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Drivers: video: remove __dev* attributes.
[linux-2.6-block.git] / drivers / scsi / mpt2sas / mpt2sas_scsih.c
CommitLineData
635374e7
EM		 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
433d7176 5 * Copyright (C) 2007-2012 LSI Corporation
635374e7
EM		 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
635374e7
EM		 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>
ef7c80c1 54#include <linux/aer.h>
f7c95ef0 55#include <linux/raid_class.h>
5a0e3ad6 56#include <linux/slab.h>
635374e7
EM		 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
f3eedd69
KD		 72static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid);
73
921cd802 74static void _scsih_scan_start(struct Scsi_Host *shost);
75static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
76
635374e7 77/* global parameters */
ba33fadf 78LIST_HEAD(mpt2sas_ioc_list);
635374e7
EM		 79
80/* local parameters */
635374e7
EM		 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;
921cd802 85static u8 port_enable_cb_idx = -1;
635374e7 86static u8 transport_cb_idx = -1;
744090d3 87static u8 scsih_cb_idx = -1;
635374e7
EM		 88static u8 config_cb_idx = -1;
89static int mpt_ids;
90
77e63ed4 91static u8 tm_tr_cb_idx = -1 ;
f3eedd69 92static u8 tm_tr_volume_cb_idx = -1 ;
77e63ed4
KD		 93static u8 tm_sas_control_cb_idx = -1;
94
635374e7 95/* command line options */
ba33fadf 96static u32 logging_level;
635374e7
EM		 97MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
98 "(default=0)");
99
a3e1e55e
KD		 100static ushort max_sectors = 0xFFFF;
101module_param(max_sectors, ushort, 0);
9ac49d3a 102MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
a3e1e55e 103
635374e7
EM		 104/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
105#define MPT2SAS_MAX_LUN (16895)
106static int max_lun = MPT2SAS_MAX_LUN;
107module_param(max_lun, int, 0);
108MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
109
921cd802 110/* diag_buffer_enable is bitwise
111 * bit 0 set = TRACE
112 * bit 1 set = SNAPSHOT
113 * bit 2 set = EXTENDED
114 *
115 * Either bit can be set, or both
116 */
117static int diag_buffer_enable = -1;
118module_param(diag_buffer_enable, int, 0);
119MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
120 "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
121
4b193175 122static int disable_discovery = -1;
123module_param(disable_discovery, int, 0);
124MODULE_PARM_DESC(disable_discovery, " disable discovery ");
125
5e95e731
MP		 126/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
127static int prot_mask = 0;
128module_param(prot_mask, int, 0);
129MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
130
635374e7
EM		 131/**
132 * struct sense_info - common structure for obtaining sense keys
133 * @skey: sense key
134 * @asc: additional sense code
135 * @ascq: additional sense code qualifier
136 */
137struct sense_info {
138 u8 skey;
139 u8 asc;
140 u8 ascq;
141};
142
143
3ace8e05 144#define MPT2SAS_TURN_ON_FAULT_LED (0xFFFC)
921cd802 145#define MPT2SAS_PORT_ENABLE_COMPLETE (0xFFFD)
146#define MPT2SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
635374e7
EM		 147/**
148 * struct fw_event_work - firmware event struct
149 * @list: link list framework
150 * @work: work object (ioc->fault_reset_work_q)
f1c35e6a 151 * @cancel_pending_work: flag set during reset handling
635374e7 152 * @ioc: per adapter object
3ace8e05 153 * @device_handle: device handle
635374e7 154 * @VF_ID: virtual function id
7b936b02 155 * @VP_ID: virtual port id
635374e7
EM		 156 * @ignore: flag meaning this event has been marked to ignore
157 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
158 * @event_data: reply event data payload follows
159 *
160 * This object stored on ioc->fw_event_list.
161 */
162struct fw_event_work {
163 struct list_head list;
f1c35e6a
KD		 164 u8 cancel_pending_work;
165 struct delayed_work delayed_work;
635374e7 166 struct MPT2SAS_ADAPTER *ioc;
3ace8e05 167 u16 device_handle;
635374e7 168 u8 VF_ID;
7b936b02 169 u8 VP_ID;
635374e7
EM		 170 u8 ignore;
171 u16 event;
172 void *event_data;
173};
174
f7c95ef0
KD		 175/* raid transport support */
176static struct raid_template *mpt2sas_raid_template;
177
635374e7
EM		 178/**
179 * struct _scsi_io_transfer - scsi io transfer
180 * @handle: sas device handle (assigned by firmware)
181 * @is_raid: flag set for hidden raid components
182 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
183 * @data_length: data transfer length
184 * @data_dma: dma pointer to data
185 * @sense: sense data
186 * @lun: lun number
187 * @cdb_length: cdb length
188 * @cdb: cdb contents
635374e7 189 * @timeout: timeout for this command
7b936b02
KD		 190 * @VF_ID: virtual function id
191 * @VP_ID: virtual port id
192 * @valid_reply: flag set for reply message
635374e7
EM		 193 * @sense_length: sense length
194 * @ioc_status: ioc status
195 * @scsi_state: scsi state
196 * @scsi_status: scsi staus
197 * @log_info: log information
198 * @transfer_length: data length transfer when there is a reply message
199 *
200 * Used for sending internal scsi commands to devices within this module.
201 * Refer to _scsi_send_scsi_io().
202 */
203struct _scsi_io_transfer {
204 u16 handle;
205 u8 is_raid;
206 enum dma_data_direction dir;
207 u32 data_length;
208 dma_addr_t data_dma;
209 u8 sense[SCSI_SENSE_BUFFERSIZE];
210 u32 lun;
211 u8 cdb_length;
212 u8 cdb[32];
213 u8 timeout;
7b936b02
KD		 214 u8 VF_ID;
215 u8 VP_ID;
635374e7
EM		 216 u8 valid_reply;
217 /* the following bits are only valid when 'valid_reply = 1' */
218 u32 sense_length;
219 u16 ioc_status;
220 u8 scsi_state;
221 u8 scsi_status;
222 u32 log_info;
223 u32 transfer_length;
224};
225
226/*
227 * The pci device ids are defined in mpi/mpi2_cnfg.h.
228 */
229static struct pci_device_id scsih_pci_table[] = {
230 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
231 PCI_ANY_ID, PCI_ANY_ID },
232 /* Falcon ~ 2008*/
233 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
234 PCI_ANY_ID, PCI_ANY_ID },
235 /* Liberator ~ 2108 */
236 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
237 PCI_ANY_ID, PCI_ANY_ID },
238 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
239 PCI_ANY_ID, PCI_ANY_ID },
240 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
241 PCI_ANY_ID, PCI_ANY_ID },
db27136a 242 /* Meteor ~ 2116 */
635374e7
EM		 243 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
244 PCI_ANY_ID, PCI_ANY_ID },
245 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
246 PCI_ANY_ID, PCI_ANY_ID },
db27136a
KD		 247 /* Thunderbolt ~ 2208 */
248 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
249 PCI_ANY_ID, PCI_ANY_ID },
250 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
251 PCI_ANY_ID, PCI_ANY_ID },
252 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
253 PCI_ANY_ID, PCI_ANY_ID },
254 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
255 PCI_ANY_ID, PCI_ANY_ID },
256 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
257 PCI_ANY_ID, PCI_ANY_ID },
258 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
259 PCI_ANY_ID, PCI_ANY_ID },
203d65b1
KD		 260 /* Mustang ~ 2308 */
261 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
db27136a 262 PCI_ANY_ID, PCI_ANY_ID },
203d65b1
KD		 263 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
264 PCI_ANY_ID, PCI_ANY_ID },
265 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
db27136a 266 PCI_ANY_ID, PCI_ANY_ID },
0bdccdb0
KD		 267 /* SSS6200 */
268 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
269 PCI_ANY_ID, PCI_ANY_ID },
635374e7
EM		 270 {0} /* Terminating entry */
271};
272MODULE_DEVICE_TABLE(pci, scsih_pci_table);
273
274/**
d5d135b3 275 * _scsih_set_debug_level - global setting of ioc->logging_level.
635374e7
EM		 276 *
277 * Note: The logging levels are defined in mpt2sas_debug.h.
278 */
279static int
d5d135b3 280_scsih_set_debug_level(const char *val, struct kernel_param *kp)
635374e7
EM		 281{
282 int ret = param_set_int(val, kp);
283 struct MPT2SAS_ADAPTER *ioc;
284
285 if (ret)
286 return ret;
287
288 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
ba33fadf 289 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
635374e7
EM		 290 ioc->logging_level = logging_level;
291 return 0;
292}
d5d135b3 293module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
635374e7
EM		 294 &logging_level, 0644);
295
296/**
297 * _scsih_srch_boot_sas_address - search based on sas_address
298 * @sas_address: sas address
299 * @boot_device: boot device object from bios page 2
300 *
301 * Returns 1 when there's a match, 0 means no match.
302 */
303static inline int
304_scsih_srch_boot_sas_address(u64 sas_address,
305 Mpi2BootDeviceSasWwid_t *boot_device)
306{
307 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
308}
309
310/**
311 * _scsih_srch_boot_device_name - search based on device name
312 * @device_name: device name specified in INDENTIFY fram
313 * @boot_device: boot device object from bios page 2
314 *
315 * Returns 1 when there's a match, 0 means no match.
316 */
317static inline int
318_scsih_srch_boot_device_name(u64 device_name,
319 Mpi2BootDeviceDeviceName_t *boot_device)
320{
321 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
322}
323
324/**
325 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
326 * @enclosure_logical_id: enclosure logical id
327 * @slot_number: slot number
328 * @boot_device: boot device object from bios page 2
329 *
330 * Returns 1 when there's a match, 0 means no match.
331 */
332static inline int
333_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
334 Mpi2BootDeviceEnclosureSlot_t *boot_device)
335{
336 return (enclosure_logical_id == le64_to_cpu(boot_device->
337 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
338 SlotNumber)) ? 1 : 0;
339}
340
341/**
342 * _scsih_is_boot_device - search for matching boot device.
343 * @sas_address: sas address
344 * @device_name: device name specified in INDENTIFY fram
345 * @enclosure_logical_id: enclosure logical id
346 * @slot_number: slot number
347 * @form: specifies boot device form
348 * @boot_device: boot device object from bios page 2
349 *
350 * Returns 1 when there's a match, 0 means no match.
351 */
352static int
353_scsih_is_boot_device(u64 sas_address, u64 device_name,
354 u64 enclosure_logical_id, u16 slot, u8 form,
355 Mpi2BiosPage2BootDevice_t *boot_device)
356{
357 int rc = 0;
358
359 switch (form) {
360 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
361 if (!sas_address)
362 break;
363 rc = _scsih_srch_boot_sas_address(
364 sas_address, &boot_device->SasWwid);
365 break;
366 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
367 if (!enclosure_logical_id)
368 break;
369 rc = _scsih_srch_boot_encl_slot(
370 enclosure_logical_id,
371 slot, &boot_device->EnclosureSlot);
372 break;
373 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
374 if (!device_name)
375 break;
376 rc = _scsih_srch_boot_device_name(
377 device_name, &boot_device->DeviceName);
378 break;
379 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
380 break;
381 }
382
383 return rc;
384}
385
c5e039be
KD		 386/**
387 * _scsih_get_sas_address - set the sas_address for given device handle
388 * @handle: device handle
389 * @sas_address: sas address
390 *
391 * Returns 0 success, non-zero when failure
392 */
393static int
394_scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
395 u64 *sas_address)
396{
397 Mpi2SasDevicePage0_t sas_device_pg0;
398 Mpi2ConfigReply_t mpi_reply;
399 u32 ioc_status;
24f09b59 400 *sas_address = 0;
c5e039be
KD		 401
402 if (handle <= ioc->sas_hba.num_phys) {
403 *sas_address = ioc->sas_hba.sas_address;
404 return 0;
24f09b59 405 }
c5e039be
KD		 406
407 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
408 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
24f09b59 409 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
410 __FILE__, __LINE__, __func__);
c5e039be
KD		 411 return -ENXIO;
412 }
413
24f09b59 414 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
415 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
416 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
417 return 0;
c5e039be
KD		 418 }
419
24f09b59 420 /* we hit this becuase the given parent handle doesn't exist */
421 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
422 return -ENXIO;
423 /* else error case */
424 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x), "
425 "failure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
426 __FILE__, __LINE__, __func__);
427 return -EIO;
c5e039be
KD		 428}
429
635374e7
EM		 430/**
431 * _scsih_determine_boot_device - determine boot device.
432 * @ioc: per adapter object
433 * @device: either sas_device or raid_device object
434 * @is_raid: [flag] 1 = raid object, 0 = sas object
435 *
436 * Determines whether this device should be first reported device to
25985edc 437 * to scsi-ml or sas transport, this purpose is for persistent boot device.
635374e7
EM		 438 * There are primary, alternate, and current entries in bios page 2. The order
439 * priority is primary, alternate, then current. This routine saves
440 * the corresponding device object and is_raid flag in the ioc object.
441 * The saved data to be used later in _scsih_probe_boot_devices().
442 */
443static void
444_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
445 void *device, u8 is_raid)
446{
447 struct _sas_device *sas_device;
448 struct _raid_device *raid_device;
449 u64 sas_address;
450 u64 device_name;
451 u64 enclosure_logical_id;
452 u16 slot;
453
454 /* only process this function when driver loads */
921cd802 455 if (!ioc->is_driver_loading)
456 return;
457
458 /* no Bios, return immediately */
459 if (!ioc->bios_pg3.BiosVersion)
635374e7
EM		 460 return;
461
462 if (!is_raid) {
463 sas_device = device;
464 sas_address = sas_device->sas_address;
465 device_name = sas_device->device_name;
466 enclosure_logical_id = sas_device->enclosure_logical_id;
467 slot = sas_device->slot;
468 } else {
469 raid_device = device;
470 sas_address = raid_device->wwid;
471 device_name = 0;
472 enclosure_logical_id = 0;
473 slot = 0;
474 }
475
476 if (!ioc->req_boot_device.device) {
477 if (_scsih_is_boot_device(sas_address, device_name,
478 enclosure_logical_id, slot,
479 (ioc->bios_pg2.ReqBootDeviceForm &
480 MPI2_BIOSPAGE2_FORM_MASK),
481 &ioc->bios_pg2.RequestedBootDevice)) {
eabb08ad 482 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 483 "%s: req_boot_device(0x%016llx)\n",
484 ioc->name, __func__,
485 (unsigned long long)sas_address));
486 ioc->req_boot_device.device = device;
487 ioc->req_boot_device.is_raid = is_raid;
488 }
489 }
490
491 if (!ioc->req_alt_boot_device.device) {
492 if (_scsih_is_boot_device(sas_address, device_name,
493 enclosure_logical_id, slot,
494 (ioc->bios_pg2.ReqAltBootDeviceForm &
495 MPI2_BIOSPAGE2_FORM_MASK),
496 &ioc->bios_pg2.RequestedAltBootDevice)) {
eabb08ad 497 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 498 "%s: req_alt_boot_device(0x%016llx)\n",
499 ioc->name, __func__,
500 (unsigned long long)sas_address));
501 ioc->req_alt_boot_device.device = device;
502 ioc->req_alt_boot_device.is_raid = is_raid;
503 }
504 }
505
506 if (!ioc->current_boot_device.device) {
507 if (_scsih_is_boot_device(sas_address, device_name,
508 enclosure_logical_id, slot,
509 (ioc->bios_pg2.CurrentBootDeviceForm &
510 MPI2_BIOSPAGE2_FORM_MASK),
511 &ioc->bios_pg2.CurrentBootDevice)) {
eabb08ad 512 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 513 "%s: current_boot_device(0x%016llx)\n",
514 ioc->name, __func__,
515 (unsigned long long)sas_address));
516 ioc->current_boot_device.device = device;
517 ioc->current_boot_device.is_raid = is_raid;
518 }
519 }
520}
521
522/**
523 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
524 * @ioc: per adapter object
525 * @sas_address: sas address
526 * Context: Calling function should acquire ioc->sas_device_lock
527 *
528 * This searches for sas_device based on sas_address, then return sas_device
529 * object.
530 */
531struct _sas_device *
532mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
533 u64 sas_address)
534{
cd9843f8 535 struct _sas_device *sas_device;
635374e7 536
cd9843f8
KD		 537 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
538 if (sas_device->sas_address == sas_address)
539 return sas_device;
540
541 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
542 if (sas_device->sas_address == sas_address)
543 return sas_device;
544
545 return NULL;
635374e7
EM		 546}
547
548/**
549 * _scsih_sas_device_find_by_handle - sas device search
550 * @ioc: per adapter object
551 * @handle: sas device handle (assigned by firmware)
552 * Context: Calling function should acquire ioc->sas_device_lock
553 *
554 * This searches for sas_device based on sas_address, then return sas_device
555 * object.
556 */
557static struct _sas_device *
558_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
559{
cd9843f8
KD		 560 struct _sas_device *sas_device;
561
562 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
563 if (sas_device->handle == handle)
564 return sas_device;
565
566 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
567 if (sas_device->handle == handle)
568 return sas_device;
635374e7 569
cd9843f8 570 return NULL;
635374e7
EM		 571}
572
573/**
574 * _scsih_sas_device_remove - remove sas_device from list.
575 * @ioc: per adapter object
576 * @sas_device: the sas_device object
577 * Context: This function will acquire ioc->sas_device_lock.
578 *
579 * Removing object and freeing associated memory from the ioc->sas_device_list.
580 */
581static void
582_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
583 struct _sas_device *sas_device)
584{
585 unsigned long flags;
586
980ead31
KD		 587 if (!sas_device)
588 return;
589
635374e7 590 spin_lock_irqsave(&ioc->sas_device_lock, flags);
09da0b32 591 list_del(&sas_device->list);
592 kfree(sas_device);
635374e7
EM		 593 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
594}
595
09da0b32 596
635374e7
EM		 597/**
598 * _scsih_sas_device_add - insert sas_device to the list.
599 * @ioc: per adapter object
600 * @sas_device: the sas_device object
601 * Context: This function will acquire ioc->sas_device_lock.
602 *
603 * Adding new object to the ioc->sas_device_list.
604 */
605static void
606_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
607 struct _sas_device *sas_device)
608{
609 unsigned long flags;
635374e7 610
eabb08ad 611 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
635374e7
EM		 612 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
613 sas_device->handle, (unsigned long long)sas_device->sas_address));
614
615 spin_lock_irqsave(&ioc->sas_device_lock, flags);
616 list_add_tail(&sas_device->list, &ioc->sas_device_list);
617 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
618
c5e039be 619 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
35116db9 620 sas_device->sas_address_parent)) {
635374e7 621 _scsih_sas_device_remove(ioc, sas_device);
23edb6e7 622 } else if (!sas_device->starget) {
623 /* When asyn scanning is enabled, its not possible to remove
624 * devices while scanning is turned on due to an oops in
625 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
626 */
627 if (!ioc->is_driver_loading)
628 mpt2sas_transport_port_remove(ioc,
629 sas_device->sas_address,
630 sas_device->sas_address_parent);
631 _scsih_sas_device_remove(ioc, sas_device);
632 }
635374e7
EM		 633}
634
635/**
636 * _scsih_sas_device_init_add - insert sas_device to the list.
637 * @ioc: per adapter object
638 * @sas_device: the sas_device object
639 * Context: This function will acquire ioc->sas_device_lock.
640 *
641 * Adding new object at driver load time to the ioc->sas_device_init_list.
642 */
643static void
644_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
645 struct _sas_device *sas_device)
646{
647 unsigned long flags;
648
eabb08ad 649 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
635374e7
EM		 650 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
651 sas_device->handle, (unsigned long long)sas_device->sas_address));
652
653 spin_lock_irqsave(&ioc->sas_device_lock, flags);
654 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
635374e7 655 _scsih_determine_boot_device(ioc, sas_device, 0);
09da0b32 656 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
635374e7
EM		 657}
658
635374e7
EM		 659/**
660 * _scsih_raid_device_find_by_id - raid device search
661 * @ioc: per adapter object
662 * @id: sas device target id
663 * @channel: sas device channel
664 * Context: Calling function should acquire ioc->raid_device_lock
665 *
666 * This searches for raid_device based on target id, then return raid_device
667 * object.
668 */
669static struct _raid_device *
670_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
671{
672 struct _raid_device *raid_device, *r;
673
674 r = NULL;
675 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
676 if (raid_device->id == id && raid_device->channel == channel) {
677 r = raid_device;
678 goto out;
679 }
680 }
681
682 out:
683 return r;
684}
685
686/**
687 * _scsih_raid_device_find_by_handle - raid device search
688 * @ioc: per adapter object
689 * @handle: sas device handle (assigned by firmware)
690 * Context: Calling function should acquire ioc->raid_device_lock
691 *
692 * This searches for raid_device based on handle, then return raid_device
693 * object.
694 */
695static struct _raid_device *
696_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
697{
698 struct _raid_device *raid_device, *r;
699
700 r = NULL;
701 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
702 if (raid_device->handle != handle)
703 continue;
704 r = raid_device;
705 goto out;
706 }
707
708 out:
709 return r;
710}
711
712/**
713 * _scsih_raid_device_find_by_wwid - raid device search
714 * @ioc: per adapter object
715 * @handle: sas device handle (assigned by firmware)
716 * Context: Calling function should acquire ioc->raid_device_lock
717 *
718 * This searches for raid_device based on wwid, then return raid_device
719 * object.
720 */
721static struct _raid_device *
722_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
723{
724 struct _raid_device *raid_device, *r;
725
726 r = NULL;
727 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
728 if (raid_device->wwid != wwid)
729 continue;
730 r = raid_device;
731 goto out;
732 }
733
734 out:
735 return r;
736}
737
738/**
739 * _scsih_raid_device_add - add raid_device object
740 * @ioc: per adapter object
741 * @raid_device: raid_device object
742 *
743 * This is added to the raid_device_list link list.
744 */
745static void
746_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
747 struct _raid_device *raid_device)
748{
749 unsigned long flags;
750
eabb08ad 751 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
635374e7
EM		 752 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
753 raid_device->handle, (unsigned long long)raid_device->wwid));
754
755 spin_lock_irqsave(&ioc->raid_device_lock, flags);
756 list_add_tail(&raid_device->list, &ioc->raid_device_list);
757 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
758}
759
760/**
761 * _scsih_raid_device_remove - delete raid_device object
762 * @ioc: per adapter object
763 * @raid_device: raid_device object
764 *
635374e7
EM		 765 */
766static void
767_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
768 struct _raid_device *raid_device)
769{
770 unsigned long flags;
771
772 spin_lock_irqsave(&ioc->raid_device_lock, flags);
773 list_del(&raid_device->list);
635374e7
EM		 774 kfree(raid_device);
775 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
776}
777
c5e039be
KD		 778/**
779 * mpt2sas_scsih_expander_find_by_handle - expander device search
780 * @ioc: per adapter object
781 * @handle: expander handle (assigned by firmware)
782 * Context: Calling function should acquire ioc->sas_device_lock
783 *
784 * This searches for expander device based on handle, then returns the
785 * sas_node object.
786 */
787struct _sas_node *
788mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
789{
790 struct _sas_node *sas_expander, *r;
791
792 r = NULL;
793 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
794 if (sas_expander->handle != handle)
795 continue;
796 r = sas_expander;
797 goto out;
798 }
799 out:
800 return r;
801}
802
635374e7
EM		 803/**
804 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
805 * @ioc: per adapter object
806 * @sas_address: sas address
807 * Context: Calling function should acquire ioc->sas_node_lock.
808 *
809 * This searches for expander device based on sas_address, then returns the
810 * sas_node object.
811 */
812struct _sas_node *
813mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
814 u64 sas_address)
815{
816 struct _sas_node *sas_expander, *r;
817
818 r = NULL;
819 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
820 if (sas_expander->sas_address != sas_address)
821 continue;
822 r = sas_expander;
823 goto out;
824 }
825 out:
826 return r;
827}
828
829/**
830 * _scsih_expander_node_add - insert expander device to the list.
831 * @ioc: per adapter object
832 * @sas_expander: the sas_device object
833 * Context: This function will acquire ioc->sas_node_lock.
834 *
835 * Adding new object to the ioc->sas_expander_list.
836 *
837 * Return nothing.
838 */
839static void
840_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
841 struct _sas_node *sas_expander)
842{
843 unsigned long flags;
844
845 spin_lock_irqsave(&ioc->sas_node_lock, flags);
846 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
847 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
848}
849
850/**
851 * _scsih_is_end_device - determines if device is an end device
852 * @device_info: bitfield providing information about the device.
853 * Context: none
854 *
855 * Returns 1 if end device.
856 */
857static int
858_scsih_is_end_device(u32 device_info)
859{
860 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
861 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
862 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
863 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
864 return 1;
865 else
866 return 0;
867}
868
869/**
ec07a053 870 * _scsih_scsi_lookup_get - returns scmd entry
635374e7
EM		 871 * @ioc: per adapter object
872 * @smid: system request message index
635374e7
EM		 873 *
874 * Returns the smid stored scmd pointer.
875 */
876static struct scsi_cmnd *
877_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
878{
595bb0bd 879 return ioc->scsi_lookup[smid - 1].scmd;
635374e7
EM		 880}
881
ec07a053
KD		 882/**
883 * _scsih_scsi_lookup_get_clear - returns scmd entry
884 * @ioc: per adapter object
885 * @smid: system request message index
886 *
887 * Returns the smid stored scmd pointer.
888 * Then will derefrence the stored scmd pointer.
889 */
890static inline struct scsi_cmnd *
891_scsih_scsi_lookup_get_clear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
892{
893 unsigned long flags;
894 struct scsi_cmnd *scmd;
895
896 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
897 scmd = ioc->scsi_lookup[smid - 1].scmd;
898 ioc->scsi_lookup[smid - 1].scmd = NULL;
899 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
900
901 return scmd;
902}
903
635374e7
EM		 904/**
905 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
906 * @ioc: per adapter object
907 * @smid: system request message index
908 * @scmd: pointer to scsi command object
909 * Context: This function will acquire ioc->scsi_lookup_lock.
910 *
911 * This will search for a scmd pointer in the scsi_lookup array,
912 * returning the revelent smid. A returned value of zero means invalid.
913 */
914static u16
915_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
916 *scmd)
917{
918 u16 smid;
919 unsigned long flags;
920 int i;
921
922 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
923 smid = 0;
595bb0bd 924 for (i = 0; i < ioc->scsiio_depth; i++) {
635374e7 925 if (ioc->scsi_lookup[i].scmd == scmd) {
595bb0bd 926 smid = ioc->scsi_lookup[i].smid;
635374e7
EM		 927 goto out;
928 }
929 }
930 out:
931 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
932 return smid;
933}
934
935/**
936 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
937 * @ioc: per adapter object
938 * @id: target id
939 * @channel: channel
940 * Context: This function will acquire ioc->scsi_lookup_lock.
941 *
942 * This will search for a matching channel:id in the scsi_lookup array,
943 * returning 1 if found.
944 */
945static u8
946_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
947 int channel)
948{
949 u8 found;
950 unsigned long flags;
951 int i;
952
953 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
954 found = 0;
595bb0bd 955 for (i = 0 ; i < ioc->scsiio_depth; i++) {
635374e7
EM		 956 if (ioc->scsi_lookup[i].scmd &&
957 (ioc->scsi_lookup[i].scmd->device->id == id &&
958 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
959 found = 1;
960 goto out;
961 }
962 }
963 out:
964 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
965 return found;
966}
967
993e0da7
EM		 968/**
969 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
970 * @ioc: per adapter object
971 * @id: target id
972 * @lun: lun number
973 * @channel: channel
974 * Context: This function will acquire ioc->scsi_lookup_lock.
975 *
976 * This will search for a matching channel:id:lun in the scsi_lookup array,
977 * returning 1 if found.
978 */
979static u8
980_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
981 unsigned int lun, int channel)
982{
983 u8 found;
984 unsigned long flags;
985 int i;
986
987 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
988 found = 0;
595bb0bd 989 for (i = 0 ; i < ioc->scsiio_depth; i++) {
993e0da7
EM		 990 if (ioc->scsi_lookup[i].scmd &&
991 (ioc->scsi_lookup[i].scmd->device->id == id &&
992 ioc->scsi_lookup[i].scmd->device->channel == channel &&
993 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
994 found = 1;
995 goto out;
996 }
997 }
998 out:
999 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1000 return found;
1001}
1002
635374e7 1003/**
35f805b5 1004 * _scsih_get_chain_buffer_tracker - obtain chain tracker
635374e7 1005 * @ioc: per adapter object
35f805b5 1006 * @smid: smid associated to an IO request
635374e7 1007 *
35f805b5 1008 * Returns chain tracker(from ioc->free_chain_list)
635374e7 1009 */
35f805b5
KD		 1010static struct chain_tracker *
1011_scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
635374e7 1012{
35f805b5
KD		 1013 struct chain_tracker *chain_req;
1014 unsigned long flags;
635374e7 1015
35f805b5
KD		 1016 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1017 if (list_empty(&ioc->free_chain_list)) {
1018 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
aff132d9 1019 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT "chain buffers not "
1020 "available\n", ioc->name));
35f805b5
KD		 1021 return NULL;
1022 }
1023 chain_req = list_entry(ioc->free_chain_list.next,
1024 struct chain_tracker, tracker_list);
1025 list_del_init(&chain_req->tracker_list);
1026 list_add_tail(&chain_req->tracker_list,
1027 &ioc->scsi_lookup[smid - 1].chain_list);
1028 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1029 return chain_req;
635374e7
EM		 1030}
1031
1032/**
1033 * _scsih_build_scatter_gather - main sg creation routine
1034 * @ioc: per adapter object
1035 * @scmd: scsi command
1036 * @smid: system request message index
1037 * Context: none.
1038 *
1039 * The main routine that builds scatter gather table from a given
1040 * scsi request sent via the .queuecommand main handler.
1041 *
1042 * Returns 0 success, anything else error
1043 */
1044static int
1045_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
1046 struct scsi_cmnd *scmd, u16 smid)
1047{
1048 Mpi2SCSIIORequest_t *mpi_request;
1049 dma_addr_t chain_dma;
1050 struct scatterlist *sg_scmd;
1051 void *sg_local, *chain;
1052 u32 chain_offset;
1053 u32 chain_length;
1054 u32 chain_flags;
bb789d01 1055 int sges_left;
635374e7
EM		 1056 u32 sges_in_segment;
1057 u32 sgl_flags;
1058 u32 sgl_flags_last_element;
1059 u32 sgl_flags_end_buffer;
35f805b5 1060 struct chain_tracker *chain_req;
635374e7
EM		 1061
1062 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1063
1064 /* init scatter gather flags */
1065 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
1066 if (scmd->sc_data_direction == DMA_TO_DEVICE)
1067 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
1068 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
1069 << MPI2_SGE_FLAGS_SHIFT;
1070 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
1071 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
1072 << MPI2_SGE_FLAGS_SHIFT;
1073 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1074
1075 sg_scmd = scsi_sglist(scmd);
1076 sges_left = scsi_dma_map(scmd);
bb789d01 1077 if (sges_left < 0) {
635374e7
EM		 1078 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
1079 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
1080 return -ENOMEM;
1081 }
1082
1083 sg_local = &mpi_request->SGL;
1084 sges_in_segment = ioc->max_sges_in_main_message;
1085 if (sges_left <= sges_in_segment)
1086 goto fill_in_last_segment;
1087
1088 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1089 (sges_in_segment * ioc->sge_size))/4;
1090
1091 /* fill in main message segment when there is a chain following */
1092 while (sges_in_segment) {
1093 if (sges_in_segment == 1)
1094 ioc->base_add_sg_single(sg_local,
1095 sgl_flags_last_element | sg_dma_len(sg_scmd),
1096 sg_dma_address(sg_scmd));
1097 else
1098 ioc->base_add_sg_single(sg_local, sgl_flags |
1099 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1100 sg_scmd = sg_next(sg_scmd);
1101 sg_local += ioc->sge_size;
1102 sges_left--;
1103 sges_in_segment--;
1104 }
1105
1106 /* initializing the chain flags and pointers */
1107 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
35f805b5
KD		 1108 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1109 if (!chain_req)
1110 return -1;
1111 chain = chain_req->chain_buffer;
1112 chain_dma = chain_req->chain_buffer_dma;
635374e7
EM		 1113 do {
1114 sges_in_segment = (sges_left <=
1115 ioc->max_sges_in_chain_message) ? sges_left :
1116 ioc->max_sges_in_chain_message;
1117 chain_offset = (sges_left == sges_in_segment) ?
1118 0 : (sges_in_segment * ioc->sge_size)/4;
1119 chain_length = sges_in_segment * ioc->sge_size;
1120 if (chain_offset) {
1121 chain_offset = chain_offset <<
1122 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1123 chain_length += ioc->sge_size;
1124 }
1125 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1126 chain_length, chain_dma);
1127 sg_local = chain;
1128 if (!chain_offset)
1129 goto fill_in_last_segment;
1130
1131 /* fill in chain segments */
1132 while (sges_in_segment) {
1133 if (sges_in_segment == 1)
1134 ioc->base_add_sg_single(sg_local,
1135 sgl_flags_last_element |
1136 sg_dma_len(sg_scmd),
1137 sg_dma_address(sg_scmd));
1138 else
1139 ioc->base_add_sg_single(sg_local, sgl_flags |
1140 sg_dma_len(sg_scmd),
1141 sg_dma_address(sg_scmd));
1142 sg_scmd = sg_next(sg_scmd);
1143 sg_local += ioc->sge_size;
1144 sges_left--;
1145 sges_in_segment--;
1146 }
1147
35f805b5
KD		 1148 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1149 if (!chain_req)
1150 return -1;
1151 chain = chain_req->chain_buffer;
1152 chain_dma = chain_req->chain_buffer_dma;
635374e7
EM		 1153 } while (1);
1154
1155
1156 fill_in_last_segment:
1157
1158 /* fill the last segment */
1159 while (sges_left) {
1160 if (sges_left == 1)
1161 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1162 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1163 else
1164 ioc->base_add_sg_single(sg_local, sgl_flags |
1165 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1166 sg_scmd = sg_next(sg_scmd);
1167 sg_local += ioc->sge_size;
1168 sges_left--;
1169 }
1170
1171 return 0;
1172}
1173
1174/**
a93c6b45 1175 * _scsih_adjust_queue_depth - setting device queue depth
635374e7
EM		 1176 * @sdev: scsi device struct
1177 * @qdepth: requested queue depth
1178 *
a93c6b45
KD		 1179 *
1180 * Returns nothing
635374e7 1181 */
a93c6b45
KD		 1182static void
1183_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
635374e7
EM		 1184{
1185 struct Scsi_Host *shost = sdev->host;
1186 int max_depth;
e0077d60
KD		 1187 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1188 struct MPT2SAS_DEVICE *sas_device_priv_data;
1189 struct MPT2SAS_TARGET *sas_target_priv_data;
1190 struct _sas_device *sas_device;
1191 unsigned long flags;
635374e7
EM		 1192
1193 max_depth = shost->can_queue;
e0077d60
KD		 1194
1195 /* limit max device queue for SATA to 32 */
1196 sas_device_priv_data = sdev->hostdata;
1197 if (!sas_device_priv_data)
1198 goto not_sata;
1199 sas_target_priv_data = sas_device_priv_data->sas_target;
1200 if (!sas_target_priv_data)
1201 goto not_sata;
1202 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1203 goto not_sata;
1204 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1205 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1206 sas_device_priv_data->sas_target->sas_address);
e0077d60
KD		 1207 if (sas_device && sas_device->device_info &
1208 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1209 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
09da0b32 1210 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
e0077d60
KD		 1211
1212 not_sata:
1213
635374e7
EM		 1214 if (!sdev->tagged_supported)
1215 max_depth = 1;
1216 if (qdepth > max_depth)
1217 qdepth = max_depth;
a93c6b45
KD		 1218 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1219}
1220
1221/**
1222 * _scsih_change_queue_depth - setting device queue depth
1223 * @sdev: scsi device struct
1224 * @qdepth: requested queue depth
1225 * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
1226 * (see include/scsi/scsi_host.h for definition)
1227 *
1228 * Returns queue depth.
1229 */
1230static int
1231_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1232{
1233 if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
1234 _scsih_adjust_queue_depth(sdev, qdepth);
1235 else if (reason == SCSI_QDEPTH_QFULL)
1236 scsi_track_queue_full(sdev, qdepth);
1237 else
1238 return -EOPNOTSUPP;
635374e7
EM		 1239
1240 if (sdev->inquiry_len > 7)
1241 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1242 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1243 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1244 sdev->ordered_tags, sdev->scsi_level,
1245 (sdev->inquiry[7] & 2) >> 1);
1246
1247 return sdev->queue_depth;
1248}
1249
1250/**
595bb0bd 1251 * _scsih_change_queue_type - changing device queue tag type
635374e7
EM		 1252 * @sdev: scsi device struct
1253 * @tag_type: requested tag type
1254 *
1255 * Returns queue tag type.
1256 */
1257static int
d5d135b3 1258_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
635374e7
EM		 1259{
1260 if (sdev->tagged_supported) {
1261 scsi_set_tag_type(sdev, tag_type);
1262 if (tag_type)
1263 scsi_activate_tcq(sdev, sdev->queue_depth);
1264 else
1265 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1266 } else
1267 tag_type = 0;
1268
1269 return tag_type;
1270}
1271
1272/**
d5d135b3 1273 * _scsih_target_alloc - target add routine
635374e7
EM		 1274 * @starget: scsi target struct
1275 *
1276 * Returns 0 if ok. Any other return is assumed to be an error and
1277 * the device is ignored.
1278 */
1279static int
d5d135b3 1280_scsih_target_alloc(struct scsi_target *starget)
635374e7
EM		 1281{
1282 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1283 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1284 struct MPT2SAS_TARGET *sas_target_priv_data;
1285 struct _sas_device *sas_device;
1286 struct _raid_device *raid_device;
1287 unsigned long flags;
1288 struct sas_rphy *rphy;
1289
1290 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1291 if (!sas_target_priv_data)
1292 return -ENOMEM;
1293
1294 starget->hostdata = sas_target_priv_data;
1295 sas_target_priv_data->starget = starget;
1296 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1297
1298 /* RAID volumes */
1299 if (starget->channel == RAID_CHANNEL) {
1300 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1301 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1302 starget->channel);
1303 if (raid_device) {
1304 sas_target_priv_data->handle = raid_device->handle;
1305 sas_target_priv_data->sas_address = raid_device->wwid;
1306 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
09da0b32 1307 if (ioc->is_warpdrive)
1308 sas_target_priv_data->raid_device = raid_device;
635374e7
EM		 1309 raid_device->starget = starget;
1310 }
1311 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1312 return 0;
1313 }
1314
1315 /* sas/sata devices */
1316 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1317 rphy = dev_to_rphy(starget->dev.parent);
1318 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1319 rphy->identify.sas_address);
1320
1321 if (sas_device) {
1322 sas_target_priv_data->handle = sas_device->handle;
1323 sas_target_priv_data->sas_address = sas_device->sas_address;
1324 sas_device->starget = starget;
1325 sas_device->id = starget->id;
1326 sas_device->channel = starget->channel;
f3eedd69 1327 if (test_bit(sas_device->handle, ioc->pd_handles))
635374e7
EM		 1328 sas_target_priv_data->flags |=
1329 MPT_TARGET_FLAGS_RAID_COMPONENT;
1330 }
1331 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1332
1333 return 0;
1334}
1335
1336/**
d5d135b3 1337 * _scsih_target_destroy - target destroy routine
635374e7
EM		 1338 * @starget: scsi target struct
1339 *
1340 * Returns nothing.
1341 */
1342static void
d5d135b3 1343_scsih_target_destroy(struct scsi_target *starget)
635374e7
EM		 1344{
1345 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1346 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1347 struct MPT2SAS_TARGET *sas_target_priv_data;
1348 struct _sas_device *sas_device;
1349 struct _raid_device *raid_device;
1350 unsigned long flags;
1351 struct sas_rphy *rphy;
1352
1353 sas_target_priv_data = starget->hostdata;
1354 if (!sas_target_priv_data)
1355 return;
1356
1357 if (starget->channel == RAID_CHANNEL) {
1358 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1359 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1360 starget->channel);
1361 if (raid_device) {
1362 raid_device->starget = NULL;
1363 raid_device->sdev = NULL;
1364 }
1365 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1366 goto out;
1367 }
1368
1369 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1370 rphy = dev_to_rphy(starget->dev.parent);
1371 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1372 rphy->identify.sas_address);
8901cbb4
EM		 1373 if (sas_device && (sas_device->starget == starget) &&
1374 (sas_device->id == starget->id) &&
1375 (sas_device->channel == starget->channel))
635374e7
EM		 1376 sas_device->starget = NULL;
1377
1378 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1379
1380 out:
1381 kfree(sas_target_priv_data);
1382 starget->hostdata = NULL;
1383}
1384
1385/**
d5d135b3 1386 * _scsih_slave_alloc - device add routine
635374e7
EM		 1387 * @sdev: scsi device struct
1388 *
1389 * Returns 0 if ok. Any other return is assumed to be an error and
1390 * the device is ignored.
1391 */
1392static int
d5d135b3 1393_scsih_slave_alloc(struct scsi_device *sdev)
635374e7
EM		 1394{
1395 struct Scsi_Host *shost;
1396 struct MPT2SAS_ADAPTER *ioc;
1397 struct MPT2SAS_TARGET *sas_target_priv_data;
1398 struct MPT2SAS_DEVICE *sas_device_priv_data;
1399 struct scsi_target *starget;
1400 struct _raid_device *raid_device;
635374e7
EM		 1401 unsigned long flags;
1402
1403 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1404 if (!sas_device_priv_data)
1405 return -ENOMEM;
1406
1407 sas_device_priv_data->lun = sdev->lun;
1408 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1409
1410 starget = scsi_target(sdev);
1411 sas_target_priv_data = starget->hostdata;
1412 sas_target_priv_data->num_luns++;
1413 sas_device_priv_data->sas_target = sas_target_priv_data;
1414 sdev->hostdata = sas_device_priv_data;
1415 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1416 sdev->no_uld_attach = 1;
1417
1418 shost = dev_to_shost(&starget->dev);
1419 ioc = shost_priv(shost);
1420 if (starget->channel == RAID_CHANNEL) {
1421 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1422 raid_device = _scsih_raid_device_find_by_id(ioc,
1423 starget->id, starget->channel);
1424 if (raid_device)
1425 raid_device->sdev = sdev; /* raid is single lun */
1426 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
635374e7
EM		 1427 }
1428
635374e7
EM		 1429 return 0;
1430}
1431
1432/**
d5d135b3 1433 * _scsih_slave_destroy - device destroy routine
635374e7
EM		 1434 * @sdev: scsi device struct
1435 *
1436 * Returns nothing.
1437 */
1438static void
d5d135b3 1439_scsih_slave_destroy(struct scsi_device *sdev)
635374e7
EM		 1440{
1441 struct MPT2SAS_TARGET *sas_target_priv_data;
1442 struct scsi_target *starget;
35116db9 1443 struct Scsi_Host *shost;
1444 struct MPT2SAS_ADAPTER *ioc;
1445 struct _sas_device *sas_device;
1446 unsigned long flags;
635374e7
EM		 1447
1448 if (!sdev->hostdata)
1449 return;
1450
1451 starget = scsi_target(sdev);
1452 sas_target_priv_data = starget->hostdata;
1453 sas_target_priv_data->num_luns--;
35116db9 1454
1455 shost = dev_to_shost(&starget->dev);
1456 ioc = shost_priv(shost);
1457
1458 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1459 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1460 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1461 sas_target_priv_data->sas_address);
23edb6e7 1462 if (sas_device && !sas_target_priv_data->num_luns)
35116db9 1463 sas_device->starget = NULL;
1464 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1465 }
1466
635374e7
EM		 1467 kfree(sdev->hostdata);
1468 sdev->hostdata = NULL;
1469}
1470
1471/**
d5d135b3 1472 * _scsih_display_sata_capabilities - sata capabilities
635374e7 1473 * @ioc: per adapter object
09da0b32 1474 * @handle: device handle
635374e7
EM		 1475 * @sdev: scsi device struct
1476 */
1477static void
d5d135b3 1478_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
09da0b32 1479 u16 handle, struct scsi_device *sdev)
635374e7
EM		 1480{
1481 Mpi2ConfigReply_t mpi_reply;
1482 Mpi2SasDevicePage0_t sas_device_pg0;
1483 u32 ioc_status;
1484 u16 flags;
1485 u32 device_info;
1486
1487 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
09da0b32 1488 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
635374e7
EM		 1489 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1490 ioc->name, __FILE__, __LINE__, __func__);
1491 return;
1492 }
1493
1494 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1495 MPI2_IOCSTATUS_MASK;
1496 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1497 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1498 ioc->name, __FILE__, __LINE__, __func__);
1499 return;
1500 }
1501
1502 flags = le16_to_cpu(sas_device_pg0.Flags);
e94f6747 1503 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
635374e7
EM		 1504
1505 sdev_printk(KERN_INFO, sdev,
1506 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1507 "sw_preserve(%s)\n",
1508 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1509 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1510 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1511 "n",
1512 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1513 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1514 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1515}
1516
f7c95ef0
KD		 1517/**
1518 * _scsih_is_raid - return boolean indicating device is raid volume
1519 * @dev the device struct object
1520 */
1521static int
1522_scsih_is_raid(struct device *dev)
1523{
1524 struct scsi_device *sdev = to_scsi_device(dev);
0bdccdb0 1525 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
f7c95ef0 1526
0bdccdb0
KD		 1527 if (ioc->is_warpdrive)
1528 return 0;
f7c95ef0
KD		 1529 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1530}
1531
1532/**
1533 * _scsih_get_resync - get raid volume resync percent complete
1534 * @dev the device struct object
1535 */
1536static void
1537_scsih_get_resync(struct device *dev)
1538{
1539 struct scsi_device *sdev = to_scsi_device(dev);
1540 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1541 static struct _raid_device *raid_device;
1542 unsigned long flags;
1543 Mpi2RaidVolPage0_t vol_pg0;
1544 Mpi2ConfigReply_t mpi_reply;
1545 u32 volume_status_flags;
09da0b32 1546 u8 percent_complete;
1547 u16 handle;
1548
1549 percent_complete = 0;
1550 handle = 0;
1551 if (ioc->is_warpdrive)
1552 goto out;
f7c95ef0
KD		 1553
1554 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1555 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1556 sdev->channel);
09da0b32 1557 if (raid_device) {
1558 handle = raid_device->handle;
1559 percent_complete = raid_device->percent_complete;
1560 }
f7c95ef0
KD		 1561 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1562
09da0b32 1563 if (!handle)
f7c95ef0
KD		 1564 goto out;
1565
1566 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
09da0b32 1567 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
f7c95ef0
KD		 1568 sizeof(Mpi2RaidVolPage0_t))) {
1569 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1570 ioc->name, __FILE__, __LINE__, __func__);
09da0b32 1571 percent_complete = 0;
f7c95ef0
KD		 1572 goto out;
1573 }
1574
1575 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
09da0b32 1576 if (!(volume_status_flags &
1577 MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
1578 percent_complete = 0;
1579
f7c95ef0
KD		 1580 out:
1581 raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
1582}
1583
1584/**
1585 * _scsih_get_state - get raid volume level
1586 * @dev the device struct object
1587 */
1588static void
1589_scsih_get_state(struct device *dev)
1590{
1591 struct scsi_device *sdev = to_scsi_device(dev);
1592 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1593 static struct _raid_device *raid_device;
1594 unsigned long flags;
1595 Mpi2RaidVolPage0_t vol_pg0;
1596 Mpi2ConfigReply_t mpi_reply;
1597 u32 volstate;
1598 enum raid_state state = RAID_STATE_UNKNOWN;
09da0b32 1599 u16 handle = 0;
f7c95ef0
KD		 1600
1601 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1602 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1603 sdev->channel);
09da0b32 1604 if (raid_device)
1605 handle = raid_device->handle;
f7c95ef0
KD		 1606 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1607
1608 if (!raid_device)
1609 goto out;
1610
1611 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
09da0b32 1612 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
f7c95ef0
KD		 1613 sizeof(Mpi2RaidVolPage0_t))) {
1614 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1615 ioc->name, __FILE__, __LINE__, __func__);
1616 goto out;
1617 }
1618
1619 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1620 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1621 state = RAID_STATE_RESYNCING;
1622 goto out;
1623 }
1624
1625 switch (vol_pg0.VolumeState) {
1626 case MPI2_RAID_VOL_STATE_OPTIMAL:
1627 case MPI2_RAID_VOL_STATE_ONLINE:
1628 state = RAID_STATE_ACTIVE;
1629 break;
1630 case MPI2_RAID_VOL_STATE_DEGRADED:
1631 state = RAID_STATE_DEGRADED;
1632 break;
1633 case MPI2_RAID_VOL_STATE_FAILED:
1634 case MPI2_RAID_VOL_STATE_MISSING:
1635 state = RAID_STATE_OFFLINE;
1636 break;
1637 }
1638 out:
1639 raid_set_state(mpt2sas_raid_template, dev, state);
1640}
1641
1642/**
1643 * _scsih_set_level - set raid level
1644 * @sdev: scsi device struct
09da0b32 1645 * @volume_type: volume type
f7c95ef0
KD		 1646 */
1647static void
09da0b32 1648_scsih_set_level(struct scsi_device *sdev, u8 volume_type)
f7c95ef0
KD		 1649{
1650 enum raid_level level = RAID_LEVEL_UNKNOWN;
1651
09da0b32 1652 switch (volume_type) {
f7c95ef0
KD		 1653 case MPI2_RAID_VOL_TYPE_RAID0:
1654 level = RAID_LEVEL_0;
1655 break;
1656 case MPI2_RAID_VOL_TYPE_RAID10:
1657 level = RAID_LEVEL_10;
1658 break;
1659 case MPI2_RAID_VOL_TYPE_RAID1E:
1660 level = RAID_LEVEL_1E;
1661 break;
1662 case MPI2_RAID_VOL_TYPE_RAID1:
1663 level = RAID_LEVEL_1;
1664 break;
1665 }
1666
1667 raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
1668}
1669
635374e7
EM		 1670/**
1671 * _scsih_get_volume_capabilities - volume capabilities
1672 * @ioc: per adapter object
1673 * @sas_device: the raid_device object
6faace2a 1674 *
1675 * Returns 0 for success, else 1
635374e7 1676 */
6faace2a 1677static int
635374e7
EM		 1678_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1679 struct _raid_device *raid_device)
1680{
1681 Mpi2RaidVolPage0_t *vol_pg0;
1682 Mpi2RaidPhysDiskPage0_t pd_pg0;
1683 Mpi2SasDevicePage0_t sas_device_pg0;
1684 Mpi2ConfigReply_t mpi_reply;
1685 u16 sz;
1686 u8 num_pds;
1687
1688 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1689 &num_pds)) || !num_pds) {
6faace2a 1690 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1691 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1692 __func__));
1693 return 1;
635374e7
EM		 1694 }
1695
1696 raid_device->num_pds = num_pds;
1697 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1698 sizeof(Mpi2RaidVol0PhysDisk_t));
1699 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1700 if (!vol_pg0) {
6faace2a 1701 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1702 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1703 __func__));
1704 return 1;
635374e7
EM		 1705 }
1706
1707 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1708 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
6faace2a 1709 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1710 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1711 __func__));
635374e7 1712 kfree(vol_pg0);
6faace2a 1713 return 1;
635374e7
EM		 1714 }
1715
1716 raid_device->volume_type = vol_pg0->VolumeType;
1717
1718 /* figure out what the underlying devices are by
1719 * obtaining the device_info bits for the 1st device
1720 */
1721 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1722 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1723 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1724 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1725 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1726 le16_to_cpu(pd_pg0.DevHandle)))) {
1727 raid_device->device_info =
1728 le32_to_cpu(sas_device_pg0.DeviceInfo);
1729 }
1730 }
1731
1732 kfree(vol_pg0);
6faace2a 1733 return 0;
635374e7 1734}
0bdccdb0
KD		 1735/**
1736 * _scsih_disable_ddio - Disable direct I/O for all the volumes
1737 * @ioc: per adapter object
1738 */
1739static void
1740_scsih_disable_ddio(struct MPT2SAS_ADAPTER *ioc)
1741{
1742 Mpi2RaidVolPage1_t vol_pg1;
1743 Mpi2ConfigReply_t mpi_reply;
1744 struct _raid_device *raid_device;
1745 u16 handle;
1746 u16 ioc_status;
09da0b32 1747 unsigned long flags;
0bdccdb0
KD		 1748
1749 handle = 0xFFFF;
1750 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1751 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1752 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1753 MPI2_IOCSTATUS_MASK;
1754 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1755 break;
1756 handle = le16_to_cpu(vol_pg1.DevHandle);
09da0b32 1757 spin_lock_irqsave(&ioc->raid_device_lock, flags);
0bdccdb0
KD		 1758 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
1759 if (raid_device)
1760 raid_device->direct_io_enabled = 0;
09da0b32 1761 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
0bdccdb0
KD		 1762 }
1763 return;
1764}
1765
1766
1767/**
1768 * _scsih_get_num_volumes - Get number of volumes in the ioc
1769 * @ioc: per adapter object
1770 */
1771static u8
1772_scsih_get_num_volumes(struct MPT2SAS_ADAPTER *ioc)
1773{
1774 Mpi2RaidVolPage1_t vol_pg1;
1775 Mpi2ConfigReply_t mpi_reply;
1776 u16 handle;
1777 u8 vol_cnt = 0;
1778 u16 ioc_status;
1779
1780 handle = 0xFFFF;
1781 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1782 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1783 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1784 MPI2_IOCSTATUS_MASK;
1785 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1786 break;
1787 vol_cnt++;
1788 handle = le16_to_cpu(vol_pg1.DevHandle);
1789 }
1790 return vol_cnt;
1791}
1792
1793
1794/**
1795 * _scsih_init_warpdrive_properties - Set properties for warpdrive direct I/O.
1796 * @ioc: per adapter object
1797 * @raid_device: the raid_device object
1798 */
1799static void
1800_scsih_init_warpdrive_properties(struct MPT2SAS_ADAPTER *ioc,
1801 struct _raid_device *raid_device)
1802{
1803 Mpi2RaidVolPage0_t *vol_pg0;
1804 Mpi2RaidPhysDiskPage0_t pd_pg0;
1805 Mpi2ConfigReply_t mpi_reply;
1806 u16 sz;
1807 u8 num_pds, count;
ba96bd0b 1808 unsigned long stripe_sz, block_sz;
1809 u8 stripe_exp, block_exp;
1810 u64 dev_max_lba;
0bdccdb0
KD		 1811
1812 if (!ioc->is_warpdrive)
1813 return;
1814
1815 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS) {
1816 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1817 "globally as drives are exposed\n", ioc->name);
1818 return;
1819 }
1820 if (_scsih_get_num_volumes(ioc) > 1) {
1821 _scsih_disable_ddio(ioc);
1822 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1823 "globally as number of drives > 1\n", ioc->name);
1824 return;
1825 }
1826 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1827 &num_pds)) || !num_pds) {
1828 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1829 "Failure in computing number of drives\n", ioc->name);
1830 return;
1831 }
1832
1833 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1834 sizeof(Mpi2RaidVol0PhysDisk_t));
1835 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1836 if (!vol_pg0) {
1837 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1838 "Memory allocation failure for RVPG0\n", ioc->name);
1839 return;
1840 }
1841
1842 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1843 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1844 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1845 "Failure in retrieving RVPG0\n", ioc->name);
1846 kfree(vol_pg0);
1847 return;
1848 }
1849
1850 /*
1851 * WARPDRIVE:If number of physical disks in a volume exceeds the max pds
1852 * assumed for WARPDRIVE, disable direct I/O
1853 */
1854 if (num_pds > MPT_MAX_WARPDRIVE_PDS) {
1855 printk(MPT2SAS_WARN_FMT "WarpDrive : Direct IO is disabled "
1856 "for the drive with handle(0x%04x): num_mem=%d, "
1857 "max_mem_allowed=%d\n", ioc->name, raid_device->handle,
1858 num_pds, MPT_MAX_WARPDRIVE_PDS);
1859 kfree(vol_pg0);
1860 return;
1861 }
1862 for (count = 0; count < num_pds; count++) {
1863 if (mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1864 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1865 vol_pg0->PhysDisk[count].PhysDiskNum) ||
d838c36c 1866 le16_to_cpu(pd_pg0.DevHandle) ==
1867 MPT2SAS_INVALID_DEVICE_HANDLE) {
0bdccdb0
KD		 1868 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
1869 "disabled for the drive with handle(0x%04x) member"
1870 "handle retrieval failed for member number=%d\n",
1871 ioc->name, raid_device->handle,
1872 vol_pg0->PhysDisk[count].PhysDiskNum);
1873 goto out_error;
1874 }
ba96bd0b 1875 /* Disable direct I/O if member drive lba exceeds 4 bytes */
1876 dev_max_lba = le64_to_cpu(pd_pg0.DeviceMaxLBA);
1877 if (dev_max_lba >> 32) {
1878 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
1879 "disabled for the drive with handle(0x%04x) member"
1880 "handle (0x%04x) unsupported max lba 0x%016llx\n",
1881 ioc->name, raid_device->handle,
1882 le16_to_cpu(pd_pg0.DevHandle),
1883 (unsigned long long)dev_max_lba);
1884 goto out_error;
1885 }
1886
0bdccdb0
KD		 1887 raid_device->pd_handle[count] = le16_to_cpu(pd_pg0.DevHandle);
1888 }
1889
1890 /*
1891 * Assumption for WD: Direct I/O is not supported if the volume is
ba96bd0b 1892 * not RAID0
0bdccdb0 1893 */
ba96bd0b 1894 if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0) {
0bdccdb0
KD		 1895 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1896 "for the drive with handle(0x%04x): type=%d, "
1897 "s_sz=%uK, blk_size=%u\n", ioc->name,
1898 raid_device->handle, raid_device->volume_type,
ba96bd0b 1899 (le32_to_cpu(vol_pg0->StripeSize) *
1900 le16_to_cpu(vol_pg0->BlockSize)) / 1024,
0bdccdb0
KD		 1901 le16_to_cpu(vol_pg0->BlockSize));
1902 goto out_error;
1903 }
1904
ba96bd0b 1905 stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1906 stripe_exp = find_first_bit(&stripe_sz, 32);
1907 if (stripe_exp == 32) {
0bdccdb0 1908 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
ba96bd0b 1909 "for the drive with handle(0x%04x) invalid stripe sz %uK\n",
1910 ioc->name, raid_device->handle,
1911 (le32_to_cpu(vol_pg0->StripeSize) *
1912 le16_to_cpu(vol_pg0->BlockSize)) / 1024);
0bdccdb0
KD		 1913 goto out_error;
1914 }
ba96bd0b 1915 raid_device->stripe_exponent = stripe_exp;
1916 block_sz = le16_to_cpu(vol_pg0->BlockSize);
1917 block_exp = find_first_bit(&block_sz, 16);
1918 if (block_exp == 16) {
0bdccdb0 1919 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
ba96bd0b 1920 "for the drive with handle(0x%04x) invalid block sz %u\n",
0bdccdb0 1921 ioc->name, raid_device->handle,
ba96bd0b 1922 le16_to_cpu(vol_pg0->BlockSize));
0bdccdb0
KD		 1923 goto out_error;
1924 }
ba96bd0b 1925 raid_device->block_exponent = block_exp;
0bdccdb0
KD		 1926 raid_device->direct_io_enabled = 1;
1927
1928 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is Enabled for the drive"
1929 " with handle(0x%04x)\n", ioc->name, raid_device->handle);
1930 /*
1931 * WARPDRIVE: Though the following fields are not used for direct IO,
1932 * stored for future purpose:
1933 */
1934 raid_device->max_lba = le64_to_cpu(vol_pg0->MaxLBA);
1935 raid_device->stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1936 raid_device->block_sz = le16_to_cpu(vol_pg0->BlockSize);
1937
1938
1939 kfree(vol_pg0);
1940 return;
1941
1942out_error:
1943 raid_device->direct_io_enabled = 0;
1944 for (count = 0; count < num_pds; count++)
1945 raid_device->pd_handle[count] = 0;
1946 kfree(vol_pg0);
1947 return;
1948}
635374e7 1949
84f0b04a
KD		 1950/**
1951 * _scsih_enable_tlr - setting TLR flags
1952 * @ioc: per adapter object
1953 * @sdev: scsi device struct
1954 *
1955 * Enabling Transaction Layer Retries for tape devices when
1956 * vpd page 0x90 is present
1957 *
1958 */
1959static void
1960_scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
1961{
1962 /* only for TAPE */
1963 if (sdev->type != TYPE_TAPE)
1964 return;
1965
1966 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1967 return;
1968
1969 sas_enable_tlr(sdev);
1970 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1971 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1972 return;
1973
1974}
1975
635374e7 1976/**
d5d135b3 1977 * _scsih_slave_configure - device configure routine.
635374e7
EM		 1978 * @sdev: scsi device struct
1979 *
1980 * Returns 0 if ok. Any other return is assumed to be an error and
1981 * the device is ignored.
1982 */
1983static int
d5d135b3 1984_scsih_slave_configure(struct scsi_device *sdev)
635374e7
EM		 1985{
1986 struct Scsi_Host *shost = sdev->host;
1987 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1988 struct MPT2SAS_DEVICE *sas_device_priv_data;
1989 struct MPT2SAS_TARGET *sas_target_priv_data;
1990 struct _sas_device *sas_device;
1991 struct _raid_device *raid_device;
1992 unsigned long flags;
1993 int qdepth;
1994 u8 ssp_target = 0;
1995 char *ds = "";
1996 char *r_level = "";
09da0b32 1997 u16 handle, volume_handle = 0;
1998 u64 volume_wwid = 0;
635374e7
EM		 1999
2000 qdepth = 1;
2001 sas_device_priv_data = sdev->hostdata;
2002 sas_device_priv_data->configured_lun = 1;
2003 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
2004 sas_target_priv_data = sas_device_priv_data->sas_target;
09da0b32 2005 handle = sas_target_priv_data->handle;
635374e7
EM		 2006
2007 /* raid volume handling */
2008 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
2009
2010 spin_lock_irqsave(&ioc->raid_device_lock, flags);
09da0b32 2011 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
635374e7
EM		 2012 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
2013 if (!raid_device) {
6faace2a 2014 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2015 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2016 __LINE__, __func__));
2017 return 1;
635374e7
EM		 2018 }
2019
6faace2a 2020 if (_scsih_get_volume_capabilities(ioc, raid_device)) {
2021 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2022 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2023 __LINE__, __func__));
2024 return 1;
2025 }
0bdccdb0
KD		 2026 /*
2027 * WARPDRIVE: Initialize the required data for Direct IO
2028 */
2029 _scsih_init_warpdrive_properties(ioc, raid_device);
2030
635374e7
EM		 2031 /* RAID Queue Depth Support
2032 * IS volume = underlying qdepth of drive type, either
2033 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
2034 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
2035 */
2036 if (raid_device->device_info &
2037 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
2038 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
2039 ds = "SSP";
2040 } else {
2041 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
2042 if (raid_device->device_info &
2043 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
2044 ds = "SATA";
2045 else
2046 ds = "STP";
2047 }
2048
2049 switch (raid_device->volume_type) {
2050 case MPI2_RAID_VOL_TYPE_RAID0:
2051 r_level = "RAID0";
2052 break;
2053 case MPI2_RAID_VOL_TYPE_RAID1E:
2054 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
ed79f128 2055 if (ioc->manu_pg10.OEMIdentifier &&
c97951ec 2056 (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
ed79f128
KD		 2057 MFG10_GF0_R10_DISPLAY) &&
2058 !(raid_device->num_pds % 2))
2059 r_level = "RAID10";
2060 else
2061 r_level = "RAID1E";
635374e7
EM		 2062 break;
2063 case MPI2_RAID_VOL_TYPE_RAID1:
2064 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2065 r_level = "RAID1";
2066 break;
2067 case MPI2_RAID_VOL_TYPE_RAID10:
2068 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2069 r_level = "RAID10";
2070 break;
2071 case MPI2_RAID_VOL_TYPE_UNKNOWN:
2072 default:
2073 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2074 r_level = "RAIDX";
2075 break;
2076 }
2077
0bdccdb0
KD		 2078 if (!ioc->hide_ir_msg)
2079 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
2080 "wwid(0x%016llx), pd_count(%d), type(%s)\n",
2081 r_level, raid_device->handle,
2082 (unsigned long long)raid_device->wwid,
2083 raid_device->num_pds, ds);
e881a172 2084 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
f7c95ef0 2085 /* raid transport support */
0bdccdb0 2086 if (!ioc->is_warpdrive)
09da0b32 2087 _scsih_set_level(sdev, raid_device->volume_type);
635374e7
EM		 2088 return 0;
2089 }
2090
2091 /* non-raid handling */
09da0b32 2092 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
2093 if (mpt2sas_config_get_volume_handle(ioc, handle,
2094 &volume_handle)) {
2095 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2096 "failure at %s:%d/%s()!\n", ioc->name,
2097 __FILE__, __LINE__, __func__));
2098 return 1;
635374e7 2099 }
09da0b32 2100 if (volume_handle && mpt2sas_config_get_volume_wwid(ioc,
2101 volume_handle, &volume_wwid)) {
2102 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2103 "failure at %s:%d/%s()!\n", ioc->name,
2104 __FILE__, __LINE__, __func__));
2105 return 1;
635374e7 2106 }
09da0b32 2107 }
635374e7 2108
09da0b32 2109 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2110 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2111 sas_device_priv_data->sas_target->sas_address);
2112 if (!sas_device) {
2113 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6faace2a 2114 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
09da0b32 2115 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2116 __LINE__, __func__));
6faace2a 2117 return 1;
635374e7 2118 }
09da0b32 2119 sas_device->volume_handle = volume_handle;
2120 sas_device->volume_wwid = volume_wwid;
2121 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
2122 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
2123 ssp_target = 1;
2124 ds = "SSP";
2125 } else {
2126 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
2127 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
2128 ds = "STP";
2129 else if (sas_device->device_info &
2130 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
2131 ds = "SATA";
2132 }
2133 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
2134 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
2135 ds, sas_device->handle,
2136 (unsigned long long)sas_device->sas_address,
2137 sas_device->phy,
2138 (unsigned long long)sas_device->device_name);
2139 sdev_printk(KERN_INFO, sdev, "%s: "
2140 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
2141 (unsigned long long) sas_device->enclosure_logical_id,
2142 sas_device->slot);
2143
2144 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2145 if (!ssp_target)
2146 _scsih_display_sata_capabilities(ioc, handle, sdev);
2147
635374e7 2148
e881a172 2149 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
635374e7 2150
84f0b04a 2151 if (ssp_target) {
635374e7 2152 sas_read_port_mode_page(sdev);
84f0b04a
KD		 2153 _scsih_enable_tlr(ioc, sdev);
2154 }
635374e7
EM		 2155 return 0;
2156}
2157
2158/**
d5d135b3 2159 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
635374e7
EM		 2160 * @sdev: scsi device struct
2161 * @bdev: pointer to block device context
2162 * @capacity: device size (in 512 byte sectors)
2163 * @params: three element array to place output:
2164 * params[0] number of heads (max 255)
2165 * params[1] number of sectors (max 63)
2166 * params[2] number of cylinders
2167 *
2168 * Return nothing.
2169 */
2170static int
d5d135b3 2171_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
635374e7
EM		 2172 sector_t capacity, int params[])
2173{
2174 int heads;
2175 int sectors;
2176 sector_t cylinders;
2177 ulong dummy;
2178
2179 heads = 64;
2180 sectors = 32;
2181
2182 dummy = heads * sectors;
2183 cylinders = capacity;
2184 sector_div(cylinders, dummy);
2185
2186 /*
2187 * Handle extended translation size for logical drives
2188 * > 1Gb
2189 */
2190 if ((ulong)capacity >= 0x200000) {
2191 heads = 255;
2192 sectors = 63;
2193 dummy = heads * sectors;
2194 cylinders = capacity;
2195 sector_div(cylinders, dummy);
2196 }
2197
2198 /* return result */
2199 params[0] = heads;
2200 params[1] = sectors;
2201 params[2] = cylinders;
2202
2203 return 0;
2204}
2205
2206/**
2207 * _scsih_response_code - translation of device response code
2208 * @ioc: per adapter object
2209 * @response_code: response code returned by the device
2210 *
2211 * Return nothing.
2212 */
2213static void
2214_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
2215{
2216 char *desc;
2217
2218 switch (response_code) {
2219 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
2220 desc = "task management request completed";
2221 break;
2222 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
2223 desc = "invalid frame";
2224 break;
2225 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2226 desc = "task management request not supported";
2227 break;
2228 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
2229 desc = "task management request failed";
2230 break;
2231 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2232 desc = "task management request succeeded";
2233 break;
2234 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2235 desc = "invalid lun";
2236 break;
2237 case 0xA:
2238 desc = "overlapped tag attempted";
2239 break;
2240 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2241 desc = "task queued, however not sent to target";
2242 break;
2243 default:
2244 desc = "unknown";
2245 break;
2246 }
2247 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
2248 ioc->name, response_code, desc);
2249}
2250
2251/**
d5d135b3 2252 * _scsih_tm_done - tm completion routine
635374e7
EM		 2253 * @ioc: per adapter object
2254 * @smid: system request message index
7b936b02 2255 * @msix_index: MSIX table index supplied by the OS
635374e7
EM		 2256 * @reply: reply message frame(lower 32bit addr)
2257 * Context: none.
2258 *
2259 * The callback handler when using scsih_issue_tm.
2260 *
77e63ed4
KD		 2261 * Return 1 meaning mf should be freed from _base_interrupt
2262 * 0 means the mf is freed from this function.
635374e7 2263 */
77e63ed4 2264static u8
7b936b02 2265_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
635374e7
EM		 2266{
2267 MPI2DefaultReply_t *mpi_reply;
2268
2269 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
77e63ed4 2270 return 1;
635374e7 2271 if (ioc->tm_cmds.smid != smid)
77e63ed4 2272 return 1;
911ae943 2273 mpt2sas_base_flush_reply_queues(ioc);
635374e7
EM		 2274 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
2275 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
2276 if (mpi_reply) {
2277 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
2278 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
2279 }
2280 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
2281 complete(&ioc->tm_cmds.done);
77e63ed4 2282 return 1;
635374e7
EM		 2283}
2284
2285/**
2286 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
2287 * @ioc: per adapter object
2288 * @handle: device handle
2289 *
2290 * During taskmangement request, we need to freeze the device queue.
2291 */
2292void
2293mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2294{
2295 struct MPT2SAS_DEVICE *sas_device_priv_data;
2296 struct scsi_device *sdev;
2297 u8 skip = 0;
2298
2299 shost_for_each_device(sdev, ioc->shost) {
2300 if (skip)
2301 continue;
2302 sas_device_priv_data = sdev->hostdata;
2303 if (!sas_device_priv_data)
2304 continue;
2305 if (sas_device_priv_data->sas_target->handle == handle) {
2306 sas_device_priv_data->sas_target->tm_busy = 1;
2307 skip = 1;
2308 ioc->ignore_loginfos = 1;
2309 }
2310 }
2311}
2312
2313/**
2314 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
2315 * @ioc: per adapter object
2316 * @handle: device handle
2317 *
2318 * During taskmangement request, we need to freeze the device queue.
2319 */
2320void
2321mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2322{
2323 struct MPT2SAS_DEVICE *sas_device_priv_data;
2324 struct scsi_device *sdev;
2325 u8 skip = 0;
2326
2327 shost_for_each_device(sdev, ioc->shost) {
2328 if (skip)
2329 continue;
2330 sas_device_priv_data = sdev->hostdata;
2331 if (!sas_device_priv_data)
2332 continue;
2333 if (sas_device_priv_data->sas_target->handle == handle) {
2334 sas_device_priv_data->sas_target->tm_busy = 0;
2335 skip = 1;
2336 ioc->ignore_loginfos = 0;
2337 }
2338 }
2339}
2340
8ed9a03a 2341
635374e7
EM		 2342/**
2343 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
2344 * @ioc: per adapter struct
2345 * @device_handle: device handle
8ed9a03a
KD		 2346 * @channel: the channel assigned by the OS
2347 * @id: the id assigned by the OS
635374e7
EM		 2348 * @lun: lun number
2349 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
2350 * @smid_task: smid assigned to the task
2351 * @timeout: timeout in seconds
f93213de
KD		 2352 * @serial_number: the serial_number from scmd
2353 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
8ed9a03a 2354 * Context: user
635374e7
EM		 2355 *
2356 * A generic API for sending task management requests to firmware.
2357 *
635374e7
EM		 2358 * The callback index is set inside `ioc->tm_cb_idx`.
2359 *
8ed9a03a 2360 * Return SUCCESS or FAILED.
635374e7 2361 */
8ed9a03a
KD		 2362int
2363mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
2364 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
f93213de 2365 unsigned long serial_number, enum mutex_type m_type)
635374e7
EM		 2366{
2367 Mpi2SCSITaskManagementRequest_t *mpi_request;
2368 Mpi2SCSITaskManagementReply_t *mpi_reply;
2369 u16 smid = 0;
2370 u32 ioc_state;
2371 unsigned long timeleft;
f93213de 2372 struct scsiio_tracker *scsi_lookup = NULL;
8ed9a03a 2373 int rc;
635374e7 2374
f93213de
KD		 2375 if (m_type == TM_MUTEX_ON)
2376 mutex_lock(&ioc->tm_cmds.mutex);
155dd4c7
KD		 2377 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
2378 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
2379 __func__, ioc->name);
8ed9a03a
KD		 2380 rc = FAILED;
2381 goto err_out;
155dd4c7
KD		 2382 }
2383
3cb5469a
EM		 2384 if (ioc->shost_recovery || ioc->remove_host ||
2385 ioc->pci_error_recovery) {
635374e7
EM		 2386 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
2387 __func__, ioc->name);
8ed9a03a
KD		 2388 rc = FAILED;
2389 goto err_out;
635374e7 2390 }
635374e7
EM		 2391
2392 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
2393 if (ioc_state & MPI2_DOORBELL_USED) {
eabb08ad 2394 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
635374e7 2395 "active!\n", ioc->name));
f93213de 2396 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8ed9a03a 2397 FORCE_BIG_HAMMER);
f93213de 2398 rc = (!rc) ? SUCCESS : FAILED;
8ed9a03a 2399 goto err_out;
635374e7
EM		 2400 }
2401
2402 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2403 mpt2sas_base_fault_info(ioc, ioc_state &
2404 MPI2_DOORBELL_DATA_MASK);
f93213de 2405 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8ed9a03a 2406 FORCE_BIG_HAMMER);
f93213de 2407 rc = (!rc) ? SUCCESS : FAILED;
8ed9a03a 2408 goto err_out;
635374e7
EM		 2409 }
2410
595bb0bd 2411 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
635374e7
EM		 2412 if (!smid) {
2413 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2414 ioc->name, __func__);
8ed9a03a
KD		 2415 rc = FAILED;
2416 goto err_out;
635374e7
EM		 2417 }
2418
f93213de
KD		 2419 if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
2420 scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
2421
635374e7 2422 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
595bb0bd
KD		 2423 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
2424 smid_task));
635374e7
EM		 2425 ioc->tm_cmds.status = MPT2_CMD_PENDING;
2426 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2427 ioc->tm_cmds.smid = smid;
2428 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
f93213de 2429 memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
635374e7
EM		 2430 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2431 mpi_request->DevHandle = cpu_to_le16(handle);
2432 mpi_request->TaskType = type;
2433 mpi_request->TaskMID = cpu_to_le16(smid_task);
2434 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2435 mpt2sas_scsih_set_tm_flag(ioc, handle);
5b768581 2436 init_completion(&ioc->tm_cmds.done);
7b936b02 2437 mpt2sas_base_put_smid_hi_priority(ioc, smid);
635374e7 2438 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
635374e7
EM		 2439 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
2440 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2441 ioc->name, __func__);
2442 _debug_dump_mf(mpi_request,
2443 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
8ed9a03a 2444 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
f93213de 2445 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8ed9a03a 2446 FORCE_BIG_HAMMER);
f93213de 2447 rc = (!rc) ? SUCCESS : FAILED;
8ed9a03a
KD		 2448 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2449 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2450 goto err_out;
2451 }
635374e7
EM		 2452 }
2453
2454 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
2455 mpi_reply = ioc->tm_cmds.reply;
2456 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
2457 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2458 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2459 le32_to_cpu(mpi_reply->IOCLogInfo),
2460 le32_to_cpu(mpi_reply->TerminationCount)));
8ed9a03a 2461 if (ioc->logging_level & MPT_DEBUG_TM) {
635374e7 2462 _scsih_response_code(ioc, mpi_reply->ResponseCode);
8ed9a03a
KD		 2463 if (mpi_reply->IOCStatus)
2464 _debug_dump_mf(mpi_request,
2465 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2466 }
635374e7 2467 }
8ed9a03a 2468
8ed9a03a
KD		 2469 switch (type) {
2470 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
f93213de
KD		 2471 rc = SUCCESS;
2472 if (scsi_lookup->scmd == NULL)
2473 break;
2474 rc = FAILED;
8ed9a03a
KD		 2475 break;
2476
2477 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2478 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2479 rc = FAILED;
2480 else
2481 rc = SUCCESS;
2482 break;
2483
f93213de 2484 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
8ed9a03a
KD		 2485 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2486 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2487 rc = FAILED;
2488 else
2489 rc = SUCCESS;
2490 break;
f93213de
KD		 2491 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
2492 rc = SUCCESS;
2493 break;
2494 default:
2495 rc = FAILED;
2496 break;
8ed9a03a
KD		 2497 }
2498
8ed9a03a
KD		 2499 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2500 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
f93213de
KD		 2501 if (m_type == TM_MUTEX_ON)
2502 mutex_unlock(&ioc->tm_cmds.mutex);
8ed9a03a
KD		 2503
2504 return rc;
2505
2506 err_out:
f93213de
KD		 2507 if (m_type == TM_MUTEX_ON)
2508 mutex_unlock(&ioc->tm_cmds.mutex);
8ed9a03a 2509 return rc;
635374e7
EM		 2510}
2511
8e864a81
KD		 2512/**
2513 * _scsih_tm_display_info - displays info about the device
2514 * @ioc: per adapter struct
2515 * @scmd: pointer to scsi command object
2516 *
2517 * Called by task management callback handlers.
2518 */
2519static void
2520_scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2521{
2522 struct scsi_target *starget = scmd->device->sdev_target;
2523 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
2524 struct _sas_device *sas_device = NULL;
2525 unsigned long flags;
0bdccdb0 2526 char *device_str = NULL;
8e864a81
KD		 2527
2528 if (!priv_target)
2529 return;
0bdccdb0
KD		 2530 if (ioc->hide_ir_msg)
2531 device_str = "WarpDrive";
2532 else
2533 device_str = "volume";
8e864a81
KD		 2534
2535 scsi_print_command(scmd);
2536 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
0bdccdb0
KD		 2537 starget_printk(KERN_INFO, starget, "%s handle(0x%04x), "
2538 "%s wwid(0x%016llx)\n", device_str, priv_target->handle,
2539 device_str, (unsigned long long)priv_target->sas_address);
8e864a81
KD		 2540 } else {
2541 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2542 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2543 priv_target->sas_address);
2544 if (sas_device) {
2545 if (priv_target->flags &
2546 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2547 starget_printk(KERN_INFO, starget,
2548 "volume handle(0x%04x), "
2549 "volume wwid(0x%016llx)\n",
2550 sas_device->volume_handle,
2551 (unsigned long long)sas_device->volume_wwid);
2552 }
2553 starget_printk(KERN_INFO, starget,
2554 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2555 sas_device->handle,
2556 (unsigned long long)sas_device->sas_address,
2557 sas_device->phy);
2558 starget_printk(KERN_INFO, starget,
2559 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2560 (unsigned long long)sas_device->enclosure_logical_id,
2561 sas_device->slot);
2562 }
2563 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2564 }
2565}
2566
635374e7 2567/**
d5d135b3 2568 * _scsih_abort - eh threads main abort routine
8e864a81 2569 * @scmd: pointer to scsi command object
635374e7
EM		 2570 *
2571 * Returns SUCCESS if command aborted else FAILED
2572 */
2573static int
d5d135b3 2574_scsih_abort(struct scsi_cmnd *scmd)
635374e7
EM		 2575{
2576 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2577 struct MPT2SAS_DEVICE *sas_device_priv_data;
2578 u16 smid;
2579 u16 handle;
2580 int r;
635374e7 2581
8e864a81
KD		 2582 sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
2583 "scmd(%p)\n", scmd);
2584 _scsih_tm_display_info(ioc, scmd);
635374e7
EM		 2585
2586 sas_device_priv_data = scmd->device->hostdata;
2587 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
8e864a81
KD		 2588 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
2589 "scmd(%p)\n", scmd);
635374e7
EM		 2590 scmd->result = DID_NO_CONNECT << 16;
2591 scmd->scsi_done(scmd);
2592 r = SUCCESS;
2593 goto out;
2594 }
2595
2596 /* search for the command */
2597 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2598 if (!smid) {
2599 scmd->result = DID_RESET << 16;
2600 r = SUCCESS;
2601 goto out;
2602 }
2603
2604 /* for hidden raid components and volumes this is not supported */
2605 if (sas_device_priv_data->sas_target->flags &
2606 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2607 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2608 scmd->result = DID_RESET << 16;
2609 r = FAILED;
2610 goto out;
2611 }
2612
fa7f3167
KD		 2613 mpt2sas_halt_firmware(ioc);
2614
635374e7 2615 handle = sas_device_priv_data->sas_target->handle;
8ed9a03a
KD		 2616 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2617 scmd->device->id, scmd->device->lun,
f93213de
KD		 2618 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
2619 scmd->serial_number, TM_MUTEX_ON);
635374e7
EM		 2620
2621 out:
8e864a81
KD		 2622 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
2623 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
635374e7
EM		 2624 return r;
2625}
2626
635374e7 2627/**
d5d135b3 2628 * _scsih_dev_reset - eh threads main device reset routine
8e864a81 2629 * @scmd: pointer to scsi command object
635374e7
EM		 2630 *
2631 * Returns SUCCESS if command aborted else FAILED
2632 */
2633static int
d5d135b3 2634_scsih_dev_reset(struct scsi_cmnd *scmd)
635374e7
EM		 2635{
2636 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2637 struct MPT2SAS_DEVICE *sas_device_priv_data;
2638 struct _sas_device *sas_device;
2639 unsigned long flags;
2640 u16 handle;
2641 int r;
2642
8e864a81
KD		 2643 struct scsi_target *starget = scmd->device->sdev_target;
2644
37aaa78b 2645 starget_printk(KERN_INFO, starget, "attempting device reset! "
8e864a81
KD		 2646 "scmd(%p)\n", scmd);
2647 _scsih_tm_display_info(ioc, scmd);
635374e7
EM		 2648
2649 sas_device_priv_data = scmd->device->hostdata;
2650 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
37aaa78b 2651 starget_printk(KERN_INFO, starget, "device been deleted! "
8e864a81 2652 "scmd(%p)\n", scmd);
635374e7
EM		 2653 scmd->result = DID_NO_CONNECT << 16;
2654 scmd->scsi_done(scmd);
2655 r = SUCCESS;
2656 goto out;
2657 }
2658
2659 /* for hidden raid components obtain the volume_handle */
2660 handle = 0;
2661 if (sas_device_priv_data->sas_target->flags &
2662 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2663 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2664 sas_device = _scsih_sas_device_find_by_handle(ioc,
2665 sas_device_priv_data->sas_target->handle);
2666 if (sas_device)
2667 handle = sas_device->volume_handle;
2668 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2669 } else
2670 handle = sas_device_priv_data->sas_target->handle;
2671
2672 if (!handle) {
2673 scmd->result = DID_RESET << 16;
2674 r = FAILED;
2675 goto out;
2676 }
2677
8ed9a03a
KD		 2678 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2679 scmd->device->id, scmd->device->lun,
f93213de
KD		 2680 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
2681 TM_MUTEX_ON);
993e0da7
EM		 2682
2683 out:
8e864a81
KD		 2684 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2685 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
993e0da7
EM		 2686 return r;
2687}
2688
2689/**
d5d135b3 2690 * _scsih_target_reset - eh threads main target reset routine
8e864a81 2691 * @scmd: pointer to scsi command object
993e0da7
EM		 2692 *
2693 * Returns SUCCESS if command aborted else FAILED
2694 */
2695static int
d5d135b3 2696_scsih_target_reset(struct scsi_cmnd *scmd)
993e0da7
EM		 2697{
2698 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2699 struct MPT2SAS_DEVICE *sas_device_priv_data;
2700 struct _sas_device *sas_device;
2701 unsigned long flags;
2702 u16 handle;
2703 int r;
8e864a81 2704 struct scsi_target *starget = scmd->device->sdev_target;
993e0da7 2705
8e864a81
KD		 2706 starget_printk(KERN_INFO, starget, "attempting target reset! "
2707 "scmd(%p)\n", scmd);
2708 _scsih_tm_display_info(ioc, scmd);
993e0da7
EM		 2709
2710 sas_device_priv_data = scmd->device->hostdata;
2711 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
8e864a81
KD		 2712 starget_printk(KERN_INFO, starget, "target been deleted! "
2713 "scmd(%p)\n", scmd);
993e0da7
EM		 2714 scmd->result = DID_NO_CONNECT << 16;
2715 scmd->scsi_done(scmd);
2716 r = SUCCESS;
2717 goto out;
2718 }
2719
2720 /* for hidden raid components obtain the volume_handle */
2721 handle = 0;
2722 if (sas_device_priv_data->sas_target->flags &
2723 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2724 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2725 sas_device = _scsih_sas_device_find_by_handle(ioc,
2726 sas_device_priv_data->sas_target->handle);
2727 if (sas_device)
2728 handle = sas_device->volume_handle;
2729 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2730 } else
2731 handle = sas_device_priv_data->sas_target->handle;
2732
2733 if (!handle) {
2734 scmd->result = DID_RESET << 16;
2735 r = FAILED;
2736 goto out;
2737 }
2738
8ed9a03a
KD		 2739 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2740 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
f93213de 2741 30, 0, TM_MUTEX_ON);
635374e7
EM		 2742
2743 out:
8e864a81
KD		 2744 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2745 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
635374e7
EM		 2746 return r;
2747}
2748
2749/**
595bb0bd 2750 * _scsih_host_reset - eh threads main host reset routine
8e864a81 2751 * @scmd: pointer to scsi command object
635374e7
EM		 2752 *
2753 * Returns SUCCESS if command aborted else FAILED
2754 */
2755static int
d5d135b3 2756_scsih_host_reset(struct scsi_cmnd *scmd)
635374e7
EM		 2757{
2758 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2759 int r, retval;
2760
2761 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2762 ioc->name, scmd);
2763 scsi_print_command(scmd);
2764
2765 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2766 FORCE_BIG_HAMMER);
2767 r = (retval < 0) ? FAILED : SUCCESS;
2768 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2769 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2770
2771 return r;
2772}
2773
2774/**
2775 * _scsih_fw_event_add - insert and queue up fw_event
2776 * @ioc: per adapter object
2777 * @fw_event: object describing the event
2778 * Context: This function will acquire ioc->fw_event_lock.
2779 *
2780 * This adds the firmware event object into link list, then queues it up to
2781 * be processed from user context.
2782 *
2783 * Return nothing.
2784 */
2785static void
2786_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2787{
2788 unsigned long flags;
2789
2790 if (ioc->firmware_event_thread == NULL)
2791 return;
2792
2793 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2794 list_add_tail(&fw_event->list, &ioc->fw_event_list);
f1c35e6a
KD		 2795 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2796 queue_delayed_work(ioc->firmware_event_thread,
2797 &fw_event->delayed_work, 0);
635374e7
EM		 2798 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2799}
2800
2801/**
2802 * _scsih_fw_event_free - delete fw_event
2803 * @ioc: per adapter object
2804 * @fw_event: object describing the event
2805 * Context: This function will acquire ioc->fw_event_lock.
2806 *
2807 * This removes firmware event object from link list, frees associated memory.
2808 *
2809 * Return nothing.
2810 */
2811static void
2812_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2813 *fw_event)
2814{
2815 unsigned long flags;
2816
2817 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2818 list_del(&fw_event->list);
2819 kfree(fw_event->event_data);
2820 kfree(fw_event);
2821 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2822}
2823
f1c35e6a 2824
635374e7 2825/**
921cd802 2826 * _scsih_error_recovery_delete_devices - remove devices not responding
635374e7 2827 * @ioc: per adapter object
635374e7
EM		 2828 *
2829 * Return nothing.
2830 */
2831static void
921cd802 2832_scsih_error_recovery_delete_devices(struct MPT2SAS_ADAPTER *ioc)
635374e7 2833{
f1c35e6a 2834 struct fw_event_work *fw_event;
635374e7 2835
921cd802 2836 if (ioc->is_driver_loading)
f1c35e6a 2837 return;
181a9d79
DC		 2838
2839 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2840 if (!fw_event)
2841 return;
2842
921cd802 2843 fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES;
2844 fw_event->ioc = ioc;
2845 _scsih_fw_event_add(ioc, fw_event);
2846}
2847
2848/**
2849 * mpt2sas_port_enable_complete - port enable completed (fake event)
2850 * @ioc: per adapter object
2851 *
2852 * Return nothing.
2853 */
2854void
2855mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc)
2856{
2857 struct fw_event_work *fw_event;
2858
f1c35e6a
KD		 2859 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2860 if (!fw_event)
2861 return;
921cd802 2862 fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE;
f1c35e6a
KD		 2863 fw_event->ioc = ioc;
2864 _scsih_fw_event_add(ioc, fw_event);
635374e7
EM		 2865}
2866
2867/**
f1c35e6a 2868 * _scsih_fw_event_cleanup_queue - cleanup event queue
635374e7
EM		 2869 * @ioc: per adapter object
2870 *
f1c35e6a
KD		 2871 * Walk the firmware event queue, either killing timers, or waiting
2872 * for outstanding events to complete
635374e7
EM		 2873 *
2874 * Return nothing.
2875 */
2876static void
f1c35e6a 2877_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
635374e7 2878{
f1c35e6a 2879 struct fw_event_work *fw_event, *next;
635374e7 2880
f1c35e6a
KD		 2881 if (list_empty(&ioc->fw_event_list) ||
2882 !ioc->firmware_event_thread || in_interrupt())
2883 return;
635374e7 2884
f1c35e6a
KD		 2885 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2886 if (cancel_delayed_work(&fw_event->delayed_work)) {
2887 _scsih_fw_event_free(ioc, fw_event);
2888 continue;
2889 }
2890 fw_event->cancel_pending_work = 1;
2891 }
635374e7
EM		 2892}
2893
f93213de
KD		 2894/**
2895 * _scsih_ublock_io_all_device - unblock every device
2896 * @ioc: per adapter object
2897 *
2898 * change the device state from block to running
2899 */
2900static void
2901_scsih_ublock_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2902{
2903 struct MPT2SAS_DEVICE *sas_device_priv_data;
2904 struct scsi_device *sdev;
2905
2906 shost_for_each_device(sdev, ioc->shost) {
2907 sas_device_priv_data = sdev->hostdata;
2908 if (!sas_device_priv_data)
2909 continue;
2910 if (!sas_device_priv_data->block)
2911 continue;
2912 sas_device_priv_data->block = 0;
2913 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_running, "
2914 "handle(0x%04x)\n",
2915 sas_device_priv_data->sas_target->handle));
5d9fb5cc 2916 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
f93213de
KD		 2917 }
2918}
635374e7
EM		 2919/**
2920 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2921 * @ioc: per adapter object
2922 * @handle: device handle
2923 *
2924 * During device pull we need to appropiately set the sdev state.
2925 */
2926static void
39af7a98 2927_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
635374e7
EM		 2928{
2929 struct MPT2SAS_DEVICE *sas_device_priv_data;
2930 struct scsi_device *sdev;
2931
2932 shost_for_each_device(sdev, ioc->shost) {
2933 sas_device_priv_data = sdev->hostdata;
2934 if (!sas_device_priv_data)
2935 continue;
2936 if (!sas_device_priv_data->block)
2937 continue;
39af7a98 2938 if (sas_device_priv_data->sas_target->sas_address ==
2939 sas_address) {
635374e7
EM		 2940 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2941 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
39af7a98 2942 "sas address(0x%016llx)\n", ioc->name,
2943 (unsigned long long)sas_address));
635374e7 2944 sas_device_priv_data->block = 0;
5d9fb5cc 2945 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
635374e7
EM		 2946 }
2947 }
2948}
2949
f93213de
KD		 2950/**
2951 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
2952 * @ioc: per adapter object
2953 * @handle: device handle
2954 *
2955 * During device pull we need to appropiately set the sdev state.
2956 */
2957static void
2958_scsih_block_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2959{
2960 struct MPT2SAS_DEVICE *sas_device_priv_data;
2961 struct scsi_device *sdev;
2962
2963 shost_for_each_device(sdev, ioc->shost) {
2964 sas_device_priv_data = sdev->hostdata;
2965 if (!sas_device_priv_data)
2966 continue;
2967 if (sas_device_priv_data->block)
2968 continue;
2969 sas_device_priv_data->block = 1;
2970 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_blocked, "
2971 "handle(0x%04x)\n",
2972 sas_device_priv_data->sas_target->handle));
2973 scsi_internal_device_block(sdev);
2974 }
2975}
2976
2977
635374e7
EM		 2978/**
2979 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2980 * @ioc: per adapter object
2981 * @handle: device handle
2982 *
2983 * During device pull we need to appropiately set the sdev state.
2984 */
2985static void
2986_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2987{
2988 struct MPT2SAS_DEVICE *sas_device_priv_data;
2989 struct scsi_device *sdev;
2990
2991 shost_for_each_device(sdev, ioc->shost) {
2992 sas_device_priv_data = sdev->hostdata;
2993 if (!sas_device_priv_data)
2994 continue;
2995 if (sas_device_priv_data->block)
2996 continue;
2997 if (sas_device_priv_data->sas_target->handle == handle) {
2998 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2999 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
3000 "handle(0x%04x)\n", ioc->name, handle));
3001 sas_device_priv_data->block = 1;
34a03bef 3002 scsi_internal_device_block(sdev);
635374e7
EM		 3003 }
3004 }
3005}
3006
3007/**
3008 * _scsih_block_io_to_children_attached_to_ex
3009 * @ioc: per adapter object
3010 * @sas_expander: the sas_device object
3011 *
3012 * This routine set sdev state to SDEV_BLOCK for all devices
3013 * attached to this expander. This function called when expander is
3014 * pulled.
3015 */
3016static void
3017_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
3018 struct _sas_node *sas_expander)
3019{
3020 struct _sas_port *mpt2sas_port;
3021 struct _sas_device *sas_device;
3022 struct _sas_node *expander_sibling;
3023 unsigned long flags;
3024
3025 if (!sas_expander)
3026 return;
3027
3028 list_for_each_entry(mpt2sas_port,
3029 &sas_expander->sas_port_list, port_list) {
3030 if (mpt2sas_port->remote_identify.device_type ==
3031 SAS_END_DEVICE) {
3032 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3033 sas_device =
3034 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3035 mpt2sas_port->remote_identify.sas_address);
09da0b32 3036 if (sas_device)
3037 set_bit(sas_device->handle,
3038 ioc->blocking_handles);
635374e7 3039 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
635374e7
EM		 3040 }
3041 }
3042
3043 list_for_each_entry(mpt2sas_port,
3044 &sas_expander->sas_port_list, port_list) {
3045
3046 if (mpt2sas_port->remote_identify.device_type ==
7f6f794d 3047 SAS_EDGE_EXPANDER_DEVICE ||
635374e7 3048 mpt2sas_port->remote_identify.device_type ==
7f6f794d 3049 SAS_FANOUT_EXPANDER_DEVICE) {
635374e7
EM		 3050 expander_sibling =
3051 mpt2sas_scsih_expander_find_by_sas_address(
3052 ioc, mpt2sas_port->remote_identify.sas_address);
635374e7
EM		 3053 _scsih_block_io_to_children_attached_to_ex(ioc,
3054 expander_sibling);
3055 }
3056 }
3057}
3058
3059/**
3060 * _scsih_block_io_to_children_attached_directly
3061 * @ioc: per adapter object
3062 * @event_data: topology change event data
3063 *
3064 * This routine set sdev state to SDEV_BLOCK for all devices
3065 * direct attached during device pull.
3066 */
3067static void
3068_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
3069 Mpi2EventDataSasTopologyChangeList_t *event_data)
3070{
3071 int i;
3072 u16 handle;
3073 u16 reason_code;
3074 u8 phy_number;
3075
3076 for (i = 0; i < event_data->NumEntries; i++) {
3077 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3078 if (!handle)
3079 continue;
3080 phy_number = event_data->StartPhyNum + i;
3081 reason_code = event_data->PHY[i].PhyStatus &
3082 MPI2_EVENT_SAS_TOPO_RC_MASK;
3083 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
3084 _scsih_block_io_device(ioc, handle);
3085 }
3086}
3087
77e63ed4
KD		 3088/**
3089 * _scsih_tm_tr_send - send task management request
3090 * @ioc: per adapter object
3091 * @handle: device handle
3092 * Context: interrupt time.
3093 *
25985edc 3094 * This code is to initiate the device removal handshake protocol
77e63ed4
KD		 3095 * with controller firmware. This function will issue target reset
3096 * using high priority request queue. It will send a sas iounit
25985edc 3097 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
77e63ed4
KD		 3098 *
3099 * This is designed to send muliple task management request at the same
3100 * time to the fifo. If the fifo is full, we will append the request,
3101 * and process it in a future completion.
3102 */
3103static void
3104_scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3105{
3106 Mpi2SCSITaskManagementRequest_t *mpi_request;
77e63ed4
KD		 3107 u16 smid;
3108 struct _sas_device *sas_device;
f3db032f 3109 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
3110 u64 sas_address = 0;
77e63ed4
KD		 3111 unsigned long flags;
3112 struct _tr_list *delayed_tr;
f881cead 3113 u32 ioc_state;
77e63ed4 3114
f881cead 3115 if (ioc->remove_host) {
3116 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
3117 "removed: handle(0x%04x)\n", __func__, ioc->name, handle));
3118 return;
3119 } else if (ioc->pci_error_recovery) {
3120 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
3121 "error recovery: handle(0x%04x)\n", __func__, ioc->name,
3122 handle));
3123 return;
3124 }
3125 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3126 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3127 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
3128 "operational: handle(0x%04x)\n", __func__, ioc->name,
3129 handle));
77e63ed4
KD		 3130 return;
3131 }
3132
f3eedd69
KD		 3133 /* if PD, then return */
3134 if (test_bit(handle, ioc->pd_handles))
3135 return;
3136
77e63ed4
KD		 3137 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3138 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
f3eedd69
KD		 3139 if (sas_device && sas_device->starget &&
3140 sas_device->starget->hostdata) {
3141 sas_target_priv_data = sas_device->starget->hostdata;
3142 sas_target_priv_data->deleted = 1;
f3db032f 3143 sas_address = sas_device->sas_address;
1278b11f
KD		 3144 }
3145 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
77e63ed4 3146
f3db032f 3147 if (sas_target_priv_data) {
3148 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "setting delete flag: "
3149 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, handle,
3150 (unsigned long long)sas_address));
39af7a98 3151 _scsih_ublock_io_device(ioc, sas_address);
918134ef 3152 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
f3db032f 3153 }
3154
77e63ed4
KD		 3155 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
3156 if (!smid) {
3157 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3158 if (!delayed_tr)
3159 return;
3160 INIT_LIST_HEAD(&delayed_tr->list);
3161 delayed_tr->handle = handle;
1278b11f 3162 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
a28eb222 3163 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
1278b11f
KD		 3164 "DELAYED:tr:handle(0x%04x), (open)\n",
3165 ioc->name, handle));
3166 return;
77e63ed4
KD		 3167 }
3168
1278b11f
KD		 3169 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3170 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3171 ioc->tm_tr_cb_idx));
77e63ed4
KD		 3172 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3173 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3174 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3175 mpi_request->DevHandle = cpu_to_le16(handle);
3176 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
77e63ed4
KD		 3177 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3178}
3179
3180
3181
3182/**
3183 * _scsih_sas_control_complete - completion routine
3184 * @ioc: per adapter object
3185 * @smid: system request message index
3186 * @msix_index: MSIX table index supplied by the OS
3187 * @reply: reply message frame(lower 32bit addr)
3188 * Context: interrupt time.
3189 *
25985edc 3190 * This is the sas iounit control completion routine.
77e63ed4 3191 * This code is part of the code to initiate the device removal
25985edc 3192 * handshake protocol with controller firmware.
77e63ed4
KD		 3193 *
3194 * Return 1 meaning mf should be freed from _base_interrupt
3195 * 0 means the mf is freed from this function.
3196 */
3197static u8
3198_scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3199 u8 msix_index, u32 reply)
3200{
77e63ed4
KD		 3201 Mpi2SasIoUnitControlReply_t *mpi_reply =
3202 mpt2sas_base_get_reply_virt_addr(ioc, reply);
298c794d 3203 if (likely(mpi_reply)) {
3204 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3205 "sc_complete:handle(0x%04x), (open) "
3206 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
3207 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
3208 le16_to_cpu(mpi_reply->IOCStatus),
3209 le32_to_cpu(mpi_reply->IOCLogInfo)));
3210 } else {
3211 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3212 ioc->name, __FILE__, __LINE__, __func__);
3213 }
77e63ed4
KD		 3214 return 1;
3215}
3216
f3eedd69
KD		 3217/**
3218 * _scsih_tm_tr_volume_send - send target reset request for volumes
3219 * @ioc: per adapter object
3220 * @handle: device handle
3221 * Context: interrupt time.
3222 *
3223 * This is designed to send muliple task management request at the same
3224 * time to the fifo. If the fifo is full, we will append the request,
3225 * and process it in a future completion.
3226 */
3227static void
3228_scsih_tm_tr_volume_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3229{
3230 Mpi2SCSITaskManagementRequest_t *mpi_request;
3231 u16 smid;
3232 struct _tr_list *delayed_tr;
3233
3cb5469a
EM		 3234 if (ioc->shost_recovery || ioc->remove_host ||
3235 ioc->pci_error_recovery) {
f3eedd69
KD		 3236 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3237 "progress!\n", __func__, ioc->name));
3238 return;
3239 }
3240
3241 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
3242 if (!smid) {
3243 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3244 if (!delayed_tr)
3245 return;
3246 INIT_LIST_HEAD(&delayed_tr->list);
3247 delayed_tr->handle = handle;
3248 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
3249 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3250 "DELAYED:tr:handle(0x%04x), (open)\n",
3251 ioc->name, handle));
3252 return;
3253 }
3254
3255 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3256 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3257 ioc->tm_tr_volume_cb_idx));
3258 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3259 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3260 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3261 mpi_request->DevHandle = cpu_to_le16(handle);
3262 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3263 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3264}
3265
3266/**
3267 * _scsih_tm_volume_tr_complete - target reset completion
3268 * @ioc: per adapter object
3269 * @smid: system request message index
3270 * @msix_index: MSIX table index supplied by the OS
3271 * @reply: reply message frame(lower 32bit addr)
3272 * Context: interrupt time.
3273 *
3274 * Return 1 meaning mf should be freed from _base_interrupt
3275 * 0 means the mf is freed from this function.
3276 */
3277static u8
3278_scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3279 u8 msix_index, u32 reply)
3280{
3281 u16 handle;
3282 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3283 Mpi2SCSITaskManagementReply_t *mpi_reply =
3284 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3285
3cb5469a
EM		 3286 if (ioc->shost_recovery || ioc->remove_host ||
3287 ioc->pci_error_recovery) {
f3eedd69
KD		 3288 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3289 "progress!\n", __func__, ioc->name));
3290 return 1;
3291 }
298c794d 3292 if (unlikely(!mpi_reply)) {
3293 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3294 ioc->name, __FILE__, __LINE__, __func__);
3295 return 1;
3296 }
f3eedd69
KD		 3297 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3298 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3299 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3300 dewtprintk(ioc, printk("spurious interrupt: "
3301 "handle(0x%04x:0x%04x), smid(%d)!!!\n", handle,
3302 le16_to_cpu(mpi_reply->DevHandle), smid));
3303 return 0;
3304 }
3305
3306 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3307 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3308 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3309 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3310 le32_to_cpu(mpi_reply->IOCLogInfo),
3311 le32_to_cpu(mpi_reply->TerminationCount)));
3312
3313 return _scsih_check_for_pending_tm(ioc, smid);
3314}
3315
77e63ed4
KD		 3316/**
3317 * _scsih_tm_tr_complete -
3318 * @ioc: per adapter object
3319 * @smid: system request message index
3320 * @msix_index: MSIX table index supplied by the OS
3321 * @reply: reply message frame(lower 32bit addr)
3322 * Context: interrupt time.
3323 *
3324 * This is the target reset completion routine.
3325 * This code is part of the code to initiate the device removal
25985edc
LDM		 3326 * handshake protocol with controller firmware.
3327 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
77e63ed4
KD		 3328 *
3329 * Return 1 meaning mf should be freed from _base_interrupt
3330 * 0 means the mf is freed from this function.
3331 */
3332static u8
3333_scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
3334 u32 reply)
3335{
77e63ed4 3336 u16 handle;
1278b11f 3337 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
77e63ed4
KD		 3338 Mpi2SCSITaskManagementReply_t *mpi_reply =
3339 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3340 Mpi2SasIoUnitControlRequest_t *mpi_request;
3341 u16 smid_sas_ctrl;
f881cead 3342 u32 ioc_state;
77e63ed4 3343
f881cead 3344 if (ioc->remove_host) {
3345 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
3346 "removed\n", __func__, ioc->name));
3347 return 1;
3348 } else if (ioc->pci_error_recovery) {
3349 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
3350 "error recovery\n", __func__, ioc->name));
3351 return 1;
3352 }
3353 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3354 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3355 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
3356 "operational\n", __func__, ioc->name));
1278b11f 3357 return 1;
77e63ed4 3358 }
298c794d 3359 if (unlikely(!mpi_reply)) {
3360 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3361 ioc->name, __FILE__, __LINE__, __func__);
3362 return 1;
3363 }
1278b11f
KD		 3364 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3365 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3366 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3367 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
3368 "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
3369 le16_to_cpu(mpi_reply->DevHandle), smid));
3370 return 0;
77e63ed4
KD		 3371 }
3372
1278b11f
KD		 3373 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3374 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3375 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3376 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3377 le32_to_cpu(mpi_reply->IOCLogInfo),
3378 le32_to_cpu(mpi_reply->TerminationCount)));
3379
77e63ed4
KD		 3380 smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
3381 if (!smid_sas_ctrl) {
3382 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3383 ioc->name, __func__);
1278b11f 3384 return 1;
77e63ed4
KD		 3385 }
3386
1278b11f
KD		 3387 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
3388 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
3389 ioc->tm_sas_control_cb_idx));
77e63ed4
KD		 3390 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
3391 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3392 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3393 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
1278b11f 3394 mpi_request->DevHandle = mpi_request_tm->DevHandle;
77e63ed4 3395 mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
1278b11f 3396
f3eedd69
KD		 3397 return _scsih_check_for_pending_tm(ioc, smid);
3398}
3399
3400/**
3401 * _scsih_check_for_pending_tm - check for pending task management
3402 * @ioc: per adapter object
3403 * @smid: system request message index
3404 *
3405 * This will check delayed target reset list, and feed the
3406 * next reqeust.
3407 *
3408 * Return 1 meaning mf should be freed from _base_interrupt
3409 * 0 means the mf is freed from this function.
3410 */
3411static u8
3412_scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3413{
3414 struct _tr_list *delayed_tr;
3415
3416 if (!list_empty(&ioc->delayed_tr_volume_list)) {
3417 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
3418 struct _tr_list, list);
3419 mpt2sas_base_free_smid(ioc, smid);
3420 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
3421 list_del(&delayed_tr->list);
3422 kfree(delayed_tr);
3423 return 0;
3424 }
3425
1278b11f
KD		 3426 if (!list_empty(&ioc->delayed_tr_list)) {
3427 delayed_tr = list_entry(ioc->delayed_tr_list.next,
3428 struct _tr_list, list);
3429 mpt2sas_base_free_smid(ioc, smid);
3430 _scsih_tm_tr_send(ioc, delayed_tr->handle);
3431 list_del(&delayed_tr->list);
3432 kfree(delayed_tr);
f3eedd69 3433 return 0;
1278b11f 3434 }
f3eedd69 3435
1278b11f 3436 return 1;
77e63ed4
KD		 3437}
3438
635374e7
EM		 3439/**
3440 * _scsih_check_topo_delete_events - sanity check on topo events
3441 * @ioc: per adapter object
3442 * @event_data: the event data payload
3443 *
3444 * This routine added to better handle cable breaker.
3445 *
25985edc 3446 * This handles the case where driver receives multiple expander
635374e7
EM		 3447 * add and delete events in a single shot. When there is a delete event
3448 * the routine will void any pending add events waiting in the event queue.
3449 *
3450 * Return nothing.
3451 */
3452static void
3453_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
3454 Mpi2EventDataSasTopologyChangeList_t *event_data)
3455{
3456 struct fw_event_work *fw_event;
3457 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
3458 u16 expander_handle;
3459 struct _sas_node *sas_expander;
3460 unsigned long flags;
77e63ed4
KD		 3461 int i, reason_code;
3462 u16 handle;
3463
3464 for (i = 0 ; i < event_data->NumEntries; i++) {
77e63ed4
KD		 3465 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3466 if (!handle)
3467 continue;
3468 reason_code = event_data->PHY[i].PhyStatus &
3469 MPI2_EVENT_SAS_TOPO_RC_MASK;
3470 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
3471 _scsih_tm_tr_send(ioc, handle);
3472 }
635374e7
EM		 3473
3474 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3475 if (expander_handle < ioc->sas_hba.num_phys) {
3476 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3477 return;
3478 }
09da0b32 3479 if (event_data->ExpStatus ==
3480 MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
3481 /* put expander attached devices into blocking state */
635374e7
EM		 3482 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3483 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3484 expander_handle);
635374e7 3485 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
09da0b32 3486 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3487 do {
3488 handle = find_first_bit(ioc->blocking_handles,
3489 ioc->facts.MaxDevHandle);
3490 if (handle < ioc->facts.MaxDevHandle)
3491 _scsih_block_io_device(ioc, handle);
3492 } while (test_and_clear_bit(handle, ioc->blocking_handles));
635374e7
EM		 3493 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
3494 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3495
3496 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3497 return;
3498
3499 /* mark ignore flag for pending events */
3500 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3501 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3502 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3503 fw_event->ignore)
3504 continue;
3505 local_event_data = fw_event->event_data;
3506 if (local_event_data->ExpStatus ==
3507 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3508 local_event_data->ExpStatus ==
3509 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3510 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3511 expander_handle) {
eabb08ad 3512 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 3513 "setting ignoring flag\n", ioc->name));
3514 fw_event->ignore = 1;
3515 }
3516 }
3517 }
3518 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3519}
3520
f3eedd69
KD		 3521/**
3522 * _scsih_set_volume_delete_flag - setting volume delete flag
3523 * @ioc: per adapter object
3524 * @handle: device handle
3525 *
3526 * This
3527 * Return nothing.
3528 */
3529static void
3530_scsih_set_volume_delete_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3531{
3532 struct _raid_device *raid_device;
3533 struct MPT2SAS_TARGET *sas_target_priv_data;
3534 unsigned long flags;
3535
3536 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3537 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3538 if (raid_device && raid_device->starget &&
3539 raid_device->starget->hostdata) {
3540 sas_target_priv_data =
3541 raid_device->starget->hostdata;
3542 sas_target_priv_data->deleted = 1;
3543 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3544 "setting delete flag: handle(0x%04x), "
3545 "wwid(0x%016llx)\n", ioc->name, handle,
3546 (unsigned long long) raid_device->wwid));
3547 }
3548 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3549}
3550
3551/**
3552 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3553 * @handle: input handle
3554 * @a: handle for volume a
3555 * @b: handle for volume b
3556 *
3557 * IR firmware only supports two raid volumes. The purpose of this
3558 * routine is to set the volume handle in either a or b. When the given
3559 * input handle is non-zero, or when a and b have not been set before.
3560 */
3561static void
3562_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3563{
3564 if (!handle || handle == *a || handle == *b)
3565 return;
3566 if (!*a)
3567 *a = handle;
3568 else if (!*b)
3569 *b = handle;
3570}
3571
3572/**
3573 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3574 * @ioc: per adapter object
3575 * @event_data: the event data payload
3576 * Context: interrupt time.
3577 *
3578 * This routine will send target reset to volume, followed by target
3579 * resets to the PDs. This is called when a PD has been removed, or
3580 * volume has been deleted or removed. When the target reset is sent
3581 * to volume, the PD target resets need to be queued to start upon
3582 * completion of the volume target reset.
3583 *
3584 * Return nothing.
3585 */
3586static void
3587_scsih_check_ir_config_unhide_events(struct MPT2SAS_ADAPTER *ioc,
3588 Mpi2EventDataIrConfigChangeList_t *event_data)
3589{
3590 Mpi2EventIrConfigElement_t *element;
3591 int i;
3592 u16 handle, volume_handle, a, b;
3593 struct _tr_list *delayed_tr;
3594
3595 a = 0;
3596 b = 0;
3597
0bdccdb0
KD		 3598 if (ioc->is_warpdrive)
3599 return;
3600
f3eedd69
KD		 3601 /* Volume Resets for Deleted or Removed */
3602 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3603 for (i = 0; i < event_data->NumElements; i++, element++) {
3604 if (element->ReasonCode ==
3605 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3606 element->ReasonCode ==
3607 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3608 volume_handle = le16_to_cpu(element->VolDevHandle);
3609 _scsih_set_volume_delete_flag(ioc, volume_handle);
3610 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3611 }
3612 }
3613
3614 /* Volume Resets for UNHIDE events */
3615 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3616 for (i = 0; i < event_data->NumElements; i++, element++) {
3617 if (le32_to_cpu(event_data->Flags) &
3618 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3619 continue;
3620 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3621 volume_handle = le16_to_cpu(element->VolDevHandle);
3622 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3623 }
3624 }
3625
3626 if (a)
3627 _scsih_tm_tr_volume_send(ioc, a);
3628 if (b)
3629 _scsih_tm_tr_volume_send(ioc, b);
3630
3631 /* PD target resets */
3632 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3633 for (i = 0; i < event_data->NumElements; i++, element++) {
3634 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3635 continue;
3636 handle = le16_to_cpu(element->PhysDiskDevHandle);
3637 volume_handle = le16_to_cpu(element->VolDevHandle);
3638 clear_bit(handle, ioc->pd_handles);
3639 if (!volume_handle)
3640 _scsih_tm_tr_send(ioc, handle);
3641 else if (volume_handle == a || volume_handle == b) {
3642 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3643 BUG_ON(!delayed_tr);
3644 INIT_LIST_HEAD(&delayed_tr->list);
3645 delayed_tr->handle = handle;
3646 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3647 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3648 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3649 handle));
3650 } else
3651 _scsih_tm_tr_send(ioc, handle);
3652 }
3653}
3654
3655
3656/**
3657 * _scsih_check_volume_delete_events - set delete flag for volumes
3658 * @ioc: per adapter object
3659 * @event_data: the event data payload
3660 * Context: interrupt time.
3661 *
3662 * This will handle the case when the cable connected to entire volume is
3663 * pulled. We will take care of setting the deleted flag so normal IO will
3664 * not be sent.
3665 *
3666 * Return nothing.
3667 */
3668static void
3669_scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
3670 Mpi2EventDataIrVolume_t *event_data)
3671{
3672 u32 state;
3673
3674 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3675 return;
3676 state = le32_to_cpu(event_data->NewValue);
3677 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3678 MPI2_RAID_VOL_STATE_FAILED)
3679 _scsih_set_volume_delete_flag(ioc,
3680 le16_to_cpu(event_data->VolDevHandle));
3681}
3682
635374e7
EM		 3683/**
3684 * _scsih_flush_running_cmds - completing outstanding commands.
3685 * @ioc: per adapter object
3686 *
3687 * The flushing out of all pending scmd commands following host reset,
3688 * where all IO is dropped to the floor.
3689 *
3690 * Return nothing.
3691 */
3692static void
3693_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
3694{
3695 struct scsi_cmnd *scmd;
3696 u16 smid;
3697 u16 count = 0;
3698
595bb0bd 3699 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
ec07a053 3700 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
635374e7
EM		 3701 if (!scmd)
3702 continue;
3703 count++;
3704 mpt2sas_base_free_smid(ioc, smid);
3705 scsi_dma_unmap(scmd);
3cb5469a
EM		 3706 if (ioc->pci_error_recovery)
3707 scmd->result = DID_NO_CONNECT << 16;
3708 else
3709 scmd->result = DID_RESET << 16;
635374e7
EM		 3710 scmd->scsi_done(scmd);
3711 }
3712 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
3713 ioc->name, count));
3714}
3715
3c621b3e
EM		 3716/**
3717 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3718 * @scmd: pointer to scsi command object
3719 * @mpi_request: pointer to the SCSI_IO reqest message frame
3720 *
3721 * Supporting protection 1 and 3.
3722 *
3723 * Returns nothing
3724 */
3725static void
3726_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
3727{
3728 u16 eedp_flags;
3729 unsigned char prot_op = scsi_get_prot_op(scmd);
3730 unsigned char prot_type = scsi_get_prot_type(scmd);
3731
d334aa79 3732 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3c621b3e
EM		 3733 return;
3734
3735 if (prot_op == SCSI_PROT_READ_STRIP)
3736 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3737 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3738 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3739 else
3740 return;
3741
3c621b3e
EM		 3742 switch (prot_type) {
3743 case SCSI_PROT_DIF_TYPE1:
756aca7e 3744 case SCSI_PROT_DIF_TYPE2:
3c621b3e
EM		 3745
3746 /*
3747 * enable ref/guard checking
3748 * auto increment ref tag
3749 */
463217bf 3750 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3c621b3e
EM		 3751 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3752 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3753 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3754 cpu_to_be32(scsi_get_lba(scmd));
d334aa79
EM		 3755 break;
3756
3c621b3e
EM		 3757 case SCSI_PROT_DIF_TYPE3:
3758
3759 /*
3760 * enable guard checking
3761 */
463217bf 3762 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3c621b3e
EM		 3763 break;
3764 }
463217bf
KD		 3765 mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
3766 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3c621b3e
EM		 3767}
3768
3769/**
3770 * _scsih_eedp_error_handling - return sense code for EEDP errors
3771 * @scmd: pointer to scsi command object
3772 * @ioc_status: ioc status
3773 *
3774 * Returns nothing
3775 */
3776static void
3777_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3778{
3779 u8 ascq;
3c621b3e
EM		 3780
3781 switch (ioc_status) {
3782 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3783 ascq = 0x01;
3784 break;
3785 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3786 ascq = 0x02;
3787 break;
3788 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3789 ascq = 0x03;
3790 break;
3791 default:
3792 ascq = 0x00;
3793 break;
3794 }
3795
9b5cd132
MP		 3796 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10, ascq);
3797 scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
3c621b3e
EM		 3798 SAM_STAT_CHECK_CONDITION;
3799}
3800
0bdccdb0
KD		 3801/**
3802 * _scsih_scsi_direct_io_get - returns direct io flag
3803 * @ioc: per adapter object
3804 * @smid: system request message index
3805 *
3806 * Returns the smid stored scmd pointer.
3807 */
3808static inline u8
3809_scsih_scsi_direct_io_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3810{
3811 return ioc->scsi_lookup[smid - 1].direct_io;
3812}
3813
3814/**
3815 * _scsih_scsi_direct_io_set - sets direct io flag
3816 * @ioc: per adapter object
3817 * @smid: system request message index
3818 * @direct_io: Zero or non-zero value to set in the direct_io flag
3819 *
3820 * Returns Nothing.
3821 */
3822static inline void
3823_scsih_scsi_direct_io_set(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 direct_io)
3824{
3825 ioc->scsi_lookup[smid - 1].direct_io = direct_io;
3826}
3827
3828
3829/**
3830 * _scsih_setup_direct_io - setup MPI request for WARPDRIVE Direct I/O
3831 * @ioc: per adapter object
3832 * @scmd: pointer to scsi command object
3833 * @raid_device: pointer to raid device data structure
3834 * @mpi_request: pointer to the SCSI_IO reqest message frame
3835 * @smid: system request message index
3836 *
3837 * Returns nothing
3838 */
3839static void
3840_scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3841 struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request,
3842 u16 smid)
3843{
3844 u32 v_lba, p_lba, stripe_off, stripe_unit, column, io_size;
3845 u32 stripe_sz, stripe_exp;
ba96bd0b 3846 u8 num_pds, *cdb_ptr, i;
0bdccdb0 3847 u8 cdb0 = scmd->cmnd[0];
ba96bd0b 3848 u64 v_llba;
0bdccdb0
KD		 3849
3850 /*
3851 * Try Direct I/O to RAID memeber disks
3852 */
3853 if (cdb0 == READ_16 || cdb0 == READ_10 ||
3854 cdb0 == WRITE_16 || cdb0 == WRITE_10) {
3855 cdb_ptr = mpi_request->CDB.CDB32;
3856
3857 if ((cdb0 < READ_16) || !(cdb_ptr[2] | cdb_ptr[3] | cdb_ptr[4]
3858 | cdb_ptr[5])) {
ba96bd0b 3859 io_size = scsi_bufflen(scmd) >>
3860 raid_device->block_exponent;
3861 i = (cdb0 < READ_16) ? 2 : 6;
0bdccdb0 3862 /* get virtual lba */
ba96bd0b 3863 v_lba = be32_to_cpu(*(__be32 *)(&cdb_ptr[i]));
0bdccdb0
KD		 3864
3865 if (((u64)v_lba + (u64)io_size - 1) <=
3866 (u32)raid_device->max_lba) {
3867 stripe_sz = raid_device->stripe_sz;
3868 stripe_exp = raid_device->stripe_exponent;
3869 stripe_off = v_lba & (stripe_sz - 1);
3870
3871 /* Check whether IO falls within a stripe */
3872 if ((stripe_off + io_size) <= stripe_sz) {
3873 num_pds = raid_device->num_pds;
3874 p_lba = v_lba >> stripe_exp;
3875 stripe_unit = p_lba / num_pds;
3876 column = p_lba % num_pds;
3877 p_lba = (stripe_unit << stripe_exp) +
3878 stripe_off;
3879 mpi_request->DevHandle =
3880 cpu_to_le16(raid_device->
3881 pd_handle[column]);
ba96bd0b 3882 (*(__be32 *)(&cdb_ptr[i])) =
3883 cpu_to_be32(p_lba);
3884 /*
3885 * WD: To indicate this I/O is directI/O
3886 */
3887 _scsih_scsi_direct_io_set(ioc, smid, 1);
3888 }
3889 }
3890 } else {
3891 io_size = scsi_bufflen(scmd) >>
3892 raid_device->block_exponent;
3893 /* get virtual lba */
3894 v_llba = be64_to_cpu(*(__be64 *)(&cdb_ptr[2]));
3895
3896 if ((v_llba + (u64)io_size - 1) <=
3897 raid_device->max_lba) {
3898 stripe_sz = raid_device->stripe_sz;
3899 stripe_exp = raid_device->stripe_exponent;
3900 stripe_off = (u32) (v_llba & (stripe_sz - 1));
3901
3902 /* Check whether IO falls within a stripe */
3903 if ((stripe_off + io_size) <= stripe_sz) {
3904 num_pds = raid_device->num_pds;
3905 p_lba = (u32)(v_llba >> stripe_exp);
3906 stripe_unit = p_lba / num_pds;
3907 column = p_lba % num_pds;
3908 p_lba = (stripe_unit << stripe_exp) +
3909 stripe_off;
3910 mpi_request->DevHandle =
3911 cpu_to_le16(raid_device->
3912 pd_handle[column]);
3913 (*(__be64 *)(&cdb_ptr[2])) =
3914 cpu_to_be64((u64)p_lba);
0bdccdb0
KD		 3915 /*
3916 * WD: To indicate this I/O is directI/O
3917 */
3918 _scsih_scsi_direct_io_set(ioc, smid, 1);
3919 }
3920 }
3921 }
3922 }
3923}
3924
635374e7 3925/**
d5d135b3 3926 * _scsih_qcmd - main scsi request entry point
635374e7
EM		 3927 * @scmd: pointer to scsi command object
3928 * @done: function pointer to be invoked on completion
3929 *
3930 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3931 *
3932 * Returns 0 on success. If there's a failure, return either:
3933 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3934 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3935 */
3936static int
f281233d 3937_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
635374e7
EM		 3938{
3939 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
3940 struct MPT2SAS_DEVICE *sas_device_priv_data;
3941 struct MPT2SAS_TARGET *sas_target_priv_data;
0bdccdb0 3942 struct _raid_device *raid_device;
635374e7
EM		 3943 Mpi2SCSIIORequest_t *mpi_request;
3944 u32 mpi_control;
3945 u16 smid;
635374e7
EM		 3946
3947 scmd->scsi_done = done;
3948 sas_device_priv_data = scmd->device->hostdata;
130b958a 3949 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
635374e7
EM		 3950 scmd->result = DID_NO_CONNECT << 16;
3951 scmd->scsi_done(scmd);
3952 return 0;
3953 }
3954
7821578c 3955 if (ioc->pci_error_recovery || ioc->remove_host) {
3cb5469a
EM		 3956 scmd->result = DID_NO_CONNECT << 16;
3957 scmd->scsi_done(scmd);
3958 return 0;
3959 }
3960
635374e7 3961 sas_target_priv_data = sas_device_priv_data->sas_target;
130b958a
KD		 3962 /* invalid device handle */
3963 if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
635374e7
EM		 3964 scmd->result = DID_NO_CONNECT << 16;
3965 scmd->scsi_done(scmd);
3966 return 0;
3967 }
3968
130b958a
KD		 3969 /* host recovery or link resets sent via IOCTLs */
3970 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
635374e7 3971 return SCSI_MLQUEUE_HOST_BUSY;
65155b37 3972 /* device busy with task management */
130b958a
KD		 3973 else if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
3974 return SCSI_MLQUEUE_DEVICE_BUSY;
3975 /* device has been deleted */
3976 else if (sas_target_priv_data->deleted) {
3977 scmd->result = DID_NO_CONNECT << 16;
3978 scmd->scsi_done(scmd);
3979 return 0;
3980 }
635374e7
EM		 3981
3982 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3983 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3984 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3985 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3986 else
3987 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3988
3989 /* set tags */
3990 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3991 if (scmd->device->tagged_supported) {
3992 if (scmd->device->ordered_tags)
3993 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3994 else
3995 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3996 } else
3997/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
3998/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
3999 */
4000 mpi_control |= (0x500);
4001
4002 } else
4003 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
0bdccdb0
KD		 4004 /* Make sure Device is not raid volume.
4005 * We do not expose raid functionality to upper layer for warpdrive.
4006 */
4007 if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
d334aa79 4008 sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
635374e7
EM		 4009 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
4010
595bb0bd 4011 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
635374e7
EM		 4012 if (!smid) {
4013 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
4014 ioc->name, __func__);
4015 goto out;
4016 }
4017 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
4018 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
3c621b3e 4019 _scsih_setup_eedp(scmd, mpi_request);
d334aa79
EM		 4020 if (scmd->cmd_len == 32)
4021 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
635374e7
EM		 4022 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
4023 if (sas_device_priv_data->sas_target->flags &
4024 MPT_TARGET_FLAGS_RAID_COMPONENT)
4025 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
4026 else
4027 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
4028 mpi_request->DevHandle =
4029 cpu_to_le16(sas_device_priv_data->sas_target->handle);
4030 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
4031 mpi_request->Control = cpu_to_le32(mpi_control);
4032 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
4033 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
4034 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
4035 mpi_request->SenseBufferLowAddress =
ec9472c7 4036 mpt2sas_base_get_sense_buffer_dma(ioc, smid);
635374e7
EM		 4037 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
4038 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
4039 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
7b936b02
KD		 4040 mpi_request->VF_ID = 0; /* TODO */
4041 mpi_request->VP_ID = 0;
635374e7
EM		 4042 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
4043 mpi_request->LUN);
4044 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
4045
4046 if (!mpi_request->DataLength) {
4047 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
4048 } else {
4049 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
4050 mpt2sas_base_free_smid(ioc, smid);
4051 goto out;
4052 }
4053 }
4054
0bdccdb0
KD		 4055 raid_device = sas_target_priv_data->raid_device;
4056 if (raid_device && raid_device->direct_io_enabled)
4057 _scsih_setup_direct_io(ioc, scmd, raid_device, mpi_request,
4058 smid);
4059
58287fd5
KD		 4060 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST))
4061 mpt2sas_base_put_smid_scsi_io(ioc, smid,
0bdccdb0 4062 le16_to_cpu(mpi_request->DevHandle));
58287fd5
KD		 4063 else
4064 mpt2sas_base_put_smid_default(ioc, smid);
635374e7
EM		 4065 return 0;
4066
4067 out:
4068 return SCSI_MLQUEUE_HOST_BUSY;
4069}
4070
f281233d
JG		 4071static DEF_SCSI_QCMD(_scsih_qcmd)
4072
635374e7
EM		 4073/**
4074 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
4075 * @sense_buffer: sense data returned by target
4076 * @data: normalized skey/asc/ascq
4077 *
4078 * Return nothing.
4079 */
4080static void
4081_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
4082{
4083 if ((sense_buffer[0] & 0x7F) >= 0x72) {
4084 /* descriptor format */
4085 data->skey = sense_buffer[1] & 0x0F;
4086 data->asc = sense_buffer[2];
4087 data->ascq = sense_buffer[3];
4088 } else {
4089 /* fixed format */
4090 data->skey = sense_buffer[2] & 0x0F;
4091 data->asc = sense_buffer[12];
4092 data->ascq = sense_buffer[13];
4093 }
4094}
4095
4096#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4097/**
25985edc 4098 * _scsih_scsi_ioc_info - translated non-successful SCSI_IO request
635374e7
EM		 4099 * @ioc: per adapter object
4100 * @scmd: pointer to scsi command object
4101 * @mpi_reply: reply mf payload returned from firmware
4102 *
4103 * scsi_status - SCSI Status code returned from target device
4104 * scsi_state - state info associated with SCSI_IO determined by ioc
4105 * ioc_status - ioc supplied status info
4106 *
4107 * Return nothing.
4108 */
4109static void
4110_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
4111 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
4112{
4113 u32 response_info;
4114 u8 *response_bytes;
4115 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
4116 MPI2_IOCSTATUS_MASK;
4117 u8 scsi_state = mpi_reply->SCSIState;
4118 u8 scsi_status = mpi_reply->SCSIStatus;
4119 char *desc_ioc_state = NULL;
4120 char *desc_scsi_status = NULL;
4121 char *desc_scsi_state = ioc->tmp_string;
be9e8cd7 4122 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
7fbae67a
KD		 4123 struct _sas_device *sas_device = NULL;
4124 unsigned long flags;
8e864a81
KD		 4125 struct scsi_target *starget = scmd->device->sdev_target;
4126 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
0bdccdb0 4127 char *device_str = NULL;
8e864a81
KD		 4128
4129 if (!priv_target)
4130 return;
be9e8cd7 4131
0bdccdb0
KD		 4132 if (ioc->hide_ir_msg)
4133 device_str = "WarpDrive";
4134 else
4135 device_str = "volume";
4136
be9e8cd7
KD		 4137 if (log_info == 0x31170000)
4138 return;
635374e7
EM		 4139
4140 switch (ioc_status) {
4141 case MPI2_IOCSTATUS_SUCCESS:
4142 desc_ioc_state = "success";
4143 break;
4144 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4145 desc_ioc_state = "invalid function";
4146 break;
4147 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4148 desc_ioc_state = "scsi recovered error";
4149 break;
4150 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
4151 desc_ioc_state = "scsi invalid dev handle";
4152 break;
4153 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4154 desc_ioc_state = "scsi device not there";
4155 break;
4156 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4157 desc_ioc_state = "scsi data overrun";
4158 break;
4159 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4160 desc_ioc_state = "scsi data underrun";
4161 break;
4162 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4163 desc_ioc_state = "scsi io data error";
4164 break;
4165 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4166 desc_ioc_state = "scsi protocol error";
4167 break;
4168 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4169 desc_ioc_state = "scsi task terminated";
4170 break;
4171 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4172 desc_ioc_state = "scsi residual mismatch";
4173 break;
4174 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4175 desc_ioc_state = "scsi task mgmt failed";
4176 break;
4177 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4178 desc_ioc_state = "scsi ioc terminated";
4179 break;
4180 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4181 desc_ioc_state = "scsi ext terminated";
4182 break;
3c621b3e
EM		 4183 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4184 desc_ioc_state = "eedp guard error";
4185 break;
4186 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4187 desc_ioc_state = "eedp ref tag error";
4188 break;
4189 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4190 desc_ioc_state = "eedp app tag error";
4191 break;
635374e7
EM		 4192 default:
4193 desc_ioc_state = "unknown";
4194 break;
4195 }
4196
4197 switch (scsi_status) {
4198 case MPI2_SCSI_STATUS_GOOD:
4199 desc_scsi_status = "good";
4200 break;
4201 case MPI2_SCSI_STATUS_CHECK_CONDITION:
4202 desc_scsi_status = "check condition";
4203 break;
4204 case MPI2_SCSI_STATUS_CONDITION_MET:
4205 desc_scsi_status = "condition met";
4206 break;
4207 case MPI2_SCSI_STATUS_BUSY:
4208 desc_scsi_status = "busy";
4209 break;
4210 case MPI2_SCSI_STATUS_INTERMEDIATE:
4211 desc_scsi_status = "intermediate";
4212 break;
4213 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
4214 desc_scsi_status = "intermediate condmet";
4215 break;
4216 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
4217 desc_scsi_status = "reservation conflict";
4218 break;
4219 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
4220 desc_scsi_status = "command terminated";
4221 break;
4222 case MPI2_SCSI_STATUS_TASK_SET_FULL:
4223 desc_scsi_status = "task set full";
4224 break;
4225 case MPI2_SCSI_STATUS_ACA_ACTIVE:
4226 desc_scsi_status = "aca active";
4227 break;
4228 case MPI2_SCSI_STATUS_TASK_ABORTED:
4229 desc_scsi_status = "task aborted";
4230 break;
4231 default:
4232 desc_scsi_status = "unknown";
4233 break;
4234 }
4235
4236 desc_scsi_state[0] = '\0';
4237 if (!scsi_state)
4238 desc_scsi_state = " ";
4239 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4240 strcat(desc_scsi_state, "response info ");
4241 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4242 strcat(desc_scsi_state, "state terminated ");
4243 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
4244 strcat(desc_scsi_state, "no status ");
4245 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
4246 strcat(desc_scsi_state, "autosense failed ");
4247 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
4248 strcat(desc_scsi_state, "autosense valid ");
4249
4250 scsi_print_command(scmd);
7fbae67a 4251
8e864a81 4252 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
0bdccdb0
KD		 4253 printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
4254 device_str, (unsigned long long)priv_target->sas_address);
8e864a81
KD		 4255 } else {
4256 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4257 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4258 priv_target->sas_address);
4259 if (sas_device) {
4260 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
4261 "phy(%d)\n", ioc->name, sas_device->sas_address,
4262 sas_device->phy);
4263 printk(MPT2SAS_WARN_FMT
4264 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
4265 ioc->name, sas_device->enclosure_logical_id,
4266 sas_device->slot);
4267 }
4268 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7fbae67a 4269 }
7fbae67a 4270
8e864a81
KD		 4271 printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
4272 "smid(%d)\n", ioc->name, le16_to_cpu(mpi_reply->DevHandle),
4273 desc_ioc_state, ioc_status, smid);
635374e7
EM		 4274 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
4275 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
4276 scsi_get_resid(scmd));
4277 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
4278 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
4279 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
4280 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
4281 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
4282 scsi_status, desc_scsi_state, scsi_state);
4283
4284 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4285 struct sense_info data;
4286 _scsih_normalize_sense(scmd->sense_buffer, &data);
4287 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
e94f6747
KD		 4288 "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
4289 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
635374e7
EM		 4290 }
4291
4292 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
4293 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
4294 response_bytes = (u8 *)&response_info;
9982f594 4295 _scsih_response_code(ioc, response_bytes[0]);
635374e7
EM		 4296 }
4297}
4298#endif
4299
4300/**
3ace8e05 4301 * _scsih_turn_on_fault_led - illuminate Fault LED
635374e7
EM		 4302 * @ioc: per adapter object
4303 * @handle: device handle
3ace8e05 4304 * Context: process
635374e7
EM		 4305 *
4306 * Return nothing.
4307 */
4308static void
3ace8e05 4309_scsih_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
635374e7
EM		 4310{
4311 Mpi2SepReply_t mpi_reply;
4312 Mpi2SepRequest_t mpi_request;
3ace8e05
KD		 4313
4314 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
4315 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
4316 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
4317 mpi_request.SlotStatus =
4318 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
4319 mpi_request.DevHandle = cpu_to_le16(handle);
4320 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
4321 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
4322 &mpi_request)) != 0) {
4323 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
4324 __FILE__, __LINE__, __func__);
4325 return;
4326 }
4327
4328 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
4329 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "enclosure_processor: "
4330 "ioc_status (0x%04x), loginfo(0x%08x)\n", ioc->name,
4331 le16_to_cpu(mpi_reply.IOCStatus),
4332 le32_to_cpu(mpi_reply.IOCLogInfo)));
4333 return;
4334 }
4335}
4336
4337/**
4338 * _scsih_send_event_to_turn_on_fault_led - fire delayed event
4339 * @ioc: per adapter object
4340 * @handle: device handle
4341 * Context: interrupt.
4342 *
4343 * Return nothing.
4344 */
4345static void
4346_scsih_send_event_to_turn_on_fault_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4347{
4348 struct fw_event_work *fw_event;
4349
4350 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
4351 if (!fw_event)
4352 return;
4353 fw_event->event = MPT2SAS_TURN_ON_FAULT_LED;
4354 fw_event->device_handle = handle;
4355 fw_event->ioc = ioc;
4356 _scsih_fw_event_add(ioc, fw_event);
4357}
4358
4359/**
4360 * _scsih_smart_predicted_fault - process smart errors
4361 * @ioc: per adapter object
4362 * @handle: device handle
4363 * Context: interrupt.
4364 *
4365 * Return nothing.
4366 */
4367static void
4368_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4369{
635374e7
EM		 4370 struct scsi_target *starget;
4371 struct MPT2SAS_TARGET *sas_target_priv_data;
4372 Mpi2EventNotificationReply_t *event_reply;
4373 Mpi2EventDataSasDeviceStatusChange_t *event_data;
4374 struct _sas_device *sas_device;
4375 ssize_t sz;
4376 unsigned long flags;
4377
4378 /* only handle non-raid devices */
4379 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4380 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4381 if (!sas_device) {
4382 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4383 return;
4384 }
4385 starget = sas_device->starget;
4386 sas_target_priv_data = starget->hostdata;
4387
4388 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
4389 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
4390 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4391 return;
4392 }
4393 starget_printk(KERN_WARNING, starget, "predicted fault\n");
4394 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4395
3ace8e05
KD		 4396 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
4397 _scsih_send_event_to_turn_on_fault_led(ioc, handle);
635374e7
EM		 4398
4399 /* insert into event log */
4400 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
4401 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
f6a290b4 4402 event_reply = kzalloc(sz, GFP_ATOMIC);
635374e7
EM		 4403 if (!event_reply) {
4404 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4405 ioc->name, __FILE__, __LINE__, __func__);
4406 return;
4407 }
4408
4409 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
4410 event_reply->Event =
4411 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
4412 event_reply->MsgLength = sz/4;
4413 event_reply->EventDataLength =
4414 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
4415 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
4416 event_reply->EventData;
4417 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
4418 event_data->ASC = 0x5D;
4419 event_data->DevHandle = cpu_to_le16(handle);
4420 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
4421 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
4422 kfree(event_reply);
4423}
4424
4425/**
d5d135b3 4426 * _scsih_io_done - scsi request callback
635374e7
EM		 4427 * @ioc: per adapter object
4428 * @smid: system request message index
7b936b02 4429 * @msix_index: MSIX table index supplied by the OS
635374e7
EM		 4430 * @reply: reply message frame(lower 32bit addr)
4431 *
77e63ed4 4432 * Callback handler when using _scsih_qcmd.
635374e7 4433 *
77e63ed4
KD		 4434 * Return 1 meaning mf should be freed from _base_interrupt
4435 * 0 means the mf is freed from this function.
635374e7 4436 */
77e63ed4 4437static u8
7b936b02 4438_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
635374e7
EM		 4439{
4440 Mpi2SCSIIORequest_t *mpi_request;
4441 Mpi2SCSIIOReply_t *mpi_reply;
4442 struct scsi_cmnd *scmd;
4443 u16 ioc_status;
4444 u32 xfer_cnt;
4445 u8 scsi_state;
4446 u8 scsi_status;
4447 u32 log_info;
4448 struct MPT2SAS_DEVICE *sas_device_priv_data;
9982f594 4449 u32 response_code = 0;
82a45258 4450 unsigned long flags;
635374e7
EM		 4451
4452 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
ec07a053 4453 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
635374e7 4454 if (scmd == NULL)
77e63ed4 4455 return 1;
635374e7
EM		 4456
4457 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
4458
4459 if (mpi_reply == NULL) {
4460 scmd->result = DID_OK << 16;
4461 goto out;
4462 }
4463
4464 sas_device_priv_data = scmd->device->hostdata;
4465 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
4466 sas_device_priv_data->sas_target->deleted) {
4467 scmd->result = DID_NO_CONNECT << 16;
4468 goto out;
4469 }
4da7af94 4470 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
0bdccdb0
KD		 4471 /*
4472 * WARPDRIVE: If direct_io is set then it is directIO,
4473 * the failed direct I/O should be redirected to volume
4474 */
4da7af94 4475 if (_scsih_scsi_direct_io_get(ioc, smid) &&
4476 ((ioc_status & MPI2_IOCSTATUS_MASK)
4477 != MPI2_IOCSTATUS_SCSI_TASK_TERMINATED)) {
82a45258
KD		 4478 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
4479 ioc->scsi_lookup[smid - 1].scmd = scmd;
0bdccdb0 4480 _scsih_scsi_direct_io_set(ioc, smid, 0);
09da0b32 4481 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
0bdccdb0
KD		 4482 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
4483 mpi_request->DevHandle =
4484 cpu_to_le16(sas_device_priv_data->sas_target->handle);
4485 mpt2sas_base_put_smid_scsi_io(ioc, smid,
4486 sas_device_priv_data->sas_target->handle);
4487 return 0;
4488 }
4489
635374e7
EM		 4490
4491 /* turning off TLR */
9982f594
KD		 4492 scsi_state = mpi_reply->SCSIState;
4493 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
4494 response_code =
4495 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
635374e7
EM		 4496 if (!sas_device_priv_data->tlr_snoop_check) {
4497 sas_device_priv_data->tlr_snoop_check++;
0bdccdb0
KD		 4498 /* Make sure Device is not raid volume.
4499 * We do not expose raid functionality to upper layer for warpdrive.
4500 */
4501 if (!ioc->is_warpdrive && !_scsih_is_raid(&scmd->device->sdev_gendev) &&
3ed21525 4502 sas_is_tlr_enabled(scmd->device) &&
84f0b04a
KD		 4503 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
4504 sas_disable_tlr(scmd->device);
4505 sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
4506 }
635374e7
EM		 4507 }
4508
4509 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
4510 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
635374e7
EM		 4511 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
4512 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4513 else
4514 log_info = 0;
4515 ioc_status &= MPI2_IOCSTATUS_MASK;
635374e7
EM		 4516 scsi_status = mpi_reply->SCSIStatus;
4517
4518 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
4519 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
4520 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
4521 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
4522 ioc_status = MPI2_IOCSTATUS_SUCCESS;
4523 }
4524
4525 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
4526 struct sense_info data;
4527 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
4528 smid);
0d04df9b 4529 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
635374e7 4530 le32_to_cpu(mpi_reply->SenseCount));
0d04df9b 4531 memcpy(scmd->sense_buffer, sense_data, sz);
635374e7
EM		 4532 _scsih_normalize_sense(scmd->sense_buffer, &data);
4533 /* failure prediction threshold exceeded */
4534 if (data.asc == 0x5D)
4535 _scsih_smart_predicted_fault(ioc,
4536 le16_to_cpu(mpi_reply->DevHandle));
4537 }
4538
4539 switch (ioc_status) {
4540 case MPI2_IOCSTATUS_BUSY:
4541 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
4542 scmd->result = SAM_STAT_BUSY;
4543 break;
4544
4545 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
4546 scmd->result = DID_NO_CONNECT << 16;
4547 break;
4548
4549 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
4550 if (sas_device_priv_data->block) {
e4e7c7ed
KD		 4551 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
4552 goto out;
635374e7 4553 }
3ade1ca7 4554 scmd->result = DID_SOFT_ERROR << 16;
4555 break;
635374e7
EM		 4556 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
4557 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
4558 scmd->result = DID_RESET << 16;
4559 break;
4560
4561 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
4562 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
4563 scmd->result = DID_SOFT_ERROR << 16;
4564 else
4565 scmd->result = (DID_OK << 16) | scsi_status;
4566 break;
4567
4568 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
4569 scmd->result = (DID_OK << 16) | scsi_status;
4570
4571 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
4572 break;
4573
4574 if (xfer_cnt < scmd->underflow) {
4575 if (scsi_status == SAM_STAT_BUSY)
4576 scmd->result = SAM_STAT_BUSY;
4577 else
4578 scmd->result = DID_SOFT_ERROR << 16;
4579 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4580 MPI2_SCSI_STATE_NO_SCSI_STATUS))
4581 scmd->result = DID_SOFT_ERROR << 16;
4582 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4583 scmd->result = DID_RESET << 16;
4584 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
4585 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
4586 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
4587 scmd->result = (DRIVER_SENSE << 24) |
4588 SAM_STAT_CHECK_CONDITION;
4589 scmd->sense_buffer[0] = 0x70;
4590 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
4591 scmd->sense_buffer[12] = 0x20;
4592 scmd->sense_buffer[13] = 0;
4593 }
4594 break;
4595
4596 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
4597 scsi_set_resid(scmd, 0);
4598 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
4599 case MPI2_IOCSTATUS_SUCCESS:
4600 scmd->result = (DID_OK << 16) | scsi_status;
9982f594
KD		 4601 if (response_code ==
4602 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
4603 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
4604 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
635374e7
EM		 4605 scmd->result = DID_SOFT_ERROR << 16;
4606 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
4607 scmd->result = DID_RESET << 16;
4608 break;
4609
3c621b3e
EM		 4610 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
4611 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
4612 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
4613 _scsih_eedp_error_handling(scmd, ioc_status);
4614 break;
635374e7
EM		 4615 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
4616 case MPI2_IOCSTATUS_INVALID_FUNCTION:
4617 case MPI2_IOCSTATUS_INVALID_SGL:
4618 case MPI2_IOCSTATUS_INTERNAL_ERROR:
4619 case MPI2_IOCSTATUS_INVALID_FIELD:
4620 case MPI2_IOCSTATUS_INVALID_STATE:
4621 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
4622 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
4623 default:
4624 scmd->result = DID_SOFT_ERROR << 16;
4625 break;
4626
4627 }
4628
4629#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4630 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
4631 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
4632#endif
4633
4634 out:
4635 scsi_dma_unmap(scmd);
4636 scmd->scsi_done(scmd);
77e63ed4 4637 return 1;
635374e7
EM		 4638}
4639
635374e7
EM		 4640/**
4641 * _scsih_sas_host_refresh - refreshing sas host object contents
4642 * @ioc: per adapter object
635374e7
EM		 4643 * Context: user
4644 *
4645 * During port enable, fw will send topology events for every device. Its
4646 * possible that the handles may change from the previous setting, so this
4647 * code keeping handles updating if changed.
4648 *
4649 * Return nothing.
4650 */
4651static void
c5e039be 4652_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
635374e7
EM		 4653{
4654 u16 sz;
4655 u16 ioc_status;
4656 int i;
4657 Mpi2ConfigReply_t mpi_reply;
4658 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
c5e039be 4659 u16 attached_handle;
7f6f794d 4660 u8 link_rate;
635374e7
EM		 4661
4662 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
4663 "updating handles for sas_host(0x%016llx)\n",
4664 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
4665
4666 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
4667 * sizeof(Mpi2SasIOUnit0PhyData_t));
4668 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4669 if (!sas_iounit_pg0) {
4670 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4671 ioc->name, __FILE__, __LINE__, __func__);
4672 return;
4673 }
635374e7 4674
c5e039be
KD		 4675 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4676 sas_iounit_pg0, sz)) != 0)
4677 goto out;
4678 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4679 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4680 goto out;
4681 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
7f6f794d 4682 link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
c5e039be
KD		 4683 if (i == 0)
4684 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4685 PhyData[0].ControllerDevHandle);
4686 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
4687 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
4688 AttachedDevHandle);
7f6f794d
KD		 4689 if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4690 link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
c5e039be 4691 mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
7f6f794d 4692 attached_handle, i, link_rate);
c5e039be 4693 }
635374e7
EM		 4694 out:
4695 kfree(sas_iounit_pg0);
4696}
4697
4698/**
4699 * _scsih_sas_host_add - create sas host object
4700 * @ioc: per adapter object
4701 *
4702 * Creating host side data object, stored in ioc->sas_hba
4703 *
4704 * Return nothing.
4705 */
4706static void
4707_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
4708{
4709 int i;
4710 Mpi2ConfigReply_t mpi_reply;
4711 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4712 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4713 Mpi2SasPhyPage0_t phy_pg0;
4714 Mpi2SasDevicePage0_t sas_device_pg0;
4715 Mpi2SasEnclosurePage0_t enclosure_pg0;
4716 u16 ioc_status;
4717 u16 sz;
4718 u16 device_missing_delay;
4719
4720 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4721 if (!ioc->sas_hba.num_phys) {
4722 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4723 ioc->name, __FILE__, __LINE__, __func__);
4724 return;
4725 }
4726
4727 /* sas_iounit page 0 */
4728 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4729 sizeof(Mpi2SasIOUnit0PhyData_t));
4730 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4731 if (!sas_iounit_pg0) {
4732 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4733 ioc->name, __FILE__, __LINE__, __func__);
4734 return;
4735 }
4736 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4737 sas_iounit_pg0, sz))) {
4738 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4739 ioc->name, __FILE__, __LINE__, __func__);
4740 goto out;
4741 }
4742 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4743 MPI2_IOCSTATUS_MASK;
4744 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4745 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4746 ioc->name, __FILE__, __LINE__, __func__);
4747 goto out;
4748 }
4749
4750 /* sas_iounit page 1 */
4751 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4752 sizeof(Mpi2SasIOUnit1PhyData_t));
4753 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4754 if (!sas_iounit_pg1) {
4755 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4756 ioc->name, __FILE__, __LINE__, __func__);
4757 goto out;
4758 }
4759 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4760 sas_iounit_pg1, sz))) {
4761 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4762 ioc->name, __FILE__, __LINE__, __func__);
4763 goto out;
4764 }
4765 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4766 MPI2_IOCSTATUS_MASK;
4767 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4768 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4769 ioc->name, __FILE__, __LINE__, __func__);
4770 goto out;
4771 }
4772
4773 ioc->io_missing_delay =
4774 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
4775 device_missing_delay =
4776 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
4777 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4778 ioc->device_missing_delay = (device_missing_delay &
4779 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4780 else
4781 ioc->device_missing_delay = device_missing_delay &
4782 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4783
4784 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4785 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4786 sizeof(struct _sas_phy), GFP_KERNEL);
4787 if (!ioc->sas_hba.phy) {
4788 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4789 ioc->name, __FILE__, __LINE__, __func__);
4790 goto out;
4791 }
4792 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4793 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4794 i))) {
4795 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4796 ioc->name, __FILE__, __LINE__, __func__);
4797 goto out;
4798 }
4799 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4800 MPI2_IOCSTATUS_MASK;
4801 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4802 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4803 ioc->name, __FILE__, __LINE__, __func__);
4804 goto out;
4805 }
c5e039be
KD		 4806
4807 if (i == 0)
4808 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4809 PhyData[0].ControllerDevHandle);
4810 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
635374e7
EM		 4811 ioc->sas_hba.phy[i].phy_id = i;
4812 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4813 phy_pg0, ioc->sas_hba.parent_dev);
4814 }
4815 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
c5e039be 4816 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
635374e7
EM		 4817 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4818 ioc->name, __FILE__, __LINE__, __func__);
4819 goto out;
4820 }
635374e7
EM		 4821 ioc->sas_hba.enclosure_handle =
4822 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4823 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4824 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
4825 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
4826 (unsigned long long) ioc->sas_hba.sas_address,
4827 ioc->sas_hba.num_phys) ;
4828
4829 if (ioc->sas_hba.enclosure_handle) {
4830 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4831 &enclosure_pg0,
4832 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4833 ioc->sas_hba.enclosure_handle))) {
4834 ioc->sas_hba.enclosure_logical_id =
4835 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4836 }
4837 }
4838
4839 out:
4840 kfree(sas_iounit_pg1);
4841 kfree(sas_iounit_pg0);
4842}
4843
4844/**
4845 * _scsih_expander_add - creating expander object
4846 * @ioc: per adapter object
4847 * @handle: expander handle
4848 *
4849 * Creating expander object, stored in ioc->sas_expander_list.
4850 *
4851 * Return 0 for success, else error.
4852 */
4853static int
4854_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4855{
4856 struct _sas_node *sas_expander;
4857 Mpi2ConfigReply_t mpi_reply;
4858 Mpi2ExpanderPage0_t expander_pg0;
4859 Mpi2ExpanderPage1_t expander_pg1;
4860 Mpi2SasEnclosurePage0_t enclosure_pg0;
4861 u32 ioc_status;
4862 u16 parent_handle;
c97951ec 4863 u64 sas_address, sas_address_parent = 0;
635374e7
EM		 4864 int i;
4865 unsigned long flags;
20f5895d 4866 struct _sas_port *mpt2sas_port = NULL;
635374e7
EM		 4867 int rc = 0;
4868
4869 if (!handle)
4870 return -1;
4871
3cb5469a 4872 if (ioc->shost_recovery || ioc->pci_error_recovery)
155dd4c7
KD		 4873 return -1;
4874
635374e7
EM		 4875 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4876 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4877 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4878 ioc->name, __FILE__, __LINE__, __func__);
4879 return -1;
4880 }
4881
4882 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4883 MPI2_IOCSTATUS_MASK;
4884 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4885 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4886 ioc->name, __FILE__, __LINE__, __func__);
4887 return -1;
4888 }
4889
4890 /* handle out of order topology events */
4891 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
c5e039be
KD		 4892 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4893 != 0) {
4894 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4895 ioc->name, __FILE__, __LINE__, __func__);
4896 return -1;
4897 }
4898 if (sas_address_parent != ioc->sas_hba.sas_address) {
635374e7 4899 spin_lock_irqsave(&ioc->sas_node_lock, flags);
c5e039be
KD		 4900 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4901 sas_address_parent);
635374e7
EM		 4902 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4903 if (!sas_expander) {
4904 rc = _scsih_expander_add(ioc, parent_handle);
4905 if (rc != 0)
4906 return rc;
4907 }
4908 }
4909
635374e7 4910 spin_lock_irqsave(&ioc->sas_node_lock, flags);
595bb0bd 4911 sas_address = le64_to_cpu(expander_pg0.SASAddress);
635374e7
EM		 4912 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4913 sas_address);
4914 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4915
4916 if (sas_expander)
4917 return 0;
4918
4919 sas_expander = kzalloc(sizeof(struct _sas_node),
4920 GFP_KERNEL);
4921 if (!sas_expander) {
4922 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4923 ioc->name, __FILE__, __LINE__, __func__);
4924 return -1;
4925 }
4926
4927 sas_expander->handle = handle;
4928 sas_expander->num_phys = expander_pg0.NumPhys;
c5e039be 4929 sas_expander->sas_address_parent = sas_address_parent;
635374e7
EM		 4930 sas_expander->sas_address = sas_address;
4931
4932 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
4933 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
c5e039be 4934 handle, parent_handle, (unsigned long long)
635374e7
EM		 4935 sas_expander->sas_address, sas_expander->num_phys);
4936
4937 if (!sas_expander->num_phys)
4938 goto out_fail;
4939 sas_expander->phy = kcalloc(sas_expander->num_phys,
4940 sizeof(struct _sas_phy), GFP_KERNEL);
4941 if (!sas_expander->phy) {
4942 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4943 ioc->name, __FILE__, __LINE__, __func__);
4944 rc = -1;
4945 goto out_fail;
4946 }
4947
4948 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4949 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
c5e039be 4950 sas_address_parent);
635374e7
EM		 4951 if (!mpt2sas_port) {
4952 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4953 ioc->name, __FILE__, __LINE__, __func__);
4954 rc = -1;
4955 goto out_fail;
4956 }
4957 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
4958
4959 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4960 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
4961 &expander_pg1, i, handle))) {
4962 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4963 ioc->name, __FILE__, __LINE__, __func__);
20f5895d
KD		 4964 rc = -1;
4965 goto out_fail;
635374e7
EM		 4966 }
4967 sas_expander->phy[i].handle = handle;
4968 sas_expander->phy[i].phy_id = i;
20f5895d
KD		 4969
4970 if ((mpt2sas_transport_add_expander_phy(ioc,
4971 &sas_expander->phy[i], expander_pg1,
4972 sas_expander->parent_dev))) {
4973 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4974 ioc->name, __FILE__, __LINE__, __func__);
4975 rc = -1;
4976 goto out_fail;
4977 }
635374e7
EM		 4978 }
4979
4980 if (sas_expander->enclosure_handle) {
4981 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4982 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4983 sas_expander->enclosure_handle))) {
4984 sas_expander->enclosure_logical_id =
4985 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4986 }
4987 }
4988
4989 _scsih_expander_node_add(ioc, sas_expander);
4990 return 0;
4991
4992 out_fail:
4993
20f5895d
KD		 4994 if (mpt2sas_port)
4995 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
c5e039be 4996 sas_address_parent);
635374e7
EM		 4997 kfree(sas_expander);
4998 return rc;
4999}
5000
744090d3
KD		 5001/**
5002 * _scsih_done - scsih callback handler.
5003 * @ioc: per adapter object
5004 * @smid: system request message index
5005 * @msix_index: MSIX table index supplied by the OS
5006 * @reply: reply message frame(lower 32bit addr)
5007 *
5008 * Callback handler when sending internal generated message frames.
5009 * The callback index passed is `ioc->scsih_cb_idx`
5010 *
5011 * Return 1 meaning mf should be freed from _base_interrupt
5012 * 0 means the mf is freed from this function.
5013 */
5014static u8
5015_scsih_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
5016{
5017 MPI2DefaultReply_t *mpi_reply;
5018
5019 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5020 if (ioc->scsih_cmds.status == MPT2_CMD_NOT_USED)
5021 return 1;
5022 if (ioc->scsih_cmds.smid != smid)
5023 return 1;
5024 ioc->scsih_cmds.status |= MPT2_CMD_COMPLETE;
5025 if (mpi_reply) {
5026 memcpy(ioc->scsih_cmds.reply, mpi_reply,
5027 mpi_reply->MsgLength*4);
5028 ioc->scsih_cmds.status |= MPT2_CMD_REPLY_VALID;
5029 }
5030 ioc->scsih_cmds.status &= ~MPT2_CMD_PENDING;
5031 complete(&ioc->scsih_cmds.done);
5032 return 1;
5033}
5034
635374e7 5035/**
7f6f794d 5036 * mpt2sas_expander_remove - removing expander object
635374e7 5037 * @ioc: per adapter object
c5e039be 5038 * @sas_address: expander sas_address
635374e7
EM		 5039 *
5040 * Return nothing.
5041 */
7f6f794d
KD		 5042void
5043mpt2sas_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
635374e7
EM		 5044{
5045 struct _sas_node *sas_expander;
5046 unsigned long flags;
5047
155dd4c7
KD		 5048 if (ioc->shost_recovery)
5049 return;
5050
635374e7 5051 spin_lock_irqsave(&ioc->sas_node_lock, flags);
c5e039be
KD		 5052 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
5053 sas_address);
09da0b32 5054 if (sas_expander)
5055 list_del(&sas_expander->list);
635374e7 5056 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
09da0b32 5057 if (sas_expander)
5058 _scsih_expander_node_remove(ioc, sas_expander);
635374e7
EM		 5059}
5060
b4344276
KD		 5061/**
5062 * _scsih_check_access_status - check access flags
5063 * @ioc: per adapter object
5064 * @sas_address: sas address
5065 * @handle: sas device handle
5066 * @access_flags: errors returned during discovery of the device
5067 *
5068 * Return 0 for success, else failure
5069 */
5070static u8
5071_scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5072 u16 handle, u8 access_status)
5073{
5074 u8 rc = 1;
5075 char *desc = NULL;
5076
5077 switch (access_status) {
5078 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
5079 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
5080 rc = 0;
5081 break;
5082 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
5083 desc = "sata capability failed";
5084 break;
5085 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
5086 desc = "sata affiliation conflict";
5087 break;
5088 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
5089 desc = "route not addressable";
5090 break;
5091 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
5092 desc = "smp error not addressable";
5093 break;
5094 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
5095 desc = "device blocked";
5096 break;
5097 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
5098 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
5099 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
5100 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
5101 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
5102 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
5103 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
5104 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
5105 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
5106 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
5107 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
5108 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
5109 desc = "sata initialization failed";
5110 break;
5111 default:
5112 desc = "unknown";
5113 break;
5114 }
5115
5116 if (!rc)
5117 return 0;
5118
5119 printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), "
5120 "handle(0x%04x)\n", ioc->name, desc,
5121 (unsigned long long)sas_address, handle);
5122 return rc;
5123}
5124
5125static void
5126_scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5127{
5128 Mpi2ConfigReply_t mpi_reply;
5129 Mpi2SasDevicePage0_t sas_device_pg0;
5130 struct _sas_device *sas_device;
5131 u32 ioc_status;
5132 unsigned long flags;
5133 u64 sas_address;
5134 struct scsi_target *starget;
5135 struct MPT2SAS_TARGET *sas_target_priv_data;
5136 u32 device_info;
5137
09da0b32 5138
b4344276
KD		 5139 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5140 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
5141 return;
5142
5143 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
5144 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
5145 return;
5146
5147 /* check if this is end device */
5148 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5149 if (!(_scsih_is_end_device(device_info)))
5150 return;
5151
5152 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5153 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5154 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5155 sas_address);
5156
5157 if (!sas_device) {
5158 printk(MPT2SAS_ERR_FMT "device is not present "
5159 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
5160 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5161 return;
5162 }
5163
5164 if (unlikely(sas_device->handle != handle)) {
5165 starget = sas_device->starget;
5166 sas_target_priv_data = starget->hostdata;
5167 starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)"
5168 " to (0x%04x)!!!\n", sas_device->handle, handle);
5169 sas_target_priv_data->handle = handle;
5170 sas_device->handle = handle;
5171 }
b4344276
KD		 5172
5173 /* check if device is present */
5174 if (!(le16_to_cpu(sas_device_pg0.Flags) &
5175 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
5176 printk(MPT2SAS_ERR_FMT "device is not present "
5177 "handle(0x%04x), flags!!!\n", ioc->name, handle);
09da0b32 5178 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
b4344276
KD		 5179 return;
5180 }
5181
5182 /* check if there were any issues with discovery */
5183 if (_scsih_check_access_status(ioc, sas_address, handle,
09da0b32 5184 sas_device_pg0.AccessStatus)) {
5185 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
b4344276 5186 return;
09da0b32 5187 }
5188 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
39af7a98 5189 _scsih_ublock_io_device(ioc, sas_address);
b4344276
KD		 5190
5191}
5192
635374e7
EM		 5193/**
5194 * _scsih_add_device - creating sas device object
5195 * @ioc: per adapter object
5196 * @handle: sas device handle
5197 * @phy_num: phy number end device attached to
5198 * @is_pd: is this hidden raid component
5199 *
5200 * Creating end device object, stored in ioc->sas_device_list.
5201 *
5202 * Returns 0 for success, non-zero for failure.
5203 */
5204static int
5205_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
5206{
5207 Mpi2ConfigReply_t mpi_reply;
5208 Mpi2SasDevicePage0_t sas_device_pg0;
5209 Mpi2SasEnclosurePage0_t enclosure_pg0;
5210 struct _sas_device *sas_device;
5211 u32 ioc_status;
5212 __le64 sas_address;
5213 u32 device_info;
5214 unsigned long flags;
5215
5216 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5217 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5218 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5219 ioc->name, __FILE__, __LINE__, __func__);
5220 return -1;
5221 }
5222
5223 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5224 MPI2_IOCSTATUS_MASK;
5225 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5226 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5227 ioc->name, __FILE__, __LINE__, __func__);
5228 return -1;
5229 }
5230
b4344276
KD		 5231 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5232
635374e7
EM		 5233 /* check if device is present */
5234 if (!(le16_to_cpu(sas_device_pg0.Flags) &
5235 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
5236 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5237 ioc->name, __FILE__, __LINE__, __func__);
5238 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
5239 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
5240 return -1;
5241 }
5242
b4344276
KD		 5243 /* check if there were any issues with discovery */
5244 if (_scsih_check_access_status(ioc, sas_address, handle,
5245 sas_device_pg0.AccessStatus))
635374e7 5246 return -1;
635374e7
EM		 5247
5248 /* check if this is end device */
5249 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5250 if (!(_scsih_is_end_device(device_info))) {
5251 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5252 ioc->name, __FILE__, __LINE__, __func__);
5253 return -1;
5254 }
5255
635374e7
EM		 5256
5257 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5258 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5259 sas_address);
5260 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5261
b4344276 5262 if (sas_device)
635374e7 5263 return 0;
635374e7
EM		 5264
5265 sas_device = kzalloc(sizeof(struct _sas_device),
5266 GFP_KERNEL);
5267 if (!sas_device) {
5268 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5269 ioc->name, __FILE__, __LINE__, __func__);
5270 return -1;
5271 }
5272
5273 sas_device->handle = handle;
c5e039be
KD		 5274 if (_scsih_get_sas_address(ioc, le16_to_cpu
5275 (sas_device_pg0.ParentDevHandle),
5276 &sas_device->sas_address_parent) != 0)
5277 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5278 ioc->name, __FILE__, __LINE__, __func__);
635374e7
EM		 5279 sas_device->enclosure_handle =
5280 le16_to_cpu(sas_device_pg0.EnclosureHandle);
5281 sas_device->slot =
5282 le16_to_cpu(sas_device_pg0.Slot);
5283 sas_device->device_info = device_info;
5284 sas_device->sas_address = sas_address;
7fbae67a 5285 sas_device->phy = sas_device_pg0.PhyNum;
635374e7
EM		 5286
5287 /* get enclosure_logical_id */
15052c9e
KD		 5288 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
5289 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
5290 sas_device->enclosure_handle)))
635374e7
EM		 5291 sas_device->enclosure_logical_id =
5292 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
635374e7
EM		 5293
5294 /* get device name */
5295 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
5296
921cd802 5297 if (ioc->wait_for_discovery_to_complete)
635374e7
EM		 5298 _scsih_sas_device_init_add(ioc, sas_device);
5299 else
5300 _scsih_sas_device_add(ioc, sas_device);
5301
5302 return 0;
5303}
5304
1278b11f
KD		 5305/**
5306 * _scsih_remove_device - removing sas device object
5307 * @ioc: per adapter object
5308 * @sas_device_delete: the sas_device object
5309 *
5310 * Return nothing.
5311 */
5312static void
5313_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
5314 struct _sas_device *sas_device)
5315{
1278b11f 5316 struct MPT2SAS_TARGET *sas_target_priv_data;
34a03bef 5317
1278b11f
KD		 5318 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: "
5319 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
09da0b32 5320 sas_device->handle, (unsigned long long)
5321 sas_device->sas_address));
1278b11f 5322
09da0b32 5323 if (sas_device->starget && sas_device->starget->hostdata) {
5324 sas_target_priv_data = sas_device->starget->hostdata;
1278b11f 5325 sas_target_priv_data->deleted = 1;
39af7a98 5326 _scsih_ublock_io_device(ioc, sas_device->sas_address);
918134ef 5327 sas_target_priv_data->handle =
5328 MPT2SAS_INVALID_DEVICE_HANDLE;
1278b11f
KD		 5329 }
5330
0bdccdb0
KD		 5331 if (!ioc->hide_drives)
5332 mpt2sas_transport_port_remove(ioc,
09da0b32 5333 sas_device->sas_address,
5334 sas_device->sas_address_parent);
635374e7
EM		 5335
5336 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
09da0b32 5337 "(0x%016llx)\n", ioc->name, sas_device->handle,
5338 (unsigned long long) sas_device->sas_address);
635374e7 5339
1278b11f
KD		 5340 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: "
5341 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
09da0b32 5342 sas_device->handle, (unsigned long long)
5343 sas_device->sas_address));
5344 kfree(sas_device);
5345}
5346/**
5347 * _scsih_device_remove_by_handle - removing device object by handle
5348 * @ioc: per adapter object
5349 * @handle: device handle
5350 *
5351 * Return nothing.
5352 */
5353static void
5354_scsih_device_remove_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5355{
5356 struct _sas_device *sas_device;
5357 unsigned long flags;
5358
5359 if (ioc->shost_recovery)
5360 return;
5361
5362 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5363 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5364 if (sas_device)
5365 list_del(&sas_device->list);
5366 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5367 if (sas_device)
5368 _scsih_remove_device(ioc, sas_device);
635374e7
EM		 5369}
5370
7f6f794d 5371/**
09da0b32 5372 * mpt2sas_device_remove_by_sas_address - removing device object by sas address
7f6f794d 5373 * @ioc: per adapter object
09da0b32 5374 * @sas_address: device sas_address
7f6f794d
KD		 5375 *
5376 * Return nothing.
5377 */
5378void
09da0b32 5379mpt2sas_device_remove_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
5380 u64 sas_address)
7f6f794d
KD		 5381{
5382 struct _sas_device *sas_device;
5383 unsigned long flags;
5384
5385 if (ioc->shost_recovery)
5386 return;
5387
5388 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5389 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5390 sas_address);
09da0b32 5391 if (sas_device)
5392 list_del(&sas_device->list);
7f6f794d 5393 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
09da0b32 5394 if (sas_device)
5395 _scsih_remove_device(ioc, sas_device);
7f6f794d 5396}
635374e7
EM		 5397#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5398/**
5399 * _scsih_sas_topology_change_event_debug - debug for topology event
5400 * @ioc: per adapter object
5401 * @event_data: event data payload
5402 * Context: user.
5403 */
5404static void
5405_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5406 Mpi2EventDataSasTopologyChangeList_t *event_data)
5407{
5408 int i;
5409 u16 handle;
5410 u16 reason_code;
5411 u8 phy_number;
5412 char *status_str = NULL;
e7d59c17 5413 u8 link_rate, prev_link_rate;
635374e7
EM		 5414
5415 switch (event_data->ExpStatus) {
5416 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
5417 status_str = "add";
5418 break;
5419 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
5420 status_str = "remove";
5421 break;
5422 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
e7d59c17 5423 case 0:
635374e7
EM		 5424 status_str = "responding";
5425 break;
5426 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
5427 status_str = "remove delay";
5428 break;
5429 default:
5430 status_str = "unknown status";
5431 break;
5432 }
eabb08ad 5433 printk(MPT2SAS_INFO_FMT "sas topology change: (%s)\n",
635374e7 5434 ioc->name, status_str);
eabb08ad 5435 printk(KERN_INFO "\thandle(0x%04x), enclosure_handle(0x%04x) "
635374e7
EM		 5436 "start_phy(%02d), count(%d)\n",
5437 le16_to_cpu(event_data->ExpanderDevHandle),
5438 le16_to_cpu(event_data->EnclosureHandle),
5439 event_data->StartPhyNum, event_data->NumEntries);
5440 for (i = 0; i < event_data->NumEntries; i++) {
5441 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5442 if (!handle)
5443 continue;
5444 phy_number = event_data->StartPhyNum + i;
5445 reason_code = event_data->PHY[i].PhyStatus &
5446 MPI2_EVENT_SAS_TOPO_RC_MASK;
5447 switch (reason_code) {
5448 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
e7d59c17 5449 status_str = "target add";
635374e7
EM		 5450 break;
5451 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
e7d59c17 5452 status_str = "target remove";
635374e7
EM		 5453 break;
5454 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
e7d59c17 5455 status_str = "delay target remove";
635374e7
EM		 5456 break;
5457 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
e7d59c17 5458 status_str = "link rate change";
635374e7
EM		 5459 break;
5460 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
e7d59c17 5461 status_str = "target responding";
635374e7
EM		 5462 break;
5463 default:
e7d59c17 5464 status_str = "unknown";
635374e7
EM		 5465 break;
5466 }
e7d59c17
KD		 5467 link_rate = event_data->PHY[i].LinkRate >> 4;
5468 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
eabb08ad 5469 printk(KERN_INFO "\tphy(%02d), attached_handle(0x%04x): %s:"
e7d59c17
KD		 5470 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
5471 handle, status_str, link_rate, prev_link_rate);
5472
635374e7
EM		 5473 }
5474}
5475#endif
5476
5477/**
5478 * _scsih_sas_topology_change_event - handle topology changes
5479 * @ioc: per adapter object
7b936b02 5480 * @fw_event: The fw_event_work object
635374e7
EM		 5481 * Context: user.
5482 *
5483 */
5484static void
7b936b02 5485_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
635374e7
EM		 5486 struct fw_event_work *fw_event)
5487{
5488 int i;
5489 u16 parent_handle, handle;
5490 u16 reason_code;
b41c09d1 5491 u8 phy_number, max_phys;
635374e7 5492 struct _sas_node *sas_expander;
c5e039be 5493 u64 sas_address;
635374e7 5494 unsigned long flags;
e7d59c17 5495 u8 link_rate, prev_link_rate;
7b936b02 5496 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
635374e7
EM		 5497
5498#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5499 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5500 _scsih_sas_topology_change_event_debug(ioc, event_data);
5501#endif
5502
918134ef 5503 if (ioc->remove_host || ioc->pci_error_recovery)
c5e039be
KD		 5504 return;
5505
635374e7
EM		 5506 if (!ioc->sas_hba.num_phys)
5507 _scsih_sas_host_add(ioc);
5508 else
c5e039be 5509 _scsih_sas_host_refresh(ioc);
635374e7
EM		 5510
5511 if (fw_event->ignore) {
eabb08ad 5512 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring expander "
635374e7
EM		 5513 "event\n", ioc->name));
5514 return;
5515 }
5516
5517 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
5518
5519 /* handle expander add */
5520 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
5521 if (_scsih_expander_add(ioc, parent_handle) != 0)
5522 return;
5523
c5e039be
KD		 5524 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5525 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
5526 parent_handle);
b41c09d1 5527 if (sas_expander) {
c5e039be 5528 sas_address = sas_expander->sas_address;
b41c09d1
KD		 5529 max_phys = sas_expander->num_phys;
5530 } else if (parent_handle < ioc->sas_hba.num_phys) {
c5e039be 5531 sas_address = ioc->sas_hba.sas_address;
b41c09d1 5532 max_phys = ioc->sas_hba.num_phys;
09da0b32 5533 } else {
5534 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
c5e039be 5535 return;
09da0b32 5536 }
5537 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
c5e039be 5538
635374e7
EM		 5539 /* handle siblings events */
5540 for (i = 0; i < event_data->NumEntries; i++) {
5541 if (fw_event->ignore) {
eabb08ad 5542 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring "
635374e7
EM		 5543 "expander event\n", ioc->name));
5544 return;
5545 }
3cb5469a
EM		 5546 if (ioc->shost_recovery || ioc->remove_host ||
5547 ioc->pci_error_recovery)
155dd4c7 5548 return;
308609c6 5549 phy_number = event_data->StartPhyNum + i;
b41c09d1
KD		 5550 if (phy_number >= max_phys)
5551 continue;
308609c6
KD		 5552 reason_code = event_data->PHY[i].PhyStatus &
5553 MPI2_EVENT_SAS_TOPO_RC_MASK;
5554 if ((event_data->PHY[i].PhyStatus &
5555 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
5556 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
635374e7
EM		 5557 continue;
5558 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
5559 if (!handle)
5560 continue;
c5e039be 5561 link_rate = event_data->PHY[i].LinkRate >> 4;
e7d59c17 5562 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
635374e7
EM		 5563 switch (reason_code) {
5564 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
e7d59c17 5565
918134ef 5566 if (ioc->shost_recovery)
5567 break;
5568
e7d59c17
KD		 5569 if (link_rate == prev_link_rate)
5570 break;
5571
5572 mpt2sas_transport_update_links(ioc, sas_address,
5573 handle, phy_number, link_rate);
5574
b4344276
KD		 5575 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
5576 break;
5577
5578 _scsih_check_device(ioc, handle);
e7d59c17 5579 break;
635374e7 5580 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
c5e039be 5581
918134ef 5582 if (ioc->shost_recovery)
5583 break;
5584
c5e039be
KD		 5585 mpt2sas_transport_update_links(ioc, sas_address,
5586 handle, phy_number, link_rate);
5587
e7d59c17 5588 _scsih_add_device(ioc, handle, phy_number, 0);
635374e7
EM		 5589 break;
5590 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
c5e039be 5591
09da0b32 5592 _scsih_device_remove_by_handle(ioc, handle);
635374e7
EM		 5593 break;
5594 }
5595 }
5596
5597 /* handle expander removal */
c5e039be
KD		 5598 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
5599 sas_expander)
7f6f794d 5600 mpt2sas_expander_remove(ioc, sas_address);
635374e7
EM		 5601
5602}
5603
5604#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5605/**
5606 * _scsih_sas_device_status_change_event_debug - debug for device event
5607 * @event_data: event data payload
5608 * Context: user.
5609 *
5610 * Return nothing.
5611 */
5612static void
5613_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5614 Mpi2EventDataSasDeviceStatusChange_t *event_data)
5615{
5616 char *reason_str = NULL;
5617
5618 switch (event_data->ReasonCode) {
5619 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
5620 reason_str = "smart data";
5621 break;
5622 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
5623 reason_str = "unsupported device discovered";
5624 break;
5625 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
5626 reason_str = "internal device reset";
5627 break;
5628 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
5629 reason_str = "internal task abort";
5630 break;
5631 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
5632 reason_str = "internal task abort set";
5633 break;
5634 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
5635 reason_str = "internal clear task set";
5636 break;
5637 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
5638 reason_str = "internal query task";
5639 break;
5640 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
5641 reason_str = "sata init failure";
5642 break;
5643 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
5644 reason_str = "internal device reset complete";
5645 break;
5646 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
5647 reason_str = "internal task abort complete";
5648 break;
5649 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
5650 reason_str = "internal async notification";
5651 break;
ec6c2b43
KD		 5652 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
5653 reason_str = "expander reduced functionality";
5654 break;
5655 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
5656 reason_str = "expander reduced functionality complete";
5657 break;
635374e7
EM		 5658 default:
5659 reason_str = "unknown reason";
5660 break;
5661 }
eabb08ad 5662 printk(MPT2SAS_INFO_FMT "device status change: (%s)\n"
f93213de
KD		 5663 "\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
5664 ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
5665 (unsigned long long)le64_to_cpu(event_data->SASAddress),
5666 le16_to_cpu(event_data->TaskTag));
635374e7 5667 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
eabb08ad 5668 printk(MPT2SAS_INFO_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
635374e7
EM		 5669 event_data->ASC, event_data->ASCQ);
5670 printk(KERN_INFO "\n");
5671}
5672#endif
5673
5674/**
5675 * _scsih_sas_device_status_change_event - handle device status change
5676 * @ioc: per adapter object
7b936b02 5677 * @fw_event: The fw_event_work object
635374e7
EM		 5678 * Context: user.
5679 *
5680 * Return nothing.
5681 */
5682static void
7b936b02
KD		 5683_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5684 struct fw_event_work *fw_event)
635374e7 5685{
8ffc457e
KD		 5686 struct MPT2SAS_TARGET *target_priv_data;
5687 struct _sas_device *sas_device;
c97951ec 5688 u64 sas_address;
8ffc457e
KD		 5689 unsigned long flags;
5690 Mpi2EventDataSasDeviceStatusChange_t *event_data =
5691 fw_event->event_data;
5692
635374e7
EM		 5693#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5694 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
7b936b02 5695 _scsih_sas_device_status_change_event_debug(ioc,
8ffc457e 5696 event_data);
635374e7 5697#endif
8ffc457e 5698
efe82a16
KD		 5699 /* In MPI Revision K (0xC), the internal device reset complete was
5700 * implemented, so avoid setting tm_busy flag for older firmware.
5701 */
5702 if ((ioc->facts.HeaderVersion >> 8) < 0xC)
5703 return;
5704
f891dcfd 5705 if (event_data->ReasonCode !=
8ffc457e 5706 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
f891dcfd
KD		 5707 event_data->ReasonCode !=
5708 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
8ffc457e
KD		 5709 return;
5710
5711 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5712 sas_address = le64_to_cpu(event_data->SASAddress);
5713 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5714 sas_address);
8ffc457e 5715
09da0b32 5716 if (!sas_device || !sas_device->starget) {
5717 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
8ffc457e 5718 return;
09da0b32 5719 }
8ffc457e
KD		 5720
5721 target_priv_data = sas_device->starget->hostdata;
09da0b32 5722 if (!target_priv_data) {
5723 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
8ffc457e 5724 return;
09da0b32 5725 }
8ffc457e
KD		 5726
5727 if (event_data->ReasonCode ==
5728 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5729 target_priv_data->tm_busy = 1;
5730 else
5731 target_priv_data->tm_busy = 0;
09da0b32 5732 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
635374e7
EM		 5733}
5734
5735#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5736/**
5737 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
5738 * @ioc: per adapter object
5739 * @event_data: event data payload
5740 * Context: user.
5741 *
5742 * Return nothing.
5743 */
5744static void
5745_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5746 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
5747{
5748 char *reason_str = NULL;
5749
5750 switch (event_data->ReasonCode) {
5751 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
5752 reason_str = "enclosure add";
5753 break;
5754 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
5755 reason_str = "enclosure remove";
5756 break;
5757 default:
5758 reason_str = "unknown reason";
5759 break;
5760 }
5761
eabb08ad 5762 printk(MPT2SAS_INFO_FMT "enclosure status change: (%s)\n"
635374e7
EM		 5763 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
5764 " number slots(%d)\n", ioc->name, reason_str,
5765 le16_to_cpu(event_data->EnclosureHandle),
5766 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5767 le16_to_cpu(event_data->StartSlot));
5768}
5769#endif
5770
5771/**
5772 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5773 * @ioc: per adapter object
7b936b02 5774 * @fw_event: The fw_event_work object
635374e7
EM		 5775 * Context: user.
5776 *
5777 * Return nothing.
5778 */
5779static void
5780_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
7b936b02 5781 struct fw_event_work *fw_event)
635374e7
EM		 5782{
5783#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5784 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5785 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
7b936b02 5786 fw_event->event_data);
635374e7
EM		 5787#endif
5788}
5789
5790/**
a78e21dc 5791 * _scsih_sas_broadcast_primitive_event - handle broadcast events
635374e7 5792 * @ioc: per adapter object
7b936b02 5793 * @fw_event: The fw_event_work object
635374e7
EM		 5794 * Context: user.
5795 *
5796 * Return nothing.
5797 */
5798static void
a78e21dc 5799_scsih_sas_broadcast_primitive_event(struct MPT2SAS_ADAPTER *ioc,
7b936b02 5800 struct fw_event_work *fw_event)
635374e7
EM		 5801{
5802 struct scsi_cmnd *scmd;
ec07a053 5803 struct scsi_device *sdev;
635374e7
EM		 5804 u16 smid, handle;
5805 u32 lun;
5806 struct MPT2SAS_DEVICE *sas_device_priv_data;
5807 u32 termination_count;
5808 u32 query_count;
5809 Mpi2SCSITaskManagementReply_t *mpi_reply;
7b936b02 5810 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
463217bf 5811 u16 ioc_status;
ec07a053
KD		 5812 unsigned long flags;
5813 int r;
f93213de
KD		 5814 u8 max_retries = 0;
5815 u8 task_abort_retries;
ec07a053 5816
f93213de
KD		 5817 mutex_lock(&ioc->tm_cmds.mutex);
5818 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: phy number(%d), "
5819 "width(%d)\n", ioc->name, __func__, event_data->PhyNum,
5820 event_data->PortWidth));
5821
5822 _scsih_block_io_all_device(ioc);
635374e7 5823
ec07a053 5824 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
f93213de
KD		 5825 mpi_reply = ioc->tm_cmds.reply;
5826broadcast_aen_retry:
5827
5828 /* sanity checks for retrying this loop */
5829 if (max_retries++ == 5) {
5830 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: giving up\n",
5831 ioc->name, __func__));
5832 goto out;
5833 } else if (max_retries > 1)
5834 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %d retry\n",
5835 ioc->name, __func__, max_retries - 1));
5836
635374e7
EM		 5837 termination_count = 0;
5838 query_count = 0;
595bb0bd 5839 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
921cd802 5840 if (ioc->shost_recovery)
f93213de 5841 goto out;
635374e7
EM		 5842 scmd = _scsih_scsi_lookup_get(ioc, smid);
5843 if (!scmd)
5844 continue;
ec07a053
KD		 5845 sdev = scmd->device;
5846 sas_device_priv_data = sdev->hostdata;
635374e7
EM		 5847 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5848 continue;
5849 /* skip hidden raid components */
5850 if (sas_device_priv_data->sas_target->flags &
5851 MPT_TARGET_FLAGS_RAID_COMPONENT)
5852 continue;
5853 /* skip volumes */
5854 if (sas_device_priv_data->sas_target->flags &
5855 MPT_TARGET_FLAGS_VOLUME)
5856 continue;
5857
5858 handle = sas_device_priv_data->sas_target->handle;
5859 lun = sas_device_priv_data->lun;
5860 query_count++;
5861
921cd802 5862 if (ioc->shost_recovery)
f93213de
KD		 5863 goto out;
5864
ec07a053 5865 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
f93213de
KD		 5866 r = mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5867 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
5868 TM_MUTEX_OFF);
5869 if (r == FAILED) {
5870 sdev_printk(KERN_WARNING, sdev,
5871 "mpt2sas_scsih_issue_tm: FAILED when sending "
5872 "QUERY_TASK: scmd(%p)\n", scmd);
5873 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5874 goto broadcast_aen_retry;
5875 }
463217bf
KD		 5876 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5877 & MPI2_IOCSTATUS_MASK;
f93213de
KD		 5878 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5879 sdev_printk(KERN_WARNING, sdev, "query task: FAILED "
5880 "with IOCSTATUS(0x%04x), scmd(%p)\n", ioc_status,
5881 scmd);
5882 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5883 goto broadcast_aen_retry;
5884 }
5885
5886 /* see if IO is still owned by IOC and target */
5887 if (mpi_reply->ResponseCode ==
635374e7
EM		 5888 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5889 mpi_reply->ResponseCode ==
f93213de 5890 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
ec07a053 5891 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
635374e7 5892 continue;
ec07a053 5893 }
f93213de
KD		 5894 task_abort_retries = 0;
5895 tm_retry:
5896 if (task_abort_retries++ == 60) {
5897 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
5898 "%s: ABORT_TASK: giving up\n", ioc->name,
5899 __func__));
5900 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5901 goto broadcast_aen_retry;
5902 }
5903
921cd802 5904 if (ioc->shost_recovery)
f93213de
KD		 5905 goto out_no_lock;
5906
ec07a053
KD		 5907 r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
5908 sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
f93213de
KD		 5909 scmd->serial_number, TM_MUTEX_OFF);
5910 if (r == FAILED) {
5911 sdev_printk(KERN_WARNING, sdev,
5912 "mpt2sas_scsih_issue_tm: ABORT_TASK: FAILED : "
ec07a053 5913 "scmd(%p)\n", scmd);
f93213de
KD		 5914 goto tm_retry;
5915 }
5916
5917 if (task_abort_retries > 1)
5918 sdev_printk(KERN_WARNING, sdev,
5919 "mpt2sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
5920 " scmd(%p)\n",
5921 task_abort_retries - 1, scmd);
5922
635374e7 5923 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
ec07a053 5924 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
635374e7 5925 }
f93213de
KD		 5926
5927 if (ioc->broadcast_aen_pending) {
5928 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: loop back due to"
5929 " pending AEN\n", ioc->name, __func__));
5930 ioc->broadcast_aen_pending = 0;
5931 goto broadcast_aen_retry;
5932 }
5933
5934 out:
ec07a053 5935 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
f93213de 5936 out_no_lock:
635374e7 5937
f93213de 5938 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 5939 "%s - exit, query_count = %d termination_count = %d\n",
5940 ioc->name, __func__, query_count, termination_count));
f93213de
KD		 5941
5942 ioc->broadcast_aen_busy = 0;
921cd802 5943 if (!ioc->shost_recovery)
f93213de
KD		 5944 _scsih_ublock_io_all_device(ioc);
5945 mutex_unlock(&ioc->tm_cmds.mutex);
635374e7
EM		 5946}
5947
5948/**
5949 * _scsih_sas_discovery_event - handle discovery events
5950 * @ioc: per adapter object
7b936b02 5951 * @fw_event: The fw_event_work object
635374e7
EM		 5952 * Context: user.
5953 *
5954 * Return nothing.
5955 */
5956static void
7b936b02
KD		 5957_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
5958 struct fw_event_work *fw_event)
635374e7 5959{
7b936b02
KD		 5960 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5961
635374e7
EM		 5962#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5963 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
eabb08ad 5964 printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
635374e7
EM		 5965 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5966 "start" : "stop");
5967 if (event_data->DiscoveryStatus)
595bb0bd
KD		 5968 printk("discovery_status(0x%08x)",
5969 le32_to_cpu(event_data->DiscoveryStatus));
635374e7
EM		 5970 printk("\n");
5971 }
5972#endif
5973
5974 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
4b193175 5975 !ioc->sas_hba.num_phys) {
5976 if (disable_discovery > 0 && ioc->shost_recovery) {
5977 /* Wait for the reset to complete */
5978 while (ioc->shost_recovery)
5979 ssleep(1);
5980 }
635374e7 5981 _scsih_sas_host_add(ioc);
4b193175 5982 }
635374e7
EM		 5983}
5984
5985/**
5986 * _scsih_reprobe_lun - reprobing lun
5987 * @sdev: scsi device struct
5988 * @no_uld_attach: sdev->no_uld_attach flag setting
5989 *
5990 **/
5991static void
5992_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5993{
5994 int rc;
5995
5996 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5997 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5998 sdev->no_uld_attach ? "hidding" : "exposing");
5999 rc = scsi_device_reprobe(sdev);
6000}
6001
635374e7
EM		 6002/**
6003 * _scsih_sas_volume_add - add new volume
6004 * @ioc: per adapter object
6005 * @element: IR config element data
6006 * Context: user.
6007 *
6008 * Return nothing.
6009 */
6010static void
6011_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
6012 Mpi2EventIrConfigElement_t *element)
6013{
6014 struct _raid_device *raid_device;
6015 unsigned long flags;
6016 u64 wwid;
6017 u16 handle = le16_to_cpu(element->VolDevHandle);
6018 int rc;
6019
635374e7
EM		 6020 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
6021 if (!wwid) {
6022 printk(MPT2SAS_ERR_FMT
6023 "failure at %s:%d/%s()!\n", ioc->name,
6024 __FILE__, __LINE__, __func__);
6025 return;
6026 }
6027
6028 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6029 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
6030 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6031
6032 if (raid_device)
6033 return;
6034
6035 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6036 if (!raid_device) {
6037 printk(MPT2SAS_ERR_FMT
6038 "failure at %s:%d/%s()!\n", ioc->name,
6039 __FILE__, __LINE__, __func__);
6040 return;
6041 }
6042
6043 raid_device->id = ioc->sas_id++;
6044 raid_device->channel = RAID_CHANNEL;
6045 raid_device->handle = handle;
6046 raid_device->wwid = wwid;
6047 _scsih_raid_device_add(ioc, raid_device);
921cd802 6048 if (!ioc->wait_for_discovery_to_complete) {
635374e7
EM		 6049 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6050 raid_device->id, 0);
6051 if (rc)
6052 _scsih_raid_device_remove(ioc, raid_device);
09da0b32 6053 } else {
6054 spin_lock_irqsave(&ioc->raid_device_lock, flags);
635374e7 6055 _scsih_determine_boot_device(ioc, raid_device, 1);
09da0b32 6056 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6057 }
635374e7
EM		 6058}
6059
6060/**
6061 * _scsih_sas_volume_delete - delete volume
6062 * @ioc: per adapter object
f3eedd69 6063 * @handle: volume device handle
635374e7
EM		 6064 * Context: user.
6065 *
6066 * Return nothing.
6067 */
6068static void
f3eedd69 6069_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
635374e7
EM		 6070{
6071 struct _raid_device *raid_device;
635374e7
EM		 6072 unsigned long flags;
6073 struct MPT2SAS_TARGET *sas_target_priv_data;
09da0b32 6074 struct scsi_target *starget = NULL;
635374e7 6075
635374e7
EM		 6076 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6077 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
09da0b32 6078 if (raid_device) {
6079 if (raid_device->starget) {
6080 starget = raid_device->starget;
6081 sas_target_priv_data = starget->hostdata;
6082 sas_target_priv_data->deleted = 1;
6083 }
6084 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
6085 "(0x%016llx)\n", ioc->name, raid_device->handle,
6086 (unsigned long long) raid_device->wwid);
6087 list_del(&raid_device->list);
6088 kfree(raid_device);
635374e7 6089 }
09da0b32 6090 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6091 if (starget)
6092 scsi_remove_target(&starget->dev);
635374e7
EM		 6093}
6094
6095/**
6096 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
6097 * @ioc: per adapter object
6098 * @element: IR config element data
6099 * Context: user.
6100 *
6101 * Return nothing.
6102 */
6103static void
6104_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
6105 Mpi2EventIrConfigElement_t *element)
6106{
6107 struct _sas_device *sas_device;
09da0b32 6108 struct scsi_target *starget = NULL;
6109 struct MPT2SAS_TARGET *sas_target_priv_data;
635374e7
EM		 6110 unsigned long flags;
6111 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6112
6113 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6114 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
09da0b32 6115 if (sas_device) {
6116 sas_device->volume_handle = 0;
6117 sas_device->volume_wwid = 0;
6118 clear_bit(handle, ioc->pd_handles);
6119 if (sas_device->starget && sas_device->starget->hostdata) {
6120 starget = sas_device->starget;
6121 sas_target_priv_data = starget->hostdata;
6122 sas_target_priv_data->flags &=
6123 ~MPT_TARGET_FLAGS_RAID_COMPONENT;
6124 }
6125 }
635374e7
EM		 6126 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6127 if (!sas_device)
6128 return;
6129
6130 /* exposing raid component */
09da0b32 6131 if (starget)
6132 starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
635374e7
EM		 6133}
6134
6135/**
6136 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
6137 * @ioc: per adapter object
6138 * @element: IR config element data
6139 * Context: user.
6140 *
6141 * Return nothing.
6142 */
6143static void
6144_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
6145 Mpi2EventIrConfigElement_t *element)
6146{
6147 struct _sas_device *sas_device;
09da0b32 6148 struct scsi_target *starget = NULL;
6149 struct MPT2SAS_TARGET *sas_target_priv_data;
635374e7
EM		 6150 unsigned long flags;
6151 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
09da0b32 6152 u16 volume_handle = 0;
6153 u64 volume_wwid = 0;
6154
6155 mpt2sas_config_get_volume_handle(ioc, handle, &volume_handle);
6156 if (volume_handle)
6157 mpt2sas_config_get_volume_wwid(ioc, volume_handle,
6158 &volume_wwid);
635374e7
EM		 6159
6160 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6161 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
09da0b32 6162 if (sas_device) {
6163 set_bit(handle, ioc->pd_handles);
6164 if (sas_device->starget && sas_device->starget->hostdata) {
6165 starget = sas_device->starget;
6166 sas_target_priv_data = starget->hostdata;
6167 sas_target_priv_data->flags |=
6168 MPT_TARGET_FLAGS_RAID_COMPONENT;
6169 sas_device->volume_handle = volume_handle;
6170 sas_device->volume_wwid = volume_wwid;
6171 }
6172 }
635374e7
EM		 6173 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6174 if (!sas_device)
6175 return;
6176
6177 /* hiding raid component */
09da0b32 6178 if (starget)
6179 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
635374e7
EM		 6180}
6181
6182/**
6183 * _scsih_sas_pd_delete - delete pd component
6184 * @ioc: per adapter object
6185 * @element: IR config element data
6186 * Context: user.
6187 *
6188 * Return nothing.
6189 */
6190static void
6191_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
6192 Mpi2EventIrConfigElement_t *element)
6193{
635374e7
EM		 6194 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6195
09da0b32 6196 _scsih_device_remove_by_handle(ioc, handle);
635374e7
EM		 6197}
6198
6199/**
6200 * _scsih_sas_pd_add - remove pd component
6201 * @ioc: per adapter object
6202 * @element: IR config element data
6203 * Context: user.
6204 *
6205 * Return nothing.
6206 */
6207static void
6208_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
6209 Mpi2EventIrConfigElement_t *element)
6210{
6211 struct _sas_device *sas_device;
6212 unsigned long flags;
6213 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
62727a7b
KD		 6214 Mpi2ConfigReply_t mpi_reply;
6215 Mpi2SasDevicePage0_t sas_device_pg0;
6216 u32 ioc_status;
c5e039be
KD		 6217 u64 sas_address;
6218 u16 parent_handle;
635374e7 6219
f3eedd69
KD		 6220 set_bit(handle, ioc->pd_handles);
6221
635374e7
EM		 6222 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6223 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6224 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
f3eedd69 6225 if (sas_device)
62727a7b 6226 return;
62727a7b
KD		 6227
6228 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
6229 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
6230 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6231 ioc->name, __FILE__, __LINE__, __func__);
6232 return;
6233 }
6234
6235 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6236 MPI2_IOCSTATUS_MASK;
6237 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6238 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6239 ioc->name, __FILE__, __LINE__, __func__);
6240 return;
6241 }
6242
c5e039be
KD		 6243 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6244 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6245 mpt2sas_transport_update_links(ioc, sas_address, handle,
6246 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
62727a7b
KD		 6247
6248 _scsih_add_device(ioc, handle, 0, 1);
635374e7
EM		 6249}
6250
6251#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6252/**
6253 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
6254 * @ioc: per adapter object
6255 * @event_data: event data payload
6256 * Context: user.
6257 *
6258 * Return nothing.
6259 */
6260static void
6261_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
6262 Mpi2EventDataIrConfigChangeList_t *event_data)
6263{
6264 Mpi2EventIrConfigElement_t *element;
6265 u8 element_type;
6266 int i;
6267 char *reason_str = NULL, *element_str = NULL;
6268
6269 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6270
eabb08ad 6271 printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
635374e7
EM		 6272 ioc->name, (le32_to_cpu(event_data->Flags) &
6273 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
6274 "foreign" : "native", event_data->NumElements);
6275 for (i = 0; i < event_data->NumElements; i++, element++) {
6276 switch (element->ReasonCode) {
6277 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6278 reason_str = "add";
6279 break;
6280 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6281 reason_str = "remove";
6282 break;
6283 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
6284 reason_str = "no change";
6285 break;
6286 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6287 reason_str = "hide";
6288 break;
6289 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6290 reason_str = "unhide";
6291 break;
6292 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6293 reason_str = "volume_created";
6294 break;
6295 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6296 reason_str = "volume_deleted";
6297 break;
6298 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6299 reason_str = "pd_created";
6300 break;
6301 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6302 reason_str = "pd_deleted";
6303 break;
6304 default:
6305 reason_str = "unknown reason";
6306 break;
6307 }
6308 element_type = le16_to_cpu(element->ElementFlags) &
6309 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
6310 switch (element_type) {
6311 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
6312 element_str = "volume";
6313 break;
6314 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
6315 element_str = "phys disk";
6316 break;
6317 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
6318 element_str = "hot spare";
6319 break;
6320 default:
6321 element_str = "unknown element";
6322 break;
6323 }
eabb08ad 6324 printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
635374e7
EM		 6325 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
6326 reason_str, le16_to_cpu(element->VolDevHandle),
6327 le16_to_cpu(element->PhysDiskDevHandle),
6328 element->PhysDiskNum);
6329 }
6330}
6331#endif
6332
6333/**
6334 * _scsih_sas_ir_config_change_event - handle ir configuration change events
6335 * @ioc: per adapter object
7b936b02 6336 * @fw_event: The fw_event_work object
635374e7
EM		 6337 * Context: user.
6338 *
6339 * Return nothing.
6340 */
6341static void
7b936b02
KD		 6342_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
6343 struct fw_event_work *fw_event)
635374e7
EM		 6344{
6345 Mpi2EventIrConfigElement_t *element;
6346 int i;
62727a7b 6347 u8 foreign_config;
7b936b02 6348 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
635374e7
EM		 6349
6350#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
0bdccdb0
KD		 6351 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6352 && !ioc->hide_ir_msg)
635374e7
EM		 6353 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
6354
6355#endif
921cd802 6356
6357 if (ioc->shost_recovery)
6358 return;
6359
62727a7b
KD		 6360 foreign_config = (le32_to_cpu(event_data->Flags) &
6361 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
635374e7
EM		 6362
6363 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6364 for (i = 0; i < event_data->NumElements; i++, element++) {
6365
6366 switch (element->ReasonCode) {
6367 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6368 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
62727a7b
KD		 6369 if (!foreign_config)
6370 _scsih_sas_volume_add(ioc, element);
635374e7
EM		 6371 break;
6372 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6373 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
62727a7b 6374 if (!foreign_config)
f3eedd69
KD		 6375 _scsih_sas_volume_delete(ioc,
6376 le16_to_cpu(element->VolDevHandle));
635374e7
EM		 6377 break;
6378 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
0bdccdb0
KD		 6379 if (!ioc->is_warpdrive)
6380 _scsih_sas_pd_hide(ioc, element);
635374e7
EM		 6381 break;
6382 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
0bdccdb0
KD		 6383 if (!ioc->is_warpdrive)
6384 _scsih_sas_pd_expose(ioc, element);
635374e7
EM		 6385 break;
6386 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
0bdccdb0
KD		 6387 if (!ioc->is_warpdrive)
6388 _scsih_sas_pd_add(ioc, element);
635374e7
EM		 6389 break;
6390 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
0bdccdb0
KD		 6391 if (!ioc->is_warpdrive)
6392 _scsih_sas_pd_delete(ioc, element);
635374e7
EM		 6393 break;
6394 }
6395 }
6396}
6397
6398/**
6399 * _scsih_sas_ir_volume_event - IR volume event
6400 * @ioc: per adapter object
7b936b02 6401 * @fw_event: The fw_event_work object
635374e7
EM		 6402 * Context: user.
6403 *
6404 * Return nothing.
6405 */
6406static void
7b936b02
KD		 6407_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
6408 struct fw_event_work *fw_event)
635374e7
EM		 6409{
6410 u64 wwid;
6411 unsigned long flags;
6412 struct _raid_device *raid_device;
6413 u16 handle;
6414 u32 state;
6415 int rc;
7b936b02 6416 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
635374e7 6417
921cd802 6418 if (ioc->shost_recovery)
6419 return;
6420
635374e7
EM		 6421 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
6422 return;
6423
6424 handle = le16_to_cpu(event_data->VolDevHandle);
6425 state = le32_to_cpu(event_data->NewValue);
0bdccdb0
KD		 6426 if (!ioc->hide_ir_msg)
6427 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6428 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6429 le32_to_cpu(event_data->PreviousValue), state));
635374e7 6430
635374e7
EM		 6431 switch (state) {
6432 case MPI2_RAID_VOL_STATE_MISSING:
6433 case MPI2_RAID_VOL_STATE_FAILED:
f3eedd69 6434 _scsih_sas_volume_delete(ioc, handle);
635374e7
EM		 6435 break;
6436
6437 case MPI2_RAID_VOL_STATE_ONLINE:
6438 case MPI2_RAID_VOL_STATE_DEGRADED:
6439 case MPI2_RAID_VOL_STATE_OPTIMAL:
f3eedd69
KD		 6440
6441 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6442 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6443 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6444
635374e7
EM		 6445 if (raid_device)
6446 break;
6447
6448 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
6449 if (!wwid) {
6450 printk(MPT2SAS_ERR_FMT
6451 "failure at %s:%d/%s()!\n", ioc->name,
6452 __FILE__, __LINE__, __func__);
6453 break;
6454 }
6455
6456 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6457 if (!raid_device) {
6458 printk(MPT2SAS_ERR_FMT
6459 "failure at %s:%d/%s()!\n", ioc->name,
6460 __FILE__, __LINE__, __func__);
6461 break;
6462 }
6463
6464 raid_device->id = ioc->sas_id++;
6465 raid_device->channel = RAID_CHANNEL;
6466 raid_device->handle = handle;
6467 raid_device->wwid = wwid;
6468 _scsih_raid_device_add(ioc, raid_device);
6469 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6470 raid_device->id, 0);
6471 if (rc)
6472 _scsih_raid_device_remove(ioc, raid_device);
6473 break;
6474
6475 case MPI2_RAID_VOL_STATE_INITIALIZING:
6476 default:
6477 break;
6478 }
6479}
6480
6481/**
6482 * _scsih_sas_ir_physical_disk_event - PD event
6483 * @ioc: per adapter object
7b936b02 6484 * @fw_event: The fw_event_work object
635374e7
EM		 6485 * Context: user.
6486 *
6487 * Return nothing.
6488 */
6489static void
7b936b02
KD		 6490_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
6491 struct fw_event_work *fw_event)
635374e7 6492{
c5e039be 6493 u16 handle, parent_handle;
635374e7
EM		 6494 u32 state;
6495 struct _sas_device *sas_device;
6496 unsigned long flags;
62727a7b
KD		 6497 Mpi2ConfigReply_t mpi_reply;
6498 Mpi2SasDevicePage0_t sas_device_pg0;
6499 u32 ioc_status;
7b936b02 6500 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
c5e039be 6501 u64 sas_address;
635374e7 6502
921cd802 6503 if (ioc->shost_recovery)
6504 return;
6505
635374e7
EM		 6506 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
6507 return;
6508
6509 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
6510 state = le32_to_cpu(event_data->NewValue);
6511
0bdccdb0
KD		 6512 if (!ioc->hide_ir_msg)
6513 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6514 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6515 le32_to_cpu(event_data->PreviousValue), state));
635374e7 6516
635374e7 6517 switch (state) {
635374e7
EM		 6518 case MPI2_RAID_PD_STATE_ONLINE:
6519 case MPI2_RAID_PD_STATE_DEGRADED:
6520 case MPI2_RAID_PD_STATE_REBUILDING:
6521 case MPI2_RAID_PD_STATE_OPTIMAL:
f3eedd69
KD		 6522 case MPI2_RAID_PD_STATE_HOT_SPARE:
6523
0bdccdb0
KD		 6524 if (!ioc->is_warpdrive)
6525 set_bit(handle, ioc->pd_handles);
f3eedd69
KD		 6526
6527 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6528 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6529 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6530
6531 if (sas_device)
62727a7b 6532 return;
62727a7b
KD		 6533
6534 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6535 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6536 handle))) {
6537 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6538 ioc->name, __FILE__, __LINE__, __func__);
6539 return;
6540 }
6541
6542 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6543 MPI2_IOCSTATUS_MASK;
6544 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6545 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6546 ioc->name, __FILE__, __LINE__, __func__);
6547 return;
6548 }
6549
c5e039be
KD		 6550 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6551 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6552 mpt2sas_transport_update_links(ioc, sas_address, handle,
6553 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
62727a7b
KD		 6554
6555 _scsih_add_device(ioc, handle, 0, 1);
6556
635374e7
EM		 6557 break;
6558
62727a7b 6559 case MPI2_RAID_PD_STATE_OFFLINE:
635374e7
EM		 6560 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
6561 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
635374e7
EM		 6562 default:
6563 break;
6564 }
6565}
6566
6567#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6568/**
6569 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
6570 * @ioc: per adapter object
6571 * @event_data: event data payload
6572 * Context: user.
6573 *
6574 * Return nothing.
6575 */
6576static void
6577_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
6578 Mpi2EventDataIrOperationStatus_t *event_data)
6579{
6580 char *reason_str = NULL;
6581
6582 switch (event_data->RAIDOperation) {
6583 case MPI2_EVENT_IR_RAIDOP_RESYNC:
6584 reason_str = "resync";
6585 break;
6586 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
6587 reason_str = "online capacity expansion";
6588 break;
6589 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
6590 reason_str = "consistency check";
6591 break;
ec6c2b43
KD		 6592 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
6593 reason_str = "background init";
6594 break;
6595 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
6596 reason_str = "make data consistent";
635374e7
EM		 6597 break;
6598 }
6599
ec6c2b43
KD		 6600 if (!reason_str)
6601 return;
6602
635374e7
EM		 6603 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
6604 "\thandle(0x%04x), percent complete(%d)\n",
6605 ioc->name, reason_str,
6606 le16_to_cpu(event_data->VolDevHandle),
6607 event_data->PercentComplete);
6608}
6609#endif
6610
6611/**
6612 * _scsih_sas_ir_operation_status_event - handle RAID operation events
6613 * @ioc: per adapter object
7b936b02 6614 * @fw_event: The fw_event_work object
635374e7
EM		 6615 * Context: user.
6616 *
6617 * Return nothing.
6618 */
6619static void
7b936b02
KD		 6620_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
6621 struct fw_event_work *fw_event)
635374e7 6622{
f7c95ef0
KD		 6623 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
6624 static struct _raid_device *raid_device;
6625 unsigned long flags;
6626 u16 handle;
6627
635374e7 6628#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
0bdccdb0
KD		 6629 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6630 && !ioc->hide_ir_msg)
7b936b02 6631 _scsih_sas_ir_operation_status_event_debug(ioc,
f7c95ef0 6632 event_data);
635374e7 6633#endif
f7c95ef0
KD		 6634
6635 /* code added for raid transport support */
6636 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
6637
f7c95ef0 6638 spin_lock_irqsave(&ioc->raid_device_lock, flags);
09da0b32 6639 handle = le16_to_cpu(event_data->VolDevHandle);
f7c95ef0 6640 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
09da0b32 6641 if (raid_device)
f7c95ef0
KD		 6642 raid_device->percent_complete =
6643 event_data->PercentComplete;
09da0b32 6644 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
f7c95ef0 6645 }
635374e7
EM		 6646}
6647
14695853
KD		 6648/**
6649 * _scsih_prep_device_scan - initialize parameters prior to device scan
6650 * @ioc: per adapter object
6651 *
6652 * Set the deleted flag prior to device scan. If the device is found during
6653 * the scan, then we clear the deleted flag.
6654 */
6655static void
6656_scsih_prep_device_scan(struct MPT2SAS_ADAPTER *ioc)
6657{
6658 struct MPT2SAS_DEVICE *sas_device_priv_data;
6659 struct scsi_device *sdev;
6660
6661 shost_for_each_device(sdev, ioc->shost) {
6662 sas_device_priv_data = sdev->hostdata;
6663 if (sas_device_priv_data && sas_device_priv_data->sas_target)
6664 sas_device_priv_data->sas_target->deleted = 1;
6665 }
6666}
6667
635374e7
EM		 6668/**
6669 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6670 * @ioc: per adapter object
6671 * @sas_address: sas address
6672 * @slot: enclosure slot id
6673 * @handle: device handle
6674 *
6675 * After host reset, find out whether devices are still responding.
6676 * Used in _scsi_remove_unresponsive_sas_devices.
6677 *
6678 * Return nothing.
6679 */
6680static void
6681_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6682 u16 slot, u16 handle)
6683{
0bdccdb0 6684 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
635374e7
EM		 6685 struct scsi_target *starget;
6686 struct _sas_device *sas_device;
6687 unsigned long flags;
6688
6689 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6690 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6691 if (sas_device->sas_address == sas_address &&
0bdccdb0 6692 sas_device->slot == slot) {
635374e7 6693 sas_device->responding = 1;
77e63ed4 6694 starget = sas_device->starget;
14695853
KD		 6695 if (starget && starget->hostdata) {
6696 sas_target_priv_data = starget->hostdata;
6697 sas_target_priv_data->tm_busy = 0;
6698 sas_target_priv_data->deleted = 0;
6699 } else
6700 sas_target_priv_data = NULL;
0bdccdb0
KD		 6701 if (starget)
6702 starget_printk(KERN_INFO, starget,
6703 "handle(0x%04x), sas_addr(0x%016llx), "
6704 "enclosure logical id(0x%016llx), "
6705 "slot(%d)\n", handle,
6706 (unsigned long long)sas_device->sas_address,
6707 (unsigned long long)
6708 sas_device->enclosure_logical_id,
6709 sas_device->slot);
635374e7
EM		 6710 if (sas_device->handle == handle)
6711 goto out;
6712 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6713 sas_device->handle);
6714 sas_device->handle = handle;
14695853
KD		 6715 if (sas_target_priv_data)
6716 sas_target_priv_data->handle = handle;
635374e7
EM		 6717 goto out;
6718 }
6719 }
6720 out:
6721 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6722}
6723
6724/**
6725 * _scsih_search_responding_sas_devices -
6726 * @ioc: per adapter object
6727 *
6728 * After host reset, find out whether devices are still responding.
6729 * If not remove.
6730 *
6731 * Return nothing.
6732 */
6733static void
6734_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
6735{
6736 Mpi2SasDevicePage0_t sas_device_pg0;
6737 Mpi2ConfigReply_t mpi_reply;
6738 u16 ioc_status;
6739 __le64 sas_address;
6740 u16 handle;
6741 u32 device_info;
6742 u16 slot;
6743
921cd802 6744 printk(MPT2SAS_INFO_FMT "search for end-devices: start\n", ioc->name);
635374e7
EM		 6745
6746 if (list_empty(&ioc->sas_device_list))
921cd802 6747 goto out;
635374e7
EM		 6748
6749 handle = 0xFFFF;
6750 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6751 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6752 handle))) {
6753 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6754 MPI2_IOCSTATUS_MASK;
6755 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6756 break;
6757 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6758 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6759 if (!(_scsih_is_end_device(device_info)))
6760 continue;
6761 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
6762 slot = le16_to_cpu(sas_device_pg0.Slot);
6763 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
6764 handle);
6765 }
921cd802 6766out:
6767 printk(MPT2SAS_INFO_FMT "search for end-devices: complete\n",
6768 ioc->name);
635374e7
EM		 6769}
6770
6771/**
6772 * _scsih_mark_responding_raid_device - mark a raid_device as responding
6773 * @ioc: per adapter object
6774 * @wwid: world wide identifier for raid volume
6775 * @handle: device handle
6776 *
6777 * After host reset, find out whether devices are still responding.
6778 * Used in _scsi_remove_unresponsive_raid_devices.
6779 *
6780 * Return nothing.
6781 */
6782static void
6783_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
6784 u16 handle)
6785{
6786 struct MPT2SAS_TARGET *sas_target_priv_data;
6787 struct scsi_target *starget;
6788 struct _raid_device *raid_device;
6789 unsigned long flags;
6790
6791 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6792 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
6793 if (raid_device->wwid == wwid && raid_device->starget) {
14695853
KD		 6794 starget = raid_device->starget;
6795 if (starget && starget->hostdata) {
6796 sas_target_priv_data = starget->hostdata;
6797 sas_target_priv_data->deleted = 0;
6798 } else
6799 sas_target_priv_data = NULL;
635374e7 6800 raid_device->responding = 1;
30c43282 6801 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
635374e7
EM		 6802 starget_printk(KERN_INFO, raid_device->starget,
6803 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6804 (unsigned long long)raid_device->wwid);
0bdccdb0
KD		 6805 /*
6806 * WARPDRIVE: The handles of the PDs might have changed
6807 * across the host reset so re-initialize the
6808 * required data for Direct IO
6809 */
6810 _scsih_init_warpdrive_properties(ioc, raid_device);
09da0b32 6811 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6812 if (raid_device->handle == handle) {
6813 spin_unlock_irqrestore(&ioc->raid_device_lock,
6814 flags);
30c43282 6815 return;
09da0b32 6816 }
635374e7
EM		 6817 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6818 raid_device->handle);
6819 raid_device->handle = handle;
14695853
KD		 6820 if (sas_target_priv_data)
6821 sas_target_priv_data->handle = handle;
09da0b32 6822 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
30c43282 6823 return;
635374e7
EM		 6824 }
6825 }
30c43282 6826
635374e7
EM		 6827 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6828}
6829
6830/**
6831 * _scsih_search_responding_raid_devices -
6832 * @ioc: per adapter object
6833 *
6834 * After host reset, find out whether devices are still responding.
6835 * If not remove.
6836 *
6837 * Return nothing.
6838 */
6839static void
6840_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
6841{
6842 Mpi2RaidVolPage1_t volume_pg1;
d417d1c3 6843 Mpi2RaidVolPage0_t volume_pg0;
f3eedd69 6844 Mpi2RaidPhysDiskPage0_t pd_pg0;
635374e7
EM		 6845 Mpi2ConfigReply_t mpi_reply;
6846 u16 ioc_status;
6847 u16 handle;
f3eedd69 6848 u8 phys_disk_num;
635374e7 6849
921cd802 6850 if (!ioc->ir_firmware)
6851 return;
6852
6853 printk(MPT2SAS_INFO_FMT "search for raid volumes: start\n",
6854 ioc->name);
635374e7
EM		 6855
6856 if (list_empty(&ioc->raid_device_list))
921cd802 6857 goto out;
635374e7
EM		 6858
6859 handle = 0xFFFF;
6860 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6861 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6862 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6863 MPI2_IOCSTATUS_MASK;
6864 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6865 break;
6866 handle = le16_to_cpu(volume_pg1.DevHandle);
d417d1c3
KD		 6867
6868 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6869 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6870 sizeof(Mpi2RaidVolPage0_t)))
6871 continue;
6872
6873 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6874 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6875 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6876 _scsih_mark_responding_raid_device(ioc,
6877 le64_to_cpu(volume_pg1.WWID), handle);
635374e7 6878 }
f3eedd69
KD		 6879
6880 /* refresh the pd_handles */
0bdccdb0
KD		 6881 if (!ioc->is_warpdrive) {
6882 phys_disk_num = 0xFF;
6883 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6884 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6885 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6886 phys_disk_num))) {
6887 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6888 MPI2_IOCSTATUS_MASK;
6889 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6890 break;
6891 phys_disk_num = pd_pg0.PhysDiskNum;
6892 handle = le16_to_cpu(pd_pg0.DevHandle);
6893 set_bit(handle, ioc->pd_handles);
6894 }
f3eedd69 6895 }
921cd802 6896out:
6897 printk(MPT2SAS_INFO_FMT "search for responding raid volumes: "
6898 "complete\n", ioc->name);
635374e7
EM		 6899}
6900
6901/**
6902 * _scsih_mark_responding_expander - mark a expander as responding
6903 * @ioc: per adapter object
6904 * @sas_address: sas address
6905 * @handle:
6906 *
6907 * After host reset, find out whether devices are still responding.
6908 * Used in _scsi_remove_unresponsive_expanders.
6909 *
6910 * Return nothing.
6911 */
6912static void
6913_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6914 u16 handle)
6915{
6916 struct _sas_node *sas_expander;
6917 unsigned long flags;
c5e039be 6918 int i;
635374e7
EM		 6919
6920 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6921 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
c5e039be
KD		 6922 if (sas_expander->sas_address != sas_address)
6923 continue;
6924 sas_expander->responding = 1;
6925 if (sas_expander->handle == handle)
635374e7 6926 goto out;
c5e039be
KD		 6927 printk(KERN_INFO "\texpander(0x%016llx): handle changed"
6928 " from(0x%04x) to (0x%04x)!!!\n",
6929 (unsigned long long)sas_expander->sas_address,
6930 sas_expander->handle, handle);
6931 sas_expander->handle = handle;
6932 for (i = 0 ; i < sas_expander->num_phys ; i++)
6933 sas_expander->phy[i].handle = handle;
6934 goto out;
635374e7
EM		 6935 }
6936 out:
6937 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6938}
6939
6940/**
6941 * _scsih_search_responding_expanders -
6942 * @ioc: per adapter object
6943 *
6944 * After host reset, find out whether devices are still responding.
6945 * If not remove.
6946 *
6947 * Return nothing.
6948 */
6949static void
6950_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
6951{
6952 Mpi2ExpanderPage0_t expander_pg0;
6953 Mpi2ConfigReply_t mpi_reply;
6954 u16 ioc_status;
c97951ec 6955 u64 sas_address;
635374e7
EM		 6956 u16 handle;
6957
921cd802 6958 printk(MPT2SAS_INFO_FMT "search for expanders: start\n", ioc->name);
635374e7
EM		 6959
6960 if (list_empty(&ioc->sas_expander_list))
921cd802 6961 goto out;
635374e7
EM		 6962
6963 handle = 0xFFFF;
6964 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6965 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6966
6967 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6968 MPI2_IOCSTATUS_MASK;
6969 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6970 break;
6971
6972 handle = le16_to_cpu(expander_pg0.DevHandle);
6973 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6974 printk(KERN_INFO "\texpander present: handle(0x%04x), "
6975 "sas_addr(0x%016llx)\n", handle,
6976 (unsigned long long)sas_address);
6977 _scsih_mark_responding_expander(ioc, sas_address, handle);
6978 }
6979
921cd802 6980 out:
6981 printk(MPT2SAS_INFO_FMT "search for expanders: complete\n", ioc->name);
635374e7
EM		 6982}
6983
6984/**
f1c35e6a 6985 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
635374e7
EM		 6986 * @ioc: per adapter object
6987 *
6988 * Return nothing.
6989 */
6990static void
f1c35e6a 6991_scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
635374e7
EM		 6992{
6993 struct _sas_device *sas_device, *sas_device_next;
09da0b32 6994 struct _sas_node *sas_expander, *sas_expander_next;
635374e7 6995 struct _raid_device *raid_device, *raid_device_next;
09da0b32 6996 struct list_head tmp_list;
6997 unsigned long flags;
635374e7 6998
921cd802 6999 printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n",
7000 ioc->name);
635374e7 7001
09da0b32 7002 /* removing unresponding end devices */
7003 printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n",
7004 ioc->name);
635374e7
EM		 7005 list_for_each_entry_safe(sas_device, sas_device_next,
7006 &ioc->sas_device_list, list) {
09da0b32 7007 if (!sas_device->responding)
39af7a98 7008 mpt2sas_device_remove_by_sas_address(ioc,
7009 sas_device->sas_address);
09da0b32 7010 else
635374e7 7011 sas_device->responding = 0;
635374e7
EM		 7012 }
7013
09da0b32 7014 /* removing unresponding volumes */
7015 if (ioc->ir_firmware) {
7016 printk(MPT2SAS_INFO_FMT "removing unresponding devices: "
7017 "volumes\n", ioc->name);
7018 list_for_each_entry_safe(raid_device, raid_device_next,
7019 &ioc->raid_device_list, list) {
7020 if (!raid_device->responding)
7021 _scsih_sas_volume_delete(ioc,
7022 raid_device->handle);
7023 else
7024 raid_device->responding = 0;
635374e7 7025 }
635374e7 7026 }
09da0b32 7027 /* removing unresponding expanders */
7028 printk(MPT2SAS_INFO_FMT "removing unresponding devices: expanders\n",
7029 ioc->name);
7030 spin_lock_irqsave(&ioc->sas_node_lock, flags);
7031 INIT_LIST_HEAD(&tmp_list);
7032 list_for_each_entry_safe(sas_expander, sas_expander_next,
7033 &ioc->sas_expander_list, list) {
7034 if (!sas_expander->responding)
7035 list_move_tail(&sas_expander->list, &tmp_list);
7036 else
635374e7 7037 sas_expander->responding = 0;
09da0b32 7038 }
7039 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
7040 list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
7041 list) {
7042 list_del(&sas_expander->list);
7043 _scsih_expander_node_remove(ioc, sas_expander);
cd4e12e8 7044 }
921cd802 7045 printk(MPT2SAS_INFO_FMT "removing unresponding devices: complete\n",
7046 ioc->name);
7047 /* unblock devices */
7048 _scsih_ublock_io_all_device(ioc);
7049}
7050
7051static void
7052_scsih_refresh_expander_links(struct MPT2SAS_ADAPTER *ioc,
7053 struct _sas_node *sas_expander, u16 handle)
7054{
7055 Mpi2ExpanderPage1_t expander_pg1;
7056 Mpi2ConfigReply_t mpi_reply;
7057 int i;
7058
7059 for (i = 0 ; i < sas_expander->num_phys ; i++) {
7060 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
7061 &expander_pg1, i, handle))) {
7062 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7063 ioc->name, __FILE__, __LINE__, __func__);
7064 return;
7065 }
7066
7067 mpt2sas_transport_update_links(ioc, sas_expander->sas_address,
7068 le16_to_cpu(expander_pg1.AttachedDevHandle), i,
7069 expander_pg1.NegotiatedLinkRate >> 4);
7070 }
cd4e12e8
KD		 7071}
7072
0bdccdb0 7073/**
921cd802 7074 * _scsih_scan_for_devices_after_reset - scan for devices after host reset
0bdccdb0
KD		 7075 * @ioc: per adapter object
7076 *
7077 * Return nothing.
7078 */
7079static void
921cd802 7080_scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
0bdccdb0 7081{
921cd802 7082 Mpi2ExpanderPage0_t expander_pg0;
7083 Mpi2SasDevicePage0_t sas_device_pg0;
7084 Mpi2RaidVolPage1_t volume_pg1;
7085 Mpi2RaidVolPage0_t volume_pg0;
7086 Mpi2RaidPhysDiskPage0_t pd_pg0;
7087 Mpi2EventIrConfigElement_t element;
7088 Mpi2ConfigReply_t mpi_reply;
7089 u8 phys_disk_num;
7090 u16 ioc_status;
7091 u16 handle, parent_handle;
7092 u64 sas_address;
7093 struct _sas_device *sas_device;
7094 struct _sas_node *expander_device;
7095 static struct _raid_device *raid_device;
09da0b32 7096 unsigned long flags;
0bdccdb0 7097
921cd802 7098 printk(MPT2SAS_INFO_FMT "scan devices: start\n", ioc->name);
0bdccdb0 7099
921cd802 7100 _scsih_sas_host_refresh(ioc);
7101
7102 /* expanders */
7103 handle = 0xFFFF;
7104 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
7105 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
7106 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7107 MPI2_IOCSTATUS_MASK;
7108 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
7109 break;
7110 handle = le16_to_cpu(expander_pg0.DevHandle);
09da0b32 7111 spin_lock_irqsave(&ioc->sas_node_lock, flags);
921cd802 7112 expander_device = mpt2sas_scsih_expander_find_by_sas_address(
7113 ioc, le64_to_cpu(expander_pg0.SASAddress));
09da0b32 7114 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
921cd802 7115 if (expander_device)
7116 _scsih_refresh_expander_links(ioc, expander_device,
7117 handle);
7118 else
7119 _scsih_expander_add(ioc, handle);
7120 }
7121
7122 if (!ioc->ir_firmware)
7123 goto skip_to_sas;
7124
7125 /* phys disk */
7126 phys_disk_num = 0xFF;
7127 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
7128 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
7129 phys_disk_num))) {
7130 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7131 MPI2_IOCSTATUS_MASK;
7132 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
7133 break;
7134 phys_disk_num = pd_pg0.PhysDiskNum;
7135 handle = le16_to_cpu(pd_pg0.DevHandle);
09da0b32 7136 spin_lock_irqsave(&ioc->sas_device_lock, flags);
921cd802 7137 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
09da0b32 7138 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
921cd802 7139 if (sas_device)
7140 continue;
7141 if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
7142 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
7143 handle) != 0)
7144 continue;
7145 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
7146 if (!_scsih_get_sas_address(ioc, parent_handle,
7147 &sas_address)) {
7148 mpt2sas_transport_update_links(ioc, sas_address,
7149 handle, sas_device_pg0.PhyNum,
7150 MPI2_SAS_NEG_LINK_RATE_1_5);
7151 set_bit(handle, ioc->pd_handles);
7152 _scsih_add_device(ioc, handle, 0, 1);
0bdccdb0 7153 }
921cd802 7154 }
7155
7156 /* volumes */
7157 handle = 0xFFFF;
7158 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
7159 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
7160 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7161 MPI2_IOCSTATUS_MASK;
7162 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
7163 break;
7164 handle = le16_to_cpu(volume_pg1.DevHandle);
09da0b32 7165 spin_lock_irqsave(&ioc->raid_device_lock, flags);
921cd802 7166 raid_device = _scsih_raid_device_find_by_wwid(ioc,
7167 le64_to_cpu(volume_pg1.WWID));
09da0b32 7168 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
921cd802 7169 if (raid_device)
7170 continue;
7171 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
7172 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
7173 sizeof(Mpi2RaidVolPage0_t)))
7174 continue;
7175 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
7176 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
7177 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
7178 memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
7179 element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
7180 element.VolDevHandle = volume_pg1.DevHandle;
7181 _scsih_sas_volume_add(ioc, &element);
7182 }
7183 }
7184
7185 skip_to_sas:
7186
7187 /* sas devices */
7188 handle = 0xFFFF;
7189 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
7190 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
7191 handle))) {
7192 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7193 MPI2_IOCSTATUS_MASK;
7194 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
7195 break;
7196 handle = le16_to_cpu(sas_device_pg0.DevHandle);
7197 if (!(_scsih_is_end_device(
7198 le32_to_cpu(sas_device_pg0.DeviceInfo))))
7199 continue;
09da0b32 7200 spin_lock_irqsave(&ioc->sas_device_lock, flags);
921cd802 7201 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
7202 le64_to_cpu(sas_device_pg0.SASAddress));
09da0b32 7203 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
921cd802 7204 if (sas_device)
7205 continue;
7206 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
7207 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
7208 mpt2sas_transport_update_links(ioc, sas_address, handle,
7209 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
7210 _scsih_add_device(ioc, handle, 0, 0);
0bdccdb0
KD		 7211 }
7212 }
921cd802 7213
7214 printk(MPT2SAS_INFO_FMT "scan devices: complete\n", ioc->name);
0bdccdb0
KD		 7215}
7216
921cd802 7217
cd4e12e8
KD		 7218/**
7219 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
7220 * @ioc: per adapter object
7221 * @reset_phase: phase
7222 *
7223 * The handler for doing any required cleanup or initialization.
7224 *
7225 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
7226 * MPT2_IOC_DONE_RESET
7227 *
7228 * Return nothing.
7229 */
7230void
7231mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
7232{
7233 switch (reset_phase) {
7234 case MPT2_IOC_PRE_RESET:
eabb08ad 7235 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
cd4e12e8 7236 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
cd4e12e8
KD		 7237 break;
7238 case MPT2_IOC_AFTER_RESET:
eabb08ad 7239 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
cd4e12e8 7240 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
f1c35e6a
KD		 7241 if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
7242 ioc->scsih_cmds.status |= MPT2_CMD_RESET;
7243 mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
7244 complete(&ioc->scsih_cmds.done);
7245 }
cd4e12e8
KD		 7246 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
7247 ioc->tm_cmds.status |= MPT2_CMD_RESET;
7248 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
7249 complete(&ioc->tm_cmds.done);
7250 }
f1c35e6a 7251 _scsih_fw_event_cleanup_queue(ioc);
cd4e12e8
KD		 7252 _scsih_flush_running_cmds(ioc);
7253 break;
7254 case MPT2_IOC_DONE_RESET:
eabb08ad 7255 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
cd4e12e8 7256 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
c5e039be 7257 _scsih_sas_host_refresh(ioc);
14695853
KD		 7258 _scsih_prep_device_scan(ioc);
7259 _scsih_search_responding_sas_devices(ioc);
7260 _scsih_search_responding_raid_devices(ioc);
7261 _scsih_search_responding_expanders(ioc);
14aa7f7e 7262 if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
7263 !ioc->sas_hba.num_phys)) {
918134ef 7264 _scsih_prep_device_scan(ioc);
7265 _scsih_search_responding_sas_devices(ioc);
7266 _scsih_search_responding_raid_devices(ioc);
7267 _scsih_search_responding_expanders(ioc);
921cd802 7268 _scsih_error_recovery_delete_devices(ioc);
918134ef 7269 }
cd4e12e8 7270 break;
635374e7
EM		 7271 }
7272}
7273
7274/**
7275 * _firmware_event_work - delayed task for processing firmware events
7276 * @ioc: per adapter object
7277 * @work: equal to the fw_event_work object
7278 * Context: user.
7279 *
7280 * Return nothing.
7281 */
7282static void
7283_firmware_event_work(struct work_struct *work)
7284{
7285 struct fw_event_work *fw_event = container_of(work,
f1c35e6a 7286 struct fw_event_work, delayed_work.work);
635374e7
EM		 7287 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
7288
635374e7 7289 /* the queue is being flushed so ignore this event */
3cb5469a
EM		 7290 if (ioc->remove_host || fw_event->cancel_pending_work ||
7291 ioc->pci_error_recovery) {
635374e7
EM		 7292 _scsih_fw_event_free(ioc, fw_event);
7293 return;
7294 }
635374e7 7295
921cd802 7296 switch (fw_event->event) {
7297 case MPT2SAS_REMOVE_UNRESPONDING_DEVICES:
09da0b32 7298 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
921cd802 7299 ssleep(1);
f1c35e6a 7300 _scsih_remove_unresponding_sas_devices(ioc);
921cd802 7301 _scsih_scan_for_devices_after_reset(ioc);
7302 break;
7303 case MPT2SAS_PORT_ENABLE_COMPLETE:
918134ef 7304 ioc->start_scan = 0;
921cd802 7305
7306
7307
7308 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "port enable: complete "
7309 "from worker thread\n", ioc->name));
7310 break;
3ace8e05
KD		 7311 case MPT2SAS_TURN_ON_FAULT_LED:
7312 _scsih_turn_on_fault_led(ioc, fw_event->device_handle);
7313 break;
635374e7 7314 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7b936b02 7315 _scsih_sas_topology_change_event(ioc, fw_event);
635374e7
EM		 7316 break;
7317 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7b936b02
KD		 7318 _scsih_sas_device_status_change_event(ioc,
7319 fw_event);
635374e7
EM		 7320 break;
7321 case MPI2_EVENT_SAS_DISCOVERY:
7b936b02
KD		 7322 _scsih_sas_discovery_event(ioc,
7323 fw_event);
635374e7
EM		 7324 break;
7325 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
a78e21dc 7326 _scsih_sas_broadcast_primitive_event(ioc,
7b936b02 7327 fw_event);
635374e7
EM		 7328 break;
7329 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7330 _scsih_sas_enclosure_dev_status_change_event(ioc,
7b936b02 7331 fw_event);
635374e7
EM		 7332 break;
7333 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7b936b02 7334 _scsih_sas_ir_config_change_event(ioc, fw_event);
635374e7
EM		 7335 break;
7336 case MPI2_EVENT_IR_VOLUME:
7b936b02 7337 _scsih_sas_ir_volume_event(ioc, fw_event);
635374e7
EM		 7338 break;
7339 case MPI2_EVENT_IR_PHYSICAL_DISK:
7b936b02 7340 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
635374e7
EM		 7341 break;
7342 case MPI2_EVENT_IR_OPERATION_STATUS:
7b936b02 7343 _scsih_sas_ir_operation_status_event(ioc, fw_event);
635374e7 7344 break;
635374e7
EM		 7345 }
7346 _scsih_fw_event_free(ioc, fw_event);
7347}
7348
7349/**
7350 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
7351 * @ioc: per adapter object
7b936b02 7352 * @msix_index: MSIX table index supplied by the OS
635374e7
EM		 7353 * @reply: reply message frame(lower 32bit addr)
7354 * Context: interrupt.
7355 *
7356 * This function merely adds a new work task into ioc->firmware_event_thread.
7357 * The tasks are worked from _firmware_event_work in user context.
7358 *
77e63ed4
KD		 7359 * Return 1 meaning mf should be freed from _base_interrupt
7360 * 0 means the mf is freed from this function.
635374e7 7361 */
77e63ed4 7362u8
7b936b02
KD		 7363mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
7364 u32 reply)
635374e7
EM		 7365{
7366 struct fw_event_work *fw_event;
7367 Mpi2EventNotificationReply_t *mpi_reply;
635374e7 7368 u16 event;
e94f6747 7369 u16 sz;
635374e7
EM		 7370
7371 /* events turned off due to host reset or driver unloading */
3cb5469a 7372 if (ioc->remove_host || ioc->pci_error_recovery)
77e63ed4 7373 return 1;
635374e7 7374
77e63ed4 7375 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
298c794d 7376
7377 if (unlikely(!mpi_reply)) {
7378 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
7379 ioc->name, __FILE__, __LINE__, __func__);
7380 return 1;
7381 }
7382
635374e7
EM		 7383 event = le16_to_cpu(mpi_reply->Event);
7384
7385 switch (event) {
7386 /* handle these */
7387 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7388 {
7389 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
7390 (Mpi2EventDataSasBroadcastPrimitive_t *)
7391 mpi_reply->EventData;
7392
7393 if (baen_data->Primitive !=
f93213de 7394 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
77e63ed4 7395 return 1;
f93213de
KD		 7396
7397 if (ioc->broadcast_aen_busy) {
7398 ioc->broadcast_aen_pending++;
7399 return 1;
7400 } else
7401 ioc->broadcast_aen_busy = 1;
635374e7
EM		 7402 break;
7403 }
7404
7405 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7406 _scsih_check_topo_delete_events(ioc,
7407 (Mpi2EventDataSasTopologyChangeList_t *)
7408 mpi_reply->EventData);
7409 break;
f3eedd69
KD		 7410 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7411 _scsih_check_ir_config_unhide_events(ioc,
7412 (Mpi2EventDataIrConfigChangeList_t *)
7413 mpi_reply->EventData);
7414 break;
7415 case MPI2_EVENT_IR_VOLUME:
7416 _scsih_check_volume_delete_events(ioc,
7417 (Mpi2EventDataIrVolume_t *)
7418 mpi_reply->EventData);
7419 break;
0bdccdb0
KD		 7420 case MPI2_EVENT_LOG_ENTRY_ADDED:
7421 {
7422 Mpi2EventDataLogEntryAdded_t *log_entry;
d838c36c 7423 __le32 *log_code;
0bdccdb0
KD		 7424
7425 if (!ioc->is_warpdrive)
7426 break;
7427
7428 log_entry = (Mpi2EventDataLogEntryAdded_t *)
7429 mpi_reply->EventData;
d838c36c 7430 log_code = (__le32 *)log_entry->LogData;
0bdccdb0
KD		 7431
7432 if (le16_to_cpu(log_entry->LogEntryQualifier)
7433 != MPT2_WARPDRIVE_LOGENTRY)
7434 break;
7435
7436 switch (le32_to_cpu(*log_code)) {
7437 case MPT2_WARPDRIVE_LC_SSDT:
7438 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7439 "IO Throttling has occurred in the WarpDrive "
7440 "subsystem. Check WarpDrive documentation for "
7441 "additional details.\n", ioc->name);
7442 break;
7443 case MPT2_WARPDRIVE_LC_SSDLW:
7444 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7445 "Program/Erase Cycles for the WarpDrive subsystem "
7446 "in degraded range. Check WarpDrive documentation "
7447 "for additional details.\n", ioc->name);
7448 break;
7449 case MPT2_WARPDRIVE_LC_SSDLF:
7450 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7451 "There are no Program/Erase Cycles for the "
7452 "WarpDrive subsystem. The storage device will be "
7453 "in read-only mode. Check WarpDrive documentation "
7454 "for additional details.\n", ioc->name);
7455 break;
7456 case MPT2_WARPDRIVE_LC_BRMF:
7457 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7458 "The Backup Rail Monitor has failed on the "
7459 "WarpDrive subsystem. Check WarpDrive "
7460 "documentation for additional details.\n",
7461 ioc->name);
7462 break;
7463 }
7464
7465 break;
7466 }
635374e7
EM		 7467 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7468 case MPI2_EVENT_IR_OPERATION_STATUS:
7469 case MPI2_EVENT_SAS_DISCOVERY:
7470 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
635374e7 7471 case MPI2_EVENT_IR_PHYSICAL_DISK:
635374e7
EM		 7472 break;
7473
7474 default: /* ignore the rest */
77e63ed4 7475 return 1;
635374e7
EM		 7476 }
7477
7478 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
7479 if (!fw_event) {
7480 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7481 ioc->name, __FILE__, __LINE__, __func__);
77e63ed4 7482 return 1;
635374e7 7483 }
e94f6747
KD		 7484 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
7485 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
635374e7
EM		 7486 if (!fw_event->event_data) {
7487 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7488 ioc->name, __FILE__, __LINE__, __func__);
7489 kfree(fw_event);
77e63ed4 7490 return 1;
635374e7
EM		 7491 }
7492
7493 memcpy(fw_event->event_data, mpi_reply->EventData,
e94f6747 7494 sz);
635374e7 7495 fw_event->ioc = ioc;
7b936b02
KD		 7496 fw_event->VF_ID = mpi_reply->VF_ID;
7497 fw_event->VP_ID = mpi_reply->VP_ID;
635374e7
EM		 7498 fw_event->event = event;
7499 _scsih_fw_event_add(ioc, fw_event);
77e63ed4 7500 return 1;
635374e7
EM		 7501}
7502
7503/* shost template */
7504static struct scsi_host_template scsih_driver_template = {
7505 .module = THIS_MODULE,
7506 .name = "Fusion MPT SAS Host",
7507 .proc_name = MPT2SAS_DRIVER_NAME,
d5d135b3
EM		 7508 .queuecommand = _scsih_qcmd,
7509 .target_alloc = _scsih_target_alloc,
7510 .slave_alloc = _scsih_slave_alloc,
7511 .slave_configure = _scsih_slave_configure,
7512 .target_destroy = _scsih_target_destroy,
7513 .slave_destroy = _scsih_slave_destroy,
921cd802 7514 .scan_finished = _scsih_scan_finished,
7515 .scan_start = _scsih_scan_start,
d5d135b3
EM		 7516 .change_queue_depth = _scsih_change_queue_depth,
7517 .change_queue_type = _scsih_change_queue_type,
7518 .eh_abort_handler = _scsih_abort,
7519 .eh_device_reset_handler = _scsih_dev_reset,
7520 .eh_target_reset_handler = _scsih_target_reset,
7521 .eh_host_reset_handler = _scsih_host_reset,
7522 .bios_param = _scsih_bios_param,
635374e7
EM		 7523 .can_queue = 1,
7524 .this_id = -1,
7525 .sg_tablesize = MPT2SAS_SG_DEPTH,
9ac49d3a 7526 .max_sectors = 32767,
635374e7
EM		 7527 .cmd_per_lun = 7,
7528 .use_clustering = ENABLE_CLUSTERING,
7529 .shost_attrs = mpt2sas_host_attrs,
7530 .sdev_attrs = mpt2sas_dev_attrs,
7531};
7532
7533/**
7534 * _scsih_expander_node_remove - removing expander device from list.
7535 * @ioc: per adapter object
7536 * @sas_expander: the sas_device object
7537 * Context: Calling function should acquire ioc->sas_node_lock.
7538 *
7539 * Removing object and freeing associated memory from the
7540 * ioc->sas_expander_list.
7541 *
7542 * Return nothing.
7543 */
7544static void
7545_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
7546 struct _sas_node *sas_expander)
7547{
7f6f794d 7548 struct _sas_port *mpt2sas_port, *next;
635374e7
EM		 7549
7550 /* remove sibling ports attached to this expander */
7f6f794d 7551 list_for_each_entry_safe(mpt2sas_port, next,
635374e7 7552 &sas_expander->sas_port_list, port_list) {
7f6f794d
KD		 7553 if (ioc->shost_recovery)
7554 return;
635374e7 7555 if (mpt2sas_port->remote_identify.device_type ==
7f6f794d 7556 SAS_END_DEVICE)
09da0b32 7557 mpt2sas_device_remove_by_sas_address(ioc,
7f6f794d
KD		 7558 mpt2sas_port->remote_identify.sas_address);
7559 else if (mpt2sas_port->remote_identify.device_type ==
7560 SAS_EDGE_EXPANDER_DEVICE ||
635374e7 7561 mpt2sas_port->remote_identify.device_type ==
7f6f794d
KD		 7562 SAS_FANOUT_EXPANDER_DEVICE)
7563 mpt2sas_expander_remove(ioc,
7564 mpt2sas_port->remote_identify.sas_address);
635374e7
EM		 7565 }
7566
7567 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
c5e039be 7568 sas_expander->sas_address_parent);
635374e7
EM		 7569
7570 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
7571 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
7572 sas_expander->handle, (unsigned long long)
7573 sas_expander->sas_address);
7574
635374e7
EM		 7575 kfree(sas_expander->phy);
7576 kfree(sas_expander);
7577}
7578
744090d3
KD		 7579/**
7580 * _scsih_ir_shutdown - IR shutdown notification
7581 * @ioc: per adapter object
7582 *
7583 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
7584 * the host system is shutting down.
7585 *
7586 * Return nothing.
7587 */
7588static void
7589_scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
7590{
7591 Mpi2RaidActionRequest_t *mpi_request;
7592 Mpi2RaidActionReply_t *mpi_reply;
7593 u16 smid;
7594
7595 /* is IR firmware build loaded ? */
7596 if (!ioc->ir_firmware)
7597 return;
7598
7599 /* are there any volumes ? */
7600 if (list_empty(&ioc->raid_device_list))
7601 return;
7602
7603 mutex_lock(&ioc->scsih_cmds.mutex);
7604
7605 if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
7606 printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
7607 ioc->name, __func__);
7608 goto out;
7609 }
7610 ioc->scsih_cmds.status = MPT2_CMD_PENDING;
7611
7612 smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
7613 if (!smid) {
7614 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
7615 ioc->name, __func__);
7616 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7617 goto out;
7618 }
7619
7620 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
7621 ioc->scsih_cmds.smid = smid;
7622 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
7623
7624 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
7625 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
7626
0bdccdb0
KD		 7627 if (!ioc->hide_ir_msg)
7628 printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
744090d3
KD		 7629 init_completion(&ioc->scsih_cmds.done);
7630 mpt2sas_base_put_smid_default(ioc, smid);
7631 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
7632
7633 if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
7634 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
7635 ioc->name, __func__);
7636 goto out;
7637 }
7638
7639 if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
7640 mpi_reply = ioc->scsih_cmds.reply;
7641
0bdccdb0
KD		 7642 if (!ioc->hide_ir_msg)
7643 printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
7644 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7645 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
7646 le32_to_cpu(mpi_reply->IOCLogInfo));
744090d3
KD		 7647 }
7648
7649 out:
7650 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7651 mutex_unlock(&ioc->scsih_cmds.mutex);
7652}
7653
7654/**
7655 * _scsih_shutdown - routine call during system shutdown
7656 * @pdev: PCI device struct
7657 *
7658 * Return nothing.
7659 */
7660static void
7661_scsih_shutdown(struct pci_dev *pdev)
7662{
7663 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7664 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
f1c35e6a
KD		 7665 struct workqueue_struct *wq;
7666 unsigned long flags;
7667
7668 ioc->remove_host = 1;
7669 _scsih_fw_event_cleanup_queue(ioc);
7670
7671 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7672 wq = ioc->firmware_event_thread;
7673 ioc->firmware_event_thread = NULL;
7674 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7675 if (wq)
7676 destroy_workqueue(wq);
744090d3
KD		 7677
7678 _scsih_ir_shutdown(ioc);
7679 mpt2sas_base_detach(ioc);
7680}
7681
635374e7 7682/**
d5d135b3 7683 * _scsih_remove - detach and remove add host
635374e7
EM		 7684 * @pdev: PCI device struct
7685 *
744090d3 7686 * Routine called when unloading the driver.
635374e7
EM		 7687 * Return nothing.
7688 */
7689static void __devexit
d5d135b3 7690_scsih_remove(struct pci_dev *pdev)
635374e7
EM		 7691{
7692 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7693 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7f6f794d 7694 struct _sas_port *mpt2sas_port, *next_port;
d7384b28
KD		 7695 struct _raid_device *raid_device, *next;
7696 struct MPT2SAS_TARGET *sas_target_priv_data;
635374e7
EM		 7697 struct workqueue_struct *wq;
7698 unsigned long flags;
7699
7700 ioc->remove_host = 1;
f1c35e6a 7701 _scsih_fw_event_cleanup_queue(ioc);
635374e7
EM		 7702
7703 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7704 wq = ioc->firmware_event_thread;
7705 ioc->firmware_event_thread = NULL;
7706 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7707 if (wq)
7708 destroy_workqueue(wq);
7709
d7384b28 7710 /* release all the volumes */
3a9c913a 7711 _scsih_ir_shutdown(ioc);
d7384b28
KD		 7712 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
7713 list) {
7714 if (raid_device->starget) {
7715 sas_target_priv_data =
7716 raid_device->starget->hostdata;
7717 sas_target_priv_data->deleted = 1;
7718 scsi_remove_target(&raid_device->starget->dev);
7719 }
7720 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
7721 "(0x%016llx)\n", ioc->name, raid_device->handle,
7722 (unsigned long long) raid_device->wwid);
7723 _scsih_raid_device_remove(ioc, raid_device);
7724 }
7725
635374e7 7726 /* free ports attached to the sas_host */
7f6f794d 7727 list_for_each_entry_safe(mpt2sas_port, next_port,
635374e7
EM		 7728 &ioc->sas_hba.sas_port_list, port_list) {
7729 if (mpt2sas_port->remote_identify.device_type ==
7f6f794d 7730 SAS_END_DEVICE)
09da0b32 7731 mpt2sas_device_remove_by_sas_address(ioc,
7f6f794d
KD		 7732 mpt2sas_port->remote_identify.sas_address);
7733 else if (mpt2sas_port->remote_identify.device_type ==
7734 SAS_EDGE_EXPANDER_DEVICE ||
7735 mpt2sas_port->remote_identify.device_type ==
7736 SAS_FANOUT_EXPANDER_DEVICE)
7737 mpt2sas_expander_remove(ioc,
635374e7 7738 mpt2sas_port->remote_identify.sas_address);
635374e7
EM		 7739 }
7740
7741 /* free phys attached to the sas_host */
7742 if (ioc->sas_hba.num_phys) {
7743 kfree(ioc->sas_hba.phy);
7744 ioc->sas_hba.phy = NULL;
7745 ioc->sas_hba.num_phys = 0;
7746 }
7747
7748 sas_remove_host(shost);
9ae89b02 7749 mpt2sas_base_detach(ioc);
635374e7
EM		 7750 list_del(&ioc->list);
7751 scsi_remove_host(shost);
7752 scsi_host_put(shost);
7753}
7754
7755/**
7756 * _scsih_probe_boot_devices - reports 1st device
7757 * @ioc: per adapter object
7758 *
7759 * If specified in bios page 2, this routine reports the 1st
7760 * device scsi-ml or sas transport for persistent boot device
7761 * purposes. Please refer to function _scsih_determine_boot_device()
7762 */
7763static void
7764_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
7765{
7766 u8 is_raid;
7767 void *device;
7768 struct _sas_device *sas_device;
7769 struct _raid_device *raid_device;
c5e039be
KD		 7770 u16 handle;
7771 u64 sas_address_parent;
635374e7
EM		 7772 u64 sas_address;
7773 unsigned long flags;
7774 int rc;
7775
921cd802 7776 /* no Bios, return immediately */
7777 if (!ioc->bios_pg3.BiosVersion)
7778 return;
7779
635374e7 7780 device = NULL;
921cd802 7781 is_raid = 0;
635374e7
EM		 7782 if (ioc->req_boot_device.device) {
7783 device = ioc->req_boot_device.device;
7784 is_raid = ioc->req_boot_device.is_raid;
7785 } else if (ioc->req_alt_boot_device.device) {
7786 device = ioc->req_alt_boot_device.device;
7787 is_raid = ioc->req_alt_boot_device.is_raid;
7788 } else if (ioc->current_boot_device.device) {
7789 device = ioc->current_boot_device.device;
7790 is_raid = ioc->current_boot_device.is_raid;
7791 }
7792
7793 if (!device)
7794 return;
7795
7796 if (is_raid) {
7797 raid_device = device;
7798 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7799 raid_device->id, 0);
7800 if (rc)
7801 _scsih_raid_device_remove(ioc, raid_device);
7802 } else {
09da0b32 7803 spin_lock_irqsave(&ioc->sas_device_lock, flags);
635374e7
EM		 7804 sas_device = device;
7805 handle = sas_device->handle;
c5e039be 7806 sas_address_parent = sas_device->sas_address_parent;
635374e7 7807 sas_address = sas_device->sas_address;
635374e7
EM		 7808 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7809 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
0bdccdb0
KD		 7810
7811 if (ioc->hide_drives)
7812 return;
635374e7 7813 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
c5e039be 7814 sas_device->sas_address_parent)) {
635374e7
EM		 7815 _scsih_sas_device_remove(ioc, sas_device);
7816 } else if (!sas_device->starget) {
35116db9 7817 if (!ioc->is_driver_loading)
7818 mpt2sas_transport_port_remove(ioc, sas_address,
7819 sas_address_parent);
635374e7
EM		 7820 _scsih_sas_device_remove(ioc, sas_device);
7821 }
7822 }
7823}
7824
7825/**
7826 * _scsih_probe_raid - reporting raid volumes to scsi-ml
7827 * @ioc: per adapter object
7828 *
7829 * Called during initial loading of the driver.
7830 */
7831static void
7832_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
7833{
7834 struct _raid_device *raid_device, *raid_next;
7835 int rc;
7836
7837 list_for_each_entry_safe(raid_device, raid_next,
7838 &ioc->raid_device_list, list) {
7839 if (raid_device->starget)
7840 continue;
7841 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7842 raid_device->id, 0);
7843 if (rc)
7844 _scsih_raid_device_remove(ioc, raid_device);
7845 }
7846}
7847
7848/**
77e63ed4 7849 * _scsih_probe_sas - reporting sas devices to sas transport
635374e7
EM		 7850 * @ioc: per adapter object
7851 *
7852 * Called during initial loading of the driver.
7853 */
7854static void
7855_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
7856{
7857 struct _sas_device *sas_device, *next;
7858 unsigned long flags;
635374e7
EM		 7859
7860 /* SAS Device List */
7861 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7862 list) {
635374e7 7863
0bdccdb0
KD		 7864 if (ioc->hide_drives)
7865 continue;
7866
c5e039be
KD		 7867 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7868 sas_device->sas_address_parent)) {
0167ac67 7869 list_del(&sas_device->list);
7870 kfree(sas_device);
7871 continue;
635374e7 7872 } else if (!sas_device->starget) {
35116db9 7873 if (!ioc->is_driver_loading)
7874 mpt2sas_transport_port_remove(ioc,
7875 sas_device->sas_address,
7876 sas_device->sas_address_parent);
0167ac67 7877 list_del(&sas_device->list);
7878 kfree(sas_device);
7879 continue;
7880
635374e7 7881 }
0167ac67 7882 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7883 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7884 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
635374e7
EM		 7885 }
7886}
7887
7888/**
7889 * _scsih_probe_devices - probing for devices
7890 * @ioc: per adapter object
7891 *
7892 * Called during initial loading of the driver.
7893 */
7894static void
7895_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
7896{
921cd802 7897 u16 volume_mapping_flags;
635374e7
EM		 7898
7899 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
7900 return; /* return when IOC doesn't support initiator mode */
7901
7902 _scsih_probe_boot_devices(ioc);
7903
7904 if (ioc->ir_firmware) {
921cd802 7905 volume_mapping_flags =
7906 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
7907 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
7908 if (volume_mapping_flags ==
7909 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
635374e7 7910 _scsih_probe_raid(ioc);
921cd802 7911 _scsih_probe_sas(ioc);
635374e7 7912 } else {
635374e7 7913 _scsih_probe_sas(ioc);
921cd802 7914 _scsih_probe_raid(ioc);
635374e7
EM		 7915 }
7916 } else
7917 _scsih_probe_sas(ioc);
7918}
7919
921cd802 7920
7921/**
7922 * _scsih_scan_start - scsi lld callback for .scan_start
7923 * @shost: SCSI host pointer
7924 *
7925 * The shost has the ability to discover targets on its own instead
7926 * of scanning the entire bus. In our implemention, we will kick off
7927 * firmware discovery.
7928 */
7929static void
7930_scsih_scan_start(struct Scsi_Host *shost)
7931{
7932 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7933 int rc;
7934
7935 if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
7936 mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable);
7937
4b193175 7938 if (disable_discovery > 0)
7939 return;
7940
921cd802 7941 ioc->start_scan = 1;
7942 rc = mpt2sas_port_enable(ioc);
7943
7944 if (rc != 0)
7945 printk(MPT2SAS_INFO_FMT "port enable: FAILED\n", ioc->name);
7946}
7947
7948/**
7949 * _scsih_scan_finished - scsi lld callback for .scan_finished
7950 * @shost: SCSI host pointer
7951 * @time: elapsed time of the scan in jiffies
7952 *
7953 * This function will be called periodically until it returns 1 with the
7954 * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
7955 * we wait for firmware discovery to complete, then return 1.
7956 */
7957static int
7958_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
7959{
7960 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7961
4b193175 7962 if (disable_discovery > 0) {
7963 ioc->is_driver_loading = 0;
7964 ioc->wait_for_discovery_to_complete = 0;
7965 return 1;
7966 }
7967
921cd802 7968 if (time >= (300 * HZ)) {
7969 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
7970 printk(MPT2SAS_INFO_FMT "port enable: FAILED with timeout "
7971 "(timeout=300s)\n", ioc->name);
7972 ioc->is_driver_loading = 0;
7973 return 1;
7974 }
7975
7976 if (ioc->start_scan)
7977 return 0;
7978
7979 if (ioc->start_scan_failed) {
7980 printk(MPT2SAS_INFO_FMT "port enable: FAILED with "
7981 "(ioc_status=0x%08x)\n", ioc->name, ioc->start_scan_failed);
7982 ioc->is_driver_loading = 0;
7983 ioc->wait_for_discovery_to_complete = 0;
7984 ioc->remove_host = 1;
7985 return 1;
7986 }
7987
7988 printk(MPT2SAS_INFO_FMT "port enable: SUCCESS\n", ioc->name);
7989 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
7990
7991 if (ioc->wait_for_discovery_to_complete) {
7992 ioc->wait_for_discovery_to_complete = 0;
7993 _scsih_probe_devices(ioc);
7994 }
7995 mpt2sas_base_start_watchdog(ioc);
7996 ioc->is_driver_loading = 0;
7997 return 1;
7998}
7999
8000
635374e7 8001/**
d5d135b3 8002 * _scsih_probe - attach and add scsi host
635374e7
EM		 8003 * @pdev: PCI device struct
8004 * @id: pci device id
8005 *
8006 * Returns 0 success, anything else error.
8007 */
8008static int
d5d135b3 8009_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
635374e7
EM		 8010{
8011 struct MPT2SAS_ADAPTER *ioc;
8012 struct Scsi_Host *shost;
8013
8014 shost = scsi_host_alloc(&scsih_driver_template,
8015 sizeof(struct MPT2SAS_ADAPTER));
8016 if (!shost)
8017 return -ENODEV;
8018
8019 /* init local params */
8020 ioc = shost_priv(shost);
8021 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
8022 INIT_LIST_HEAD(&ioc->list);
ba33fadf 8023 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
635374e7
EM		 8024 ioc->shost = shost;
8025 ioc->id = mpt_ids++;
8026 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
8027 ioc->pdev = pdev;
0bdccdb0
KD		 8028 if (id->device == MPI2_MFGPAGE_DEVID_SSS6200) {
8029 ioc->is_warpdrive = 1;
8030 ioc->hide_ir_msg = 1;
8031 } else
8032 ioc->mfg_pg10_hide_flag = MFG_PAGE10_EXPOSE_ALL_DISKS;
635374e7
EM		 8033 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
8034 ioc->tm_cb_idx = tm_cb_idx;
8035 ioc->ctl_cb_idx = ctl_cb_idx;
8036 ioc->base_cb_idx = base_cb_idx;
921cd802 8037 ioc->port_enable_cb_idx = port_enable_cb_idx;
635374e7 8038 ioc->transport_cb_idx = transport_cb_idx;
744090d3 8039 ioc->scsih_cb_idx = scsih_cb_idx;
635374e7 8040 ioc->config_cb_idx = config_cb_idx;
77e63ed4 8041 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
f3eedd69 8042 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
77e63ed4 8043 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
635374e7 8044 ioc->logging_level = logging_level;
845a0e40 8045 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
635374e7 8046 /* misc semaphores and spin locks */
d274213a 8047 mutex_init(&ioc->reset_in_progress_mutex);
635374e7
EM		 8048 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
8049 spin_lock_init(&ioc->scsi_lookup_lock);
8050 spin_lock_init(&ioc->sas_device_lock);
8051 spin_lock_init(&ioc->sas_node_lock);
8052 spin_lock_init(&ioc->fw_event_lock);
8053 spin_lock_init(&ioc->raid_device_lock);
8054
8055 INIT_LIST_HEAD(&ioc->sas_device_list);
8056 INIT_LIST_HEAD(&ioc->sas_device_init_list);
8057 INIT_LIST_HEAD(&ioc->sas_expander_list);
8058 INIT_LIST_HEAD(&ioc->fw_event_list);
8059 INIT_LIST_HEAD(&ioc->raid_device_list);
8060 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
77e63ed4 8061 INIT_LIST_HEAD(&ioc->delayed_tr_list);
f3eedd69 8062 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
635374e7
EM		 8063
8064 /* init shost parameters */
d334aa79 8065 shost->max_cmd_len = 32;
635374e7
EM		 8066 shost->max_lun = max_lun;
8067 shost->transportt = mpt2sas_transport_template;
8068 shost->unique_id = ioc->id;
8069
a3e1e55e
KD		 8070 if (max_sectors != 0xFFFF) {
8071 if (max_sectors < 64) {
8072 shost->max_sectors = 64;
eece5de5 8073 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "\
8074 "for max_sectors, range is 64 to 32767. Assigning "\
a3e1e55e 8075 "value of 64.\n", ioc->name, max_sectors);
9ac49d3a 8076 } else if (max_sectors > 32767) {
8077 shost->max_sectors = 32767;
a3e1e55e
KD		 8078 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
8079 "for max_sectors, range is 64 to 8192. Assigning "
9ac49d3a 8080 "default value of 32767.\n", ioc->name,
a3e1e55e
KD		 8081 max_sectors);
8082 } else {
8083 shost->max_sectors = max_sectors & 0xFFFE;
8084 printk(MPT2SAS_INFO_FMT "The max_sectors value is "
8085 "set to %d\n", ioc->name, shost->max_sectors);
8086 }
8087 }
8088
635374e7
EM		 8089 if ((scsi_add_host(shost, &pdev->dev))) {
8090 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8091 ioc->name, __FILE__, __LINE__, __func__);
8092 list_del(&ioc->list);
8093 goto out_add_shost_fail;
8094 }
8095
5e95e731
MP		 8096 /* register EEDP capabilities with SCSI layer */
8097 if (prot_mask)
8098 scsi_host_set_prot(shost, prot_mask);
8099 else
8100 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
8101 | SHOST_DIF_TYPE2_PROTECTION
8102 | SHOST_DIF_TYPE3_PROTECTION);
8103
77e63ed4 8104 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
3c621b3e 8105
635374e7
EM		 8106 /* event thread */
8107 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
8108 "fw_event%d", ioc->id);
8109 ioc->firmware_event_thread = create_singlethread_workqueue(
8110 ioc->firmware_event_name);
8111 if (!ioc->firmware_event_thread) {
8112 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8113 ioc->name, __FILE__, __LINE__, __func__);
8114 goto out_thread_fail;
8115 }
8116
921cd802 8117 ioc->is_driver_loading = 1;
635374e7
EM		 8118 if ((mpt2sas_base_attach(ioc))) {
8119 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8120 ioc->name, __FILE__, __LINE__, __func__);
8121 goto out_attach_fail;
8122 }
8123
0bdccdb0
KD		 8124 if (ioc->is_warpdrive) {
8125 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS)
8126 ioc->hide_drives = 0;
8127 else if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_HIDE_ALL_DISKS)
8128 ioc->hide_drives = 1;
8129 else {
8130 if (_scsih_get_num_volumes(ioc))
8131 ioc->hide_drives = 1;
8132 else
8133 ioc->hide_drives = 0;
8134 }
8135 } else
8136 ioc->hide_drives = 0;
2cb6fc8c 8137 scsi_scan_host(shost);
0bdccdb0 8138
635374e7
EM		 8139 return 0;
8140
8141 out_attach_fail:
8142 destroy_workqueue(ioc->firmware_event_thread);
8143 out_thread_fail:
8144 list_del(&ioc->list);
8145 scsi_remove_host(shost);
8146 out_add_shost_fail:
f555e052 8147 scsi_host_put(shost);
635374e7
EM		 8148 return -ENODEV;
8149}
8150
8151#ifdef CONFIG_PM
8152/**
d5d135b3 8153 * _scsih_suspend - power management suspend main entry point
635374e7
EM		 8154 * @pdev: PCI device struct
8155 * @state: PM state change to (usually PCI_D3)
8156 *
8157 * Returns 0 success, anything else error.
8158 */
8159static int
d5d135b3 8160_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
635374e7
EM		 8161{
8162 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8163 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
c97951ec 8164 pci_power_t device_state;
635374e7 8165
e4750c98 8166 mpt2sas_base_stop_watchdog(ioc);
635374e7
EM		 8167 scsi_block_requests(shost);
8168 device_state = pci_choose_state(pdev, state);
8169 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
8170 "operating state [D%d]\n", ioc->name, pdev,
8171 pci_name(pdev), device_state);
8172
8173 mpt2sas_base_free_resources(ioc);
8174 pci_save_state(pdev);
8175 pci_disable_device(pdev);
8176 pci_set_power_state(pdev, device_state);
8177 return 0;
8178}
8179
8180/**
d5d135b3 8181 * _scsih_resume - power management resume main entry point
635374e7
EM		 8182 * @pdev: PCI device struct
8183 *
8184 * Returns 0 success, anything else error.
8185 */
8186static int
d5d135b3 8187_scsih_resume(struct pci_dev *pdev)
635374e7
EM		 8188{
8189 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8190 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
c97951ec 8191 pci_power_t device_state = pdev->current_state;
635374e7
EM		 8192 int r;
8193
8194 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
8195 "operating state [D%d]\n", ioc->name, pdev,
8196 pci_name(pdev), device_state);
8197
8198 pci_set_power_state(pdev, PCI_D0);
8199 pci_enable_wake(pdev, PCI_D0, 0);
8200 pci_restore_state(pdev);
8201 ioc->pdev = pdev;
8202 r = mpt2sas_base_map_resources(ioc);
8203 if (r)
8204 return r;
8205
8206 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
8207 scsi_unblock_requests(shost);
e4750c98 8208 mpt2sas_base_start_watchdog(ioc);
635374e7
EM		 8209 return 0;
8210}
8211#endif /* CONFIG_PM */
8212
ef7c80c1
KD		 8213/**
8214 * _scsih_pci_error_detected - Called when a PCI error is detected.
8215 * @pdev: PCI device struct
8216 * @state: PCI channel state
8217 *
8218 * Description: Called when a PCI error is detected.
8219 *
8220 * Return value:
8221 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8222 */
8223static pci_ers_result_t
8224_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8225{
8226 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8227 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8228
8229 printk(MPT2SAS_INFO_FMT "PCI error: detected callback, state(%d)!!\n",
8230 ioc->name, state);
8231
8232 switch (state) {
8233 case pci_channel_io_normal:
8234 return PCI_ERS_RESULT_CAN_RECOVER;
8235 case pci_channel_io_frozen:
3cb5469a
EM		 8236 /* Fatal error, prepare for slot reset */
8237 ioc->pci_error_recovery = 1;
ef7c80c1
KD		 8238 scsi_block_requests(ioc->shost);
8239 mpt2sas_base_stop_watchdog(ioc);
8240 mpt2sas_base_free_resources(ioc);
8241 return PCI_ERS_RESULT_NEED_RESET;
8242 case pci_channel_io_perm_failure:
3cb5469a
EM		 8243 /* Permanent error, prepare for device removal */
8244 ioc->pci_error_recovery = 1;
8245 mpt2sas_base_stop_watchdog(ioc);
8246 _scsih_flush_running_cmds(ioc);
ef7c80c1
KD		 8247 return PCI_ERS_RESULT_DISCONNECT;
8248 }
8249 return PCI_ERS_RESULT_NEED_RESET;
8250}
8251
8252/**
8253 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
8254 * @pdev: PCI device struct
8255 *
8256 * Description: This routine is called by the pci error recovery
8257 * code after the PCI slot has been reset, just before we
8258 * should resume normal operations.
8259 */
8260static pci_ers_result_t
8261_scsih_pci_slot_reset(struct pci_dev *pdev)
8262{
8263 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8264 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8265 int rc;
8266
8267 printk(MPT2SAS_INFO_FMT "PCI error: slot reset callback!!\n",
8268 ioc->name);
8269
3cb5469a 8270 ioc->pci_error_recovery = 0;
ef7c80c1 8271 ioc->pdev = pdev;
3cb5469a 8272 pci_restore_state(pdev);
ef7c80c1
KD		 8273 rc = mpt2sas_base_map_resources(ioc);
8274 if (rc)
8275 return PCI_ERS_RESULT_DISCONNECT;
8276
8277
8278 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8279 FORCE_BIG_HAMMER);
8280
8281 printk(MPT2SAS_WARN_FMT "hard reset: %s\n", ioc->name,
8282 (rc == 0) ? "success" : "failed");
8283
8284 if (!rc)
8285 return PCI_ERS_RESULT_RECOVERED;
8286 else
8287 return PCI_ERS_RESULT_DISCONNECT;
8288}
8289
8290/**
8291 * _scsih_pci_resume() - resume normal ops after PCI reset
8292 * @pdev: pointer to PCI device
8293 *
8294 * Called when the error recovery driver tells us that its
8295 * OK to resume normal operation. Use completion to allow
8296 * halted scsi ops to resume.
8297 */
8298static void
8299_scsih_pci_resume(struct pci_dev *pdev)
8300{
8301 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8302 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8303
8304 printk(MPT2SAS_INFO_FMT "PCI error: resume callback!!\n", ioc->name);
8305
8306 pci_cleanup_aer_uncorrect_error_status(pdev);
8307 mpt2sas_base_start_watchdog(ioc);
8308 scsi_unblock_requests(ioc->shost);
8309}
8310
8311/**
8312 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
8313 * @pdev: pointer to PCI device
8314 */
8315static pci_ers_result_t
8316_scsih_pci_mmio_enabled(struct pci_dev *pdev)
8317{
8318 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8319 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8320
8321 printk(MPT2SAS_INFO_FMT "PCI error: mmio enabled callback!!\n",
8322 ioc->name);
8323
8324 /* TODO - dump whatever for debugging purposes */
8325
8326 /* Request a slot reset. */
8327 return PCI_ERS_RESULT_NEED_RESET;
8328}
8329
a55b2d21 8330static const struct pci_error_handlers _scsih_err_handler = {
ef7c80c1
KD		 8331 .error_detected = _scsih_pci_error_detected,
8332 .mmio_enabled = _scsih_pci_mmio_enabled,
8333 .slot_reset = _scsih_pci_slot_reset,
8334 .resume = _scsih_pci_resume,
8335};
635374e7
EM		 8336
8337static struct pci_driver scsih_driver = {
8338 .name = MPT2SAS_DRIVER_NAME,
8339 .id_table = scsih_pci_table,
d5d135b3
EM		 8340 .probe = _scsih_probe,
8341 .remove = __devexit_p(_scsih_remove),
744090d3 8342 .shutdown = _scsih_shutdown,
ef7c80c1 8343 .err_handler = &_scsih_err_handler,
635374e7 8344#ifdef CONFIG_PM
d5d135b3
EM		 8345 .suspend = _scsih_suspend,
8346 .resume = _scsih_resume,
635374e7
EM		 8347#endif
8348};
8349
f7c95ef0
KD		 8350/* raid transport support */
8351static struct raid_function_template mpt2sas_raid_functions = {
8352 .cookie = &scsih_driver_template,
8353 .is_raid = _scsih_is_raid,
8354 .get_resync = _scsih_get_resync,
8355 .get_state = _scsih_get_state,
8356};
635374e7
EM		 8357
8358/**
d5d135b3 8359 * _scsih_init - main entry point for this driver.
635374e7
EM		 8360 *
8361 * Returns 0 success, anything else error.
8362 */
8363static int __init
d5d135b3 8364_scsih_init(void)
635374e7
EM		 8365{
8366 int error;
8367
8368 mpt_ids = 0;
8369 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
8370 MPT2SAS_DRIVER_VERSION);
8371
8372 mpt2sas_transport_template =
8373 sas_attach_transport(&mpt2sas_transport_functions);
8374 if (!mpt2sas_transport_template)
8375 return -ENODEV;
f7c95ef0
KD		 8376 /* raid transport support */
8377 mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
8378 if (!mpt2sas_raid_template) {
8379 sas_release_transport(mpt2sas_transport_template);
8380 return -ENODEV;
8381 }
635374e7
EM		 8382
8383 mpt2sas_base_initialize_callback_handler();
8384
8385 /* queuecommand callback hander */
d5d135b3 8386 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
635374e7 8387
65155b37 8388 /* task management callback handler */
d5d135b3 8389 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
635374e7
EM		 8390
8391 /* base internal commands callback handler */
8392 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
921cd802 8393 port_enable_cb_idx = mpt2sas_base_register_callback_handler(
8394 mpt2sas_port_enable_done);
635374e7
EM		 8395
8396 /* transport internal commands callback handler */
8397 transport_cb_idx = mpt2sas_base_register_callback_handler(
8398 mpt2sas_transport_done);
8399
744090d3
KD		 8400 /* scsih internal commands callback handler */
8401 scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);
8402
635374e7
EM		 8403 /* configuration page API internal commands callback handler */
8404 config_cb_idx = mpt2sas_base_register_callback_handler(
8405 mpt2sas_config_done);
8406
8407 /* ctl module callback handler */
8408 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
8409
77e63ed4
KD		 8410 tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
8411 _scsih_tm_tr_complete);
f3eedd69
KD		 8412
8413 tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
8414 _scsih_tm_volume_tr_complete);
8415
77e63ed4
KD		 8416 tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
8417 _scsih_sas_control_complete);
8418
635374e7
EM		 8419 mpt2sas_ctl_init();
8420
8421 error = pci_register_driver(&scsih_driver);
f7c95ef0
KD		 8422 if (error) {
8423 /* raid transport support */
8424 raid_class_release(mpt2sas_raid_template);
635374e7 8425 sas_release_transport(mpt2sas_transport_template);
f7c95ef0 8426 }
635374e7
EM		 8427
8428 return error;
8429}
8430
8431/**
d5d135b3 8432 * _scsih_exit - exit point for this driver (when it is a module).
635374e7
EM		 8433 *
8434 * Returns 0 success, anything else error.
8435 */
8436static void __exit
d5d135b3 8437_scsih_exit(void)
635374e7
EM		 8438{
8439 printk(KERN_INFO "mpt2sas version %s unloading\n",
8440 MPT2SAS_DRIVER_VERSION);
8441
8442 pci_unregister_driver(&scsih_driver);
8443
f7c95ef0
KD		 8444 mpt2sas_ctl_exit();
8445
635374e7
EM		 8446 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
8447 mpt2sas_base_release_callback_handler(tm_cb_idx);
8448 mpt2sas_base_release_callback_handler(base_cb_idx);
921cd802 8449 mpt2sas_base_release_callback_handler(port_enable_cb_idx);
635374e7 8450 mpt2sas_base_release_callback_handler(transport_cb_idx);
744090d3 8451 mpt2sas_base_release_callback_handler(scsih_cb_idx);
635374e7
EM		 8452 mpt2sas_base_release_callback_handler(config_cb_idx);
8453 mpt2sas_base_release_callback_handler(ctl_cb_idx);
8454
77e63ed4 8455 mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
f3eedd69 8456 mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
77e63ed4
KD		 8457 mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
8458
f7c95ef0
KD		 8459 /* raid transport support */
8460 raid_class_release(mpt2sas_raid_template);
8461 sas_release_transport(mpt2sas_transport_template);
8462
635374e7
EM		 8463}
8464
d5d135b3
EM		 8465module_init(_scsih_init);
8466module_exit(_scsih_exit);
Linux 6.x block layer and io_uring tree(s)