3653 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3654 continue;
3655 handle = le16_to_cpu(element->PhysDiskDevHandle);
3656 volume_handle = le16_to_cpu(element->VolDevHandle);
3657 clear_bit(handle, ioc->pd_handles);
3658 if (!volume_handle)
3659 _scsih_tm_tr_send(ioc, handle);
3660 else if (volume_handle == a || volume_handle == b) {
3661 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3662 BUG_ON(!delayed_tr);
3663 INIT_LIST_HEAD(&delayed_tr->list);
3664 delayed_tr->handle = handle;
3665 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3666 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3667 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3668 handle));
3669 } else
3670 _scsih_tm_tr_send(ioc, handle);
3671 }
3672}
3673
3674
3675/**
3676 * _scsih_check_volume_delete_events - set delete flag for volumes
3677 * @ioc: per adapter object
3678 * @event_data: the event data payload
3679 * Context: interrupt time.
3680 *
3681 * This will handle the case when the cable connected to entire volume is
3682 * pulled. We will take care of setting the deleted flag so normal IO will
3683 * not be sent.
3684 *
3685 * Return nothing.
3686 */
3687static void
3688_scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
3689 Mpi2EventDataIrVolume_t *event_data)
3690{
3691 u32 state;
3692
3693 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3694 return;
3695 state = le32_to_cpu(event_data->NewValue);
3696 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3697 MPI2_RAID_VOL_STATE_FAILED)
3698 _scsih_set_volume_delete_flag(ioc,
3699 le16_to_cpu(event_data->VolDevHandle));
3700}
3701
3702/**
3703 * _scsih_flush_running_cmds - completing outstanding commands.
3704 * @ioc: per adapter object
3705 *
3706 * The flushing out of all pending scmd commands following host reset,
3707 * where all IO is dropped to the floor.
3708 *
3709 * Return nothing.
3710 */
3711static void
3712_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
3713{
3714 struct scsi_cmnd *scmd;
3715 u16 smid;
3716 u16 count = 0;
3717
3718 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3719 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
3720 if (!scmd)
3721 continue;
3722 count++;
3723 mpt2sas_base_free_smid(ioc, smid);
3724 scsi_dma_unmap(scmd);
3725 if (ioc->pci_error_recovery)
3726 scmd->result = DID_NO_CONNECT << 16;
3727 else
3728 scmd->result = DID_RESET << 16;
3729 scmd->scsi_done(scmd);
3730 }
3731 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
3732 ioc->name, count));
3733}
3734
3735/**
3736 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3737 * @scmd: pointer to scsi command object
3738 * @mpi_request: pointer to the SCSI_IO reqest message frame
3739 *
3740 * Supporting protection 1 and 3.
3741 *
3742 * Returns nothing
3743 */
3744static void
3745_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
3746{
3747 u16 eedp_flags;
3748 unsigned char prot_op = scsi_get_prot_op(scmd);
3749 unsigned char prot_type = scsi_get_prot_type(scmd);
3750
3751 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3752 return;
3753
3754 if (prot_op == SCSI_PROT_READ_STRIP)
3755 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3756 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3757 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3758 else
3759 return;
3760
3761 switch (prot_type) {
3762 case SCSI_PROT_DIF_TYPE1:
3763 case SCSI_PROT_DIF_TYPE2:
3764
3765 /*
3766 * enable ref/guard checking
3767 * auto increment ref tag
3768 */
3769 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3770 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3771 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3772 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3773 cpu_to_be32(scsi_get_lba(scmd));
3774 break;
3775
3776 case SCSI_PROT_DIF_TYPE3:
3777
3778 /*
3779 * enable guard checking
3780 */
3781 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3782 break;
3783 }
3784 mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
3785 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3786}
3787
3788/**
3789 * _scsih_eedp_error_handling - return sense code for EEDP errors
3790 * @scmd: pointer to scsi command object
3791 * @ioc_status: ioc status
3792 *
3793 * Returns nothing
3794 */
3795static void
3796_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3797{
3798 u8 ascq;
3799
3800 switch (ioc_status) {
3801 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3802 ascq = 0x01;
3803 break;
3804 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3805 ascq = 0x02;
3806 break;
3807 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3808 ascq = 0x03;
3809 break;
3810 default:
3811 ascq = 0x00;
3812 break;
3813 }
3814
3815 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10, ascq);
3816 scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
3817 SAM_STAT_CHECK_CONDITION;
3818}
3819
3820/**
3821 * _scsih_scsi_direct_io_get - returns direct io flag
3822 * @ioc: per adapter object
3823 * @smid: system request message index
3824 *
3825 * Returns the smid stored scmd pointer.
3826 */
3827static inline u8
3828_scsih_scsi_direct_io_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3829{
3830 return ioc->scsi_lookup[smid - 1].direct_io;
3831}
3832
3833/**
3834 * _scsih_scsi_direct_io_set - sets direct io flag
3835 * @ioc: per adapter object
3836 * @smid: system request message index
3837 * @direct_io: Zero or non-zero value to set in the direct_io flag
3838 *
3839 * Returns Nothing.
3840 */
3841static inline void
3842_scsih_scsi_direct_io_set(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 direct_io)
3843{
3844 ioc->scsi_lookup[smid - 1].direct_io = direct_io;
3845}
3846
3847
3848/**
3849 * _scsih_setup_direct_io - setup MPI request for WARPDRIVE Direct I/O
3850 * @ioc: per adapter object
3851 * @scmd: pointer to scsi command object
3852 * @raid_device: pointer to raid device data structure
3853 * @mpi_request: pointer to the SCSI_IO reqest message frame
3854 * @smid: system request message index
3855 *
3856 * Returns nothing
3857 */
3858static void
3859_scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3860 struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request,
3861 u16 smid)
3862{
3863 u32 v_lba, p_lba, stripe_off, stripe_unit, column, io_size;
3864 u32 stripe_sz, stripe_exp;
3865 u8 num_pds, *cdb_ptr, i;
3866 u8 cdb0 = scmd->cmnd[0];
3867 u64 v_llba;
3868
3869 /*
3870 * Try Direct I/O to RAID memeber disks
3871 */
3872 if (cdb0 == READ_16 || cdb0 == READ_10 ||
3873 cdb0 == WRITE_16 || cdb0 == WRITE_10) {
3874 cdb_ptr = mpi_request->CDB.CDB32;
3875
3876 if ((cdb0 < READ_16) || !(cdb_ptr[2] | cdb_ptr[3] | cdb_ptr[4]
3877 | cdb_ptr[5])) {
3878 io_size = scsi_bufflen(scmd) >>
3879 raid_device->block_exponent;
3880 i = (cdb0 < READ_16) ? 2 : 6;
3881 /* get virtual lba */
3882 v_lba = be32_to_cpu(*(__be32 *)(&cdb_ptr[i]));
3883
3884 if (((u64)v_lba + (u64)io_size - 1) <=
3885 (u32)raid_device->max_lba) {
3886 stripe_sz = raid_device->stripe_sz;
3887 stripe_exp = raid_device->stripe_exponent;
3888 stripe_off = v_lba & (stripe_sz - 1);
3889
3890 /* Check whether IO falls within a stripe */
3891 if ((stripe_off + io_size) <= stripe_sz) {
3892 num_pds = raid_device->num_pds;
3893 p_lba = v_lba >> stripe_exp;
3894 stripe_unit = p_lba / num_pds;
3895 column = p_lba % num_pds;
3896 p_lba = (stripe_unit << stripe_exp) +
3897 stripe_off;
3898 mpi_request->DevHandle =
3899 cpu_to_le16(raid_device->
3900 pd_handle[column]);
3901 (*(__be32 *)(&cdb_ptr[i])) =
3902 cpu_to_be32(p_lba);
3903 /*
3904 * WD: To indicate this I/O is directI/O
3905 */
3906 _scsih_scsi_direct_io_set(ioc, smid, 1);
3907 }
3908 }
3909 } else {
3910 io_size = scsi_bufflen(scmd) >>
3911 raid_device->block_exponent;
3912 /* get virtual lba */
3913 v_llba = be64_to_cpu(*(__be64 *)(&cdb_ptr[2]));
3914
3915 if ((v_llba + (u64)io_size - 1) <=
3916 raid_device->max_lba) {
3917 stripe_sz = raid_device->stripe_sz;
3918 stripe_exp = raid_device->stripe_exponent;
3919 stripe_off = (u32) (v_llba & (stripe_sz - 1));
3920
3921 /* Check whether IO falls within a stripe */
3922 if ((stripe_off + io_size) <= stripe_sz) {
3923 num_pds = raid_device->num_pds;
3924 p_lba = (u32)(v_llba >> stripe_exp);
3925 stripe_unit = p_lba / num_pds;
3926 column = p_lba % num_pds;
3927 p_lba = (stripe_unit << stripe_exp) +
3928 stripe_off;
3929 mpi_request->DevHandle =
3930 cpu_to_le16(raid_device->
3931 pd_handle[column]);
3932 (*(__be64 *)(&cdb_ptr[2])) =
3933 cpu_to_be64((u64)p_lba);
3934 /*
3935 * WD: To indicate this I/O is directI/O
3936 */
3937 _scsih_scsi_direct_io_set(ioc, smid, 1);
3938 }
3939 }
3940 }
3941 }
3942}
3943
3944/**
3945 * _scsih_qcmd - main scsi request entry point
3946 * @scmd: pointer to scsi command object
3947 * @done: function pointer to be invoked on completion
3948 *
3949 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3950 *
3951 * Returns 0 on success. If there's a failure, return either:
3952 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3953 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3954 */
3955static int
3956_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
3957{
3958 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
3959 struct MPT2SAS_DEVICE *sas_device_priv_data;
3960 struct MPT2SAS_TARGET *sas_target_priv_data;
3961 struct _raid_device *raid_device;
3962 Mpi2SCSIIORequest_t *mpi_request;
3963 u32 mpi_control;
3964 u16 smid;
3965
3966 scmd->scsi_done = done;
3967 sas_device_priv_data = scmd->device->hostdata;
3968 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
3969 scmd->result = DID_NO_CONNECT << 16;
3970 scmd->scsi_done(scmd);
3971 return 0;
3972 }
3973
3974 if (ioc->pci_error_recovery || ioc->remove_host) {
3975 scmd->result = DID_NO_CONNECT << 16;
3976 scmd->scsi_done(scmd);
3977 return 0;
3978 }
3979
3980 sas_target_priv_data = sas_device_priv_data->sas_target;
3981 /* invalid device handle */
3982 if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
3983 scmd->result = DID_NO_CONNECT << 16;
3984 scmd->scsi_done(scmd);
3985 return 0;
3986 }
3987
3988 /* host recovery or link resets sent via IOCTLs */
3989 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
3990 return SCSI_MLQUEUE_HOST_BUSY;
3991 /* device busy with task management */
3992 else if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
3993 return SCSI_MLQUEUE_DEVICE_BUSY;
3994 /* device has been deleted */
3995 else if (sas_target_priv_data->deleted) {
3996 scmd->result = DID_NO_CONNECT << 16;
3997 scmd->scsi_done(scmd);
3998 return 0;
3999 }
4000
4001 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
4002 mpi_control = MPI2_SCSIIO_CONTROL_READ;
4003 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
4004 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
4005 else
4006 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
4007
4008 /* set tags */
4009 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
4010 if (scmd->device->tagged_supported) {
4011 if (scmd->device->ordered_tags)
4012 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
4013 else
4014 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
4015 } else
4016 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
4017 } else
4018 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
4019 /* Make sure Device is not raid volume.
4020 * We do not expose raid functionality to upper layer for warpdrive.
4021 */
4022 if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
4023 sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
4024 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
4025
4026 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
4027 if (!smid) {
4028 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
4029 ioc->name, __func__);
4030 goto out;
4031 }
4032 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
4033 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
4034 _scsih_setup_eedp(scmd, mpi_request);
4035 if (scmd->cmd_len == 32)
4036 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
4037 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
4038 if (sas_device_priv_data->sas_target->flags &
4039 MPT_TARGET_FLAGS_RAID_COMPONENT)
4040 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
4041 else
4042 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
4043 mpi_request->DevHandle =
4044 cpu_to_le16(sas_device_priv_data->sas_target->handle);
4045 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
4046 mpi_request->Control = cpu_to_le32(mpi_control);
4047 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
4048 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
4049 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
4050 mpi_request->SenseBufferLowAddress =
4051 mpt2sas_base_get_sense_buffer_dma(ioc, smid);
4052 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
4053 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
4054 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
4055 mpi_request->VF_ID = 0; /* TODO */
4056 mpi_request->VP_ID = 0;
4057 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
4058 mpi_request->LUN);
4059 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
4060
4061 if (!mpi_request->DataLength) {
4062 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
4063 } else {
4064 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
4065 mpt2sas_base_free_smid(ioc, smid);
4066 goto out;
4067 }
4068 }
4069
4070 raid_device = sas_target_priv_data->raid_device;
4071 if (raid_device && raid_device->direct_io_enabled)
4072 _scsih_setup_direct_io(ioc, scmd, raid_device, mpi_request,
4073 smid);
4074
4075 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST))
4076 mpt2sas_base_put_smid_scsi_io(ioc, smid,
4077 le16_to_cpu(mpi_request->DevHandle));
4078 else
4079 mpt2sas_base_put_smid_default(ioc, smid);
4080 return 0;
4081
4082 out:
4083 return SCSI_MLQUEUE_HOST_BUSY;
4084}
4085
4086static DEF_SCSI_QCMD(_scsih_qcmd)
4087
4088/**
4089 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
4090 * @sense_buffer: sense data returned by target
4091 * @data: normalized skey/asc/ascq
4092 *
4093 * Return nothing.
4094 */
4095static void
4096_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
4097{
4098 if ((sense_buffer[0] & 0x7F) >= 0x72) {
4099 /* descriptor format */
4100 data->skey = sense_buffer[1] & 0x0F;
4101 data->asc = sense_buffer[2];
4102 data->ascq = sense_buffer[3];
4103 } else {
4104 /* fixed format */
4105 data->skey = sense_buffer[2] & 0x0F;
4106 data->asc = sense_buffer[12];
4107 data->ascq = sense_buffer[13];
4108 }
4109}
4110
4111#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4112/**
4113 * _scsih_scsi_ioc_info - translated non-successful SCSI_IO request
4114 * @ioc: per adapter object
4115 * @scmd: pointer to scsi command object
4116 * @mpi_reply: reply mf payload returned from firmware
4117 *
4118 * scsi_status - SCSI Status code returned from target device
4119 * scsi_state - state info associated with SCSI_IO determined by ioc
4120 * ioc_status - ioc supplied status info
4121 *
4122 * Return nothing.
4123 */
4124static void
4125_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
4126 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
4127{
4128 u32 response_info;
4129 u8 *response_bytes;
4130 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
4131 MPI2_IOCSTATUS_MASK;
4132 u8 scsi_state = mpi_reply->SCSIState;
4133 u8 scsi_status = mpi_reply->SCSIStatus;
4134 char *desc_ioc_state = NULL;
4135 char *desc_scsi_status = NULL;
4136 char *desc_scsi_state = ioc->tmp_string;
4137 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4138 struct _sas_device *sas_device = NULL;
4139 unsigned long flags;
4140 struct scsi_target *starget = scmd->device->sdev_target;
4141 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
4142 char *device_str = NULL;
4143
4144 if (!priv_target)
4145 return;
4146
4147 if (ioc->hide_ir_msg)
4148 device_str = "WarpDrive";
4149 else
4150 device_str = "volume";
4151
4152 if (log_info == 0x31170000)
4153 return;
4154
4155 switch (ioc_status) {
4156 case MPI2_IOCSTATUS_SUCCESS:
4157 desc_ioc_state = "success";
4158 break;
4159 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4160 desc_ioc_state = "invalid function";
4161 break;
4162 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4163 desc_ioc_state = "scsi recovered error";
4164 break;
4165 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
4166 desc_ioc_state = "scsi invalid dev handle";
4167 break;
4168 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4169 desc_ioc_state = "scsi device not there";
4170 break;
4171 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4172 desc_ioc_state = "scsi data overrun";
4173 break;
4174 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4175 desc_ioc_state = "scsi data underrun";
4176 break;
4177 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4178 desc_ioc_state = "scsi io data error";
4179 break;
4180 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4181 desc_ioc_state = "scsi protocol error";
4182 break;
4183 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4184 desc_ioc_state = "scsi task terminated";
4185 break;
4186 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4187 desc_ioc_state = "scsi residual mismatch";
4188 break;
4189 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4190 desc_ioc_state = "scsi task mgmt failed";
4191 break;
4192 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4193 desc_ioc_state = "scsi ioc terminated";
4194 break;
4195 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4196 desc_ioc_state = "scsi ext terminated";
4197 break;
4198 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4199 desc_ioc_state = "eedp guard error";
4200 break;
4201 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4202 desc_ioc_state = "eedp ref tag error";
4203 break;
4204 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4205 desc_ioc_state = "eedp app tag error";
4206 break;
4207 default:
4208 desc_ioc_state = "unknown";
4209 break;
4210 }
4211
4212 switch (scsi_status) {
4213 case MPI2_SCSI_STATUS_GOOD:
4214 desc_scsi_status = "good";
4215 break;
4216 case MPI2_SCSI_STATUS_CHECK_CONDITION:
4217 desc_scsi_status = "check condition";
4218 break;
4219 case MPI2_SCSI_STATUS_CONDITION_MET:
4220 desc_scsi_status = "condition met";
4221 break;
4222 case MPI2_SCSI_STATUS_BUSY:
4223 desc_scsi_status = "busy";
4224 break;
4225 case MPI2_SCSI_STATUS_INTERMEDIATE:
4226 desc_scsi_status = "intermediate";
4227 break;
4228 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
4229 desc_scsi_status = "intermediate condmet";
4230 break;
4231 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
4232 desc_scsi_status = "reservation conflict";
4233 break;
4234 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
4235 desc_scsi_status = "command terminated";
4236 break;
4237 case MPI2_SCSI_STATUS_TASK_SET_FULL:
4238 desc_scsi_status = "task set full";
4239 break;
4240 case MPI2_SCSI_STATUS_ACA_ACTIVE:
4241 desc_scsi_status = "aca active";
4242 break;
4243 case MPI2_SCSI_STATUS_TASK_ABORTED:
4244 desc_scsi_status = "task aborted";
4245 break;
4246 default:
4247 desc_scsi_status = "unknown";
4248 break;
4249 }
4250
4251 desc_scsi_state[0] = '\0';
4252 if (!scsi_state)
4253 desc_scsi_state = " ";
4254 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4255 strcat(desc_scsi_state, "response info ");
4256 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4257 strcat(desc_scsi_state, "state terminated ");
4258 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
4259 strcat(desc_scsi_state, "no status ");
4260 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
4261 strcat(desc_scsi_state, "autosense failed ");
4262 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
4263 strcat(desc_scsi_state, "autosense valid ");
4264
4265 scsi_print_command(scmd);
4266
4267 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
4268 printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
4269 device_str, (unsigned long long)priv_target->sas_address);
4270 } else {
4271 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4272 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4273 priv_target->sas_address);
4274 if (sas_device) {
4275 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
4276 "phy(%d)\n", ioc->name, sas_device->sas_address,
4277 sas_device->phy);
4278 printk(MPT2SAS_WARN_FMT
4279 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
4280 ioc->name, sas_device->enclosure_logical_id,
4281 sas_device->slot);
4282 }
4283 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4284 }
4285
4286 printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
4287 "smid(%d)\n", ioc->name, le16_to_cpu(mpi_reply->DevHandle),
4288 desc_ioc_state, ioc_status, smid);
4289 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
4290 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
4291 scsi_get_resid(scmd));
4292 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
4293 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
4294 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
4295 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
4296 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
4297 scsi_status, desc_scsi_state, scsi_state);
4298
4299 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4300 struct sense_info data;
4301 _scsih_normalize_sense(scmd->sense_buffer, &data);
4302 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
4303 "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
4304 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
4305 }
4306
4307 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
4308 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
4309 response_bytes = (u8 *)&response_info;
4310 _scsih_response_code(ioc, response_bytes[0]);
4311 }
4312}
4313#endif
4314
4315/**
4316 * _scsih_turn_on_fault_led - illuminate Fault LED
4317 * @ioc: per adapter object
4318 * @handle: device handle
4319 * Context: process
4320 *
4321 * Return nothing.
4322 */
4323static void
4324_scsih_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4325{
4326 Mpi2SepReply_t mpi_reply;
4327 Mpi2SepRequest_t mpi_request;
4328
4329 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
4330 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
4331 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
4332 mpi_request.SlotStatus =
4333 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
4334 mpi_request.DevHandle = cpu_to_le16(handle);
4335 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
4336 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
4337 &mpi_request)) != 0) {
4338 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
4339 __FILE__, __LINE__, __func__);
4340 return;
4341 }
4342
4343 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
4344 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "enclosure_processor: "
4345 "ioc_status (0x%04x), loginfo(0x%08x)\n", ioc->name,
4346 le16_to_cpu(mpi_reply.IOCStatus),
4347 le32_to_cpu(mpi_reply.IOCLogInfo)));
4348 return;
4349 }
4350}
4351
4352/**
4353 * _scsih_send_event_to_turn_on_fault_led - fire delayed event
4354 * @ioc: per adapter object
4355 * @handle: device handle
4356 * Context: interrupt.
4357 *
4358 * Return nothing.
4359 */
4360static void
4361_scsih_send_event_to_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4362{
4363 struct fw_event_work *fw_event;
4364
4365 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
4366 if (!fw_event)
4367 return;
4368 fw_event->event = MPT2SAS_TURN_ON_FAULT_LED;
4369 fw_event->device_handle = handle;
4370 fw_event->ioc = ioc;
4371 _scsih_fw_event_add(ioc, fw_event);
4372}
4373
4374/**
4375 * _scsih_smart_predicted_fault - process smart errors
4376 * @ioc: per adapter object
4377 * @handle: device handle
4378 * Context: interrupt.
4379 *
4380 * Return nothing.
4381 */
4382static void
4383_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4384{
4385 struct scsi_target *starget;
4386 struct MPT2SAS_TARGET *sas_target_priv_data;
4387 Mpi2EventNotificationReply_t *event_reply;
4388 Mpi2EventDataSasDeviceStatusChange_t *event_data;
4389 struct _sas_device *sas_device;
4390 ssize_t sz;
4391 unsigned long flags;
4392
4393 /* only handle non-raid devices */
4394 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4395 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4396 if (!sas_device) {
4397 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4398 return;
4399 }
4400 starget = sas_device->starget;
4401 sas_target_priv_data = starget->hostdata;
4402
4403 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
4404 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
4405 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4406 return;
4407 }
4408 starget_printk(KERN_WARNING, starget, "predicted fault\n");
4409 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4410
4411 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
4412 _scsih_send_event_to_turn_on_fault_led(ioc, handle);
4413
4414 /* insert into event log */
4415 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
4416 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
4417 event_reply = kzalloc(sz, GFP_ATOMIC);
4418 if (!event_reply) {
4419 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4420 ioc->name, __FILE__, __LINE__, __func__);
4421 return;
4422 }
4423
4424 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
4425 event_reply->Event =
4426 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4427 event_reply->MsgLength = sz/4;
4428 event_reply->EventDataLength =
4429 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
4430 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
4431 event_reply->EventData;
4432 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
4433 event_data->ASC = 0x5D;
4434 event_data->DevHandle = cpu_to_le16(handle);
4435 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
4436 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
4437 kfree(event_reply);
4438}
4439
4440/**
4441 * _scsih_io_done - scsi request callback
4442 * @ioc: per adapter object
4443 * @smid: system request message index
4444 * @msix_index: MSIX table index supplied by the OS
4445 * @reply: reply message frame(lower 32bit addr)
4446 *
4447 * Callback handler when using _scsih_qcmd.
4448 *
4449 * Return 1 meaning mf should be freed from _base_interrupt
4450 * 0 means the mf is freed from this function.
4451 */
4452static u8
4453_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4454{
4455 Mpi2SCSIIORequest_t *mpi_request;
4456 Mpi2SCSIIOReply_t *mpi_reply;
4457 struct scsi_cmnd *scmd;
4458 u16 ioc_status;
4459 u32 xfer_cnt;
4460 u8 scsi_state;
4461 u8 scsi_status;
4462 u32 log_info;
4463 struct MPT2SAS_DEVICE *sas_device_priv_data;
4464 u32 response_code = 0;
4465 unsigned long flags;
4466
4467 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
4468 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
4469 if (scmd == NULL)
4470 return 1;
4471
4472 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
4473
4474 if (mpi_reply == NULL) {
4475 scmd->result = DID_OK << 16;
4476 goto out;
4477 }
4478
4479 sas_device_priv_data = scmd->device->hostdata;
4480 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
4481 sas_device_priv_data->sas_target->deleted) {
4482 scmd->result = DID_NO_CONNECT << 16;
4483 goto out;
4484 }
4485 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
4486 /*
4487 * WARPDRIVE: If direct_io is set then it is directIO,
4488 * the failed direct I/O should be redirected to volume
4489 */
4490 if (_scsih_scsi_direct_io_get(ioc, smid) &&
4491 ((ioc_status & MPI2_IOCSTATUS_MASK)
4492 != MPI2_IOCSTATUS_SCSI_TASK_TERMINATED)) {
4493 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
4494 ioc->scsi_lookup[smid - 1].scmd = scmd;
4495 _scsih_scsi_direct_io_set(ioc, smid, 0);
4496 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
4497 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
4498 mpi_request->DevHandle =
4499 cpu_to_le16(sas_device_priv_data->sas_target->handle);
4500 mpt2sas_base_put_smid_scsi_io(ioc, smid,
4501 sas_device_priv_data->sas_target->handle);
4502 return 0;
4503 }
4504
4505
4506 /* turning off TLR */
4507 scsi_state = mpi_reply->SCSIState;
4508 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4509 response_code =
4510 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
4511 if (!sas_device_priv_data->tlr_snoop_check) {
4512 sas_device_priv_data->tlr_snoop_check++;
4513 /* Make sure Device is not raid volume.
4514 * We do not expose raid functionality to upper layer for warpdrive.
4515 */
4516 if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
4517 sas_is_tlr_enabled(scmd->device) &&
4518 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
4519 sas_disable_tlr(scmd->device);
4520 sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
4521 }
4522 }
4523
4524 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
4525 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
4526 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
4527 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4528 else
4529 log_info = 0;
4530 ioc_status &= MPI2_IOCSTATUS_MASK;
4531 scsi_status = mpi_reply->SCSIStatus;
4532
4533 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
4534 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
4535 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
4536 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
4537 ioc_status = MPI2_IOCSTATUS_SUCCESS;
4538 }
4539
4540 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4541 struct sense_info data;
4542 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
4543 smid);
4544 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
4545 le32_to_cpu(mpi_reply->SenseCount));
4546 memcpy(scmd->sense_buffer, sense_data, sz);
4547 _scsih_normalize_sense(scmd->sense_buffer, &data);
4548 /* failure prediction threshold exceeded */
4549 if (data.asc == 0x5D)
4550 _scsih_smart_predicted_fault(ioc,
4551 le16_to_cpu(mpi_reply->DevHandle));
4552 }
4553
4554 switch (ioc_status) {
4555 case MPI2_IOCSTATUS_BUSY:
4556 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
4557 scmd->result = SAM_STAT_BUSY;
4558 break;
4559
4560 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4561 scmd->result = DID_NO_CONNECT << 16;
4562 break;
4563
4564 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4565 if (sas_device_priv_data->block) {
4566 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
4567 goto out;
4568 }
4569 scmd->result = DID_SOFT_ERROR << 16;
4570 break;
4571 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4572 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4573 scmd->result = DID_RESET << 16;
4574 break;
4575
4576 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4577 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
4578 scmd->result = DID_SOFT_ERROR << 16;
4579 else
4580 scmd->result = (DID_OK << 16) | scsi_status;
4581 break;
4582
4583 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4584 scmd->result = (DID_OK << 16) | scsi_status;
4585
4586 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
4587 break;
4588
4589 if (xfer_cnt < scmd->underflow) {
4590 if (scsi_status == SAM_STAT_BUSY)
4591 scmd->result = SAM_STAT_BUSY;
4592 else
4593 scmd->result = DID_SOFT_ERROR << 16;
4594 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4595 MPI2_SCSI_STATE_NO_SCSI_STATUS))
4596 scmd->result = DID_SOFT_ERROR << 16;
4597 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4598 scmd->result = DID_RESET << 16;
4599 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
4600 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
4601 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
4602 scmd->result = (DRIVER_SENSE << 24) |
4603 SAM_STAT_CHECK_CONDITION;
4604 scmd->sense_buffer[0] = 0x70;
4605 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
4606 scmd->sense_buffer[12] = 0x20;
4607 scmd->sense_buffer[13] = 0;
4608 }
4609 break;
4610
4611 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4612 scsi_set_resid(scmd, 0);
4613 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4614 case MPI2_IOCSTATUS_SUCCESS:
4615 scmd->result = (DID_OK << 16) | scsi_status;
4616 if (response_code ==
4617 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
4618 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4619 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
4620 scmd->result = DID_SOFT_ERROR << 16;
4621 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4622 scmd->result = DID_RESET << 16;
4623 break;
4624
4625 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4626 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4627 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4628 _scsih_eedp_error_handling(scmd, ioc_status);
4629 break;
4630 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4631 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4632 case MPI2_IOCSTATUS_INVALID_SGL:
4633 case MPI2_IOCSTATUS_INTERNAL_ERROR:
4634 case MPI2_IOCSTATUS_INVALID_FIELD:
4635 case MPI2_IOCSTATUS_INVALID_STATE:
4636 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4637 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4638 default:
4639 scmd->result = DID_SOFT_ERROR << 16;
4640 break;
4641
4642 }
4643
4644#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4645 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
4646 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
4647#endif
4648
4649 out:
4650 scsi_dma_unmap(scmd);
4651 scmd->scsi_done(scmd);
4652 return 1;
4653}
4654
4655/**
4656 * _scsih_sas_host_refresh - refreshing sas host object contents
4657 * @ioc: per adapter object
4658 * Context: user
4659 *
4660 * During port enable, fw will send topology events for every device. Its
4661 * possible that the handles may change from the previous setting, so this
4662 * code keeping handles updating if changed.
4663 *
4664 * Return nothing.
4665 */
4666static void
4667_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
4668{
4669 u16 sz;
4670 u16 ioc_status;
4671 int i;
4672 Mpi2ConfigReply_t mpi_reply;
4673 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4674 u16 attached_handle;
4675 u8 link_rate;
4676
4677 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
4678 "updating handles for sas_host(0x%016llx)\n",
4679 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
4680
4681 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
4682 * sizeof(Mpi2SasIOUnit0PhyData_t));
4683 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4684 if (!sas_iounit_pg0) {
4685 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4686 ioc->name, __FILE__, __LINE__, __func__);
4687 return;
4688 }
4689
4690 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4691 sas_iounit_pg0, sz)) != 0)
4692 goto out;
4693 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4694 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4695 goto out;
4696 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4697 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
4698 if (i == 0)
4699 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4700 PhyData[0].ControllerDevHandle);
4701 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4702 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
4703 AttachedDevHandle);
4704 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4705 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
4706 mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
4707 attached_handle, i, link_rate);
4708 }
4709 out:
4710 kfree(sas_iounit_pg0);
4711}
4712
4713/**
4714 * _scsih_sas_host_add - create sas host object
4715 * @ioc: per adapter object
4716 *
4717 * Creating host side data object, stored in ioc->sas_hba
4718 *
4719 * Return nothing.
4720 */
4721static void
4722_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
4723{
4724 int i;
4725 Mpi2ConfigReply_t mpi_reply;
4726 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4727 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4728 Mpi2SasPhyPage0_t phy_pg0;
4729 Mpi2SasDevicePage0_t sas_device_pg0;
4730 Mpi2SasEnclosurePage0_t enclosure_pg0;
4731 u16 ioc_status;
4732 u16 sz;
4733 u16 device_missing_delay;
4734
4735 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4736 if (!ioc->sas_hba.num_phys) {
4737 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4738 ioc->name, __FILE__, __LINE__, __func__);
4739 return;
4740 }
4741
4742 /* sas_iounit page 0 */
4743 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4744 sizeof(Mpi2SasIOUnit0PhyData_t));
4745 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4746 if (!sas_iounit_pg0) {
4747 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4748 ioc->name, __FILE__, __LINE__, __func__);
4749 return;
4750 }
4751 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4752 sas_iounit_pg0, sz))) {
4753 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4754 ioc->name, __FILE__, __LINE__, __func__);
4755 goto out;
4756 }
4757 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4758 MPI2_IOCSTATUS_MASK;
4759 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4760 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4761 ioc->name, __FILE__, __LINE__, __func__);
4762 goto out;
4763 }
4764
4765 /* sas_iounit page 1 */
4766 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4767 sizeof(Mpi2SasIOUnit1PhyData_t));
4768 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4769 if (!sas_iounit_pg1) {
4770 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4771 ioc->name, __FILE__, __LINE__, __func__);
4772 goto out;
4773 }
4774 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4775 sas_iounit_pg1, sz))) {
4776 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4777 ioc->name, __FILE__, __LINE__, __func__);
4778 goto out;
4779 }
4780 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4781 MPI2_IOCSTATUS_MASK;
4782 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4783 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4784 ioc->name, __FILE__, __LINE__, __func__);
4785 goto out;
4786 }
4787
4788 ioc->io_missing_delay =
4789 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
4790 device_missing_delay =
4791 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
4792 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4793 ioc->device_missing_delay = (device_missing_delay &
4794 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4795 else
4796 ioc->device_missing_delay = device_missing_delay &
4797 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4798
4799 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4800 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4801 sizeof(struct _sas_phy), GFP_KERNEL);
4802 if (!ioc->sas_hba.phy) {
4803 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4804 ioc->name, __FILE__, __LINE__, __func__);
4805 goto out;
4806 }
4807 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4808 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4809 i))) {
4810 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4811 ioc->name, __FILE__, __LINE__, __func__);
4812 goto out;
4813 }
4814 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4815 MPI2_IOCSTATUS_MASK;
4816 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4817 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4818 ioc->name, __FILE__, __LINE__, __func__);
4819 goto out;
4820 }
4821
4822 if (i == 0)
4823 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4824 PhyData[0].ControllerDevHandle);
4825 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4826 ioc->sas_hba.phy[i].phy_id = i;
4827 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4828 phy_pg0, ioc->sas_hba.parent_dev);
4829 }
4830 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4831 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
4832 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4833 ioc->name, __FILE__, __LINE__, __func__);
4834 goto out;
4835 }
4836 ioc->sas_hba.enclosure_handle =
4837 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4838 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4839 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
4840 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
4841 (unsigned long long) ioc->sas_hba.sas_address,
4842 ioc->sas_hba.num_phys) ;
4843
4844 if (ioc->sas_hba.enclosure_handle) {
4845 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4846 &enclosure_pg0,
4847 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4848 ioc->sas_hba.enclosure_handle))) {
4849 ioc->sas_hba.enclosure_logical_id =
4850 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4851 }
4852 }
4853
4854 out:
4855 kfree(sas_iounit_pg1);
4856 kfree(sas_iounit_pg0);
4857}
4858
4859/**
4860 * _scsih_expander_add - creating expander object
4861 * @ioc: per adapter object
4862 * @handle: expander handle
4863 *
4864 * Creating expander object, stored in ioc->sas_expander_list.
4865 *
4866 * Return 0 for success, else error.
4867 */
4868static int
4869_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4870{
4871 struct _sas_node *sas_expander;
4872 Mpi2ConfigReply_t mpi_reply;
4873 Mpi2ExpanderPage0_t expander_pg0;
4874 Mpi2ExpanderPage1_t expander_pg1;
4875 Mpi2SasEnclosurePage0_t enclosure_pg0;
4876 u32 ioc_status;
4877 u16 parent_handle;
4878 u64 sas_address, sas_address_parent = 0;
4879 int i;
4880 unsigned long flags;
4881 struct _sas_port *mpt2sas_port = NULL;
4882 int rc = 0;
4883
4884 if (!handle)
4885 return -1;
4886
4887 if (ioc->shost_recovery || ioc->pci_error_recovery)
4888 return -1;
4889
4890 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4891 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4892 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4893 ioc->name, __FILE__, __LINE__, __func__);
4894 return -1;
4895 }
4896
4897 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4898 MPI2_IOCSTATUS_MASK;
4899 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4900 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4901 ioc->name, __FILE__, __LINE__, __func__);
4902 return -1;
4903 }
4904
4905 /* handle out of order topology events */
4906 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
4907 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4908 != 0) {
4909 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4910 ioc->name, __FILE__, __LINE__, __func__);
4911 return -1;
4912 }
4913 if (sas_address_parent != ioc->sas_hba.sas_address) {
4914 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4915 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4916 sas_address_parent);
4917 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4918 if (!sas_expander) {
4919 rc = _scsih_expander_add(ioc, parent_handle);
4920 if (rc != 0)
4921 return rc;
4922 }
4923 }
4924
4925 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4926 sas_address = le64_to_cpu(expander_pg0.SASAddress);
4927 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4928 sas_address);
4929 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4930
4931 if (sas_expander)
4932 return 0;
4933
4934 sas_expander = kzalloc(sizeof(struct _sas_node),
4935 GFP_KERNEL);
4936 if (!sas_expander) {
4937 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4938 ioc->name, __FILE__, __LINE__, __func__);
4939 return -1;
4940 }
4941
4942 sas_expander->handle = handle;
4943 sas_expander->num_phys = expander_pg0.NumPhys;
4944 sas_expander->sas_address_parent = sas_address_parent;
4945 sas_expander->sas_address = sas_address;
4946
4947 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
4948 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
4949 handle, parent_handle, (unsigned long long)
4950 sas_expander->sas_address, sas_expander->num_phys);
4951
4952 if (!sas_expander->num_phys)
4953 goto out_fail;
4954 sas_expander->phy = kcalloc(sas_expander->num_phys,
4955 sizeof(struct _sas_phy), GFP_KERNEL);
4956 if (!sas_expander->phy) {
4957 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4958 ioc->name, __FILE__, __LINE__, __func__);
4959 rc = -1;
4960 goto out_fail;
4961 }
4962
4963 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4964 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
4965 sas_address_parent);
4966 if (!mpt2sas_port) {
4967 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4968 ioc->name, __FILE__, __LINE__, __func__);
4969 rc = -1;
4970 goto out_fail;
4971 }
4972 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
4973
4974 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4975 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
4976 &expander_pg1, i, handle))) {
4977 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4978 ioc->name, __FILE__, __LINE__, __func__);
4979 rc = -1;
4980 goto out_fail;
4981 }
4982 sas_expander->phy[i].handle = handle;
4983 sas_expander->phy[i].phy_id = i;
4984
4985 if ((mpt2sas_transport_add_expander_phy(ioc,
4986 &sas_expander->phy[i], expander_pg1,
4987 sas_expander->parent_dev))) {
4988 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4989 ioc->name, __FILE__, __LINE__, __func__);
4990 rc = -1;
4991 goto out_fail;
4992 }
4993 }
4994
4995 if (sas_expander->enclosure_handle) {
4996 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4997 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4998 sas_expander->enclosure_handle))) {
4999 sas_expander->enclosure_logical_id =
5000 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
5001 }
5002 }
5003
5004 _scsih_expander_node_add(ioc, sas_expander);
5005 return 0;
5006
5007 out_fail:
5008
5009 if (mpt2sas_port)
5010 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
5011 sas_address_parent);
5012 kfree(sas_expander);
5013 return rc;
5014}
5015
5016/**
5017 * _scsih_done - scsih callback handler.
5018 * @ioc: per adapter object
5019 * @smid: system request message index
5020 * @msix_index: MSIX table index supplied by the OS
5021 * @reply: reply message frame(lower 32bit addr)
5022 *
5023 * Callback handler when sending internal generated message frames.
5024 * The callback index passed is `ioc->scsih_cb_idx`
5025 *
5026 * Return 1 meaning mf should be freed from _base_interrupt
5027 * 0 means the mf is freed from this function.
5028 */
5029static u8
5030_scsih_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
5031{
5032 MPI2DefaultReply_t *mpi_reply;
5033
5034 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5035 if (ioc->scsih_cmds.status == MPT2_CMD_NOT_USED)
5036 return 1;
5037 if (ioc->scsih_cmds.smid != smid)
5038 return 1;
5039 ioc->scsih_cmds.status |= MPT2_CMD_COMPLETE;
5040 if (mpi_reply) {
5041 memcpy(ioc->scsih_cmds.reply, mpi_reply,
5042 mpi_reply->MsgLength*4);
5043 ioc->scsih_cmds.status |= MPT2_CMD_REPLY_VALID;
5044 }
5045 ioc->scsih_cmds.status &= ~MPT2_CMD_PENDING;
5046 complete(&ioc->scsih_cmds.done);
5047 return 1;
5048}
5049
5050/**
5051 * mpt2sas_expander_remove - removing expander object
5052 * @ioc: per adapter object
5053 * @sas_address: expander sas_address
5054 *
5055 * Return nothing.
5056 */
5057void
5058mpt2sas_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
5059{
5060 struct _sas_node *sas_expander;
5061 unsigned long flags;
5062
5063 if (ioc->shost_recovery)
5064 return;
5065
5066 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5067 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
5068 sas_address);
5069 if (sas_expander)
5070 list_del(&sas_expander->list);
5071 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5072 if (sas_expander)
5073 _scsih_expander_node_remove(ioc, sas_expander);
5074}
5075
5076/**
5077 * _scsih_check_access_status - check access flags
5078 * @ioc: per adapter object
5079 * @sas_address: sas address
5080 * @handle: sas device handle
5081 * @access_flags: errors returned during discovery of the device
5082 *
5083 * Return 0 for success, else failure
5084 */
5085static u8
5086_scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5087 u16 handle, u8 access_status)
5088{
5089 u8 rc = 1;
5090 char *desc = NULL;
5091
5092 switch (access_status) {
5093 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
5094 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
5095 rc = 0;
5096 break;
5097 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
5098 desc = "sata capability failed";
5099 break;
5100 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
5101 desc = "sata affiliation conflict";
5102 break;
5103 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
5104 desc = "route not addressable";
5105 break;
5106 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
5107 desc = "smp error not addressable";
5108 break;
5109 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
5110 desc = "device blocked";
5111 break;
5112 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
5113 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
5114 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
5115 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
5116 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
5117 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
5118 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
5119 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
5120 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
5121 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
5122 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
5123 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
5124 desc = "sata initialization failed";
5125 break;
5126 default:
5127 desc = "unknown";
5128 break;
5129 }
5130
5131 if (!rc)
5132 return 0;
5133
5134 printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), "
5135 "handle(0x%04x)\n", ioc->name, desc,
5136 (unsigned long long)sas_address, handle);
5137 return rc;
5138}
5139
5140static void
5141_scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5142{
5143 Mpi2ConfigReply_t mpi_reply;
5144 Mpi2SasDevicePage0_t sas_device_pg0;
5145 struct _sas_device *sas_device;
5146 u32 ioc_status;
5147 unsigned long flags;
5148 u64 sas_address;
5149 struct scsi_target *starget;
5150 struct MPT2SAS_TARGET *sas_target_priv_data;
5151 u32 device_info;
5152
5153
5154 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5155 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
5156 return;
5157
5158 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
5159 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
5160 return;
5161
5162 /* check if this is end device */
5163 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5164 if (!(_scsih_is_end_device(device_info)))
5165 return;
5166
5167 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5168 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5169 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5170 sas_address);
5171
5172 if (!sas_device) {
5173 printk(MPT2SAS_ERR_FMT "device is not present "
5174 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
5175 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5176 return;
5177 }
5178
5179 if (unlikely(sas_device->handle != handle)) {
5180 starget = sas_device->starget;
5181 sas_target_priv_data = starget->hostdata;
5182 starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)"
5183 " to (0x%04x)!!!\n", sas_device->handle, handle);
5184 sas_target_priv_data->handle = handle;
5185 sas_device->handle = handle;
5186 }
5187
5188 /* check if device is present */
5189 if (!(le16_to_cpu(sas_device_pg0.Flags) &
5190 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
5191 printk(MPT2SAS_ERR_FMT "device is not present "
5192 "handle(0x%04x), flags!!!\n", ioc->name, handle);
5193 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5194 return;
5195 }
5196
5197 /* check if there were any issues with discovery */
5198 if (_scsih_check_access_status(ioc, sas_address, handle,
5199 sas_device_pg0.AccessStatus)) {
5200 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5201 return;
5202 }
5203 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5204 _scsih_ublock_io_device(ioc, sas_address);
5205
5206}
5207
5208/**
5209 * _scsih_add_device - creating sas device object
5210 * @ioc: per adapter object
5211 * @handle: sas device handle
5212 * @phy_num: phy number end device attached to
5213 * @is_pd: is this hidden raid component
5214 *
5215 * Creating end device object, stored in ioc->sas_device_list.
5216 *
5217 * Returns 0 for success, non-zero for failure.
5218 */
5219static int
5220_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
5221{
5222 Mpi2ConfigReply_t mpi_reply;
5223 Mpi2SasDevicePage0_t sas_device_pg0;
5224 Mpi2SasEnclosurePage0_t enclosure_pg0;
5225 struct _sas_device *sas_device;
5226 u32 ioc_status;
5227 __le64 sas_address;
5228 u32 device_info;
5229 unsigned long flags;
5230
5231 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5232 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5233 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5234 ioc->name, __FILE__, __LINE__, __func__);
5235 return -1;
5236 }
5237
5238 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5239 MPI2_IOCSTATUS_MASK;
5240 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5241 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5242 ioc->name, __FILE__, __LINE__, __func__);
5243 return -1;
5244 }
5245
5246 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5247
5248 /* check if device is present */
5249 if (!(le16_to_cpu(sas_device_pg0.Flags) &
5250 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
5251 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5252 ioc->name, __FILE__, __LINE__, __func__);
5253 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
5254 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
5255 return -1;
5256 }
5257
5258 /* check if there were any issues with discovery */
5259 if (_scsih_check_access_status(ioc, sas_address, handle,
5260 sas_device_pg0.AccessStatus))
5261 return -1;
5262
5263 /* check if this is end device */
5264 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5265 if (!(_scsih_is_end_device(device_info))) {
5266 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5267 ioc->name, __FILE__, __LINE__, __func__);
5268 return -1;
5269 }
5270
5271
5272 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5273 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5274 sas_address);
5275 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5276
5277 if (sas_device)
5278 return 0;
5279
5280 sas_device = kzalloc(sizeof(struct _sas_device),
5281 GFP_KERNEL);
5282 if (!sas_device) {
5283 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5284 ioc->name, __FILE__, __LINE__, __func__);
5285 return -1;
5286 }
5287
5288 sas_device->handle = handle;
5289 if (_scsih_get_sas_address(ioc, le16_to_cpu
5290 (sas_device_pg0.ParentDevHandle),
5291 &sas_device->sas_address_parent) != 0)
5292 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5293 ioc->name, __FILE__, __LINE__, __func__);
5294 sas_device->enclosure_handle =
5295 le16_to_cpu(sas_device_pg0.EnclosureHandle);
5296 sas_device->slot =
5297 le16_to_cpu(sas_device_pg0.Slot);
5298 sas_device->device_info = device_info;
5299 sas_device->sas_address = sas_address;
5300 sas_device->phy = sas_device_pg0.PhyNum;
5301
5302 /* get enclosure_logical_id */
5303 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
5304 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
5305 sas_device->enclosure_handle)))
5306 sas_device->enclosure_logical_id =
5307 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
5308
5309 /* get device name */
5310 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
5311
5312 if (ioc->wait_for_discovery_to_complete)
5313 _scsih_sas_device_init_add(ioc, sas_device);
5314 else
5315 _scsih_sas_device_add(ioc, sas_device);
5316
5317 return 0;
5318}
5319
5320/**
5321 * _scsih_remove_device - removing sas device object
5322 * @ioc: per adapter object
5323 * @sas_device_delete: the sas_device object
5324 *
5325 * Return nothing.
5326 */
5327static void
5328_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
5329 struct _sas_device *sas_device)
5330{
5331 struct MPT2SAS_TARGET *sas_target_priv_data;
5332
5333 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: "
5334 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
5335 sas_device->handle, (unsigned long long)
5336 sas_device->sas_address));
5337
5338 if (sas_device->starget && sas_device->starget->hostdata) {
5339 sas_target_priv_data = sas_device->starget->hostdata;
5340 sas_target_priv_data->deleted = 1;
5341 _scsih_ublock_io_device(ioc, sas_device->sas_address);
5342 sas_target_priv_data->handle =
5343 MPT2SAS_INVALID_DEVICE_HANDLE;
5344 }
5345
5346 if (!ioc->hide_drives)
5347 mpt2sas_transport_port_remove(ioc,
5348 sas_device->sas_address,
5349 sas_device->sas_address_parent);
5350
5351 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
5352 "(0x%016llx)\n", ioc->name, sas_device->handle,
5353 (unsigned long long) sas_device->sas_address);
5354
5355 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: "
5356 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
5357 sas_device->handle, (unsigned long long)
5358 sas_device->sas_address));
5359 kfree(sas_device);
5360}
5361/**
5362 * _scsih_device_remove_by_handle - removing device object by handle
5363 * @ioc: per adapter object
5364 * @handle: device handle
5365 *
5366 * Return nothing.
5367 */
5368static void
5369_scsih_device_remove_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5370{
5371 struct _sas_device *sas_device;
5372 unsigned long flags;
5373
5374 if (ioc->shost_recovery)
5375 return;
5376
5377 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5378 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5379 if (sas_device)
5380 list_del(&sas_device->list);
5381 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5382 if (sas_device)
5383 _scsih_remove_device(ioc, sas_device);
5384}
5385
5386/**
5387 * mpt2sas_device_remove_by_sas_address - removing device object by sas address
5388 * @ioc: per adapter object
5389 * @sas_address: device sas_address
5390 *
5391 * Return nothing.
5392 */
5393void
5394mpt2sas_device_remove_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
5395 u64 sas_address)
5396{
5397 struct _sas_device *sas_device;
5398 unsigned long flags;
5399
5400 if (ioc->shost_recovery)
5401 return;
5402
5403 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5404 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5405 sas_address);
5406 if (sas_device)
5407 list_del(&sas_device->list);
5408 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5409 if (sas_device)
5410 _scsih_remove_device(ioc, sas_device);
5411}
5412#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5413/**
5414 * _scsih_sas_topology_change_event_debug - debug for topology event
5415 * @ioc: per adapter object
5416 * @event_data: event data payload
5417 * Context: user.
5418 */
5419static void
5420_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5421 Mpi2EventDataSasTopologyChangeList_t *event_data)
5422{
5423 int i;
5424 u16 handle;
5425 u16 reason_code;
5426 u8 phy_number;
5427 char *status_str = NULL;
5428 u8 link_rate, prev_link_rate;
5429
5430 switch (event_data->ExpStatus) {
5431 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
5432 status_str = "add";
5433 break;
5434 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
5435 status_str = "remove";
5436 break;
5437 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
5438 case 0:
5439 status_str = "responding";
5440 break;
5441 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
5442 status_str = "remove delay";
5443 break;
5444 default:
5445 status_str = "unknown status";
5446 break;
5447 }
5448 printk(MPT2SAS_INFO_FMT "sas topology change: (%s)\n",
5449 ioc->name, status_str);
5450 printk(KERN_INFO "\thandle(0x%04x), enclosure_handle(0x%04x) "
5451 "start_phy(%02d), count(%d)\n",
5452 le16_to_cpu(event_data->ExpanderDevHandle),
5453 le16_to_cpu(event_data->EnclosureHandle),
5454 event_data->StartPhyNum, event_data->NumEntries);
5455 for (i = 0; i < event_data->NumEntries; i++) {
5456 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5457 if (!handle)
5458 continue;
5459 phy_number = event_data->StartPhyNum + i;
5460 reason_code = event_data->PHY[i].PhyStatus &
5461 MPI2_EVENT_SAS_TOPO_RC_MASK;
5462 switch (reason_code) {
5463 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5464 status_str = "target add";
5465 break;
5466 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5467 status_str = "target remove";
5468 break;
5469 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
5470 status_str = "delay target remove";
5471 break;
5472 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5473 status_str = "link rate change";
5474 break;
5475 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
5476 status_str = "target responding";
5477 break;
5478 default:
5479 status_str = "unknown";
5480 break;
5481 }
5482 link_rate = event_data->PHY[i].LinkRate >> 4;
5483 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5484 printk(KERN_INFO "\tphy(%02d), attached_handle(0x%04x): %s:"
5485 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
5486 handle, status_str, link_rate, prev_link_rate);
5487
5488 }
5489}
5490#endif
5491
5492/**
5493 * _scsih_sas_topology_change_event - handle topology changes
5494 * @ioc: per adapter object
5495 * @fw_event: The fw_event_work object
5496 * Context: user.
5497 *
5498 */
5499static void
5500_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
5501 struct fw_event_work *fw_event)
5502{
5503 int i;
5504 u16 parent_handle, handle;
5505 u16 reason_code;
5506 u8 phy_number, max_phys;
5507 struct _sas_node *sas_expander;
5508 u64 sas_address;
5509 unsigned long flags;
5510 u8 link_rate, prev_link_rate;
5511 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
5512
5513#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5514 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5515 _scsih_sas_topology_change_event_debug(ioc, event_data);
5516#endif
5517
5518 if (ioc->remove_host || ioc->pci_error_recovery)
5519 return;
5520
5521 if (!ioc->sas_hba.num_phys)
5522 _scsih_sas_host_add(ioc);
5523 else
5524 _scsih_sas_host_refresh(ioc);
5525
5526 if (fw_event->ignore) {
5527 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring expander "
5528 "event\n", ioc->name));
5529 return;
5530 }
5531
5532 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
5533
5534 /* handle expander add */
5535 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
5536 if (_scsih_expander_add(ioc, parent_handle) != 0)
5537 return;
5538
5539 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5540 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
5541 parent_handle);
5542 if (sas_expander) {
5543 sas_address = sas_expander->sas_address;
5544 max_phys = sas_expander->num_phys;
5545 } else if (parent_handle < ioc->sas_hba.num_phys) {
5546 sas_address = ioc->sas_hba.sas_address;
5547 max_phys = ioc->sas_hba.num_phys;
5548 } else {
5549 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5550 return;
5551 }
5552 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5553
5554 /* handle siblings events */
5555 for (i = 0; i < event_data->NumEntries; i++) {
5556 if (fw_event->ignore) {
5557 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring "
5558 "expander event\n", ioc->name));
5559 return;
5560 }
5561 if (ioc->shost_recovery || ioc->remove_host ||
5562 ioc->pci_error_recovery)
5563 return;
5564 phy_number = event_data->StartPhyNum + i;
5565 if (phy_number >= max_phys)
5566 continue;
5567 reason_code = event_data->PHY[i].PhyStatus &
5568 MPI2_EVENT_SAS_TOPO_RC_MASK;
5569 if ((event_data->PHY[i].PhyStatus &
5570 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
5571 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
5572 continue;
5573 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5574 if (!handle)
5575 continue;
5576 link_rate = event_data->PHY[i].LinkRate >> 4;
5577 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
5578 switch (reason_code) {
5579 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
5580
5581 if (ioc->shost_recovery)
5582 break;
5583
5584 if (link_rate == prev_link_rate)
5585 break;
5586
5587 mpt2sas_transport_update_links(ioc, sas_address,
5588 handle, phy_number, link_rate);
5589
5590 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
5591 break;
5592
5593 _scsih_check_device(ioc, handle);
5594 break;
5595 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
5596
5597 if (ioc->shost_recovery)
5598 break;
5599
5600 mpt2sas_transport_update_links(ioc, sas_address,
5601 handle, phy_number, link_rate);
5602
5603 _scsih_add_device(ioc, handle, phy_number, 0);
5604 break;
5605 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
5606
5607 _scsih_device_remove_by_handle(ioc, handle);
5608 break;
5609 }
5610 }
5611
5612 /* handle expander removal */
5613 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
5614 sas_expander)
5615 mpt2sas_expander_remove(ioc, sas_address);
5616
5617}
5618
5619#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5620/**
5621 * _scsih_sas_device_status_change_event_debug - debug for device event
5622 * @event_data: event data payload
5623 * Context: user.
5624 *
5625 * Return nothing.
5626 */
5627static void
5628_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5629 Mpi2EventDataSasDeviceStatusChange_t *event_data)
5630{
5631 char *reason_str = NULL;
5632
5633 switch (event_data->ReasonCode) {
5634 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
5635 reason_str = "smart data";
5636 break;
5637 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
5638 reason_str = "unsupported device discovered";
5639 break;
5640 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
5641 reason_str = "internal device reset";
5642 break;
5643 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
5644 reason_str = "internal task abort";
5645 break;
5646 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
5647 reason_str = "internal task abort set";
5648 break;
5649 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
5650 reason_str = "internal clear task set";
5651 break;
5652 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
5653 reason_str = "internal query task";
5654 break;
5655 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
5656 reason_str = "sata init failure";
5657 break;
5658 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
5659 reason_str = "internal device reset complete";
5660 break;
5661 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
5662 reason_str = "internal task abort complete";
5663 break;
5664 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
5665 reason_str = "internal async notification";
5666 break;
5667 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
5668 reason_str = "expander reduced functionality";
5669 break;
5670 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
5671 reason_str = "expander reduced functionality complete";
5672 break;
5673 default:
5674 reason_str = "unknown reason";
5675 break;
5676 }
5677 printk(MPT2SAS_INFO_FMT "device status change: (%s)\n"
5678 "\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
5679 ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
5680 (unsigned long long)le64_to_cpu(event_data->SASAddress),
5681 le16_to_cpu(event_data->TaskTag));
5682 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
5683 printk(MPT2SAS_INFO_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
5684 event_data->ASC, event_data->ASCQ);
5685 printk(KERN_INFO "\n");
5686}
5687#endif
5688
5689/**
5690 * _scsih_sas_device_status_change_event - handle device status change
5691 * @ioc: per adapter object
5692 * @fw_event: The fw_event_work object
5693 * Context: user.
5694 *
5695 * Return nothing.
5696 */
5697static void
5698_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5699 struct fw_event_work *fw_event)
5700{
5701 struct MPT2SAS_TARGET *target_priv_data;
5702 struct _sas_device *sas_device;
5703 u64 sas_address;
5704 unsigned long flags;
5705 Mpi2EventDataSasDeviceStatusChange_t *event_data =
5706 fw_event->event_data;
5707
5708#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5709 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5710 _scsih_sas_device_status_change_event_debug(ioc,
5711 event_data);
5712#endif
5713
5714 /* In MPI Revision K (0xC), the internal device reset complete was
5715 * implemented, so avoid setting tm_busy flag for older firmware.
5716 */
5717 if ((ioc->facts.HeaderVersion >> 8) < 0xC)
5718 return;
5719
5720 if (event_data->ReasonCode !=
5721 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
5722 event_data->ReasonCode !=
5723 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
5724 return;
5725
5726 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5727 sas_address = le64_to_cpu(event_data->SASAddress);
5728 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5729 sas_address);
5730
5731 if (!sas_device || !sas_device->starget) {
5732 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5733 return;
5734 }
5735
5736 target_priv_data = sas_device->starget->hostdata;
5737 if (!target_priv_data) {
5738 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5739 return;
5740 }
5741
5742 if (event_data->ReasonCode ==
5743 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5744 target_priv_data->tm_busy = 1;
5745 else
5746 target_priv_data->tm_busy = 0;
5747 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5748}
5749
5750#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5751/**
5752 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
5753 * @ioc: per adapter object
5754 * @event_data: event data payload
5755 * Context: user.
5756 *
5757 * Return nothing.
5758 */
5759static void
5760_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5761 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
5762{
5763 char *reason_str = NULL;
5764
5765 switch (event_data->ReasonCode) {
5766 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
5767 reason_str = "enclosure add";
5768 break;
5769 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
5770 reason_str = "enclosure remove";
5771 break;
5772 default:
5773 reason_str = "unknown reason";
5774 break;
5775 }
5776
5777 printk(MPT2SAS_INFO_FMT "enclosure status change: (%s)\n"
5778 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
5779 " number slots(%d)\n", ioc->name, reason_str,
5780 le16_to_cpu(event_data->EnclosureHandle),
5781 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5782 le16_to_cpu(event_data->StartSlot));
5783}
5784#endif
5785
5786/**
5787 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5788 * @ioc: per adapter object
5789 * @fw_event: The fw_event_work object
5790 * Context: user.
5791 *
5792 * Return nothing.
5793 */
5794static void
5795_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5796 struct fw_event_work *fw_event)
5797{
5798#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5799 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5800 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
5801 fw_event->event_data);
5802#endif
5803}
5804
5805/**
5806 * _scsih_sas_broadcast_primitive_event - handle broadcast events
5807 * @ioc: per adapter object
5808 * @fw_event: The fw_event_work object
5809 * Context: user.
5810 *
5811 * Return nothing.
5812 */
5813static void
5814_scsih_sas_broadcast_primitive_event(struct MPT2SAS_ADAPTER *ioc,
5815 struct fw_event_work *fw_event)
5816{
5817 struct scsi_cmnd *scmd;
5818 struct scsi_device *sdev;
5819 u16 smid, handle;
5820 u32 lun;
5821 struct MPT2SAS_DEVICE *sas_device_priv_data;
5822 u32 termination_count;
5823 u32 query_count;
5824 Mpi2SCSITaskManagementReply_t *mpi_reply;
5825 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
5826 u16 ioc_status;
5827 unsigned long flags;
5828 int r;
5829 u8 max_retries = 0;
5830 u8 task_abort_retries;
5831
5832 mutex_lock(&ioc->tm_cmds.mutex);
5833 pr_info(MPT2SAS_FMT
5834 "%s: enter: phy number(%d), width(%d)\n",
5835 ioc->name, __func__, event_data->PhyNum,
5836 event_data->PortWidth);
5837
5838 _scsih_block_io_all_device(ioc);
5839
5840 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5841 mpi_reply = ioc->tm_cmds.reply;
5842broadcast_aen_retry:
5843
5844 /* sanity checks for retrying this loop */
5845 if (max_retries++ == 5) {
5846 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: giving up\n",
5847 ioc->name, __func__));
5848 goto out;
5849 } else if (max_retries > 1)
5850 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %d retry\n",
5851 ioc->name, __func__, max_retries - 1));
5852
5853 termination_count = 0;
5854 query_count = 0;
5855 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
5856 if (ioc->shost_recovery)
5857 goto out;
5858 scmd = _scsih_scsi_lookup_get(ioc, smid);
5859 if (!scmd)
5860 continue;
5861 sdev = scmd->device;
5862 sas_device_priv_data = sdev->hostdata;
5863 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5864 continue;
5865 /* skip hidden raid components */
5866 if (sas_device_priv_data->sas_target->flags &
5867 MPT_TARGET_FLAGS_RAID_COMPONENT)
5868 continue;
5869 /* skip volumes */
5870 if (sas_device_priv_data->sas_target->flags &
5871 MPT_TARGET_FLAGS_VOLUME)
5872 continue;
5873
5874 handle = sas_device_priv_data->sas_target->handle;
5875 lun = sas_device_priv_data->lun;
5876 query_count++;
5877
5878 if (ioc->shost_recovery)
5879 goto out;
5880
5881 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5882 r = mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5883 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
5884 TM_MUTEX_OFF);
5885 if (r == FAILED) {
5886 sdev_printk(KERN_WARNING, sdev,
5887 "mpt2sas_scsih_issue_tm: FAILED when sending "
5888 "QUERY_TASK: scmd(%p)\n", scmd);
5889 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5890 goto broadcast_aen_retry;
5891 }
5892 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5893 & MPI2_IOCSTATUS_MASK;
5894 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5895 sdev_printk(KERN_WARNING, sdev, "query task: FAILED "
5896 "with IOCSTATUS(0x%04x), scmd(%p)\n", ioc_status,
5897 scmd);
5898 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5899 goto broadcast_aen_retry;
5900 }
5901
5902 /* see if IO is still owned by IOC and target */
5903 if (mpi_reply->ResponseCode ==
5904 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5905 mpi_reply->ResponseCode ==
5906 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
5907 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5908 continue;
5909 }
5910 task_abort_retries = 0;
5911 tm_retry:
5912 if (task_abort_retries++ == 60) {
5913 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
5914 "%s: ABORT_TASK: giving up\n", ioc->name,
5915 __func__));
5916 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5917 goto broadcast_aen_retry;
5918 }
5919
5920 if (ioc->shost_recovery)
5921 goto out_no_lock;
5922
5923 r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
5924 sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
5925 scmd->serial_number, TM_MUTEX_OFF);
5926 if (r == FAILED) {
5927 sdev_printk(KERN_WARNING, sdev,
5928 "mpt2sas_scsih_issue_tm: ABORT_TASK: FAILED : "
5929 "scmd(%p)\n", scmd);
5930 goto tm_retry;
5931 }
5932
5933 if (task_abort_retries > 1)
5934 sdev_printk(KERN_WARNING, sdev,
5935 "mpt2sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
5936 " scmd(%p)\n",
5937 task_abort_retries - 1, scmd);
5938
5939 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
5940 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5941 }
5942
5943 if (ioc->broadcast_aen_pending) {
5944 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: loop back due to"
5945 " pending AEN\n", ioc->name, __func__));
5946 ioc->broadcast_aen_pending = 0;
5947 goto broadcast_aen_retry;
5948 }
5949
5950 out:
5951 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
5952 out_no_lock:
5953
5954 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
5955 "%s - exit, query_count = %d termination_count = %d\n",
5956 ioc->name, __func__, query_count, termination_count));
5957
5958 ioc->broadcast_aen_busy = 0;
5959 if (!ioc->shost_recovery)
5960 _scsih_ublock_io_all_device(ioc);
5961 mutex_unlock(&ioc->tm_cmds.mutex);
5962}
5963
5964/**
5965 * _scsih_sas_discovery_event - handle discovery events
5966 * @ioc: per adapter object
5967 * @fw_event: The fw_event_work object
5968 * Context: user.
5969 *
5970 * Return nothing.
5971 */
5972static void
5973_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
5974 struct fw_event_work *fw_event)
5975{
5976 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5977
5978#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5979 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
5980 printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
5981 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5982 "start" : "stop");
5983 if (event_data->DiscoveryStatus)
5984 printk("discovery_status(0x%08x)",
5985 le32_to_cpu(event_data->DiscoveryStatus));
5986 printk("\n");
5987 }
5988#endif
5989
5990 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
5991 !ioc->sas_hba.num_phys) {
5992 if (disable_discovery > 0 && ioc->shost_recovery) {
5993 /* Wait for the reset to complete */
5994 while (ioc->shost_recovery)
5995 ssleep(1);
5996 }
5997 _scsih_sas_host_add(ioc);
5998 }
5999}
6000
6001/**
6002 * _scsih_reprobe_lun - reprobing lun
6003 * @sdev: scsi device struct
6004 * @no_uld_attach: sdev->no_uld_attach flag setting
6005 *
6006 **/
6007static void
6008_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
6009{
6010 int rc;
6011
6012 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
6013 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
6014 sdev->no_uld_attach ? "hidding" : "exposing");
6015 rc = scsi_device_reprobe(sdev);
6016}
6017
6018/**
6019 * _scsih_sas_volume_add - add new volume
6020 * @ioc: per adapter object
6021 * @element: IR config element data
6022 * Context: user.
6023 *
6024 * Return nothing.
6025 */
6026static void
6027_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
6028 Mpi2EventIrConfigElement_t *element)
6029{
6030 struct _raid_device *raid_device;
6031 unsigned long flags;
6032 u64 wwid;
6033 u16 handle = le16_to_cpu(element->VolDevHandle);
6034 int rc;
6035
6036 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
6037 if (!wwid) {
6038 printk(MPT2SAS_ERR_FMT
6039 "failure at %s:%d/%s()!\n", ioc->name,
6040 __FILE__, __LINE__, __func__);
6041 return;
6042 }
6043
6044 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6045 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
6046 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6047
6048 if (raid_device)
6049 return;
6050
6051 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6052 if (!raid_device) {
6053 printk(MPT2SAS_ERR_FMT
6054 "failure at %s:%d/%s()!\n", ioc->name,
6055 __FILE__, __LINE__, __func__);
6056 return;
6057 }
6058
6059 raid_device->id = ioc->sas_id++;
6060 raid_device->channel = RAID_CHANNEL;
6061 raid_device->handle = handle;
6062 raid_device->wwid = wwid;
6063 _scsih_raid_device_add(ioc, raid_device);
6064 if (!ioc->wait_for_discovery_to_complete) {
6065 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6066 raid_device->id, 0);
6067 if (rc)
6068 _scsih_raid_device_remove(ioc, raid_device);
6069 } else {
6070 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6071 _scsih_determine_boot_device(ioc, raid_device, 1);
6072 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6073 }
6074}
6075
6076/**
6077 * _scsih_sas_volume_delete - delete volume
6078 * @ioc: per adapter object
6079 * @handle: volume device handle
6080 * Context: user.
6081 *
6082 * Return nothing.
6083 */
6084static void
6085_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
6086{
6087 struct _raid_device *raid_device;
6088 unsigned long flags;
6089 struct MPT2SAS_TARGET *sas_target_priv_data;
6090 struct scsi_target *starget = NULL;
6091
6092 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6093 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6094 if (raid_device) {
6095 if (raid_device->starget) {
6096 starget = raid_device->starget;
6097 sas_target_priv_data = starget->hostdata;
6098 sas_target_priv_data->deleted = 1;
6099 }
6100 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
6101 "(0x%016llx)\n", ioc->name, raid_device->handle,
6102 (unsigned long long) raid_device->wwid);
6103 list_del(&raid_device->list);
6104 kfree(raid_device);
6105 }
6106 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6107 if (starget)
6108 scsi_remove_target(&starget->dev);
6109}
6110
6111/**
6112 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
6113 * @ioc: per adapter object
6114 * @element: IR config element data
6115 * Context: user.
6116 *
6117 * Return nothing.
6118 */
6119static void
6120_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
6121 Mpi2EventIrConfigElement_t *element)
6122{
6123 struct _sas_device *sas_device;
6124 struct scsi_target *starget = NULL;
6125 struct MPT2SAS_TARGET *sas_target_priv_data;
6126 unsigned long flags;
6127 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6128
6129 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6130 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6131 if (sas_device) {
6132 sas_device->volume_handle = 0;
6133 sas_device->volume_wwid = 0;
6134 clear_bit(handle, ioc->pd_handles);
6135 if (sas_device->starget && sas_device->starget->hostdata) {
6136 starget = sas_device->starget;
6137 sas_target_priv_data = starget->hostdata;
6138 sas_target_priv_data->flags &=
6139 ~MPT_TARGET_FLAGS_RAID_COMPONENT;
6140 }
6141 }
6142 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6143 if (!sas_device)
6144 return;
6145
6146 /* exposing raid component */
6147 if (starget)
6148 starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
6149}
6150
6151/**
6152 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
6153 * @ioc: per adapter object
6154 * @element: IR config element data
6155 * Context: user.
6156 *
6157 * Return nothing.
6158 */
6159static void
6160_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
6161 Mpi2EventIrConfigElement_t *element)
6162{
6163 struct _sas_device *sas_device;
6164 struct scsi_target *starget = NULL;
6165 struct MPT2SAS_TARGET *sas_target_priv_data;
6166 unsigned long flags;
6167 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6168 u16 volume_handle = 0;
6169 u64 volume_wwid = 0;
6170
6171 mpt2sas_config_get_volume_handle(ioc, handle, &volume_handle);
6172 if (volume_handle)
6173 mpt2sas_config_get_volume_wwid(ioc, volume_handle,
6174 &volume_wwid);
6175
6176 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6177 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6178 if (sas_device) {
6179 set_bit(handle, ioc->pd_handles);
6180 if (sas_device->starget && sas_device->starget->hostdata) {
6181 starget = sas_device->starget;
6182 sas_target_priv_data = starget->hostdata;
6183 sas_target_priv_data->flags |=
6184 MPT_TARGET_FLAGS_RAID_COMPONENT;
6185 sas_device->volume_handle = volume_handle;
6186 sas_device->volume_wwid = volume_wwid;
6187 }
6188 }
6189 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6190 if (!sas_device)
6191 return;
6192
6193 /* hiding raid component */
6194 if (starget)
6195 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
6196}
6197
6198/**
6199 * _scsih_sas_pd_delete - delete pd component
6200 * @ioc: per adapter object
6201 * @element: IR config element data
6202 * Context: user.
6203 *
6204 * Return nothing.
6205 */
6206static void
6207_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
6208 Mpi2EventIrConfigElement_t *element)
6209{
6210 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6211
6212 _scsih_device_remove_by_handle(ioc, handle);
6213}
6214
6215/**
6216 * _scsih_sas_pd_add - remove pd component
6217 * @ioc: per adapter object
6218 * @element: IR config element data
6219 * Context: user.
6220 *
6221 * Return nothing.
6222 */
6223static void
6224_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
6225 Mpi2EventIrConfigElement_t *element)
6226{
6227 struct _sas_device *sas_device;
6228 unsigned long flags;
6229 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6230 Mpi2ConfigReply_t mpi_reply;
6231 Mpi2SasDevicePage0_t sas_device_pg0;
6232 u32 ioc_status;
6233 u64 sas_address;
6234 u16 parent_handle;
6235
6236 set_bit(handle, ioc->pd_handles);
6237
6238 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6239 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6240 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6241 if (sas_device)
6242 return;
6243
6244 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
6245 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
6246 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6247 ioc->name, __FILE__, __LINE__, __func__);
6248 return;
6249 }
6250
6251 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6252 MPI2_IOCSTATUS_MASK;
6253 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6254 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6255 ioc->name, __FILE__, __LINE__, __func__);
6256 return;
6257 }
6258
6259 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6260 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6261 mpt2sas_transport_update_links(ioc, sas_address, handle,
6262 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6263
6264 _scsih_add_device(ioc, handle, 0, 1);
6265}
6266
6267#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6268/**
6269 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
6270 * @ioc: per adapter object
6271 * @event_data: event data payload
6272 * Context: user.
6273 *
6274 * Return nothing.
6275 */
6276static void
6277_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
6278 Mpi2EventDataIrConfigChangeList_t *event_data)
6279{
6280 Mpi2EventIrConfigElement_t *element;
6281 u8 element_type;
6282 int i;
6283 char *reason_str = NULL, *element_str = NULL;
6284
6285 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6286
6287 printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
6288 ioc->name, (le32_to_cpu(event_data->Flags) &
6289 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
6290 "foreign" : "native", event_data->NumElements);
6291 for (i = 0; i < event_data->NumElements; i++, element++) {
6292 switch (element->ReasonCode) {
6293 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6294 reason_str = "add";
6295 break;
6296 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6297 reason_str = "remove";
6298 break;
6299 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
6300 reason_str = "no change";
6301 break;
6302 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6303 reason_str = "hide";
6304 break;
6305 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6306 reason_str = "unhide";
6307 break;
6308 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6309 reason_str = "volume_created";
6310 break;
6311 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6312 reason_str = "volume_deleted";
6313 break;
6314 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6315 reason_str = "pd_created";
6316 break;
6317 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6318 reason_str = "pd_deleted";
6319 break;
6320 default:
6321 reason_str = "unknown reason";
6322 break;
6323 }
6324 element_type = le16_to_cpu(element->ElementFlags) &
6325 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
6326 switch (element_type) {
6327 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
6328 element_str = "volume";
6329 break;
6330 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
6331 element_str = "phys disk";
6332 break;
6333 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
6334 element_str = "hot spare";
6335 break;
6336 default:
6337 element_str = "unknown element";
6338 break;
6339 }
6340 printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
6341 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
6342 reason_str, le16_to_cpu(element->VolDevHandle),
6343 le16_to_cpu(element->PhysDiskDevHandle),
6344 element->PhysDiskNum);
6345 }
6346}
6347#endif
6348
6349/**
6350 * _scsih_sas_ir_config_change_event - handle ir configuration change events
6351 * @ioc: per adapter object
6352 * @fw_event: The fw_event_work object
6353 * Context: user.
6354 *
6355 * Return nothing.
6356 */
6357static void
6358_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
6359 struct fw_event_work *fw_event)
6360{
6361 Mpi2EventIrConfigElement_t *element;
6362 int i;
6363 u8 foreign_config;
6364 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
6365
6366#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6367 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6368 && !ioc->hide_ir_msg)
6369 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
6370
6371#endif
6372
6373 if (ioc->shost_recovery)
6374 return;
6375
6376 foreign_config = (le32_to_cpu(event_data->Flags) &
6377 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
6378
6379 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6380 for (i = 0; i < event_data->NumElements; i++, element++) {
6381
6382 switch (element->ReasonCode) {
6383 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6384 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6385 if (!foreign_config)
6386 _scsih_sas_volume_add(ioc, element);
6387 break;
6388 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6389 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6390 if (!foreign_config)
6391 _scsih_sas_volume_delete(ioc,
6392 le16_to_cpu(element->VolDevHandle));
6393 break;
6394 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6395 if (!ioc->is_warpdrive)
6396 _scsih_sas_pd_hide(ioc, element);
6397 break;
6398 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6399 if (!ioc->is_warpdrive)
6400 _scsih_sas_pd_expose(ioc, element);
6401 break;
6402 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6403 if (!ioc->is_warpdrive)
6404 _scsih_sas_pd_add(ioc, element);
6405 break;
6406 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6407 if (!ioc->is_warpdrive)
6408 _scsih_sas_pd_delete(ioc, element);
6409 break;
6410 }
6411 }
6412}
6413
6414/**
6415 * _scsih_sas_ir_volume_event - IR volume event
6416 * @ioc: per adapter object
6417 * @fw_event: The fw_event_work object
6418 * Context: user.
6419 *
6420 * Return nothing.
6421 */
6422static void
6423_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
6424 struct fw_event_work *fw_event)
6425{
6426 u64 wwid;
6427 unsigned long flags;
6428 struct _raid_device *raid_device;
6429 u16 handle;
6430 u32 state;
6431 int rc;
6432 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
6433
6434 if (ioc->shost_recovery)
6435 return;
6436
6437 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
6438 return;
6439
6440 handle = le16_to_cpu(event_data->VolDevHandle);
6441 state = le32_to_cpu(event_data->NewValue);
6442 if (!ioc->hide_ir_msg)
6443 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6444 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6445 le32_to_cpu(event_data->PreviousValue), state));
6446
6447 switch (state) {
6448 case MPI2_RAID_VOL_STATE_MISSING:
6449 case MPI2_RAID_VOL_STATE_FAILED:
6450 _scsih_sas_volume_delete(ioc, handle);
6451 break;
6452
6453 case MPI2_RAID_VOL_STATE_ONLINE:
6454 case MPI2_RAID_VOL_STATE_DEGRADED:
6455 case MPI2_RAID_VOL_STATE_OPTIMAL:
6456
6457 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6458 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6459 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6460
6461 if (raid_device)
6462 break;
6463
6464 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
6465 if (!wwid) {
6466 printk(MPT2SAS_ERR_FMT
6467 "failure at %s:%d/%s()!\n", ioc->name,
6468 __FILE__, __LINE__, __func__);
6469 break;
6470 }
6471
6472 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6473 if (!raid_device) {
6474 printk(MPT2SAS_ERR_FMT
6475 "failure at %s:%d/%s()!\n", ioc->name,
6476 __FILE__, __LINE__, __func__);
6477 break;
6478 }
6479
6480 raid_device->id = ioc->sas_id++;
6481 raid_device->channel = RAID_CHANNEL;
6482 raid_device->handle = handle;
6483 raid_device->wwid = wwid;
6484 _scsih_raid_device_add(ioc, raid_device);
6485 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6486 raid_device->id, 0);
6487 if (rc)
6488 _scsih_raid_device_remove(ioc, raid_device);
6489 break;
6490
6491 case MPI2_RAID_VOL_STATE_INITIALIZING:
6492 default:
6493 break;
6494 }
6495}
6496
6497/**
6498 * _scsih_sas_ir_physical_disk_event - PD event
6499 * @ioc: per adapter object
6500 * @fw_event: The fw_event_work object
6501 * Context: user.
6502 *
6503 * Return nothing.
6504 */
6505static void
6506_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
6507 struct fw_event_work *fw_event)
6508{
6509 u16 handle, parent_handle;
6510 u32 state;
6511 struct _sas_device *sas_device;
6512 unsigned long flags;
6513 Mpi2ConfigReply_t mpi_reply;
6514 Mpi2SasDevicePage0_t sas_device_pg0;
6515 u32 ioc_status;
6516 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
6517 u64 sas_address;
6518
6519 if (ioc->shost_recovery)
6520 return;
6521
6522 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
6523 return;
6524
6525 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
6526 state = le32_to_cpu(event_data->NewValue);
6527
6528 if (!ioc->hide_ir_msg)
6529 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6530 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6531 le32_to_cpu(event_data->PreviousValue), state));
6532
6533 switch (state) {
6534 case MPI2_RAID_PD_STATE_ONLINE:
6535 case MPI2_RAID_PD_STATE_DEGRADED:
6536 case MPI2_RAID_PD_STATE_REBUILDING:
6537 case MPI2_RAID_PD_STATE_OPTIMAL:
6538 case MPI2_RAID_PD_STATE_HOT_SPARE:
6539
6540 if (!ioc->is_warpdrive)
6541 set_bit(handle, ioc->pd_handles);
6542
6543 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6544 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6545 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6546
6547 if (sas_device)
6548 return;
6549
6550 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6551 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6552 handle))) {
6553 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6554 ioc->name, __FILE__, __LINE__, __func__);
6555 return;
6556 }
6557
6558 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6559 MPI2_IOCSTATUS_MASK;
6560 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6561 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6562 ioc->name, __FILE__, __LINE__, __func__);
6563 return;
6564 }
6565
6566 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6567 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6568 mpt2sas_transport_update_links(ioc, sas_address, handle,
6569 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6570
6571 _scsih_add_device(ioc, handle, 0, 1);
6572
6573 break;
6574
6575 case MPI2_RAID_PD_STATE_OFFLINE:
6576 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
6577 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
6578 default:
6579 break;
6580 }
6581}
6582
6583#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6584/**
6585 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
6586 * @ioc: per adapter object
6587 * @event_data: event data payload
6588 * Context: user.
6589 *
6590 * Return nothing.
6591 */
6592static void
6593_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
6594 Mpi2EventDataIrOperationStatus_t *event_data)
6595{
6596 char *reason_str = NULL;
6597
6598 switch (event_data->RAIDOperation) {
6599 case MPI2_EVENT_IR_RAIDOP_RESYNC:
6600 reason_str = "resync";
6601 break;
6602 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
6603 reason_str = "online capacity expansion";
6604 break;
6605 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
6606 reason_str = "consistency check";
6607 break;
6608 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
6609 reason_str = "background init";
6610 break;
6611 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
6612 reason_str = "make data consistent";
6613 break;
6614 }
6615
6616 if (!reason_str)
6617 return;
6618
6619 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
6620 "\thandle(0x%04x), percent complete(%d)\n",
6621 ioc->name, reason_str,
6622 le16_to_cpu(event_data->VolDevHandle),
6623 event_data->PercentComplete);
6624}
6625#endif
6626
6627/**
6628 * _scsih_sas_ir_operation_status_event - handle RAID operation events
6629 * @ioc: per adapter object
6630 * @fw_event: The fw_event_work object
6631 * Context: user.
6632 *
6633 * Return nothing.
6634 */
6635static void
6636_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
6637 struct fw_event_work *fw_event)
6638{
6639 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
6640 static struct _raid_device *raid_device;
6641 unsigned long flags;
6642 u16 handle;
6643
6644#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6645 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6646 && !ioc->hide_ir_msg)
6647 _scsih_sas_ir_operation_status_event_debug(ioc,
6648 event_data);
6649#endif
6650
6651 /* code added for raid transport support */
6652 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
6653
6654 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6655 handle = le16_to_cpu(event_data->VolDevHandle);
6656 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6657 if (raid_device)
6658 raid_device->percent_complete =
6659 event_data->PercentComplete;
6660 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6661 }
6662}
6663
6664/**
6665 * _scsih_prep_device_scan - initialize parameters prior to device scan
6666 * @ioc: per adapter object
6667 *
6668 * Set the deleted flag prior to device scan. If the device is found during
6669 * the scan, then we clear the deleted flag.
6670 */
6671static void
6672_scsih_prep_device_scan(struct MPT2SAS_ADAPTER *ioc)
6673{
6674 struct MPT2SAS_DEVICE *sas_device_priv_data;
6675 struct scsi_device *sdev;
6676
6677 shost_for_each_device(sdev, ioc->shost) {
6678 sas_device_priv_data = sdev->hostdata;
6679 if (sas_device_priv_data && sas_device_priv_data->sas_target)
6680 sas_device_priv_data->sas_target->deleted = 1;
6681 }
6682}
6683
6684/**
6685 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6686 * @ioc: per adapter object
6687 * @sas_address: sas address
6688 * @slot: enclosure slot id
6689 * @handle: device handle
6690 *
6691 * After host reset, find out whether devices are still responding.
6692 * Used in _scsi_remove_unresponsive_sas_devices.
6693 *
6694 * Return nothing.
6695 */
6696static void
6697_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6698 u16 slot, u16 handle)
6699{
6700 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
6701 struct scsi_target *starget;
6702 struct _sas_device *sas_device;
6703 unsigned long flags;
6704
6705 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6706 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6707 if (sas_device->sas_address == sas_address &&
6708 sas_device->slot == slot) {
6709 sas_device->responding = 1;
6710 starget = sas_device->starget;
6711 if (starget && starget->hostdata) {
6712 sas_target_priv_data = starget->hostdata;
6713 sas_target_priv_data->tm_busy = 0;
6714 sas_target_priv_data->deleted = 0;
6715 } else
6716 sas_target_priv_data = NULL;
6717 if (starget)
6718 starget_printk(KERN_INFO, starget,
6719 "handle(0x%04x), sas_addr(0x%016llx), "
6720 "enclosure logical id(0x%016llx), "
6721 "slot(%d)\n", handle,
6722 (unsigned long long)sas_device->sas_address,
6723 (unsigned long long)
6724 sas_device->enclosure_logical_id,
6725 sas_device->slot);
6726 if (sas_device->handle == handle)
6727 goto out;
6728 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6729 sas_device->handle);
6730 sas_device->handle = handle;
6731 if (sas_target_priv_data)
6732 sas_target_priv_data->handle = handle;
6733 goto out;
6734 }
6735 }
6736 out:
6737 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6738}
6739
6740/**
6741 * _scsih_search_responding_sas_devices -
6742 * @ioc: per adapter object
6743 *
6744 * After host reset, find out whether devices are still responding.
6745 * If not remove.
6746 *
6747 * Return nothing.
6748 */
6749static void
6750_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
6751{
6752 Mpi2SasDevicePage0_t sas_device_pg0;
6753 Mpi2ConfigReply_t mpi_reply;
6754 u16 ioc_status;
6755 __le64 sas_address;
6756 u16 handle;
6757 u32 device_info;
6758 u16 slot;
6759
6760 printk(MPT2SAS_INFO_FMT "search for end-devices: start\n", ioc->name);
6761
6762 if (list_empty(&ioc->sas_device_list))
6763 goto out;
6764
6765 handle = 0xFFFF;
6766 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6767 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6768 handle))) {
6769 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6770 MPI2_IOCSTATUS_MASK;
6771 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
6772 break;
6773 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6774 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6775 if (!(_scsih_is_end_device(device_info)))
6776 continue;
6777 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
6778 slot = le16_to_cpu(sas_device_pg0.Slot);
6779 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
6780 handle);
6781 }
6782out:
6783 printk(MPT2SAS_INFO_FMT "search for end-devices: complete\n",
6784 ioc->name);
6785}
6786
6787/**
6788 * _scsih_mark_responding_raid_device - mark a raid_device as responding
6789 * @ioc: per adapter object
6790 * @wwid: world wide identifier for raid volume
6791 * @handle: device handle
6792 *
6793 * After host reset, find out whether devices are still responding.
6794 * Used in _scsi_remove_unresponsive_raid_devices.
6795 *
6796 * Return nothing.
6797 */
6798static void
6799_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
6800 u16 handle)
6801{
6802 struct MPT2SAS_TARGET *sas_target_priv_data;
6803 struct scsi_target *starget;
6804 struct _raid_device *raid_device;
6805 unsigned long flags;
6806
6807 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6808 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
6809 if (raid_device->wwid == wwid && raid_device->starget) {
6810 starget = raid_device->starget;
6811 if (starget && starget->hostdata) {
6812 sas_target_priv_data = starget->hostdata;
6813 sas_target_priv_data->deleted = 0;
6814 } else
6815 sas_target_priv_data = NULL;
6816 raid_device->responding = 1;
6817 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6818 starget_printk(KERN_INFO, raid_device->starget,
6819 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6820 (unsigned long long)raid_device->wwid);
6821 /*
6822 * WARPDRIVE: The handles of the PDs might have changed
6823 * across the host reset so re-initialize the
6824 * required data for Direct IO
6825 */
6826 _scsih_init_warpdrive_properties(ioc, raid_device);
6827 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6828 if (raid_device->handle == handle) {
6829 spin_unlock_irqrestore(&ioc->raid_device_lock,
6830 flags);
6831 return;
6832 }
6833 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6834 raid_device->handle);
6835 raid_device->handle = handle;
6836 if (sas_target_priv_data)
6837 sas_target_priv_data->handle = handle;
6838 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6839 return;
6840 }
6841 }
6842
6843 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6844}
6845
6846/**
6847 * _scsih_search_responding_raid_devices -
6848 * @ioc: per adapter object
6849 *
6850 * After host reset, find out whether devices are still responding.
6851 * If not remove.
6852 *
6853 * Return nothing.
6854 */
6855static void
6856_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
6857{
6858 Mpi2RaidVolPage1_t volume_pg1;
6859 Mpi2RaidVolPage0_t volume_pg0;
6860 Mpi2RaidPhysDiskPage0_t pd_pg0;
6861 Mpi2ConfigReply_t mpi_reply;
6862 u16 ioc_status;
6863 u16 handle;
6864 u8 phys_disk_num;
6865
6866 if (!ioc->ir_firmware)
6867 return;
6868
6869 printk(MPT2SAS_INFO_FMT "search for raid volumes: start\n",
6870 ioc->name);
6871
6872 if (list_empty(&ioc->raid_device_list))
6873 goto out;
6874
6875 handle = 0xFFFF;
6876 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6877 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6878 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6879 MPI2_IOCSTATUS_MASK;
6880 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
6881 break;
6882 handle = le16_to_cpu(volume_pg1.DevHandle);
6883
6884 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6885 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6886 sizeof(Mpi2RaidVolPage0_t)))
6887 continue;
6888
6889 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6890 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6891 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6892 _scsih_mark_responding_raid_device(ioc,
6893 le64_to_cpu(volume_pg1.WWID), handle);
6894 }
6895
6896 /* refresh the pd_handles */
6897 if (!ioc->is_warpdrive) {
6898 phys_disk_num = 0xFF;
6899 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6900 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6901 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6902 phys_disk_num))) {
6903 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6904 MPI2_IOCSTATUS_MASK;
6905 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
6906 break;
6907 phys_disk_num = pd_pg0.PhysDiskNum;
6908 handle = le16_to_cpu(pd_pg0.DevHandle);
6909 set_bit(handle, ioc->pd_handles);
6910 }
6911 }
6912out:
6913 printk(MPT2SAS_INFO_FMT "search for responding raid volumes: "
6914 "complete\n", ioc->name);
6915}
6916
6917/**
6918 * _scsih_mark_responding_expander - mark a expander as responding
6919 * @ioc: per adapter object
6920 * @sas_address: sas address
6921 * @handle:
6922 *
6923 * After host reset, find out whether devices are still responding.
6924 * Used in _scsi_remove_unresponsive_expanders.
6925 *
6926 * Return nothing.
6927 */
6928static void
6929_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6930 u16 handle)
6931{
6932 struct _sas_node *sas_expander;
6933 unsigned long flags;
6934 int i;
6935
6936 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6937 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
6938 if (sas_expander->sas_address != sas_address)
6939 continue;
6940 sas_expander->responding = 1;
6941 if (sas_expander->handle == handle)
6942 goto out;
6943 printk(KERN_INFO "\texpander(0x%016llx): handle changed"
6944 " from(0x%04x) to (0x%04x)!!!\n",
6945 (unsigned long long)sas_expander->sas_address,
6946 sas_expander->handle, handle);
6947 sas_expander->handle = handle;
6948 for (i = 0 ; i < sas_expander->num_phys ; i++)
6949 sas_expander->phy[i].handle = handle;
6950 goto out;
6951 }
6952 out:
6953 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6954}
6955
6956/**
6957 * _scsih_search_responding_expanders -
6958 * @ioc: per adapter object
6959 *
6960 * After host reset, find out whether devices are still responding.
6961 * If not remove.
6962 *
6963 * Return nothing.
6964 */
6965static void
6966_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
6967{
6968 Mpi2ExpanderPage0_t expander_pg0;
6969 Mpi2ConfigReply_t mpi_reply;
6970 u16 ioc_status;
6971 u64 sas_address;
6972 u16 handle;
6973
6974 printk(MPT2SAS_INFO_FMT "search for expanders: start\n", ioc->name);
6975
6976 if (list_empty(&ioc->sas_expander_list))
6977 goto out;
6978
6979 handle = 0xFFFF;
6980 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6981 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6982
6983 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6984 MPI2_IOCSTATUS_MASK;
6985 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
6986 break;
6987
6988 handle = le16_to_cpu(expander_pg0.DevHandle);
6989 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6990 printk(KERN_INFO "\texpander present: handle(0x%04x), "
6991 "sas_addr(0x%016llx)\n", handle,
6992 (unsigned long long)sas_address);
6993 _scsih_mark_responding_expander(ioc, sas_address, handle);
6994 }
6995
6996 out:
6997 printk(MPT2SAS_INFO_FMT "search for expanders: complete\n", ioc->name);
6998}
6999
7000/**
7001 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
7002 * @ioc: per adapter object
7003 *
7004 * Return nothing.
7005 */
7006static void
7007_scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
7008{
7009 struct _sas_device *sas_device, *sas_device_next;
7010 struct _sas_node *sas_expander, *sas_expander_next;
7011 struct _raid_device *raid_device, *raid_device_next;
7012 struct list_head tmp_list;
7013 unsigned long flags;
7014
7015 printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n",
7016 ioc->name);
7017
7018 /* removing unresponding end devices */
7019 printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n",
7020 ioc->name);
7021 list_for_each_entry_safe(sas_device, sas_device_next,
7022 &ioc->sas_device_list, list) {
7023 if (!sas_device->responding)
7024 mpt2sas_device_remove_by_sas_address(ioc,
7025 sas_device->sas_address);
7026 else
7027 sas_device->responding = 0;
7028 }
7029
7030 /* removing unresponding volumes */
7031 if (ioc->ir_firmware) {
7032 printk(MPT2SAS_INFO_FMT "removing unresponding devices: "
7033 "volumes\n", ioc->name);
7034 list_for_each_entry_safe(raid_device, raid_device_next,
7035 &ioc->raid_device_list, list) {
7036 if (!raid_device->responding)
7037 _scsih_sas_volume_delete(ioc,
7038 raid_device->handle);
7039 else
7040 raid_device->responding = 0;
7041 }
7042 }
7043 /* removing unresponding expanders */
7044 printk(MPT2SAS_INFO_FMT "removing unresponding devices: expanders\n",
7045 ioc->name);
7046 spin_lock_irqsave(&ioc->sas_node_lock, flags);
7047 INIT_LIST_HEAD(&tmp_list);
7048 list_for_each_entry_safe(sas_expander, sas_expander_next,
7049 &ioc->sas_expander_list, list) {
7050 if (!sas_expander->responding)
7051 list_move_tail(&sas_expander->list, &tmp_list);
7052 else
7053 sas_expander->responding = 0;
7054 }
7055 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
7056 list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
7057 list) {
7058 list_del(&sas_expander->list);
7059 _scsih_expander_node_remove(ioc, sas_expander);
7060 }
7061 printk(MPT2SAS_INFO_FMT "removing unresponding devices: complete\n",
7062 ioc->name);
7063 /* unblock devices */
7064 _scsih_ublock_io_all_device(ioc);
7065}
7066
7067static void
7068_scsih_refresh_expander_links(struct MPT2SAS_ADAPTER *ioc,
7069 struct _sas_node *sas_expander, u16 handle)
7070{
7071 Mpi2ExpanderPage1_t expander_pg1;
7072 Mpi2ConfigReply_t mpi_reply;
7073 int i;
7074
7075 for (i = 0 ; i < sas_expander->num_phys ; i++) {
7076 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
7077 &expander_pg1, i, handle))) {
7078 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7079 ioc->name, __FILE__, __LINE__, __func__);
7080 return;
7081 }
7082
7083 mpt2sas_transport_update_links(ioc, sas_expander->sas_address,
7084 le16_to_cpu(expander_pg1.AttachedDevHandle), i,
7085 expander_pg1.NegotiatedLinkRate >> 4);
7086 }
7087}
7088
7089/**
7090 * _scsih_scan_for_devices_after_reset - scan for devices after host reset
7091 * @ioc: per adapter object
7092 *
7093 * Return nothing.
7094 */
7095static void
7096_scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
7097{
7098 Mpi2ExpanderPage0_t expander_pg0;
7099 Mpi2SasDevicePage0_t sas_device_pg0;
7100 Mpi2RaidVolPage1_t volume_pg1;
7101 Mpi2RaidVolPage0_t volume_pg0;
7102 Mpi2RaidPhysDiskPage0_t pd_pg0;
7103 Mpi2EventIrConfigElement_t element;
7104 Mpi2ConfigReply_t mpi_reply;
7105 u8 phys_disk_num;
7106 u16 ioc_status;
7107 u16 handle, parent_handle;
7108 u64 sas_address;
7109 struct _sas_device *sas_device;
7110 struct _sas_node *expander_device;
7111 static struct _raid_device *raid_device;
7112 u8 retry_count;
7113 unsigned long flags;
7114
7115 printk(MPT2SAS_INFO_FMT "scan devices: start\n", ioc->name);
7116
7117 _scsih_sas_host_refresh(ioc);
7118
7119 printk(MPT2SAS_INFO_FMT "\tscan devices: expanders start\n",
7120 ioc->name);
7121 /* expanders */
7122 handle = 0xFFFF;
7123 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
7124 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
7125 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7126 MPI2_IOCSTATUS_MASK;
7127 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7128 printk(MPT2SAS_INFO_FMT "\tbreak from expander scan: "
7129 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7130 ioc->name, ioc_status,
7131 le32_to_cpu(mpi_reply.IOCLogInfo));
7132 break;
7133 }
7134 handle = le16_to_cpu(expander_pg0.DevHandle);
7135 spin_lock_irqsave(&ioc->sas_node_lock, flags);
7136 expander_device = mpt2sas_scsih_expander_find_by_sas_address(
7137 ioc, le64_to_cpu(expander_pg0.SASAddress));
7138 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
7139 if (expander_device)
7140 _scsih_refresh_expander_links(ioc, expander_device,
7141 handle);
7142 else {
7143 printk(MPT2SAS_INFO_FMT "\tBEFORE adding expander: "
7144 "handle (0x%04x), sas_addr(0x%016llx)\n",
7145 ioc->name, handle, (unsigned long long)
7146 le64_to_cpu(expander_pg0.SASAddress));
7147 _scsih_expander_add(ioc, handle);
7148 printk(MPT2SAS_INFO_FMT "\tAFTER adding expander: "
7149 "handle (0x%04x), sas_addr(0x%016llx)\n",
7150 ioc->name, handle, (unsigned long long)
7151 le64_to_cpu(expander_pg0.SASAddress));
7152 }
7153 }
7154
7155 printk(MPT2SAS_INFO_FMT "\tscan devices: expanders complete\n",
7156 ioc->name);
7157
7158 if (!ioc->ir_firmware)
7159 goto skip_to_sas;
7160
7161 printk(MPT2SAS_INFO_FMT "\tscan devices phys disk start\n", ioc->name);
7162 /* phys disk */
7163 phys_disk_num = 0xFF;
7164 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
7165 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
7166 phys_disk_num))) {
7167 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7168 MPI2_IOCSTATUS_MASK;
7169 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7170 printk(MPT2SAS_INFO_FMT "\tbreak from phys disk scan:"
7171 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7172 ioc->name, ioc_status,
7173 le32_to_cpu(mpi_reply.IOCLogInfo));
7174 break;
7175 }
7176 phys_disk_num = pd_pg0.PhysDiskNum;
7177 handle = le16_to_cpu(pd_pg0.DevHandle);
7178 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7179 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
7180 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7181 if (sas_device)
7182 continue;
7183 if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
7184 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
7185 handle) != 0)
7186 continue;
7187 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7188 MPI2_IOCSTATUS_MASK;
7189 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7190 printk(MPT2SAS_INFO_FMT "\tbreak from phys disk scan "
7191 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7192 ioc->name, ioc_status,
7193 le32_to_cpu(mpi_reply.IOCLogInfo));
7194 break;
7195 }
7196 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
7197 if (!_scsih_get_sas_address(ioc, parent_handle,
7198 &sas_address)) {
7199 printk(MPT2SAS_INFO_FMT "\tBEFORE adding phys disk: "
7200 " handle (0x%04x), sas_addr(0x%016llx)\n",
7201 ioc->name, handle, (unsigned long long)
7202 le64_to_cpu(sas_device_pg0.SASAddress));
7203 mpt2sas_transport_update_links(ioc, sas_address,
7204 handle, sas_device_pg0.PhyNum,
7205 MPI2_SAS_NEG_LINK_RATE_1_5);
7206 set_bit(handle, ioc->pd_handles);
7207 retry_count = 0;
7208 /* This will retry adding the end device.
7209 * _scsih_add_device() will decide on retries and
7210 * return "1" when it should be retried
7211 */
7212 while (_scsih_add_device(ioc, handle, retry_count++,
7213 1)) {
7214 ssleep(1);
7215 }
7216 printk(MPT2SAS_INFO_FMT "\tAFTER adding phys disk: "
7217 " handle (0x%04x), sas_addr(0x%016llx)\n",
7218 ioc->name, handle, (unsigned long long)
7219 le64_to_cpu(sas_device_pg0.SASAddress));
7220 }
7221 }
7222
7223 printk(MPT2SAS_INFO_FMT "\tscan devices: phys disk complete\n",
7224 ioc->name);
7225
7226 printk(MPT2SAS_INFO_FMT "\tscan devices: volumes start\n", ioc->name);
7227 /* volumes */
7228 handle = 0xFFFF;
7229 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
7230 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
7231 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7232 MPI2_IOCSTATUS_MASK;
7233 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7234 printk(MPT2SAS_INFO_FMT "\tbreak from volume scan: "
7235 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7236 ioc->name, ioc_status,
7237 le32_to_cpu(mpi_reply.IOCLogInfo));
7238 break;
7239 }
7240 handle = le16_to_cpu(volume_pg1.DevHandle);
7241 spin_lock_irqsave(&ioc->raid_device_lock, flags);
7242 raid_device = _scsih_raid_device_find_by_wwid(ioc,
7243 le64_to_cpu(volume_pg1.WWID));
7244 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
7245 if (raid_device)
7246 continue;
7247 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
7248 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
7249 sizeof(Mpi2RaidVolPage0_t)))
7250 continue;
7251 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7252 MPI2_IOCSTATUS_MASK;
7253 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7254 printk(MPT2SAS_INFO_FMT "\tbreak from volume scan: "
7255 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7256 ioc->name, ioc_status,
7257 le32_to_cpu(mpi_reply.IOCLogInfo));
7258 break;
7259 }
7260 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
7261 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
7262 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
7263 memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
7264 element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
7265 element.VolDevHandle = volume_pg1.DevHandle;
7266 printk(MPT2SAS_INFO_FMT "\tBEFORE adding volume: "
7267 " handle (0x%04x)\n", ioc->name,
7268 volume_pg1.DevHandle);
7269 _scsih_sas_volume_add(ioc, &element);
7270 printk(MPT2SAS_INFO_FMT "\tAFTER adding volume: "
7271 " handle (0x%04x)\n", ioc->name,
7272 volume_pg1.DevHandle);
7273 }
7274 }
7275
7276 printk(MPT2SAS_INFO_FMT "\tscan devices: volumes complete\n",
7277 ioc->name);
7278
7279 skip_to_sas:
7280
7281 printk(MPT2SAS_INFO_FMT "\tscan devices: end devices start\n",
7282 ioc->name);
7283 /* sas devices */
7284 handle = 0xFFFF;
7285 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
7286 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
7287 handle))) {
7288 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7289 MPI2_IOCSTATUS_MASK;
7290 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7291 printk(MPT2SAS_INFO_FMT "\tbreak from end device scan:"
7292 " ioc_status(0x%04x), loginfo(0x%08x)\n",
7293 ioc->name, ioc_status,
7294 le32_to_cpu(mpi_reply.IOCLogInfo));
7295 break;
7296 }
7297 handle = le16_to_cpu(sas_device_pg0.DevHandle);
7298 if (!(_scsih_is_end_device(
7299 le32_to_cpu(sas_device_pg0.DeviceInfo))))
7300 continue;
7301 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7302 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
7303 le64_to_cpu(sas_device_pg0.SASAddress));
7304 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7305 if (sas_device)
7306 continue;
7307 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
7308 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
7309 printk(MPT2SAS_INFO_FMT "\tBEFORE adding end device: "
7310 "handle (0x%04x), sas_addr(0x%016llx)\n",
7311 ioc->name, handle, (unsigned long long)
7312 le64_to_cpu(sas_device_pg0.SASAddress));
7313 mpt2sas_transport_update_links(ioc, sas_address, handle,
7314 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
7315 retry_count = 0;
7316 /* This will retry adding the end device.
7317 * _scsih_add_device() will decide on retries and
7318 * return "1" when it should be retried
7319 */
7320 while (_scsih_add_device(ioc, handle, retry_count++,
7321 0)) {
7322 ssleep(1);
7323 }
7324 printk(MPT2SAS_INFO_FMT "\tAFTER adding end device: "
7325 "handle (0x%04x), sas_addr(0x%016llx)\n",
7326 ioc->name, handle, (unsigned long long)
7327 le64_to_cpu(sas_device_pg0.SASAddress));
7328 }
7329 }
7330
7331 printk(MPT2SAS_INFO_FMT "\tscan devices: end devices complete\n",
7332 ioc->name);
7333
7334 printk(MPT2SAS_INFO_FMT "scan devices: complete\n", ioc->name);
7335}
7336
7337
7338/**
7339 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
7340 * @ioc: per adapter object
7341 * @reset_phase: phase
7342 *
7343 * The handler for doing any required cleanup or initialization.
7344 *
7345 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
7346 * MPT2_IOC_DONE_RESET
7347 *
7348 * Return nothing.
7349 */
7350void
7351mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
7352{
7353 switch (reset_phase) {
7354 case MPT2_IOC_PRE_RESET:
7355 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
7356 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
7357 break;
7358 case MPT2_IOC_AFTER_RESET:
7359 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
7360 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
7361 if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
7362 ioc->scsih_cmds.status |= MPT2_CMD_RESET;
7363 mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
7364 complete(&ioc->scsih_cmds.done);
7365 }
7366 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
7367 ioc->tm_cmds.status |= MPT2_CMD_RESET;
7368 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
7369 complete(&ioc->tm_cmds.done);
7370 }
7371 _scsih_fw_event_cleanup_queue(ioc);
7372 _scsih_flush_running_cmds(ioc);
7373 break;
7374 case MPT2_IOC_DONE_RESET:
7375 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
7376 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
7377 _scsih_sas_host_refresh(ioc);
7378 _scsih_prep_device_scan(ioc);
7379 _scsih_search_responding_sas_devices(ioc);
7380 _scsih_search_responding_raid_devices(ioc);
7381 _scsih_search_responding_expanders(ioc);
7382 if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
7383 !ioc->sas_hba.num_phys)) {
7384 _scsih_prep_device_scan(ioc);
7385 _scsih_search_responding_sas_devices(ioc);
7386 _scsih_search_responding_raid_devices(ioc);
7387 _scsih_search_responding_expanders(ioc);
7388 _scsih_error_recovery_delete_devices(ioc);
7389 }
7390 break;
7391 }
7392}
7393
7394/**
7395 * _firmware_event_work - delayed task for processing firmware events
7396 * @ioc: per adapter object
7397 * @work: equal to the fw_event_work object
7398 * Context: user.
7399 *
7400 * Return nothing.
7401 */
7402static void
7403_firmware_event_work(struct work_struct *work)
7404{
7405 struct fw_event_work *fw_event = container_of(work,
7406 struct fw_event_work, delayed_work.work);
7407 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
7408
7409 /* the queue is being flushed so ignore this event */
7410 if (ioc->remove_host || fw_event->cancel_pending_work ||
7411 ioc->pci_error_recovery) {
7412 _scsih_fw_event_free(ioc, fw_event);
7413 return;
7414 }
7415
7416 switch (fw_event->event) {
7417 case MPT2SAS_REMOVE_UNRESPONDING_DEVICES:
7418 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
7419 ssleep(1);
7420 _scsih_remove_unresponding_sas_devices(ioc);
7421 _scsih_scan_for_devices_after_reset(ioc);
7422 break;
7423 case MPT2SAS_PORT_ENABLE_COMPLETE:
7424 ioc->start_scan = 0;
7425
7426 if (missing_delay[0] != -1 && missing_delay[1] != -1)
7427 mpt2sas_base_update_missing_delay(ioc, missing_delay[0],
7428 missing_delay[1]);
7429
7430 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "port enable: complete "
7431 "from worker thread\n", ioc->name));
7432 break;
7433 case MPT2SAS_TURN_ON_FAULT_LED:
7434 _scsih_turn_on_fault_led(ioc, fw_event->device_handle);
7435 break;
7436 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7437 _scsih_sas_topology_change_event(ioc, fw_event);
7438 break;
7439 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7440 _scsih_sas_device_status_change_event(ioc,
7441 fw_event);
7442 break;
7443 case MPI2_EVENT_SAS_DISCOVERY:
7444 _scsih_sas_discovery_event(ioc,
7445 fw_event);
7446 break;
7447 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7448 _scsih_sas_broadcast_primitive_event(ioc,
7449 fw_event);
7450 break;
7451 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7452 _scsih_sas_enclosure_dev_status_change_event(ioc,
7453 fw_event);
7454 break;
7455 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7456 _scsih_sas_ir_config_change_event(ioc, fw_event);
7457 break;
7458 case MPI2_EVENT_IR_VOLUME:
7459 _scsih_sas_ir_volume_event(ioc, fw_event);
7460 break;
7461 case MPI2_EVENT_IR_PHYSICAL_DISK:
7462 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
7463 break;
7464 case MPI2_EVENT_IR_OPERATION_STATUS:
7465 _scsih_sas_ir_operation_status_event(ioc, fw_event);
7466 break;
7467 }
7468 _scsih_fw_event_free(ioc, fw_event);
7469}
7470
7471/**
7472 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
7473 * @ioc: per adapter object
7474 * @msix_index: MSIX table index supplied by the OS
7475 * @reply: reply message frame(lower 32bit addr)
7476 * Context: interrupt.
7477 *
7478 * This function merely adds a new work task into ioc->firmware_event_thread.
7479 * The tasks are worked from _firmware_event_work in user context.
7480 *
7481 * Returns void.
7482 */
7483void
7484mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
7485 u32 reply)
7486{
7487 struct fw_event_work *fw_event;
7488 Mpi2EventNotificationReply_t *mpi_reply;
7489 u16 event;
7490 u16 sz;
7491
7492 /* events turned off due to host reset or driver unloading */
7493 if (ioc->remove_host || ioc->pci_error_recovery)
7494 return;
7495
7496 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
7497
7498 if (unlikely(!mpi_reply)) {
7499 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
7500 ioc->name, __FILE__, __LINE__, __func__);
7501 return;
7502 }
7503
7504 event = le16_to_cpu(mpi_reply->Event);
7505
7506 switch (event) {
7507 /* handle these */
7508 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7509 {
7510 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
7511 (Mpi2EventDataSasBroadcastPrimitive_t *)
7512 mpi_reply->EventData;
7513
7514 if (baen_data->Primitive !=
7515 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
7516 return;
7517
7518 if (ioc->broadcast_aen_busy) {
7519 ioc->broadcast_aen_pending++;
7520 return;
7521 } else
7522 ioc->broadcast_aen_busy = 1;
7523 break;
7524 }
7525
7526 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7527 _scsih_check_topo_delete_events(ioc,
7528 (Mpi2EventDataSasTopologyChangeList_t *)
7529 mpi_reply->EventData);
7530 break;
7531 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7532 _scsih_check_ir_config_unhide_events(ioc,
7533 (Mpi2EventDataIrConfigChangeList_t *)
7534 mpi_reply->EventData);
7535 break;
7536 case MPI2_EVENT_IR_VOLUME:
7537 _scsih_check_volume_delete_events(ioc,
7538 (Mpi2EventDataIrVolume_t *)
7539 mpi_reply->EventData);
7540 break;
7541 case MPI2_EVENT_LOG_ENTRY_ADDED:
7542 {
7543 Mpi2EventDataLogEntryAdded_t *log_entry;
7544 __le32 *log_code;
7545
7546 if (!ioc->is_warpdrive)
7547 break;
7548
7549 log_entry = (Mpi2EventDataLogEntryAdded_t *)
7550 mpi_reply->EventData;
7551 log_code = (__le32 *)log_entry->LogData;
7552
7553 if (le16_to_cpu(log_entry->LogEntryQualifier)
7554 != MPT2_WARPDRIVE_LOGENTRY)
7555 break;
7556
7557 switch (le32_to_cpu(*log_code)) {
7558 case MPT2_WARPDRIVE_LC_SSDT:
7559 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7560 "IO Throttling has occurred in the WarpDrive "
7561 "subsystem. Check WarpDrive documentation for "
7562 "additional details.\n", ioc->name);
7563 break;
7564 case MPT2_WARPDRIVE_LC_SSDLW:
7565 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7566 "Program/Erase Cycles for the WarpDrive subsystem "
7567 "in degraded range. Check WarpDrive documentation "
7568 "for additional details.\n", ioc->name);
7569 break;
7570 case MPT2_WARPDRIVE_LC_SSDLF:
7571 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7572 "There are no Program/Erase Cycles for the "
7573 "WarpDrive subsystem. The storage device will be "
7574 "in read-only mode. Check WarpDrive documentation "
7575 "for additional details.\n", ioc->name);
7576 break;
7577 case MPT2_WARPDRIVE_LC_BRMF:
7578 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7579 "The Backup Rail Monitor has failed on the "
7580 "WarpDrive subsystem. Check WarpDrive "
7581 "documentation for additional details.\n",
7582 ioc->name);
7583 break;
7584 }
7585
7586 break;
7587 }
7588 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7589 case MPI2_EVENT_IR_OPERATION_STATUS:
7590 case MPI2_EVENT_SAS_DISCOVERY:
7591 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7592 case MPI2_EVENT_IR_PHYSICAL_DISK:
7593 break;
7594
7595 default: /* ignore the rest */
7596 return;
7597 }
7598
7599 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
7600 if (!fw_event) {
7601 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7602 ioc->name, __FILE__, __LINE__, __func__);
7603 return;
7604 }
7605 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
7606 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
7607 if (!fw_event->event_data) {
7608 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7609 ioc->name, __FILE__, __LINE__, __func__);
7610 kfree(fw_event);
7611 return;
7612 }
7613
7614 memcpy(fw_event->event_data, mpi_reply->EventData,
7615 sz);
7616 fw_event->ioc = ioc;
7617 fw_event->VF_ID = mpi_reply->VF_ID;
7618 fw_event->VP_ID = mpi_reply->VP_ID;
7619 fw_event->event = event;
7620 _scsih_fw_event_add(ioc, fw_event);
7621 return;
7622}
7623
7624/* shost template */
7625static struct scsi_host_template scsih_driver_template = {
7626 .module = THIS_MODULE,
7627 .name = "Fusion MPT SAS Host",
7628 .proc_name = MPT2SAS_DRIVER_NAME,
7629 .queuecommand = _scsih_qcmd,
7630 .target_alloc = _scsih_target_alloc,
7631 .slave_alloc = _scsih_slave_alloc,
7632 .slave_configure = _scsih_slave_configure,
7633 .target_destroy = _scsih_target_destroy,
7634 .slave_destroy = _scsih_slave_destroy,
7635 .scan_finished = _scsih_scan_finished,
7636 .scan_start = _scsih_scan_start,
7637 .change_queue_depth = _scsih_change_queue_depth,
7638 .change_queue_type = _scsih_change_queue_type,
7639 .eh_abort_handler = _scsih_abort,
7640 .eh_device_reset_handler = _scsih_dev_reset,
7641 .eh_target_reset_handler = _scsih_target_reset,
7642 .eh_host_reset_handler = _scsih_host_reset,
7643 .bios_param = _scsih_bios_param,
7644 .can_queue = 1,
7645 .this_id = -1,
7646 .sg_tablesize = MPT2SAS_SG_DEPTH,
7647 .max_sectors = 32767,
7648 .cmd_per_lun = 7,
7649 .use_clustering = ENABLE_CLUSTERING,
7650 .shost_attrs = mpt2sas_host_attrs,
7651 .sdev_attrs = mpt2sas_dev_attrs,
7652};
7653
7654/**
7655 * _scsih_expander_node_remove - removing expander device from list.
7656 * @ioc: per adapter object
7657 * @sas_expander: the sas_device object
7658 * Context: Calling function should acquire ioc->sas_node_lock.
7659 *
7660 * Removing object and freeing associated memory from the
7661 * ioc->sas_expander_list.
7662 *
7663 * Return nothing.
7664 */
7665static void
7666_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
7667 struct _sas_node *sas_expander)
7668{
7669 struct _sas_port *mpt2sas_port, *next;
7670
7671 /* remove sibling ports attached to this expander */
7672 list_for_each_entry_safe(mpt2sas_port, next,
7673 &sas_expander->sas_port_list, port_list) {
7674 if (ioc->shost_recovery)
7675 return;
7676 if (mpt2sas_port->remote_identify.device_type ==
7677 SAS_END_DEVICE)
7678 mpt2sas_device_remove_by_sas_address(ioc,
7679 mpt2sas_port->remote_identify.sas_address);
7680 else if (mpt2sas_port->remote_identify.device_type ==
7681 SAS_EDGE_EXPANDER_DEVICE ||
7682 mpt2sas_port->remote_identify.device_type ==
7683 SAS_FANOUT_EXPANDER_DEVICE)
7684 mpt2sas_expander_remove(ioc,
7685 mpt2sas_port->remote_identify.sas_address);
7686 }
7687
7688 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
7689 sas_expander->sas_address_parent);
7690
7691 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
7692 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
7693 sas_expander->handle, (unsigned long long)
7694 sas_expander->sas_address);
7695
7696 kfree(sas_expander->phy);
7697 kfree(sas_expander);
7698}
7699
7700/**
7701 * _scsih_ir_shutdown - IR shutdown notification
7702 * @ioc: per adapter object
7703 *
7704 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
7705 * the host system is shutting down.
7706 *
7707 * Return nothing.
7708 */
7709static void
7710_scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
7711{
7712 Mpi2RaidActionRequest_t *mpi_request;
7713 Mpi2RaidActionReply_t *mpi_reply;
7714 u16 smid;
7715
7716 /* is IR firmware build loaded ? */
7717 if (!ioc->ir_firmware)
7718 return;
7719
7720 mutex_lock(&ioc->scsih_cmds.mutex);
7721
7722 if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
7723 printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
7724 ioc->name, __func__);
7725 goto out;
7726 }
7727 ioc->scsih_cmds.status = MPT2_CMD_PENDING;
7728
7729 smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
7730 if (!smid) {
7731 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
7732 ioc->name, __func__);
7733 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7734 goto out;
7735 }
7736
7737 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
7738 ioc->scsih_cmds.smid = smid;
7739 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
7740
7741 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
7742 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
7743
7744 if (!ioc->hide_ir_msg)
7745 printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
7746 init_completion(&ioc->scsih_cmds.done);
7747 mpt2sas_base_put_smid_default(ioc, smid);
7748 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
7749
7750 if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
7751 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
7752 ioc->name, __func__);
7753 goto out;
7754 }
7755
7756 if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
7757 mpi_reply = ioc->scsih_cmds.reply;
7758
7759 if (!ioc->hide_ir_msg)
7760 printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
7761 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7762 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
7763 le32_to_cpu(mpi_reply->IOCLogInfo));
7764 }
7765
7766 out:
7767 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7768 mutex_unlock(&ioc->scsih_cmds.mutex);
7769}
7770
7771/**
7772 * _scsih_shutdown - routine call during system shutdown
7773 * @pdev: PCI device struct
7774 *
7775 * Return nothing.
7776 */
7777static void
7778_scsih_shutdown(struct pci_dev *pdev)
7779{
7780 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7781 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7782 struct workqueue_struct *wq;
7783 unsigned long flags;
7784
7785 ioc->remove_host = 1;
7786 _scsih_fw_event_cleanup_queue(ioc);
7787
7788 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7789 wq = ioc->firmware_event_thread;
7790 ioc->firmware_event_thread = NULL;
7791 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7792 if (wq)
7793 destroy_workqueue(wq);
7794
7795 _scsih_ir_shutdown(ioc);
7796 mpt2sas_base_detach(ioc);
7797}
7798
7799/**
7800 * _scsih_remove - detach and remove add host
7801 * @pdev: PCI device struct
7802 *
7803 * Routine called when unloading the driver.
7804 * Return nothing.
7805 */
7806static void
7807_scsih_remove(struct pci_dev *pdev)
7808{
7809 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7810 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7811 struct _sas_port *mpt2sas_port, *next_port;
7812 struct _raid_device *raid_device, *next;
7813 struct MPT2SAS_TARGET *sas_target_priv_data;
7814 struct workqueue_struct *wq;
7815 unsigned long flags;
7816
7817 ioc->remove_host = 1;
7818 _scsih_fw_event_cleanup_queue(ioc);
7819
7820 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7821 wq = ioc->firmware_event_thread;
7822 ioc->firmware_event_thread = NULL;
7823 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7824 if (wq)
7825 destroy_workqueue(wq);
7826
7827 /* release all the volumes */
7828 _scsih_ir_shutdown(ioc);
7829 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
7830 list) {
7831 if (raid_device->starget) {
7832 sas_target_priv_data =
7833 raid_device->starget->hostdata;
7834 sas_target_priv_data->deleted = 1;
7835 scsi_remove_target(&raid_device->starget->dev);
7836 }
7837 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
7838 "(0x%016llx)\n", ioc->name, raid_device->handle,
7839 (unsigned long long) raid_device->wwid);
7840 _scsih_raid_device_remove(ioc, raid_device);
7841 }
7842
7843 /* free ports attached to the sas_host */
7844 list_for_each_entry_safe(mpt2sas_port, next_port,
7845 &ioc->sas_hba.sas_port_list, port_list) {
7846 if (mpt2sas_port->remote_identify.device_type ==
7847 SAS_END_DEVICE)
7848 mpt2sas_device_remove_by_sas_address(ioc,
7849 mpt2sas_port->remote_identify.sas_address);
7850 else if (mpt2sas_port->remote_identify.device_type ==
7851 SAS_EDGE_EXPANDER_DEVICE ||
7852 mpt2sas_port->remote_identify.device_type ==
7853 SAS_FANOUT_EXPANDER_DEVICE)
7854 mpt2sas_expander_remove(ioc,
7855 mpt2sas_port->remote_identify.sas_address);
7856 }
7857
7858 /* free phys attached to the sas_host */
7859 if (ioc->sas_hba.num_phys) {
7860 kfree(ioc->sas_hba.phy);
7861 ioc->sas_hba.phy = NULL;
7862 ioc->sas_hba.num_phys = 0;
7863 }
7864
7865 sas_remove_host(shost);
7866 mpt2sas_base_detach(ioc);
7867 list_del(&ioc->list);
7868 scsi_remove_host(shost);
7869 scsi_host_put(shost);
7870}
7871
7872/**
7873 * _scsih_probe_boot_devices - reports 1st device
7874 * @ioc: per adapter object
7875 *
7876 * If specified in bios page 2, this routine reports the 1st
7877 * device scsi-ml or sas transport for persistent boot device
7878 * purposes. Please refer to function _scsih_determine_boot_device()
7879 */
7880static void
7881_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
7882{
7883 u8 is_raid;
7884 void *device;
7885 struct _sas_device *sas_device;
7886 struct _raid_device *raid_device;
7887 u16 handle;
7888 u64 sas_address_parent;
7889 u64 sas_address;
7890 unsigned long flags;
7891 int rc;
7892
7893 /* no Bios, return immediately */
7894 if (!ioc->bios_pg3.BiosVersion)
7895 return;
7896
7897 device = NULL;
7898 is_raid = 0;
7899 if (ioc->req_boot_device.device) {
7900 device = ioc->req_boot_device.device;
7901 is_raid = ioc->req_boot_device.is_raid;
7902 } else if (ioc->req_alt_boot_device.device) {
7903 device = ioc->req_alt_boot_device.device;
7904 is_raid = ioc->req_alt_boot_device.is_raid;
7905 } else if (ioc->current_boot_device.device) {
7906 device = ioc->current_boot_device.device;
7907 is_raid = ioc->current_boot_device.is_raid;
7908 }
7909
7910 if (!device)
7911 return;
7912
7913 if (is_raid) {
7914 raid_device = device;
7915 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7916 raid_device->id, 0);
7917 if (rc)
7918 _scsih_raid_device_remove(ioc, raid_device);
7919 } else {
7920 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7921 sas_device = device;
7922 handle = sas_device->handle;
7923 sas_address_parent = sas_device->sas_address_parent;
7924 sas_address = sas_device->sas_address;
7925 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7926 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7927
7928 if (ioc->hide_drives)
7929 return;
7930 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7931 sas_device->sas_address_parent)) {
7932 _scsih_sas_device_remove(ioc, sas_device);
7933 } else if (!sas_device->starget) {
7934 if (!ioc->is_driver_loading) {
7935 mpt2sas_transport_port_remove(ioc,
7936 sas_address,
7937 sas_address_parent);
7938 _scsih_sas_device_remove(ioc, sas_device);
7939 }
7940 }
7941 }
7942}
7943
7944/**
7945 * _scsih_probe_raid - reporting raid volumes to scsi-ml
7946 * @ioc: per adapter object
7947 *
7948 * Called during initial loading of the driver.
7949 */
7950static void
7951_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
7952{
7953 struct _raid_device *raid_device, *raid_next;
7954 int rc;
7955
7956 list_for_each_entry_safe(raid_device, raid_next,
7957 &ioc->raid_device_list, list) {
7958 if (raid_device->starget)
7959 continue;
7960 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7961 raid_device->id, 0);
7962 if (rc)
7963 _scsih_raid_device_remove(ioc, raid_device);
7964 }
7965}
7966
7967/**
7968 * _scsih_probe_sas - reporting sas devices to sas transport
7969 * @ioc: per adapter object
7970 *
7971 * Called during initial loading of the driver.
7972 */
7973static void
7974_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
7975{
7976 struct _sas_device *sas_device, *next;
7977 unsigned long flags;
7978
7979 /* SAS Device List */
7980 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7981 list) {
7982
7983 if (ioc->hide_drives)
7984 continue;
7985
7986 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7987 sas_device->sas_address_parent)) {
7988 list_del(&sas_device->list);
7989 kfree(sas_device);
7990 continue;
7991 } else if (!sas_device->starget) {
7992 if (!ioc->is_driver_loading) {
7993 mpt2sas_transport_port_remove(ioc,
7994 sas_device->sas_address,
7995 sas_device->sas_address_parent);
7996 list_del(&sas_device->list);
7997 kfree(sas_device);
7998 continue;
7999 }
8000 }
8001 spin_lock_irqsave(&ioc->sas_device_lock, flags);
8002 list_move_tail(&sas_device->list, &ioc->sas_device_list);
8003 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
8004 }
8005}
8006
8007/**
8008 * _scsih_probe_devices - probing for devices
8009 * @ioc: per adapter object
8010 *
8011 * Called during initial loading of the driver.
8012 */
8013static void
8014_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
8015{
8016 u16 volume_mapping_flags;
8017
8018 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
8019 return; /* return when IOC doesn't support initiator mode */
8020
8021 _scsih_probe_boot_devices(ioc);
8022
8023 if (ioc->ir_firmware) {
8024 volume_mapping_flags =
8025 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
8026 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
8027 if (volume_mapping_flags ==
8028 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
8029 _scsih_probe_raid(ioc);
8030 _scsih_probe_sas(ioc);
8031 } else {
8032 _scsih_probe_sas(ioc);
8033 _scsih_probe_raid(ioc);
8034 }
8035 } else
8036 _scsih_probe_sas(ioc);
8037}
8038
8039
8040/**
8041 * _scsih_scan_start - scsi lld callback for .scan_start
8042 * @shost: SCSI host pointer
8043 *
8044 * The shost has the ability to discover targets on its own instead
8045 * of scanning the entire bus. In our implemention, we will kick off
8046 * firmware discovery.
8047 */
8048static void
8049_scsih_scan_start(struct Scsi_Host *shost)
8050{
8051 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8052 int rc;
8053
8054 if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
8055 mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable);
8056
8057 if (disable_discovery > 0)
8058 return;
8059
8060 ioc->start_scan = 1;
8061 rc = mpt2sas_port_enable(ioc);
8062
8063 if (rc != 0)
8064 printk(MPT2SAS_INFO_FMT "port enable: FAILED\n", ioc->name);
8065}
8066
8067/**
8068 * _scsih_scan_finished - scsi lld callback for .scan_finished
8069 * @shost: SCSI host pointer
8070 * @time: elapsed time of the scan in jiffies
8071 *
8072 * This function will be called periodically until it returns 1 with the
8073 * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
8074 * we wait for firmware discovery to complete, then return 1.
8075 */
8076static int
8077_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
8078{
8079 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8080
8081 if (disable_discovery > 0) {
8082 ioc->is_driver_loading = 0;
8083 ioc->wait_for_discovery_to_complete = 0;
8084 return 1;
8085 }
8086
8087 if (time >= (300 * HZ)) {
8088 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
8089 printk(MPT2SAS_INFO_FMT "port enable: FAILED with timeout "
8090 "(timeout=300s)\n", ioc->name);
8091 ioc->is_driver_loading = 0;
8092 return 1;
8093 }
8094
8095 if (ioc->start_scan)
8096 return 0;
8097
8098 if (ioc->start_scan_failed) {
8099 printk(MPT2SAS_INFO_FMT "port enable: FAILED with "
8100 "(ioc_status=0x%08x)\n", ioc->name, ioc->start_scan_failed);
8101 ioc->is_driver_loading = 0;
8102 ioc->wait_for_discovery_to_complete = 0;
8103 ioc->remove_host = 1;
8104 return 1;
8105 }
8106
8107 printk(MPT2SAS_INFO_FMT "port enable: SUCCESS\n", ioc->name);
8108 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
8109
8110 if (ioc->wait_for_discovery_to_complete) {
8111 ioc->wait_for_discovery_to_complete = 0;
8112 _scsih_probe_devices(ioc);
8113 }
8114 mpt2sas_base_start_watchdog(ioc);
8115 ioc->is_driver_loading = 0;
8116 return 1;
8117}
8118
8119
8120/**
8121 * _scsih_probe - attach and add scsi host
8122 * @pdev: PCI device struct
8123 * @id: pci device id
8124 *
8125 * Returns 0 success, anything else error.
8126 */
8127static int
8128_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
8129{
8130 struct MPT2SAS_ADAPTER *ioc;
8131 struct Scsi_Host *shost;
8132
8133 shost = scsi_host_alloc(&scsih_driver_template,
8134 sizeof(struct MPT2SAS_ADAPTER));
8135 if (!shost)
8136 return -ENODEV;
8137
8138 /* init local params */
8139 ioc = shost_priv(shost);
8140 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
8141 INIT_LIST_HEAD(&ioc->list);
8142 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
8143 ioc->shost = shost;
8144 ioc->id = mpt_ids++;
8145 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
8146 ioc->pdev = pdev;
8147 if (id->device == MPI2_MFGPAGE_DEVID_SSS6200) {
8148 ioc->is_warpdrive = 1;
8149 ioc->hide_ir_msg = 1;
8150 } else
8151 ioc->mfg_pg10_hide_flag = MFG_PAGE10_EXPOSE_ALL_DISKS;
8152 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
8153 ioc->tm_cb_idx = tm_cb_idx;
8154 ioc->ctl_cb_idx = ctl_cb_idx;
8155 ioc->base_cb_idx = base_cb_idx;
8156 ioc->port_enable_cb_idx = port_enable_cb_idx;
8157 ioc->transport_cb_idx = transport_cb_idx;
8158 ioc->scsih_cb_idx = scsih_cb_idx;
8159 ioc->config_cb_idx = config_cb_idx;
8160 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
8161 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
8162 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
8163 ioc->logging_level = logging_level;
8164 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
8165 /* misc semaphores and spin locks */
8166 mutex_init(&ioc->reset_in_progress_mutex);
8167 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
8168 spin_lock_init(&ioc->scsi_lookup_lock);
8169 spin_lock_init(&ioc->sas_device_lock);
8170 spin_lock_init(&ioc->sas_node_lock);
8171 spin_lock_init(&ioc->fw_event_lock);
8172 spin_lock_init(&ioc->raid_device_lock);
8173
8174 INIT_LIST_HEAD(&ioc->sas_device_list);
8175 INIT_LIST_HEAD(&ioc->sas_device_init_list);
8176 INIT_LIST_HEAD(&ioc->sas_expander_list);
8177 INIT_LIST_HEAD(&ioc->fw_event_list);
8178 INIT_LIST_HEAD(&ioc->raid_device_list);
8179 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
8180 INIT_LIST_HEAD(&ioc->delayed_tr_list);
8181 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
8182 INIT_LIST_HEAD(&ioc->reply_queue_list);
8183
8184 /* init shost parameters */
8185 shost->max_cmd_len = 32;
8186 shost->max_lun = max_lun;
8187 shost->transportt = mpt2sas_transport_template;
8188 shost->unique_id = ioc->id;
8189
8190 if (max_sectors != 0xFFFF) {
8191 if (max_sectors < 64) {
8192 shost->max_sectors = 64;
8193 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
8194 "for max_sectors, range is 64 to 32767. Assigning "
8195 "value of 64.\n", ioc->name, max_sectors);
8196 } else if (max_sectors > 32767) {
8197 shost->max_sectors = 32767;
8198 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
8199 "for max_sectors, range is 64 to 8192. Assigning "
8200 "default value of 32767.\n", ioc->name,
8201 max_sectors);
8202 } else {
8203 shost->max_sectors = max_sectors & 0xFFFE;
8204 printk(MPT2SAS_INFO_FMT "The max_sectors value is "
8205 "set to %d\n", ioc->name, shost->max_sectors);
8206 }
8207 }
8208
8209 if ((scsi_add_host(shost, &pdev->dev))) {
8210 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8211 ioc->name, __FILE__, __LINE__, __func__);
8212 list_del(&ioc->list);
8213 goto out_add_shost_fail;
8214 }
8215
8216 /* register EEDP capabilities with SCSI layer */
8217 if (prot_mask)
8218 scsi_host_set_prot(shost, prot_mask);
8219 else
8220 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
8221 | SHOST_DIF_TYPE2_PROTECTION
8222 | SHOST_DIF_TYPE3_PROTECTION);
8223
8224 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
8225
8226 /* event thread */
8227 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
8228 "fw_event%d", ioc->id);
8229 ioc->firmware_event_thread = create_singlethread_workqueue(
8230 ioc->firmware_event_name);
8231 if (!ioc->firmware_event_thread) {
8232 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8233 ioc->name, __FILE__, __LINE__, __func__);
8234 goto out_thread_fail;
8235 }
8236
8237 ioc->is_driver_loading = 1;
8238 if ((mpt2sas_base_attach(ioc))) {
8239 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8240 ioc->name, __FILE__, __LINE__, __func__);
8241 goto out_attach_fail;
8242 }
8243
8244 if (ioc->is_warpdrive) {
8245 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS)
8246 ioc->hide_drives = 0;
8247 else if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_HIDE_ALL_DISKS)
8248 ioc->hide_drives = 1;
8249 else {
8250 if (_scsih_get_num_volumes(ioc))
8251 ioc->hide_drives = 1;
8252 else
8253 ioc->hide_drives = 0;
8254 }
8255 } else
8256 ioc->hide_drives = 0;
8257 scsi_scan_host(shost);
8258
8259 return 0;
8260
8261 out_attach_fail:
8262 destroy_workqueue(ioc->firmware_event_thread);
8263 out_thread_fail:
8264 list_del(&ioc->list);
8265 scsi_remove_host(shost);
8266 out_add_shost_fail:
8267 scsi_host_put(shost);
8268 return -ENODEV;
8269}
8270
8271#ifdef CONFIG_PM
8272/**
8273 * _scsih_suspend - power management suspend main entry point
8274 * @pdev: PCI device struct
8275 * @state: PM state change to (usually PCI_D3)
8276 *
8277 * Returns 0 success, anything else error.
8278 */
8279static int
8280_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
8281{
8282 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8283 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8284 pci_power_t device_state;
8285
8286 mpt2sas_base_stop_watchdog(ioc);
8287 scsi_block_requests(shost);
8288 _scsih_ir_shutdown(ioc);
8289 device_state = pci_choose_state(pdev, state);
8290 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
8291 "operating state [D%d]\n", ioc->name, pdev,
8292 pci_name(pdev), device_state);
8293
8294 mpt2sas_base_free_resources(ioc);
8295 pci_save_state(pdev);
8296 pci_set_power_state(pdev, device_state);
8297 return 0;
8298}
8299
8300/**
8301 * _scsih_resume - power management resume main entry point
8302 * @pdev: PCI device struct
8303 *
8304 * Returns 0 success, anything else error.
8305 */
8306static int
8307_scsih_resume(struct pci_dev *pdev)
8308{
8309 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8310 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8311 pci_power_t device_state = pdev->current_state;
8312 int r;
8313
8314 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
8315 "operating state [D%d]\n", ioc->name, pdev,
8316 pci_name(pdev), device_state);
8317
8318 pci_set_power_state(pdev, PCI_D0);
8319 pci_enable_wake(pdev, PCI_D0, 0);
8320 pci_restore_state(pdev);
8321 ioc->pdev = pdev;
8322 r = mpt2sas_base_map_resources(ioc);
8323 if (r)
8324 return r;
8325
8326 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
8327 scsi_unblock_requests(shost);
8328 mpt2sas_base_start_watchdog(ioc);
8329 return 0;
8330}
8331#endif /* CONFIG_PM */
8332
8333/**
8334 * _scsih_pci_error_detected - Called when a PCI error is detected.
8335 * @pdev: PCI device struct
8336 * @state: PCI channel state
8337 *
8338 * Description: Called when a PCI error is detected.
8339 *
8340 * Return value:
8341 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8342 */
8343static pci_ers_result_t
8344_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8345{
8346 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8347 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8348
8349 printk(MPT2SAS_INFO_FMT "PCI error: detected callback, state(%d)!!\n",
8350 ioc->name, state);
8351
8352 switch (state) {
8353 case pci_channel_io_normal:
8354 return PCI_ERS_RESULT_CAN_RECOVER;
8355 case pci_channel_io_frozen:
8356 /* Fatal error, prepare for slot reset */
8357 ioc->pci_error_recovery = 1;
8358 scsi_block_requests(ioc->shost);
8359 mpt2sas_base_stop_watchdog(ioc);
8360 mpt2sas_base_free_resources(ioc);
8361 return PCI_ERS_RESULT_NEED_RESET;
8362 case pci_channel_io_perm_failure:
8363 /* Permanent error, prepare for device removal */
8364 ioc->pci_error_recovery = 1;
8365 mpt2sas_base_stop_watchdog(ioc);
8366 _scsih_flush_running_cmds(ioc);
8367 return PCI_ERS_RESULT_DISCONNECT;
8368 }
8369 return PCI_ERS_RESULT_NEED_RESET;
8370}
8371
8372/**
8373 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
8374 * @pdev: PCI device struct
8375 *
8376 * Description: This routine is called by the pci error recovery
8377 * code after the PCI slot has been reset, just before we
8378 * should resume normal operations.
8379 */
8380static pci_ers_result_t
8381_scsih_pci_slot_reset(struct pci_dev *pdev)
8382{
8383 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8384 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8385 int rc;
8386
8387 printk(MPT2SAS_INFO_FMT "PCI error: slot reset callback!!\n",
8388 ioc->name);
8389
8390 ioc->pci_error_recovery = 0;
8391 ioc->pdev = pdev;
8392 pci_restore_state(pdev);
8393 rc = mpt2sas_base_map_resources(ioc);
8394 if (rc)
8395 return PCI_ERS_RESULT_DISCONNECT;
8396
8397
8398 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8399 FORCE_BIG_HAMMER);
8400
8401 printk(MPT2SAS_WARN_FMT "hard reset: %s\n", ioc->name,
8402 (rc == 0) ? "success" : "failed");
8403
8404 if (!rc)
8405 return PCI_ERS_RESULT_RECOVERED;
8406 else
8407 return PCI_ERS_RESULT_DISCONNECT;
8408}
8409
8410/**
8411 * _scsih_pci_resume() - resume normal ops after PCI reset
8412 * @pdev: pointer to PCI device
8413 *
8414 * Called when the error recovery driver tells us that its
8415 * OK to resume normal operation. Use completion to allow
8416 * halted scsi ops to resume.
8417 */
8418static void
8419_scsih_pci_resume(struct pci_dev *pdev)
8420{
8421 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8422 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8423
8424 printk(MPT2SAS_INFO_FMT "PCI error: resume callback!!\n", ioc->name);
8425
8426 pci_cleanup_aer_uncorrect_error_status(pdev);
8427 mpt2sas_base_start_watchdog(ioc);
8428 scsi_unblock_requests(ioc->shost);
8429}
8430
8431/**
8432 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
8433 * @pdev: pointer to PCI device
8434 */
8435static pci_ers_result_t
8436_scsih_pci_mmio_enabled(struct pci_dev *pdev)
8437{
8438 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8439 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8440
8441 printk(MPT2SAS_INFO_FMT "PCI error: mmio enabled callback!!\n",
8442 ioc->name);
8443
8444 /* TODO - dump whatever for debugging purposes */
8445
8446 /* Request a slot reset. */
8447 return PCI_ERS_RESULT_NEED_RESET;
8448}
8449
8450static const struct pci_error_handlers _scsih_err_handler = {
8451 .error_detected = _scsih_pci_error_detected,
8452 .mmio_enabled = _scsih_pci_mmio_enabled,
8453 .slot_reset = _scsih_pci_slot_reset,
8454 .resume = _scsih_pci_resume,
8455};
8456
8457static struct pci_driver scsih_driver = {
8458 .name = MPT2SAS_DRIVER_NAME,
8459 .id_table = scsih_pci_table,
8460 .probe = _scsih_probe,
8461 .remove = _scsih_remove,
8462 .shutdown = _scsih_shutdown,
8463 .err_handler = &_scsih_err_handler,
8464#ifdef CONFIG_PM
8465 .suspend = _scsih_suspend,
8466 .resume = _scsih_resume,
8467#endif
8468};
8469
8470/* raid transport support */
8471static struct raid_function_template mpt2sas_raid_functions = {
8472 .cookie = &scsih_driver_template,
8473 .is_raid = _scsih_is_raid,
8474 .get_resync = _scsih_get_resync,
8475 .get_state = _scsih_get_state,
8476};
8477
8478/**
8479 * _scsih_init - main entry point for this driver.
8480 *
8481 * Returns 0 success, anything else error.
8482 */
8483static int __init
8484_scsih_init(void)
8485{
8486 int error;
8487
8488 mpt_ids = 0;
8489 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
8490 MPT2SAS_DRIVER_VERSION);
8491
8492 mpt2sas_transport_template =
8493 sas_attach_transport(&mpt2sas_transport_functions);
8494 if (!mpt2sas_transport_template)
8495 return -ENODEV;
8496 /* raid transport support */
8497 mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
8498 if (!mpt2sas_raid_template) {
8499 sas_release_transport(mpt2sas_transport_template);
8500 return -ENODEV;
8501 }
8502
8503 mpt2sas_base_initialize_callback_handler();
8504
8505 /* queuecommand callback hander */
8506 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
8507
8508 /* task management callback handler */
8509 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
8510
8511 /* base internal commands callback handler */
8512 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
8513 port_enable_cb_idx = mpt2sas_base_register_callback_handler(
8514 mpt2sas_port_enable_done);
8515
8516 /* transport internal commands callback handler */
8517 transport_cb_idx = mpt2sas_base_register_callback_handler(
8518 mpt2sas_transport_done);
8519
8520 /* scsih internal commands callback handler */
8521 scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);
8522
8523 /* configuration page API internal commands callback handler */
8524 config_cb_idx = mpt2sas_base_register_callback_handler(
8525 mpt2sas_config_done);
8526
8527 /* ctl module callback handler */
8528 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
8529
8530 tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
8531 _scsih_tm_tr_complete);
8532
8533 tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
8534 _scsih_tm_volume_tr_complete);
8535
8536 tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
8537 _scsih_sas_control_complete);
8538
8539 mpt2sas_ctl_init();
8540
8541 error = pci_register_driver(&scsih_driver);
8542 if (error) {
8543 /* raid transport support */
8544 raid_class_release(mpt2sas_raid_template);
8545 sas_release_transport(mpt2sas_transport_template);
8546 }
8547
8548 return error;
8549}
8550
8551/**
8552 * _scsih_exit - exit point for this driver (when it is a module).
8553 *
8554 * Returns 0 success, anything else error.
8555 */
8556static void __exit
8557_scsih_exit(void)
8558{
8559 printk(KERN_INFO "mpt2sas version %s unloading\n",
8560 MPT2SAS_DRIVER_VERSION);
8561
8562 pci_unregister_driver(&scsih_driver);
8563
8564 mpt2sas_ctl_exit();
8565
8566 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
8567 mpt2sas_base_release_callback_handler(tm_cb_idx);
8568 mpt2sas_base_release_callback_handler(base_cb_idx);
8569 mpt2sas_base_release_callback_handler(port_enable_cb_idx);
8570 mpt2sas_base_release_callback_handler(transport_cb_idx);
8571 mpt2sas_base_release_callback_handler(scsih_cb_idx);
8572 mpt2sas_base_release_callback_handler(config_cb_idx);
8573 mpt2sas_base_release_callback_handler(ctl_cb_idx);
8574
8575 mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
8576 mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
8577 mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
8578
8579 /* raid transport support */
8580 raid_class_release(mpt2sas_raid_template);
8581 sas_release_transport(mpt2sas_transport_template);
8582
8583}
8584
8585module_init(_scsih_init);
8586module_exit(_scsih_exit);