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authorEric Moore <eric.moore@lsi.com>2009-03-09 03:21:12 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-03-13 17:08:49 -0400
commit635374e7eb110e80d9918b8611198edd56a32975 (patch)
tree1c96f9dac921b0b26ee4e93ecd9c79a96fbc7ba6 /drivers/scsi/mpt2sas/mpt2sas_scsih.c
parentdec3f95959bff957f5bcbf16c2a2823f7e33d1e7 (diff)
[SCSI] mpt2sas v00.100.11.15
* This is new scsi lld device driver from LSI supporting the SAS 2.0 standard. I have split patchs by filename. * Here is list of new 6gb host controllers: LSI SAS2004 LSI SAS2008 LSI SAS2108 LSI SAS2116 * Here are the changes in the 4th posting of this patch set: (1) fix compile errors when SCSI_MPT2SAS_LOGGING is not enabled (2) add mpt2sas to the SCSI Mid Layer Makefile (3) append mpt2sas_ to the naming of all non-static functions (4) fix oops for SMP_PASSTHRU (5) doorbell algorithm imported changes from windows driver * Here are the changes in the 3rd posting of this patch set: (1) add readl following writel from the function that disables interrupts (2) replace 0xFFFFFFFFFFFFFFFFULL with ~0ULL (3) when calling pci_enable_msix, only pass one msix entry (instead of 15). (4) remove the "current HW implementation uses..... " comment in the sources (5) merged bug fix for SIGIO/POLLIN notifcation; reported by the storlib team. * Here are the changes in the 2nd posting of this patch set: (1) use little endian types in the mpi headers (2) merged in bug fix's from inhouse drivers. Signed-off-by: Eric Moore <eric.moore@lsi.com> Tested-by: peter Bogdanovic <pbog@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_scsih.c')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c5687
1 files changed, 5687 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
new file mode 100644
index 000000000000..50865a8e1a4f
--- /dev/null
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -0,0 +1,5687 @@
1/*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
5 * Copyright (C) 2007-2008 LSI Corporation
6 * (mailto:DL-MPTFusionLinux@lsi.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * NO WARRANTY
19 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
20 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
21 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
22 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
23 * solely responsible for determining the appropriateness of using and
24 * distributing the Program and assumes all risks associated with its
25 * exercise of rights under this Agreement, including but not limited to
26 * the risks and costs of program errors, damage to or loss of data,
27 * programs or equipment, and unavailability or interruption of operations.
28
29 * DISCLAIMER OF LIABILITY
30 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
31 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
35 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
36 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
37
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
41 * USA.
42 */
43
44#include <linux/version.h>
45#include <linux/module.h>
46#include <linux/kernel.h>
47#include <linux/init.h>
48#include <linux/errno.h>
49#include <linux/blkdev.h>
50#include <linux/sched.h>
51#include <linux/workqueue.h>
52#include <linux/delay.h>
53#include <linux/pci.h>
54#include <linux/interrupt.h>
55
56#include "mpt2sas_base.h"
57
58MODULE_AUTHOR(MPT2SAS_AUTHOR);
59MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
60MODULE_LICENSE("GPL");
61MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
62
63#define RAID_CHANNEL 1
64
65/* forward proto's */
66static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
67 struct _sas_node *sas_expander);
68static void _firmware_event_work(struct work_struct *work);
69
70/* global parameters */
71LIST_HEAD(ioc_list);
72
73/* local parameters */
74static u32 logging_level;
75static u8 scsi_io_cb_idx = -1;
76static u8 tm_cb_idx = -1;
77static u8 ctl_cb_idx = -1;
78static u8 base_cb_idx = -1;
79static u8 transport_cb_idx = -1;
80static u8 config_cb_idx = -1;
81static int mpt_ids;
82
83/* command line options */
84MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
85 "(default=0)");
86
87/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
88#define MPT2SAS_MAX_LUN (16895)
89static int max_lun = MPT2SAS_MAX_LUN;
90module_param(max_lun, int, 0);
91MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
92
93/**
94 * struct sense_info - common structure for obtaining sense keys
95 * @skey: sense key
96 * @asc: additional sense code
97 * @ascq: additional sense code qualifier
98 */
99struct sense_info {
100 u8 skey;
101 u8 asc;
102 u8 ascq;
103};
104
105
106#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
107/**
108 * struct fw_event_work - firmware event struct
109 * @list: link list framework
110 * @work: work object (ioc->fault_reset_work_q)
111 * @ioc: per adapter object
112 * @VF_ID: virtual function id
113 * @host_reset_handling: handling events during host reset
114 * @ignore: flag meaning this event has been marked to ignore
115 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
116 * @event_data: reply event data payload follows
117 *
118 * This object stored on ioc->fw_event_list.
119 */
120struct fw_event_work {
121 struct list_head list;
122 struct delayed_work work;
123 struct MPT2SAS_ADAPTER *ioc;
124 u8 VF_ID;
125 u8 host_reset_handling;
126 u8 ignore;
127 u16 event;
128 void *event_data;
129};
130
131/**
132 * struct _scsi_io_transfer - scsi io transfer
133 * @handle: sas device handle (assigned by firmware)
134 * @is_raid: flag set for hidden raid components
135 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
136 * @data_length: data transfer length
137 * @data_dma: dma pointer to data
138 * @sense: sense data
139 * @lun: lun number
140 * @cdb_length: cdb length
141 * @cdb: cdb contents
142 * @valid_reply: flag set for reply message
143 * @timeout: timeout for this command
144 * @sense_length: sense length
145 * @ioc_status: ioc status
146 * @scsi_state: scsi state
147 * @scsi_status: scsi staus
148 * @log_info: log information
149 * @transfer_length: data length transfer when there is a reply message
150 *
151 * Used for sending internal scsi commands to devices within this module.
152 * Refer to _scsi_send_scsi_io().
153 */
154struct _scsi_io_transfer {
155 u16 handle;
156 u8 is_raid;
157 enum dma_data_direction dir;
158 u32 data_length;
159 dma_addr_t data_dma;
160 u8 sense[SCSI_SENSE_BUFFERSIZE];
161 u32 lun;
162 u8 cdb_length;
163 u8 cdb[32];
164 u8 timeout;
165 u8 valid_reply;
166 /* the following bits are only valid when 'valid_reply = 1' */
167 u32 sense_length;
168 u16 ioc_status;
169 u8 scsi_state;
170 u8 scsi_status;
171 u32 log_info;
172 u32 transfer_length;
173};
174
175/*
176 * The pci device ids are defined in mpi/mpi2_cnfg.h.
177 */
178static struct pci_device_id scsih_pci_table[] = {
179 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
180 PCI_ANY_ID, PCI_ANY_ID },
181 /* Falcon ~ 2008*/
182 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
183 PCI_ANY_ID, PCI_ANY_ID },
184 /* Liberator ~ 2108 */
185 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
186 PCI_ANY_ID, PCI_ANY_ID },
187 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
188 PCI_ANY_ID, PCI_ANY_ID },
189 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
190 PCI_ANY_ID, PCI_ANY_ID },
191 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
192 PCI_ANY_ID, PCI_ANY_ID },
193 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
194 PCI_ANY_ID, PCI_ANY_ID },
195 {0} /* Terminating entry */
196};
197MODULE_DEVICE_TABLE(pci, scsih_pci_table);
198
199/**
200 * scsih_set_debug_level - global setting of ioc->logging_level.
201 *
202 * Note: The logging levels are defined in mpt2sas_debug.h.
203 */
204static int
205scsih_set_debug_level(const char *val, struct kernel_param *kp)
206{
207 int ret = param_set_int(val, kp);
208 struct MPT2SAS_ADAPTER *ioc;
209
210 if (ret)
211 return ret;
212
213 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
214 list_for_each_entry(ioc, &ioc_list, list)
215 ioc->logging_level = logging_level;
216 return 0;
217}
218module_param_call(logging_level, scsih_set_debug_level, param_get_int,
219 &logging_level, 0644);
220
221/**
222 * _scsih_srch_boot_sas_address - search based on sas_address
223 * @sas_address: sas address
224 * @boot_device: boot device object from bios page 2
225 *
226 * Returns 1 when there's a match, 0 means no match.
227 */
228static inline int
229_scsih_srch_boot_sas_address(u64 sas_address,
230 Mpi2BootDeviceSasWwid_t *boot_device)
231{
232 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
233}
234
235/**
236 * _scsih_srch_boot_device_name - search based on device name
237 * @device_name: device name specified in INDENTIFY fram
238 * @boot_device: boot device object from bios page 2
239 *
240 * Returns 1 when there's a match, 0 means no match.
241 */
242static inline int
243_scsih_srch_boot_device_name(u64 device_name,
244 Mpi2BootDeviceDeviceName_t *boot_device)
245{
246 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
247}
248
249/**
250 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
251 * @enclosure_logical_id: enclosure logical id
252 * @slot_number: slot number
253 * @boot_device: boot device object from bios page 2
254 *
255 * Returns 1 when there's a match, 0 means no match.
256 */
257static inline int
258_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
259 Mpi2BootDeviceEnclosureSlot_t *boot_device)
260{
261 return (enclosure_logical_id == le64_to_cpu(boot_device->
262 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
263 SlotNumber)) ? 1 : 0;
264}
265
266/**
267 * _scsih_is_boot_device - search for matching boot device.
268 * @sas_address: sas address
269 * @device_name: device name specified in INDENTIFY fram
270 * @enclosure_logical_id: enclosure logical id
271 * @slot_number: slot number
272 * @form: specifies boot device form
273 * @boot_device: boot device object from bios page 2
274 *
275 * Returns 1 when there's a match, 0 means no match.
276 */
277static int
278_scsih_is_boot_device(u64 sas_address, u64 device_name,
279 u64 enclosure_logical_id, u16 slot, u8 form,
280 Mpi2BiosPage2BootDevice_t *boot_device)
281{
282 int rc = 0;
283
284 switch (form) {
285 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
286 if (!sas_address)
287 break;
288 rc = _scsih_srch_boot_sas_address(
289 sas_address, &boot_device->SasWwid);
290 break;
291 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
292 if (!enclosure_logical_id)
293 break;
294 rc = _scsih_srch_boot_encl_slot(
295 enclosure_logical_id,
296 slot, &boot_device->EnclosureSlot);
297 break;
298 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
299 if (!device_name)
300 break;
301 rc = _scsih_srch_boot_device_name(
302 device_name, &boot_device->DeviceName);
303 break;
304 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
305 break;
306 }
307
308 return rc;
309}
310
311/**
312 * _scsih_determine_boot_device - determine boot device.
313 * @ioc: per adapter object
314 * @device: either sas_device or raid_device object
315 * @is_raid: [flag] 1 = raid object, 0 = sas object
316 *
317 * Determines whether this device should be first reported device to
318 * to scsi-ml or sas transport, this purpose is for persistant boot device.
319 * There are primary, alternate, and current entries in bios page 2. The order
320 * priority is primary, alternate, then current. This routine saves
321 * the corresponding device object and is_raid flag in the ioc object.
322 * The saved data to be used later in _scsih_probe_boot_devices().
323 */
324static void
325_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
326 void *device, u8 is_raid)
327{
328 struct _sas_device *sas_device;
329 struct _raid_device *raid_device;
330 u64 sas_address;
331 u64 device_name;
332 u64 enclosure_logical_id;
333 u16 slot;
334
335 /* only process this function when driver loads */
336 if (!ioc->wait_for_port_enable_to_complete)
337 return;
338
339 if (!is_raid) {
340 sas_device = device;
341 sas_address = sas_device->sas_address;
342 device_name = sas_device->device_name;
343 enclosure_logical_id = sas_device->enclosure_logical_id;
344 slot = sas_device->slot;
345 } else {
346 raid_device = device;
347 sas_address = raid_device->wwid;
348 device_name = 0;
349 enclosure_logical_id = 0;
350 slot = 0;
351 }
352
353 if (!ioc->req_boot_device.device) {
354 if (_scsih_is_boot_device(sas_address, device_name,
355 enclosure_logical_id, slot,
356 (ioc->bios_pg2.ReqBootDeviceForm &
357 MPI2_BIOSPAGE2_FORM_MASK),
358 &ioc->bios_pg2.RequestedBootDevice)) {
359 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
360 "%s: req_boot_device(0x%016llx)\n",
361 ioc->name, __func__,
362 (unsigned long long)sas_address));
363 ioc->req_boot_device.device = device;
364 ioc->req_boot_device.is_raid = is_raid;
365 }
366 }
367
368 if (!ioc->req_alt_boot_device.device) {
369 if (_scsih_is_boot_device(sas_address, device_name,
370 enclosure_logical_id, slot,
371 (ioc->bios_pg2.ReqAltBootDeviceForm &
372 MPI2_BIOSPAGE2_FORM_MASK),
373 &ioc->bios_pg2.RequestedAltBootDevice)) {
374 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
375 "%s: req_alt_boot_device(0x%016llx)\n",
376 ioc->name, __func__,
377 (unsigned long long)sas_address));
378 ioc->req_alt_boot_device.device = device;
379 ioc->req_alt_boot_device.is_raid = is_raid;
380 }
381 }
382
383 if (!ioc->current_boot_device.device) {
384 if (_scsih_is_boot_device(sas_address, device_name,
385 enclosure_logical_id, slot,
386 (ioc->bios_pg2.CurrentBootDeviceForm &
387 MPI2_BIOSPAGE2_FORM_MASK),
388 &ioc->bios_pg2.CurrentBootDevice)) {
389 dinitprintk(ioc, printk(MPT2SAS_DEBUG_FMT
390 "%s: current_boot_device(0x%016llx)\n",
391 ioc->name, __func__,
392 (unsigned long long)sas_address));
393 ioc->current_boot_device.device = device;
394 ioc->current_boot_device.is_raid = is_raid;
395 }
396 }
397}
398
399/**
400 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
401 * @ioc: per adapter object
402 * @sas_address: sas address
403 * Context: Calling function should acquire ioc->sas_device_lock
404 *
405 * This searches for sas_device based on sas_address, then return sas_device
406 * object.
407 */
408struct _sas_device *
409mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
410 u64 sas_address)
411{
412 struct _sas_device *sas_device, *r;
413
414 r = NULL;
415 /* check the sas_device_init_list */
416 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
417 list) {
418 if (sas_device->sas_address != sas_address)
419 continue;
420 r = sas_device;
421 goto out;
422 }
423
424 /* then check the sas_device_list */
425 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
426 if (sas_device->sas_address != sas_address)
427 continue;
428 r = sas_device;
429 goto out;
430 }
431 out:
432 return r;
433}
434
435/**
436 * _scsih_sas_device_find_by_handle - sas device search
437 * @ioc: per adapter object
438 * @handle: sas device handle (assigned by firmware)
439 * Context: Calling function should acquire ioc->sas_device_lock
440 *
441 * This searches for sas_device based on sas_address, then return sas_device
442 * object.
443 */
444static struct _sas_device *
445_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
446{
447 struct _sas_device *sas_device, *r;
448
449 r = NULL;
450 if (ioc->wait_for_port_enable_to_complete) {
451 list_for_each_entry(sas_device, &ioc->sas_device_init_list,
452 list) {
453 if (sas_device->handle != handle)
454 continue;
455 r = sas_device;
456 goto out;
457 }
458 } else {
459 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
460 if (sas_device->handle != handle)
461 continue;
462 r = sas_device;
463 goto out;
464 }
465 }
466
467 out:
468 return r;
469}
470
471/**
472 * _scsih_sas_device_remove - remove sas_device from list.
473 * @ioc: per adapter object
474 * @sas_device: the sas_device object
475 * Context: This function will acquire ioc->sas_device_lock.
476 *
477 * Removing object and freeing associated memory from the ioc->sas_device_list.
478 */
479static void
480_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
481 struct _sas_device *sas_device)
482{
483 unsigned long flags;
484
485 spin_lock_irqsave(&ioc->sas_device_lock, flags);
486 list_del(&sas_device->list);
487 memset(sas_device, 0, sizeof(struct _sas_device));
488 kfree(sas_device);
489 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
490}
491
492/**
493 * _scsih_sas_device_add - insert sas_device to the list.
494 * @ioc: per adapter object
495 * @sas_device: the sas_device object
496 * Context: This function will acquire ioc->sas_device_lock.
497 *
498 * Adding new object to the ioc->sas_device_list.
499 */
500static void
501_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
502 struct _sas_device *sas_device)
503{
504 unsigned long flags;
505 u16 handle, parent_handle;
506 u64 sas_address;
507
508 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
509 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
510 sas_device->handle, (unsigned long long)sas_device->sas_address));
511
512 spin_lock_irqsave(&ioc->sas_device_lock, flags);
513 list_add_tail(&sas_device->list, &ioc->sas_device_list);
514 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
515
516 handle = sas_device->handle;
517 parent_handle = sas_device->parent_handle;
518 sas_address = sas_device->sas_address;
519 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
520 _scsih_sas_device_remove(ioc, sas_device);
521 } else if (!sas_device->starget) {
522 mpt2sas_transport_port_remove(ioc, sas_address, parent_handle);
523 _scsih_sas_device_remove(ioc, sas_device);
524 }
525}
526
527/**
528 * _scsih_sas_device_init_add - insert sas_device to the list.
529 * @ioc: per adapter object
530 * @sas_device: the sas_device object
531 * Context: This function will acquire ioc->sas_device_lock.
532 *
533 * Adding new object at driver load time to the ioc->sas_device_init_list.
534 */
535static void
536_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
537 struct _sas_device *sas_device)
538{
539 unsigned long flags;
540
541 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
542 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
543 sas_device->handle, (unsigned long long)sas_device->sas_address));
544
545 spin_lock_irqsave(&ioc->sas_device_lock, flags);
546 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
547 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
548 _scsih_determine_boot_device(ioc, sas_device, 0);
549}
550
551/**
552 * mpt2sas_scsih_expander_find_by_handle - expander device search
553 * @ioc: per adapter object
554 * @handle: expander handle (assigned by firmware)
555 * Context: Calling function should acquire ioc->sas_device_lock
556 *
557 * This searches for expander device based on handle, then returns the
558 * sas_node object.
559 */
560struct _sas_node *
561mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
562{
563 struct _sas_node *sas_expander, *r;
564
565 r = NULL;
566 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
567 if (sas_expander->handle != handle)
568 continue;
569 r = sas_expander;
570 goto out;
571 }
572 out:
573 return r;
574}
575
576/**
577 * _scsih_raid_device_find_by_id - raid device search
578 * @ioc: per adapter object
579 * @id: sas device target id
580 * @channel: sas device channel
581 * Context: Calling function should acquire ioc->raid_device_lock
582 *
583 * This searches for raid_device based on target id, then return raid_device
584 * object.
585 */
586static struct _raid_device *
587_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
588{
589 struct _raid_device *raid_device, *r;
590
591 r = NULL;
592 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
593 if (raid_device->id == id && raid_device->channel == channel) {
594 r = raid_device;
595 goto out;
596 }
597 }
598
599 out:
600 return r;
601}
602
603/**
604 * _scsih_raid_device_find_by_handle - raid device search
605 * @ioc: per adapter object
606 * @handle: sas device handle (assigned by firmware)
607 * Context: Calling function should acquire ioc->raid_device_lock
608 *
609 * This searches for raid_device based on handle, then return raid_device
610 * object.
611 */
612static struct _raid_device *
613_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
614{
615 struct _raid_device *raid_device, *r;
616
617 r = NULL;
618 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
619 if (raid_device->handle != handle)
620 continue;
621 r = raid_device;
622 goto out;
623 }
624
625 out:
626 return r;
627}
628
629/**
630 * _scsih_raid_device_find_by_wwid - raid device search
631 * @ioc: per adapter object
632 * @handle: sas device handle (assigned by firmware)
633 * Context: Calling function should acquire ioc->raid_device_lock
634 *
635 * This searches for raid_device based on wwid, then return raid_device
636 * object.
637 */
638static struct _raid_device *
639_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
640{
641 struct _raid_device *raid_device, *r;
642
643 r = NULL;
644 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
645 if (raid_device->wwid != wwid)
646 continue;
647 r = raid_device;
648 goto out;
649 }
650
651 out:
652 return r;
653}
654
655/**
656 * _scsih_raid_device_add - add raid_device object
657 * @ioc: per adapter object
658 * @raid_device: raid_device object
659 *
660 * This is added to the raid_device_list link list.
661 */
662static void
663_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
664 struct _raid_device *raid_device)
665{
666 unsigned long flags;
667
668 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle"
669 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
670 raid_device->handle, (unsigned long long)raid_device->wwid));
671
672 spin_lock_irqsave(&ioc->raid_device_lock, flags);
673 list_add_tail(&raid_device->list, &ioc->raid_device_list);
674 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
675}
676
677/**
678 * _scsih_raid_device_remove - delete raid_device object
679 * @ioc: per adapter object
680 * @raid_device: raid_device object
681 *
682 * This is removed from the raid_device_list link list.
683 */
684static void
685_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
686 struct _raid_device *raid_device)
687{
688 unsigned long flags;
689
690 spin_lock_irqsave(&ioc->raid_device_lock, flags);
691 list_del(&raid_device->list);
692 memset(raid_device, 0, sizeof(struct _raid_device));
693 kfree(raid_device);
694 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
695}
696
697/**
698 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
699 * @ioc: per adapter object
700 * @sas_address: sas address
701 * Context: Calling function should acquire ioc->sas_node_lock.
702 *
703 * This searches for expander device based on sas_address, then returns the
704 * sas_node object.
705 */
706struct _sas_node *
707mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
708 u64 sas_address)
709{
710 struct _sas_node *sas_expander, *r;
711
712 r = NULL;
713 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
714 if (sas_expander->sas_address != sas_address)
715 continue;
716 r = sas_expander;
717 goto out;
718 }
719 out:
720 return r;
721}
722
723/**
724 * _scsih_expander_node_add - insert expander device to the list.
725 * @ioc: per adapter object
726 * @sas_expander: the sas_device object
727 * Context: This function will acquire ioc->sas_node_lock.
728 *
729 * Adding new object to the ioc->sas_expander_list.
730 *
731 * Return nothing.
732 */
733static void
734_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
735 struct _sas_node *sas_expander)
736{
737 unsigned long flags;
738
739 spin_lock_irqsave(&ioc->sas_node_lock, flags);
740 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
741 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
742}
743
744/**
745 * _scsih_is_end_device - determines if device is an end device
746 * @device_info: bitfield providing information about the device.
747 * Context: none
748 *
749 * Returns 1 if end device.
750 */
751static int
752_scsih_is_end_device(u32 device_info)
753{
754 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
755 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
756 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
757 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
758 return 1;
759 else
760 return 0;
761}
762
763/**
764 * _scsih_scsi_lookup_get - returns scmd entry
765 * @ioc: per adapter object
766 * @smid: system request message index
767 * Context: This function will acquire ioc->scsi_lookup_lock.
768 *
769 * Returns the smid stored scmd pointer.
770 */
771static struct scsi_cmnd *
772_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
773{
774 unsigned long flags;
775 struct scsi_cmnd *scmd;
776
777 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
778 scmd = ioc->scsi_lookup[smid - 1].scmd;
779 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
780 return scmd;
781}
782
783/**
784 * mptscsih_getclear_scsi_lookup - returns scmd entry
785 * @ioc: per adapter object
786 * @smid: system request message index
787 * Context: This function will acquire ioc->scsi_lookup_lock.
788 *
789 * Returns the smid stored scmd pointer, as well as clearing the scmd pointer.
790 */
791static struct scsi_cmnd *
792_scsih_scsi_lookup_getclear(struct MPT2SAS_ADAPTER *ioc, u16 smid)
793{
794 unsigned long flags;
795 struct scsi_cmnd *scmd;
796
797 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
798 scmd = ioc->scsi_lookup[smid - 1].scmd;
799 ioc->scsi_lookup[smid - 1].scmd = NULL;
800 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
801 return scmd;
802}
803
804/**
805 * _scsih_scsi_lookup_set - updates scmd entry in lookup
806 * @ioc: per adapter object
807 * @smid: system request message index
808 * @scmd: pointer to scsi command object
809 * Context: This function will acquire ioc->scsi_lookup_lock.
810 *
811 * This will save scmd pointer in the scsi_lookup array.
812 *
813 * Return nothing.
814 */
815static void
816_scsih_scsi_lookup_set(struct MPT2SAS_ADAPTER *ioc, u16 smid,
817 struct scsi_cmnd *scmd)
818{
819 unsigned long flags;
820
821 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
822 ioc->scsi_lookup[smid - 1].scmd = scmd;
823 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
824}
825
826/**
827 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
828 * @ioc: per adapter object
829 * @smid: system request message index
830 * @scmd: pointer to scsi command object
831 * Context: This function will acquire ioc->scsi_lookup_lock.
832 *
833 * This will search for a scmd pointer in the scsi_lookup array,
834 * returning the revelent smid. A returned value of zero means invalid.
835 */
836static u16
837_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
838 *scmd)
839{
840 u16 smid;
841 unsigned long flags;
842 int i;
843
844 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
845 smid = 0;
846 for (i = 0; i < ioc->request_depth; i++) {
847 if (ioc->scsi_lookup[i].scmd == scmd) {
848 smid = i + 1;
849 goto out;
850 }
851 }
852 out:
853 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
854 return smid;
855}
856
857/**
858 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
859 * @ioc: per adapter object
860 * @id: target id
861 * @channel: channel
862 * Context: This function will acquire ioc->scsi_lookup_lock.
863 *
864 * This will search for a matching channel:id in the scsi_lookup array,
865 * returning 1 if found.
866 */
867static u8
868_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
869 int channel)
870{
871 u8 found;
872 unsigned long flags;
873 int i;
874
875 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
876 found = 0;
877 for (i = 0 ; i < ioc->request_depth; i++) {
878 if (ioc->scsi_lookup[i].scmd &&
879 (ioc->scsi_lookup[i].scmd->device->id == id &&
880 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
881 found = 1;
882 goto out;
883 }
884 }
885 out:
886 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
887 return found;
888}
889
890/**
891 * _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
892 * @ioc: per adapter object
893 * @smid: system request message index
894 *
895 * Returns phys pointer to chain buffer.
896 */
897static dma_addr_t
898_scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
899{
900 return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
901 ioc->chains_needed_per_io));
902}
903
904/**
905 * _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
906 * @ioc: per adapter object
907 * @smid: system request message index
908 *
909 * Returns virt pointer to chain buffer.
910 */
911static void *
912_scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
913{
914 return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
915 ioc->chains_needed_per_io)));
916}
917
918/**
919 * _scsih_build_scatter_gather - main sg creation routine
920 * @ioc: per adapter object
921 * @scmd: scsi command
922 * @smid: system request message index
923 * Context: none.
924 *
925 * The main routine that builds scatter gather table from a given
926 * scsi request sent via the .queuecommand main handler.
927 *
928 * Returns 0 success, anything else error
929 */
930static int
931_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
932 struct scsi_cmnd *scmd, u16 smid)
933{
934 Mpi2SCSIIORequest_t *mpi_request;
935 dma_addr_t chain_dma;
936 struct scatterlist *sg_scmd;
937 void *sg_local, *chain;
938 u32 chain_offset;
939 u32 chain_length;
940 u32 chain_flags;
941 u32 sges_left;
942 u32 sges_in_segment;
943 u32 sgl_flags;
944 u32 sgl_flags_last_element;
945 u32 sgl_flags_end_buffer;
946
947 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
948
949 /* init scatter gather flags */
950 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
951 if (scmd->sc_data_direction == DMA_TO_DEVICE)
952 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
953 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
954 << MPI2_SGE_FLAGS_SHIFT;
955 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
956 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
957 << MPI2_SGE_FLAGS_SHIFT;
958 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
959
960 sg_scmd = scsi_sglist(scmd);
961 sges_left = scsi_dma_map(scmd);
962 if (!sges_left) {
963 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
964 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
965 return -ENOMEM;
966 }
967
968 sg_local = &mpi_request->SGL;
969 sges_in_segment = ioc->max_sges_in_main_message;
970 if (sges_left <= sges_in_segment)
971 goto fill_in_last_segment;
972
973 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
974 (sges_in_segment * ioc->sge_size))/4;
975
976 /* fill in main message segment when there is a chain following */
977 while (sges_in_segment) {
978 if (sges_in_segment == 1)
979 ioc->base_add_sg_single(sg_local,
980 sgl_flags_last_element | sg_dma_len(sg_scmd),
981 sg_dma_address(sg_scmd));
982 else
983 ioc->base_add_sg_single(sg_local, sgl_flags |
984 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
985 sg_scmd = sg_next(sg_scmd);
986 sg_local += ioc->sge_size;
987 sges_left--;
988 sges_in_segment--;
989 }
990
991 /* initializing the chain flags and pointers */
992 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
993 chain = _scsih_get_chain_buffer(ioc, smid);
994 chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
995 do {
996 sges_in_segment = (sges_left <=
997 ioc->max_sges_in_chain_message) ? sges_left :
998 ioc->max_sges_in_chain_message;
999 chain_offset = (sges_left == sges_in_segment) ?
1000 0 : (sges_in_segment * ioc->sge_size)/4;
1001 chain_length = sges_in_segment * ioc->sge_size;
1002 if (chain_offset) {
1003 chain_offset = chain_offset <<
1004 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1005 chain_length += ioc->sge_size;
1006 }
1007 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1008 chain_length, chain_dma);
1009 sg_local = chain;
1010 if (!chain_offset)
1011 goto fill_in_last_segment;
1012
1013 /* fill in chain segments */
1014 while (sges_in_segment) {
1015 if (sges_in_segment == 1)
1016 ioc->base_add_sg_single(sg_local,
1017 sgl_flags_last_element |
1018 sg_dma_len(sg_scmd),
1019 sg_dma_address(sg_scmd));
1020 else
1021 ioc->base_add_sg_single(sg_local, sgl_flags |
1022 sg_dma_len(sg_scmd),
1023 sg_dma_address(sg_scmd));
1024 sg_scmd = sg_next(sg_scmd);
1025 sg_local += ioc->sge_size;
1026 sges_left--;
1027 sges_in_segment--;
1028 }
1029
1030 chain_dma += ioc->request_sz;
1031 chain += ioc->request_sz;
1032 } while (1);
1033
1034
1035 fill_in_last_segment:
1036
1037 /* fill the last segment */
1038 while (sges_left) {
1039 if (sges_left == 1)
1040 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1041 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1042 else
1043 ioc->base_add_sg_single(sg_local, sgl_flags |
1044 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1045 sg_scmd = sg_next(sg_scmd);
1046 sg_local += ioc->sge_size;
1047 sges_left--;
1048 }
1049
1050 return 0;
1051}
1052
1053/**
1054 * scsih_change_queue_depth - setting device queue depth
1055 * @sdev: scsi device struct
1056 * @qdepth: requested queue depth
1057 *
1058 * Returns queue depth.
1059 */
1060static int
1061scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
1062{
1063 struct Scsi_Host *shost = sdev->host;
1064 int max_depth;
1065 int tag_type;
1066
1067 max_depth = shost->can_queue;
1068 if (!sdev->tagged_supported)
1069 max_depth = 1;
1070 if (qdepth > max_depth)
1071 qdepth = max_depth;
1072 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1073 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1074
1075 if (sdev->inquiry_len > 7)
1076 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1077 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1078 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1079 sdev->ordered_tags, sdev->scsi_level,
1080 (sdev->inquiry[7] & 2) >> 1);
1081
1082 return sdev->queue_depth;
1083}
1084
1085/**
1086 * scsih_change_queue_depth - changing device queue tag type
1087 * @sdev: scsi device struct
1088 * @tag_type: requested tag type
1089 *
1090 * Returns queue tag type.
1091 */
1092static int
1093scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
1094{
1095 if (sdev->tagged_supported) {
1096 scsi_set_tag_type(sdev, tag_type);
1097 if (tag_type)
1098 scsi_activate_tcq(sdev, sdev->queue_depth);
1099 else
1100 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1101 } else
1102 tag_type = 0;
1103
1104 return tag_type;
1105}
1106
1107/**
1108 * scsih_target_alloc - target add routine
1109 * @starget: scsi target struct
1110 *
1111 * Returns 0 if ok. Any other return is assumed to be an error and
1112 * the device is ignored.
1113 */
1114static int
1115scsih_target_alloc(struct scsi_target *starget)
1116{
1117 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1118 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1119 struct MPT2SAS_TARGET *sas_target_priv_data;
1120 struct _sas_device *sas_device;
1121 struct _raid_device *raid_device;
1122 unsigned long flags;
1123 struct sas_rphy *rphy;
1124
1125 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1126 if (!sas_target_priv_data)
1127 return -ENOMEM;
1128
1129 starget->hostdata = sas_target_priv_data;
1130 sas_target_priv_data->starget = starget;
1131 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1132
1133 /* RAID volumes */
1134 if (starget->channel == RAID_CHANNEL) {
1135 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1136 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1137 starget->channel);
1138 if (raid_device) {
1139 sas_target_priv_data->handle = raid_device->handle;
1140 sas_target_priv_data->sas_address = raid_device->wwid;
1141 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1142 raid_device->starget = starget;
1143 }
1144 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1145 return 0;
1146 }
1147
1148 /* sas/sata devices */
1149 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1150 rphy = dev_to_rphy(starget->dev.parent);
1151 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1152 rphy->identify.sas_address);
1153
1154 if (sas_device) {
1155 sas_target_priv_data->handle = sas_device->handle;
1156 sas_target_priv_data->sas_address = sas_device->sas_address;
1157 sas_device->starget = starget;
1158 sas_device->id = starget->id;
1159 sas_device->channel = starget->channel;
1160 if (sas_device->hidden_raid_component)
1161 sas_target_priv_data->flags |=
1162 MPT_TARGET_FLAGS_RAID_COMPONENT;
1163 }
1164 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1165
1166 return 0;
1167}
1168
1169/**
1170 * scsih_target_destroy - target destroy routine
1171 * @starget: scsi target struct
1172 *
1173 * Returns nothing.
1174 */
1175static void
1176scsih_target_destroy(struct scsi_target *starget)
1177{
1178 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1179 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1180 struct MPT2SAS_TARGET *sas_target_priv_data;
1181 struct _sas_device *sas_device;
1182 struct _raid_device *raid_device;
1183 unsigned long flags;
1184 struct sas_rphy *rphy;
1185
1186 sas_target_priv_data = starget->hostdata;
1187 if (!sas_target_priv_data)
1188 return;
1189
1190 if (starget->channel == RAID_CHANNEL) {
1191 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1192 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1193 starget->channel);
1194 if (raid_device) {
1195 raid_device->starget = NULL;
1196 raid_device->sdev = NULL;
1197 }
1198 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1199 goto out;
1200 }
1201
1202 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1203 rphy = dev_to_rphy(starget->dev.parent);
1204 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1205 rphy->identify.sas_address);
1206 if (sas_device)
1207 sas_device->starget = NULL;
1208
1209 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1210
1211 out:
1212 kfree(sas_target_priv_data);
1213 starget->hostdata = NULL;
1214}
1215
1216/**
1217 * scsih_slave_alloc - device add routine
1218 * @sdev: scsi device struct
1219 *
1220 * Returns 0 if ok. Any other return is assumed to be an error and
1221 * the device is ignored.
1222 */
1223static int
1224scsih_slave_alloc(struct scsi_device *sdev)
1225{
1226 struct Scsi_Host *shost;
1227 struct MPT2SAS_ADAPTER *ioc;
1228 struct MPT2SAS_TARGET *sas_target_priv_data;
1229 struct MPT2SAS_DEVICE *sas_device_priv_data;
1230 struct scsi_target *starget;
1231 struct _raid_device *raid_device;
1232 struct _sas_device *sas_device;
1233 unsigned long flags;
1234
1235 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1236 if (!sas_device_priv_data)
1237 return -ENOMEM;
1238
1239 sas_device_priv_data->lun = sdev->lun;
1240 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1241
1242 starget = scsi_target(sdev);
1243 sas_target_priv_data = starget->hostdata;
1244 sas_target_priv_data->num_luns++;
1245 sas_device_priv_data->sas_target = sas_target_priv_data;
1246 sdev->hostdata = sas_device_priv_data;
1247 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1248 sdev->no_uld_attach = 1;
1249
1250 shost = dev_to_shost(&starget->dev);
1251 ioc = shost_priv(shost);
1252 if (starget->channel == RAID_CHANNEL) {
1253 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1254 raid_device = _scsih_raid_device_find_by_id(ioc,
1255 starget->id, starget->channel);
1256 if (raid_device)
1257 raid_device->sdev = sdev; /* raid is single lun */
1258 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1259 } else {
1260 /* set TLR bit for SSP devices */
1261 if (!(ioc->facts.IOCCapabilities &
1262 MPI2_IOCFACTS_CAPABILITY_TLR))
1263 goto out;
1264 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1265 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1266 sas_device_priv_data->sas_target->sas_address);
1267 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1268 if (sas_device && sas_device->device_info &
1269 MPI2_SAS_DEVICE_INFO_SSP_TARGET)
1270 sas_device_priv_data->flags |= MPT_DEVICE_TLR_ON;
1271 }
1272
1273 out:
1274 return 0;
1275}
1276
1277/**
1278 * scsih_slave_destroy - device destroy routine
1279 * @sdev: scsi device struct
1280 *
1281 * Returns nothing.
1282 */
1283static void
1284scsih_slave_destroy(struct scsi_device *sdev)
1285{
1286 struct MPT2SAS_TARGET *sas_target_priv_data;
1287 struct scsi_target *starget;
1288
1289 if (!sdev->hostdata)
1290 return;
1291
1292 starget = scsi_target(sdev);
1293 sas_target_priv_data = starget->hostdata;
1294 sas_target_priv_data->num_luns--;
1295 kfree(sdev->hostdata);
1296 sdev->hostdata = NULL;
1297}
1298
1299/**
1300 * scsih_display_sata_capabilities - sata capabilities
1301 * @ioc: per adapter object
1302 * @sas_device: the sas_device object
1303 * @sdev: scsi device struct
1304 */
1305static void
1306scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
1307 struct _sas_device *sas_device, struct scsi_device *sdev)
1308{
1309 Mpi2ConfigReply_t mpi_reply;
1310 Mpi2SasDevicePage0_t sas_device_pg0;
1311 u32 ioc_status;
1312 u16 flags;
1313 u32 device_info;
1314
1315 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1316 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1317 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1318 ioc->name, __FILE__, __LINE__, __func__);
1319 return;
1320 }
1321
1322 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1323 MPI2_IOCSTATUS_MASK;
1324 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1325 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1326 ioc->name, __FILE__, __LINE__, __func__);
1327 return;
1328 }
1329
1330 flags = le16_to_cpu(sas_device_pg0.Flags);
1331 device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
1332
1333 sdev_printk(KERN_INFO, sdev,
1334 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1335 "sw_preserve(%s)\n",
1336 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1337 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1338 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1339 "n",
1340 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1341 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1342 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1343}
1344
1345/**
1346 * _scsih_get_volume_capabilities - volume capabilities
1347 * @ioc: per adapter object
1348 * @sas_device: the raid_device object
1349 */
1350static void
1351_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1352 struct _raid_device *raid_device)
1353{
1354 Mpi2RaidVolPage0_t *vol_pg0;
1355 Mpi2RaidPhysDiskPage0_t pd_pg0;
1356 Mpi2SasDevicePage0_t sas_device_pg0;
1357 Mpi2ConfigReply_t mpi_reply;
1358 u16 sz;
1359 u8 num_pds;
1360
1361 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1362 &num_pds)) || !num_pds) {
1363 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1364 ioc->name, __FILE__, __LINE__, __func__);
1365 return;
1366 }
1367
1368 raid_device->num_pds = num_pds;
1369 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1370 sizeof(Mpi2RaidVol0PhysDisk_t));
1371 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1372 if (!vol_pg0) {
1373 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1374 ioc->name, __FILE__, __LINE__, __func__);
1375 return;
1376 }
1377
1378 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1379 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1380 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1381 ioc->name, __FILE__, __LINE__, __func__);
1382 kfree(vol_pg0);
1383 return;
1384 }
1385
1386 raid_device->volume_type = vol_pg0->VolumeType;
1387
1388 /* figure out what the underlying devices are by
1389 * obtaining the device_info bits for the 1st device
1390 */
1391 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1392 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1393 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1394 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1395 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1396 le16_to_cpu(pd_pg0.DevHandle)))) {
1397 raid_device->device_info =
1398 le32_to_cpu(sas_device_pg0.DeviceInfo);
1399 }
1400 }
1401
1402 kfree(vol_pg0);
1403}
1404
1405/**
1406 * scsih_slave_configure - device configure routine.
1407 * @sdev: scsi device struct
1408 *
1409 * Returns 0 if ok. Any other return is assumed to be an error and
1410 * the device is ignored.
1411 */
1412static int
1413scsih_slave_configure(struct scsi_device *sdev)
1414{
1415 struct Scsi_Host *shost = sdev->host;
1416 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1417 struct MPT2SAS_DEVICE *sas_device_priv_data;
1418 struct MPT2SAS_TARGET *sas_target_priv_data;
1419 struct _sas_device *sas_device;
1420 struct _raid_device *raid_device;
1421 unsigned long flags;
1422 int qdepth;
1423 u8 ssp_target = 0;
1424 char *ds = "";
1425 char *r_level = "";
1426
1427 qdepth = 1;
1428 sas_device_priv_data = sdev->hostdata;
1429 sas_device_priv_data->configured_lun = 1;
1430 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1431 sas_target_priv_data = sas_device_priv_data->sas_target;
1432
1433 /* raid volume handling */
1434 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1435
1436 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1437 raid_device = _scsih_raid_device_find_by_handle(ioc,
1438 sas_target_priv_data->handle);
1439 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1440 if (!raid_device) {
1441 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1442 ioc->name, __FILE__, __LINE__, __func__);
1443 return 0;
1444 }
1445
1446 _scsih_get_volume_capabilities(ioc, raid_device);
1447
1448 /* RAID Queue Depth Support
1449 * IS volume = underlying qdepth of drive type, either
1450 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1451 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1452 */
1453 if (raid_device->device_info &
1454 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1455 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1456 ds = "SSP";
1457 } else {
1458 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1459 if (raid_device->device_info &
1460 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1461 ds = "SATA";
1462 else
1463 ds = "STP";
1464 }
1465
1466 switch (raid_device->volume_type) {
1467 case MPI2_RAID_VOL_TYPE_RAID0:
1468 r_level = "RAID0";
1469 break;
1470 case MPI2_RAID_VOL_TYPE_RAID1E:
1471 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1472 r_level = "RAID1E";
1473 break;
1474 case MPI2_RAID_VOL_TYPE_RAID1:
1475 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1476 r_level = "RAID1";
1477 break;
1478 case MPI2_RAID_VOL_TYPE_RAID10:
1479 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1480 r_level = "RAID10";
1481 break;
1482 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1483 default:
1484 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1485 r_level = "RAIDX";
1486 break;
1487 }
1488
1489 sdev_printk(KERN_INFO, sdev, "%s: "
1490 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1491 r_level, raid_device->handle,
1492 (unsigned long long)raid_device->wwid,
1493 raid_device->num_pds, ds);
1494 scsih_change_queue_depth(sdev, qdepth);
1495 return 0;
1496 }
1497
1498 /* non-raid handling */
1499 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1500 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1501 sas_device_priv_data->sas_target->sas_address);
1502 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1503 if (sas_device) {
1504 if (sas_target_priv_data->flags &
1505 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1506 mpt2sas_config_get_volume_handle(ioc,
1507 sas_device->handle, &sas_device->volume_handle);
1508 mpt2sas_config_get_volume_wwid(ioc,
1509 sas_device->volume_handle,
1510 &sas_device->volume_wwid);
1511 }
1512 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1513 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1514 ssp_target = 1;
1515 ds = "SSP";
1516 } else {
1517 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1518 if (sas_device->device_info &
1519 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1520 ds = "STP";
1521 else if (sas_device->device_info &
1522 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1523 ds = "SATA";
1524 }
1525
1526 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
1527 "sas_addr(0x%016llx), device_name(0x%016llx)\n",
1528 ds, sas_device->handle,
1529 (unsigned long long)sas_device->sas_address,
1530 (unsigned long long)sas_device->device_name);
1531 sdev_printk(KERN_INFO, sdev, "%s: "
1532 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1533 (unsigned long long) sas_device->enclosure_logical_id,
1534 sas_device->slot);
1535
1536 if (!ssp_target)
1537 scsih_display_sata_capabilities(ioc, sas_device, sdev);
1538 }
1539
1540 scsih_change_queue_depth(sdev, qdepth);
1541
1542 if (ssp_target)
1543 sas_read_port_mode_page(sdev);
1544 return 0;
1545}
1546
1547/**
1548 * scsih_bios_param - fetch head, sector, cylinder info for a disk
1549 * @sdev: scsi device struct
1550 * @bdev: pointer to block device context
1551 * @capacity: device size (in 512 byte sectors)
1552 * @params: three element array to place output:
1553 * params[0] number of heads (max 255)
1554 * params[1] number of sectors (max 63)
1555 * params[2] number of cylinders
1556 *
1557 * Return nothing.
1558 */
1559static int
1560scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
1561 sector_t capacity, int params[])
1562{
1563 int heads;
1564 int sectors;
1565 sector_t cylinders;
1566 ulong dummy;
1567
1568 heads = 64;
1569 sectors = 32;
1570
1571 dummy = heads * sectors;
1572 cylinders = capacity;
1573 sector_div(cylinders, dummy);
1574
1575 /*
1576 * Handle extended translation size for logical drives
1577 * > 1Gb
1578 */
1579 if ((ulong)capacity >= 0x200000) {
1580 heads = 255;
1581 sectors = 63;
1582 dummy = heads * sectors;
1583 cylinders = capacity;
1584 sector_div(cylinders, dummy);
1585 }
1586
1587 /* return result */
1588 params[0] = heads;
1589 params[1] = sectors;
1590 params[2] = cylinders;
1591
1592 return 0;
1593}
1594
1595/**
1596 * _scsih_response_code - translation of device response code
1597 * @ioc: per adapter object
1598 * @response_code: response code returned by the device
1599 *
1600 * Return nothing.
1601 */
1602static void
1603_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1604{
1605 char *desc;
1606
1607 switch (response_code) {
1608 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1609 desc = "task management request completed";
1610 break;
1611 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1612 desc = "invalid frame";
1613 break;
1614 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1615 desc = "task management request not supported";
1616 break;
1617 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1618 desc = "task management request failed";
1619 break;
1620 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1621 desc = "task management request succeeded";
1622 break;
1623 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1624 desc = "invalid lun";
1625 break;
1626 case 0xA:
1627 desc = "overlapped tag attempted";
1628 break;
1629 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1630 desc = "task queued, however not sent to target";
1631 break;
1632 default:
1633 desc = "unknown";
1634 break;
1635 }
1636 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1637 ioc->name, response_code, desc);
1638}
1639
1640/**
1641 * scsih_tm_done - tm completion routine
1642 * @ioc: per adapter object
1643 * @smid: system request message index
1644 * @VF_ID: virtual function id
1645 * @reply: reply message frame(lower 32bit addr)
1646 * Context: none.
1647 *
1648 * The callback handler when using scsih_issue_tm.
1649 *
1650 * Return nothing.
1651 */
1652static void
1653scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
1654{
1655 MPI2DefaultReply_t *mpi_reply;
1656
1657 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
1658 return;
1659 if (ioc->tm_cmds.smid != smid)
1660 return;
1661 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1662 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1663 if (mpi_reply) {
1664 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1665 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1666 }
1667 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1668 complete(&ioc->tm_cmds.done);
1669}
1670
1671/**
1672 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1673 * @ioc: per adapter object
1674 * @handle: device handle
1675 *
1676 * During taskmangement request, we need to freeze the device queue.
1677 */
1678void
1679mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1680{
1681 struct MPT2SAS_DEVICE *sas_device_priv_data;
1682 struct scsi_device *sdev;
1683 u8 skip = 0;
1684
1685 shost_for_each_device(sdev, ioc->shost) {
1686 if (skip)
1687 continue;
1688 sas_device_priv_data = sdev->hostdata;
1689 if (!sas_device_priv_data)
1690 continue;
1691 if (sas_device_priv_data->sas_target->handle == handle) {
1692 sas_device_priv_data->sas_target->tm_busy = 1;
1693 skip = 1;
1694 ioc->ignore_loginfos = 1;
1695 }
1696 }
1697}
1698
1699/**
1700 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1701 * @ioc: per adapter object
1702 * @handle: device handle
1703 *
1704 * During taskmangement request, we need to freeze the device queue.
1705 */
1706void
1707mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1708{
1709 struct MPT2SAS_DEVICE *sas_device_priv_data;
1710 struct scsi_device *sdev;
1711 u8 skip = 0;
1712
1713 shost_for_each_device(sdev, ioc->shost) {
1714 if (skip)
1715 continue;
1716 sas_device_priv_data = sdev->hostdata;
1717 if (!sas_device_priv_data)
1718 continue;
1719 if (sas_device_priv_data->sas_target->handle == handle) {
1720 sas_device_priv_data->sas_target->tm_busy = 0;
1721 skip = 1;
1722 ioc->ignore_loginfos = 0;
1723 }
1724 }
1725}
1726
1727/**
1728 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1729 * @ioc: per adapter struct
1730 * @device_handle: device handle
1731 * @lun: lun number
1732 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1733 * @smid_task: smid assigned to the task
1734 * @timeout: timeout in seconds
1735 * Context: The calling function needs to acquire the tm_cmds.mutex
1736 *
1737 * A generic API for sending task management requests to firmware.
1738 *
1739 * The ioc->tm_cmds.status flag should be MPT2_CMD_NOT_USED before calling
1740 * this API.
1741 *
1742 * The callback index is set inside `ioc->tm_cb_idx`.
1743 *
1744 * Return nothing.
1745 */
1746void
1747mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
1748 u8 type, u16 smid_task, ulong timeout)
1749{
1750 Mpi2SCSITaskManagementRequest_t *mpi_request;
1751 Mpi2SCSITaskManagementReply_t *mpi_reply;
1752 u16 smid = 0;
1753 u32 ioc_state;
1754 unsigned long timeleft;
1755 u8 VF_ID = 0;
1756 unsigned long flags;
1757
1758 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
1759 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED ||
1760 ioc->shost_recovery) {
1761 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1762 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
1763 __func__, ioc->name);
1764 return;
1765 }
1766 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
1767
1768 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
1769 if (ioc_state & MPI2_DOORBELL_USED) {
1770 dhsprintk(ioc, printk(MPT2SAS_DEBUG_FMT "unexpected doorbell "
1771 "active!\n", ioc->name));
1772 goto issue_host_reset;
1773 }
1774
1775 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
1776 mpt2sas_base_fault_info(ioc, ioc_state &
1777 MPI2_DOORBELL_DATA_MASK);
1778 goto issue_host_reset;
1779 }
1780
1781 smid = mpt2sas_base_get_smid(ioc, ioc->tm_cb_idx);
1782 if (!smid) {
1783 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
1784 ioc->name, __func__);
1785 return;
1786 }
1787
1788 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
1789 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type, smid));
1790 ioc->tm_cmds.status = MPT2_CMD_PENDING;
1791 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
1792 ioc->tm_cmds.smid = smid;
1793 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
1794 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
1795 mpi_request->DevHandle = cpu_to_le16(handle);
1796 mpi_request->TaskType = type;
1797 mpi_request->TaskMID = cpu_to_le16(smid_task);
1798 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
1799 mpt2sas_scsih_set_tm_flag(ioc, handle);
1800 mpt2sas_base_put_smid_hi_priority(ioc, smid, VF_ID);
1801 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
1802 mpt2sas_scsih_clear_tm_flag(ioc, handle);
1803 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
1804 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
1805 ioc->name, __func__);
1806 _debug_dump_mf(mpi_request,
1807 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
1808 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET))
1809 goto issue_host_reset;
1810 }
1811
1812 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
1813 mpi_reply = ioc->tm_cmds.reply;
1814 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
1815 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
1816 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
1817 le32_to_cpu(mpi_reply->IOCLogInfo),
1818 le32_to_cpu(mpi_reply->TerminationCount)));
1819 if (ioc->logging_level & MPT_DEBUG_TM)
1820 _scsih_response_code(ioc, mpi_reply->ResponseCode);
1821 }
1822 return;
1823 issue_host_reset:
1824 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, FORCE_BIG_HAMMER);
1825}
1826
1827/**
1828 * scsih_abort - eh threads main abort routine
1829 * @sdev: scsi device struct
1830 *
1831 * Returns SUCCESS if command aborted else FAILED
1832 */
1833static int
1834scsih_abort(struct scsi_cmnd *scmd)
1835{
1836 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1837 struct MPT2SAS_DEVICE *sas_device_priv_data;
1838 u16 smid;
1839 u16 handle;
1840 int r;
1841 struct scsi_cmnd *scmd_lookup;
1842
1843 printk(MPT2SAS_INFO_FMT "attempting task abort! scmd(%p)\n",
1844 ioc->name, scmd);
1845 scsi_print_command(scmd);
1846
1847 sas_device_priv_data = scmd->device->hostdata;
1848 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1849 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1850 ioc->name, scmd);
1851 scmd->result = DID_NO_CONNECT << 16;
1852 scmd->scsi_done(scmd);
1853 r = SUCCESS;
1854 goto out;
1855 }
1856
1857 /* search for the command */
1858 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
1859 if (!smid) {
1860 scmd->result = DID_RESET << 16;
1861 r = SUCCESS;
1862 goto out;
1863 }
1864
1865 /* for hidden raid components and volumes this is not supported */
1866 if (sas_device_priv_data->sas_target->flags &
1867 MPT_TARGET_FLAGS_RAID_COMPONENT ||
1868 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
1869 scmd->result = DID_RESET << 16;
1870 r = FAILED;
1871 goto out;
1872 }
1873
1874 mutex_lock(&ioc->tm_cmds.mutex);
1875 handle = sas_device_priv_data->sas_target->handle;
1876 mpt2sas_scsih_issue_tm(ioc, handle, sas_device_priv_data->lun,
1877 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
1878
1879 /* sanity check - see whether command actually completed */
1880 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid);
1881 if (scmd_lookup && (scmd_lookup->serial_number == scmd->serial_number))
1882 r = FAILED;
1883 else
1884 r = SUCCESS;
1885 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1886 mutex_unlock(&ioc->tm_cmds.mutex);
1887
1888 out:
1889 printk(MPT2SAS_INFO_FMT "task abort: %s scmd(%p)\n",
1890 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1891 return r;
1892}
1893
1894
1895/**
1896 * scsih_dev_reset - eh threads main device reset routine
1897 * @sdev: scsi device struct
1898 *
1899 * Returns SUCCESS if command aborted else FAILED
1900 */
1901static int
1902scsih_dev_reset(struct scsi_cmnd *scmd)
1903{
1904 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1905 struct MPT2SAS_DEVICE *sas_device_priv_data;
1906 struct _sas_device *sas_device;
1907 unsigned long flags;
1908 u16 handle;
1909 int r;
1910
1911 printk(MPT2SAS_INFO_FMT "attempting target reset! scmd(%p)\n",
1912 ioc->name, scmd);
1913 scsi_print_command(scmd);
1914
1915 sas_device_priv_data = scmd->device->hostdata;
1916 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
1917 printk(MPT2SAS_INFO_FMT "device been deleted! scmd(%p)\n",
1918 ioc->name, scmd);
1919 scmd->result = DID_NO_CONNECT << 16;
1920 scmd->scsi_done(scmd);
1921 r = SUCCESS;
1922 goto out;
1923 }
1924
1925 /* for hidden raid components obtain the volume_handle */
1926 handle = 0;
1927 if (sas_device_priv_data->sas_target->flags &
1928 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1929 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1930 sas_device = _scsih_sas_device_find_by_handle(ioc,
1931 sas_device_priv_data->sas_target->handle);
1932 if (sas_device)
1933 handle = sas_device->volume_handle;
1934 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1935 } else
1936 handle = sas_device_priv_data->sas_target->handle;
1937
1938 if (!handle) {
1939 scmd->result = DID_RESET << 16;
1940 r = FAILED;
1941 goto out;
1942 }
1943
1944 mutex_lock(&ioc->tm_cmds.mutex);
1945 mpt2sas_scsih_issue_tm(ioc, handle, 0,
1946 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
1947
1948 /*
1949 * sanity check see whether all commands to this target been
1950 * completed
1951 */
1952 if (_scsih_scsi_lookup_find_by_target(ioc, scmd->device->id,
1953 scmd->device->channel))
1954 r = FAILED;
1955 else
1956 r = SUCCESS;
1957 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
1958 mutex_unlock(&ioc->tm_cmds.mutex);
1959
1960 out:
1961 printk(MPT2SAS_INFO_FMT "target reset: %s scmd(%p)\n",
1962 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1963 return r;
1964}
1965
1966/**
1967 * scsih_abort - eh threads main host reset routine
1968 * @sdev: scsi device struct
1969 *
1970 * Returns SUCCESS if command aborted else FAILED
1971 */
1972static int
1973scsih_host_reset(struct scsi_cmnd *scmd)
1974{
1975 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
1976 int r, retval;
1977
1978 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
1979 ioc->name, scmd);
1980 scsi_print_command(scmd);
1981
1982 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
1983 FORCE_BIG_HAMMER);
1984 r = (retval < 0) ? FAILED : SUCCESS;
1985 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
1986 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
1987
1988 return r;
1989}
1990
1991/**
1992 * _scsih_fw_event_add - insert and queue up fw_event
1993 * @ioc: per adapter object
1994 * @fw_event: object describing the event
1995 * Context: This function will acquire ioc->fw_event_lock.
1996 *
1997 * This adds the firmware event object into link list, then queues it up to
1998 * be processed from user context.
1999 *
2000 * Return nothing.
2001 */
2002static void
2003_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2004{
2005 unsigned long flags;
2006
2007 if (ioc->firmware_event_thread == NULL)
2008 return;
2009
2010 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2011 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2012 INIT_DELAYED_WORK(&fw_event->work, _firmware_event_work);
2013 queue_delayed_work(ioc->firmware_event_thread, &fw_event->work, 1);
2014 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2015}
2016
2017/**
2018 * _scsih_fw_event_free - delete fw_event
2019 * @ioc: per adapter object
2020 * @fw_event: object describing the event
2021 * Context: This function will acquire ioc->fw_event_lock.
2022 *
2023 * This removes firmware event object from link list, frees associated memory.
2024 *
2025 * Return nothing.
2026 */
2027static void
2028_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2029 *fw_event)
2030{
2031 unsigned long flags;
2032
2033 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2034 list_del(&fw_event->list);
2035 kfree(fw_event->event_data);
2036 kfree(fw_event);
2037 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2038}
2039
2040/**
2041 * _scsih_fw_event_add - requeue an event
2042 * @ioc: per adapter object
2043 * @fw_event: object describing the event
2044 * Context: This function will acquire ioc->fw_event_lock.
2045 *
2046 * Return nothing.
2047 */
2048static void
2049_scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2050 *fw_event, unsigned long delay)
2051{
2052 unsigned long flags;
2053 if (ioc->firmware_event_thread == NULL)
2054 return;
2055
2056 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2057 queue_delayed_work(ioc->firmware_event_thread, &fw_event->work, delay);
2058 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2059}
2060
2061/**
2062 * _scsih_fw_event_off - turn flag off preventing event handling
2063 * @ioc: per adapter object
2064 *
2065 * Used to prevent handling of firmware events during adapter reset
2066 * driver unload.
2067 *
2068 * Return nothing.
2069 */
2070static void
2071_scsih_fw_event_off(struct MPT2SAS_ADAPTER *ioc)
2072{
2073 unsigned long flags;
2074
2075 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2076 ioc->fw_events_off = 1;
2077 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2078
2079}
2080
2081/**
2082 * _scsih_fw_event_on - turn flag on allowing firmware event handling
2083 * @ioc: per adapter object
2084 *
2085 * Returns nothing.
2086 */
2087static void
2088_scsih_fw_event_on(struct MPT2SAS_ADAPTER *ioc)
2089{
2090 unsigned long flags;
2091
2092 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2093 ioc->fw_events_off = 0;
2094 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2095}
2096
2097/**
2098 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2099 * @ioc: per adapter object
2100 * @handle: device handle
2101 *
2102 * During device pull we need to appropiately set the sdev state.
2103 */
2104static void
2105_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2106{
2107 struct MPT2SAS_DEVICE *sas_device_priv_data;
2108 struct scsi_device *sdev;
2109
2110 shost_for_each_device(sdev, ioc->shost) {
2111 sas_device_priv_data = sdev->hostdata;
2112 if (!sas_device_priv_data)
2113 continue;
2114 if (!sas_device_priv_data->block)
2115 continue;
2116 if (sas_device_priv_data->sas_target->handle == handle) {
2117 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2118 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2119 "handle(0x%04x)\n", ioc->name, handle));
2120 sas_device_priv_data->block = 0;
2121 scsi_device_set_state(sdev, SDEV_RUNNING);
2122 }
2123 }
2124}
2125
2126/**
2127 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2128 * @ioc: per adapter object
2129 * @handle: device handle
2130 *
2131 * During device pull we need to appropiately set the sdev state.
2132 */
2133static void
2134_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2135{
2136 struct MPT2SAS_DEVICE *sas_device_priv_data;
2137 struct scsi_device *sdev;
2138
2139 shost_for_each_device(sdev, ioc->shost) {
2140 sas_device_priv_data = sdev->hostdata;
2141 if (!sas_device_priv_data)
2142 continue;
2143 if (sas_device_priv_data->block)
2144 continue;
2145 if (sas_device_priv_data->sas_target->handle == handle) {
2146 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2147 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2148 "handle(0x%04x)\n", ioc->name, handle));
2149 sas_device_priv_data->block = 1;
2150 scsi_device_set_state(sdev, SDEV_BLOCK);
2151 }
2152 }
2153}
2154
2155/**
2156 * _scsih_block_io_to_children_attached_to_ex
2157 * @ioc: per adapter object
2158 * @sas_expander: the sas_device object
2159 *
2160 * This routine set sdev state to SDEV_BLOCK for all devices
2161 * attached to this expander. This function called when expander is
2162 * pulled.
2163 */
2164static void
2165_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2166 struct _sas_node *sas_expander)
2167{
2168 struct _sas_port *mpt2sas_port;
2169 struct _sas_device *sas_device;
2170 struct _sas_node *expander_sibling;
2171 unsigned long flags;
2172
2173 if (!sas_expander)
2174 return;
2175
2176 list_for_each_entry(mpt2sas_port,
2177 &sas_expander->sas_port_list, port_list) {
2178 if (mpt2sas_port->remote_identify.device_type ==
2179 SAS_END_DEVICE) {
2180 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2181 sas_device =
2182 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2183 mpt2sas_port->remote_identify.sas_address);
2184 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2185 if (!sas_device)
2186 continue;
2187 _scsih_block_io_device(ioc, sas_device->handle);
2188 }
2189 }
2190
2191 list_for_each_entry(mpt2sas_port,
2192 &sas_expander->sas_port_list, port_list) {
2193
2194 if (mpt2sas_port->remote_identify.device_type ==
2195 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
2196 mpt2sas_port->remote_identify.device_type ==
2197 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
2198
2199 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2200 expander_sibling =
2201 mpt2sas_scsih_expander_find_by_sas_address(
2202 ioc, mpt2sas_port->remote_identify.sas_address);
2203 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2204 _scsih_block_io_to_children_attached_to_ex(ioc,
2205 expander_sibling);
2206 }
2207 }
2208}
2209
2210/**
2211 * _scsih_block_io_to_children_attached_directly
2212 * @ioc: per adapter object
2213 * @event_data: topology change event data
2214 *
2215 * This routine set sdev state to SDEV_BLOCK for all devices
2216 * direct attached during device pull.
2217 */
2218static void
2219_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2220 Mpi2EventDataSasTopologyChangeList_t *event_data)
2221{
2222 int i;
2223 u16 handle;
2224 u16 reason_code;
2225 u8 phy_number;
2226
2227 for (i = 0; i < event_data->NumEntries; i++) {
2228 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2229 if (!handle)
2230 continue;
2231 phy_number = event_data->StartPhyNum + i;
2232 reason_code = event_data->PHY[i].PhyStatus &
2233 MPI2_EVENT_SAS_TOPO_RC_MASK;
2234 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2235 _scsih_block_io_device(ioc, handle);
2236 }
2237}
2238
2239/**
2240 * _scsih_check_topo_delete_events - sanity check on topo events
2241 * @ioc: per adapter object
2242 * @event_data: the event data payload
2243 *
2244 * This routine added to better handle cable breaker.
2245 *
2246 * This handles the case where driver recieves multiple expander
2247 * add and delete events in a single shot. When there is a delete event
2248 * the routine will void any pending add events waiting in the event queue.
2249 *
2250 * Return nothing.
2251 */
2252static void
2253_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2254 Mpi2EventDataSasTopologyChangeList_t *event_data)
2255{
2256 struct fw_event_work *fw_event;
2257 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2258 u16 expander_handle;
2259 struct _sas_node *sas_expander;
2260 unsigned long flags;
2261
2262 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2263 if (expander_handle < ioc->sas_hba.num_phys) {
2264 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2265 return;
2266 }
2267
2268 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2269 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2270 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2271 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2272 expander_handle);
2273 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2274 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2275 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2276 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2277
2278 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2279 return;
2280
2281 /* mark ignore flag for pending events */
2282 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2283 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
2284 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
2285 fw_event->ignore)
2286 continue;
2287 local_event_data = fw_event->event_data;
2288 if (local_event_data->ExpStatus ==
2289 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
2290 local_event_data->ExpStatus ==
2291 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
2292 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
2293 expander_handle) {
2294 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT
2295 "setting ignoring flag\n", ioc->name));
2296 fw_event->ignore = 1;
2297 }
2298 }
2299 }
2300 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2301}
2302
2303/**
2304 * _scsih_queue_rescan - queue a topology rescan from user context
2305 * @ioc: per adapter object
2306 *
2307 * Return nothing.
2308 */
2309static void
2310_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
2311{
2312 struct fw_event_work *fw_event;
2313
2314 if (ioc->wait_for_port_enable_to_complete)
2315 return;
2316 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2317 if (!fw_event)
2318 return;
2319 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2320 fw_event->ioc = ioc;
2321 _scsih_fw_event_add(ioc, fw_event);
2322}
2323
2324/**
2325 * _scsih_flush_running_cmds - completing outstanding commands.
2326 * @ioc: per adapter object
2327 *
2328 * The flushing out of all pending scmd commands following host reset,
2329 * where all IO is dropped to the floor.
2330 *
2331 * Return nothing.
2332 */
2333static void
2334_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
2335{
2336 struct scsi_cmnd *scmd;
2337 u16 smid;
2338 u16 count = 0;
2339
2340 for (smid = 1; smid <= ioc->request_depth; smid++) {
2341 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
2342 if (!scmd)
2343 continue;
2344 count++;
2345 mpt2sas_base_free_smid(ioc, smid);
2346 scsi_dma_unmap(scmd);
2347 scmd->result = DID_RESET << 16;
2348 scmd->scsi_done(scmd);
2349 }
2350 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
2351 ioc->name, count));
2352}
2353
2354/**
2355 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
2356 * @ioc: per adapter object
2357 * @reset_phase: phase
2358 *
2359 * The handler for doing any required cleanup or initialization.
2360 *
2361 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
2362 * MPT2_IOC_DONE_RESET
2363 *
2364 * Return nothing.
2365 */
2366void
2367mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
2368{
2369 switch (reset_phase) {
2370 case MPT2_IOC_PRE_RESET:
2371 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2372 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
2373 _scsih_fw_event_off(ioc);
2374 break;
2375 case MPT2_IOC_AFTER_RESET:
2376 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2377 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
2378 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
2379 ioc->tm_cmds.status |= MPT2_CMD_RESET;
2380 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
2381 complete(&ioc->tm_cmds.done);
2382 }
2383 _scsih_fw_event_on(ioc);
2384 _scsih_flush_running_cmds(ioc);
2385 break;
2386 case MPT2_IOC_DONE_RESET:
2387 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
2388 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
2389 _scsih_queue_rescan(ioc);
2390 break;
2391 }
2392}
2393
2394/**
2395 * scsih_qcmd - main scsi request entry point
2396 * @scmd: pointer to scsi command object
2397 * @done: function pointer to be invoked on completion
2398 *
2399 * The callback index is set inside `ioc->scsi_io_cb_idx`.
2400 *
2401 * Returns 0 on success. If there's a failure, return either:
2402 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
2403 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
2404 */
2405static int
2406scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
2407{
2408 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2409 struct MPT2SAS_DEVICE *sas_device_priv_data;
2410 struct MPT2SAS_TARGET *sas_target_priv_data;
2411 Mpi2SCSIIORequest_t *mpi_request;
2412 u32 mpi_control;
2413 u16 smid;
2414 unsigned long flags;
2415
2416 scmd->scsi_done = done;
2417 sas_device_priv_data = scmd->device->hostdata;
2418 if (!sas_device_priv_data) {
2419 scmd->result = DID_NO_CONNECT << 16;
2420 scmd->scsi_done(scmd);
2421 return 0;
2422 }
2423
2424 sas_target_priv_data = sas_device_priv_data->sas_target;
2425 if (!sas_target_priv_data || sas_target_priv_data->handle ==
2426 MPT2SAS_INVALID_DEVICE_HANDLE || sas_target_priv_data->deleted) {
2427 scmd->result = DID_NO_CONNECT << 16;
2428 scmd->scsi_done(scmd);
2429 return 0;
2430 }
2431
2432 /* see if we are busy with task managment stuff */
2433 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
2434 if (sas_target_priv_data->tm_busy ||
2435 ioc->shost_recovery || ioc->ioc_link_reset_in_progress) {
2436 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2437 return SCSI_MLQUEUE_HOST_BUSY;
2438 }
2439 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
2440
2441 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
2442 mpi_control = MPI2_SCSIIO_CONTROL_READ;
2443 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
2444 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
2445 else
2446 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
2447
2448 /* set tags */
2449 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
2450 if (scmd->device->tagged_supported) {
2451 if (scmd->device->ordered_tags)
2452 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
2453 else
2454 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2455 } else
2456/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
2457/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
2458 */
2459 mpi_control |= (0x500);
2460
2461 } else
2462 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
2463
2464 if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON))
2465 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
2466
2467 smid = mpt2sas_base_get_smid(ioc, ioc->scsi_io_cb_idx);
2468 if (!smid) {
2469 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2470 ioc->name, __func__);
2471 goto out;
2472 }
2473 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2474 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
2475 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2476 if (sas_device_priv_data->sas_target->flags &
2477 MPT_TARGET_FLAGS_RAID_COMPONENT)
2478 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
2479 else
2480 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
2481 mpi_request->DevHandle =
2482 cpu_to_le16(sas_device_priv_data->sas_target->handle);
2483 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
2484 mpi_request->Control = cpu_to_le32(mpi_control);
2485 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
2486 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
2487 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
2488 mpi_request->SenseBufferLowAddress =
2489 (u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
2490 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
2491 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
2492 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
2493
2494 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
2495 mpi_request->LUN);
2496 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
2497
2498 if (!mpi_request->DataLength) {
2499 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
2500 } else {
2501 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
2502 mpt2sas_base_free_smid(ioc, smid);
2503 goto out;
2504 }
2505 }
2506
2507 _scsih_scsi_lookup_set(ioc, smid, scmd);
2508 mpt2sas_base_put_smid_scsi_io(ioc, smid, 0,
2509 sas_device_priv_data->sas_target->handle);
2510 return 0;
2511
2512 out:
2513 return SCSI_MLQUEUE_HOST_BUSY;
2514}
2515
2516/**
2517 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
2518 * @sense_buffer: sense data returned by target
2519 * @data: normalized skey/asc/ascq
2520 *
2521 * Return nothing.
2522 */
2523static void
2524_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
2525{
2526 if ((sense_buffer[0] & 0x7F) >= 0x72) {
2527 /* descriptor format */
2528 data->skey = sense_buffer[1] & 0x0F;
2529 data->asc = sense_buffer[2];
2530 data->ascq = sense_buffer[3];
2531 } else {
2532 /* fixed format */
2533 data->skey = sense_buffer[2] & 0x0F;
2534 data->asc = sense_buffer[12];
2535 data->ascq = sense_buffer[13];
2536 }
2537}
2538
2539#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2540/**
2541 * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
2542 * @ioc: per adapter object
2543 * @scmd: pointer to scsi command object
2544 * @mpi_reply: reply mf payload returned from firmware
2545 *
2546 * scsi_status - SCSI Status code returned from target device
2547 * scsi_state - state info associated with SCSI_IO determined by ioc
2548 * ioc_status - ioc supplied status info
2549 *
2550 * Return nothing.
2551 */
2552static void
2553_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
2554 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
2555{
2556 u32 response_info;
2557 u8 *response_bytes;
2558 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
2559 MPI2_IOCSTATUS_MASK;
2560 u8 scsi_state = mpi_reply->SCSIState;
2561 u8 scsi_status = mpi_reply->SCSIStatus;
2562 char *desc_ioc_state = NULL;
2563 char *desc_scsi_status = NULL;
2564 char *desc_scsi_state = ioc->tmp_string;
2565
2566 switch (ioc_status) {
2567 case MPI2_IOCSTATUS_SUCCESS:
2568 desc_ioc_state = "success";
2569 break;
2570 case MPI2_IOCSTATUS_INVALID_FUNCTION:
2571 desc_ioc_state = "invalid function";
2572 break;
2573 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
2574 desc_ioc_state = "scsi recovered error";
2575 break;
2576 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
2577 desc_ioc_state = "scsi invalid dev handle";
2578 break;
2579 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2580 desc_ioc_state = "scsi device not there";
2581 break;
2582 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
2583 desc_ioc_state = "scsi data overrun";
2584 break;
2585 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
2586 desc_ioc_state = "scsi data underrun";
2587 break;
2588 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
2589 desc_ioc_state = "scsi io data error";
2590 break;
2591 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2592 desc_ioc_state = "scsi protocol error";
2593 break;
2594 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
2595 desc_ioc_state = "scsi task terminated";
2596 break;
2597 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2598 desc_ioc_state = "scsi residual mismatch";
2599 break;
2600 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2601 desc_ioc_state = "scsi task mgmt failed";
2602 break;
2603 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
2604 desc_ioc_state = "scsi ioc terminated";
2605 break;
2606 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
2607 desc_ioc_state = "scsi ext terminated";
2608 break;
2609 default:
2610 desc_ioc_state = "unknown";
2611 break;
2612 }
2613
2614 switch (scsi_status) {
2615 case MPI2_SCSI_STATUS_GOOD:
2616 desc_scsi_status = "good";
2617 break;
2618 case MPI2_SCSI_STATUS_CHECK_CONDITION:
2619 desc_scsi_status = "check condition";
2620 break;
2621 case MPI2_SCSI_STATUS_CONDITION_MET:
2622 desc_scsi_status = "condition met";
2623 break;
2624 case MPI2_SCSI_STATUS_BUSY:
2625 desc_scsi_status = "busy";
2626 break;
2627 case MPI2_SCSI_STATUS_INTERMEDIATE:
2628 desc_scsi_status = "intermediate";
2629 break;
2630 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
2631 desc_scsi_status = "intermediate condmet";
2632 break;
2633 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
2634 desc_scsi_status = "reservation conflict";
2635 break;
2636 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
2637 desc_scsi_status = "command terminated";
2638 break;
2639 case MPI2_SCSI_STATUS_TASK_SET_FULL:
2640 desc_scsi_status = "task set full";
2641 break;
2642 case MPI2_SCSI_STATUS_ACA_ACTIVE:
2643 desc_scsi_status = "aca active";
2644 break;
2645 case MPI2_SCSI_STATUS_TASK_ABORTED:
2646 desc_scsi_status = "task aborted";
2647 break;
2648 default:
2649 desc_scsi_status = "unknown";
2650 break;
2651 }
2652
2653 desc_scsi_state[0] = '\0';
2654 if (!scsi_state)
2655 desc_scsi_state = " ";
2656 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
2657 strcat(desc_scsi_state, "response info ");
2658 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
2659 strcat(desc_scsi_state, "state terminated ");
2660 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
2661 strcat(desc_scsi_state, "no status ");
2662 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
2663 strcat(desc_scsi_state, "autosense failed ");
2664 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
2665 strcat(desc_scsi_state, "autosense valid ");
2666
2667 scsi_print_command(scmd);
2668 printk(MPT2SAS_WARN_FMT "\tdev handle(0x%04x), "
2669 "ioc_status(%s)(0x%04x), smid(%d)\n", ioc->name,
2670 le16_to_cpu(mpi_reply->DevHandle), desc_ioc_state,
2671 ioc_status, smid);
2672 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
2673 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
2674 scsi_get_resid(scmd));
2675 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
2676 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
2677 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
2678 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
2679 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
2680 scsi_status, desc_scsi_state, scsi_state);
2681
2682 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
2683 struct sense_info data;
2684 _scsih_normalize_sense(scmd->sense_buffer, &data);
2685 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
2686 "[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
2687 data.asc, data.ascq);
2688 }
2689
2690 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
2691 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
2692 response_bytes = (u8 *)&response_info;
2693 _scsih_response_code(ioc, response_bytes[3]);
2694 }
2695}
2696#endif
2697
2698/**
2699 * _scsih_smart_predicted_fault - illuminate Fault LED
2700 * @ioc: per adapter object
2701 * @handle: device handle
2702 *
2703 * Return nothing.
2704 */
2705static void
2706_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2707{
2708 Mpi2SepReply_t mpi_reply;
2709 Mpi2SepRequest_t mpi_request;
2710 struct scsi_target *starget;
2711 struct MPT2SAS_TARGET *sas_target_priv_data;
2712 Mpi2EventNotificationReply_t *event_reply;
2713 Mpi2EventDataSasDeviceStatusChange_t *event_data;
2714 struct _sas_device *sas_device;
2715 ssize_t sz;
2716 unsigned long flags;
2717
2718 /* only handle non-raid devices */
2719 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2720 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2721 if (!sas_device) {
2722 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2723 return;
2724 }
2725 starget = sas_device->starget;
2726 sas_target_priv_data = starget->hostdata;
2727
2728 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
2729 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
2730 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2731 return;
2732 }
2733 starget_printk(KERN_WARNING, starget, "predicted fault\n");
2734 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2735
2736 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
2737 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
2738 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
2739 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
2740 mpi_request.SlotStatus =
2741 MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
2742 mpi_request.DevHandle = cpu_to_le16(handle);
2743 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
2744 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
2745 &mpi_request)) != 0) {
2746 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2747 ioc->name, __FILE__, __LINE__, __func__);
2748 return;
2749 }
2750
2751 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
2752 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2753 "enclosure_processor: ioc_status (0x%04x), "
2754 "loginfo(0x%08x)\n", ioc->name,
2755 le16_to_cpu(mpi_reply.IOCStatus),
2756 le32_to_cpu(mpi_reply.IOCLogInfo)));
2757 return;
2758 }
2759 }
2760
2761 /* insert into event log */
2762 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
2763 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
2764 event_reply = kzalloc(sz, GFP_KERNEL);
2765 if (!event_reply) {
2766 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
2767 ioc->name, __FILE__, __LINE__, __func__);
2768 return;
2769 }
2770
2771 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
2772 event_reply->Event =
2773 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
2774 event_reply->MsgLength = sz/4;
2775 event_reply->EventDataLength =
2776 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
2777 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
2778 event_reply->EventData;
2779 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
2780 event_data->ASC = 0x5D;
2781 event_data->DevHandle = cpu_to_le16(handle);
2782 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
2783 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
2784 kfree(event_reply);
2785}
2786
2787/**
2788 * scsih_io_done - scsi request callback
2789 * @ioc: per adapter object
2790 * @smid: system request message index
2791 * @VF_ID: virtual function id
2792 * @reply: reply message frame(lower 32bit addr)
2793 *
2794 * Callback handler when using scsih_qcmd.
2795 *
2796 * Return nothing.
2797 */
2798static void
2799scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply)
2800{
2801 Mpi2SCSIIORequest_t *mpi_request;
2802 Mpi2SCSIIOReply_t *mpi_reply;
2803 struct scsi_cmnd *scmd;
2804 u16 ioc_status;
2805 u32 xfer_cnt;
2806 u8 scsi_state;
2807 u8 scsi_status;
2808 u32 log_info;
2809 struct MPT2SAS_DEVICE *sas_device_priv_data;
2810 u32 response_code;
2811
2812 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
2813 scmd = _scsih_scsi_lookup_getclear(ioc, smid);
2814 if (scmd == NULL)
2815 return;
2816
2817 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2818
2819 if (mpi_reply == NULL) {
2820 scmd->result = DID_OK << 16;
2821 goto out;
2822 }
2823
2824 sas_device_priv_data = scmd->device->hostdata;
2825 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
2826 sas_device_priv_data->sas_target->deleted) {
2827 scmd->result = DID_NO_CONNECT << 16;
2828 goto out;
2829 }
2830
2831 /* turning off TLR */
2832 if (!sas_device_priv_data->tlr_snoop_check) {
2833 sas_device_priv_data->tlr_snoop_check++;
2834 if (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) {
2835 response_code = (le32_to_cpu(mpi_reply->ResponseInfo)
2836 >> 24);
2837 if (response_code ==
2838 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
2839 sas_device_priv_data->flags &=
2840 ~MPT_DEVICE_TLR_ON;
2841 }
2842 }
2843
2844 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
2845 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
2846 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
2847 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
2848 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
2849 else
2850 log_info = 0;
2851 ioc_status &= MPI2_IOCSTATUS_MASK;
2852 scsi_state = mpi_reply->SCSIState;
2853 scsi_status = mpi_reply->SCSIStatus;
2854
2855 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
2856 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
2857 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
2858 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
2859 ioc_status = MPI2_IOCSTATUS_SUCCESS;
2860 }
2861
2862 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
2863 struct sense_info data;
2864 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
2865 smid);
2866 memcpy(scmd->sense_buffer, sense_data,
2867 le32_to_cpu(mpi_reply->SenseCount));
2868 _scsih_normalize_sense(scmd->sense_buffer, &data);
2869 /* failure prediction threshold exceeded */
2870 if (data.asc == 0x5D)
2871 _scsih_smart_predicted_fault(ioc,
2872 le16_to_cpu(mpi_reply->DevHandle));
2873 }
2874
2875 switch (ioc_status) {
2876 case MPI2_IOCSTATUS_BUSY:
2877 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
2878 scmd->result = SAM_STAT_BUSY;
2879 break;
2880
2881 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
2882 scmd->result = DID_NO_CONNECT << 16;
2883 break;
2884
2885 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
2886 if (sas_device_priv_data->block) {
2887 scmd->result = (DID_BUS_BUSY << 16);
2888 break;
2889 }
2890
2891 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
2892 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
2893 scmd->result = DID_RESET << 16;
2894 break;
2895
2896 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
2897 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
2898 scmd->result = DID_SOFT_ERROR << 16;
2899 else
2900 scmd->result = (DID_OK << 16) | scsi_status;
2901 break;
2902
2903 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
2904 scmd->result = (DID_OK << 16) | scsi_status;
2905
2906 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
2907 break;
2908
2909 if (xfer_cnt < scmd->underflow) {
2910 if (scsi_status == SAM_STAT_BUSY)
2911 scmd->result = SAM_STAT_BUSY;
2912 else
2913 scmd->result = DID_SOFT_ERROR << 16;
2914 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
2915 MPI2_SCSI_STATE_NO_SCSI_STATUS))
2916 scmd->result = DID_SOFT_ERROR << 16;
2917 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
2918 scmd->result = DID_RESET << 16;
2919 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
2920 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
2921 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
2922 scmd->result = (DRIVER_SENSE << 24) |
2923 SAM_STAT_CHECK_CONDITION;
2924 scmd->sense_buffer[0] = 0x70;
2925 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
2926 scmd->sense_buffer[12] = 0x20;
2927 scmd->sense_buffer[13] = 0;
2928 }
2929 break;
2930
2931 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
2932 scsi_set_resid(scmd, 0);
2933 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
2934 case MPI2_IOCSTATUS_SUCCESS:
2935 scmd->result = (DID_OK << 16) | scsi_status;
2936 if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
2937 MPI2_SCSI_STATE_NO_SCSI_STATUS))
2938 scmd->result = DID_SOFT_ERROR << 16;
2939 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
2940 scmd->result = DID_RESET << 16;
2941 break;
2942
2943 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
2944 case MPI2_IOCSTATUS_INVALID_FUNCTION:
2945 case MPI2_IOCSTATUS_INVALID_SGL:
2946 case MPI2_IOCSTATUS_INTERNAL_ERROR:
2947 case MPI2_IOCSTATUS_INVALID_FIELD:
2948 case MPI2_IOCSTATUS_INVALID_STATE:
2949 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
2950 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
2951 default:
2952 scmd->result = DID_SOFT_ERROR << 16;
2953 break;
2954
2955 }
2956
2957#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
2958 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
2959 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
2960#endif
2961
2962 out:
2963 scsi_dma_unmap(scmd);
2964 scmd->scsi_done(scmd);
2965}
2966
2967/**
2968 * _scsih_link_change - process phy link changes
2969 * @ioc: per adapter object
2970 * @handle: phy handle
2971 * @attached_handle: valid for devices attached to link
2972 * @phy_number: phy number
2973 * @link_rate: new link rate
2974 * Context: user.
2975 *
2976 * Return nothing.
2977 */
2978static void
2979_scsih_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle, u16 attached_handle,
2980 u8 phy_number, u8 link_rate)
2981{
2982 mpt2sas_transport_update_phy_link_change(ioc, handle, attached_handle,
2983 phy_number, link_rate);
2984}
2985
2986/**
2987 * _scsih_sas_host_refresh - refreshing sas host object contents
2988 * @ioc: per adapter object
2989 * @update: update link information
2990 * Context: user
2991 *
2992 * During port enable, fw will send topology events for every device. Its
2993 * possible that the handles may change from the previous setting, so this
2994 * code keeping handles updating if changed.
2995 *
2996 * Return nothing.
2997 */
2998static void
2999_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc, u8 update)
3000{
3001 u16 sz;
3002 u16 ioc_status;
3003 int i;
3004 Mpi2ConfigReply_t mpi_reply;
3005 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3006
3007 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3008 "updating handles for sas_host(0x%016llx)\n",
3009 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3010
3011 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3012 * sizeof(Mpi2SasIOUnit0PhyData_t));
3013 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3014 if (!sas_iounit_pg0) {
3015 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3016 ioc->name, __FILE__, __LINE__, __func__);
3017 return;
3018 }
3019 if (!(mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3020 sas_iounit_pg0, sz))) {
3021 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3022 MPI2_IOCSTATUS_MASK;
3023 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3024 goto out;
3025 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3026 ioc->sas_hba.phy[i].handle =
3027 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3028 ControllerDevHandle);
3029 if (update)
3030 _scsih_link_change(ioc,
3031 ioc->sas_hba.phy[i].handle,
3032 le16_to_cpu(sas_iounit_pg0->PhyData[i].
3033 AttachedDevHandle), i,
3034 sas_iounit_pg0->PhyData[i].
3035 NegotiatedLinkRate >> 4);
3036 }
3037 }
3038
3039 out:
3040 kfree(sas_iounit_pg0);
3041}
3042
3043/**
3044 * _scsih_sas_host_add - create sas host object
3045 * @ioc: per adapter object
3046 *
3047 * Creating host side data object, stored in ioc->sas_hba
3048 *
3049 * Return nothing.
3050 */
3051static void
3052_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
3053{
3054 int i;
3055 Mpi2ConfigReply_t mpi_reply;
3056 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
3057 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
3058 Mpi2SasPhyPage0_t phy_pg0;
3059 Mpi2SasDevicePage0_t sas_device_pg0;
3060 Mpi2SasEnclosurePage0_t enclosure_pg0;
3061 u16 ioc_status;
3062 u16 sz;
3063 u16 device_missing_delay;
3064
3065 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
3066 if (!ioc->sas_hba.num_phys) {
3067 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3068 ioc->name, __FILE__, __LINE__, __func__);
3069 return;
3070 }
3071
3072 /* sas_iounit page 0 */
3073 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
3074 sizeof(Mpi2SasIOUnit0PhyData_t));
3075 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3076 if (!sas_iounit_pg0) {
3077 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3078 ioc->name, __FILE__, __LINE__, __func__);
3079 return;
3080 }
3081 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3082 sas_iounit_pg0, sz))) {
3083 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3084 ioc->name, __FILE__, __LINE__, __func__);
3085 goto out;
3086 }
3087 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3088 MPI2_IOCSTATUS_MASK;
3089 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3090 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3091 ioc->name, __FILE__, __LINE__, __func__);
3092 goto out;
3093 }
3094
3095 /* sas_iounit page 1 */
3096 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
3097 sizeof(Mpi2SasIOUnit1PhyData_t));
3098 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
3099 if (!sas_iounit_pg1) {
3100 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3101 ioc->name, __FILE__, __LINE__, __func__);
3102 goto out;
3103 }
3104 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
3105 sas_iounit_pg1, sz))) {
3106 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3107 ioc->name, __FILE__, __LINE__, __func__);
3108 goto out;
3109 }
3110 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3111 MPI2_IOCSTATUS_MASK;
3112 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3113 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3114 ioc->name, __FILE__, __LINE__, __func__);
3115 goto out;
3116 }
3117
3118 ioc->io_missing_delay =
3119 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
3120 device_missing_delay =
3121 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
3122 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
3123 ioc->device_missing_delay = (device_missing_delay &
3124 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
3125 else
3126 ioc->device_missing_delay = device_missing_delay &
3127 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
3128
3129 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
3130 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
3131 sizeof(struct _sas_phy), GFP_KERNEL);
3132 if (!ioc->sas_hba.phy) {
3133 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3134 ioc->name, __FILE__, __LINE__, __func__);
3135 goto out;
3136 }
3137 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3138 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
3139 i))) {
3140 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3141 ioc->name, __FILE__, __LINE__, __func__);
3142 goto out;
3143 }
3144 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3145 MPI2_IOCSTATUS_MASK;
3146 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3147 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3148 ioc->name, __FILE__, __LINE__, __func__);
3149 goto out;
3150 }
3151 ioc->sas_hba.phy[i].handle =
3152 le16_to_cpu(sas_iounit_pg0->PhyData[i].ControllerDevHandle);
3153 ioc->sas_hba.phy[i].phy_id = i;
3154 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
3155 phy_pg0, ioc->sas_hba.parent_dev);
3156 }
3157 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3158 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.phy[0].handle))) {
3159 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3160 ioc->name, __FILE__, __LINE__, __func__);
3161 goto out;
3162 }
3163 ioc->sas_hba.handle = le16_to_cpu(sas_device_pg0.DevHandle);
3164 ioc->sas_hba.enclosure_handle =
3165 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3166 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3167 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
3168 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
3169 (unsigned long long) ioc->sas_hba.sas_address,
3170 ioc->sas_hba.num_phys) ;
3171
3172 if (ioc->sas_hba.enclosure_handle) {
3173 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3174 &enclosure_pg0,
3175 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3176 ioc->sas_hba.enclosure_handle))) {
3177 ioc->sas_hba.enclosure_logical_id =
3178 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3179 }
3180 }
3181
3182 out:
3183 kfree(sas_iounit_pg1);
3184 kfree(sas_iounit_pg0);
3185}
3186
3187/**
3188 * _scsih_expander_add - creating expander object
3189 * @ioc: per adapter object
3190 * @handle: expander handle
3191 *
3192 * Creating expander object, stored in ioc->sas_expander_list.
3193 *
3194 * Return 0 for success, else error.
3195 */
3196static int
3197_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3198{
3199 struct _sas_node *sas_expander;
3200 Mpi2ConfigReply_t mpi_reply;
3201 Mpi2ExpanderPage0_t expander_pg0;
3202 Mpi2ExpanderPage1_t expander_pg1;
3203 Mpi2SasEnclosurePage0_t enclosure_pg0;
3204 u32 ioc_status;
3205 u16 parent_handle;
3206 __le64 sas_address;
3207 int i;
3208 unsigned long flags;
3209 struct _sas_port *mpt2sas_port;
3210 int rc = 0;
3211
3212 if (!handle)
3213 return -1;
3214
3215 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
3216 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
3217 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3218 ioc->name, __FILE__, __LINE__, __func__);
3219 return -1;
3220 }
3221
3222 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3223 MPI2_IOCSTATUS_MASK;
3224 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3225 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3226 ioc->name, __FILE__, __LINE__, __func__);
3227 return -1;
3228 }
3229
3230 /* handle out of order topology events */
3231 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
3232 if (parent_handle >= ioc->sas_hba.num_phys) {
3233 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3234 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
3235 parent_handle);
3236 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3237 if (!sas_expander) {
3238 rc = _scsih_expander_add(ioc, parent_handle);
3239 if (rc != 0)
3240 return rc;
3241 }
3242 }
3243
3244 sas_address = le64_to_cpu(expander_pg0.SASAddress);
3245
3246 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3247 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
3248 sas_address);
3249 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3250
3251 if (sas_expander)
3252 return 0;
3253
3254 sas_expander = kzalloc(sizeof(struct _sas_node),
3255 GFP_KERNEL);
3256 if (!sas_expander) {
3257 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3258 ioc->name, __FILE__, __LINE__, __func__);
3259 return -1;
3260 }
3261
3262 sas_expander->handle = handle;
3263 sas_expander->num_phys = expander_pg0.NumPhys;
3264 sas_expander->parent_handle = parent_handle;
3265 sas_expander->enclosure_handle =
3266 le16_to_cpu(expander_pg0.EnclosureHandle);
3267 sas_expander->sas_address = sas_address;
3268
3269 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
3270 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
3271 handle, sas_expander->parent_handle, (unsigned long long)
3272 sas_expander->sas_address, sas_expander->num_phys);
3273
3274 if (!sas_expander->num_phys)
3275 goto out_fail;
3276 sas_expander->phy = kcalloc(sas_expander->num_phys,
3277 sizeof(struct _sas_phy), GFP_KERNEL);
3278 if (!sas_expander->phy) {
3279 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3280 ioc->name, __FILE__, __LINE__, __func__);
3281 rc = -1;
3282 goto out_fail;
3283 }
3284
3285 INIT_LIST_HEAD(&sas_expander->sas_port_list);
3286 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
3287 sas_expander->parent_handle);
3288 if (!mpt2sas_port) {
3289 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3290 ioc->name, __FILE__, __LINE__, __func__);
3291 rc = -1;
3292 goto out_fail;
3293 }
3294 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
3295
3296 for (i = 0 ; i < sas_expander->num_phys ; i++) {
3297 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
3298 &expander_pg1, i, handle))) {
3299 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3300 ioc->name, __FILE__, __LINE__, __func__);
3301 continue;
3302 }
3303 sas_expander->phy[i].handle = handle;
3304 sas_expander->phy[i].phy_id = i;
3305 mpt2sas_transport_add_expander_phy(ioc, &sas_expander->phy[i],
3306 expander_pg1, sas_expander->parent_dev);
3307 }
3308
3309 if (sas_expander->enclosure_handle) {
3310 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
3311 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3312 sas_expander->enclosure_handle))) {
3313 sas_expander->enclosure_logical_id =
3314 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3315 }
3316 }
3317
3318 _scsih_expander_node_add(ioc, sas_expander);
3319 return 0;
3320
3321 out_fail:
3322
3323 if (sas_expander)
3324 kfree(sas_expander->phy);
3325 kfree(sas_expander);
3326 return rc;
3327}
3328
3329/**
3330 * _scsih_expander_remove - removing expander object
3331 * @ioc: per adapter object
3332 * @handle: expander handle
3333 *
3334 * Return nothing.
3335 */
3336static void
3337_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3338{
3339 struct _sas_node *sas_expander;
3340 unsigned long flags;
3341
3342 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3343 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc, handle);
3344 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
3345 _scsih_expander_node_remove(ioc, sas_expander);
3346}
3347
3348/**
3349 * _scsih_add_device - creating sas device object
3350 * @ioc: per adapter object
3351 * @handle: sas device handle
3352 * @phy_num: phy number end device attached to
3353 * @is_pd: is this hidden raid component
3354 *
3355 * Creating end device object, stored in ioc->sas_device_list.
3356 *
3357 * Returns 0 for success, non-zero for failure.
3358 */
3359static int
3360_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
3361{
3362 Mpi2ConfigReply_t mpi_reply;
3363 Mpi2SasDevicePage0_t sas_device_pg0;
3364 Mpi2SasEnclosurePage0_t enclosure_pg0;
3365 struct _sas_device *sas_device;
3366 u32 ioc_status;
3367 __le64 sas_address;
3368 u32 device_info;
3369 unsigned long flags;
3370
3371 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
3372 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
3373 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3374 ioc->name, __FILE__, __LINE__, __func__);
3375 return -1;
3376 }
3377
3378 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
3379 MPI2_IOCSTATUS_MASK;
3380 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
3381 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3382 ioc->name, __FILE__, __LINE__, __func__);
3383 return -1;
3384 }
3385
3386 /* check if device is present */
3387 if (!(le16_to_cpu(sas_device_pg0.Flags) &
3388 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
3389 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3390 ioc->name, __FILE__, __LINE__, __func__);
3391 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
3392 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
3393 return -1;
3394 }
3395
3396 /* check if there were any issus with discovery */
3397 if (sas_device_pg0.AccessStatus ==
3398 MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED) {
3399 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3400 ioc->name, __FILE__, __LINE__, __func__);
3401 printk(MPT2SAS_ERR_FMT "AccessStatus = 0x%02x\n",
3402 ioc->name, sas_device_pg0.AccessStatus);
3403 return -1;
3404 }
3405
3406 /* check if this is end device */
3407 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
3408 if (!(_scsih_is_end_device(device_info))) {
3409 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3410 ioc->name, __FILE__, __LINE__, __func__);
3411 return -1;
3412 }
3413
3414 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
3415
3416 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3417 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3418 sas_address);
3419 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3420
3421 if (sas_device) {
3422 _scsih_ublock_io_device(ioc, handle);
3423 return 0;
3424 }
3425
3426 sas_device = kzalloc(sizeof(struct _sas_device),
3427 GFP_KERNEL);
3428 if (!sas_device) {
3429 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3430 ioc->name, __FILE__, __LINE__, __func__);
3431 return -1;
3432 }
3433
3434 sas_device->handle = handle;
3435 sas_device->parent_handle =
3436 le16_to_cpu(sas_device_pg0.ParentDevHandle);
3437 sas_device->enclosure_handle =
3438 le16_to_cpu(sas_device_pg0.EnclosureHandle);
3439 sas_device->slot =
3440 le16_to_cpu(sas_device_pg0.Slot);
3441 sas_device->device_info = device_info;
3442 sas_device->sas_address = sas_address;
3443 sas_device->hidden_raid_component = is_pd;
3444
3445 /* get enclosure_logical_id */
3446 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply, &enclosure_pg0,
3447 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
3448 sas_device->enclosure_handle))) {
3449 sas_device->enclosure_logical_id =
3450 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
3451 }
3452
3453 /* get device name */
3454 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
3455
3456 if (ioc->wait_for_port_enable_to_complete)
3457 _scsih_sas_device_init_add(ioc, sas_device);
3458 else
3459 _scsih_sas_device_add(ioc, sas_device);
3460
3461 return 0;
3462}
3463
3464/**
3465 * _scsih_remove_device - removing sas device object
3466 * @ioc: per adapter object
3467 * @handle: sas device handle
3468 *
3469 * Return nothing.
3470 */
3471static void
3472_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3473{
3474 struct MPT2SAS_TARGET *sas_target_priv_data;
3475 struct _sas_device *sas_device;
3476 unsigned long flags;
3477 Mpi2SasIoUnitControlReply_t mpi_reply;
3478 Mpi2SasIoUnitControlRequest_t mpi_request;
3479 u16 device_handle;
3480
3481 /* lookup sas_device */
3482 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3483 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3484 if (!sas_device) {
3485 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3486 return;
3487 }
3488
3489 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: handle"
3490 "(0x%04x)\n", ioc->name, __func__, handle));
3491
3492 if (sas_device->starget && sas_device->starget->hostdata) {
3493 sas_target_priv_data = sas_device->starget->hostdata;
3494 sas_target_priv_data->deleted = 1;
3495 }
3496 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3497
3498 if (ioc->remove_host)
3499 goto out;
3500
3501 /* Target Reset to flush out all the outstanding IO */
3502 device_handle = (sas_device->hidden_raid_component) ?
3503 sas_device->volume_handle : handle;
3504 if (device_handle) {
3505 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset: "
3506 "handle(0x%04x)\n", ioc->name, device_handle));
3507 mutex_lock(&ioc->tm_cmds.mutex);
3508 mpt2sas_scsih_issue_tm(ioc, device_handle, 0,
3509 MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
3510 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3511 mutex_unlock(&ioc->tm_cmds.mutex);
3512 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "issue target reset "
3513 "done: handle(0x%04x)\n", ioc->name, device_handle));
3514 }
3515
3516 /* SAS_IO_UNIT_CNTR - send REMOVE_DEVICE */
3517 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: handle"
3518 "(0x%04x)\n", ioc->name, handle));
3519 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
3520 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
3521 mpi_request.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
3522 mpi_request.DevHandle = handle;
3523 mpi_request.VF_ID = 0;
3524 if ((mpt2sas_base_sas_iounit_control(ioc, &mpi_reply,
3525 &mpi_request)) != 0) {
3526 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3527 ioc->name, __FILE__, __LINE__, __func__);
3528 }
3529
3530 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sas_iounit: ioc_status"
3531 "(0x%04x), loginfo(0x%08x)\n", ioc->name,
3532 le16_to_cpu(mpi_reply.IOCStatus),
3533 le32_to_cpu(mpi_reply.IOCLogInfo)));
3534
3535 out:
3536 mpt2sas_transport_port_remove(ioc, sas_device->sas_address,
3537 sas_device->parent_handle);
3538
3539 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
3540 "(0x%016llx)\n", ioc->name, sas_device->handle,
3541 (unsigned long long) sas_device->sas_address);
3542 _scsih_sas_device_remove(ioc, sas_device);
3543
3544 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: handle"
3545 "(0x%04x)\n", ioc->name, __func__, handle));
3546}
3547
3548#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3549/**
3550 * _scsih_sas_topology_change_event_debug - debug for topology event
3551 * @ioc: per adapter object
3552 * @event_data: event data payload
3553 * Context: user.
3554 */
3555static void
3556_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3557 Mpi2EventDataSasTopologyChangeList_t *event_data)
3558{
3559 int i;
3560 u16 handle;
3561 u16 reason_code;
3562 u8 phy_number;
3563 char *status_str = NULL;
3564 char link_rate[25];
3565
3566 switch (event_data->ExpStatus) {
3567 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
3568 status_str = "add";
3569 break;
3570 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
3571 status_str = "remove";
3572 break;
3573 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
3574 status_str = "responding";
3575 break;
3576 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
3577 status_str = "remove delay";
3578 break;
3579 default:
3580 status_str = "unknown status";
3581 break;
3582 }
3583 printk(MPT2SAS_DEBUG_FMT "sas topology change: (%s)\n",
3584 ioc->name, status_str);
3585 printk(KERN_DEBUG "\thandle(0x%04x), enclosure_handle(0x%04x) "
3586 "start_phy(%02d), count(%d)\n",
3587 le16_to_cpu(event_data->ExpanderDevHandle),
3588 le16_to_cpu(event_data->EnclosureHandle),
3589 event_data->StartPhyNum, event_data->NumEntries);
3590 for (i = 0; i < event_data->NumEntries; i++) {
3591 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3592 if (!handle)
3593 continue;
3594 phy_number = event_data->StartPhyNum + i;
3595 reason_code = event_data->PHY[i].PhyStatus &
3596 MPI2_EVENT_SAS_TOPO_RC_MASK;
3597 switch (reason_code) {
3598 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3599 snprintf(link_rate, 25, ": add, link(0x%02x)",
3600 (event_data->PHY[i].LinkRate >> 4));
3601 status_str = link_rate;
3602 break;
3603 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3604 status_str = ": remove";
3605 break;
3606 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
3607 status_str = ": remove_delay";
3608 break;
3609 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3610 snprintf(link_rate, 25, ": link(0x%02x)",
3611 (event_data->PHY[i].LinkRate >> 4));
3612 status_str = link_rate;
3613 break;
3614 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
3615 status_str = ": responding";
3616 break;
3617 default:
3618 status_str = ": unknown";
3619 break;
3620 }
3621 printk(KERN_DEBUG "\tphy(%02d), attached_handle(0x%04x)%s\n",
3622 phy_number, handle, status_str);
3623 }
3624}
3625#endif
3626
3627/**
3628 * _scsih_sas_topology_change_event - handle topology changes
3629 * @ioc: per adapter object
3630 * @VF_ID:
3631 * @event_data: event data payload
3632 * fw_event:
3633 * Context: user.
3634 *
3635 */
3636static void
3637_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3638 Mpi2EventDataSasTopologyChangeList_t *event_data,
3639 struct fw_event_work *fw_event)
3640{
3641 int i;
3642 u16 parent_handle, handle;
3643 u16 reason_code;
3644 u8 phy_number;
3645 struct _sas_node *sas_expander;
3646 unsigned long flags;
3647 u8 link_rate_;
3648
3649#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3650 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
3651 _scsih_sas_topology_change_event_debug(ioc, event_data);
3652#endif
3653
3654 if (!ioc->sas_hba.num_phys)
3655 _scsih_sas_host_add(ioc);
3656 else
3657 _scsih_sas_host_refresh(ioc, 0);
3658
3659 if (fw_event->ignore) {
3660 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring expander "
3661 "event\n", ioc->name));
3662 return;
3663 }
3664
3665 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
3666
3667 /* handle expander add */
3668 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
3669 if (_scsih_expander_add(ioc, parent_handle) != 0)
3670 return;
3671
3672 /* handle siblings events */
3673 for (i = 0; i < event_data->NumEntries; i++) {
3674 if (fw_event->ignore) {
3675 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ignoring "
3676 "expander event\n", ioc->name));
3677 return;
3678 }
3679 if (event_data->PHY[i].PhyStatus &
3680 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
3681 continue;
3682 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
3683 if (!handle)
3684 continue;
3685 phy_number = event_data->StartPhyNum + i;
3686 reason_code = event_data->PHY[i].PhyStatus &
3687 MPI2_EVENT_SAS_TOPO_RC_MASK;
3688 link_rate_ = event_data->PHY[i].LinkRate >> 4;
3689 switch (reason_code) {
3690 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
3691 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
3692 if (!parent_handle) {
3693 if (phy_number < ioc->sas_hba.num_phys)
3694 _scsih_link_change(ioc,
3695 ioc->sas_hba.phy[phy_number].handle,
3696 handle, phy_number, link_rate_);
3697 } else {
3698 spin_lock_irqsave(&ioc->sas_node_lock, flags);
3699 sas_expander =
3700 mpt2sas_scsih_expander_find_by_handle(ioc,
3701 parent_handle);
3702 spin_unlock_irqrestore(&ioc->sas_node_lock,
3703 flags);
3704 if (sas_expander) {
3705 if (phy_number < sas_expander->num_phys)
3706 _scsih_link_change(ioc,
3707 sas_expander->
3708 phy[phy_number].handle,
3709 handle, phy_number,
3710 link_rate_);
3711 }
3712 }
3713 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED) {
3714 if (link_rate_ >= MPI2_SAS_NEG_LINK_RATE_1_5)
3715 _scsih_ublock_io_device(ioc, handle);
3716 }
3717 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED) {
3718 if (link_rate_ < MPI2_SAS_NEG_LINK_RATE_1_5)
3719 break;
3720 _scsih_add_device(ioc, handle, phy_number, 0);
3721 }
3722 break;
3723 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
3724 _scsih_remove_device(ioc, handle);
3725 break;
3726 }
3727 }
3728
3729 /* handle expander removal */
3730 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
3731 _scsih_expander_remove(ioc, parent_handle);
3732
3733}
3734
3735#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3736/**
3737 * _scsih_sas_device_status_change_event_debug - debug for device event
3738 * @event_data: event data payload
3739 * Context: user.
3740 *
3741 * Return nothing.
3742 */
3743static void
3744_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3745 Mpi2EventDataSasDeviceStatusChange_t *event_data)
3746{
3747 char *reason_str = NULL;
3748
3749 switch (event_data->ReasonCode) {
3750 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
3751 reason_str = "smart data";
3752 break;
3753 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
3754 reason_str = "unsupported device discovered";
3755 break;
3756 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
3757 reason_str = "internal device reset";
3758 break;
3759 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
3760 reason_str = "internal task abort";
3761 break;
3762 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
3763 reason_str = "internal task abort set";
3764 break;
3765 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
3766 reason_str = "internal clear task set";
3767 break;
3768 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
3769 reason_str = "internal query task";
3770 break;
3771 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
3772 reason_str = "sata init failure";
3773 break;
3774 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
3775 reason_str = "internal device reset complete";
3776 break;
3777 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
3778 reason_str = "internal task abort complete";
3779 break;
3780 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
3781 reason_str = "internal async notification";
3782 break;
3783 default:
3784 reason_str = "unknown reason";
3785 break;
3786 }
3787 printk(MPT2SAS_DEBUG_FMT "device status change: (%s)\n"
3788 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
3789 reason_str, le16_to_cpu(event_data->DevHandle),
3790 (unsigned long long)le64_to_cpu(event_data->SASAddress));
3791 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
3792 printk(MPT2SAS_DEBUG_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
3793 event_data->ASC, event_data->ASCQ);
3794 printk(KERN_INFO "\n");
3795}
3796#endif
3797
3798/**
3799 * _scsih_sas_device_status_change_event - handle device status change
3800 * @ioc: per adapter object
3801 * @VF_ID:
3802 * @event_data: event data payload
3803 * Context: user.
3804 *
3805 * Return nothing.
3806 */
3807static void
3808_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3809 Mpi2EventDataSasDeviceStatusChange_t *event_data)
3810{
3811#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3812 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
3813 _scsih_sas_device_status_change_event_debug(ioc, event_data);
3814#endif
3815}
3816
3817#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3818/**
3819 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
3820 * @ioc: per adapter object
3821 * @event_data: event data payload
3822 * Context: user.
3823 *
3824 * Return nothing.
3825 */
3826static void
3827_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
3828 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
3829{
3830 char *reason_str = NULL;
3831
3832 switch (event_data->ReasonCode) {
3833 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
3834 reason_str = "enclosure add";
3835 break;
3836 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
3837 reason_str = "enclosure remove";
3838 break;
3839 default:
3840 reason_str = "unknown reason";
3841 break;
3842 }
3843
3844 printk(MPT2SAS_DEBUG_FMT "enclosure status change: (%s)\n"
3845 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
3846 " number slots(%d)\n", ioc->name, reason_str,
3847 le16_to_cpu(event_data->EnclosureHandle),
3848 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
3849 le16_to_cpu(event_data->StartSlot));
3850}
3851#endif
3852
3853/**
3854 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
3855 * @ioc: per adapter object
3856 * @VF_ID:
3857 * @event_data: event data payload
3858 * Context: user.
3859 *
3860 * Return nothing.
3861 */
3862static void
3863_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
3864 u8 VF_ID, Mpi2EventDataSasEnclDevStatusChange_t *event_data)
3865{
3866#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3867 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
3868 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
3869 event_data);
3870#endif
3871}
3872
3873/**
3874 * _scsih_sas_broadcast_primative_event - handle broadcast events
3875 * @ioc: per adapter object
3876 * @event_data: event data payload
3877 * Context: user.
3878 *
3879 * Return nothing.
3880 */
3881static void
3882_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3883 Mpi2EventDataSasBroadcastPrimitive_t *event_data)
3884{
3885 struct scsi_cmnd *scmd;
3886 u16 smid, handle;
3887 u32 lun;
3888 struct MPT2SAS_DEVICE *sas_device_priv_data;
3889 u32 termination_count;
3890 u32 query_count;
3891 Mpi2SCSITaskManagementReply_t *mpi_reply;
3892
3893 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "broadcast primative: "
3894 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
3895 event_data->PortWidth));
3896
3897 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
3898 __func__));
3899
3900 mutex_lock(&ioc->tm_cmds.mutex);
3901 termination_count = 0;
3902 query_count = 0;
3903 mpi_reply = ioc->tm_cmds.reply;
3904 for (smid = 1; smid <= ioc->request_depth; smid++) {
3905 scmd = _scsih_scsi_lookup_get(ioc, smid);
3906 if (!scmd)
3907 continue;
3908 sas_device_priv_data = scmd->device->hostdata;
3909 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
3910 continue;
3911 /* skip hidden raid components */
3912 if (sas_device_priv_data->sas_target->flags &
3913 MPT_TARGET_FLAGS_RAID_COMPONENT)
3914 continue;
3915 /* skip volumes */
3916 if (sas_device_priv_data->sas_target->flags &
3917 MPT_TARGET_FLAGS_VOLUME)
3918 continue;
3919
3920 handle = sas_device_priv_data->sas_target->handle;
3921 lun = sas_device_priv_data->lun;
3922 query_count++;
3923
3924 mpt2sas_scsih_issue_tm(ioc, handle, lun,
3925 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
3926 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
3927
3928 if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
3929 (mpi_reply->ResponseCode ==
3930 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
3931 mpi_reply->ResponseCode ==
3932 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
3933 continue;
3934
3935 mpt2sas_scsih_issue_tm(ioc, handle, lun,
3936 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, smid, 30);
3937 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
3938 }
3939 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
3940 ioc->broadcast_aen_busy = 0;
3941 mutex_unlock(&ioc->tm_cmds.mutex);
3942
3943 dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT
3944 "%s - exit, query_count = %d termination_count = %d\n",
3945 ioc->name, __func__, query_count, termination_count));
3946}
3947
3948/**
3949 * _scsih_sas_discovery_event - handle discovery events
3950 * @ioc: per adapter object
3951 * @event_data: event data payload
3952 * Context: user.
3953 *
3954 * Return nothing.
3955 */
3956static void
3957_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
3958 Mpi2EventDataSasDiscovery_t *event_data)
3959{
3960#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3961 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
3962 printk(MPT2SAS_DEBUG_FMT "discovery event: (%s)", ioc->name,
3963 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
3964 "start" : "stop");
3965 if (event_data->DiscoveryStatus)
3966 printk(MPT2SAS_DEBUG_FMT ", discovery_status(0x%08x)",
3967 ioc->name, le32_to_cpu(event_data->DiscoveryStatus));
3968 printk("\n");
3969 }
3970#endif
3971
3972 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
3973 !ioc->sas_hba.num_phys)
3974 _scsih_sas_host_add(ioc);
3975}
3976
3977/**
3978 * _scsih_reprobe_lun - reprobing lun
3979 * @sdev: scsi device struct
3980 * @no_uld_attach: sdev->no_uld_attach flag setting
3981 *
3982 **/
3983static void
3984_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
3985{
3986 int rc;
3987
3988 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
3989 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
3990 sdev->no_uld_attach ? "hidding" : "exposing");
3991 rc = scsi_device_reprobe(sdev);
3992}
3993
3994/**
3995 * _scsih_reprobe_target - reprobing target
3996 * @starget: scsi target struct
3997 * @no_uld_attach: sdev->no_uld_attach flag setting
3998 *
3999 * Note: no_uld_attach flag determines whether the disk device is attached
4000 * to block layer. A value of `1` means to not attach.
4001 **/
4002static void
4003_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
4004{
4005 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
4006
4007 if (no_uld_attach)
4008 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
4009 else
4010 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
4011
4012 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
4013 _scsih_reprobe_lun);
4014}
4015/**
4016 * _scsih_sas_volume_add - add new volume
4017 * @ioc: per adapter object
4018 * @element: IR config element data
4019 * Context: user.
4020 *
4021 * Return nothing.
4022 */
4023static void
4024_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
4025 Mpi2EventIrConfigElement_t *element)
4026{
4027 struct _raid_device *raid_device;
4028 unsigned long flags;
4029 u64 wwid;
4030 u16 handle = le16_to_cpu(element->VolDevHandle);
4031 int rc;
4032
4033#if 0 /* RAID_HACKS */
4034 if (le32_to_cpu(event_data->Flags) &
4035 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
4036 return;
4037#endif
4038
4039 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4040 if (!wwid) {
4041 printk(MPT2SAS_ERR_FMT
4042 "failure at %s:%d/%s()!\n", ioc->name,
4043 __FILE__, __LINE__, __func__);
4044 return;
4045 }
4046
4047 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4048 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
4049 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4050
4051 if (raid_device)
4052 return;
4053
4054 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4055 if (!raid_device) {
4056 printk(MPT2SAS_ERR_FMT
4057 "failure at %s:%d/%s()!\n", ioc->name,
4058 __FILE__, __LINE__, __func__);
4059 return;
4060 }
4061
4062 raid_device->id = ioc->sas_id++;
4063 raid_device->channel = RAID_CHANNEL;
4064 raid_device->handle = handle;
4065 raid_device->wwid = wwid;
4066 _scsih_raid_device_add(ioc, raid_device);
4067 if (!ioc->wait_for_port_enable_to_complete) {
4068 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4069 raid_device->id, 0);
4070 if (rc)
4071 _scsih_raid_device_remove(ioc, raid_device);
4072 } else
4073 _scsih_determine_boot_device(ioc, raid_device, 1);
4074}
4075
4076/**
4077 * _scsih_sas_volume_delete - delete volume
4078 * @ioc: per adapter object
4079 * @element: IR config element data
4080 * Context: user.
4081 *
4082 * Return nothing.
4083 */
4084static void
4085_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc,
4086 Mpi2EventIrConfigElement_t *element)
4087{
4088 struct _raid_device *raid_device;
4089 u16 handle = le16_to_cpu(element->VolDevHandle);
4090 unsigned long flags;
4091 struct MPT2SAS_TARGET *sas_target_priv_data;
4092
4093#if 0 /* RAID_HACKS */
4094 if (le32_to_cpu(event_data->Flags) &
4095 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
4096 return;
4097#endif
4098
4099 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4100 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4101 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4102 if (!raid_device)
4103 return;
4104 if (raid_device->starget) {
4105 sas_target_priv_data = raid_device->starget->hostdata;
4106 sas_target_priv_data->deleted = 1;
4107 scsi_remove_target(&raid_device->starget->dev);
4108 }
4109 _scsih_raid_device_remove(ioc, raid_device);
4110}
4111
4112/**
4113 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
4114 * @ioc: per adapter object
4115 * @element: IR config element data
4116 * Context: user.
4117 *
4118 * Return nothing.
4119 */
4120static void
4121_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
4122 Mpi2EventIrConfigElement_t *element)
4123{
4124 struct _sas_device *sas_device;
4125 unsigned long flags;
4126 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4127
4128 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4129 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4130 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4131 if (!sas_device)
4132 return;
4133
4134 /* exposing raid component */
4135 sas_device->volume_handle = 0;
4136 sas_device->volume_wwid = 0;
4137 sas_device->hidden_raid_component = 0;
4138 _scsih_reprobe_target(sas_device->starget, 0);
4139}
4140
4141/**
4142 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
4143 * @ioc: per adapter object
4144 * @element: IR config element data
4145 * Context: user.
4146 *
4147 * Return nothing.
4148 */
4149static void
4150_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
4151 Mpi2EventIrConfigElement_t *element)
4152{
4153 struct _sas_device *sas_device;
4154 unsigned long flags;
4155 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4156
4157 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4158 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4159 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4160 if (!sas_device)
4161 return;
4162
4163 /* hiding raid component */
4164 mpt2sas_config_get_volume_handle(ioc, handle,
4165 &sas_device->volume_handle);
4166 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
4167 &sas_device->volume_wwid);
4168 sas_device->hidden_raid_component = 1;
4169 _scsih_reprobe_target(sas_device->starget, 1);
4170}
4171
4172/**
4173 * _scsih_sas_pd_delete - delete pd component
4174 * @ioc: per adapter object
4175 * @element: IR config element data
4176 * Context: user.
4177 *
4178 * Return nothing.
4179 */
4180static void
4181_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
4182 Mpi2EventIrConfigElement_t *element)
4183{
4184 struct _sas_device *sas_device;
4185 unsigned long flags;
4186 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4187
4188 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4189 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4190 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4191 if (!sas_device)
4192 return;
4193 _scsih_remove_device(ioc, handle);
4194}
4195
4196/**
4197 * _scsih_sas_pd_add - remove pd component
4198 * @ioc: per adapter object
4199 * @element: IR config element data
4200 * Context: user.
4201 *
4202 * Return nothing.
4203 */
4204static void
4205_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
4206 Mpi2EventIrConfigElement_t *element)
4207{
4208 struct _sas_device *sas_device;
4209 unsigned long flags;
4210 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
4211
4212 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4213 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4214 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4215 if (sas_device)
4216 sas_device->hidden_raid_component = 1;
4217 else
4218 _scsih_add_device(ioc, handle, 0, 1);
4219}
4220
4221#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4222/**
4223 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
4224 * @ioc: per adapter object
4225 * @event_data: event data payload
4226 * Context: user.
4227 *
4228 * Return nothing.
4229 */
4230static void
4231_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4232 Mpi2EventDataIrConfigChangeList_t *event_data)
4233{
4234 Mpi2EventIrConfigElement_t *element;
4235 u8 element_type;
4236 int i;
4237 char *reason_str = NULL, *element_str = NULL;
4238
4239 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4240
4241 printk(MPT2SAS_DEBUG_FMT "raid config change: (%s), elements(%d)\n",
4242 ioc->name, (le32_to_cpu(event_data->Flags) &
4243 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
4244 "foreign" : "native", event_data->NumElements);
4245 for (i = 0; i < event_data->NumElements; i++, element++) {
4246 switch (element->ReasonCode) {
4247 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4248 reason_str = "add";
4249 break;
4250 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4251 reason_str = "remove";
4252 break;
4253 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
4254 reason_str = "no change";
4255 break;
4256 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4257 reason_str = "hide";
4258 break;
4259 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4260 reason_str = "unhide";
4261 break;
4262 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4263 reason_str = "volume_created";
4264 break;
4265 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4266 reason_str = "volume_deleted";
4267 break;
4268 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4269 reason_str = "pd_created";
4270 break;
4271 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4272 reason_str = "pd_deleted";
4273 break;
4274 default:
4275 reason_str = "unknown reason";
4276 break;
4277 }
4278 element_type = le16_to_cpu(element->ElementFlags) &
4279 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
4280 switch (element_type) {
4281 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
4282 element_str = "volume";
4283 break;
4284 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
4285 element_str = "phys disk";
4286 break;
4287 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
4288 element_str = "hot spare";
4289 break;
4290 default:
4291 element_str = "unknown element";
4292 break;
4293 }
4294 printk(KERN_DEBUG "\t(%s:%s), vol handle(0x%04x), "
4295 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
4296 reason_str, le16_to_cpu(element->VolDevHandle),
4297 le16_to_cpu(element->PhysDiskDevHandle),
4298 element->PhysDiskNum);
4299 }
4300}
4301#endif
4302
4303/**
4304 * _scsih_sas_ir_config_change_event - handle ir configuration change events
4305 * @ioc: per adapter object
4306 * @VF_ID:
4307 * @event_data: event data payload
4308 * Context: user.
4309 *
4310 * Return nothing.
4311 */
4312static void
4313_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4314 Mpi2EventDataIrConfigChangeList_t *event_data)
4315{
4316 Mpi2EventIrConfigElement_t *element;
4317 int i;
4318
4319#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4320 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4321 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
4322
4323#endif
4324
4325 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
4326 for (i = 0; i < event_data->NumElements; i++, element++) {
4327
4328 switch (element->ReasonCode) {
4329 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
4330 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
4331 _scsih_sas_volume_add(ioc, element);
4332 break;
4333 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
4334 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
4335 _scsih_sas_volume_delete(ioc, element);
4336 break;
4337 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
4338 _scsih_sas_pd_hide(ioc, element);
4339 break;
4340 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
4341 _scsih_sas_pd_expose(ioc, element);
4342 break;
4343 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
4344 _scsih_sas_pd_add(ioc, element);
4345 break;
4346 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
4347 _scsih_sas_pd_delete(ioc, element);
4348 break;
4349 }
4350 }
4351}
4352
4353/**
4354 * _scsih_sas_ir_volume_event - IR volume event
4355 * @ioc: per adapter object
4356 * @event_data: event data payload
4357 * Context: user.
4358 *
4359 * Return nothing.
4360 */
4361static void
4362_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4363 Mpi2EventDataIrVolume_t *event_data)
4364{
4365 u64 wwid;
4366 unsigned long flags;
4367 struct _raid_device *raid_device;
4368 u16 handle;
4369 u32 state;
4370 int rc;
4371 struct MPT2SAS_TARGET *sas_target_priv_data;
4372
4373 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
4374 return;
4375
4376 handle = le16_to_cpu(event_data->VolDevHandle);
4377 state = le32_to_cpu(event_data->NewValue);
4378 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4379 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4380 le32_to_cpu(event_data->PreviousValue), state));
4381
4382 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4383 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
4384 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4385
4386 switch (state) {
4387 case MPI2_RAID_VOL_STATE_MISSING:
4388 case MPI2_RAID_VOL_STATE_FAILED:
4389 if (!raid_device)
4390 break;
4391 if (raid_device->starget) {
4392 sas_target_priv_data = raid_device->starget->hostdata;
4393 sas_target_priv_data->deleted = 1;
4394 scsi_remove_target(&raid_device->starget->dev);
4395 }
4396 _scsih_raid_device_remove(ioc, raid_device);
4397 break;
4398
4399 case MPI2_RAID_VOL_STATE_ONLINE:
4400 case MPI2_RAID_VOL_STATE_DEGRADED:
4401 case MPI2_RAID_VOL_STATE_OPTIMAL:
4402 if (raid_device)
4403 break;
4404
4405 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
4406 if (!wwid) {
4407 printk(MPT2SAS_ERR_FMT
4408 "failure at %s:%d/%s()!\n", ioc->name,
4409 __FILE__, __LINE__, __func__);
4410 break;
4411 }
4412
4413 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
4414 if (!raid_device) {
4415 printk(MPT2SAS_ERR_FMT
4416 "failure at %s:%d/%s()!\n", ioc->name,
4417 __FILE__, __LINE__, __func__);
4418 break;
4419 }
4420
4421 raid_device->id = ioc->sas_id++;
4422 raid_device->channel = RAID_CHANNEL;
4423 raid_device->handle = handle;
4424 raid_device->wwid = wwid;
4425 _scsih_raid_device_add(ioc, raid_device);
4426 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
4427 raid_device->id, 0);
4428 if (rc)
4429 _scsih_raid_device_remove(ioc, raid_device);
4430 break;
4431
4432 case MPI2_RAID_VOL_STATE_INITIALIZING:
4433 default:
4434 break;
4435 }
4436}
4437
4438/**
4439 * _scsih_sas_ir_physical_disk_event - PD event
4440 * @ioc: per adapter object
4441 * @event_data: event data payload
4442 * Context: user.
4443 *
4444 * Return nothing.
4445 */
4446static void
4447_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4448 Mpi2EventDataIrPhysicalDisk_t *event_data)
4449{
4450 u16 handle;
4451 u32 state;
4452 struct _sas_device *sas_device;
4453 unsigned long flags;
4454
4455 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
4456 return;
4457
4458 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
4459 state = le32_to_cpu(event_data->NewValue);
4460
4461 dewtprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: handle(0x%04x), "
4462 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
4463 le32_to_cpu(event_data->PreviousValue), state));
4464
4465 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4466 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4467 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4468
4469 switch (state) {
4470#if 0
4471 case MPI2_RAID_PD_STATE_OFFLINE:
4472 if (sas_device)
4473 _scsih_remove_device(ioc, handle);
4474 break;
4475#endif
4476 case MPI2_RAID_PD_STATE_ONLINE:
4477 case MPI2_RAID_PD_STATE_DEGRADED:
4478 case MPI2_RAID_PD_STATE_REBUILDING:
4479 case MPI2_RAID_PD_STATE_OPTIMAL:
4480 if (sas_device)
4481 sas_device->hidden_raid_component = 1;
4482 else
4483 _scsih_add_device(ioc, handle, 0, 1);
4484 break;
4485
4486 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
4487 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
4488 case MPI2_RAID_PD_STATE_HOT_SPARE:
4489 default:
4490 break;
4491 }
4492}
4493
4494#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4495/**
4496 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
4497 * @ioc: per adapter object
4498 * @event_data: event data payload
4499 * Context: user.
4500 *
4501 * Return nothing.
4502 */
4503static void
4504_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
4505 Mpi2EventDataIrOperationStatus_t *event_data)
4506{
4507 char *reason_str = NULL;
4508
4509 switch (event_data->RAIDOperation) {
4510 case MPI2_EVENT_IR_RAIDOP_RESYNC:
4511 reason_str = "resync";
4512 break;
4513 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
4514 reason_str = "online capacity expansion";
4515 break;
4516 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
4517 reason_str = "consistency check";
4518 break;
4519 default:
4520 reason_str = "unknown reason";
4521 break;
4522 }
4523
4524 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
4525 "\thandle(0x%04x), percent complete(%d)\n",
4526 ioc->name, reason_str,
4527 le16_to_cpu(event_data->VolDevHandle),
4528 event_data->PercentComplete);
4529}
4530#endif
4531
4532/**
4533 * _scsih_sas_ir_operation_status_event - handle RAID operation events
4534 * @ioc: per adapter object
4535 * @VF_ID:
4536 * @event_data: event data payload
4537 * Context: user.
4538 *
4539 * Return nothing.
4540 */
4541static void
4542_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4543 Mpi2EventDataIrOperationStatus_t *event_data)
4544{
4545#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4546 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4547 _scsih_sas_ir_operation_status_event_debug(ioc, event_data);
4548#endif
4549}
4550
4551/**
4552 * _scsih_task_set_full - handle task set full
4553 * @ioc: per adapter object
4554 * @event_data: event data payload
4555 * Context: user.
4556 *
4557 * Throttle back qdepth.
4558 */
4559static void
4560_scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
4561 Mpi2EventDataTaskSetFull_t *event_data)
4562{
4563 unsigned long flags;
4564 struct _sas_device *sas_device;
4565 static struct _raid_device *raid_device;
4566 struct scsi_device *sdev;
4567 int depth;
4568 u16 current_depth;
4569 u16 handle;
4570 int id, channel;
4571 u64 sas_address;
4572
4573 current_depth = le16_to_cpu(event_data->CurrentDepth);
4574 handle = le16_to_cpu(event_data->DevHandle);
4575 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4576 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
4577 if (!sas_device) {
4578 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4579 return;
4580 }
4581 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4582 id = sas_device->id;
4583 channel = sas_device->channel;
4584 sas_address = sas_device->sas_address;
4585
4586 /* if hidden raid component, then change to volume characteristics */
4587 if (sas_device->hidden_raid_component && sas_device->volume_handle) {
4588 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4589 raid_device = _scsih_raid_device_find_by_handle(
4590 ioc, sas_device->volume_handle);
4591 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4592 if (raid_device) {
4593 id = raid_device->id;
4594 channel = raid_device->channel;
4595 handle = raid_device->handle;
4596 sas_address = raid_device->wwid;
4597 }
4598 }
4599
4600 if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
4601 starget_printk(KERN_DEBUG, sas_device->starget, "task set "
4602 "full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
4603 handle, (unsigned long long)sas_address, current_depth);
4604
4605 shost_for_each_device(sdev, ioc->shost) {
4606 if (sdev->id == id && sdev->channel == channel) {
4607 if (current_depth > sdev->queue_depth) {
4608 if (ioc->logging_level &
4609 MPT_DEBUG_TASK_SET_FULL)
4610 sdev_printk(KERN_INFO, sdev, "strange "
4611 "observation, the queue depth is"
4612 " (%d) meanwhile fw queue depth "
4613 "is (%d)\n", sdev->queue_depth,
4614 current_depth);
4615 continue;
4616 }
4617 depth = scsi_track_queue_full(sdev,
4618 current_depth - 1);
4619 if (depth > 0)
4620 sdev_printk(KERN_INFO, sdev, "Queue depth "
4621 "reduced to (%d)\n", depth);
4622 else if (depth < 0)
4623 sdev_printk(KERN_INFO, sdev, "Tagged Command "
4624 "Queueing is being disabled\n");
4625 else if (depth == 0)
4626 if (ioc->logging_level &
4627 MPT_DEBUG_TASK_SET_FULL)
4628 sdev_printk(KERN_INFO, sdev,
4629 "Queue depth not changed yet\n");
4630 }
4631 }
4632}
4633
4634/**
4635 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
4636 * @ioc: per adapter object
4637 * @sas_address: sas address
4638 * @slot: enclosure slot id
4639 * @handle: device handle
4640 *
4641 * After host reset, find out whether devices are still responding.
4642 * Used in _scsi_remove_unresponsive_sas_devices.
4643 *
4644 * Return nothing.
4645 */
4646static void
4647_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4648 u16 slot, u16 handle)
4649{
4650 struct MPT2SAS_TARGET *sas_target_priv_data;
4651 struct scsi_target *starget;
4652 struct _sas_device *sas_device;
4653 unsigned long flags;
4654
4655 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4656 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
4657 if (sas_device->sas_address == sas_address &&
4658 sas_device->slot == slot && sas_device->starget) {
4659 sas_device->responding = 1;
4660 starget_printk(KERN_INFO, sas_device->starget,
4661 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
4662 "logical id(0x%016llx), slot(%d)\n", handle,
4663 (unsigned long long)sas_device->sas_address,
4664 (unsigned long long)
4665 sas_device->enclosure_logical_id,
4666 sas_device->slot);
4667 if (sas_device->handle == handle)
4668 goto out;
4669 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4670 sas_device->handle);
4671 sas_device->handle = handle;
4672 starget = sas_device->starget;
4673 sas_target_priv_data = starget->hostdata;
4674 sas_target_priv_data->handle = handle;
4675 goto out;
4676 }
4677 }
4678 out:
4679 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4680}
4681
4682/**
4683 * _scsih_search_responding_sas_devices -
4684 * @ioc: per adapter object
4685 *
4686 * After host reset, find out whether devices are still responding.
4687 * If not remove.
4688 *
4689 * Return nothing.
4690 */
4691static void
4692_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
4693{
4694 Mpi2SasDevicePage0_t sas_device_pg0;
4695 Mpi2ConfigReply_t mpi_reply;
4696 u16 ioc_status;
4697 __le64 sas_address;
4698 u16 handle;
4699 u32 device_info;
4700 u16 slot;
4701
4702 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
4703
4704 if (list_empty(&ioc->sas_device_list))
4705 return;
4706
4707 handle = 0xFFFF;
4708 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
4709 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
4710 handle))) {
4711 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4712 MPI2_IOCSTATUS_MASK;
4713 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
4714 break;
4715 handle = le16_to_cpu(sas_device_pg0.DevHandle);
4716 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4717 if (!(_scsih_is_end_device(device_info)))
4718 continue;
4719 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4720 slot = le16_to_cpu(sas_device_pg0.Slot);
4721 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
4722 handle);
4723 }
4724}
4725
4726/**
4727 * _scsih_mark_responding_raid_device - mark a raid_device as responding
4728 * @ioc: per adapter object
4729 * @wwid: world wide identifier for raid volume
4730 * @handle: device handle
4731 *
4732 * After host reset, find out whether devices are still responding.
4733 * Used in _scsi_remove_unresponsive_raid_devices.
4734 *
4735 * Return nothing.
4736 */
4737static void
4738_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
4739 u16 handle)
4740{
4741 struct MPT2SAS_TARGET *sas_target_priv_data;
4742 struct scsi_target *starget;
4743 struct _raid_device *raid_device;
4744 unsigned long flags;
4745
4746 spin_lock_irqsave(&ioc->raid_device_lock, flags);
4747 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
4748 if (raid_device->wwid == wwid && raid_device->starget) {
4749 raid_device->responding = 1;
4750 starget_printk(KERN_INFO, raid_device->starget,
4751 "handle(0x%04x), wwid(0x%016llx)\n", handle,
4752 (unsigned long long)raid_device->wwid);
4753 if (raid_device->handle == handle)
4754 goto out;
4755 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
4756 raid_device->handle);
4757 raid_device->handle = handle;
4758 starget = raid_device->starget;
4759 sas_target_priv_data = starget->hostdata;
4760 sas_target_priv_data->handle = handle;
4761 goto out;
4762 }
4763 }
4764 out:
4765 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
4766}
4767
4768/**
4769 * _scsih_search_responding_raid_devices -
4770 * @ioc: per adapter object
4771 *
4772 * After host reset, find out whether devices are still responding.
4773 * If not remove.
4774 *
4775 * Return nothing.
4776 */
4777static void
4778_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
4779{
4780 Mpi2RaidVolPage1_t volume_pg1;
4781 Mpi2ConfigReply_t mpi_reply;
4782 u16 ioc_status;
4783 u16 handle;
4784
4785 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
4786
4787 if (list_empty(&ioc->raid_device_list))
4788 return;
4789
4790 handle = 0xFFFF;
4791 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
4792 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
4793 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4794 MPI2_IOCSTATUS_MASK;
4795 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
4796 break;
4797 handle = le16_to_cpu(volume_pg1.DevHandle);
4798 _scsih_mark_responding_raid_device(ioc,
4799 le64_to_cpu(volume_pg1.WWID), handle);
4800 }
4801}
4802
4803/**
4804 * _scsih_mark_responding_expander - mark a expander as responding
4805 * @ioc: per adapter object
4806 * @sas_address: sas address
4807 * @handle:
4808 *
4809 * After host reset, find out whether devices are still responding.
4810 * Used in _scsi_remove_unresponsive_expanders.
4811 *
4812 * Return nothing.
4813 */
4814static void
4815_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4816 u16 handle)
4817{
4818 struct _sas_node *sas_expander;
4819 unsigned long flags;
4820
4821 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4822 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
4823 if (sas_expander->sas_address == sas_address) {
4824 sas_expander->responding = 1;
4825 if (sas_expander->handle != handle) {
4826 printk(KERN_INFO "old handle(0x%04x)\n",
4827 sas_expander->handle);
4828 sas_expander->handle = handle;
4829 }
4830 goto out;
4831 }
4832 }
4833 out:
4834 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4835}
4836
4837/**
4838 * _scsih_search_responding_expanders -
4839 * @ioc: per adapter object
4840 *
4841 * After host reset, find out whether devices are still responding.
4842 * If not remove.
4843 *
4844 * Return nothing.
4845 */
4846static void
4847_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
4848{
4849 Mpi2ExpanderPage0_t expander_pg0;
4850 Mpi2ConfigReply_t mpi_reply;
4851 u16 ioc_status;
4852 __le64 sas_address;
4853 u16 handle;
4854
4855 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
4856
4857 if (list_empty(&ioc->sas_expander_list))
4858 return;
4859
4860 handle = 0xFFFF;
4861 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4862 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
4863
4864 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4865 MPI2_IOCSTATUS_MASK;
4866 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
4867 break;
4868
4869 handle = le16_to_cpu(expander_pg0.DevHandle);
4870 sas_address = le64_to_cpu(expander_pg0.SASAddress);
4871 printk(KERN_INFO "\texpander present: handle(0x%04x), "
4872 "sas_addr(0x%016llx)\n", handle,
4873 (unsigned long long)sas_address);
4874 _scsih_mark_responding_expander(ioc, sas_address, handle);
4875 }
4876
4877}
4878
4879/**
4880 * _scsih_remove_unresponding_devices - removing unresponding devices
4881 * @ioc: per adapter object
4882 *
4883 * Return nothing.
4884 */
4885static void
4886_scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc)
4887{
4888 struct _sas_device *sas_device, *sas_device_next;
4889 struct _sas_node *sas_expander, *sas_expander_next;
4890 struct _raid_device *raid_device, *raid_device_next;
4891 unsigned long flags;
4892
4893 _scsih_search_responding_sas_devices(ioc);
4894 _scsih_search_responding_raid_devices(ioc);
4895 _scsih_search_responding_expanders(ioc);
4896
4897 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
4898 ioc->shost_recovery = 0;
4899 if (ioc->shost->shost_state == SHOST_RECOVERY) {
4900 printk(MPT2SAS_INFO_FMT "putting controller into "
4901 "SHOST_RUNNING\n", ioc->name);
4902 scsi_host_set_state(ioc->shost, SHOST_RUNNING);
4903 }
4904 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
4905
4906 list_for_each_entry_safe(sas_device, sas_device_next,
4907 &ioc->sas_device_list, list) {
4908 if (sas_device->responding) {
4909 sas_device->responding = 0;
4910 continue;
4911 }
4912 if (sas_device->starget)
4913 starget_printk(KERN_INFO, sas_device->starget,
4914 "removing: handle(0x%04x), sas_addr(0x%016llx), "
4915 "enclosure logical id(0x%016llx), slot(%d)\n",
4916 sas_device->handle,
4917 (unsigned long long)sas_device->sas_address,
4918 (unsigned long long)
4919 sas_device->enclosure_logical_id,
4920 sas_device->slot);
4921 _scsih_remove_device(ioc, sas_device->handle);
4922 }
4923
4924 list_for_each_entry_safe(raid_device, raid_device_next,
4925 &ioc->raid_device_list, list) {
4926 if (raid_device->responding) {
4927 raid_device->responding = 0;
4928 continue;
4929 }
4930 if (raid_device->starget) {
4931 starget_printk(KERN_INFO, raid_device->starget,
4932 "removing: handle(0x%04x), wwid(0x%016llx)\n",
4933 raid_device->handle,
4934 (unsigned long long)raid_device->wwid);
4935 scsi_remove_target(&raid_device->starget->dev);
4936 }
4937 _scsih_raid_device_remove(ioc, raid_device);
4938 }
4939
4940 list_for_each_entry_safe(sas_expander, sas_expander_next,
4941 &ioc->sas_expander_list, list) {
4942 if (sas_expander->responding) {
4943 sas_expander->responding = 0;
4944 continue;
4945 }
4946 printk("\tremoving expander: handle(0x%04x), "
4947 " sas_addr(0x%016llx)\n", sas_expander->handle,
4948 (unsigned long long)sas_expander->sas_address);
4949 _scsih_expander_remove(ioc, sas_expander->handle);
4950 }
4951}
4952
4953/**
4954 * _firmware_event_work - delayed task for processing firmware events
4955 * @ioc: per adapter object
4956 * @work: equal to the fw_event_work object
4957 * Context: user.
4958 *
4959 * Return nothing.
4960 */
4961static void
4962_firmware_event_work(struct work_struct *work)
4963{
4964 struct fw_event_work *fw_event = container_of(work,
4965 struct fw_event_work, work.work);
4966 unsigned long flags;
4967 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
4968
4969 /* This is invoked by calling _scsih_queue_rescan(). */
4970 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
4971 _scsih_fw_event_free(ioc, fw_event);
4972 _scsih_sas_host_refresh(ioc, 1);
4973 _scsih_remove_unresponding_devices(ioc);
4974 return;
4975 }
4976
4977 /* the queue is being flushed so ignore this event */
4978 spin_lock_irqsave(&ioc->fw_event_lock, flags);
4979 if (ioc->fw_events_off || ioc->remove_host) {
4980 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
4981 _scsih_fw_event_free(ioc, fw_event);
4982 return;
4983 }
4984 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
4985
4986 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
4987 if (ioc->shost_recovery) {
4988 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
4989 _scsih_fw_event_requeue(ioc, fw_event, 1000);
4990 return;
4991 }
4992 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
4993
4994 switch (fw_event->event) {
4995 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
4996 _scsih_sas_topology_change_event(ioc, fw_event->VF_ID,
4997 fw_event->event_data, fw_event);
4998 break;
4999 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5000 _scsih_sas_device_status_change_event(ioc, fw_event->VF_ID,
5001 fw_event->event_data);
5002 break;
5003 case MPI2_EVENT_SAS_DISCOVERY:
5004 _scsih_sas_discovery_event(ioc, fw_event->VF_ID,
5005 fw_event->event_data);
5006 break;
5007 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5008 _scsih_sas_broadcast_primative_event(ioc, fw_event->VF_ID,
5009 fw_event->event_data);
5010 break;
5011 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5012 _scsih_sas_enclosure_dev_status_change_event(ioc,
5013 fw_event->VF_ID, fw_event->event_data);
5014 break;
5015 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5016 _scsih_sas_ir_config_change_event(ioc, fw_event->VF_ID,
5017 fw_event->event_data);
5018 break;
5019 case MPI2_EVENT_IR_VOLUME:
5020 _scsih_sas_ir_volume_event(ioc, fw_event->VF_ID,
5021 fw_event->event_data);
5022 break;
5023 case MPI2_EVENT_IR_PHYSICAL_DISK:
5024 _scsih_sas_ir_physical_disk_event(ioc, fw_event->VF_ID,
5025 fw_event->event_data);
5026 break;
5027 case MPI2_EVENT_IR_OPERATION_STATUS:
5028 _scsih_sas_ir_operation_status_event(ioc, fw_event->VF_ID,
5029 fw_event->event_data);
5030 break;
5031 case MPI2_EVENT_TASK_SET_FULL:
5032 _scsih_task_set_full(ioc, fw_event->VF_ID,
5033 fw_event->event_data);
5034 break;
5035 }
5036 _scsih_fw_event_free(ioc, fw_event);
5037}
5038
5039/**
5040 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
5041 * @ioc: per adapter object
5042 * @VF_ID: virtual function id
5043 * @reply: reply message frame(lower 32bit addr)
5044 * Context: interrupt.
5045 *
5046 * This function merely adds a new work task into ioc->firmware_event_thread.
5047 * The tasks are worked from _firmware_event_work in user context.
5048 *
5049 * Return nothing.
5050 */
5051void
5052mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply)
5053{
5054 struct fw_event_work *fw_event;
5055 Mpi2EventNotificationReply_t *mpi_reply;
5056 unsigned long flags;
5057 u16 event;
5058
5059 /* events turned off due to host reset or driver unloading */
5060 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5061 if (ioc->fw_events_off || ioc->remove_host) {
5062 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5063 return;
5064 }
5065 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5066
5067 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
5068 event = le16_to_cpu(mpi_reply->Event);
5069
5070 switch (event) {
5071 /* handle these */
5072 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
5073 {
5074 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
5075 (Mpi2EventDataSasBroadcastPrimitive_t *)
5076 mpi_reply->EventData;
5077
5078 if (baen_data->Primitive !=
5079 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
5080 ioc->broadcast_aen_busy)
5081 return;
5082 ioc->broadcast_aen_busy = 1;
5083 break;
5084 }
5085
5086 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
5087 _scsih_check_topo_delete_events(ioc,
5088 (Mpi2EventDataSasTopologyChangeList_t *)
5089 mpi_reply->EventData);
5090 break;
5091
5092 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
5093 case MPI2_EVENT_IR_OPERATION_STATUS:
5094 case MPI2_EVENT_SAS_DISCOVERY:
5095 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
5096 case MPI2_EVENT_IR_VOLUME:
5097 case MPI2_EVENT_IR_PHYSICAL_DISK:
5098 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
5099 case MPI2_EVENT_TASK_SET_FULL:
5100 break;
5101
5102 default: /* ignore the rest */
5103 return;
5104 }
5105
5106 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
5107 if (!fw_event) {
5108 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5109 ioc->name, __FILE__, __LINE__, __func__);
5110 return;
5111 }
5112 fw_event->event_data =
5113 kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
5114 if (!fw_event->event_data) {
5115 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5116 ioc->name, __FILE__, __LINE__, __func__);
5117 kfree(fw_event);
5118 return;
5119 }
5120
5121 memcpy(fw_event->event_data, mpi_reply->EventData,
5122 mpi_reply->EventDataLength*4);
5123 fw_event->ioc = ioc;
5124 fw_event->VF_ID = VF_ID;
5125 fw_event->event = event;
5126 _scsih_fw_event_add(ioc, fw_event);
5127}
5128
5129/* shost template */
5130static struct scsi_host_template scsih_driver_template = {
5131 .module = THIS_MODULE,
5132 .name = "Fusion MPT SAS Host",
5133 .proc_name = MPT2SAS_DRIVER_NAME,
5134 .queuecommand = scsih_qcmd,
5135 .target_alloc = scsih_target_alloc,
5136 .slave_alloc = scsih_slave_alloc,
5137 .slave_configure = scsih_slave_configure,
5138 .target_destroy = scsih_target_destroy,
5139 .slave_destroy = scsih_slave_destroy,
5140 .change_queue_depth = scsih_change_queue_depth,
5141 .change_queue_type = scsih_change_queue_type,
5142 .eh_abort_handler = scsih_abort,
5143 .eh_device_reset_handler = scsih_dev_reset,
5144 .eh_host_reset_handler = scsih_host_reset,
5145 .bios_param = scsih_bios_param,
5146 .can_queue = 1,
5147 .this_id = -1,
5148 .sg_tablesize = MPT2SAS_SG_DEPTH,
5149 .max_sectors = 8192,
5150 .cmd_per_lun = 7,
5151 .use_clustering = ENABLE_CLUSTERING,
5152 .shost_attrs = mpt2sas_host_attrs,
5153 .sdev_attrs = mpt2sas_dev_attrs,
5154};
5155
5156/**
5157 * _scsih_expander_node_remove - removing expander device from list.
5158 * @ioc: per adapter object
5159 * @sas_expander: the sas_device object
5160 * Context: Calling function should acquire ioc->sas_node_lock.
5161 *
5162 * Removing object and freeing associated memory from the
5163 * ioc->sas_expander_list.
5164 *
5165 * Return nothing.
5166 */
5167static void
5168_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
5169 struct _sas_node *sas_expander)
5170{
5171 struct _sas_port *mpt2sas_port;
5172 struct _sas_device *sas_device;
5173 struct _sas_node *expander_sibling;
5174 unsigned long flags;
5175
5176 if (!sas_expander)
5177 return;
5178
5179 /* remove sibling ports attached to this expander */
5180 retry_device_search:
5181 list_for_each_entry(mpt2sas_port,
5182 &sas_expander->sas_port_list, port_list) {
5183 if (mpt2sas_port->remote_identify.device_type ==
5184 SAS_END_DEVICE) {
5185 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5186 sas_device =
5187 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5188 mpt2sas_port->remote_identify.sas_address);
5189 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5190 if (!sas_device)
5191 continue;
5192 _scsih_remove_device(ioc, sas_device->handle);
5193 goto retry_device_search;
5194 }
5195 }
5196
5197 retry_expander_search:
5198 list_for_each_entry(mpt2sas_port,
5199 &sas_expander->sas_port_list, port_list) {
5200
5201 if (mpt2sas_port->remote_identify.device_type ==
5202 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
5203 mpt2sas_port->remote_identify.device_type ==
5204 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
5205
5206 spin_lock_irqsave(&ioc->sas_node_lock, flags);
5207 expander_sibling =
5208 mpt2sas_scsih_expander_find_by_sas_address(
5209 ioc, mpt2sas_port->remote_identify.sas_address);
5210 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
5211 if (!expander_sibling)
5212 continue;
5213 _scsih_expander_remove(ioc, expander_sibling->handle);
5214 goto retry_expander_search;
5215 }
5216 }
5217
5218 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
5219 sas_expander->parent_handle);
5220
5221 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
5222 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
5223 sas_expander->handle, (unsigned long long)
5224 sas_expander->sas_address);
5225
5226 list_del(&sas_expander->list);
5227 kfree(sas_expander->phy);
5228 kfree(sas_expander);
5229}
5230
5231/**
5232 * scsih_remove - detach and remove add host
5233 * @pdev: PCI device struct
5234 *
5235 * Return nothing.
5236 */
5237static void __devexit
5238scsih_remove(struct pci_dev *pdev)
5239{
5240 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5241 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5242 struct _sas_port *mpt2sas_port;
5243 struct _sas_device *sas_device;
5244 struct _sas_node *expander_sibling;
5245 struct workqueue_struct *wq;
5246 unsigned long flags;
5247
5248 ioc->remove_host = 1;
5249 _scsih_fw_event_off(ioc);
5250
5251 spin_lock_irqsave(&ioc->fw_event_lock, flags);
5252 wq = ioc->firmware_event_thread;
5253 ioc->firmware_event_thread = NULL;
5254 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
5255 if (wq)
5256 destroy_workqueue(wq);
5257
5258 /* free ports attached to the sas_host */
5259 retry_again:
5260 list_for_each_entry(mpt2sas_port,
5261 &ioc->sas_hba.sas_port_list, port_list) {
5262 if (mpt2sas_port->remote_identify.device_type ==
5263 SAS_END_DEVICE) {
5264 sas_device =
5265 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5266 mpt2sas_port->remote_identify.sas_address);
5267 if (sas_device) {
5268 _scsih_remove_device(ioc, sas_device->handle);
5269 goto retry_again;
5270 }
5271 } else {
5272 expander_sibling =
5273 mpt2sas_scsih_expander_find_by_sas_address(ioc,
5274 mpt2sas_port->remote_identify.sas_address);
5275 if (expander_sibling) {
5276 _scsih_expander_remove(ioc,
5277 expander_sibling->handle);
5278 goto retry_again;
5279 }
5280 }
5281 }
5282
5283 /* free phys attached to the sas_host */
5284 if (ioc->sas_hba.num_phys) {
5285 kfree(ioc->sas_hba.phy);
5286 ioc->sas_hba.phy = NULL;
5287 ioc->sas_hba.num_phys = 0;
5288 }
5289
5290 sas_remove_host(shost);
5291 mpt2sas_base_detach(ioc);
5292 list_del(&ioc->list);
5293 scsi_remove_host(shost);
5294 scsi_host_put(shost);
5295}
5296
5297/**
5298 * _scsih_probe_boot_devices - reports 1st device
5299 * @ioc: per adapter object
5300 *
5301 * If specified in bios page 2, this routine reports the 1st
5302 * device scsi-ml or sas transport for persistent boot device
5303 * purposes. Please refer to function _scsih_determine_boot_device()
5304 */
5305static void
5306_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
5307{
5308 u8 is_raid;
5309 void *device;
5310 struct _sas_device *sas_device;
5311 struct _raid_device *raid_device;
5312 u16 handle, parent_handle;
5313 u64 sas_address;
5314 unsigned long flags;
5315 int rc;
5316
5317 device = NULL;
5318 if (ioc->req_boot_device.device) {
5319 device = ioc->req_boot_device.device;
5320 is_raid = ioc->req_boot_device.is_raid;
5321 } else if (ioc->req_alt_boot_device.device) {
5322 device = ioc->req_alt_boot_device.device;
5323 is_raid = ioc->req_alt_boot_device.is_raid;
5324 } else if (ioc->current_boot_device.device) {
5325 device = ioc->current_boot_device.device;
5326 is_raid = ioc->current_boot_device.is_raid;
5327 }
5328
5329 if (!device)
5330 return;
5331
5332 if (is_raid) {
5333 raid_device = device;
5334 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5335 raid_device->id, 0);
5336 if (rc)
5337 _scsih_raid_device_remove(ioc, raid_device);
5338 } else {
5339 sas_device = device;
5340 handle = sas_device->handle;
5341 parent_handle = sas_device->parent_handle;
5342 sas_address = sas_device->sas_address;
5343 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5344 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5345 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5346 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
5347 sas_device->parent_handle)) {
5348 _scsih_sas_device_remove(ioc, sas_device);
5349 } else if (!sas_device->starget) {
5350 mpt2sas_transport_port_remove(ioc, sas_address,
5351 parent_handle);
5352 _scsih_sas_device_remove(ioc, sas_device);
5353 }
5354 }
5355}
5356
5357/**
5358 * _scsih_probe_raid - reporting raid volumes to scsi-ml
5359 * @ioc: per adapter object
5360 *
5361 * Called during initial loading of the driver.
5362 */
5363static void
5364_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
5365{
5366 struct _raid_device *raid_device, *raid_next;
5367 int rc;
5368
5369 list_for_each_entry_safe(raid_device, raid_next,
5370 &ioc->raid_device_list, list) {
5371 if (raid_device->starget)
5372 continue;
5373 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5374 raid_device->id, 0);
5375 if (rc)
5376 _scsih_raid_device_remove(ioc, raid_device);
5377 }
5378}
5379
5380/**
5381 * _scsih_probe_sas - reporting raid volumes to sas transport
5382 * @ioc: per adapter object
5383 *
5384 * Called during initial loading of the driver.
5385 */
5386static void
5387_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
5388{
5389 struct _sas_device *sas_device, *next;
5390 unsigned long flags;
5391 u16 handle, parent_handle;
5392 u64 sas_address;
5393
5394 /* SAS Device List */
5395 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
5396 list) {
5397 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5398 list_move_tail(&sas_device->list, &ioc->sas_device_list);
5399 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5400
5401 handle = sas_device->handle;
5402 parent_handle = sas_device->parent_handle;
5403 sas_address = sas_device->sas_address;
5404 if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
5405 _scsih_sas_device_remove(ioc, sas_device);
5406 } else if (!sas_device->starget) {
5407 mpt2sas_transport_port_remove(ioc, sas_address,
5408 parent_handle);
5409 _scsih_sas_device_remove(ioc, sas_device);
5410 }
5411 }
5412}
5413
5414/**
5415 * _scsih_probe_devices - probing for devices
5416 * @ioc: per adapter object
5417 *
5418 * Called during initial loading of the driver.
5419 */
5420static void
5421_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
5422{
5423 u16 volume_mapping_flags =
5424 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
5425 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
5426
5427 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
5428 return; /* return when IOC doesn't support initiator mode */
5429
5430 _scsih_probe_boot_devices(ioc);
5431
5432 if (ioc->ir_firmware) {
5433 if ((volume_mapping_flags &
5434 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
5435 _scsih_probe_sas(ioc);
5436 _scsih_probe_raid(ioc);
5437 } else {
5438 _scsih_probe_raid(ioc);
5439 _scsih_probe_sas(ioc);
5440 }
5441 } else
5442 _scsih_probe_sas(ioc);
5443}
5444
5445/**
5446 * scsih_probe - attach and add scsi host
5447 * @pdev: PCI device struct
5448 * @id: pci device id
5449 *
5450 * Returns 0 success, anything else error.
5451 */
5452static int
5453scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
5454{
5455 struct MPT2SAS_ADAPTER *ioc;
5456 struct Scsi_Host *shost;
5457
5458 shost = scsi_host_alloc(&scsih_driver_template,
5459 sizeof(struct MPT2SAS_ADAPTER));
5460 if (!shost)
5461 return -ENODEV;
5462
5463 /* init local params */
5464 ioc = shost_priv(shost);
5465 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
5466 INIT_LIST_HEAD(&ioc->list);
5467 list_add_tail(&ioc->list, &ioc_list);
5468 ioc->shost = shost;
5469 ioc->id = mpt_ids++;
5470 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
5471 ioc->pdev = pdev;
5472 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
5473 ioc->tm_cb_idx = tm_cb_idx;
5474 ioc->ctl_cb_idx = ctl_cb_idx;
5475 ioc->base_cb_idx = base_cb_idx;
5476 ioc->transport_cb_idx = transport_cb_idx;
5477 ioc->config_cb_idx = config_cb_idx;
5478 ioc->logging_level = logging_level;
5479 /* misc semaphores and spin locks */
5480 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
5481 spin_lock_init(&ioc->scsi_lookup_lock);
5482 spin_lock_init(&ioc->sas_device_lock);
5483 spin_lock_init(&ioc->sas_node_lock);
5484 spin_lock_init(&ioc->fw_event_lock);
5485 spin_lock_init(&ioc->raid_device_lock);
5486
5487 INIT_LIST_HEAD(&ioc->sas_device_list);
5488 INIT_LIST_HEAD(&ioc->sas_device_init_list);
5489 INIT_LIST_HEAD(&ioc->sas_expander_list);
5490 INIT_LIST_HEAD(&ioc->fw_event_list);
5491 INIT_LIST_HEAD(&ioc->raid_device_list);
5492 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
5493
5494 /* init shost parameters */
5495 shost->max_cmd_len = 16;
5496 shost->max_lun = max_lun;
5497 shost->transportt = mpt2sas_transport_template;
5498 shost->unique_id = ioc->id;
5499
5500 if ((scsi_add_host(shost, &pdev->dev))) {
5501 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5502 ioc->name, __FILE__, __LINE__, __func__);
5503 list_del(&ioc->list);
5504 goto out_add_shost_fail;
5505 }
5506
5507 /* event thread */
5508 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
5509 "fw_event%d", ioc->id);
5510 ioc->firmware_event_thread = create_singlethread_workqueue(
5511 ioc->firmware_event_name);
5512 if (!ioc->firmware_event_thread) {
5513 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5514 ioc->name, __FILE__, __LINE__, __func__);
5515 goto out_thread_fail;
5516 }
5517
5518 ioc->wait_for_port_enable_to_complete = 1;
5519 if ((mpt2sas_base_attach(ioc))) {
5520 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5521 ioc->name, __FILE__, __LINE__, __func__);
5522 goto out_attach_fail;
5523 }
5524
5525 ioc->wait_for_port_enable_to_complete = 0;
5526 _scsih_probe_devices(ioc);
5527 return 0;
5528
5529 out_attach_fail:
5530 destroy_workqueue(ioc->firmware_event_thread);
5531 out_thread_fail:
5532 list_del(&ioc->list);
5533 scsi_remove_host(shost);
5534 out_add_shost_fail:
5535 return -ENODEV;
5536}
5537
5538#ifdef CONFIG_PM
5539/**
5540 * scsih_suspend - power management suspend main entry point
5541 * @pdev: PCI device struct
5542 * @state: PM state change to (usually PCI_D3)
5543 *
5544 * Returns 0 success, anything else error.
5545 */
5546static int
5547scsih_suspend(struct pci_dev *pdev, pm_message_t state)
5548{
5549 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5550 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5551 u32 device_state;
5552
5553 flush_scheduled_work();
5554 scsi_block_requests(shost);
5555 device_state = pci_choose_state(pdev, state);
5556 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
5557 "operating state [D%d]\n", ioc->name, pdev,
5558 pci_name(pdev), device_state);
5559
5560 mpt2sas_base_free_resources(ioc);
5561 pci_save_state(pdev);
5562 pci_disable_device(pdev);
5563 pci_set_power_state(pdev, device_state);
5564 return 0;
5565}
5566
5567/**
5568 * scsih_resume - power management resume main entry point
5569 * @pdev: PCI device struct
5570 *
5571 * Returns 0 success, anything else error.
5572 */
5573static int
5574scsih_resume(struct pci_dev *pdev)
5575{
5576 struct Scsi_Host *shost = pci_get_drvdata(pdev);
5577 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
5578 u32 device_state = pdev->current_state;
5579 int r;
5580
5581 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
5582 "operating state [D%d]\n", ioc->name, pdev,
5583 pci_name(pdev), device_state);
5584
5585 pci_set_power_state(pdev, PCI_D0);
5586 pci_enable_wake(pdev, PCI_D0, 0);
5587 pci_restore_state(pdev);
5588 ioc->pdev = pdev;
5589 r = mpt2sas_base_map_resources(ioc);
5590 if (r)
5591 return r;
5592
5593 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
5594 scsi_unblock_requests(shost);
5595 return 0;
5596}
5597#endif /* CONFIG_PM */
5598
5599
5600static struct pci_driver scsih_driver = {
5601 .name = MPT2SAS_DRIVER_NAME,
5602 .id_table = scsih_pci_table,
5603 .probe = scsih_probe,
5604 .remove = __devexit_p(scsih_remove),
5605#ifdef CONFIG_PM
5606 .suspend = scsih_suspend,
5607 .resume = scsih_resume,
5608#endif
5609};
5610
5611
5612/**
5613 * scsih_init - main entry point for this driver.
5614 *
5615 * Returns 0 success, anything else error.
5616 */
5617static int __init
5618scsih_init(void)
5619{
5620 int error;
5621
5622 mpt_ids = 0;
5623 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
5624 MPT2SAS_DRIVER_VERSION);
5625
5626 mpt2sas_transport_template =
5627 sas_attach_transport(&mpt2sas_transport_functions);
5628 if (!mpt2sas_transport_template)
5629 return -ENODEV;
5630
5631 mpt2sas_base_initialize_callback_handler();
5632
5633 /* queuecommand callback hander */
5634 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(scsih_io_done);
5635
5636 /* task managment callback handler */
5637 tm_cb_idx = mpt2sas_base_register_callback_handler(scsih_tm_done);
5638
5639 /* base internal commands callback handler */
5640 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
5641
5642 /* transport internal commands callback handler */
5643 transport_cb_idx = mpt2sas_base_register_callback_handler(
5644 mpt2sas_transport_done);
5645
5646 /* configuration page API internal commands callback handler */
5647 config_cb_idx = mpt2sas_base_register_callback_handler(
5648 mpt2sas_config_done);
5649
5650 /* ctl module callback handler */
5651 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
5652
5653 mpt2sas_ctl_init();
5654
5655 error = pci_register_driver(&scsih_driver);
5656 if (error)
5657 sas_release_transport(mpt2sas_transport_template);
5658
5659 return error;
5660}
5661
5662/**
5663 * scsih_exit - exit point for this driver (when it is a module).
5664 *
5665 * Returns 0 success, anything else error.
5666 */
5667static void __exit
5668scsih_exit(void)
5669{
5670 printk(KERN_INFO "mpt2sas version %s unloading\n",
5671 MPT2SAS_DRIVER_VERSION);
5672
5673 pci_unregister_driver(&scsih_driver);
5674
5675 sas_release_transport(mpt2sas_transport_template);
5676 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
5677 mpt2sas_base_release_callback_handler(tm_cb_idx);
5678 mpt2sas_base_release_callback_handler(base_cb_idx);
5679 mpt2sas_base_release_callback_handler(transport_cb_idx);
5680 mpt2sas_base_release_callback_handler(config_cb_idx);
5681 mpt2sas_base_release_callback_handler(ctl_cb_idx);
5682
5683 mpt2sas_ctl_exit();
5684}
5685
5686module_init(scsih_init);
5687module_exit(scsih_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-22 15:15:41 -0400