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[SCSI] mpt2sas: Infinite loop can occur if MPI2_IOCSTATUS_CONFIG_INVALID_PAGE is...
[mirror_ubuntu-artful-kernel.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
d648d5a9 5 * Copyright (C) 2007-2013 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
b0df96a0
RS		 104static int missing_delay[2] = {-1, -1};
105module_param_array(missing_delay, int, NULL, 0);
106MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
107
635374e7
EM		 108/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
109#define MPT2SAS_MAX_LUN (16895)
110static int max_lun = MPT2SAS_MAX_LUN;
111module_param(max_lun, int, 0);
112MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
113
921cd802 114/* diag_buffer_enable is bitwise
115 * bit 0 set = TRACE
116 * bit 1 set = SNAPSHOT
117 * bit 2 set = EXTENDED
118 *
119 * Either bit can be set, or both
120 */
121static int diag_buffer_enable = -1;
122module_param(diag_buffer_enable, int, 0);
123MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
124 "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
125
4b193175 126static int disable_discovery = -1;
127module_param(disable_discovery, int, 0);
128MODULE_PARM_DESC(disable_discovery, " disable discovery ");
129
5e95e731
MP		 130/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
131static int prot_mask = 0;
132module_param(prot_mask, int, 0);
133MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
134
635374e7
EM		 135/**
136 * struct sense_info - common structure for obtaining sense keys
137 * @skey: sense key
138 * @asc: additional sense code
139 * @ascq: additional sense code qualifier
140 */
141struct sense_info {
142 u8 skey;
143 u8 asc;
144 u8 ascq;
145};
146
147
3ace8e05 148#define MPT2SAS_TURN_ON_FAULT_LED (0xFFFC)
921cd802 149#define MPT2SAS_PORT_ENABLE_COMPLETE (0xFFFD)
150#define MPT2SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
635374e7
EM		 151/**
152 * struct fw_event_work - firmware event struct
153 * @list: link list framework
154 * @work: work object (ioc->fault_reset_work_q)
f1c35e6a 155 * @cancel_pending_work: flag set during reset handling
635374e7 156 * @ioc: per adapter object
3ace8e05 157 * @device_handle: device handle
635374e7 158 * @VF_ID: virtual function id
7b936b02 159 * @VP_ID: virtual port id
635374e7
EM		 160 * @ignore: flag meaning this event has been marked to ignore
161 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
162 * @event_data: reply event data payload follows
163 *
164 * This object stored on ioc->fw_event_list.
165 */
166struct fw_event_work {
167 struct list_head list;
f1c35e6a
KD		 168 u8 cancel_pending_work;
169 struct delayed_work delayed_work;
635374e7 170 struct MPT2SAS_ADAPTER *ioc;
3ace8e05 171 u16 device_handle;
635374e7 172 u8 VF_ID;
7b936b02 173 u8 VP_ID;
635374e7
EM		 174 u8 ignore;
175 u16 event;
176 void *event_data;
177};
178
f7c95ef0
KD		 179/* raid transport support */
180static struct raid_template *mpt2sas_raid_template;
181
635374e7
EM		 182/**
183 * struct _scsi_io_transfer - scsi io transfer
184 * @handle: sas device handle (assigned by firmware)
185 * @is_raid: flag set for hidden raid components
186 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
187 * @data_length: data transfer length
188 * @data_dma: dma pointer to data
189 * @sense: sense data
190 * @lun: lun number
191 * @cdb_length: cdb length
192 * @cdb: cdb contents
635374e7 193 * @timeout: timeout for this command
7b936b02
KD		 194 * @VF_ID: virtual function id
195 * @VP_ID: virtual port id
196 * @valid_reply: flag set for reply message
635374e7
EM		 197 * @sense_length: sense length
198 * @ioc_status: ioc status
199 * @scsi_state: scsi state
200 * @scsi_status: scsi staus
201 * @log_info: log information
202 * @transfer_length: data length transfer when there is a reply message
203 *
204 * Used for sending internal scsi commands to devices within this module.
205 * Refer to _scsi_send_scsi_io().
206 */
207struct _scsi_io_transfer {
208 u16 handle;
209 u8 is_raid;
210 enum dma_data_direction dir;
211 u32 data_length;
212 dma_addr_t data_dma;
213 u8 sense[SCSI_SENSE_BUFFERSIZE];
214 u32 lun;
215 u8 cdb_length;
216 u8 cdb[32];
217 u8 timeout;
7b936b02
KD		 218 u8 VF_ID;
219 u8 VP_ID;
635374e7
EM		 220 u8 valid_reply;
221 /* the following bits are only valid when 'valid_reply = 1' */
222 u32 sense_length;
223 u16 ioc_status;
224 u8 scsi_state;
225 u8 scsi_status;
226 u32 log_info;
227 u32 transfer_length;
228};
229
230/*
231 * The pci device ids are defined in mpi/mpi2_cnfg.h.
232 */
233static struct pci_device_id scsih_pci_table[] = {
234 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
235 PCI_ANY_ID, PCI_ANY_ID },
236 /* Falcon ~ 2008*/
237 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
238 PCI_ANY_ID, PCI_ANY_ID },
239 /* Liberator ~ 2108 */
240 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
241 PCI_ANY_ID, PCI_ANY_ID },
242 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
243 PCI_ANY_ID, PCI_ANY_ID },
244 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
245 PCI_ANY_ID, PCI_ANY_ID },
db27136a 246 /* Meteor ~ 2116 */
635374e7
EM		 247 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
248 PCI_ANY_ID, PCI_ANY_ID },
249 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
250 PCI_ANY_ID, PCI_ANY_ID },
db27136a
KD		 251 /* Thunderbolt ~ 2208 */
252 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
253 PCI_ANY_ID, PCI_ANY_ID },
254 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
255 PCI_ANY_ID, PCI_ANY_ID },
256 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
257 PCI_ANY_ID, PCI_ANY_ID },
258 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
259 PCI_ANY_ID, PCI_ANY_ID },
260 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
261 PCI_ANY_ID, PCI_ANY_ID },
262 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
263 PCI_ANY_ID, PCI_ANY_ID },
203d65b1
KD		 264 /* Mustang ~ 2308 */
265 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
db27136a 266 PCI_ANY_ID, PCI_ANY_ID },
203d65b1
KD		 267 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
268 PCI_ANY_ID, PCI_ANY_ID },
269 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
db27136a 270 PCI_ANY_ID, PCI_ANY_ID },
0bdccdb0
KD		 271 /* SSS6200 */
272 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
273 PCI_ANY_ID, PCI_ANY_ID },
635374e7
EM		 274 {0} /* Terminating entry */
275};
276MODULE_DEVICE_TABLE(pci, scsih_pci_table);
277
278/**
d5d135b3 279 * _scsih_set_debug_level - global setting of ioc->logging_level.
635374e7
EM		 280 *
281 * Note: The logging levels are defined in mpt2sas_debug.h.
282 */
283static int
d5d135b3 284_scsih_set_debug_level(const char *val, struct kernel_param *kp)
635374e7
EM		 285{
286 int ret = param_set_int(val, kp);
287 struct MPT2SAS_ADAPTER *ioc;
288
289 if (ret)
290 return ret;
291
292 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
ba33fadf 293 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
635374e7
EM		 294 ioc->logging_level = logging_level;
295 return 0;
296}
d5d135b3 297module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
635374e7
EM		 298 &logging_level, 0644);
299
300/**
301 * _scsih_srch_boot_sas_address - search based on sas_address
302 * @sas_address: sas address
303 * @boot_device: boot device object from bios page 2
304 *
305 * Returns 1 when there's a match, 0 means no match.
306 */
307static inline int
308_scsih_srch_boot_sas_address(u64 sas_address,
309 Mpi2BootDeviceSasWwid_t *boot_device)
310{
311 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
312}
313
314/**
315 * _scsih_srch_boot_device_name - search based on device name
316 * @device_name: device name specified in INDENTIFY fram
317 * @boot_device: boot device object from bios page 2
318 *
319 * Returns 1 when there's a match, 0 means no match.
320 */
321static inline int
322_scsih_srch_boot_device_name(u64 device_name,
323 Mpi2BootDeviceDeviceName_t *boot_device)
324{
325 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
326}
327
328/**
329 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
330 * @enclosure_logical_id: enclosure logical id
331 * @slot_number: slot number
332 * @boot_device: boot device object from bios page 2
333 *
334 * Returns 1 when there's a match, 0 means no match.
335 */
336static inline int
337_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
338 Mpi2BootDeviceEnclosureSlot_t *boot_device)
339{
340 return (enclosure_logical_id == le64_to_cpu(boot_device->
341 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
342 SlotNumber)) ? 1 : 0;
343}
344
345/**
346 * _scsih_is_boot_device - search for matching boot device.
347 * @sas_address: sas address
348 * @device_name: device name specified in INDENTIFY fram
349 * @enclosure_logical_id: enclosure logical id
350 * @slot_number: slot number
351 * @form: specifies boot device form
352 * @boot_device: boot device object from bios page 2
353 *
354 * Returns 1 when there's a match, 0 means no match.
355 */
356static int
357_scsih_is_boot_device(u64 sas_address, u64 device_name,
358 u64 enclosure_logical_id, u16 slot, u8 form,
359 Mpi2BiosPage2BootDevice_t *boot_device)
360{
361 int rc = 0;
362
363 switch (form) {
364 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
365 if (!sas_address)
366 break;
367 rc = _scsih_srch_boot_sas_address(
368 sas_address, &boot_device->SasWwid);
369 break;
370 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
371 if (!enclosure_logical_id)
372 break;
373 rc = _scsih_srch_boot_encl_slot(
374 enclosure_logical_id,
375 slot, &boot_device->EnclosureSlot);
376 break;
377 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
378 if (!device_name)
379 break;
380 rc = _scsih_srch_boot_device_name(
381 device_name, &boot_device->DeviceName);
382 break;
383 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
384 break;
385 }
386
387 return rc;
388}
389
c5e039be
KD		 390/**
391 * _scsih_get_sas_address - set the sas_address for given device handle
392 * @handle: device handle
393 * @sas_address: sas address
394 *
395 * Returns 0 success, non-zero when failure
396 */
397static int
398_scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
399 u64 *sas_address)
400{
401 Mpi2SasDevicePage0_t sas_device_pg0;
402 Mpi2ConfigReply_t mpi_reply;
403 u32 ioc_status;
24f09b59 404 *sas_address = 0;
c5e039be
KD		 405
406 if (handle <= ioc->sas_hba.num_phys) {
407 *sas_address = ioc->sas_hba.sas_address;
408 return 0;
24f09b59 409 }
c5e039be
KD		 410
411 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
412 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
24f09b59 413 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
414 __FILE__, __LINE__, __func__);
c5e039be
KD		 415 return -ENXIO;
416 }
417
24f09b59 418 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
419 if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
420 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
421 return 0;
c5e039be
KD		 422 }
423
24f09b59 424 /* we hit this becuase the given parent handle doesn't exist */
425 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
426 return -ENXIO;
427 /* else error case */
428 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x), "
429 "failure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
430 __FILE__, __LINE__, __func__);
431 return -EIO;
c5e039be
KD		 432}
433
635374e7
EM		 434/**
435 * _scsih_determine_boot_device - determine boot device.
436 * @ioc: per adapter object
437 * @device: either sas_device or raid_device object
438 * @is_raid: [flag] 1 = raid object, 0 = sas object
439 *
440 * Determines whether this device should be first reported device to
25985edc 441 * to scsi-ml or sas transport, this purpose is for persistent boot device.
635374e7
EM		 442 * There are primary, alternate, and current entries in bios page 2. The order
443 * priority is primary, alternate, then current. This routine saves
444 * the corresponding device object and is_raid flag in the ioc object.
445 * The saved data to be used later in _scsih_probe_boot_devices().
446 */
447static void
448_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
449 void *device, u8 is_raid)
450{
451 struct _sas_device *sas_device;
452 struct _raid_device *raid_device;
453 u64 sas_address;
454 u64 device_name;
455 u64 enclosure_logical_id;
456 u16 slot;
457
458 /* only process this function when driver loads */
921cd802 459 if (!ioc->is_driver_loading)
460 return;
461
462 /* no Bios, return immediately */
463 if (!ioc->bios_pg3.BiosVersion)
635374e7
EM		 464 return;
465
466 if (!is_raid) {
467 sas_device = device;
468 sas_address = sas_device->sas_address;
469 device_name = sas_device->device_name;
470 enclosure_logical_id = sas_device->enclosure_logical_id;
471 slot = sas_device->slot;
472 } else {
473 raid_device = device;
474 sas_address = raid_device->wwid;
475 device_name = 0;
476 enclosure_logical_id = 0;
477 slot = 0;
478 }
479
480 if (!ioc->req_boot_device.device) {
481 if (_scsih_is_boot_device(sas_address, device_name,
482 enclosure_logical_id, slot,
483 (ioc->bios_pg2.ReqBootDeviceForm &
484 MPI2_BIOSPAGE2_FORM_MASK),
485 &ioc->bios_pg2.RequestedBootDevice)) {
eabb08ad 486 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 487 "%s: req_boot_device(0x%016llx)\n",
488 ioc->name, __func__,
489 (unsigned long long)sas_address));
490 ioc->req_boot_device.device = device;
491 ioc->req_boot_device.is_raid = is_raid;
492 }
493 }
494
495 if (!ioc->req_alt_boot_device.device) {
496 if (_scsih_is_boot_device(sas_address, device_name,
497 enclosure_logical_id, slot,
498 (ioc->bios_pg2.ReqAltBootDeviceForm &
499 MPI2_BIOSPAGE2_FORM_MASK),
500 &ioc->bios_pg2.RequestedAltBootDevice)) {
eabb08ad 501 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 502 "%s: req_alt_boot_device(0x%016llx)\n",
503 ioc->name, __func__,
504 (unsigned long long)sas_address));
505 ioc->req_alt_boot_device.device = device;
506 ioc->req_alt_boot_device.is_raid = is_raid;
507 }
508 }
509
510 if (!ioc->current_boot_device.device) {
511 if (_scsih_is_boot_device(sas_address, device_name,
512 enclosure_logical_id, slot,
513 (ioc->bios_pg2.CurrentBootDeviceForm &
514 MPI2_BIOSPAGE2_FORM_MASK),
515 &ioc->bios_pg2.CurrentBootDevice)) {
eabb08ad 516 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 517 "%s: current_boot_device(0x%016llx)\n",
518 ioc->name, __func__,
519 (unsigned long long)sas_address));
520 ioc->current_boot_device.device = device;
521 ioc->current_boot_device.is_raid = is_raid;
522 }
523 }
524}
525
526/**
527 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
528 * @ioc: per adapter object
529 * @sas_address: sas address
530 * Context: Calling function should acquire ioc->sas_device_lock
531 *
532 * This searches for sas_device based on sas_address, then return sas_device
533 * object.
534 */
535struct _sas_device *
536mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
537 u64 sas_address)
538{
cd9843f8 539 struct _sas_device *sas_device;
635374e7 540
cd9843f8
KD		 541 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
542 if (sas_device->sas_address == sas_address)
543 return sas_device;
544
545 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
546 if (sas_device->sas_address == sas_address)
547 return sas_device;
548
549 return NULL;
635374e7
EM		 550}
551
552/**
553 * _scsih_sas_device_find_by_handle - sas device search
554 * @ioc: per adapter object
555 * @handle: sas device handle (assigned by firmware)
556 * Context: Calling function should acquire ioc->sas_device_lock
557 *
558 * This searches for sas_device based on sas_address, then return sas_device
559 * object.
560 */
561static struct _sas_device *
562_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
563{
cd9843f8
KD		 564 struct _sas_device *sas_device;
565
566 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
567 if (sas_device->handle == handle)
568 return sas_device;
569
570 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
571 if (sas_device->handle == handle)
572 return sas_device;
635374e7 573
cd9843f8 574 return NULL;
635374e7
EM		 575}
576
577/**
578 * _scsih_sas_device_remove - remove sas_device from list.
579 * @ioc: per adapter object
580 * @sas_device: the sas_device object
581 * Context: This function will acquire ioc->sas_device_lock.
582 *
583 * Removing object and freeing associated memory from the ioc->sas_device_list.
584 */
585static void
586_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
587 struct _sas_device *sas_device)
588{
589 unsigned long flags;
590
980ead31
KD		 591 if (!sas_device)
592 return;
593
635374e7 594 spin_lock_irqsave(&ioc->sas_device_lock, flags);
09da0b32 595 list_del(&sas_device->list);
596 kfree(sas_device);
635374e7
EM		 597 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
598}
599
09da0b32 600
635374e7
EM		 601/**
602 * _scsih_sas_device_add - insert sas_device to the list.
603 * @ioc: per adapter object
604 * @sas_device: the sas_device object
605 * Context: This function will acquire ioc->sas_device_lock.
606 *
607 * Adding new object to the ioc->sas_device_list.
608 */
609static void
610_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
611 struct _sas_device *sas_device)
612{
613 unsigned long flags;
635374e7 614
eabb08ad 615 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
635374e7
EM		 616 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
617 sas_device->handle, (unsigned long long)sas_device->sas_address));
618
619 spin_lock_irqsave(&ioc->sas_device_lock, flags);
620 list_add_tail(&sas_device->list, &ioc->sas_device_list);
621 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
622
c5e039be 623 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
35116db9 624 sas_device->sas_address_parent)) {
635374e7 625 _scsih_sas_device_remove(ioc, sas_device);
23edb6e7 626 } else if (!sas_device->starget) {
627 /* When asyn scanning is enabled, its not possible to remove
628 * devices while scanning is turned on due to an oops in
629 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
630 */
631 if (!ioc->is_driver_loading)
632 mpt2sas_transport_port_remove(ioc,
633 sas_device->sas_address,
634 sas_device->sas_address_parent);
635 _scsih_sas_device_remove(ioc, sas_device);
636 }
635374e7
EM		 637}
638
639/**
640 * _scsih_sas_device_init_add - insert sas_device to the list.
641 * @ioc: per adapter object
642 * @sas_device: the sas_device object
643 * Context: This function will acquire ioc->sas_device_lock.
644 *
645 * Adding new object at driver load time to the ioc->sas_device_init_list.
646 */
647static void
648_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
649 struct _sas_device *sas_device)
650{
651 unsigned long flags;
652
eabb08ad 653 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
635374e7
EM		 654 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
655 sas_device->handle, (unsigned long long)sas_device->sas_address));
656
657 spin_lock_irqsave(&ioc->sas_device_lock, flags);
658 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
635374e7 659 _scsih_determine_boot_device(ioc, sas_device, 0);
09da0b32 660 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
635374e7
EM		 661}
662
635374e7
EM		 663/**
664 * _scsih_raid_device_find_by_id - raid device search
665 * @ioc: per adapter object
666 * @id: sas device target id
667 * @channel: sas device channel
668 * Context: Calling function should acquire ioc->raid_device_lock
669 *
670 * This searches for raid_device based on target id, then return raid_device
671 * object.
672 */
673static struct _raid_device *
674_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
675{
676 struct _raid_device *raid_device, *r;
677
678 r = NULL;
679 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
680 if (raid_device->id == id && raid_device->channel == channel) {
681 r = raid_device;
682 goto out;
683 }
684 }
685
686 out:
687 return r;
688}
689
690/**
691 * _scsih_raid_device_find_by_handle - raid device search
692 * @ioc: per adapter object
693 * @handle: sas device handle (assigned by firmware)
694 * Context: Calling function should acquire ioc->raid_device_lock
695 *
696 * This searches for raid_device based on handle, then return raid_device
697 * object.
698 */
699static struct _raid_device *
700_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
701{
702 struct _raid_device *raid_device, *r;
703
704 r = NULL;
705 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
706 if (raid_device->handle != handle)
707 continue;
708 r = raid_device;
709 goto out;
710 }
711
712 out:
713 return r;
714}
715
716/**
717 * _scsih_raid_device_find_by_wwid - raid device search
718 * @ioc: per adapter object
719 * @handle: sas device handle (assigned by firmware)
720 * Context: Calling function should acquire ioc->raid_device_lock
721 *
722 * This searches for raid_device based on wwid, then return raid_device
723 * object.
724 */
725static struct _raid_device *
726_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
727{
728 struct _raid_device *raid_device, *r;
729
730 r = NULL;
731 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
732 if (raid_device->wwid != wwid)
733 continue;
734 r = raid_device;
735 goto out;
736 }
737
738 out:
739 return r;
740}
741
742/**
743 * _scsih_raid_device_add - add raid_device object
744 * @ioc: per adapter object
745 * @raid_device: raid_device object
746 *
747 * This is added to the raid_device_list link list.
748 */
749static void
750_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
751 struct _raid_device *raid_device)
752{
753 unsigned long flags;
754
eabb08ad 755 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
635374e7
EM		 756 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
757 raid_device->handle, (unsigned long long)raid_device->wwid));
758
759 spin_lock_irqsave(&ioc->raid_device_lock, flags);
760 list_add_tail(&raid_device->list, &ioc->raid_device_list);
761 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
762}
763
764/**
765 * _scsih_raid_device_remove - delete raid_device object
766 * @ioc: per adapter object
767 * @raid_device: raid_device object
768 *
635374e7
EM		 769 */
770static void
771_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
772 struct _raid_device *raid_device)
773{
774 unsigned long flags;
775
776 spin_lock_irqsave(&ioc->raid_device_lock, flags);
777 list_del(&raid_device->list);
635374e7
EM		 778 kfree(raid_device);
779 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
780}
781
c5e039be
KD		 782/**
783 * mpt2sas_scsih_expander_find_by_handle - expander device search
784 * @ioc: per adapter object
785 * @handle: expander handle (assigned by firmware)
786 * Context: Calling function should acquire ioc->sas_device_lock
787 *
788 * This searches for expander device based on handle, then returns the
789 * sas_node object.
790 */
791struct _sas_node *
792mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
793{
794 struct _sas_node *sas_expander, *r;
795
796 r = NULL;
797 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
798 if (sas_expander->handle != handle)
799 continue;
800 r = sas_expander;
801 goto out;
802 }
803 out:
804 return r;
805}
806
635374e7
EM		 807/**
808 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
809 * @ioc: per adapter object
810 * @sas_address: sas address
811 * Context: Calling function should acquire ioc->sas_node_lock.
812 *
813 * This searches for expander device based on sas_address, then returns the
814 * sas_node object.
815 */
816struct _sas_node *
817mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
818 u64 sas_address)
819{
820 struct _sas_node *sas_expander, *r;
821
822 r = NULL;
823 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
824 if (sas_expander->sas_address != sas_address)
825 continue;
826 r = sas_expander;
827 goto out;
828 }
829 out:
830 return r;
831}
832
833/**
834 * _scsih_expander_node_add - insert expander device to the list.
835 * @ioc: per adapter object
836 * @sas_expander: the sas_device object
837 * Context: This function will acquire ioc->sas_node_lock.
838 *
839 * Adding new object to the ioc->sas_expander_list.
840 *
841 * Return nothing.
842 */
843static void
844_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
845 struct _sas_node *sas_expander)
846{
847 unsigned long flags;
848
849 spin_lock_irqsave(&ioc->sas_node_lock, flags);
850 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
851 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
852}
853
854/**
855 * _scsih_is_end_device - determines if device is an end device
856 * @device_info: bitfield providing information about the device.
857 * Context: none
858 *
859 * Returns 1 if end device.
860 */
861static int
862_scsih_is_end_device(u32 device_info)
863{
864 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
865 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
866 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
867 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
868 return 1;
869 else
870 return 0;
871}
872
873/**
ec07a053 874 * _scsih_scsi_lookup_get - returns scmd entry
635374e7
EM		 875 * @ioc: per adapter object
876 * @smid: system request message index
635374e7
EM		 877 *
878 * Returns the smid stored scmd pointer.
879 */
880static struct scsi_cmnd *
881_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
882{
595bb0bd 883 return ioc->scsi_lookup[smid - 1].scmd;
635374e7
EM		 884}
885
ec07a053
KD		 886/**
887 * _scsih_scsi_lookup_get_clear - returns scmd entry
888 * @ioc: per adapter object
889 * @smid: system request message index
890 *
891 * Returns the smid stored scmd pointer.
892 * Then will derefrence the stored scmd pointer.
893 */
894static inline struct scsi_cmnd *
895_scsih_scsi_lookup_get_clear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
896{
897 unsigned long flags;
898 struct scsi_cmnd *scmd;
899
900 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
901 scmd = ioc->scsi_lookup[smid - 1].scmd;
902 ioc->scsi_lookup[smid - 1].scmd = NULL;
903 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
904
905 return scmd;
906}
907
635374e7
EM		 908/**
909 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
910 * @ioc: per adapter object
911 * @smid: system request message index
912 * @scmd: pointer to scsi command object
913 * Context: This function will acquire ioc->scsi_lookup_lock.
914 *
915 * This will search for a scmd pointer in the scsi_lookup array,
916 * returning the revelent smid. A returned value of zero means invalid.
917 */
918static u16
919_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
920 *scmd)
921{
922 u16 smid;
923 unsigned long flags;
924 int i;
925
926 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
927 smid = 0;
595bb0bd 928 for (i = 0; i < ioc->scsiio_depth; i++) {
635374e7 929 if (ioc->scsi_lookup[i].scmd == scmd) {
595bb0bd 930 smid = ioc->scsi_lookup[i].smid;
635374e7
EM		 931 goto out;
932 }
933 }
934 out:
935 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
936 return smid;
937}
938
939/**
940 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
941 * @ioc: per adapter object
942 * @id: target id
943 * @channel: channel
944 * Context: This function will acquire ioc->scsi_lookup_lock.
945 *
946 * This will search for a matching channel:id in the scsi_lookup array,
947 * returning 1 if found.
948 */
949static u8
950_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
951 int channel)
952{
953 u8 found;
954 unsigned long flags;
955 int i;
956
957 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
958 found = 0;
595bb0bd 959 for (i = 0 ; i < ioc->scsiio_depth; i++) {
635374e7
EM		 960 if (ioc->scsi_lookup[i].scmd &&
961 (ioc->scsi_lookup[i].scmd->device->id == id &&
962 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
963 found = 1;
964 goto out;
965 }
966 }
967 out:
968 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
969 return found;
970}
971
993e0da7
EM		 972/**
973 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
974 * @ioc: per adapter object
975 * @id: target id
976 * @lun: lun number
977 * @channel: channel
978 * Context: This function will acquire ioc->scsi_lookup_lock.
979 *
980 * This will search for a matching channel:id:lun in the scsi_lookup array,
981 * returning 1 if found.
982 */
983static u8
984_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
985 unsigned int lun, int channel)
986{
987 u8 found;
988 unsigned long flags;
989 int i;
990
991 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
992 found = 0;
595bb0bd 993 for (i = 0 ; i < ioc->scsiio_depth; i++) {
993e0da7
EM		 994 if (ioc->scsi_lookup[i].scmd &&
995 (ioc->scsi_lookup[i].scmd->device->id == id &&
996 ioc->scsi_lookup[i].scmd->device->channel == channel &&
997 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
998 found = 1;
999 goto out;
1000 }
1001 }
1002 out:
1003 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1004 return found;
1005}
1006
635374e7 1007/**
35f805b5 1008 * _scsih_get_chain_buffer_tracker - obtain chain tracker
635374e7 1009 * @ioc: per adapter object
35f805b5 1010 * @smid: smid associated to an IO request
635374e7 1011 *
35f805b5 1012 * Returns chain tracker(from ioc->free_chain_list)
635374e7 1013 */
35f805b5
KD		 1014static struct chain_tracker *
1015_scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
635374e7 1016{
35f805b5
KD		 1017 struct chain_tracker *chain_req;
1018 unsigned long flags;
635374e7 1019
35f805b5
KD		 1020 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
1021 if (list_empty(&ioc->free_chain_list)) {
1022 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
aff132d9 1023 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT "chain buffers not "
1024 "available\n", ioc->name));
35f805b5
KD		 1025 return NULL;
1026 }
1027 chain_req = list_entry(ioc->free_chain_list.next,
1028 struct chain_tracker, tracker_list);
1029 list_del_init(&chain_req->tracker_list);
1030 list_add_tail(&chain_req->tracker_list,
1031 &ioc->scsi_lookup[smid - 1].chain_list);
1032 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
1033 return chain_req;
635374e7
EM		 1034}
1035
1036/**
1037 * _scsih_build_scatter_gather - main sg creation routine
1038 * @ioc: per adapter object
1039 * @scmd: scsi command
1040 * @smid: system request message index
1041 * Context: none.
1042 *
1043 * The main routine that builds scatter gather table from a given
1044 * scsi request sent via the .queuecommand main handler.
1045 *
1046 * Returns 0 success, anything else error
1047 */
1048static int
1049_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
1050 struct scsi_cmnd *scmd, u16 smid)
1051{
1052 Mpi2SCSIIORequest_t *mpi_request;
1053 dma_addr_t chain_dma;
1054 struct scatterlist *sg_scmd;
1055 void *sg_local, *chain;
1056 u32 chain_offset;
1057 u32 chain_length;
1058 u32 chain_flags;
bb789d01 1059 int sges_left;
635374e7
EM		 1060 u32 sges_in_segment;
1061 u32 sgl_flags;
1062 u32 sgl_flags_last_element;
1063 u32 sgl_flags_end_buffer;
35f805b5 1064 struct chain_tracker *chain_req;
635374e7
EM		 1065
1066 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1067
1068 /* init scatter gather flags */
1069 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
1070 if (scmd->sc_data_direction == DMA_TO_DEVICE)
1071 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
1072 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
1073 << MPI2_SGE_FLAGS_SHIFT;
1074 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
1075 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
1076 << MPI2_SGE_FLAGS_SHIFT;
1077 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1078
1079 sg_scmd = scsi_sglist(scmd);
1080 sges_left = scsi_dma_map(scmd);
bb789d01 1081 if (sges_left < 0) {
635374e7
EM		 1082 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
1083 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
1084 return -ENOMEM;
1085 }
1086
1087 sg_local = &mpi_request->SGL;
1088 sges_in_segment = ioc->max_sges_in_main_message;
1089 if (sges_left <= sges_in_segment)
1090 goto fill_in_last_segment;
1091
1092 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1093 (sges_in_segment * ioc->sge_size))/4;
1094
1095 /* fill in main message segment when there is a chain following */
1096 while (sges_in_segment) {
1097 if (sges_in_segment == 1)
1098 ioc->base_add_sg_single(sg_local,
1099 sgl_flags_last_element | sg_dma_len(sg_scmd),
1100 sg_dma_address(sg_scmd));
1101 else
1102 ioc->base_add_sg_single(sg_local, sgl_flags |
1103 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1104 sg_scmd = sg_next(sg_scmd);
1105 sg_local += ioc->sge_size;
1106 sges_left--;
1107 sges_in_segment--;
1108 }
1109
1110 /* initializing the chain flags and pointers */
1111 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
35f805b5
KD		 1112 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1113 if (!chain_req)
1114 return -1;
1115 chain = chain_req->chain_buffer;
1116 chain_dma = chain_req->chain_buffer_dma;
635374e7
EM		 1117 do {
1118 sges_in_segment = (sges_left <=
1119 ioc->max_sges_in_chain_message) ? sges_left :
1120 ioc->max_sges_in_chain_message;
1121 chain_offset = (sges_left == sges_in_segment) ?
1122 0 : (sges_in_segment * ioc->sge_size)/4;
1123 chain_length = sges_in_segment * ioc->sge_size;
1124 if (chain_offset) {
1125 chain_offset = chain_offset <<
1126 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1127 chain_length += ioc->sge_size;
1128 }
1129 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1130 chain_length, chain_dma);
1131 sg_local = chain;
1132 if (!chain_offset)
1133 goto fill_in_last_segment;
1134
1135 /* fill in chain segments */
1136 while (sges_in_segment) {
1137 if (sges_in_segment == 1)
1138 ioc->base_add_sg_single(sg_local,
1139 sgl_flags_last_element |
1140 sg_dma_len(sg_scmd),
1141 sg_dma_address(sg_scmd));
1142 else
1143 ioc->base_add_sg_single(sg_local, sgl_flags |
1144 sg_dma_len(sg_scmd),
1145 sg_dma_address(sg_scmd));
1146 sg_scmd = sg_next(sg_scmd);
1147 sg_local += ioc->sge_size;
1148 sges_left--;
1149 sges_in_segment--;
1150 }
1151
35f805b5
KD		 1152 chain_req = _scsih_get_chain_buffer_tracker(ioc, smid);
1153 if (!chain_req)
1154 return -1;
1155 chain = chain_req->chain_buffer;
1156 chain_dma = chain_req->chain_buffer_dma;
635374e7
EM		 1157 } while (1);
1158
1159
1160 fill_in_last_segment:
1161
1162 /* fill the last segment */
1163 while (sges_left) {
1164 if (sges_left == 1)
1165 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1166 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1167 else
1168 ioc->base_add_sg_single(sg_local, sgl_flags |
1169 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1170 sg_scmd = sg_next(sg_scmd);
1171 sg_local += ioc->sge_size;
1172 sges_left--;
1173 }
1174
1175 return 0;
1176}
1177
1178/**
a93c6b45 1179 * _scsih_adjust_queue_depth - setting device queue depth
635374e7
EM		 1180 * @sdev: scsi device struct
1181 * @qdepth: requested queue depth
1182 *
a93c6b45
KD		 1183 *
1184 * Returns nothing
635374e7 1185 */
a93c6b45
KD		 1186static void
1187_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
635374e7
EM		 1188{
1189 struct Scsi_Host *shost = sdev->host;
1190 int max_depth;
e0077d60
KD		 1191 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1192 struct MPT2SAS_DEVICE *sas_device_priv_data;
1193 struct MPT2SAS_TARGET *sas_target_priv_data;
1194 struct _sas_device *sas_device;
1195 unsigned long flags;
635374e7
EM		 1196
1197 max_depth = shost->can_queue;
e0077d60
KD		 1198
1199 /* limit max device queue for SATA to 32 */
1200 sas_device_priv_data = sdev->hostdata;
1201 if (!sas_device_priv_data)
1202 goto not_sata;
1203 sas_target_priv_data = sas_device_priv_data->sas_target;
1204 if (!sas_target_priv_data)
1205 goto not_sata;
1206 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1207 goto not_sata;
1208 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1209 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1210 sas_device_priv_data->sas_target->sas_address);
e0077d60
KD		 1211 if (sas_device && sas_device->device_info &
1212 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1213 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
09da0b32 1214 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
e0077d60
KD		 1215
1216 not_sata:
1217
635374e7
EM		 1218 if (!sdev->tagged_supported)
1219 max_depth = 1;
1220 if (qdepth > max_depth)
1221 qdepth = max_depth;
a93c6b45
KD		 1222 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1223}
1224
1225/**
1226 * _scsih_change_queue_depth - setting device queue depth
1227 * @sdev: scsi device struct
1228 * @qdepth: requested queue depth
1229 * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
1230 * (see include/scsi/scsi_host.h for definition)
1231 *
1232 * Returns queue depth.
1233 */
1234static int
1235_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1236{
1237 if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
1238 _scsih_adjust_queue_depth(sdev, qdepth);
1239 else if (reason == SCSI_QDEPTH_QFULL)
1240 scsi_track_queue_full(sdev, qdepth);
1241 else
1242 return -EOPNOTSUPP;
635374e7
EM		 1243
1244 if (sdev->inquiry_len > 7)
1245 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1246 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1247 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1248 sdev->ordered_tags, sdev->scsi_level,
1249 (sdev->inquiry[7] & 2) >> 1);
1250
1251 return sdev->queue_depth;
1252}
1253
1254/**
595bb0bd 1255 * _scsih_change_queue_type - changing device queue tag type
635374e7
EM		 1256 * @sdev: scsi device struct
1257 * @tag_type: requested tag type
1258 *
1259 * Returns queue tag type.
1260 */
1261static int
d5d135b3 1262_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
635374e7
EM		 1263{
1264 if (sdev->tagged_supported) {
1265 scsi_set_tag_type(sdev, tag_type);
1266 if (tag_type)
1267 scsi_activate_tcq(sdev, sdev->queue_depth);
1268 else
1269 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1270 } else
1271 tag_type = 0;
1272
1273 return tag_type;
1274}
1275
1276/**
d5d135b3 1277 * _scsih_target_alloc - target add routine
635374e7
EM		 1278 * @starget: scsi target struct
1279 *
1280 * Returns 0 if ok. Any other return is assumed to be an error and
1281 * the device is ignored.
1282 */
1283static int
d5d135b3 1284_scsih_target_alloc(struct scsi_target *starget)
635374e7
EM		 1285{
1286 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1287 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1288 struct MPT2SAS_TARGET *sas_target_priv_data;
1289 struct _sas_device *sas_device;
1290 struct _raid_device *raid_device;
1291 unsigned long flags;
1292 struct sas_rphy *rphy;
1293
1294 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1295 if (!sas_target_priv_data)
1296 return -ENOMEM;
1297
1298 starget->hostdata = sas_target_priv_data;
1299 sas_target_priv_data->starget = starget;
1300 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1301
1302 /* RAID volumes */
1303 if (starget->channel == RAID_CHANNEL) {
1304 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1305 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1306 starget->channel);
1307 if (raid_device) {
1308 sas_target_priv_data->handle = raid_device->handle;
1309 sas_target_priv_data->sas_address = raid_device->wwid;
1310 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
09da0b32 1311 if (ioc->is_warpdrive)
1312 sas_target_priv_data->raid_device = raid_device;
635374e7
EM		 1313 raid_device->starget = starget;
1314 }
1315 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1316 return 0;
1317 }
1318
1319 /* sas/sata devices */
1320 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1321 rphy = dev_to_rphy(starget->dev.parent);
1322 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1323 rphy->identify.sas_address);
1324
1325 if (sas_device) {
1326 sas_target_priv_data->handle = sas_device->handle;
1327 sas_target_priv_data->sas_address = sas_device->sas_address;
1328 sas_device->starget = starget;
1329 sas_device->id = starget->id;
1330 sas_device->channel = starget->channel;
f3eedd69 1331 if (test_bit(sas_device->handle, ioc->pd_handles))
635374e7
EM		 1332 sas_target_priv_data->flags |=
1333 MPT_TARGET_FLAGS_RAID_COMPONENT;
1334 }
1335 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1336
1337 return 0;
1338}
1339
1340/**
d5d135b3 1341 * _scsih_target_destroy - target destroy routine
635374e7
EM		 1342 * @starget: scsi target struct
1343 *
1344 * Returns nothing.
1345 */
1346static void
d5d135b3 1347_scsih_target_destroy(struct scsi_target *starget)
635374e7
EM		 1348{
1349 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1350 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1351 struct MPT2SAS_TARGET *sas_target_priv_data;
1352 struct _sas_device *sas_device;
1353 struct _raid_device *raid_device;
1354 unsigned long flags;
1355 struct sas_rphy *rphy;
1356
1357 sas_target_priv_data = starget->hostdata;
1358 if (!sas_target_priv_data)
1359 return;
1360
1361 if (starget->channel == RAID_CHANNEL) {
1362 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1363 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1364 starget->channel);
1365 if (raid_device) {
1366 raid_device->starget = NULL;
1367 raid_device->sdev = NULL;
1368 }
1369 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1370 goto out;
1371 }
1372
1373 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1374 rphy = dev_to_rphy(starget->dev.parent);
1375 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1376 rphy->identify.sas_address);
8901cbb4
EM		 1377 if (sas_device && (sas_device->starget == starget) &&
1378 (sas_device->id == starget->id) &&
1379 (sas_device->channel == starget->channel))
635374e7
EM		 1380 sas_device->starget = NULL;
1381
1382 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1383
1384 out:
1385 kfree(sas_target_priv_data);
1386 starget->hostdata = NULL;
1387}
1388
1389/**
d5d135b3 1390 * _scsih_slave_alloc - device add routine
635374e7
EM		 1391 * @sdev: scsi device struct
1392 *
1393 * Returns 0 if ok. Any other return is assumed to be an error and
1394 * the device is ignored.
1395 */
1396static int
d5d135b3 1397_scsih_slave_alloc(struct scsi_device *sdev)
635374e7
EM		 1398{
1399 struct Scsi_Host *shost;
1400 struct MPT2SAS_ADAPTER *ioc;
1401 struct MPT2SAS_TARGET *sas_target_priv_data;
1402 struct MPT2SAS_DEVICE *sas_device_priv_data;
1403 struct scsi_target *starget;
1404 struct _raid_device *raid_device;
635374e7
EM		 1405 unsigned long flags;
1406
1407 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1408 if (!sas_device_priv_data)
1409 return -ENOMEM;
1410
1411 sas_device_priv_data->lun = sdev->lun;
1412 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1413
1414 starget = scsi_target(sdev);
1415 sas_target_priv_data = starget->hostdata;
1416 sas_target_priv_data->num_luns++;
1417 sas_device_priv_data->sas_target = sas_target_priv_data;
1418 sdev->hostdata = sas_device_priv_data;
1419 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1420 sdev->no_uld_attach = 1;
1421
1422 shost = dev_to_shost(&starget->dev);
1423 ioc = shost_priv(shost);
1424 if (starget->channel == RAID_CHANNEL) {
1425 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1426 raid_device = _scsih_raid_device_find_by_id(ioc,
1427 starget->id, starget->channel);
1428 if (raid_device)
1429 raid_device->sdev = sdev; /* raid is single lun */
1430 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
635374e7
EM		 1431 }
1432
635374e7
EM		 1433 return 0;
1434}
1435
1436/**
d5d135b3 1437 * _scsih_slave_destroy - device destroy routine
635374e7
EM		 1438 * @sdev: scsi device struct
1439 *
1440 * Returns nothing.
1441 */
1442static void
d5d135b3 1443_scsih_slave_destroy(struct scsi_device *sdev)
635374e7
EM		 1444{
1445 struct MPT2SAS_TARGET *sas_target_priv_data;
1446 struct scsi_target *starget;
35116db9 1447 struct Scsi_Host *shost;
1448 struct MPT2SAS_ADAPTER *ioc;
1449 struct _sas_device *sas_device;
1450 unsigned long flags;
635374e7
EM		 1451
1452 if (!sdev->hostdata)
1453 return;
1454
1455 starget = scsi_target(sdev);
1456 sas_target_priv_data = starget->hostdata;
1457 sas_target_priv_data->num_luns--;
35116db9 1458
1459 shost = dev_to_shost(&starget->dev);
1460 ioc = shost_priv(shost);
1461
1462 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1463 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1464 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1465 sas_target_priv_data->sas_address);
23edb6e7 1466 if (sas_device && !sas_target_priv_data->num_luns)
35116db9 1467 sas_device->starget = NULL;
1468 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1469 }
1470
635374e7
EM		 1471 kfree(sdev->hostdata);
1472 sdev->hostdata = NULL;
1473}
1474
1475/**
d5d135b3 1476 * _scsih_display_sata_capabilities - sata capabilities
635374e7 1477 * @ioc: per adapter object
09da0b32 1478 * @handle: device handle
635374e7
EM		 1479 * @sdev: scsi device struct
1480 */
1481static void
d5d135b3 1482_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
09da0b32 1483 u16 handle, struct scsi_device *sdev)
635374e7
EM		 1484{
1485 Mpi2ConfigReply_t mpi_reply;
1486 Mpi2SasDevicePage0_t sas_device_pg0;
1487 u32 ioc_status;
1488 u16 flags;
1489 u32 device_info;
1490
1491 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
09da0b32 1492 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
635374e7
EM		 1493 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1494 ioc->name, __FILE__, __LINE__, __func__);
1495 return;
1496 }
1497
1498 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1499 MPI2_IOCSTATUS_MASK;
1500 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1501 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1502 ioc->name, __FILE__, __LINE__, __func__);
1503 return;
1504 }
1505
1506 flags = le16_to_cpu(sas_device_pg0.Flags);
e94f6747 1507 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
635374e7
EM		 1508
1509 sdev_printk(KERN_INFO, sdev,
1510 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1511 "sw_preserve(%s)\n",
1512 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1513 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1514 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1515 "n",
1516 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1517 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1518 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1519}
1520
f7c95ef0
KD		 1521/**
1522 * _scsih_is_raid - return boolean indicating device is raid volume
1523 * @dev the device struct object
1524 */
1525static int
1526_scsih_is_raid(struct device *dev)
1527{
1528 struct scsi_device *sdev = to_scsi_device(dev);
0bdccdb0 1529 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
f7c95ef0 1530
0bdccdb0
KD		 1531 if (ioc->is_warpdrive)
1532 return 0;
f7c95ef0
KD		 1533 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1534}
1535
1536/**
1537 * _scsih_get_resync - get raid volume resync percent complete
1538 * @dev the device struct object
1539 */
1540static void
1541_scsih_get_resync(struct device *dev)
1542{
1543 struct scsi_device *sdev = to_scsi_device(dev);
1544 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1545 static struct _raid_device *raid_device;
1546 unsigned long flags;
1547 Mpi2RaidVolPage0_t vol_pg0;
1548 Mpi2ConfigReply_t mpi_reply;
1549 u32 volume_status_flags;
09da0b32 1550 u8 percent_complete;
1551 u16 handle;
1552
1553 percent_complete = 0;
1554 handle = 0;
1555 if (ioc->is_warpdrive)
1556 goto out;
f7c95ef0
KD		 1557
1558 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1559 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1560 sdev->channel);
09da0b32 1561 if (raid_device) {
1562 handle = raid_device->handle;
1563 percent_complete = raid_device->percent_complete;
1564 }
f7c95ef0
KD		 1565 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1566
09da0b32 1567 if (!handle)
f7c95ef0
KD		 1568 goto out;
1569
1570 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
09da0b32 1571 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
f7c95ef0
KD		 1572 sizeof(Mpi2RaidVolPage0_t))) {
1573 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1574 ioc->name, __FILE__, __LINE__, __func__);
09da0b32 1575 percent_complete = 0;
f7c95ef0
KD		 1576 goto out;
1577 }
1578
1579 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
09da0b32 1580 if (!(volume_status_flags &
1581 MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
1582 percent_complete = 0;
1583
f7c95ef0
KD		 1584 out:
1585 raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
1586}
1587
1588/**
1589 * _scsih_get_state - get raid volume level
1590 * @dev the device struct object
1591 */
1592static void
1593_scsih_get_state(struct device *dev)
1594{
1595 struct scsi_device *sdev = to_scsi_device(dev);
1596 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1597 static struct _raid_device *raid_device;
1598 unsigned long flags;
1599 Mpi2RaidVolPage0_t vol_pg0;
1600 Mpi2ConfigReply_t mpi_reply;
1601 u32 volstate;
1602 enum raid_state state = RAID_STATE_UNKNOWN;
09da0b32 1603 u16 handle = 0;
f7c95ef0
KD		 1604
1605 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1606 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1607 sdev->channel);
09da0b32 1608 if (raid_device)
1609 handle = raid_device->handle;
f7c95ef0
KD		 1610 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1611
1612 if (!raid_device)
1613 goto out;
1614
1615 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
09da0b32 1616 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
f7c95ef0
KD		 1617 sizeof(Mpi2RaidVolPage0_t))) {
1618 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1619 ioc->name, __FILE__, __LINE__, __func__);
1620 goto out;
1621 }
1622
1623 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1624 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1625 state = RAID_STATE_RESYNCING;
1626 goto out;
1627 }
1628
1629 switch (vol_pg0.VolumeState) {
1630 case MPI2_RAID_VOL_STATE_OPTIMAL:
1631 case MPI2_RAID_VOL_STATE_ONLINE:
1632 state = RAID_STATE_ACTIVE;
1633 break;
1634 case MPI2_RAID_VOL_STATE_DEGRADED:
1635 state = RAID_STATE_DEGRADED;
1636 break;
1637 case MPI2_RAID_VOL_STATE_FAILED:
1638 case MPI2_RAID_VOL_STATE_MISSING:
1639 state = RAID_STATE_OFFLINE;
1640 break;
1641 }
1642 out:
1643 raid_set_state(mpt2sas_raid_template, dev, state);
1644}
1645
1646/**
1647 * _scsih_set_level - set raid level
1648 * @sdev: scsi device struct
09da0b32 1649 * @volume_type: volume type
f7c95ef0
KD		 1650 */
1651static void
09da0b32 1652_scsih_set_level(struct scsi_device *sdev, u8 volume_type)
f7c95ef0
KD		 1653{
1654 enum raid_level level = RAID_LEVEL_UNKNOWN;
1655
09da0b32 1656 switch (volume_type) {
f7c95ef0
KD		 1657 case MPI2_RAID_VOL_TYPE_RAID0:
1658 level = RAID_LEVEL_0;
1659 break;
1660 case MPI2_RAID_VOL_TYPE_RAID10:
1661 level = RAID_LEVEL_10;
1662 break;
1663 case MPI2_RAID_VOL_TYPE_RAID1E:
1664 level = RAID_LEVEL_1E;
1665 break;
1666 case MPI2_RAID_VOL_TYPE_RAID1:
1667 level = RAID_LEVEL_1;
1668 break;
1669 }
1670
1671 raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
1672}
1673
635374e7
EM		 1674/**
1675 * _scsih_get_volume_capabilities - volume capabilities
1676 * @ioc: per adapter object
1677 * @sas_device: the raid_device object
6faace2a 1678 *
1679 * Returns 0 for success, else 1
635374e7 1680 */
6faace2a 1681static int
635374e7
EM		 1682_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1683 struct _raid_device *raid_device)
1684{
1685 Mpi2RaidVolPage0_t *vol_pg0;
1686 Mpi2RaidPhysDiskPage0_t pd_pg0;
1687 Mpi2SasDevicePage0_t sas_device_pg0;
1688 Mpi2ConfigReply_t mpi_reply;
1689 u16 sz;
1690 u8 num_pds;
1691
1692 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1693 &num_pds)) || !num_pds) {
6faace2a 1694 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1695 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1696 __func__));
1697 return 1;
635374e7
EM		 1698 }
1699
1700 raid_device->num_pds = num_pds;
1701 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1702 sizeof(Mpi2RaidVol0PhysDisk_t));
1703 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1704 if (!vol_pg0) {
6faace2a 1705 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1706 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1707 __func__));
1708 return 1;
635374e7
EM		 1709 }
1710
1711 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1712 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
6faace2a 1713 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
1714 "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
1715 __func__));
635374e7 1716 kfree(vol_pg0);
6faace2a 1717 return 1;
635374e7
EM		 1718 }
1719
1720 raid_device->volume_type = vol_pg0->VolumeType;
1721
1722 /* figure out what the underlying devices are by
1723 * obtaining the device_info bits for the 1st device
1724 */
1725 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1726 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1727 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1728 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1729 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1730 le16_to_cpu(pd_pg0.DevHandle)))) {
1731 raid_device->device_info =
1732 le32_to_cpu(sas_device_pg0.DeviceInfo);
1733 }
1734 }
1735
1736 kfree(vol_pg0);
6faace2a 1737 return 0;
635374e7 1738}
0bdccdb0
KD		 1739/**
1740 * _scsih_disable_ddio - Disable direct I/O for all the volumes
1741 * @ioc: per adapter object
1742 */
1743static void
1744_scsih_disable_ddio(struct MPT2SAS_ADAPTER *ioc)
1745{
1746 Mpi2RaidVolPage1_t vol_pg1;
1747 Mpi2ConfigReply_t mpi_reply;
1748 struct _raid_device *raid_device;
1749 u16 handle;
1750 u16 ioc_status;
09da0b32 1751 unsigned long flags;
0bdccdb0
KD		 1752
1753 handle = 0xFFFF;
1754 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1755 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1756 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1757 MPI2_IOCSTATUS_MASK;
1758 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1759 break;
1760 handle = le16_to_cpu(vol_pg1.DevHandle);
09da0b32 1761 spin_lock_irqsave(&ioc->raid_device_lock, flags);
0bdccdb0
KD		 1762 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
1763 if (raid_device)
1764 raid_device->direct_io_enabled = 0;
09da0b32 1765 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
0bdccdb0
KD		 1766 }
1767 return;
1768}
1769
1770
1771/**
1772 * _scsih_get_num_volumes - Get number of volumes in the ioc
1773 * @ioc: per adapter object
1774 */
1775static u8
1776_scsih_get_num_volumes(struct MPT2SAS_ADAPTER *ioc)
1777{
1778 Mpi2RaidVolPage1_t vol_pg1;
1779 Mpi2ConfigReply_t mpi_reply;
1780 u16 handle;
1781 u8 vol_cnt = 0;
1782 u16 ioc_status;
1783
1784 handle = 0xFFFF;
1785 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
1786 &vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1787 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1788 MPI2_IOCSTATUS_MASK;
1789 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
1790 break;
1791 vol_cnt++;
1792 handle = le16_to_cpu(vol_pg1.DevHandle);
1793 }
1794 return vol_cnt;
1795}
1796
1797
1798/**
1799 * _scsih_init_warpdrive_properties - Set properties for warpdrive direct I/O.
1800 * @ioc: per adapter object
1801 * @raid_device: the raid_device object
1802 */
1803static void
1804_scsih_init_warpdrive_properties(struct MPT2SAS_ADAPTER *ioc,
1805 struct _raid_device *raid_device)
1806{
1807 Mpi2RaidVolPage0_t *vol_pg0;
1808 Mpi2RaidPhysDiskPage0_t pd_pg0;
1809 Mpi2ConfigReply_t mpi_reply;
1810 u16 sz;
1811 u8 num_pds, count;
ba96bd0b 1812 unsigned long stripe_sz, block_sz;
1813 u8 stripe_exp, block_exp;
1814 u64 dev_max_lba;
0bdccdb0
KD		 1815
1816 if (!ioc->is_warpdrive)
1817 return;
1818
1819 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS) {
1820 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1821 "globally as drives are exposed\n", ioc->name);
1822 return;
1823 }
1824 if (_scsih_get_num_volumes(ioc) > 1) {
1825 _scsih_disable_ddio(ioc);
1826 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1827 "globally as number of drives > 1\n", ioc->name);
1828 return;
1829 }
1830 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1831 &num_pds)) || !num_pds) {
1832 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1833 "Failure in computing number of drives\n", ioc->name);
1834 return;
1835 }
1836
1837 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1838 sizeof(Mpi2RaidVol0PhysDisk_t));
1839 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1840 if (!vol_pg0) {
1841 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1842 "Memory allocation failure for RVPG0\n", ioc->name);
1843 return;
1844 }
1845
1846 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1847 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1848 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1849 "Failure in retrieving RVPG0\n", ioc->name);
1850 kfree(vol_pg0);
1851 return;
1852 }
1853
1854 /*
1855 * WARPDRIVE:If number of physical disks in a volume exceeds the max pds
1856 * assumed for WARPDRIVE, disable direct I/O
1857 */
1858 if (num_pds > MPT_MAX_WARPDRIVE_PDS) {
1859 printk(MPT2SAS_WARN_FMT "WarpDrive : Direct IO is disabled "
1860 "for the drive with handle(0x%04x): num_mem=%d, "
1861 "max_mem_allowed=%d\n", ioc->name, raid_device->handle,
1862 num_pds, MPT_MAX_WARPDRIVE_PDS);
1863 kfree(vol_pg0);
1864 return;
1865 }
1866 for (count = 0; count < num_pds; count++) {
1867 if (mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1868 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1869 vol_pg0->PhysDisk[count].PhysDiskNum) ||
d838c36c 1870 le16_to_cpu(pd_pg0.DevHandle) ==
1871 MPT2SAS_INVALID_DEVICE_HANDLE) {
0bdccdb0
KD		 1872 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
1873 "disabled for the drive with handle(0x%04x) member"
1874 "handle retrieval failed for member number=%d\n",
1875 ioc->name, raid_device->handle,
1876 vol_pg0->PhysDisk[count].PhysDiskNum);
1877 goto out_error;
1878 }
ba96bd0b 1879 /* Disable direct I/O if member drive lba exceeds 4 bytes */
1880 dev_max_lba = le64_to_cpu(pd_pg0.DeviceMaxLBA);
1881 if (dev_max_lba >> 32) {
1882 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
1883 "disabled for the drive with handle(0x%04x) member"
1884 "handle (0x%04x) unsupported max lba 0x%016llx\n",
1885 ioc->name, raid_device->handle,
1886 le16_to_cpu(pd_pg0.DevHandle),
1887 (unsigned long long)dev_max_lba);
1888 goto out_error;
1889 }
1890
0bdccdb0
KD		 1891 raid_device->pd_handle[count] = le16_to_cpu(pd_pg0.DevHandle);
1892 }
1893
1894 /*
1895 * Assumption for WD: Direct I/O is not supported if the volume is
ba96bd0b 1896 * not RAID0
0bdccdb0 1897 */
ba96bd0b 1898 if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0) {
0bdccdb0
KD		 1899 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
1900 "for the drive with handle(0x%04x): type=%d, "
1901 "s_sz=%uK, blk_size=%u\n", ioc->name,
1902 raid_device->handle, raid_device->volume_type,
ba96bd0b 1903 (le32_to_cpu(vol_pg0->StripeSize) *
1904 le16_to_cpu(vol_pg0->BlockSize)) / 1024,
0bdccdb0
KD		 1905 le16_to_cpu(vol_pg0->BlockSize));
1906 goto out_error;
1907 }
1908
ba96bd0b 1909 stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1910 stripe_exp = find_first_bit(&stripe_sz, 32);
1911 if (stripe_exp == 32) {
0bdccdb0 1912 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
ba96bd0b 1913 "for the drive with handle(0x%04x) invalid stripe sz %uK\n",
1914 ioc->name, raid_device->handle,
1915 (le32_to_cpu(vol_pg0->StripeSize) *
1916 le16_to_cpu(vol_pg0->BlockSize)) / 1024);
0bdccdb0
KD		 1917 goto out_error;
1918 }
ba96bd0b 1919 raid_device->stripe_exponent = stripe_exp;
1920 block_sz = le16_to_cpu(vol_pg0->BlockSize);
1921 block_exp = find_first_bit(&block_sz, 16);
1922 if (block_exp == 16) {
0bdccdb0 1923 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
ba96bd0b 1924 "for the drive with handle(0x%04x) invalid block sz %u\n",
0bdccdb0 1925 ioc->name, raid_device->handle,
ba96bd0b 1926 le16_to_cpu(vol_pg0->BlockSize));
0bdccdb0
KD		 1927 goto out_error;
1928 }
ba96bd0b 1929 raid_device->block_exponent = block_exp;
0bdccdb0
KD		 1930 raid_device->direct_io_enabled = 1;
1931
1932 printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is Enabled for the drive"
1933 " with handle(0x%04x)\n", ioc->name, raid_device->handle);
1934 /*
1935 * WARPDRIVE: Though the following fields are not used for direct IO,
1936 * stored for future purpose:
1937 */
1938 raid_device->max_lba = le64_to_cpu(vol_pg0->MaxLBA);
1939 raid_device->stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
1940 raid_device->block_sz = le16_to_cpu(vol_pg0->BlockSize);
1941
1942
1943 kfree(vol_pg0);
1944 return;
1945
1946out_error:
1947 raid_device->direct_io_enabled = 0;
1948 for (count = 0; count < num_pds; count++)
1949 raid_device->pd_handle[count] = 0;
1950 kfree(vol_pg0);
1951 return;
1952}
635374e7 1953
84f0b04a
KD		 1954/**
1955 * _scsih_enable_tlr - setting TLR flags
1956 * @ioc: per adapter object
1957 * @sdev: scsi device struct
1958 *
1959 * Enabling Transaction Layer Retries for tape devices when
1960 * vpd page 0x90 is present
1961 *
1962 */
1963static void
1964_scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
1965{
1966 /* only for TAPE */
1967 if (sdev->type != TYPE_TAPE)
1968 return;
1969
1970 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1971 return;
1972
1973 sas_enable_tlr(sdev);
1974 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1975 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1976 return;
1977
1978}
1979
635374e7 1980/**
d5d135b3 1981 * _scsih_slave_configure - device configure routine.
635374e7
EM		 1982 * @sdev: scsi device struct
1983 *
1984 * Returns 0 if ok. Any other return is assumed to be an error and
1985 * the device is ignored.
1986 */
1987static int
d5d135b3 1988_scsih_slave_configure(struct scsi_device *sdev)
635374e7
EM		 1989{
1990 struct Scsi_Host *shost = sdev->host;
1991 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1992 struct MPT2SAS_DEVICE *sas_device_priv_data;
1993 struct MPT2SAS_TARGET *sas_target_priv_data;
1994 struct _sas_device *sas_device;
1995 struct _raid_device *raid_device;
1996 unsigned long flags;
1997 int qdepth;
1998 u8 ssp_target = 0;
1999 char *ds = "";
2000 char *r_level = "";
09da0b32 2001 u16 handle, volume_handle = 0;
2002 u64 volume_wwid = 0;
635374e7
EM		 2003
2004 qdepth = 1;
2005 sas_device_priv_data = sdev->hostdata;
2006 sas_device_priv_data->configured_lun = 1;
2007 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
2008 sas_target_priv_data = sas_device_priv_data->sas_target;
09da0b32 2009 handle = sas_target_priv_data->handle;
635374e7
EM		 2010
2011 /* raid volume handling */
2012 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
2013
2014 spin_lock_irqsave(&ioc->raid_device_lock, flags);
09da0b32 2015 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
635374e7
EM		 2016 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
2017 if (!raid_device) {
6faace2a 2018 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2019 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2020 __LINE__, __func__));
2021 return 1;
635374e7
EM		 2022 }
2023
6faace2a 2024 if (_scsih_get_volume_capabilities(ioc, raid_device)) {
2025 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2026 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2027 __LINE__, __func__));
2028 return 1;
2029 }
0bdccdb0
KD		 2030 /*
2031 * WARPDRIVE: Initialize the required data for Direct IO
2032 */
2033 _scsih_init_warpdrive_properties(ioc, raid_device);
2034
635374e7
EM		 2035 /* RAID Queue Depth Support
2036 * IS volume = underlying qdepth of drive type, either
2037 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
2038 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
2039 */
2040 if (raid_device->device_info &
2041 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
2042 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
2043 ds = "SSP";
2044 } else {
2045 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
2046 if (raid_device->device_info &
2047 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
2048 ds = "SATA";
2049 else
2050 ds = "STP";
2051 }
2052
2053 switch (raid_device->volume_type) {
2054 case MPI2_RAID_VOL_TYPE_RAID0:
2055 r_level = "RAID0";
2056 break;
2057 case MPI2_RAID_VOL_TYPE_RAID1E:
2058 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
ed79f128 2059 if (ioc->manu_pg10.OEMIdentifier &&
c97951ec 2060 (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
ed79f128
KD		 2061 MFG10_GF0_R10_DISPLAY) &&
2062 !(raid_device->num_pds % 2))
2063 r_level = "RAID10";
2064 else
2065 r_level = "RAID1E";
635374e7
EM		 2066 break;
2067 case MPI2_RAID_VOL_TYPE_RAID1:
2068 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2069 r_level = "RAID1";
2070 break;
2071 case MPI2_RAID_VOL_TYPE_RAID10:
2072 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2073 r_level = "RAID10";
2074 break;
2075 case MPI2_RAID_VOL_TYPE_UNKNOWN:
2076 default:
2077 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
2078 r_level = "RAIDX";
2079 break;
2080 }
2081
0bdccdb0
KD		 2082 if (!ioc->hide_ir_msg)
2083 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
2084 "wwid(0x%016llx), pd_count(%d), type(%s)\n",
2085 r_level, raid_device->handle,
2086 (unsigned long long)raid_device->wwid,
2087 raid_device->num_pds, ds);
e881a172 2088 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
f7c95ef0 2089 /* raid transport support */
0bdccdb0 2090 if (!ioc->is_warpdrive)
09da0b32 2091 _scsih_set_level(sdev, raid_device->volume_type);
635374e7
EM		 2092 return 0;
2093 }
2094
2095 /* non-raid handling */
09da0b32 2096 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
2097 if (mpt2sas_config_get_volume_handle(ioc, handle,
2098 &volume_handle)) {
2099 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2100 "failure at %s:%d/%s()!\n", ioc->name,
2101 __FILE__, __LINE__, __func__));
2102 return 1;
635374e7 2103 }
09da0b32 2104 if (volume_handle && mpt2sas_config_get_volume_wwid(ioc,
2105 volume_handle, &volume_wwid)) {
2106 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
2107 "failure at %s:%d/%s()!\n", ioc->name,
2108 __FILE__, __LINE__, __func__));
2109 return 1;
635374e7 2110 }
09da0b32 2111 }
635374e7 2112
09da0b32 2113 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2114 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2115 sas_device_priv_data->sas_target->sas_address);
2116 if (!sas_device) {
2117 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6faace2a 2118 dfailprintk(ioc, printk(MPT2SAS_WARN_FMT
09da0b32 2119 "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
2120 __LINE__, __func__));
6faace2a 2121 return 1;
635374e7 2122 }
09da0b32 2123 sas_device->volume_handle = volume_handle;
2124 sas_device->volume_wwid = volume_wwid;
2125 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
2126 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
2127 ssp_target = 1;
2128 ds = "SSP";
2129 } else {
2130 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
2131 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
2132 ds = "STP";
2133 else if (sas_device->device_info &
2134 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
2135 ds = "SATA";
2136 }
2137 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
2138 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
2139 ds, sas_device->handle,
2140 (unsigned long long)sas_device->sas_address,
2141 sas_device->phy,
2142 (unsigned long long)sas_device->device_name);
2143 sdev_printk(KERN_INFO, sdev, "%s: "
2144 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
2145 (unsigned long long) sas_device->enclosure_logical_id,
2146 sas_device->slot);
2147
2148 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2149 if (!ssp_target)
2150 _scsih_display_sata_capabilities(ioc, handle, sdev);
2151
635374e7 2152
e881a172 2153 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
635374e7 2154
84f0b04a 2155 if (ssp_target) {
635374e7 2156 sas_read_port_mode_page(sdev);
84f0b04a
KD		 2157 _scsih_enable_tlr(ioc, sdev);
2158 }
635374e7
EM		 2159 return 0;
2160}
2161
2162/**
d5d135b3 2163 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
635374e7
EM		 2164 * @sdev: scsi device struct
2165 * @bdev: pointer to block device context
2166 * @capacity: device size (in 512 byte sectors)
2167 * @params: three element array to place output:
2168 * params[0] number of heads (max 255)
2169 * params[1] number of sectors (max 63)
2170 * params[2] number of cylinders
2171 *
2172 * Return nothing.
2173 */
2174static int
d5d135b3 2175_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
635374e7
EM		 2176 sector_t capacity, int params[])
2177{
2178 int heads;
2179 int sectors;
2180 sector_t cylinders;
2181 ulong dummy;
2182
2183 heads = 64;
2184 sectors = 32;
2185
2186 dummy = heads * sectors;
2187 cylinders = capacity;
2188 sector_div(cylinders, dummy);
2189
2190 /*
2191 * Handle extended translation size for logical drives
2192 * > 1Gb
2193 */
2194 if ((ulong)capacity >= 0x200000) {
2195 heads = 255;
2196 sectors = 63;
2197 dummy = heads * sectors;
2198 cylinders = capacity;
2199 sector_div(cylinders, dummy);
2200 }
2201
2202 /* return result */
2203 params[0] = heads;
2204 params[1] = sectors;
2205 params[2] = cylinders;
2206
2207 return 0;
2208}
2209
2210/**
2211 * _scsih_response_code - translation of device response code
2212 * @ioc: per adapter object
2213 * @response_code: response code returned by the device
2214 *
2215 * Return nothing.
2216 */
2217static void
2218_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
2219{
2220 char *desc;
2221
2222 switch (response_code) {
2223 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
2224 desc = "task management request completed";
2225 break;
2226 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
2227 desc = "invalid frame";
2228 break;
2229 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
2230 desc = "task management request not supported";
2231 break;
2232 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
2233 desc = "task management request failed";
2234 break;
2235 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
2236 desc = "task management request succeeded";
2237 break;
2238 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
2239 desc = "invalid lun";
2240 break;
2241 case 0xA:
2242 desc = "overlapped tag attempted";
2243 break;
2244 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
2245 desc = "task queued, however not sent to target";
2246 break;
2247 default:
2248 desc = "unknown";
2249 break;
2250 }
2251 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
2252 ioc->name, response_code, desc);
2253}
2254
2255/**
d5d135b3 2256 * _scsih_tm_done - tm completion routine
635374e7
EM		 2257 * @ioc: per adapter object
2258 * @smid: system request message index
7b936b02 2259 * @msix_index: MSIX table index supplied by the OS
635374e7
EM		 2260 * @reply: reply message frame(lower 32bit addr)
2261 * Context: none.
2262 *
2263 * The callback handler when using scsih_issue_tm.
2264 *
77e63ed4
KD		 2265 * Return 1 meaning mf should be freed from _base_interrupt
2266 * 0 means the mf is freed from this function.
635374e7 2267 */
77e63ed4 2268static u8
7b936b02 2269_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
635374e7
EM		 2270{
2271 MPI2DefaultReply_t *mpi_reply;
2272
2273 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
77e63ed4 2274 return 1;
635374e7 2275 if (ioc->tm_cmds.smid != smid)
77e63ed4 2276 return 1;
911ae943 2277 mpt2sas_base_flush_reply_queues(ioc);
635374e7
EM		 2278 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
2279 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
2280 if (mpi_reply) {
2281 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
2282 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
2283 }
2284 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
2285 complete(&ioc->tm_cmds.done);
77e63ed4 2286 return 1;
635374e7
EM		 2287}
2288
2289/**
2290 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
2291 * @ioc: per adapter object
2292 * @handle: device handle
2293 *
2294 * During taskmangement request, we need to freeze the device queue.
2295 */
2296void
2297mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2298{
2299 struct MPT2SAS_DEVICE *sas_device_priv_data;
2300 struct scsi_device *sdev;
2301 u8 skip = 0;
2302
2303 shost_for_each_device(sdev, ioc->shost) {
2304 if (skip)
2305 continue;
2306 sas_device_priv_data = sdev->hostdata;
2307 if (!sas_device_priv_data)
2308 continue;
2309 if (sas_device_priv_data->sas_target->handle == handle) {
2310 sas_device_priv_data->sas_target->tm_busy = 1;
2311 skip = 1;
2312 ioc->ignore_loginfos = 1;
2313 }
2314 }
2315}
2316
2317/**
2318 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
2319 * @ioc: per adapter object
2320 * @handle: device handle
2321 *
2322 * During taskmangement request, we need to freeze the device queue.
2323 */
2324void
2325mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2326{
2327 struct MPT2SAS_DEVICE *sas_device_priv_data;
2328 struct scsi_device *sdev;
2329 u8 skip = 0;
2330
2331 shost_for_each_device(sdev, ioc->shost) {
2332 if (skip)
2333 continue;
2334 sas_device_priv_data = sdev->hostdata;
2335 if (!sas_device_priv_data)
2336 continue;
2337 if (sas_device_priv_data->sas_target->handle == handle) {
2338 sas_device_priv_data->sas_target->tm_busy = 0;
2339 skip = 1;
2340 ioc->ignore_loginfos = 0;
2341 }
2342 }
2343}
2344
8ed9a03a 2345
635374e7
EM		 2346/**
2347 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
2348 * @ioc: per adapter struct
2349 * @device_handle: device handle
8ed9a03a
KD		 2350 * @channel: the channel assigned by the OS
2351 * @id: the id assigned by the OS
635374e7
EM		 2352 * @lun: lun number
2353 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
2354 * @smid_task: smid assigned to the task
2355 * @timeout: timeout in seconds
f93213de
KD		 2356 * @serial_number: the serial_number from scmd
2357 * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
8ed9a03a 2358 * Context: user
635374e7
EM		 2359 *
2360 * A generic API for sending task management requests to firmware.
2361 *
635374e7
EM		 2362 * The callback index is set inside `ioc->tm_cb_idx`.
2363 *
8ed9a03a 2364 * Return SUCCESS or FAILED.
635374e7 2365 */
8ed9a03a
KD		 2366int
2367mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
2368 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
f93213de 2369 unsigned long serial_number, enum mutex_type m_type)
635374e7
EM		 2370{
2371 Mpi2SCSITaskManagementRequest_t *mpi_request;
2372 Mpi2SCSITaskManagementReply_t *mpi_reply;
2373 u16 smid = 0;
2374 u32 ioc_state;
2375 unsigned long timeleft;
f93213de 2376 struct scsiio_tracker *scsi_lookup = NULL;
8ed9a03a 2377 int rc;
635374e7 2378
f93213de
KD		 2379 if (m_type == TM_MUTEX_ON)
2380 mutex_lock(&ioc->tm_cmds.mutex);
155dd4c7
KD		 2381 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
2382 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
2383 __func__, ioc->name);
8ed9a03a
KD		 2384 rc = FAILED;
2385 goto err_out;
155dd4c7
KD		 2386 }
2387
3cb5469a
EM		 2388 if (ioc->shost_recovery || ioc->remove_host ||
2389 ioc->pci_error_recovery) {
635374e7
EM		 2390 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
2391 __func__, ioc->name);
8ed9a03a
KD		 2392 rc = FAILED;
2393 goto err_out;
635374e7 2394 }
635374e7
EM		 2395
2396 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
2397 if (ioc_state & MPI2_DOORBELL_USED) {
eabb08ad 2398 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
635374e7 2399 "active!\n", ioc->name));
f93213de 2400 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8ed9a03a 2401 FORCE_BIG_HAMMER);
f93213de 2402 rc = (!rc) ? SUCCESS : FAILED;
8ed9a03a 2403 goto err_out;
635374e7
EM		 2404 }
2405
2406 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2407 mpt2sas_base_fault_info(ioc, ioc_state &
2408 MPI2_DOORBELL_DATA_MASK);
f93213de 2409 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8ed9a03a 2410 FORCE_BIG_HAMMER);
f93213de 2411 rc = (!rc) ? SUCCESS : FAILED;
8ed9a03a 2412 goto err_out;
635374e7
EM		 2413 }
2414
595bb0bd 2415 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
635374e7
EM		 2416 if (!smid) {
2417 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2418 ioc->name, __func__);
8ed9a03a
KD		 2419 rc = FAILED;
2420 goto err_out;
635374e7
EM		 2421 }
2422
f93213de
KD		 2423 if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
2424 scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
2425
635374e7 2426 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
595bb0bd
KD		 2427 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
2428 smid_task));
635374e7
EM		 2429 ioc->tm_cmds.status = MPT2_CMD_PENDING;
2430 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2431 ioc->tm_cmds.smid = smid;
2432 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
f93213de 2433 memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
635374e7
EM		 2434 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2435 mpi_request->DevHandle = cpu_to_le16(handle);
2436 mpi_request->TaskType = type;
2437 mpi_request->TaskMID = cpu_to_le16(smid_task);
2438 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2439 mpt2sas_scsih_set_tm_flag(ioc, handle);
5b768581 2440 init_completion(&ioc->tm_cmds.done);
7b936b02 2441 mpt2sas_base_put_smid_hi_priority(ioc, smid);
635374e7 2442 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
635374e7
EM		 2443 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
2444 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2445 ioc->name, __func__);
2446 _debug_dump_mf(mpi_request,
2447 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
8ed9a03a 2448 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
f93213de 2449 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8ed9a03a 2450 FORCE_BIG_HAMMER);
f93213de 2451 rc = (!rc) ? SUCCESS : FAILED;
8ed9a03a
KD		 2452 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2453 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2454 goto err_out;
2455 }
635374e7
EM		 2456 }
2457
2458 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
2459 mpi_reply = ioc->tm_cmds.reply;
2460 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
2461 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2462 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2463 le32_to_cpu(mpi_reply->IOCLogInfo),
2464 le32_to_cpu(mpi_reply->TerminationCount)));
8ed9a03a 2465 if (ioc->logging_level & MPT_DEBUG_TM) {
635374e7 2466 _scsih_response_code(ioc, mpi_reply->ResponseCode);
8ed9a03a
KD		 2467 if (mpi_reply->IOCStatus)
2468 _debug_dump_mf(mpi_request,
2469 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2470 }
635374e7 2471 }
8ed9a03a 2472
8ed9a03a
KD		 2473 switch (type) {
2474 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
f93213de
KD		 2475 rc = SUCCESS;
2476 if (scsi_lookup->scmd == NULL)
2477 break;
2478 rc = FAILED;
8ed9a03a
KD		 2479 break;
2480
2481 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2482 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2483 rc = FAILED;
2484 else
2485 rc = SUCCESS;
2486 break;
2487
f93213de 2488 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
8ed9a03a
KD		 2489 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2490 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2491 rc = FAILED;
2492 else
2493 rc = SUCCESS;
2494 break;
f93213de
KD		 2495 case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
2496 rc = SUCCESS;
2497 break;
2498 default:
2499 rc = FAILED;
2500 break;
8ed9a03a
KD		 2501 }
2502
8ed9a03a
KD		 2503 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2504 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
f93213de
KD		 2505 if (m_type == TM_MUTEX_ON)
2506 mutex_unlock(&ioc->tm_cmds.mutex);
8ed9a03a
KD		 2507
2508 return rc;
2509
2510 err_out:
f93213de
KD		 2511 if (m_type == TM_MUTEX_ON)
2512 mutex_unlock(&ioc->tm_cmds.mutex);
8ed9a03a 2513 return rc;
635374e7
EM		 2514}
2515
8e864a81
KD		 2516/**
2517 * _scsih_tm_display_info - displays info about the device
2518 * @ioc: per adapter struct
2519 * @scmd: pointer to scsi command object
2520 *
2521 * Called by task management callback handlers.
2522 */
2523static void
2524_scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2525{
2526 struct scsi_target *starget = scmd->device->sdev_target;
2527 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
2528 struct _sas_device *sas_device = NULL;
2529 unsigned long flags;
0bdccdb0 2530 char *device_str = NULL;
8e864a81
KD		 2531
2532 if (!priv_target)
2533 return;
0bdccdb0
KD		 2534 if (ioc->hide_ir_msg)
2535 device_str = "WarpDrive";
2536 else
2537 device_str = "volume";
8e864a81
KD		 2538
2539 scsi_print_command(scmd);
2540 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
0bdccdb0
KD		 2541 starget_printk(KERN_INFO, starget, "%s handle(0x%04x), "
2542 "%s wwid(0x%016llx)\n", device_str, priv_target->handle,
2543 device_str, (unsigned long long)priv_target->sas_address);
8e864a81
KD		 2544 } else {
2545 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2546 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2547 priv_target->sas_address);
2548 if (sas_device) {
2549 if (priv_target->flags &
2550 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2551 starget_printk(KERN_INFO, starget,
2552 "volume handle(0x%04x), "
2553 "volume wwid(0x%016llx)\n",
2554 sas_device->volume_handle,
2555 (unsigned long long)sas_device->volume_wwid);
2556 }
2557 starget_printk(KERN_INFO, starget,
2558 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2559 sas_device->handle,
2560 (unsigned long long)sas_device->sas_address,
2561 sas_device->phy);
2562 starget_printk(KERN_INFO, starget,
2563 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2564 (unsigned long long)sas_device->enclosure_logical_id,
2565 sas_device->slot);
2566 }
2567 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2568 }
2569}
2570
635374e7 2571/**
d5d135b3 2572 * _scsih_abort - eh threads main abort routine
8e864a81 2573 * @scmd: pointer to scsi command object
635374e7
EM		 2574 *
2575 * Returns SUCCESS if command aborted else FAILED
2576 */
2577static int
d5d135b3 2578_scsih_abort(struct scsi_cmnd *scmd)
635374e7
EM		 2579{
2580 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2581 struct MPT2SAS_DEVICE *sas_device_priv_data;
2582 u16 smid;
2583 u16 handle;
2584 int r;
635374e7 2585
8e864a81
KD		 2586 sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
2587 "scmd(%p)\n", scmd);
2588 _scsih_tm_display_info(ioc, scmd);
635374e7
EM		 2589
2590 sas_device_priv_data = scmd->device->hostdata;
2591 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
8e864a81
KD		 2592 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
2593 "scmd(%p)\n", scmd);
635374e7
EM		 2594 scmd->result = DID_NO_CONNECT << 16;
2595 scmd->scsi_done(scmd);
2596 r = SUCCESS;
2597 goto out;
2598 }
2599
2600 /* search for the command */
2601 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2602 if (!smid) {
2603 scmd->result = DID_RESET << 16;
2604 r = SUCCESS;
2605 goto out;
2606 }
2607
2608 /* for hidden raid components and volumes this is not supported */
2609 if (sas_device_priv_data->sas_target->flags &
2610 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2611 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2612 scmd->result = DID_RESET << 16;
2613 r = FAILED;
2614 goto out;
2615 }
2616
fa7f3167
KD		 2617 mpt2sas_halt_firmware(ioc);
2618
635374e7 2619 handle = sas_device_priv_data->sas_target->handle;
8ed9a03a
KD		 2620 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2621 scmd->device->id, scmd->device->lun,
f93213de
KD		 2622 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
2623 scmd->serial_number, TM_MUTEX_ON);
635374e7
EM		 2624
2625 out:
8e864a81
KD		 2626 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
2627 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
635374e7
EM		 2628 return r;
2629}
2630
635374e7 2631/**
d5d135b3 2632 * _scsih_dev_reset - eh threads main device reset routine
8e864a81 2633 * @scmd: pointer to scsi command object
635374e7
EM		 2634 *
2635 * Returns SUCCESS if command aborted else FAILED
2636 */
2637static int
d5d135b3 2638_scsih_dev_reset(struct scsi_cmnd *scmd)
635374e7
EM		 2639{
2640 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2641 struct MPT2SAS_DEVICE *sas_device_priv_data;
2642 struct _sas_device *sas_device;
2643 unsigned long flags;
2644 u16 handle;
2645 int r;
2646
8e864a81
KD		 2647 struct scsi_target *starget = scmd->device->sdev_target;
2648
37aaa78b 2649 starget_printk(KERN_INFO, starget, "attempting device reset! "
8e864a81
KD		 2650 "scmd(%p)\n", scmd);
2651 _scsih_tm_display_info(ioc, scmd);
635374e7
EM		 2652
2653 sas_device_priv_data = scmd->device->hostdata;
2654 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
37aaa78b 2655 starget_printk(KERN_INFO, starget, "device been deleted! "
8e864a81 2656 "scmd(%p)\n", scmd);
635374e7
EM		 2657 scmd->result = DID_NO_CONNECT << 16;
2658 scmd->scsi_done(scmd);
2659 r = SUCCESS;
2660 goto out;
2661 }
2662
2663 /* for hidden raid components obtain the volume_handle */
2664 handle = 0;
2665 if (sas_device_priv_data->sas_target->flags &
2666 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2667 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2668 sas_device = _scsih_sas_device_find_by_handle(ioc,
2669 sas_device_priv_data->sas_target->handle);
2670 if (sas_device)
2671 handle = sas_device->volume_handle;
2672 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2673 } else
2674 handle = sas_device_priv_data->sas_target->handle;
2675
2676 if (!handle) {
2677 scmd->result = DID_RESET << 16;
2678 r = FAILED;
2679 goto out;
2680 }
2681
8ed9a03a
KD		 2682 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2683 scmd->device->id, scmd->device->lun,
f93213de
KD		 2684 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
2685 TM_MUTEX_ON);
993e0da7
EM		 2686
2687 out:
8e864a81
KD		 2688 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2689 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
993e0da7
EM		 2690 return r;
2691}
2692
2693/**
d5d135b3 2694 * _scsih_target_reset - eh threads main target reset routine
8e864a81 2695 * @scmd: pointer to scsi command object
993e0da7
EM		 2696 *
2697 * Returns SUCCESS if command aborted else FAILED
2698 */
2699static int
d5d135b3 2700_scsih_target_reset(struct scsi_cmnd *scmd)
993e0da7
EM		 2701{
2702 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2703 struct MPT2SAS_DEVICE *sas_device_priv_data;
2704 struct _sas_device *sas_device;
2705 unsigned long flags;
2706 u16 handle;
2707 int r;
8e864a81 2708 struct scsi_target *starget = scmd->device->sdev_target;
993e0da7 2709
8e864a81
KD		 2710 starget_printk(KERN_INFO, starget, "attempting target reset! "
2711 "scmd(%p)\n", scmd);
2712 _scsih_tm_display_info(ioc, scmd);
993e0da7
EM		 2713
2714 sas_device_priv_data = scmd->device->hostdata;
2715 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
8e864a81
KD		 2716 starget_printk(KERN_INFO, starget, "target been deleted! "
2717 "scmd(%p)\n", scmd);
993e0da7
EM		 2718 scmd->result = DID_NO_CONNECT << 16;
2719 scmd->scsi_done(scmd);
2720 r = SUCCESS;
2721 goto out;
2722 }
2723
2724 /* for hidden raid components obtain the volume_handle */
2725 handle = 0;
2726 if (sas_device_priv_data->sas_target->flags &
2727 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2728 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2729 sas_device = _scsih_sas_device_find_by_handle(ioc,
2730 sas_device_priv_data->sas_target->handle);
2731 if (sas_device)
2732 handle = sas_device->volume_handle;
2733 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2734 } else
2735 handle = sas_device_priv_data->sas_target->handle;
2736
2737 if (!handle) {
2738 scmd->result = DID_RESET << 16;
2739 r = FAILED;
2740 goto out;
2741 }
2742
8ed9a03a
KD		 2743 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2744 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
f93213de 2745 30, 0, TM_MUTEX_ON);
635374e7
EM		 2746
2747 out:
8e864a81
KD		 2748 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2749 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
635374e7
EM		 2750 return r;
2751}
2752
2753/**
595bb0bd 2754 * _scsih_host_reset - eh threads main host reset routine
8e864a81 2755 * @scmd: pointer to scsi command object
635374e7
EM		 2756 *
2757 * Returns SUCCESS if command aborted else FAILED
2758 */
2759static int
d5d135b3 2760_scsih_host_reset(struct scsi_cmnd *scmd)
635374e7
EM		 2761{
2762 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2763 int r, retval;
2764
2765 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2766 ioc->name, scmd);
2767 scsi_print_command(scmd);
2768
2769 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2770 FORCE_BIG_HAMMER);
2771 r = (retval < 0) ? FAILED : SUCCESS;
2772 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2773 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2774
2775 return r;
2776}
2777
2778/**
2779 * _scsih_fw_event_add - insert and queue up fw_event
2780 * @ioc: per adapter object
2781 * @fw_event: object describing the event
2782 * Context: This function will acquire ioc->fw_event_lock.
2783 *
2784 * This adds the firmware event object into link list, then queues it up to
2785 * be processed from user context.
2786 *
2787 * Return nothing.
2788 */
2789static void
2790_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2791{
2792 unsigned long flags;
2793
2794 if (ioc->firmware_event_thread == NULL)
2795 return;
2796
2797 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2798 list_add_tail(&fw_event->list, &ioc->fw_event_list);
f1c35e6a
KD		 2799 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2800 queue_delayed_work(ioc->firmware_event_thread,
2801 &fw_event->delayed_work, 0);
635374e7
EM		 2802 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2803}
2804
2805/**
2806 * _scsih_fw_event_free - delete fw_event
2807 * @ioc: per adapter object
2808 * @fw_event: object describing the event
2809 * Context: This function will acquire ioc->fw_event_lock.
2810 *
2811 * This removes firmware event object from link list, frees associated memory.
2812 *
2813 * Return nothing.
2814 */
2815static void
2816_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2817 *fw_event)
2818{
2819 unsigned long flags;
2820
2821 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2822 list_del(&fw_event->list);
2823 kfree(fw_event->event_data);
2824 kfree(fw_event);
2825 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2826}
2827
f1c35e6a 2828
635374e7 2829/**
921cd802 2830 * _scsih_error_recovery_delete_devices - remove devices not responding
635374e7 2831 * @ioc: per adapter object
635374e7
EM		 2832 *
2833 * Return nothing.
2834 */
2835static void
921cd802 2836_scsih_error_recovery_delete_devices(struct MPT2SAS_ADAPTER *ioc)
635374e7 2837{
f1c35e6a 2838 struct fw_event_work *fw_event;
635374e7 2839
921cd802 2840 if (ioc->is_driver_loading)
f1c35e6a 2841 return;
181a9d79
DC		 2842
2843 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2844 if (!fw_event)
2845 return;
2846
921cd802 2847 fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES;
2848 fw_event->ioc = ioc;
2849 _scsih_fw_event_add(ioc, fw_event);
2850}
2851
2852/**
2853 * mpt2sas_port_enable_complete - port enable completed (fake event)
2854 * @ioc: per adapter object
2855 *
2856 * Return nothing.
2857 */
2858void
2859mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc)
2860{
2861 struct fw_event_work *fw_event;
2862
f1c35e6a
KD		 2863 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2864 if (!fw_event)
2865 return;
921cd802 2866 fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE;
f1c35e6a
KD		 2867 fw_event->ioc = ioc;
2868 _scsih_fw_event_add(ioc, fw_event);
635374e7
EM		 2869}
2870
2871/**
f1c35e6a 2872 * _scsih_fw_event_cleanup_queue - cleanup event queue
635374e7
EM		 2873 * @ioc: per adapter object
2874 *
f1c35e6a
KD		 2875 * Walk the firmware event queue, either killing timers, or waiting
2876 * for outstanding events to complete
635374e7
EM		 2877 *
2878 * Return nothing.
2879 */
2880static void
f1c35e6a 2881_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
635374e7 2882{
f1c35e6a 2883 struct fw_event_work *fw_event, *next;
635374e7 2884
f1c35e6a
KD		 2885 if (list_empty(&ioc->fw_event_list) ||
2886 !ioc->firmware_event_thread || in_interrupt())
2887 return;
635374e7 2888
f1c35e6a
KD		 2889 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2890 if (cancel_delayed_work(&fw_event->delayed_work)) {
2891 _scsih_fw_event_free(ioc, fw_event);
2892 continue;
2893 }
2894 fw_event->cancel_pending_work = 1;
2895 }
635374e7
EM		 2896}
2897
f93213de
KD		 2898/**
2899 * _scsih_ublock_io_all_device - unblock every device
2900 * @ioc: per adapter object
2901 *
2902 * change the device state from block to running
2903 */
2904static void
2905_scsih_ublock_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2906{
2907 struct MPT2SAS_DEVICE *sas_device_priv_data;
2908 struct scsi_device *sdev;
2909
2910 shost_for_each_device(sdev, ioc->shost) {
2911 sas_device_priv_data = sdev->hostdata;
2912 if (!sas_device_priv_data)
2913 continue;
2914 if (!sas_device_priv_data->block)
2915 continue;
2916 sas_device_priv_data->block = 0;
2917 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_running, "
2918 "handle(0x%04x)\n",
2919 sas_device_priv_data->sas_target->handle));
5d9fb5cc 2920 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
f93213de
KD		 2921 }
2922}
635374e7
EM		 2923/**
2924 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2925 * @ioc: per adapter object
2926 * @handle: device handle
2927 *
2928 * During device pull we need to appropiately set the sdev state.
2929 */
2930static void
39af7a98 2931_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
635374e7
EM		 2932{
2933 struct MPT2SAS_DEVICE *sas_device_priv_data;
2934 struct scsi_device *sdev;
2935
2936 shost_for_each_device(sdev, ioc->shost) {
2937 sas_device_priv_data = sdev->hostdata;
2938 if (!sas_device_priv_data)
2939 continue;
2940 if (!sas_device_priv_data->block)
2941 continue;
39af7a98 2942 if (sas_device_priv_data->sas_target->sas_address ==
2943 sas_address) {
635374e7
EM		 2944 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2945 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
39af7a98 2946 "sas address(0x%016llx)\n", ioc->name,
2947 (unsigned long long)sas_address));
635374e7 2948 sas_device_priv_data->block = 0;
5d9fb5cc 2949 scsi_internal_device_unblock(sdev, SDEV_RUNNING);
635374e7
EM		 2950 }
2951 }
2952}
2953
f93213de
KD		 2954/**
2955 * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
2956 * @ioc: per adapter object
2957 * @handle: device handle
2958 *
2959 * During device pull we need to appropiately set the sdev state.
2960 */
2961static void
2962_scsih_block_io_all_device(struct MPT2SAS_ADAPTER *ioc)
2963{
2964 struct MPT2SAS_DEVICE *sas_device_priv_data;
2965 struct scsi_device *sdev;
2966
2967 shost_for_each_device(sdev, ioc->shost) {
2968 sas_device_priv_data = sdev->hostdata;
2969 if (!sas_device_priv_data)
2970 continue;
2971 if (sas_device_priv_data->block)
2972 continue;
2973 sas_device_priv_data->block = 1;
2974 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, "device_blocked, "
2975 "handle(0x%04x)\n",
2976 sas_device_priv_data->sas_target->handle));
2977 scsi_internal_device_block(sdev);
2978 }
2979}
2980
2981
635374e7
EM		 2982/**
2983 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2984 * @ioc: per adapter object
2985 * @handle: device handle
2986 *
2987 * During device pull we need to appropiately set the sdev state.
2988 */
2989static void
2990_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2991{
2992 struct MPT2SAS_DEVICE *sas_device_priv_data;
2993 struct scsi_device *sdev;
2994
2995 shost_for_each_device(sdev, ioc->shost) {
2996 sas_device_priv_data = sdev->hostdata;
2997 if (!sas_device_priv_data)
2998 continue;
2999 if (sas_device_priv_data->block)
3000 continue;
3001 if (sas_device_priv_data->sas_target->handle == handle) {
3002 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
3003 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
3004 "handle(0x%04x)\n", ioc->name, handle));
3005 sas_device_priv_data->block = 1;
34a03bef 3006 scsi_internal_device_block(sdev);
635374e7
EM		 3007 }
3008 }
3009}
3010
3011/**
3012 * _scsih_block_io_to_children_attached_to_ex
3013 * @ioc: per adapter object
3014 * @sas_expander: the sas_device object
3015 *
3016 * This routine set sdev state to SDEV_BLOCK for all devices
3017 * attached to this expander. This function called when expander is
3018 * pulled.
3019 */
3020static void
3021_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
3022 struct _sas_node *sas_expander)
3023{
3024 struct _sas_port *mpt2sas_port;
3025 struct _sas_device *sas_device;
3026 struct _sas_node *expander_sibling;
3027 unsigned long flags;
3028
3029 if (!sas_expander)
3030 return;
3031
3032 list_for_each_entry(mpt2sas_port,
3033 &sas_expander->sas_port_list, port_list) {
3034 if (mpt2sas_port->remote_identify.device_type ==
3035 SAS_END_DEVICE) {
3036 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3037 sas_device =
3038 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3039 mpt2sas_port->remote_identify.sas_address);
09da0b32 3040 if (sas_device)
3041 set_bit(sas_device->handle,
3042 ioc->blocking_handles);
635374e7 3043 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
635374e7
EM		 3044 }
3045 }
3046
3047 list_for_each_entry(mpt2sas_port,
3048 &sas_expander->sas_port_list, port_list) {
3049
3050 if (mpt2sas_port->remote_identify.device_type ==
7f6f794d 3051 SAS_EDGE_EXPANDER_DEVICE ||
635374e7 3052 mpt2sas_port->remote_identify.device_type ==
7f6f794d 3053 SAS_FANOUT_EXPANDER_DEVICE) {
635374e7
EM		 3054 expander_sibling =
3055 mpt2sas_scsih_expander_find_by_sas_address(
3056 ioc, mpt2sas_port->remote_identify.sas_address);
635374e7
EM		 3057 _scsih_block_io_to_children_attached_to_ex(ioc,
3058 expander_sibling);
3059 }
3060 }
3061}
3062
3063/**
3064 * _scsih_block_io_to_children_attached_directly
3065 * @ioc: per adapter object
3066 * @event_data: topology change event data
3067 *
3068 * This routine set sdev state to SDEV_BLOCK for all devices
3069 * direct attached during device pull.
3070 */
3071static void
3072_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
3073 Mpi2EventDataSasTopologyChangeList_t *event_data)
3074{
3075 int i;
3076 u16 handle;
3077 u16 reason_code;
3078 u8 phy_number;
3079
3080 for (i = 0; i < event_data->NumEntries; i++) {
3081 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3082 if (!handle)
3083 continue;
3084 phy_number = event_data->StartPhyNum + i;
3085 reason_code = event_data->PHY[i].PhyStatus &
3086 MPI2_EVENT_SAS_TOPO_RC_MASK;
3087 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
3088 _scsih_block_io_device(ioc, handle);
3089 }
3090}
3091
77e63ed4
KD		 3092/**
3093 * _scsih_tm_tr_send - send task management request
3094 * @ioc: per adapter object
3095 * @handle: device handle
3096 * Context: interrupt time.
3097 *
25985edc 3098 * This code is to initiate the device removal handshake protocol
77e63ed4
KD		 3099 * with controller firmware. This function will issue target reset
3100 * using high priority request queue. It will send a sas iounit
25985edc 3101 * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
77e63ed4
KD		 3102 *
3103 * This is designed to send muliple task management request at the same
3104 * time to the fifo. If the fifo is full, we will append the request,
3105 * and process it in a future completion.
3106 */
3107static void
3108_scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3109{
3110 Mpi2SCSITaskManagementRequest_t *mpi_request;
77e63ed4
KD		 3111 u16 smid;
3112 struct _sas_device *sas_device;
f3db032f 3113 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
3114 u64 sas_address = 0;
77e63ed4
KD		 3115 unsigned long flags;
3116 struct _tr_list *delayed_tr;
f881cead 3117 u32 ioc_state;
77e63ed4 3118
f881cead 3119 if (ioc->remove_host) {
3120 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
3121 "removed: handle(0x%04x)\n", __func__, ioc->name, handle));
3122 return;
3123 } else if (ioc->pci_error_recovery) {
3124 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
3125 "error recovery: handle(0x%04x)\n", __func__, ioc->name,
3126 handle));
3127 return;
3128 }
3129 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3130 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3131 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
3132 "operational: handle(0x%04x)\n", __func__, ioc->name,
3133 handle));
77e63ed4
KD		 3134 return;
3135 }
3136
f3eedd69
KD		 3137 /* if PD, then return */
3138 if (test_bit(handle, ioc->pd_handles))
3139 return;
3140
77e63ed4
KD		 3141 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3142 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
f3eedd69
KD		 3143 if (sas_device && sas_device->starget &&
3144 sas_device->starget->hostdata) {
3145 sas_target_priv_data = sas_device->starget->hostdata;
3146 sas_target_priv_data->deleted = 1;
f3db032f 3147 sas_address = sas_device->sas_address;
1278b11f
KD		 3148 }
3149 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
77e63ed4 3150
f3db032f 3151 if (sas_target_priv_data) {
3152 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "setting delete flag: "
3153 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, handle,
3154 (unsigned long long)sas_address));
39af7a98 3155 _scsih_ublock_io_device(ioc, sas_address);
918134ef 3156 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
f3db032f 3157 }
3158
77e63ed4
KD		 3159 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
3160 if (!smid) {
3161 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3162 if (!delayed_tr)
3163 return;
3164 INIT_LIST_HEAD(&delayed_tr->list);
3165 delayed_tr->handle = handle;
1278b11f 3166 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
a28eb222 3167 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
1278b11f
KD		 3168 "DELAYED:tr:handle(0x%04x), (open)\n",
3169 ioc->name, handle));
3170 return;
77e63ed4
KD		 3171 }
3172
1278b11f
KD		 3173 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3174 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3175 ioc->tm_tr_cb_idx));
77e63ed4
KD		 3176 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3177 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3178 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3179 mpi_request->DevHandle = cpu_to_le16(handle);
3180 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
77e63ed4
KD		 3181 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3182}
3183
3184
3185
3186/**
3187 * _scsih_sas_control_complete - completion routine
3188 * @ioc: per adapter object
3189 * @smid: system request message index
3190 * @msix_index: MSIX table index supplied by the OS
3191 * @reply: reply message frame(lower 32bit addr)
3192 * Context: interrupt time.
3193 *
25985edc 3194 * This is the sas iounit control completion routine.
77e63ed4 3195 * This code is part of the code to initiate the device removal
25985edc 3196 * handshake protocol with controller firmware.
77e63ed4
KD		 3197 *
3198 * Return 1 meaning mf should be freed from _base_interrupt
3199 * 0 means the mf is freed from this function.
3200 */
3201static u8
3202_scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3203 u8 msix_index, u32 reply)
3204{
77e63ed4
KD		 3205 Mpi2SasIoUnitControlReply_t *mpi_reply =
3206 mpt2sas_base_get_reply_virt_addr(ioc, reply);
298c794d 3207 if (likely(mpi_reply)) {
3208 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3209 "sc_complete:handle(0x%04x), (open) "
3210 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
3211 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
3212 le16_to_cpu(mpi_reply->IOCStatus),
3213 le32_to_cpu(mpi_reply->IOCLogInfo)));
3214 } else {
3215 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3216 ioc->name, __FILE__, __LINE__, __func__);
3217 }
77e63ed4
KD		 3218 return 1;
3219}
3220
f3eedd69
KD		 3221/**
3222 * _scsih_tm_tr_volume_send - send target reset request for volumes
3223 * @ioc: per adapter object
3224 * @handle: device handle
3225 * Context: interrupt time.
3226 *
3227 * This is designed to send muliple task management request at the same
3228 * time to the fifo. If the fifo is full, we will append the request,
3229 * and process it in a future completion.
3230 */
3231static void
3232_scsih_tm_tr_volume_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3233{
3234 Mpi2SCSITaskManagementRequest_t *mpi_request;
3235 u16 smid;
3236 struct _tr_list *delayed_tr;
3237
3cb5469a
EM		 3238 if (ioc->shost_recovery || ioc->remove_host ||
3239 ioc->pci_error_recovery) {
f3eedd69
KD		 3240 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3241 "progress!\n", __func__, ioc->name));
3242 return;
3243 }
3244
3245 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
3246 if (!smid) {
3247 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3248 if (!delayed_tr)
3249 return;
3250 INIT_LIST_HEAD(&delayed_tr->list);
3251 delayed_tr->handle = handle;
3252 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
3253 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3254 "DELAYED:tr:handle(0x%04x), (open)\n",
3255 ioc->name, handle));
3256 return;
3257 }
3258
3259 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
3260 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
3261 ioc->tm_tr_volume_cb_idx));
3262 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3263 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
3264 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
3265 mpi_request->DevHandle = cpu_to_le16(handle);
3266 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3267 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3268}
3269
3270/**
3271 * _scsih_tm_volume_tr_complete - target reset completion
3272 * @ioc: per adapter object
3273 * @smid: system request message index
3274 * @msix_index: MSIX table index supplied by the OS
3275 * @reply: reply message frame(lower 32bit addr)
3276 * Context: interrupt time.
3277 *
3278 * Return 1 meaning mf should be freed from _base_interrupt
3279 * 0 means the mf is freed from this function.
3280 */
3281static u8
3282_scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
3283 u8 msix_index, u32 reply)
3284{
3285 u16 handle;
3286 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
3287 Mpi2SCSITaskManagementReply_t *mpi_reply =
3288 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3289
3cb5469a
EM		 3290 if (ioc->shost_recovery || ioc->remove_host ||
3291 ioc->pci_error_recovery) {
f3eedd69
KD		 3292 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
3293 "progress!\n", __func__, ioc->name));
3294 return 1;
3295 }
298c794d 3296 if (unlikely(!mpi_reply)) {
3297 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3298 ioc->name, __FILE__, __LINE__, __func__);
3299 return 1;
3300 }
f3eedd69
KD		 3301 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3302 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3303 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3304 dewtprintk(ioc, printk("spurious interrupt: "
3305 "handle(0x%04x:0x%04x), smid(%d)!!!\n", handle,
3306 le16_to_cpu(mpi_reply->DevHandle), smid));
3307 return 0;
3308 }
3309
3310 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3311 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3312 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3313 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3314 le32_to_cpu(mpi_reply->IOCLogInfo),
3315 le32_to_cpu(mpi_reply->TerminationCount)));
3316
3317 return _scsih_check_for_pending_tm(ioc, smid);
3318}
3319
77e63ed4
KD		 3320/**
3321 * _scsih_tm_tr_complete -
3322 * @ioc: per adapter object
3323 * @smid: system request message index
3324 * @msix_index: MSIX table index supplied by the OS
3325 * @reply: reply message frame(lower 32bit addr)
3326 * Context: interrupt time.
3327 *
3328 * This is the target reset completion routine.
3329 * This code is part of the code to initiate the device removal
25985edc
LDM		 3330 * handshake protocol with controller firmware.
3331 * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
77e63ed4
KD		 3332 *
3333 * Return 1 meaning mf should be freed from _base_interrupt
3334 * 0 means the mf is freed from this function.
3335 */
3336static u8
3337_scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
3338 u32 reply)
3339{
77e63ed4 3340 u16 handle;
1278b11f 3341 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
77e63ed4
KD		 3342 Mpi2SCSITaskManagementReply_t *mpi_reply =
3343 mpt2sas_base_get_reply_virt_addr(ioc, reply);
3344 Mpi2SasIoUnitControlRequest_t *mpi_request;
3345 u16 smid_sas_ctrl;
f881cead 3346 u32 ioc_state;
77e63ed4 3347
f881cead 3348 if (ioc->remove_host) {
3349 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been "
3350 "removed\n", __func__, ioc->name));
3351 return 1;
3352 } else if (ioc->pci_error_recovery) {
3353 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci "
3354 "error recovery\n", __func__, ioc->name));
3355 return 1;
3356 }
3357 ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
3358 if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
3359 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not "
3360 "operational\n", __func__, ioc->name));
1278b11f 3361 return 1;
77e63ed4 3362 }
298c794d 3363 if (unlikely(!mpi_reply)) {
3364 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
3365 ioc->name, __FILE__, __LINE__, __func__);
3366 return 1;
3367 }
1278b11f
KD		 3368 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
3369 handle = le16_to_cpu(mpi_request_tm->DevHandle);
3370 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
3371 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
3372 "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
3373 le16_to_cpu(mpi_reply->DevHandle), smid));
3374 return 0;
77e63ed4
KD		 3375 }
3376
1278b11f
KD		 3377 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3378 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
3379 "loginfo(0x%08x), completed(%d)\n", ioc->name,
3380 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
3381 le32_to_cpu(mpi_reply->IOCLogInfo),
3382 le32_to_cpu(mpi_reply->TerminationCount)));
3383
77e63ed4
KD		 3384 smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
3385 if (!smid_sas_ctrl) {
3386 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3387 ioc->name, __func__);
1278b11f 3388 return 1;
77e63ed4
KD		 3389 }
3390
1278b11f
KD		 3391 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
3392 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
3393 ioc->tm_sas_control_cb_idx));
77e63ed4
KD		 3394 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
3395 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3396 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3397 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
1278b11f 3398 mpi_request->DevHandle = mpi_request_tm->DevHandle;
77e63ed4 3399 mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
1278b11f 3400
f3eedd69
KD		 3401 return _scsih_check_for_pending_tm(ioc, smid);
3402}
3403
3404/**
3405 * _scsih_check_for_pending_tm - check for pending task management
3406 * @ioc: per adapter object
3407 * @smid: system request message index
3408 *
3409 * This will check delayed target reset list, and feed the
3410 * next reqeust.
3411 *
3412 * Return 1 meaning mf should be freed from _base_interrupt
3413 * 0 means the mf is freed from this function.
3414 */
3415static u8
3416_scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3417{
3418 struct _tr_list *delayed_tr;
3419
3420 if (!list_empty(&ioc->delayed_tr_volume_list)) {
3421 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
3422 struct _tr_list, list);
3423 mpt2sas_base_free_smid(ioc, smid);
3424 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
3425 list_del(&delayed_tr->list);
3426 kfree(delayed_tr);
3427 return 0;
3428 }
3429
1278b11f
KD		 3430 if (!list_empty(&ioc->delayed_tr_list)) {
3431 delayed_tr = list_entry(ioc->delayed_tr_list.next,
3432 struct _tr_list, list);
3433 mpt2sas_base_free_smid(ioc, smid);
3434 _scsih_tm_tr_send(ioc, delayed_tr->handle);
3435 list_del(&delayed_tr->list);
3436 kfree(delayed_tr);
f3eedd69 3437 return 0;
1278b11f 3438 }
f3eedd69 3439
1278b11f 3440 return 1;
77e63ed4
KD		 3441}
3442
635374e7
EM		 3443/**
3444 * _scsih_check_topo_delete_events - sanity check on topo events
3445 * @ioc: per adapter object
3446 * @event_data: the event data payload
3447 *
3448 * This routine added to better handle cable breaker.
3449 *
25985edc 3450 * This handles the case where driver receives multiple expander
635374e7
EM		 3451 * add and delete events in a single shot. When there is a delete event
3452 * the routine will void any pending add events waiting in the event queue.
3453 *
3454 * Return nothing.
3455 */
3456static void
3457_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
3458 Mpi2EventDataSasTopologyChangeList_t *event_data)
3459{
3460 struct fw_event_work *fw_event;
3461 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
3462 u16 expander_handle;
3463 struct _sas_node *sas_expander;
3464 unsigned long flags;
77e63ed4
KD		 3465 int i, reason_code;
3466 u16 handle;
3467
3468 for (i = 0 ; i < event_data->NumEntries; i++) {
77e63ed4
KD		 3469 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3470 if (!handle)
3471 continue;
3472 reason_code = event_data->PHY[i].PhyStatus &
3473 MPI2_EVENT_SAS_TOPO_RC_MASK;
3474 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
3475 _scsih_tm_tr_send(ioc, handle);
3476 }
635374e7
EM		 3477
3478 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3479 if (expander_handle < ioc->sas_hba.num_phys) {
3480 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3481 return;
3482 }
09da0b32 3483 if (event_data->ExpStatus ==
3484 MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
3485 /* put expander attached devices into blocking state */
635374e7
EM		 3486 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3487 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3488 expander_handle);
635374e7 3489 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
09da0b32 3490 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3491 do {
3492 handle = find_first_bit(ioc->blocking_handles,
3493 ioc->facts.MaxDevHandle);
3494 if (handle < ioc->facts.MaxDevHandle)
3495 _scsih_block_io_device(ioc, handle);
3496 } while (test_and_clear_bit(handle, ioc->blocking_handles));
635374e7
EM		 3497 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
3498 _scsih_block_io_to_children_attached_directly(ioc, event_data);
3499
3500 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3501 return;
3502
3503 /* mark ignore flag for pending events */
3504 spin_lock_irqsave(&ioc->fw_event_lock, flags);
3505 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
3506 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
3507 fw_event->ignore)
3508 continue;
3509 local_event_data = fw_event->event_data;
3510 if (local_event_data->ExpStatus ==
3511 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3512 local_event_data->ExpStatus ==
3513 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3514 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3515 expander_handle) {
eabb08ad 3516 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 3517 "setting ignoring flag\n", ioc->name));
3518 fw_event->ignore = 1;
3519 }
3520 }
3521 }
3522 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3523}
3524
f3eedd69
KD		 3525/**
3526 * _scsih_set_volume_delete_flag - setting volume delete flag
3527 * @ioc: per adapter object
3528 * @handle: device handle
3529 *
3530 * This
3531 * Return nothing.
3532 */
3533static void
3534_scsih_set_volume_delete_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3535{
3536 struct _raid_device *raid_device;
3537 struct MPT2SAS_TARGET *sas_target_priv_data;
3538 unsigned long flags;
3539
3540 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3541 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3542 if (raid_device && raid_device->starget &&
3543 raid_device->starget->hostdata) {
3544 sas_target_priv_data =
3545 raid_device->starget->hostdata;
3546 sas_target_priv_data->deleted = 1;
3547 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3548 "setting delete flag: handle(0x%04x), "
3549 "wwid(0x%016llx)\n", ioc->name, handle,
3550 (unsigned long long) raid_device->wwid));
3551 }
3552 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3553}
3554
3555/**
3556 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3557 * @handle: input handle
3558 * @a: handle for volume a
3559 * @b: handle for volume b
3560 *
3561 * IR firmware only supports two raid volumes. The purpose of this
3562 * routine is to set the volume handle in either a or b. When the given
3563 * input handle is non-zero, or when a and b have not been set before.
3564 */
3565static void
3566_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3567{
3568 if (!handle || handle == *a || handle == *b)
3569 return;
3570 if (!*a)
3571 *a = handle;
3572 else if (!*b)
3573 *b = handle;
3574}
3575
3576/**
3577 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3578 * @ioc: per adapter object
3579 * @event_data: the event data payload
3580 * Context: interrupt time.
3581 *
3582 * This routine will send target reset to volume, followed by target
3583 * resets to the PDs. This is called when a PD has been removed, or
3584 * volume has been deleted or removed. When the target reset is sent
3585 * to volume, the PD target resets need to be queued to start upon
3586 * completion of the volume target reset.
3587 *
3588 * Return nothing.
3589 */
3590static void
3591_scsih_check_ir_config_unhide_events(struct MPT2SAS_ADAPTER *ioc,
3592 Mpi2EventDataIrConfigChangeList_t *event_data)
3593{
3594 Mpi2EventIrConfigElement_t *element;
3595 int i;
3596 u16 handle, volume_handle, a, b;
3597 struct _tr_list *delayed_tr;
3598
3599 a = 0;
3600 b = 0;
3601
0bdccdb0
KD		 3602 if (ioc->is_warpdrive)
3603 return;
3604
f3eedd69
KD		 3605 /* Volume Resets for Deleted or Removed */
3606 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3607 for (i = 0; i < event_data->NumElements; i++, element++) {
3608 if (element->ReasonCode ==
3609 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3610 element->ReasonCode ==
3611 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3612 volume_handle = le16_to_cpu(element->VolDevHandle);
3613 _scsih_set_volume_delete_flag(ioc, volume_handle);
3614 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3615 }
3616 }
3617
3618 /* Volume Resets for UNHIDE events */
3619 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3620 for (i = 0; i < event_data->NumElements; i++, element++) {
3621 if (le32_to_cpu(event_data->Flags) &
3622 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3623 continue;
3624 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3625 volume_handle = le16_to_cpu(element->VolDevHandle);
3626 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3627 }
3628 }
3629
3630 if (a)
3631 _scsih_tm_tr_volume_send(ioc, a);
3632 if (b)
3633 _scsih_tm_tr_volume_send(ioc, b);
3634
3635 /* PD target resets */
3636 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3637 for (i = 0; i < event_data->NumElements; i++, element++) {
3638 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3639 continue;
3640 handle = le16_to_cpu(element->PhysDiskDevHandle);
3641 volume_handle = le16_to_cpu(element->VolDevHandle);
3642 clear_bit(handle, ioc->pd_handles);
3643 if (!volume_handle)
3644 _scsih_tm_tr_send(ioc, handle);
3645 else if (volume_handle == a || volume_handle == b) {
3646 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3647 BUG_ON(!delayed_tr);
3648 INIT_LIST_HEAD(&delayed_tr->list);
3649 delayed_tr->handle = handle;
3650 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3651 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3652 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3653 handle));
3654 } else
3655 _scsih_tm_tr_send(ioc, handle);
3656 }
3657}
3658
3659
3660/**
3661 * _scsih_check_volume_delete_events - set delete flag for volumes
3662 * @ioc: per adapter object
3663 * @event_data: the event data payload
3664 * Context: interrupt time.
3665 *
3666 * This will handle the case when the cable connected to entire volume is
3667 * pulled. We will take care of setting the deleted flag so normal IO will
3668 * not be sent.
3669 *
3670 * Return nothing.
3671 */
3672static void
3673_scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
3674 Mpi2EventDataIrVolume_t *event_data)
3675{
3676 u32 state;
3677
3678 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3679 return;
3680 state = le32_to_cpu(event_data->NewValue);
3681 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3682 MPI2_RAID_VOL_STATE_FAILED)
3683 _scsih_set_volume_delete_flag(ioc,
3684 le16_to_cpu(event_data->VolDevHandle));
3685}
3686
635374e7
EM		 3687/**
3688 * _scsih_flush_running_cmds - completing outstanding commands.
3689 * @ioc: per adapter object
3690 *
3691 * The flushing out of all pending scmd commands following host reset,
3692 * where all IO is dropped to the floor.
3693 *
3694 * Return nothing.
3695 */
3696static void
3697_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
3698{
3699 struct scsi_cmnd *scmd;
3700 u16 smid;
3701 u16 count = 0;
3702
595bb0bd 3703 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
ec07a053 3704 scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
635374e7
EM		 3705 if (!scmd)
3706 continue;
3707 count++;
3708 mpt2sas_base_free_smid(ioc, smid);
3709 scsi_dma_unmap(scmd);
3cb5469a
EM		 3710 if (ioc->pci_error_recovery)
3711 scmd->result = DID_NO_CONNECT << 16;
3712 else
3713 scmd->result = DID_RESET << 16;
635374e7
EM		 3714 scmd->scsi_done(scmd);
3715 }
3716 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
3717 ioc->name, count));
3718}
3719
3c621b3e
EM		 3720/**
3721 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3722 * @scmd: pointer to scsi command object
3723 * @mpi_request: pointer to the SCSI_IO reqest message frame
3724 *
3725 * Supporting protection 1 and 3.
3726 *
3727 * Returns nothing
3728 */
3729static void
3730_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
3731{
3732 u16 eedp_flags;
3733 unsigned char prot_op = scsi_get_prot_op(scmd);
3734 unsigned char prot_type = scsi_get_prot_type(scmd);
3735
d334aa79 3736 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
3c621b3e
EM		 3737 return;
3738
3739 if (prot_op == SCSI_PROT_READ_STRIP)
3740 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3741 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3742 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3743 else
3744 return;
3745
3c621b3e
EM		 3746 switch (prot_type) {
3747 case SCSI_PROT_DIF_TYPE1:
756aca7e 3748 case SCSI_PROT_DIF_TYPE2:
3c621b3e
EM		 3749
3750 /*
3751 * enable ref/guard checking
3752 * auto increment ref tag
3753 */
463217bf 3754 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3c621b3e
EM		 3755 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3756 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3757 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3758 cpu_to_be32(scsi_get_lba(scmd));
d334aa79
EM		 3759 break;
3760
3c621b3e
EM		 3761 case SCSI_PROT_DIF_TYPE3:
3762
3763 /*
3764 * enable guard checking
3765 */
463217bf 3766 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3c621b3e
EM		 3767 break;
3768 }
463217bf
KD		 3769 mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
3770 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
3c621b3e
EM		 3771}
3772
3773/**
3774 * _scsih_eedp_error_handling - return sense code for EEDP errors
3775 * @scmd: pointer to scsi command object
3776 * @ioc_status: ioc status
3777 *
3778 * Returns nothing
3779 */
3780static void
3781_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3782{
3783 u8 ascq;
3c621b3e
EM		 3784
3785 switch (ioc_status) {
3786 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3787 ascq = 0x01;
3788 break;
3789 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3790 ascq = 0x02;
3791 break;
3792 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3793 ascq = 0x03;
3794 break;
3795 default:
3796 ascq = 0x00;
3797 break;
3798 }
3799
9b5cd132
MP		 3800 scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10, ascq);
3801 scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
3c621b3e
EM		 3802 SAM_STAT_CHECK_CONDITION;
3803}
3804
0bdccdb0
KD		 3805/**
3806 * _scsih_scsi_direct_io_get - returns direct io flag
3807 * @ioc: per adapter object
3808 * @smid: system request message index
3809 *
3810 * Returns the smid stored scmd pointer.
3811 */
3812static inline u8
3813_scsih_scsi_direct_io_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
3814{
3815 return ioc->scsi_lookup[smid - 1].direct_io;
3816}
3817
3818/**
3819 * _scsih_scsi_direct_io_set - sets direct io flag
3820 * @ioc: per adapter object
3821 * @smid: system request message index
3822 * @direct_io: Zero or non-zero value to set in the direct_io flag
3823 *
3824 * Returns Nothing.
3825 */
3826static inline void
3827_scsih_scsi_direct_io_set(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 direct_io)
3828{
3829 ioc->scsi_lookup[smid - 1].direct_io = direct_io;
3830}
3831
3832
3833/**
3834 * _scsih_setup_direct_io - setup MPI request for WARPDRIVE Direct I/O
3835 * @ioc: per adapter object
3836 * @scmd: pointer to scsi command object
3837 * @raid_device: pointer to raid device data structure
3838 * @mpi_request: pointer to the SCSI_IO reqest message frame
3839 * @smid: system request message index
3840 *
3841 * Returns nothing
3842 */
3843static void
3844_scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3845 struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request,
3846 u16 smid)
3847{
3848 u32 v_lba, p_lba, stripe_off, stripe_unit, column, io_size;
3849 u32 stripe_sz, stripe_exp;
ba96bd0b 3850 u8 num_pds, *cdb_ptr, i;
0bdccdb0 3851 u8 cdb0 = scmd->cmnd[0];
ba96bd0b 3852 u64 v_llba;
0bdccdb0
KD		 3853
3854 /*
3855 * Try Direct I/O to RAID memeber disks
3856 */
3857 if (cdb0 == READ_16 || cdb0 == READ_10 ||
3858 cdb0 == WRITE_16 || cdb0 == WRITE_10) {
3859 cdb_ptr = mpi_request->CDB.CDB32;
3860
3861 if ((cdb0 < READ_16) || !(cdb_ptr[2] | cdb_ptr[3] | cdb_ptr[4]
3862 | cdb_ptr[5])) {
ba96bd0b 3863 io_size = scsi_bufflen(scmd) >>
3864 raid_device->block_exponent;
3865 i = (cdb0 < READ_16) ? 2 : 6;
0bdccdb0 3866 /* get virtual lba */
ba96bd0b 3867 v_lba = be32_to_cpu(*(__be32 *)(&cdb_ptr[i]));
0bdccdb0
KD		 3868
3869 if (((u64)v_lba + (u64)io_size - 1) <=
3870 (u32)raid_device->max_lba) {
3871 stripe_sz = raid_device->stripe_sz;
3872 stripe_exp = raid_device->stripe_exponent;
3873 stripe_off = v_lba & (stripe_sz - 1);
3874
3875 /* Check whether IO falls within a stripe */
3876 if ((stripe_off + io_size) <= stripe_sz) {
3877 num_pds = raid_device->num_pds;
3878 p_lba = v_lba >> stripe_exp;
3879 stripe_unit = p_lba / num_pds;
3880 column = p_lba % num_pds;
3881 p_lba = (stripe_unit << stripe_exp) +
3882 stripe_off;
3883 mpi_request->DevHandle =
3884 cpu_to_le16(raid_device->
3885 pd_handle[column]);
ba96bd0b 3886 (*(__be32 *)(&cdb_ptr[i])) =
3887 cpu_to_be32(p_lba);
3888 /*
3889 * WD: To indicate this I/O is directI/O
3890 */
3891 _scsih_scsi_direct_io_set(ioc, smid, 1);
3892 }
3893 }
3894 } else {
3895 io_size = scsi_bufflen(scmd) >>
3896 raid_device->block_exponent;
3897 /* get virtual lba */
3898 v_llba = be64_to_cpu(*(__be64 *)(&cdb_ptr[2]));
3899
3900 if ((v_llba + (u64)io_size - 1) <=
3901 raid_device->max_lba) {
3902 stripe_sz = raid_device->stripe_sz;
3903 stripe_exp = raid_device->stripe_exponent;
3904 stripe_off = (u32) (v_llba & (stripe_sz - 1));
3905
3906 /* Check whether IO falls within a stripe */
3907 if ((stripe_off + io_size) <= stripe_sz) {
3908 num_pds = raid_device->num_pds;
3909 p_lba = (u32)(v_llba >> stripe_exp);
3910 stripe_unit = p_lba / num_pds;
3911 column = p_lba % num_pds;
3912 p_lba = (stripe_unit << stripe_exp) +
3913 stripe_off;
3914 mpi_request->DevHandle =
3915 cpu_to_le16(raid_device->
3916 pd_handle[column]);
3917 (*(__be64 *)(&cdb_ptr[2])) =
3918 cpu_to_be64((u64)p_lba);
0bdccdb0
KD		 3919 /*
3920 * WD: To indicate this I/O is directI/O
3921 */
3922 _scsih_scsi_direct_io_set(ioc, smid, 1);
3923 }
3924 }
3925 }
3926 }
3927}
3928
635374e7 3929/**
d5d135b3 3930 * _scsih_qcmd - main scsi request entry point
635374e7
EM		 3931 * @scmd: pointer to scsi command object
3932 * @done: function pointer to be invoked on completion
3933 *
3934 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3935 *
3936 * Returns 0 on success. If there's a failure, return either:
3937 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3938 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3939 */
3940static int
f281233d 3941_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
635374e7
EM		 3942{
3943 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
3944 struct MPT2SAS_DEVICE *sas_device_priv_data;
3945 struct MPT2SAS_TARGET *sas_target_priv_data;
0bdccdb0 3946 struct _raid_device *raid_device;
635374e7
EM		 3947 Mpi2SCSIIORequest_t *mpi_request;
3948 u32 mpi_control;
3949 u16 smid;
635374e7
EM		 3950
3951 scmd->scsi_done = done;
3952 sas_device_priv_data = scmd->device->hostdata;
130b958a 3953 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
635374e7
EM		 3954 scmd->result = DID_NO_CONNECT << 16;
3955 scmd->scsi_done(scmd);
3956 return 0;
3957 }
3958
7821578c 3959 if (ioc->pci_error_recovery || ioc->remove_host) {
3cb5469a
EM		 3960 scmd->result = DID_NO_CONNECT << 16;
3961 scmd->scsi_done(scmd);
3962 return 0;
3963 }
3964
635374e7 3965 sas_target_priv_data = sas_device_priv_data->sas_target;
130b958a
KD		 3966 /* invalid device handle */
3967 if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
635374e7
EM		 3968 scmd->result = DID_NO_CONNECT << 16;
3969 scmd->scsi_done(scmd);
3970 return 0;
3971 }
3972
130b958a
KD		 3973 /* host recovery or link resets sent via IOCTLs */
3974 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
635374e7 3975 return SCSI_MLQUEUE_HOST_BUSY;
65155b37 3976 /* device busy with task management */
130b958a
KD		 3977 else if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
3978 return SCSI_MLQUEUE_DEVICE_BUSY;
3979 /* device has been deleted */
3980 else if (sas_target_priv_data->deleted) {
3981 scmd->result = DID_NO_CONNECT << 16;
3982 scmd->scsi_done(scmd);
3983 return 0;
3984 }
635374e7
EM		 3985
3986 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3987 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3988 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3989 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3990 else
3991 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3992
3993 /* set tags */
3994 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3995 if (scmd->device->tagged_supported) {
3996 if (scmd->device->ordered_tags)
3997 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3998 else
3999 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
4000 } else
48ba2efc 4001 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
635374e7
EM		 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 5817 mutex_lock(&ioc->tm_cmds.mutex);
c3a634bf
RS		 5818 pr_info(MPT2SAS_FMT
5819 "%s: enter: phy number(%d), width(%d)\n",
5820 ioc->name, __func__, event_data->PhyNum,
5821 event_data->PortWidth);
f93213de
KD		 5822
5823 _scsih_block_io_all_device(ioc);
635374e7 5824
ec07a053 5825 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
f93213de
KD		 5826 mpi_reply = ioc->tm_cmds.reply;
5827broadcast_aen_retry:
5828
5829 /* sanity checks for retrying this loop */
5830 if (max_retries++ == 5) {
5831 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: giving up\n",
5832 ioc->name, __func__));
5833 goto out;
5834 } else if (max_retries > 1)
5835 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: %d retry\n",
5836 ioc->name, __func__, max_retries - 1));
5837
635374e7
EM		 5838 termination_count = 0;
5839 query_count = 0;
595bb0bd 5840 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
921cd802 5841 if (ioc->shost_recovery)
f93213de 5842 goto out;
635374e7
EM		 5843 scmd = _scsih_scsi_lookup_get(ioc, smid);
5844 if (!scmd)
5845 continue;
ec07a053
KD		 5846 sdev = scmd->device;
5847 sas_device_priv_data = sdev->hostdata;
635374e7
EM		 5848 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5849 continue;
5850 /* skip hidden raid components */
5851 if (sas_device_priv_data->sas_target->flags &
5852 MPT_TARGET_FLAGS_RAID_COMPONENT)
5853 continue;
5854 /* skip volumes */
5855 if (sas_device_priv_data->sas_target->flags &
5856 MPT_TARGET_FLAGS_VOLUME)
5857 continue;
5858
5859 handle = sas_device_priv_data->sas_target->handle;
5860 lun = sas_device_priv_data->lun;
5861 query_count++;
5862
921cd802 5863 if (ioc->shost_recovery)
f93213de
KD		 5864 goto out;
5865
ec07a053 5866 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
f93213de
KD		 5867 r = mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5868 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
5869 TM_MUTEX_OFF);
5870 if (r == FAILED) {
5871 sdev_printk(KERN_WARNING, sdev,
5872 "mpt2sas_scsih_issue_tm: FAILED when sending "
5873 "QUERY_TASK: scmd(%p)\n", scmd);
5874 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5875 goto broadcast_aen_retry;
5876 }
463217bf
KD		 5877 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5878 & MPI2_IOCSTATUS_MASK;
f93213de
KD		 5879 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5880 sdev_printk(KERN_WARNING, sdev, "query task: FAILED "
5881 "with IOCSTATUS(0x%04x), scmd(%p)\n", ioc_status,
5882 scmd);
5883 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5884 goto broadcast_aen_retry;
5885 }
5886
5887 /* see if IO is still owned by IOC and target */
5888 if (mpi_reply->ResponseCode ==
635374e7
EM		 5889 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5890 mpi_reply->ResponseCode ==
f93213de 5891 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
ec07a053 5892 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
635374e7 5893 continue;
ec07a053 5894 }
f93213de
KD		 5895 task_abort_retries = 0;
5896 tm_retry:
5897 if (task_abort_retries++ == 60) {
5898 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
5899 "%s: ABORT_TASK: giving up\n", ioc->name,
5900 __func__));
5901 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
5902 goto broadcast_aen_retry;
5903 }
5904
921cd802 5905 if (ioc->shost_recovery)
f93213de
KD		 5906 goto out_no_lock;
5907
ec07a053
KD		 5908 r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
5909 sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
f93213de
KD		 5910 scmd->serial_number, TM_MUTEX_OFF);
5911 if (r == FAILED) {
5912 sdev_printk(KERN_WARNING, sdev,
5913 "mpt2sas_scsih_issue_tm: ABORT_TASK: FAILED : "
ec07a053 5914 "scmd(%p)\n", scmd);
f93213de
KD		 5915 goto tm_retry;
5916 }
5917
5918 if (task_abort_retries > 1)
5919 sdev_printk(KERN_WARNING, sdev,
5920 "mpt2sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
5921 " scmd(%p)\n",
5922 task_abort_retries - 1, scmd);
5923
635374e7 5924 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
ec07a053 5925 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
635374e7 5926 }
f93213de
KD		 5927
5928 if (ioc->broadcast_aen_pending) {
5929 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: loop back due to"
5930 " pending AEN\n", ioc->name, __func__));
5931 ioc->broadcast_aen_pending = 0;
5932 goto broadcast_aen_retry;
5933 }
5934
5935 out:
ec07a053 5936 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
f93213de 5937 out_no_lock:
635374e7 5938
f93213de 5939 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
635374e7
EM		 5940 "%s - exit, query_count = %d termination_count = %d\n",
5941 ioc->name, __func__, query_count, termination_count));
f93213de
KD		 5942
5943 ioc->broadcast_aen_busy = 0;
921cd802 5944 if (!ioc->shost_recovery)
f93213de
KD		 5945 _scsih_ublock_io_all_device(ioc);
5946 mutex_unlock(&ioc->tm_cmds.mutex);
635374e7
EM		 5947}
5948
5949/**
5950 * _scsih_sas_discovery_event - handle discovery events
5951 * @ioc: per adapter object
7b936b02 5952 * @fw_event: The fw_event_work object
635374e7
EM		 5953 * Context: user.
5954 *
5955 * Return nothing.
5956 */
5957static void
7b936b02
KD		 5958_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
5959 struct fw_event_work *fw_event)
635374e7 5960{
7b936b02
KD		 5961 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5962
635374e7
EM		 5963#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5964 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
eabb08ad 5965 printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
635374e7
EM		 5966 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5967 "start" : "stop");
5968 if (event_data->DiscoveryStatus)
595bb0bd
KD		 5969 printk("discovery_status(0x%08x)",
5970 le32_to_cpu(event_data->DiscoveryStatus));
635374e7
EM		 5971 printk("\n");
5972 }
5973#endif
5974
5975 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
4b193175 5976 !ioc->sas_hba.num_phys) {
5977 if (disable_discovery > 0 && ioc->shost_recovery) {
5978 /* Wait for the reset to complete */
5979 while (ioc->shost_recovery)
5980 ssleep(1);
5981 }
635374e7 5982 _scsih_sas_host_add(ioc);
4b193175 5983 }
635374e7
EM		 5984}
5985
5986/**
5987 * _scsih_reprobe_lun - reprobing lun
5988 * @sdev: scsi device struct
5989 * @no_uld_attach: sdev->no_uld_attach flag setting
5990 *
5991 **/
5992static void
5993_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5994{
5995 int rc;
5996
5997 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5998 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5999 sdev->no_uld_attach ? "hidding" : "exposing");
6000 rc = scsi_device_reprobe(sdev);
6001}
6002
635374e7
EM		 6003/**
6004 * _scsih_sas_volume_add - add new volume
6005 * @ioc: per adapter object
6006 * @element: IR config element data
6007 * Context: user.
6008 *
6009 * Return nothing.
6010 */
6011static void
6012_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
6013 Mpi2EventIrConfigElement_t *element)
6014{
6015 struct _raid_device *raid_device;
6016 unsigned long flags;
6017 u64 wwid;
6018 u16 handle = le16_to_cpu(element->VolDevHandle);
6019 int rc;
6020
635374e7
EM		 6021 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
6022 if (!wwid) {
6023 printk(MPT2SAS_ERR_FMT
6024 "failure at %s:%d/%s()!\n", ioc->name,
6025 __FILE__, __LINE__, __func__);
6026 return;
6027 }
6028
6029 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6030 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
6031 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6032
6033 if (raid_device)
6034 return;
6035
6036 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6037 if (!raid_device) {
6038 printk(MPT2SAS_ERR_FMT
6039 "failure at %s:%d/%s()!\n", ioc->name,
6040 __FILE__, __LINE__, __func__);
6041 return;
6042 }
6043
6044 raid_device->id = ioc->sas_id++;
6045 raid_device->channel = RAID_CHANNEL;
6046 raid_device->handle = handle;
6047 raid_device->wwid = wwid;
6048 _scsih_raid_device_add(ioc, raid_device);
921cd802 6049 if (!ioc->wait_for_discovery_to_complete) {
635374e7
EM		 6050 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6051 raid_device->id, 0);
6052 if (rc)
6053 _scsih_raid_device_remove(ioc, raid_device);
09da0b32 6054 } else {
6055 spin_lock_irqsave(&ioc->raid_device_lock, flags);
635374e7 6056 _scsih_determine_boot_device(ioc, raid_device, 1);
09da0b32 6057 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6058 }
635374e7
EM		 6059}
6060
6061/**
6062 * _scsih_sas_volume_delete - delete volume
6063 * @ioc: per adapter object
f3eedd69 6064 * @handle: volume device handle
635374e7
EM		 6065 * Context: user.
6066 *
6067 * Return nothing.
6068 */
6069static void
f3eedd69 6070_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
635374e7
EM		 6071{
6072 struct _raid_device *raid_device;
635374e7
EM		 6073 unsigned long flags;
6074 struct MPT2SAS_TARGET *sas_target_priv_data;
09da0b32 6075 struct scsi_target *starget = NULL;
635374e7 6076
635374e7
EM		 6077 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6078 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
09da0b32 6079 if (raid_device) {
6080 if (raid_device->starget) {
6081 starget = raid_device->starget;
6082 sas_target_priv_data = starget->hostdata;
6083 sas_target_priv_data->deleted = 1;
6084 }
6085 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
6086 "(0x%016llx)\n", ioc->name, raid_device->handle,
6087 (unsigned long long) raid_device->wwid);
6088 list_del(&raid_device->list);
6089 kfree(raid_device);
635374e7 6090 }
09da0b32 6091 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6092 if (starget)
6093 scsi_remove_target(&starget->dev);
635374e7
EM		 6094}
6095
6096/**
6097 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
6098 * @ioc: per adapter object
6099 * @element: IR config element data
6100 * Context: user.
6101 *
6102 * Return nothing.
6103 */
6104static void
6105_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
6106 Mpi2EventIrConfigElement_t *element)
6107{
6108 struct _sas_device *sas_device;
09da0b32 6109 struct scsi_target *starget = NULL;
6110 struct MPT2SAS_TARGET *sas_target_priv_data;
635374e7
EM		 6111 unsigned long flags;
6112 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6113
6114 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6115 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
09da0b32 6116 if (sas_device) {
6117 sas_device->volume_handle = 0;
6118 sas_device->volume_wwid = 0;
6119 clear_bit(handle, ioc->pd_handles);
6120 if (sas_device->starget && sas_device->starget->hostdata) {
6121 starget = sas_device->starget;
6122 sas_target_priv_data = starget->hostdata;
6123 sas_target_priv_data->flags &=
6124 ~MPT_TARGET_FLAGS_RAID_COMPONENT;
6125 }
6126 }
635374e7
EM		 6127 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6128 if (!sas_device)
6129 return;
6130
6131 /* exposing raid component */
09da0b32 6132 if (starget)
6133 starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
635374e7
EM		 6134}
6135
6136/**
6137 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
6138 * @ioc: per adapter object
6139 * @element: IR config element data
6140 * Context: user.
6141 *
6142 * Return nothing.
6143 */
6144static void
6145_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
6146 Mpi2EventIrConfigElement_t *element)
6147{
6148 struct _sas_device *sas_device;
09da0b32 6149 struct scsi_target *starget = NULL;
6150 struct MPT2SAS_TARGET *sas_target_priv_data;
635374e7
EM		 6151 unsigned long flags;
6152 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
09da0b32 6153 u16 volume_handle = 0;
6154 u64 volume_wwid = 0;
6155
6156 mpt2sas_config_get_volume_handle(ioc, handle, &volume_handle);
6157 if (volume_handle)
6158 mpt2sas_config_get_volume_wwid(ioc, volume_handle,
6159 &volume_wwid);
635374e7
EM		 6160
6161 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6162 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
09da0b32 6163 if (sas_device) {
6164 set_bit(handle, ioc->pd_handles);
6165 if (sas_device->starget && sas_device->starget->hostdata) {
6166 starget = sas_device->starget;
6167 sas_target_priv_data = starget->hostdata;
6168 sas_target_priv_data->flags |=
6169 MPT_TARGET_FLAGS_RAID_COMPONENT;
6170 sas_device->volume_handle = volume_handle;
6171 sas_device->volume_wwid = volume_wwid;
6172 }
6173 }
635374e7
EM		 6174 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6175 if (!sas_device)
6176 return;
6177
6178 /* hiding raid component */
09da0b32 6179 if (starget)
6180 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
635374e7
EM		 6181}
6182
6183/**
6184 * _scsih_sas_pd_delete - delete pd component
6185 * @ioc: per adapter object
6186 * @element: IR config element data
6187 * Context: user.
6188 *
6189 * Return nothing.
6190 */
6191static void
6192_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
6193 Mpi2EventIrConfigElement_t *element)
6194{
635374e7
EM		 6195 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6196
09da0b32 6197 _scsih_device_remove_by_handle(ioc, handle);
635374e7
EM		 6198}
6199
6200/**
6201 * _scsih_sas_pd_add - remove pd component
6202 * @ioc: per adapter object
6203 * @element: IR config element data
6204 * Context: user.
6205 *
6206 * Return nothing.
6207 */
6208static void
6209_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
6210 Mpi2EventIrConfigElement_t *element)
6211{
6212 struct _sas_device *sas_device;
6213 unsigned long flags;
6214 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
62727a7b
KD		 6215 Mpi2ConfigReply_t mpi_reply;
6216 Mpi2SasDevicePage0_t sas_device_pg0;
6217 u32 ioc_status;
c5e039be
KD		 6218 u64 sas_address;
6219 u16 parent_handle;
635374e7 6220
f3eedd69
KD		 6221 set_bit(handle, ioc->pd_handles);
6222
635374e7
EM		 6223 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6224 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6225 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
f3eedd69 6226 if (sas_device)
62727a7b 6227 return;
62727a7b
KD		 6228
6229 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
6230 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
6231 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6232 ioc->name, __FILE__, __LINE__, __func__);
6233 return;
6234 }
6235
6236 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6237 MPI2_IOCSTATUS_MASK;
6238 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6239 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6240 ioc->name, __FILE__, __LINE__, __func__);
6241 return;
6242 }
6243
c5e039be
KD		 6244 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6245 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6246 mpt2sas_transport_update_links(ioc, sas_address, handle,
6247 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
62727a7b
KD		 6248
6249 _scsih_add_device(ioc, handle, 0, 1);
635374e7
EM		 6250}
6251
6252#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6253/**
6254 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
6255 * @ioc: per adapter object
6256 * @event_data: event data payload
6257 * Context: user.
6258 *
6259 * Return nothing.
6260 */
6261static void
6262_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
6263 Mpi2EventDataIrConfigChangeList_t *event_data)
6264{
6265 Mpi2EventIrConfigElement_t *element;
6266 u8 element_type;
6267 int i;
6268 char *reason_str = NULL, *element_str = NULL;
6269
6270 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6271
eabb08ad 6272 printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
635374e7
EM		 6273 ioc->name, (le32_to_cpu(event_data->Flags) &
6274 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
6275 "foreign" : "native", event_data->NumElements);
6276 for (i = 0; i < event_data->NumElements; i++, element++) {
6277 switch (element->ReasonCode) {
6278 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
6279 reason_str = "add";
6280 break;
6281 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
6282 reason_str = "remove";
6283 break;
6284 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
6285 reason_str = "no change";
6286 break;
6287 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
6288 reason_str = "hide";
6289 break;
6290 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
6291 reason_str = "unhide";
6292 break;
6293 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6294 reason_str = "volume_created";
6295 break;
6296 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6297 reason_str = "volume_deleted";
6298 break;
6299 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
6300 reason_str = "pd_created";
6301 break;
6302 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
6303 reason_str = "pd_deleted";
6304 break;
6305 default:
6306 reason_str = "unknown reason";
6307 break;
6308 }
6309 element_type = le16_to_cpu(element->ElementFlags) &
6310 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
6311 switch (element_type) {
6312 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
6313 element_str = "volume";
6314 break;
6315 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
6316 element_str = "phys disk";
6317 break;
6318 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
6319 element_str = "hot spare";
6320 break;
6321 default:
6322 element_str = "unknown element";
6323 break;
6324 }
eabb08ad 6325 printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
635374e7
EM		 6326 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
6327 reason_str, le16_to_cpu(element->VolDevHandle),
6328 le16_to_cpu(element->PhysDiskDevHandle),
6329 element->PhysDiskNum);
6330 }
6331}
6332#endif
6333
6334/**
6335 * _scsih_sas_ir_config_change_event - handle ir configuration change events
6336 * @ioc: per adapter object
7b936b02 6337 * @fw_event: The fw_event_work object
635374e7
EM		 6338 * Context: user.
6339 *
6340 * Return nothing.
6341 */
6342static void
7b936b02
KD		 6343_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
6344 struct fw_event_work *fw_event)
635374e7
EM		 6345{
6346 Mpi2EventIrConfigElement_t *element;
6347 int i;
62727a7b 6348 u8 foreign_config;
7b936b02 6349 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
635374e7
EM		 6350
6351#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
0bdccdb0
KD		 6352 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6353 && !ioc->hide_ir_msg)
635374e7
EM		 6354 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
6355
6356#endif
921cd802 6357
6358 if (ioc->shost_recovery)
6359 return;
6360
62727a7b
KD		 6361 foreign_config = (le32_to_cpu(event_data->Flags) &
6362 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
635374e7
EM		 6363
6364 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
6365 for (i = 0; i < event_data->NumElements; i++, element++) {
6366
6367 switch (element->ReasonCode) {
6368 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
6369 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
62727a7b
KD		 6370 if (!foreign_config)
6371 _scsih_sas_volume_add(ioc, element);
635374e7
EM		 6372 break;
6373 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
6374 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
62727a7b 6375 if (!foreign_config)
f3eedd69
KD		 6376 _scsih_sas_volume_delete(ioc,
6377 le16_to_cpu(element->VolDevHandle));
635374e7
EM		 6378 break;
6379 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
0bdccdb0
KD		 6380 if (!ioc->is_warpdrive)
6381 _scsih_sas_pd_hide(ioc, element);
635374e7
EM		 6382 break;
6383 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
0bdccdb0
KD		 6384 if (!ioc->is_warpdrive)
6385 _scsih_sas_pd_expose(ioc, element);
635374e7
EM		 6386 break;
6387 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
0bdccdb0
KD		 6388 if (!ioc->is_warpdrive)
6389 _scsih_sas_pd_add(ioc, element);
635374e7
EM		 6390 break;
6391 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
0bdccdb0
KD		 6392 if (!ioc->is_warpdrive)
6393 _scsih_sas_pd_delete(ioc, element);
635374e7
EM		 6394 break;
6395 }
6396 }
6397}
6398
6399/**
6400 * _scsih_sas_ir_volume_event - IR volume event
6401 * @ioc: per adapter object
7b936b02 6402 * @fw_event: The fw_event_work object
635374e7
EM		 6403 * Context: user.
6404 *
6405 * Return nothing.
6406 */
6407static void
7b936b02
KD		 6408_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
6409 struct fw_event_work *fw_event)
635374e7
EM		 6410{
6411 u64 wwid;
6412 unsigned long flags;
6413 struct _raid_device *raid_device;
6414 u16 handle;
6415 u32 state;
6416 int rc;
7b936b02 6417 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
635374e7 6418
921cd802 6419 if (ioc->shost_recovery)
6420 return;
6421
635374e7
EM		 6422 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
6423 return;
6424
6425 handle = le16_to_cpu(event_data->VolDevHandle);
6426 state = le32_to_cpu(event_data->NewValue);
0bdccdb0
KD		 6427 if (!ioc->hide_ir_msg)
6428 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6429 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6430 le32_to_cpu(event_data->PreviousValue), state));
635374e7 6431
635374e7
EM		 6432 switch (state) {
6433 case MPI2_RAID_VOL_STATE_MISSING:
6434 case MPI2_RAID_VOL_STATE_FAILED:
f3eedd69 6435 _scsih_sas_volume_delete(ioc, handle);
635374e7
EM		 6436 break;
6437
6438 case MPI2_RAID_VOL_STATE_ONLINE:
6439 case MPI2_RAID_VOL_STATE_DEGRADED:
6440 case MPI2_RAID_VOL_STATE_OPTIMAL:
f3eedd69
KD		 6441
6442 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6443 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
6444 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6445
635374e7
EM		 6446 if (raid_device)
6447 break;
6448
6449 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
6450 if (!wwid) {
6451 printk(MPT2SAS_ERR_FMT
6452 "failure at %s:%d/%s()!\n", ioc->name,
6453 __FILE__, __LINE__, __func__);
6454 break;
6455 }
6456
6457 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
6458 if (!raid_device) {
6459 printk(MPT2SAS_ERR_FMT
6460 "failure at %s:%d/%s()!\n", ioc->name,
6461 __FILE__, __LINE__, __func__);
6462 break;
6463 }
6464
6465 raid_device->id = ioc->sas_id++;
6466 raid_device->channel = RAID_CHANNEL;
6467 raid_device->handle = handle;
6468 raid_device->wwid = wwid;
6469 _scsih_raid_device_add(ioc, raid_device);
6470 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6471 raid_device->id, 0);
6472 if (rc)
6473 _scsih_raid_device_remove(ioc, raid_device);
6474 break;
6475
6476 case MPI2_RAID_VOL_STATE_INITIALIZING:
6477 default:
6478 break;
6479 }
6480}
6481
6482/**
6483 * _scsih_sas_ir_physical_disk_event - PD event
6484 * @ioc: per adapter object
7b936b02 6485 * @fw_event: The fw_event_work object
635374e7
EM		 6486 * Context: user.
6487 *
6488 * Return nothing.
6489 */
6490static void
7b936b02
KD		 6491_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
6492 struct fw_event_work *fw_event)
635374e7 6493{
c5e039be 6494 u16 handle, parent_handle;
635374e7
EM		 6495 u32 state;
6496 struct _sas_device *sas_device;
6497 unsigned long flags;
62727a7b
KD		 6498 Mpi2ConfigReply_t mpi_reply;
6499 Mpi2SasDevicePage0_t sas_device_pg0;
6500 u32 ioc_status;
7b936b02 6501 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
c5e039be 6502 u64 sas_address;
635374e7 6503
921cd802 6504 if (ioc->shost_recovery)
6505 return;
6506
635374e7
EM		 6507 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
6508 return;
6509
6510 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
6511 state = le32_to_cpu(event_data->NewValue);
6512
0bdccdb0
KD		 6513 if (!ioc->hide_ir_msg)
6514 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
6515 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
6516 le32_to_cpu(event_data->PreviousValue), state));
635374e7 6517
635374e7 6518 switch (state) {
635374e7
EM		 6519 case MPI2_RAID_PD_STATE_ONLINE:
6520 case MPI2_RAID_PD_STATE_DEGRADED:
6521 case MPI2_RAID_PD_STATE_REBUILDING:
6522 case MPI2_RAID_PD_STATE_OPTIMAL:
f3eedd69
KD		 6523 case MPI2_RAID_PD_STATE_HOT_SPARE:
6524
0bdccdb0
KD		 6525 if (!ioc->is_warpdrive)
6526 set_bit(handle, ioc->pd_handles);
f3eedd69
KD		 6527
6528 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6529 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
6530 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6531
6532 if (sas_device)
62727a7b 6533 return;
62727a7b
KD		 6534
6535 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6536 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
6537 handle))) {
6538 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6539 ioc->name, __FILE__, __LINE__, __func__);
6540 return;
6541 }
6542
6543 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6544 MPI2_IOCSTATUS_MASK;
6545 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
6546 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6547 ioc->name, __FILE__, __LINE__, __func__);
6548 return;
6549 }
6550
c5e039be
KD		 6551 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
6552 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
6553 mpt2sas_transport_update_links(ioc, sas_address, handle,
6554 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
62727a7b
KD		 6555
6556 _scsih_add_device(ioc, handle, 0, 1);
6557
635374e7
EM		 6558 break;
6559
62727a7b 6560 case MPI2_RAID_PD_STATE_OFFLINE:
635374e7
EM		 6561 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
6562 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
635374e7
EM		 6563 default:
6564 break;
6565 }
6566}
6567
6568#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
6569/**
6570 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
6571 * @ioc: per adapter object
6572 * @event_data: event data payload
6573 * Context: user.
6574 *
6575 * Return nothing.
6576 */
6577static void
6578_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
6579 Mpi2EventDataIrOperationStatus_t *event_data)
6580{
6581 char *reason_str = NULL;
6582
6583 switch (event_data->RAIDOperation) {
6584 case MPI2_EVENT_IR_RAIDOP_RESYNC:
6585 reason_str = "resync";
6586 break;
6587 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
6588 reason_str = "online capacity expansion";
6589 break;
6590 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
6591 reason_str = "consistency check";
6592 break;
ec6c2b43
KD		 6593 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
6594 reason_str = "background init";
6595 break;
6596 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
6597 reason_str = "make data consistent";
635374e7
EM		 6598 break;
6599 }
6600
ec6c2b43
KD		 6601 if (!reason_str)
6602 return;
6603
635374e7
EM		 6604 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
6605 "\thandle(0x%04x), percent complete(%d)\n",
6606 ioc->name, reason_str,
6607 le16_to_cpu(event_data->VolDevHandle),
6608 event_data->PercentComplete);
6609}
6610#endif
6611
6612/**
6613 * _scsih_sas_ir_operation_status_event - handle RAID operation events
6614 * @ioc: per adapter object
7b936b02 6615 * @fw_event: The fw_event_work object
635374e7
EM		 6616 * Context: user.
6617 *
6618 * Return nothing.
6619 */
6620static void
7b936b02
KD		 6621_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
6622 struct fw_event_work *fw_event)
635374e7 6623{
f7c95ef0
KD		 6624 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
6625 static struct _raid_device *raid_device;
6626 unsigned long flags;
6627 u16 handle;
6628
635374e7 6629#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
0bdccdb0
KD		 6630 if ((ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
6631 && !ioc->hide_ir_msg)
7b936b02 6632 _scsih_sas_ir_operation_status_event_debug(ioc,
f7c95ef0 6633 event_data);
635374e7 6634#endif
f7c95ef0
KD		 6635
6636 /* code added for raid transport support */
6637 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
6638
f7c95ef0 6639 spin_lock_irqsave(&ioc->raid_device_lock, flags);
09da0b32 6640 handle = le16_to_cpu(event_data->VolDevHandle);
f7c95ef0 6641 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
09da0b32 6642 if (raid_device)
f7c95ef0
KD		 6643 raid_device->percent_complete =
6644 event_data->PercentComplete;
09da0b32 6645 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
f7c95ef0 6646 }
635374e7
EM		 6647}
6648
14695853
KD		 6649/**
6650 * _scsih_prep_device_scan - initialize parameters prior to device scan
6651 * @ioc: per adapter object
6652 *
6653 * Set the deleted flag prior to device scan. If the device is found during
6654 * the scan, then we clear the deleted flag.
6655 */
6656static void
6657_scsih_prep_device_scan(struct MPT2SAS_ADAPTER *ioc)
6658{
6659 struct MPT2SAS_DEVICE *sas_device_priv_data;
6660 struct scsi_device *sdev;
6661
6662 shost_for_each_device(sdev, ioc->shost) {
6663 sas_device_priv_data = sdev->hostdata;
6664 if (sas_device_priv_data && sas_device_priv_data->sas_target)
6665 sas_device_priv_data->sas_target->deleted = 1;
6666 }
6667}
6668
635374e7
EM		 6669/**
6670 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6671 * @ioc: per adapter object
6672 * @sas_address: sas address
6673 * @slot: enclosure slot id
6674 * @handle: device handle
6675 *
6676 * After host reset, find out whether devices are still responding.
6677 * Used in _scsi_remove_unresponsive_sas_devices.
6678 *
6679 * Return nothing.
6680 */
6681static void
6682_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6683 u16 slot, u16 handle)
6684{
0bdccdb0 6685 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
635374e7
EM		 6686 struct scsi_target *starget;
6687 struct _sas_device *sas_device;
6688 unsigned long flags;
6689
6690 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6691 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6692 if (sas_device->sas_address == sas_address &&
0bdccdb0 6693 sas_device->slot == slot) {
635374e7 6694 sas_device->responding = 1;
77e63ed4 6695 starget = sas_device->starget;
14695853
KD		 6696 if (starget && starget->hostdata) {
6697 sas_target_priv_data = starget->hostdata;
6698 sas_target_priv_data->tm_busy = 0;
6699 sas_target_priv_data->deleted = 0;
6700 } else
6701 sas_target_priv_data = NULL;
0bdccdb0
KD		 6702 if (starget)
6703 starget_printk(KERN_INFO, starget,
6704 "handle(0x%04x), sas_addr(0x%016llx), "
6705 "enclosure logical id(0x%016llx), "
6706 "slot(%d)\n", handle,
6707 (unsigned long long)sas_device->sas_address,
6708 (unsigned long long)
6709 sas_device->enclosure_logical_id,
6710 sas_device->slot);
635374e7
EM		 6711 if (sas_device->handle == handle)
6712 goto out;
6713 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6714 sas_device->handle);
6715 sas_device->handle = handle;
14695853
KD		 6716 if (sas_target_priv_data)
6717 sas_target_priv_data->handle = handle;
635374e7
EM		 6718 goto out;
6719 }
6720 }
6721 out:
6722 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6723}
6724
6725/**
6726 * _scsih_search_responding_sas_devices -
6727 * @ioc: per adapter object
6728 *
6729 * After host reset, find out whether devices are still responding.
6730 * If not remove.
6731 *
6732 * Return nothing.
6733 */
6734static void
6735_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
6736{
6737 Mpi2SasDevicePage0_t sas_device_pg0;
6738 Mpi2ConfigReply_t mpi_reply;
6739 u16 ioc_status;
6740 __le64 sas_address;
6741 u16 handle;
6742 u32 device_info;
6743 u16 slot;
6744
921cd802 6745 printk(MPT2SAS_INFO_FMT "search for end-devices: start\n", ioc->name);
635374e7
EM		 6746
6747 if (list_empty(&ioc->sas_device_list))
921cd802 6748 goto out;
635374e7
EM		 6749
6750 handle = 0xFFFF;
6751 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6752 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
6753 handle))) {
6754 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6755 MPI2_IOCSTATUS_MASK;
1c50e8d2 6756 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
635374e7
EM		 6757 break;
6758 handle = le16_to_cpu(sas_device_pg0.DevHandle);
6759 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6760 if (!(_scsih_is_end_device(device_info)))
6761 continue;
6762 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
6763 slot = le16_to_cpu(sas_device_pg0.Slot);
6764 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
6765 handle);
6766 }
921cd802 6767out:
6768 printk(MPT2SAS_INFO_FMT "search for end-devices: complete\n",
6769 ioc->name);
635374e7
EM		 6770}
6771
6772/**
6773 * _scsih_mark_responding_raid_device - mark a raid_device as responding
6774 * @ioc: per adapter object
6775 * @wwid: world wide identifier for raid volume
6776 * @handle: device handle
6777 *
6778 * After host reset, find out whether devices are still responding.
6779 * Used in _scsi_remove_unresponsive_raid_devices.
6780 *
6781 * Return nothing.
6782 */
6783static void
6784_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
6785 u16 handle)
6786{
6787 struct MPT2SAS_TARGET *sas_target_priv_data;
6788 struct scsi_target *starget;
6789 struct _raid_device *raid_device;
6790 unsigned long flags;
6791
6792 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6793 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
6794 if (raid_device->wwid == wwid && raid_device->starget) {
14695853
KD		 6795 starget = raid_device->starget;
6796 if (starget && starget->hostdata) {
6797 sas_target_priv_data = starget->hostdata;
6798 sas_target_priv_data->deleted = 0;
6799 } else
6800 sas_target_priv_data = NULL;
635374e7 6801 raid_device->responding = 1;
30c43282 6802 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
635374e7
EM		 6803 starget_printk(KERN_INFO, raid_device->starget,
6804 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6805 (unsigned long long)raid_device->wwid);
0bdccdb0
KD		 6806 /*
6807 * WARPDRIVE: The handles of the PDs might have changed
6808 * across the host reset so re-initialize the
6809 * required data for Direct IO
6810 */
6811 _scsih_init_warpdrive_properties(ioc, raid_device);
09da0b32 6812 spin_lock_irqsave(&ioc->raid_device_lock, flags);
6813 if (raid_device->handle == handle) {
6814 spin_unlock_irqrestore(&ioc->raid_device_lock,
6815 flags);
30c43282 6816 return;
09da0b32 6817 }
635374e7
EM		 6818 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6819 raid_device->handle);
6820 raid_device->handle = handle;
14695853
KD		 6821 if (sas_target_priv_data)
6822 sas_target_priv_data->handle = handle;
09da0b32 6823 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
30c43282 6824 return;
635374e7
EM		 6825 }
6826 }
30c43282 6827
635374e7
EM		 6828 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6829}
6830
6831/**
6832 * _scsih_search_responding_raid_devices -
6833 * @ioc: per adapter object
6834 *
6835 * After host reset, find out whether devices are still responding.
6836 * If not remove.
6837 *
6838 * Return nothing.
6839 */
6840static void
6841_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
6842{
6843 Mpi2RaidVolPage1_t volume_pg1;
d417d1c3 6844 Mpi2RaidVolPage0_t volume_pg0;
f3eedd69 6845 Mpi2RaidPhysDiskPage0_t pd_pg0;
635374e7
EM		 6846 Mpi2ConfigReply_t mpi_reply;
6847 u16 ioc_status;
6848 u16 handle;
f3eedd69 6849 u8 phys_disk_num;
635374e7 6850
921cd802 6851 if (!ioc->ir_firmware)
6852 return;
6853
6854 printk(MPT2SAS_INFO_FMT "search for raid volumes: start\n",
6855 ioc->name);
635374e7
EM		 6856
6857 if (list_empty(&ioc->raid_device_list))
921cd802 6858 goto out;
635374e7
EM		 6859
6860 handle = 0xFFFF;
6861 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6862 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6863 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6864 MPI2_IOCSTATUS_MASK;
1c50e8d2 6865 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
635374e7
EM		 6866 break;
6867 handle = le16_to_cpu(volume_pg1.DevHandle);
d417d1c3
KD		 6868
6869 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6870 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6871 sizeof(Mpi2RaidVolPage0_t)))
6872 continue;
6873
6874 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6875 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6876 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6877 _scsih_mark_responding_raid_device(ioc,
6878 le64_to_cpu(volume_pg1.WWID), handle);
635374e7 6879 }
f3eedd69
KD		 6880
6881 /* refresh the pd_handles */
0bdccdb0
KD		 6882 if (!ioc->is_warpdrive) {
6883 phys_disk_num = 0xFF;
6884 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6885 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6886 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6887 phys_disk_num))) {
6888 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6889 MPI2_IOCSTATUS_MASK;
1c50e8d2 6890 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
0bdccdb0
KD		 6891 break;
6892 phys_disk_num = pd_pg0.PhysDiskNum;
6893 handle = le16_to_cpu(pd_pg0.DevHandle);
6894 set_bit(handle, ioc->pd_handles);
6895 }
f3eedd69 6896 }
921cd802 6897out:
6898 printk(MPT2SAS_INFO_FMT "search for responding raid volumes: "
6899 "complete\n", ioc->name);
635374e7
EM		 6900}
6901
6902/**
6903 * _scsih_mark_responding_expander - mark a expander as responding
6904 * @ioc: per adapter object
6905 * @sas_address: sas address
6906 * @handle:
6907 *
6908 * After host reset, find out whether devices are still responding.
6909 * Used in _scsi_remove_unresponsive_expanders.
6910 *
6911 * Return nothing.
6912 */
6913static void
6914_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6915 u16 handle)
6916{
6917 struct _sas_node *sas_expander;
6918 unsigned long flags;
c5e039be 6919 int i;
635374e7
EM		 6920
6921 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6922 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
c5e039be
KD		 6923 if (sas_expander->sas_address != sas_address)
6924 continue;
6925 sas_expander->responding = 1;
6926 if (sas_expander->handle == handle)
635374e7 6927 goto out;
c5e039be
KD		 6928 printk(KERN_INFO "\texpander(0x%016llx): handle changed"
6929 " from(0x%04x) to (0x%04x)!!!\n",
6930 (unsigned long long)sas_expander->sas_address,
6931 sas_expander->handle, handle);
6932 sas_expander->handle = handle;
6933 for (i = 0 ; i < sas_expander->num_phys ; i++)
6934 sas_expander->phy[i].handle = handle;
6935 goto out;
635374e7
EM		 6936 }
6937 out:
6938 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6939}
6940
6941/**
6942 * _scsih_search_responding_expanders -
6943 * @ioc: per adapter object
6944 *
6945 * After host reset, find out whether devices are still responding.
6946 * If not remove.
6947 *
6948 * Return nothing.
6949 */
6950static void
6951_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
6952{
6953 Mpi2ExpanderPage0_t expander_pg0;
6954 Mpi2ConfigReply_t mpi_reply;
6955 u16 ioc_status;
c97951ec 6956 u64 sas_address;
635374e7
EM		 6957 u16 handle;
6958
921cd802 6959 printk(MPT2SAS_INFO_FMT "search for expanders: start\n", ioc->name);
635374e7
EM		 6960
6961 if (list_empty(&ioc->sas_expander_list))
921cd802 6962 goto out;
635374e7
EM		 6963
6964 handle = 0xFFFF;
6965 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6966 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6967
6968 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6969 MPI2_IOCSTATUS_MASK;
1c50e8d2 6970 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
635374e7
EM		 6971 break;
6972
6973 handle = le16_to_cpu(expander_pg0.DevHandle);
6974 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6975 printk(KERN_INFO "\texpander present: handle(0x%04x), "
6976 "sas_addr(0x%016llx)\n", handle,
6977 (unsigned long long)sas_address);
6978 _scsih_mark_responding_expander(ioc, sas_address, handle);
6979 }
6980
921cd802 6981 out:
6982 printk(MPT2SAS_INFO_FMT "search for expanders: complete\n", ioc->name);
635374e7
EM		 6983}
6984
6985/**
f1c35e6a 6986 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
635374e7
EM		 6987 * @ioc: per adapter object
6988 *
6989 * Return nothing.
6990 */
6991static void
f1c35e6a 6992_scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
635374e7
EM		 6993{
6994 struct _sas_device *sas_device, *sas_device_next;
09da0b32 6995 struct _sas_node *sas_expander, *sas_expander_next;
635374e7 6996 struct _raid_device *raid_device, *raid_device_next;
09da0b32 6997 struct list_head tmp_list;
6998 unsigned long flags;
635374e7 6999
921cd802 7000 printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n",
7001 ioc->name);
635374e7 7002
09da0b32 7003 /* removing unresponding end devices */
7004 printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n",
7005 ioc->name);
635374e7
EM		 7006 list_for_each_entry_safe(sas_device, sas_device_next,
7007 &ioc->sas_device_list, list) {
09da0b32 7008 if (!sas_device->responding)
39af7a98 7009 mpt2sas_device_remove_by_sas_address(ioc,
7010 sas_device->sas_address);
09da0b32 7011 else
635374e7 7012 sas_device->responding = 0;
635374e7
EM		 7013 }
7014
09da0b32 7015 /* removing unresponding volumes */
7016 if (ioc->ir_firmware) {
7017 printk(MPT2SAS_INFO_FMT "removing unresponding devices: "
7018 "volumes\n", ioc->name);
7019 list_for_each_entry_safe(raid_device, raid_device_next,
7020 &ioc->raid_device_list, list) {
7021 if (!raid_device->responding)
7022 _scsih_sas_volume_delete(ioc,
7023 raid_device->handle);
7024 else
7025 raid_device->responding = 0;
635374e7 7026 }
635374e7 7027 }
09da0b32 7028 /* removing unresponding expanders */
7029 printk(MPT2SAS_INFO_FMT "removing unresponding devices: expanders\n",
7030 ioc->name);
7031 spin_lock_irqsave(&ioc->sas_node_lock, flags);
7032 INIT_LIST_HEAD(&tmp_list);
7033 list_for_each_entry_safe(sas_expander, sas_expander_next,
7034 &ioc->sas_expander_list, list) {
7035 if (!sas_expander->responding)
7036 list_move_tail(&sas_expander->list, &tmp_list);
7037 else
635374e7 7038 sas_expander->responding = 0;
09da0b32 7039 }
7040 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
7041 list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
7042 list) {
7043 list_del(&sas_expander->list);
7044 _scsih_expander_node_remove(ioc, sas_expander);
cd4e12e8 7045 }
921cd802 7046 printk(MPT2SAS_INFO_FMT "removing unresponding devices: complete\n",
7047 ioc->name);
7048 /* unblock devices */
7049 _scsih_ublock_io_all_device(ioc);
7050}
7051
7052static void
7053_scsih_refresh_expander_links(struct MPT2SAS_ADAPTER *ioc,
7054 struct _sas_node *sas_expander, u16 handle)
7055{
7056 Mpi2ExpanderPage1_t expander_pg1;
7057 Mpi2ConfigReply_t mpi_reply;
7058 int i;
7059
7060 for (i = 0 ; i < sas_expander->num_phys ; i++) {
7061 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
7062 &expander_pg1, i, handle))) {
7063 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7064 ioc->name, __FILE__, __LINE__, __func__);
7065 return;
7066 }
7067
7068 mpt2sas_transport_update_links(ioc, sas_expander->sas_address,
7069 le16_to_cpu(expander_pg1.AttachedDevHandle), i,
7070 expander_pg1.NegotiatedLinkRate >> 4);
7071 }
cd4e12e8
KD		 7072}
7073
0bdccdb0 7074/**
921cd802 7075 * _scsih_scan_for_devices_after_reset - scan for devices after host reset
0bdccdb0
KD		 7076 * @ioc: per adapter object
7077 *
7078 * Return nothing.
7079 */
7080static void
921cd802 7081_scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
0bdccdb0 7082{
921cd802 7083 Mpi2ExpanderPage0_t expander_pg0;
7084 Mpi2SasDevicePage0_t sas_device_pg0;
7085 Mpi2RaidVolPage1_t volume_pg1;
7086 Mpi2RaidVolPage0_t volume_pg0;
7087 Mpi2RaidPhysDiskPage0_t pd_pg0;
7088 Mpi2EventIrConfigElement_t element;
7089 Mpi2ConfigReply_t mpi_reply;
7090 u8 phys_disk_num;
7091 u16 ioc_status;
7092 u16 handle, parent_handle;
7093 u64 sas_address;
7094 struct _sas_device *sas_device;
7095 struct _sas_node *expander_device;
7096 static struct _raid_device *raid_device;
6241f22c 7097 u8 retry_count;
09da0b32 7098 unsigned long flags;
0bdccdb0 7099
921cd802 7100 printk(MPT2SAS_INFO_FMT "scan devices: start\n", ioc->name);
0bdccdb0 7101
921cd802 7102 _scsih_sas_host_refresh(ioc);
7103
6241f22c
SR		 7104 printk(MPT2SAS_INFO_FMT "\tscan devices: expanders start\n",
7105 ioc->name);
921cd802 7106 /* expanders */
7107 handle = 0xFFFF;
7108 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
7109 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
7110 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7111 MPI2_IOCSTATUS_MASK;
6241f22c
SR		 7112 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7113 printk(MPT2SAS_INFO_FMT "\tbreak from expander scan: "
7114 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7115 ioc->name, ioc_status,
7116 le32_to_cpu(mpi_reply.IOCLogInfo));
7117 break;
7118 }
921cd802 7119 handle = le16_to_cpu(expander_pg0.DevHandle);
09da0b32 7120 spin_lock_irqsave(&ioc->sas_node_lock, flags);
921cd802 7121 expander_device = mpt2sas_scsih_expander_find_by_sas_address(
7122 ioc, le64_to_cpu(expander_pg0.SASAddress));
09da0b32 7123 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
921cd802 7124 if (expander_device)
7125 _scsih_refresh_expander_links(ioc, expander_device,
7126 handle);
6241f22c
SR		 7127 else {
7128 printk(MPT2SAS_INFO_FMT "\tBEFORE adding expander: "
7129 "handle (0x%04x), sas_addr(0x%016llx)\n",
7130 ioc->name, handle, (unsigned long long)
7131 le64_to_cpu(expander_pg0.SASAddress));
921cd802 7132 _scsih_expander_add(ioc, handle);
6241f22c
SR		 7133 printk(MPT2SAS_INFO_FMT "\tAFTER adding expander: "
7134 "handle (0x%04x), sas_addr(0x%016llx)\n",
7135 ioc->name, handle, (unsigned long long)
7136 le64_to_cpu(expander_pg0.SASAddress));
7137 }
921cd802 7138 }
7139
6241f22c
SR		 7140 printk(MPT2SAS_INFO_FMT "\tscan devices: expanders complete\n",
7141 ioc->name);
7142
921cd802 7143 if (!ioc->ir_firmware)
7144 goto skip_to_sas;
7145
6241f22c 7146 printk(MPT2SAS_INFO_FMT "\tscan devices phys disk start\n", ioc->name);
921cd802 7147 /* phys disk */
7148 phys_disk_num = 0xFF;
7149 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
7150 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
7151 phys_disk_num))) {
7152 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7153 MPI2_IOCSTATUS_MASK;
6241f22c
SR		 7154 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7155 printk(MPT2SAS_INFO_FMT "\tbreak from phys disk scan:"
7156 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7157 ioc->name, ioc_status,
7158 le32_to_cpu(mpi_reply.IOCLogInfo));
7159 break;
7160 }
921cd802 7161 phys_disk_num = pd_pg0.PhysDiskNum;
7162 handle = le16_to_cpu(pd_pg0.DevHandle);
09da0b32 7163 spin_lock_irqsave(&ioc->sas_device_lock, flags);
921cd802 7164 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
09da0b32 7165 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
921cd802 7166 if (sas_device)
7167 continue;
7168 if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
7169 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
7170 handle) != 0)
7171 continue;
6241f22c
SR		 7172 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7173 MPI2_IOCSTATUS_MASK;
7174 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7175 printk(MPT2SAS_INFO_FMT "\tbreak from phys disk scan "
7176 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7177 ioc->name, ioc_status,
7178 le32_to_cpu(mpi_reply.IOCLogInfo));
7179 break;
7180 }
921cd802 7181 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
7182 if (!_scsih_get_sas_address(ioc, parent_handle,
7183 &sas_address)) {
6241f22c
SR		 7184 printk(MPT2SAS_INFO_FMT "\tBEFORE adding phys disk: "
7185 " handle (0x%04x), sas_addr(0x%016llx)\n",
7186 ioc->name, handle, (unsigned long long)
7187 le64_to_cpu(sas_device_pg0.SASAddress));
921cd802 7188 mpt2sas_transport_update_links(ioc, sas_address,
7189 handle, sas_device_pg0.PhyNum,
7190 MPI2_SAS_NEG_LINK_RATE_1_5);
7191 set_bit(handle, ioc->pd_handles);
6241f22c
SR		 7192 retry_count = 0;
7193 /* This will retry adding the end device.
7194 * _scsih_add_device() will decide on retries and
7195 * return "1" when it should be retried
7196 */
7197 while (_scsih_add_device(ioc, handle, retry_count++,
7198 1)) {
7199 ssleep(1);
7200 }
7201 printk(MPT2SAS_INFO_FMT "\tAFTER adding phys disk: "
7202 " handle (0x%04x), sas_addr(0x%016llx)\n",
7203 ioc->name, handle, (unsigned long long)
7204 le64_to_cpu(sas_device_pg0.SASAddress));
0bdccdb0 7205 }
921cd802 7206 }
7207
6241f22c
SR		 7208 printk(MPT2SAS_INFO_FMT "\tscan devices: phys disk complete\n",
7209 ioc->name);
7210
7211 printk(MPT2SAS_INFO_FMT "\tscan devices: volumes start\n", ioc->name);
921cd802 7212 /* volumes */
7213 handle = 0xFFFF;
7214 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
7215 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
7216 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7217 MPI2_IOCSTATUS_MASK;
6241f22c
SR		 7218 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7219 printk(MPT2SAS_INFO_FMT "\tbreak from volume scan: "
7220 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7221 ioc->name, ioc_status,
7222 le32_to_cpu(mpi_reply.IOCLogInfo));
7223 break;
7224 }
921cd802 7225 handle = le16_to_cpu(volume_pg1.DevHandle);
09da0b32 7226 spin_lock_irqsave(&ioc->raid_device_lock, flags);
921cd802 7227 raid_device = _scsih_raid_device_find_by_wwid(ioc,
7228 le64_to_cpu(volume_pg1.WWID));
09da0b32 7229 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
921cd802 7230 if (raid_device)
7231 continue;
7232 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
7233 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
7234 sizeof(Mpi2RaidVolPage0_t)))
7235 continue;
6241f22c
SR		 7236 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7237 MPI2_IOCSTATUS_MASK;
7238 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7239 printk(MPT2SAS_INFO_FMT "\tbreak from volume scan: "
7240 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7241 ioc->name, ioc_status,
7242 le32_to_cpu(mpi_reply.IOCLogInfo));
7243 break;
7244 }
921cd802 7245 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
7246 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
7247 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
7248 memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
7249 element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
7250 element.VolDevHandle = volume_pg1.DevHandle;
6241f22c
SR		 7251 printk(MPT2SAS_INFO_FMT "\tBEFORE adding volume: "
7252 " handle (0x%04x)\n", ioc->name,
7253 volume_pg1.DevHandle);
921cd802 7254 _scsih_sas_volume_add(ioc, &element);
6241f22c
SR		 7255 printk(MPT2SAS_INFO_FMT "\tAFTER adding volume: "
7256 " handle (0x%04x)\n", ioc->name,
7257 volume_pg1.DevHandle);
921cd802 7258 }
7259 }
7260
6241f22c
SR		 7261 printk(MPT2SAS_INFO_FMT "\tscan devices: volumes complete\n",
7262 ioc->name);
7263
921cd802 7264 skip_to_sas:
7265
6241f22c
SR		 7266 printk(MPT2SAS_INFO_FMT "\tscan devices: end devices start\n",
7267 ioc->name);
921cd802 7268 /* sas devices */
7269 handle = 0xFFFF;
7270 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
7271 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
7272 handle))) {
7273 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
7274 MPI2_IOCSTATUS_MASK;
6241f22c
SR		 7275 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
7276 printk(MPT2SAS_INFO_FMT "\tbreak from end device scan:"
7277 " ioc_status(0x%04x), loginfo(0x%08x)\n",
7278 ioc->name, ioc_status,
7279 le32_to_cpu(mpi_reply.IOCLogInfo));
7280 break;
7281 }
921cd802 7282 handle = le16_to_cpu(sas_device_pg0.DevHandle);
7283 if (!(_scsih_is_end_device(
7284 le32_to_cpu(sas_device_pg0.DeviceInfo))))
7285 continue;
09da0b32 7286 spin_lock_irqsave(&ioc->sas_device_lock, flags);
921cd802 7287 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
7288 le64_to_cpu(sas_device_pg0.SASAddress));
09da0b32 7289 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
921cd802 7290 if (sas_device)
7291 continue;
7292 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
7293 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
6241f22c
SR		 7294 printk(MPT2SAS_INFO_FMT "\tBEFORE adding end device: "
7295 "handle (0x%04x), sas_addr(0x%016llx)\n",
7296 ioc->name, handle, (unsigned long long)
7297 le64_to_cpu(sas_device_pg0.SASAddress));
921cd802 7298 mpt2sas_transport_update_links(ioc, sas_address, handle,
7299 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
6241f22c
SR		 7300 retry_count = 0;
7301 /* This will retry adding the end device.
7302 * _scsih_add_device() will decide on retries and
7303 * return "1" when it should be retried
7304 */
7305 while (_scsih_add_device(ioc, handle, retry_count++,
7306 0)) {
7307 ssleep(1);
7308 }
7309 printk(MPT2SAS_INFO_FMT "\tAFTER adding end device: "
7310 "handle (0x%04x), sas_addr(0x%016llx)\n",
7311 ioc->name, handle, (unsigned long long)
7312 le64_to_cpu(sas_device_pg0.SASAddress));
0bdccdb0
KD		 7313 }
7314 }
921cd802 7315
6241f22c
SR		 7316 printk(MPT2SAS_INFO_FMT "\tscan devices: end devices complete\n",
7317 ioc->name);
7318
921cd802 7319 printk(MPT2SAS_INFO_FMT "scan devices: complete\n", ioc->name);
0bdccdb0
KD		 7320}
7321
921cd802 7322
cd4e12e8
KD		 7323/**
7324 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
7325 * @ioc: per adapter object
7326 * @reset_phase: phase
7327 *
7328 * The handler for doing any required cleanup or initialization.
7329 *
7330 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
7331 * MPT2_IOC_DONE_RESET
7332 *
7333 * Return nothing.
7334 */
7335void
7336mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
7337{
7338 switch (reset_phase) {
7339 case MPT2_IOC_PRE_RESET:
eabb08ad 7340 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
cd4e12e8 7341 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
cd4e12e8
KD		 7342 break;
7343 case MPT2_IOC_AFTER_RESET:
eabb08ad 7344 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
cd4e12e8 7345 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
f1c35e6a
KD		 7346 if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
7347 ioc->scsih_cmds.status |= MPT2_CMD_RESET;
7348 mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
7349 complete(&ioc->scsih_cmds.done);
7350 }
cd4e12e8
KD		 7351 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
7352 ioc->tm_cmds.status |= MPT2_CMD_RESET;
7353 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
7354 complete(&ioc->tm_cmds.done);
7355 }
f1c35e6a 7356 _scsih_fw_event_cleanup_queue(ioc);
cd4e12e8
KD		 7357 _scsih_flush_running_cmds(ioc);
7358 break;
7359 case MPT2_IOC_DONE_RESET:
eabb08ad 7360 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
cd4e12e8 7361 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
c5e039be 7362 _scsih_sas_host_refresh(ioc);
14695853
KD		 7363 _scsih_prep_device_scan(ioc);
7364 _scsih_search_responding_sas_devices(ioc);
7365 _scsih_search_responding_raid_devices(ioc);
7366 _scsih_search_responding_expanders(ioc);
14aa7f7e 7367 if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
7368 !ioc->sas_hba.num_phys)) {
918134ef 7369 _scsih_prep_device_scan(ioc);
7370 _scsih_search_responding_sas_devices(ioc);
7371 _scsih_search_responding_raid_devices(ioc);
7372 _scsih_search_responding_expanders(ioc);
921cd802 7373 _scsih_error_recovery_delete_devices(ioc);
918134ef 7374 }
cd4e12e8 7375 break;
635374e7
EM		 7376 }
7377}
7378
7379/**
7380 * _firmware_event_work - delayed task for processing firmware events
7381 * @ioc: per adapter object
7382 * @work: equal to the fw_event_work object
7383 * Context: user.
7384 *
7385 * Return nothing.
7386 */
7387static void
7388_firmware_event_work(struct work_struct *work)
7389{
7390 struct fw_event_work *fw_event = container_of(work,
f1c35e6a 7391 struct fw_event_work, delayed_work.work);
635374e7
EM		 7392 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
7393
635374e7 7394 /* the queue is being flushed so ignore this event */
3cb5469a
EM		 7395 if (ioc->remove_host || fw_event->cancel_pending_work ||
7396 ioc->pci_error_recovery) {
635374e7
EM		 7397 _scsih_fw_event_free(ioc, fw_event);
7398 return;
7399 }
635374e7 7400
921cd802 7401 switch (fw_event->event) {
7402 case MPT2SAS_REMOVE_UNRESPONDING_DEVICES:
09da0b32 7403 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
921cd802 7404 ssleep(1);
f1c35e6a 7405 _scsih_remove_unresponding_sas_devices(ioc);
921cd802 7406 _scsih_scan_for_devices_after_reset(ioc);
7407 break;
7408 case MPT2SAS_PORT_ENABLE_COMPLETE:
918134ef 7409 ioc->start_scan = 0;
921cd802 7410
b0df96a0
RS		 7411 if (missing_delay[0] != -1 && missing_delay[1] != -1)
7412 mpt2sas_base_update_missing_delay(ioc, missing_delay[0],
7413 missing_delay[1]);
921cd802 7414
7415 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "port enable: complete "
7416 "from worker thread\n", ioc->name));
7417 break;
3ace8e05
KD		 7418 case MPT2SAS_TURN_ON_FAULT_LED:
7419 _scsih_turn_on_fault_led(ioc, fw_event->device_handle);
7420 break;
635374e7 7421 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7b936b02 7422 _scsih_sas_topology_change_event(ioc, fw_event);
635374e7
EM		 7423 break;
7424 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7b936b02
KD		 7425 _scsih_sas_device_status_change_event(ioc,
7426 fw_event);
635374e7
EM		 7427 break;
7428 case MPI2_EVENT_SAS_DISCOVERY:
7b936b02
KD		 7429 _scsih_sas_discovery_event(ioc,
7430 fw_event);
635374e7
EM		 7431 break;
7432 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
a78e21dc 7433 _scsih_sas_broadcast_primitive_event(ioc,
7b936b02 7434 fw_event);
635374e7
EM		 7435 break;
7436 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7437 _scsih_sas_enclosure_dev_status_change_event(ioc,
7b936b02 7438 fw_event);
635374e7
EM		 7439 break;
7440 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7b936b02 7441 _scsih_sas_ir_config_change_event(ioc, fw_event);
635374e7
EM		 7442 break;
7443 case MPI2_EVENT_IR_VOLUME:
7b936b02 7444 _scsih_sas_ir_volume_event(ioc, fw_event);
635374e7
EM		 7445 break;
7446 case MPI2_EVENT_IR_PHYSICAL_DISK:
7b936b02 7447 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
635374e7
EM		 7448 break;
7449 case MPI2_EVENT_IR_OPERATION_STATUS:
7b936b02 7450 _scsih_sas_ir_operation_status_event(ioc, fw_event);
635374e7 7451 break;
635374e7
EM		 7452 }
7453 _scsih_fw_event_free(ioc, fw_event);
7454}
7455
7456/**
7457 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
7458 * @ioc: per adapter object
7b936b02 7459 * @msix_index: MSIX table index supplied by the OS
635374e7
EM		 7460 * @reply: reply message frame(lower 32bit addr)
7461 * Context: interrupt.
7462 *
7463 * This function merely adds a new work task into ioc->firmware_event_thread.
7464 * The tasks are worked from _firmware_event_work in user context.
7465 *
6409a7d0 7466 * Returns void.
635374e7 7467 */
6409a7d0 7468void
7b936b02
KD		 7469mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
7470 u32 reply)
635374e7
EM		 7471{
7472 struct fw_event_work *fw_event;
7473 Mpi2EventNotificationReply_t *mpi_reply;
635374e7 7474 u16 event;
e94f6747 7475 u16 sz;
635374e7
EM		 7476
7477 /* events turned off due to host reset or driver unloading */
3cb5469a 7478 if (ioc->remove_host || ioc->pci_error_recovery)
6409a7d0 7479 return;
635374e7 7480
77e63ed4 7481 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
298c794d 7482
7483 if (unlikely(!mpi_reply)) {
7484 printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
7485 ioc->name, __FILE__, __LINE__, __func__);
6409a7d0 7486 return;
298c794d 7487 }
7488
635374e7
EM		 7489 event = le16_to_cpu(mpi_reply->Event);
7490
7491 switch (event) {
7492 /* handle these */
7493 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7494 {
7495 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
7496 (Mpi2EventDataSasBroadcastPrimitive_t *)
7497 mpi_reply->EventData;
7498
7499 if (baen_data->Primitive !=
f93213de 7500 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
6409a7d0 7501 return;
f93213de
KD		 7502
7503 if (ioc->broadcast_aen_busy) {
7504 ioc->broadcast_aen_pending++;
6409a7d0 7505 return;
f93213de
KD		 7506 } else
7507 ioc->broadcast_aen_busy = 1;
635374e7
EM		 7508 break;
7509 }
7510
7511 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7512 _scsih_check_topo_delete_events(ioc,
7513 (Mpi2EventDataSasTopologyChangeList_t *)
7514 mpi_reply->EventData);
7515 break;
f3eedd69
KD		 7516 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7517 _scsih_check_ir_config_unhide_events(ioc,
7518 (Mpi2EventDataIrConfigChangeList_t *)
7519 mpi_reply->EventData);
7520 break;
7521 case MPI2_EVENT_IR_VOLUME:
7522 _scsih_check_volume_delete_events(ioc,
7523 (Mpi2EventDataIrVolume_t *)
7524 mpi_reply->EventData);
7525 break;
0bdccdb0
KD		 7526 case MPI2_EVENT_LOG_ENTRY_ADDED:
7527 {
7528 Mpi2EventDataLogEntryAdded_t *log_entry;
d838c36c 7529 __le32 *log_code;
0bdccdb0
KD		 7530
7531 if (!ioc->is_warpdrive)
7532 break;
7533
7534 log_entry = (Mpi2EventDataLogEntryAdded_t *)
7535 mpi_reply->EventData;
d838c36c 7536 log_code = (__le32 *)log_entry->LogData;
0bdccdb0
KD		 7537
7538 if (le16_to_cpu(log_entry->LogEntryQualifier)
7539 != MPT2_WARPDRIVE_LOGENTRY)
7540 break;
7541
7542 switch (le32_to_cpu(*log_code)) {
7543 case MPT2_WARPDRIVE_LC_SSDT:
7544 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7545 "IO Throttling has occurred in the WarpDrive "
7546 "subsystem. Check WarpDrive documentation for "
7547 "additional details.\n", ioc->name);
7548 break;
7549 case MPT2_WARPDRIVE_LC_SSDLW:
7550 printk(MPT2SAS_WARN_FMT "WarpDrive Warning: "
7551 "Program/Erase Cycles for the WarpDrive subsystem "
7552 "in degraded range. Check WarpDrive documentation "
7553 "for additional details.\n", ioc->name);
7554 break;
7555 case MPT2_WARPDRIVE_LC_SSDLF:
7556 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7557 "There are no Program/Erase Cycles for the "
7558 "WarpDrive subsystem. The storage device will be "
7559 "in read-only mode. Check WarpDrive documentation "
7560 "for additional details.\n", ioc->name);
7561 break;
7562 case MPT2_WARPDRIVE_LC_BRMF:
7563 printk(MPT2SAS_ERR_FMT "WarpDrive Fatal Error: "
7564 "The Backup Rail Monitor has failed on the "
7565 "WarpDrive subsystem. Check WarpDrive "
7566 "documentation for additional details.\n",
7567 ioc->name);
7568 break;
7569 }
7570
7571 break;
7572 }
635374e7
EM		 7573 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7574 case MPI2_EVENT_IR_OPERATION_STATUS:
7575 case MPI2_EVENT_SAS_DISCOVERY:
7576 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
635374e7 7577 case MPI2_EVENT_IR_PHYSICAL_DISK:
635374e7
EM		 7578 break;
7579
7580 default: /* ignore the rest */
6409a7d0 7581 return;
635374e7
EM		 7582 }
7583
7584 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
7585 if (!fw_event) {
7586 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7587 ioc->name, __FILE__, __LINE__, __func__);
6409a7d0 7588 return;
635374e7 7589 }
e94f6747
KD		 7590 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
7591 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
635374e7
EM		 7592 if (!fw_event->event_data) {
7593 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7594 ioc->name, __FILE__, __LINE__, __func__);
7595 kfree(fw_event);
6409a7d0 7596 return;
635374e7
EM		 7597 }
7598
7599 memcpy(fw_event->event_data, mpi_reply->EventData,
e94f6747 7600 sz);
635374e7 7601 fw_event->ioc = ioc;
7b936b02
KD		 7602 fw_event->VF_ID = mpi_reply->VF_ID;
7603 fw_event->VP_ID = mpi_reply->VP_ID;
635374e7
EM		 7604 fw_event->event = event;
7605 _scsih_fw_event_add(ioc, fw_event);
6409a7d0 7606 return;
635374e7
EM		 7607}
7608
7609/* shost template */
7610static struct scsi_host_template scsih_driver_template = {
7611 .module = THIS_MODULE,
7612 .name = "Fusion MPT SAS Host",
7613 .proc_name = MPT2SAS_DRIVER_NAME,
d5d135b3
EM		 7614 .queuecommand = _scsih_qcmd,
7615 .target_alloc = _scsih_target_alloc,
7616 .slave_alloc = _scsih_slave_alloc,
7617 .slave_configure = _scsih_slave_configure,
7618 .target_destroy = _scsih_target_destroy,
7619 .slave_destroy = _scsih_slave_destroy,
921cd802 7620 .scan_finished = _scsih_scan_finished,
7621 .scan_start = _scsih_scan_start,
d5d135b3
EM		 7622 .change_queue_depth = _scsih_change_queue_depth,
7623 .change_queue_type = _scsih_change_queue_type,
7624 .eh_abort_handler = _scsih_abort,
7625 .eh_device_reset_handler = _scsih_dev_reset,
7626 .eh_target_reset_handler = _scsih_target_reset,
7627 .eh_host_reset_handler = _scsih_host_reset,
7628 .bios_param = _scsih_bios_param,
635374e7
EM		 7629 .can_queue = 1,
7630 .this_id = -1,
7631 .sg_tablesize = MPT2SAS_SG_DEPTH,
9ac49d3a 7632 .max_sectors = 32767,
635374e7
EM		 7633 .cmd_per_lun = 7,
7634 .use_clustering = ENABLE_CLUSTERING,
7635 .shost_attrs = mpt2sas_host_attrs,
7636 .sdev_attrs = mpt2sas_dev_attrs,
7637};
7638
7639/**
7640 * _scsih_expander_node_remove - removing expander device from list.
7641 * @ioc: per adapter object
7642 * @sas_expander: the sas_device object
7643 * Context: Calling function should acquire ioc->sas_node_lock.
7644 *
7645 * Removing object and freeing associated memory from the
7646 * ioc->sas_expander_list.
7647 *
7648 * Return nothing.
7649 */
7650static void
7651_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
7652 struct _sas_node *sas_expander)
7653{
7f6f794d 7654 struct _sas_port *mpt2sas_port, *next;
635374e7
EM		 7655
7656 /* remove sibling ports attached to this expander */
7f6f794d 7657 list_for_each_entry_safe(mpt2sas_port, next,
635374e7 7658 &sas_expander->sas_port_list, port_list) {
7f6f794d
KD		 7659 if (ioc->shost_recovery)
7660 return;
635374e7 7661 if (mpt2sas_port->remote_identify.device_type ==
7f6f794d 7662 SAS_END_DEVICE)
09da0b32 7663 mpt2sas_device_remove_by_sas_address(ioc,
7f6f794d
KD		 7664 mpt2sas_port->remote_identify.sas_address);
7665 else if (mpt2sas_port->remote_identify.device_type ==
7666 SAS_EDGE_EXPANDER_DEVICE ||
635374e7 7667 mpt2sas_port->remote_identify.device_type ==
7f6f794d
KD		 7668 SAS_FANOUT_EXPANDER_DEVICE)
7669 mpt2sas_expander_remove(ioc,
7670 mpt2sas_port->remote_identify.sas_address);
635374e7
EM		 7671 }
7672
7673 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
c5e039be 7674 sas_expander->sas_address_parent);
635374e7
EM		 7675
7676 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
7677 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
7678 sas_expander->handle, (unsigned long long)
7679 sas_expander->sas_address);
7680
635374e7
EM		 7681 kfree(sas_expander->phy);
7682 kfree(sas_expander);
7683}
7684
744090d3
KD		 7685/**
7686 * _scsih_ir_shutdown - IR shutdown notification
7687 * @ioc: per adapter object
7688 *
7689 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
7690 * the host system is shutting down.
7691 *
7692 * Return nothing.
7693 */
7694static void
7695_scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
7696{
7697 Mpi2RaidActionRequest_t *mpi_request;
7698 Mpi2RaidActionReply_t *mpi_reply;
7699 u16 smid;
7700
7701 /* is IR firmware build loaded ? */
7702 if (!ioc->ir_firmware)
7703 return;
7704
744090d3
KD		 7705 mutex_lock(&ioc->scsih_cmds.mutex);
7706
7707 if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
7708 printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
7709 ioc->name, __func__);
7710 goto out;
7711 }
7712 ioc->scsih_cmds.status = MPT2_CMD_PENDING;
7713
7714 smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
7715 if (!smid) {
7716 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
7717 ioc->name, __func__);
7718 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7719 goto out;
7720 }
7721
7722 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
7723 ioc->scsih_cmds.smid = smid;
7724 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
7725
7726 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
7727 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
7728
0bdccdb0
KD		 7729 if (!ioc->hide_ir_msg)
7730 printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
744090d3
KD		 7731 init_completion(&ioc->scsih_cmds.done);
7732 mpt2sas_base_put_smid_default(ioc, smid);
7733 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
7734
7735 if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
7736 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
7737 ioc->name, __func__);
7738 goto out;
7739 }
7740
7741 if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
7742 mpi_reply = ioc->scsih_cmds.reply;
7743
0bdccdb0
KD		 7744 if (!ioc->hide_ir_msg)
7745 printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
7746 "ioc_status(0x%04x), loginfo(0x%08x)\n",
7747 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
7748 le32_to_cpu(mpi_reply->IOCLogInfo));
744090d3
KD		 7749 }
7750
7751 out:
7752 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
7753 mutex_unlock(&ioc->scsih_cmds.mutex);
7754}
7755
7756/**
7757 * _scsih_shutdown - routine call during system shutdown
7758 * @pdev: PCI device struct
7759 *
7760 * Return nothing.
7761 */
7762static void
7763_scsih_shutdown(struct pci_dev *pdev)
7764{
7765 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7766 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
f1c35e6a
KD		 7767 struct workqueue_struct *wq;
7768 unsigned long flags;
7769
7770 ioc->remove_host = 1;
7771 _scsih_fw_event_cleanup_queue(ioc);
7772
7773 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7774 wq = ioc->firmware_event_thread;
7775 ioc->firmware_event_thread = NULL;
7776 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7777 if (wq)
7778 destroy_workqueue(wq);
744090d3
KD		 7779
7780 _scsih_ir_shutdown(ioc);
7781 mpt2sas_base_detach(ioc);
7782}
7783
635374e7 7784/**
d5d135b3 7785 * _scsih_remove - detach and remove add host
635374e7
EM		 7786 * @pdev: PCI device struct
7787 *
744090d3 7788 * Routine called when unloading the driver.
635374e7
EM		 7789 * Return nothing.
7790 */
6f039790 7791static void
d5d135b3 7792_scsih_remove(struct pci_dev *pdev)
635374e7
EM		 7793{
7794 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7795 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7f6f794d 7796 struct _sas_port *mpt2sas_port, *next_port;
d7384b28
KD		 7797 struct _raid_device *raid_device, *next;
7798 struct MPT2SAS_TARGET *sas_target_priv_data;
635374e7
EM		 7799 struct workqueue_struct *wq;
7800 unsigned long flags;
7801
7802 ioc->remove_host = 1;
f1c35e6a 7803 _scsih_fw_event_cleanup_queue(ioc);
635374e7
EM		 7804
7805 spin_lock_irqsave(&ioc->fw_event_lock, flags);
7806 wq = ioc->firmware_event_thread;
7807 ioc->firmware_event_thread = NULL;
7808 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
7809 if (wq)
7810 destroy_workqueue(wq);
7811
d7384b28 7812 /* release all the volumes */
3a9c913a 7813 _scsih_ir_shutdown(ioc);
d7384b28
KD		 7814 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
7815 list) {
7816 if (raid_device->starget) {
7817 sas_target_priv_data =
7818 raid_device->starget->hostdata;
7819 sas_target_priv_data->deleted = 1;
7820 scsi_remove_target(&raid_device->starget->dev);
7821 }
7822 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
7823 "(0x%016llx)\n", ioc->name, raid_device->handle,
7824 (unsigned long long) raid_device->wwid);
7825 _scsih_raid_device_remove(ioc, raid_device);
7826 }
7827
635374e7 7828 /* free ports attached to the sas_host */
7f6f794d 7829 list_for_each_entry_safe(mpt2sas_port, next_port,
635374e7
EM		 7830 &ioc->sas_hba.sas_port_list, port_list) {
7831 if (mpt2sas_port->remote_identify.device_type ==
7f6f794d 7832 SAS_END_DEVICE)
09da0b32 7833 mpt2sas_device_remove_by_sas_address(ioc,
7f6f794d
KD		 7834 mpt2sas_port->remote_identify.sas_address);
7835 else if (mpt2sas_port->remote_identify.device_type ==
7836 SAS_EDGE_EXPANDER_DEVICE ||
7837 mpt2sas_port->remote_identify.device_type ==
7838 SAS_FANOUT_EXPANDER_DEVICE)
7839 mpt2sas_expander_remove(ioc,
635374e7 7840 mpt2sas_port->remote_identify.sas_address);
635374e7
EM		 7841 }
7842
7843 /* free phys attached to the sas_host */
7844 if (ioc->sas_hba.num_phys) {
7845 kfree(ioc->sas_hba.phy);
7846 ioc->sas_hba.phy = NULL;
7847 ioc->sas_hba.num_phys = 0;
7848 }
7849
7850 sas_remove_host(shost);
9ae89b02 7851 mpt2sas_base_detach(ioc);
635374e7
EM		 7852 list_del(&ioc->list);
7853 scsi_remove_host(shost);
7854 scsi_host_put(shost);
7855}
7856
7857/**
7858 * _scsih_probe_boot_devices - reports 1st device
7859 * @ioc: per adapter object
7860 *
7861 * If specified in bios page 2, this routine reports the 1st
7862 * device scsi-ml or sas transport for persistent boot device
7863 * purposes. Please refer to function _scsih_determine_boot_device()
7864 */
7865static void
7866_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
7867{
7868 u8 is_raid;
7869 void *device;
7870 struct _sas_device *sas_device;
7871 struct _raid_device *raid_device;
c5e039be
KD		 7872 u16 handle;
7873 u64 sas_address_parent;
635374e7
EM		 7874 u64 sas_address;
7875 unsigned long flags;
7876 int rc;
7877
921cd802 7878 /* no Bios, return immediately */
7879 if (!ioc->bios_pg3.BiosVersion)
7880 return;
7881
635374e7 7882 device = NULL;
921cd802 7883 is_raid = 0;
635374e7
EM		 7884 if (ioc->req_boot_device.device) {
7885 device = ioc->req_boot_device.device;
7886 is_raid = ioc->req_boot_device.is_raid;
7887 } else if (ioc->req_alt_boot_device.device) {
7888 device = ioc->req_alt_boot_device.device;
7889 is_raid = ioc->req_alt_boot_device.is_raid;
7890 } else if (ioc->current_boot_device.device) {
7891 device = ioc->current_boot_device.device;
7892 is_raid = ioc->current_boot_device.is_raid;
7893 }
7894
7895 if (!device)
7896 return;
7897
7898 if (is_raid) {
7899 raid_device = device;
7900 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7901 raid_device->id, 0);
7902 if (rc)
7903 _scsih_raid_device_remove(ioc, raid_device);
7904 } else {
09da0b32 7905 spin_lock_irqsave(&ioc->sas_device_lock, flags);
635374e7
EM		 7906 sas_device = device;
7907 handle = sas_device->handle;
c5e039be 7908 sas_address_parent = sas_device->sas_address_parent;
635374e7 7909 sas_address = sas_device->sas_address;
635374e7
EM		 7910 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7911 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
0bdccdb0
KD		 7912
7913 if (ioc->hide_drives)
7914 return;
635374e7 7915 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
c5e039be 7916 sas_device->sas_address_parent)) {
635374e7
EM		 7917 _scsih_sas_device_remove(ioc, sas_device);
7918 } else if (!sas_device->starget) {
35116db9 7919 if (!ioc->is_driver_loading)
7920 mpt2sas_transport_port_remove(ioc, sas_address,
7921 sas_address_parent);
635374e7
EM		 7922 _scsih_sas_device_remove(ioc, sas_device);
7923 }
7924 }
7925}
7926
7927/**
7928 * _scsih_probe_raid - reporting raid volumes to scsi-ml
7929 * @ioc: per adapter object
7930 *
7931 * Called during initial loading of the driver.
7932 */
7933static void
7934_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
7935{
7936 struct _raid_device *raid_device, *raid_next;
7937 int rc;
7938
7939 list_for_each_entry_safe(raid_device, raid_next,
7940 &ioc->raid_device_list, list) {
7941 if (raid_device->starget)
7942 continue;
7943 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
7944 raid_device->id, 0);
7945 if (rc)
7946 _scsih_raid_device_remove(ioc, raid_device);
7947 }
7948}
7949
7950/**
77e63ed4 7951 * _scsih_probe_sas - reporting sas devices to sas transport
635374e7
EM		 7952 * @ioc: per adapter object
7953 *
7954 * Called during initial loading of the driver.
7955 */
7956static void
7957_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
7958{
7959 struct _sas_device *sas_device, *next;
7960 unsigned long flags;
635374e7
EM		 7961
7962 /* SAS Device List */
7963 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7964 list) {
635374e7 7965
0bdccdb0
KD		 7966 if (ioc->hide_drives)
7967 continue;
7968
c5e039be
KD		 7969 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7970 sas_device->sas_address_parent)) {
0167ac67 7971 list_del(&sas_device->list);
7972 kfree(sas_device);
7973 continue;
635374e7 7974 } else if (!sas_device->starget) {
35116db9 7975 if (!ioc->is_driver_loading)
7976 mpt2sas_transport_port_remove(ioc,
7977 sas_device->sas_address,
7978 sas_device->sas_address_parent);
0167ac67 7979 list_del(&sas_device->list);
7980 kfree(sas_device);
7981 continue;
7982
635374e7 7983 }
0167ac67 7984 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7985 list_move_tail(&sas_device->list, &ioc->sas_device_list);
7986 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
635374e7
EM		 7987 }
7988}
7989
7990/**
7991 * _scsih_probe_devices - probing for devices
7992 * @ioc: per adapter object
7993 *
7994 * Called during initial loading of the driver.
7995 */
7996static void
7997_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
7998{
921cd802 7999 u16 volume_mapping_flags;
635374e7
EM		 8000
8001 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
8002 return; /* return when IOC doesn't support initiator mode */
8003
8004 _scsih_probe_boot_devices(ioc);
8005
8006 if (ioc->ir_firmware) {
921cd802 8007 volume_mapping_flags =
8008 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
8009 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
8010 if (volume_mapping_flags ==
8011 MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
635374e7 8012 _scsih_probe_raid(ioc);
921cd802 8013 _scsih_probe_sas(ioc);
635374e7 8014 } else {
635374e7 8015 _scsih_probe_sas(ioc);
921cd802 8016 _scsih_probe_raid(ioc);
635374e7
EM		 8017 }
8018 } else
8019 _scsih_probe_sas(ioc);
8020}
8021
921cd802 8022
8023/**
8024 * _scsih_scan_start - scsi lld callback for .scan_start
8025 * @shost: SCSI host pointer
8026 *
8027 * The shost has the ability to discover targets on its own instead
8028 * of scanning the entire bus. In our implemention, we will kick off
8029 * firmware discovery.
8030 */
8031static void
8032_scsih_scan_start(struct Scsi_Host *shost)
8033{
8034 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8035 int rc;
8036
8037 if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
8038 mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable);
8039
4b193175 8040 if (disable_discovery > 0)
8041 return;
8042
921cd802 8043 ioc->start_scan = 1;
8044 rc = mpt2sas_port_enable(ioc);
8045
8046 if (rc != 0)
8047 printk(MPT2SAS_INFO_FMT "port enable: FAILED\n", ioc->name);
8048}
8049
8050/**
8051 * _scsih_scan_finished - scsi lld callback for .scan_finished
8052 * @shost: SCSI host pointer
8053 * @time: elapsed time of the scan in jiffies
8054 *
8055 * This function will be called periodically until it returns 1 with the
8056 * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
8057 * we wait for firmware discovery to complete, then return 1.
8058 */
8059static int
8060_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
8061{
8062 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8063
4b193175 8064 if (disable_discovery > 0) {
8065 ioc->is_driver_loading = 0;
8066 ioc->wait_for_discovery_to_complete = 0;
8067 return 1;
8068 }
8069
921cd802 8070 if (time >= (300 * HZ)) {
8071 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
8072 printk(MPT2SAS_INFO_FMT "port enable: FAILED with timeout "
8073 "(timeout=300s)\n", ioc->name);
8074 ioc->is_driver_loading = 0;
8075 return 1;
8076 }
8077
8078 if (ioc->start_scan)
8079 return 0;
8080
8081 if (ioc->start_scan_failed) {
8082 printk(MPT2SAS_INFO_FMT "port enable: FAILED with "
8083 "(ioc_status=0x%08x)\n", ioc->name, ioc->start_scan_failed);
8084 ioc->is_driver_loading = 0;
8085 ioc->wait_for_discovery_to_complete = 0;
8086 ioc->remove_host = 1;
8087 return 1;
8088 }
8089
8090 printk(MPT2SAS_INFO_FMT "port enable: SUCCESS\n", ioc->name);
8091 ioc->base_cmds.status = MPT2_CMD_NOT_USED;
8092
8093 if (ioc->wait_for_discovery_to_complete) {
8094 ioc->wait_for_discovery_to_complete = 0;
8095 _scsih_probe_devices(ioc);
8096 }
8097 mpt2sas_base_start_watchdog(ioc);
8098 ioc->is_driver_loading = 0;
8099 return 1;
8100}
8101
8102
635374e7 8103/**
d5d135b3 8104 * _scsih_probe - attach and add scsi host
635374e7
EM		 8105 * @pdev: PCI device struct
8106 * @id: pci device id
8107 *
8108 * Returns 0 success, anything else error.
8109 */
8110static int
d5d135b3 8111_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
635374e7
EM		 8112{
8113 struct MPT2SAS_ADAPTER *ioc;
8114 struct Scsi_Host *shost;
8115
8116 shost = scsi_host_alloc(&scsih_driver_template,
8117 sizeof(struct MPT2SAS_ADAPTER));
8118 if (!shost)
8119 return -ENODEV;
8120
8121 /* init local params */
8122 ioc = shost_priv(shost);
8123 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
8124 INIT_LIST_HEAD(&ioc->list);
ba33fadf 8125 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
635374e7
EM		 8126 ioc->shost = shost;
8127 ioc->id = mpt_ids++;
8128 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
8129 ioc->pdev = pdev;
0bdccdb0
KD		 8130 if (id->device == MPI2_MFGPAGE_DEVID_SSS6200) {
8131 ioc->is_warpdrive = 1;
8132 ioc->hide_ir_msg = 1;
8133 } else
8134 ioc->mfg_pg10_hide_flag = MFG_PAGE10_EXPOSE_ALL_DISKS;
635374e7
EM		 8135 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
8136 ioc->tm_cb_idx = tm_cb_idx;
8137 ioc->ctl_cb_idx = ctl_cb_idx;
8138 ioc->base_cb_idx = base_cb_idx;
921cd802 8139 ioc->port_enable_cb_idx = port_enable_cb_idx;
635374e7 8140 ioc->transport_cb_idx = transport_cb_idx;
744090d3 8141 ioc->scsih_cb_idx = scsih_cb_idx;
635374e7 8142 ioc->config_cb_idx = config_cb_idx;
77e63ed4 8143 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
f3eedd69 8144 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
77e63ed4 8145 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
635374e7 8146 ioc->logging_level = logging_level;
845a0e40 8147 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
635374e7 8148 /* misc semaphores and spin locks */
d274213a 8149 mutex_init(&ioc->reset_in_progress_mutex);
635374e7
EM		 8150 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
8151 spin_lock_init(&ioc->scsi_lookup_lock);
8152 spin_lock_init(&ioc->sas_device_lock);
8153 spin_lock_init(&ioc->sas_node_lock);
8154 spin_lock_init(&ioc->fw_event_lock);
8155 spin_lock_init(&ioc->raid_device_lock);
8156
8157 INIT_LIST_HEAD(&ioc->sas_device_list);
8158 INIT_LIST_HEAD(&ioc->sas_device_init_list);
8159 INIT_LIST_HEAD(&ioc->sas_expander_list);
8160 INIT_LIST_HEAD(&ioc->fw_event_list);
8161 INIT_LIST_HEAD(&ioc->raid_device_list);
8162 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
77e63ed4 8163 INIT_LIST_HEAD(&ioc->delayed_tr_list);
f3eedd69 8164 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
3b3e6f8d 8165 INIT_LIST_HEAD(&ioc->reply_queue_list);
635374e7
EM		 8166
8167 /* init shost parameters */
d334aa79 8168 shost->max_cmd_len = 32;
635374e7
EM		 8169 shost->max_lun = max_lun;
8170 shost->transportt = mpt2sas_transport_template;
8171 shost->unique_id = ioc->id;
8172
a3e1e55e
KD		 8173 if (max_sectors != 0xFFFF) {
8174 if (max_sectors < 64) {
8175 shost->max_sectors = 64;
6241f22c
SR		 8176 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
8177 "for max_sectors, range is 64 to 32767. Assigning "
a3e1e55e 8178 "value of 64.\n", ioc->name, max_sectors);
9ac49d3a 8179 } else if (max_sectors > 32767) {
8180 shost->max_sectors = 32767;
a3e1e55e
KD		 8181 printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
8182 "for max_sectors, range is 64 to 8192. Assigning "
9ac49d3a 8183 "default value of 32767.\n", ioc->name,
a3e1e55e
KD		 8184 max_sectors);
8185 } else {
8186 shost->max_sectors = max_sectors & 0xFFFE;
8187 printk(MPT2SAS_INFO_FMT "The max_sectors value is "
8188 "set to %d\n", ioc->name, shost->max_sectors);
8189 }
8190 }
8191
635374e7
EM		 8192 if ((scsi_add_host(shost, &pdev->dev))) {
8193 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8194 ioc->name, __FILE__, __LINE__, __func__);
8195 list_del(&ioc->list);
8196 goto out_add_shost_fail;
8197 }
8198
5e95e731
MP		 8199 /* register EEDP capabilities with SCSI layer */
8200 if (prot_mask)
8201 scsi_host_set_prot(shost, prot_mask);
8202 else
8203 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
8204 | SHOST_DIF_TYPE2_PROTECTION
8205 | SHOST_DIF_TYPE3_PROTECTION);
8206
77e63ed4 8207 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
3c621b3e 8208
635374e7
EM		 8209 /* event thread */
8210 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
8211 "fw_event%d", ioc->id);
8212 ioc->firmware_event_thread = create_singlethread_workqueue(
8213 ioc->firmware_event_name);
8214 if (!ioc->firmware_event_thread) {
8215 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8216 ioc->name, __FILE__, __LINE__, __func__);
8217 goto out_thread_fail;
8218 }
8219
921cd802 8220 ioc->is_driver_loading = 1;
635374e7
EM		 8221 if ((mpt2sas_base_attach(ioc))) {
8222 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
8223 ioc->name, __FILE__, __LINE__, __func__);
8224 goto out_attach_fail;
8225 }
8226
0bdccdb0
KD		 8227 if (ioc->is_warpdrive) {
8228 if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS)
8229 ioc->hide_drives = 0;
8230 else if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_HIDE_ALL_DISKS)
8231 ioc->hide_drives = 1;
8232 else {
8233 if (_scsih_get_num_volumes(ioc))
8234 ioc->hide_drives = 1;
8235 else
8236 ioc->hide_drives = 0;
8237 }
8238 } else
8239 ioc->hide_drives = 0;
2cb6fc8c 8240 scsi_scan_host(shost);
0bdccdb0 8241
635374e7
EM		 8242 return 0;
8243
8244 out_attach_fail:
8245 destroy_workqueue(ioc->firmware_event_thread);
8246 out_thread_fail:
8247 list_del(&ioc->list);
8248 scsi_remove_host(shost);
8249 out_add_shost_fail:
f555e052 8250 scsi_host_put(shost);
635374e7
EM		 8251 return -ENODEV;
8252}
8253
8254#ifdef CONFIG_PM
8255/**
d5d135b3 8256 * _scsih_suspend - power management suspend main entry point
635374e7
EM		 8257 * @pdev: PCI device struct
8258 * @state: PM state change to (usually PCI_D3)
8259 *
8260 * Returns 0 success, anything else error.
8261 */
8262static int
d5d135b3 8263_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
635374e7
EM		 8264{
8265 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8266 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
c97951ec 8267 pci_power_t device_state;
635374e7 8268
e4750c98 8269 mpt2sas_base_stop_watchdog(ioc);
635374e7 8270 scsi_block_requests(shost);
3627dba5 8271 _scsih_ir_shutdown(ioc);
635374e7
EM		 8272 device_state = pci_choose_state(pdev, state);
8273 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
8274 "operating state [D%d]\n", ioc->name, pdev,
8275 pci_name(pdev), device_state);
8276
8277 mpt2sas_base_free_resources(ioc);
8278 pci_save_state(pdev);
8279 pci_disable_device(pdev);
8280 pci_set_power_state(pdev, device_state);
8281 return 0;
8282}
8283
8284/**
d5d135b3 8285 * _scsih_resume - power management resume main entry point
635374e7
EM		 8286 * @pdev: PCI device struct
8287 *
8288 * Returns 0 success, anything else error.
8289 */
8290static int
d5d135b3 8291_scsih_resume(struct pci_dev *pdev)
635374e7
EM		 8292{
8293 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8294 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
c97951ec 8295 pci_power_t device_state = pdev->current_state;
635374e7
EM		 8296 int r;
8297
8298 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
8299 "operating state [D%d]\n", ioc->name, pdev,
8300 pci_name(pdev), device_state);
8301
8302 pci_set_power_state(pdev, PCI_D0);
8303 pci_enable_wake(pdev, PCI_D0, 0);
8304 pci_restore_state(pdev);
8305 ioc->pdev = pdev;
8306 r = mpt2sas_base_map_resources(ioc);
8307 if (r)
8308 return r;
8309
8310 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
8311 scsi_unblock_requests(shost);
e4750c98 8312 mpt2sas_base_start_watchdog(ioc);
635374e7
EM		 8313 return 0;
8314}
8315#endif /* CONFIG_PM */
8316
ef7c80c1
KD		 8317/**
8318 * _scsih_pci_error_detected - Called when a PCI error is detected.
8319 * @pdev: PCI device struct
8320 * @state: PCI channel state
8321 *
8322 * Description: Called when a PCI error is detected.
8323 *
8324 * Return value:
8325 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8326 */
8327static pci_ers_result_t
8328_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8329{
8330 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8331 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8332
8333 printk(MPT2SAS_INFO_FMT "PCI error: detected callback, state(%d)!!\n",
8334 ioc->name, state);
8335
8336 switch (state) {
8337 case pci_channel_io_normal:
8338 return PCI_ERS_RESULT_CAN_RECOVER;
8339 case pci_channel_io_frozen:
3cb5469a
EM		 8340 /* Fatal error, prepare for slot reset */
8341 ioc->pci_error_recovery = 1;
ef7c80c1
KD		 8342 scsi_block_requests(ioc->shost);
8343 mpt2sas_base_stop_watchdog(ioc);
8344 mpt2sas_base_free_resources(ioc);
8345 return PCI_ERS_RESULT_NEED_RESET;
8346 case pci_channel_io_perm_failure:
3cb5469a
EM		 8347 /* Permanent error, prepare for device removal */
8348 ioc->pci_error_recovery = 1;
8349 mpt2sas_base_stop_watchdog(ioc);
8350 _scsih_flush_running_cmds(ioc);
ef7c80c1
KD		 8351 return PCI_ERS_RESULT_DISCONNECT;
8352 }
8353 return PCI_ERS_RESULT_NEED_RESET;
8354}
8355
8356/**
8357 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
8358 * @pdev: PCI device struct
8359 *
8360 * Description: This routine is called by the pci error recovery
8361 * code after the PCI slot has been reset, just before we
8362 * should resume normal operations.
8363 */
8364static pci_ers_result_t
8365_scsih_pci_slot_reset(struct pci_dev *pdev)
8366{
8367 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8368 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8369 int rc;
8370
8371 printk(MPT2SAS_INFO_FMT "PCI error: slot reset callback!!\n",
8372 ioc->name);
8373
3cb5469a 8374 ioc->pci_error_recovery = 0;
ef7c80c1 8375 ioc->pdev = pdev;
3cb5469a 8376 pci_restore_state(pdev);
ef7c80c1
KD		 8377 rc = mpt2sas_base_map_resources(ioc);
8378 if (rc)
8379 return PCI_ERS_RESULT_DISCONNECT;
8380
8381
8382 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
8383 FORCE_BIG_HAMMER);
8384
8385 printk(MPT2SAS_WARN_FMT "hard reset: %s\n", ioc->name,
8386 (rc == 0) ? "success" : "failed");
8387
8388 if (!rc)
8389 return PCI_ERS_RESULT_RECOVERED;
8390 else
8391 return PCI_ERS_RESULT_DISCONNECT;
8392}
8393
8394/**
8395 * _scsih_pci_resume() - resume normal ops after PCI reset
8396 * @pdev: pointer to PCI device
8397 *
8398 * Called when the error recovery driver tells us that its
8399 * OK to resume normal operation. Use completion to allow
8400 * halted scsi ops to resume.
8401 */
8402static void
8403_scsih_pci_resume(struct pci_dev *pdev)
8404{
8405 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8406 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8407
8408 printk(MPT2SAS_INFO_FMT "PCI error: resume callback!!\n", ioc->name);
8409
8410 pci_cleanup_aer_uncorrect_error_status(pdev);
8411 mpt2sas_base_start_watchdog(ioc);
8412 scsi_unblock_requests(ioc->shost);
8413}
8414
8415/**
8416 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
8417 * @pdev: pointer to PCI device
8418 */
8419static pci_ers_result_t
8420_scsih_pci_mmio_enabled(struct pci_dev *pdev)
8421{
8422 struct Scsi_Host *shost = pci_get_drvdata(pdev);
8423 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
8424
8425 printk(MPT2SAS_INFO_FMT "PCI error: mmio enabled callback!!\n",
8426 ioc->name);
8427
8428 /* TODO - dump whatever for debugging purposes */
8429
8430 /* Request a slot reset. */
8431 return PCI_ERS_RESULT_NEED_RESET;
8432}
8433
a55b2d21 8434static const struct pci_error_handlers _scsih_err_handler = {
ef7c80c1
KD		 8435 .error_detected = _scsih_pci_error_detected,
8436 .mmio_enabled = _scsih_pci_mmio_enabled,
8437 .slot_reset = _scsih_pci_slot_reset,
8438 .resume = _scsih_pci_resume,
8439};
635374e7
EM		 8440
8441static struct pci_driver scsih_driver = {
8442 .name = MPT2SAS_DRIVER_NAME,
8443 .id_table = scsih_pci_table,
d5d135b3 8444 .probe = _scsih_probe,
6f039790 8445 .remove = _scsih_remove,
744090d3 8446 .shutdown = _scsih_shutdown,
ef7c80c1 8447 .err_handler = &_scsih_err_handler,
635374e7 8448#ifdef CONFIG_PM
d5d135b3
EM		 8449 .suspend = _scsih_suspend,
8450 .resume = _scsih_resume,
635374e7
EM		 8451#endif
8452};
8453
f7c95ef0
KD		 8454/* raid transport support */
8455static struct raid_function_template mpt2sas_raid_functions = {
8456 .cookie = &scsih_driver_template,
8457 .is_raid = _scsih_is_raid,
8458 .get_resync = _scsih_get_resync,
8459 .get_state = _scsih_get_state,
8460};
635374e7
EM		 8461
8462/**
d5d135b3 8463 * _scsih_init - main entry point for this driver.
635374e7
EM		 8464 *
8465 * Returns 0 success, anything else error.
8466 */
8467static int __init
d5d135b3 8468_scsih_init(void)
635374e7
EM		 8469{
8470 int error;
8471
8472 mpt_ids = 0;
8473 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
8474 MPT2SAS_DRIVER_VERSION);
8475
8476 mpt2sas_transport_template =
8477 sas_attach_transport(&mpt2sas_transport_functions);
8478 if (!mpt2sas_transport_template)
8479 return -ENODEV;
f7c95ef0
KD		 8480 /* raid transport support */
8481 mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
8482 if (!mpt2sas_raid_template) {
8483 sas_release_transport(mpt2sas_transport_template);
8484 return -ENODEV;
8485 }
635374e7
EM		 8486
8487 mpt2sas_base_initialize_callback_handler();
8488
8489 /* queuecommand callback hander */
d5d135b3 8490 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
635374e7 8491
65155b37 8492 /* task management callback handler */
d5d135b3 8493 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
635374e7
EM		 8494
8495 /* base internal commands callback handler */
8496 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
921cd802 8497 port_enable_cb_idx = mpt2sas_base_register_callback_handler(
8498 mpt2sas_port_enable_done);
635374e7
EM		 8499
8500 /* transport internal commands callback handler */
8501 transport_cb_idx = mpt2sas_base_register_callback_handler(
8502 mpt2sas_transport_done);
8503
744090d3
KD		 8504 /* scsih internal commands callback handler */
8505 scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);
8506
635374e7
EM		 8507 /* configuration page API internal commands callback handler */
8508 config_cb_idx = mpt2sas_base_register_callback_handler(
8509 mpt2sas_config_done);
8510
8511 /* ctl module callback handler */
8512 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
8513
77e63ed4
KD		 8514 tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
8515 _scsih_tm_tr_complete);
f3eedd69
KD		 8516
8517 tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
8518 _scsih_tm_volume_tr_complete);
8519
77e63ed4
KD		 8520 tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
8521 _scsih_sas_control_complete);
8522
635374e7
EM		 8523 mpt2sas_ctl_init();
8524
8525 error = pci_register_driver(&scsih_driver);
f7c95ef0
KD		 8526 if (error) {
8527 /* raid transport support */
8528 raid_class_release(mpt2sas_raid_template);
635374e7 8529 sas_release_transport(mpt2sas_transport_template);
f7c95ef0 8530 }
635374e7
EM		 8531
8532 return error;
8533}
8534
8535/**
d5d135b3 8536 * _scsih_exit - exit point for this driver (when it is a module).
635374e7
EM		 8537 *
8538 * Returns 0 success, anything else error.
8539 */
8540static void __exit
d5d135b3 8541_scsih_exit(void)
635374e7
EM		 8542{
8543 printk(KERN_INFO "mpt2sas version %s unloading\n",
8544 MPT2SAS_DRIVER_VERSION);
8545
8546 pci_unregister_driver(&scsih_driver);
8547
f7c95ef0
KD		 8548 mpt2sas_ctl_exit();
8549
635374e7
EM		 8550 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
8551 mpt2sas_base_release_callback_handler(tm_cb_idx);
8552 mpt2sas_base_release_callback_handler(base_cb_idx);
921cd802 8553 mpt2sas_base_release_callback_handler(port_enable_cb_idx);
635374e7 8554 mpt2sas_base_release_callback_handler(transport_cb_idx);
744090d3 8555 mpt2sas_base_release_callback_handler(scsih_cb_idx);
635374e7
EM		 8556 mpt2sas_base_release_callback_handler(config_cb_idx);
8557 mpt2sas_base_release_callback_handler(ctl_cb_idx);
8558
77e63ed4 8559 mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
f3eedd69 8560 mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
77e63ed4
KD		 8561 mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
8562
f7c95ef0
KD		 8563 /* raid transport support */
8564 raid_class_release(mpt2sas_raid_template);
8565 sas_release_transport(mpt2sas_transport_template);
8566
635374e7
EM		 8567}
8568
d5d135b3
EM		 8569module_init(_scsih_init);
8570module_exit(_scsih_exit);
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