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Eric Moore635374e2009-03-09 01:21:12 -06001/*
2 * Scsi Host Layer for MPT (Message Passing Technology) based controllers
3 *
4 * This code is based on drivers/scsi/mpt2sas/mpt2_scsih.c
Kashyap, Desai31b7f2e2010-03-17 16:28:04 +05305 * Copyright (C) 2007-2010 LSI Corporation
Eric Moore635374e2009-03-09 01:21:12 -06006 * (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>
Kashyap, Desaief7c80c2010-04-05 14:20:07 +053055#include <linux/aer.h>
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +053056#include <linux/raid_class.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090057#include <linux/slab.h>
Eric Moore635374e2009-03-09 01:21:12 -060058
59#include "mpt2sas_base.h"
60
61MODULE_AUTHOR(MPT2SAS_AUTHOR);
62MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION);
63MODULE_LICENSE("GPL");
64MODULE_VERSION(MPT2SAS_DRIVER_VERSION);
65
66#define RAID_CHANNEL 1
67
68/* forward proto's */
69static void _scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
70 struct _sas_node *sas_expander);
71static void _firmware_event_work(struct work_struct *work);
72
Kashyap, Desaif3eedd62010-06-17 13:46:13 +053073static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid);
74
Eric Moore635374e2009-03-09 01:21:12 -060075/* global parameters */
Eric Mooreba33fad2009-03-15 21:37:18 -060076LIST_HEAD(mpt2sas_ioc_list);
Eric Moore635374e2009-03-09 01:21:12 -060077
78/* local parameters */
Eric Moore635374e2009-03-09 01:21:12 -060079static u8 scsi_io_cb_idx = -1;
80static u8 tm_cb_idx = -1;
81static u8 ctl_cb_idx = -1;
82static u8 base_cb_idx = -1;
83static u8 transport_cb_idx = -1;
Kashyap, Desai744090d2009-10-05 15:56:56 +053084static u8 scsih_cb_idx = -1;
Eric Moore635374e2009-03-09 01:21:12 -060085static u8 config_cb_idx = -1;
86static int mpt_ids;
87
Kashyap, Desai77e63ed2009-09-14 11:04:23 +053088static u8 tm_tr_cb_idx = -1 ;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +053089static u8 tm_tr_volume_cb_idx = -1 ;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +053090static u8 tm_sas_control_cb_idx = -1;
91
Eric Moore635374e2009-03-09 01:21:12 -060092/* command line options */
Eric Mooreba33fad2009-03-15 21:37:18 -060093static u32 logging_level;
Eric Moore635374e2009-03-09 01:21:12 -060094MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
95 "(default=0)");
96
97/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
98#define MPT2SAS_MAX_LUN (16895)
99static int max_lun = MPT2SAS_MAX_LUN;
100module_param(max_lun, int, 0);
101MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
102
103/**
104 * struct sense_info - common structure for obtaining sense keys
105 * @skey: sense key
106 * @asc: additional sense code
107 * @ascq: additional sense code qualifier
108 */
109struct sense_info {
110 u8 skey;
111 u8 asc;
112 u8 ascq;
113};
114
115
Kashyap, Desaif1c35e62010-03-09 16:31:43 +0530116#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF)
117
Eric Moore635374e2009-03-09 01:21:12 -0600118/**
119 * struct fw_event_work - firmware event struct
120 * @list: link list framework
121 * @work: work object (ioc->fault_reset_work_q)
Kashyap, Desaif1c35e62010-03-09 16:31:43 +0530122 * @cancel_pending_work: flag set during reset handling
Eric Moore635374e2009-03-09 01:21:12 -0600123 * @ioc: per adapter object
124 * @VF_ID: virtual function id
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530125 * @VP_ID: virtual port id
Eric Moore635374e2009-03-09 01:21:12 -0600126 * @ignore: flag meaning this event has been marked to ignore
127 * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
128 * @event_data: reply event data payload follows
129 *
130 * This object stored on ioc->fw_event_list.
131 */
132struct fw_event_work {
133 struct list_head list;
Kashyap, Desaif1c35e62010-03-09 16:31:43 +0530134 u8 cancel_pending_work;
135 struct delayed_work delayed_work;
Eric Moore635374e2009-03-09 01:21:12 -0600136 struct MPT2SAS_ADAPTER *ioc;
137 u8 VF_ID;
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530138 u8 VP_ID;
Eric Moore635374e2009-03-09 01:21:12 -0600139 u8 ignore;
140 u16 event;
141 void *event_data;
142};
143
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +0530144/* raid transport support */
145static struct raid_template *mpt2sas_raid_template;
146
Eric Moore635374e2009-03-09 01:21:12 -0600147/**
148 * struct _scsi_io_transfer - scsi io transfer
149 * @handle: sas device handle (assigned by firmware)
150 * @is_raid: flag set for hidden raid components
151 * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
152 * @data_length: data transfer length
153 * @data_dma: dma pointer to data
154 * @sense: sense data
155 * @lun: lun number
156 * @cdb_length: cdb length
157 * @cdb: cdb contents
Eric Moore635374e2009-03-09 01:21:12 -0600158 * @timeout: timeout for this command
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530159 * @VF_ID: virtual function id
160 * @VP_ID: virtual port id
161 * @valid_reply: flag set for reply message
Eric Moore635374e2009-03-09 01:21:12 -0600162 * @sense_length: sense length
163 * @ioc_status: ioc status
164 * @scsi_state: scsi state
165 * @scsi_status: scsi staus
166 * @log_info: log information
167 * @transfer_length: data length transfer when there is a reply message
168 *
169 * Used for sending internal scsi commands to devices within this module.
170 * Refer to _scsi_send_scsi_io().
171 */
172struct _scsi_io_transfer {
173 u16 handle;
174 u8 is_raid;
175 enum dma_data_direction dir;
176 u32 data_length;
177 dma_addr_t data_dma;
178 u8 sense[SCSI_SENSE_BUFFERSIZE];
179 u32 lun;
180 u8 cdb_length;
181 u8 cdb[32];
182 u8 timeout;
Kashyap, Desai7b936b02009-09-25 11:44:41 +0530183 u8 VF_ID;
184 u8 VP_ID;
Eric Moore635374e2009-03-09 01:21:12 -0600185 u8 valid_reply;
186 /* the following bits are only valid when 'valid_reply = 1' */
187 u32 sense_length;
188 u16 ioc_status;
189 u8 scsi_state;
190 u8 scsi_status;
191 u32 log_info;
192 u32 transfer_length;
193};
194
195/*
196 * The pci device ids are defined in mpi/mpi2_cnfg.h.
197 */
198static struct pci_device_id scsih_pci_table[] = {
199 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
200 PCI_ANY_ID, PCI_ANY_ID },
201 /* Falcon ~ 2008*/
202 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
203 PCI_ANY_ID, PCI_ANY_ID },
204 /* Liberator ~ 2108 */
205 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
206 PCI_ANY_ID, PCI_ANY_ID },
207 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
208 PCI_ANY_ID, PCI_ANY_ID },
209 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
210 PCI_ANY_ID, PCI_ANY_ID },
Kashyap, Desaidb271362009-09-23 17:24:27 +0530211 /* Meteor ~ 2116 */
Eric Moore635374e2009-03-09 01:21:12 -0600212 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
213 PCI_ANY_ID, PCI_ANY_ID },
214 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
215 PCI_ANY_ID, PCI_ANY_ID },
Kashyap, Desaidb271362009-09-23 17:24:27 +0530216 /* Thunderbolt ~ 2208 */
217 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
218 PCI_ANY_ID, PCI_ANY_ID },
219 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
220 PCI_ANY_ID, PCI_ANY_ID },
221 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
222 PCI_ANY_ID, PCI_ANY_ID },
223 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
224 PCI_ANY_ID, PCI_ANY_ID },
225 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
226 PCI_ANY_ID, PCI_ANY_ID },
227 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
228 PCI_ANY_ID, PCI_ANY_ID },
Kashyap, Desai203d65b2010-06-17 13:37:59 +0530229 /* Mustang ~ 2308 */
230 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
Kashyap, Desaidb271362009-09-23 17:24:27 +0530231 PCI_ANY_ID, PCI_ANY_ID },
Kashyap, Desai203d65b2010-06-17 13:37:59 +0530232 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
233 PCI_ANY_ID, PCI_ANY_ID },
234 { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
Kashyap, Desaidb271362009-09-23 17:24:27 +0530235 PCI_ANY_ID, PCI_ANY_ID },
Eric Moore635374e2009-03-09 01:21:12 -0600236 {0} /* Terminating entry */
237};
238MODULE_DEVICE_TABLE(pci, scsih_pci_table);
239
240/**
Eric Moored5d135b2009-05-18 13:02:08 -0600241 * _scsih_set_debug_level - global setting of ioc->logging_level.
Eric Moore635374e2009-03-09 01:21:12 -0600242 *
243 * Note: The logging levels are defined in mpt2sas_debug.h.
244 */
245static int
Eric Moored5d135b2009-05-18 13:02:08 -0600246_scsih_set_debug_level(const char *val, struct kernel_param *kp)
Eric Moore635374e2009-03-09 01:21:12 -0600247{
248 int ret = param_set_int(val, kp);
249 struct MPT2SAS_ADAPTER *ioc;
250
251 if (ret)
252 return ret;
253
254 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
Eric Mooreba33fad2009-03-15 21:37:18 -0600255 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
Eric Moore635374e2009-03-09 01:21:12 -0600256 ioc->logging_level = logging_level;
257 return 0;
258}
Eric Moored5d135b2009-05-18 13:02:08 -0600259module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
Eric Moore635374e2009-03-09 01:21:12 -0600260 &logging_level, 0644);
261
262/**
263 * _scsih_srch_boot_sas_address - search based on sas_address
264 * @sas_address: sas address
265 * @boot_device: boot device object from bios page 2
266 *
267 * Returns 1 when there's a match, 0 means no match.
268 */
269static inline int
270_scsih_srch_boot_sas_address(u64 sas_address,
271 Mpi2BootDeviceSasWwid_t *boot_device)
272{
273 return (sas_address == le64_to_cpu(boot_device->SASAddress)) ? 1 : 0;
274}
275
276/**
277 * _scsih_srch_boot_device_name - search based on device name
278 * @device_name: device name specified in INDENTIFY fram
279 * @boot_device: boot device object from bios page 2
280 *
281 * Returns 1 when there's a match, 0 means no match.
282 */
283static inline int
284_scsih_srch_boot_device_name(u64 device_name,
285 Mpi2BootDeviceDeviceName_t *boot_device)
286{
287 return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
288}
289
290/**
291 * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
292 * @enclosure_logical_id: enclosure logical id
293 * @slot_number: slot number
294 * @boot_device: boot device object from bios page 2
295 *
296 * Returns 1 when there's a match, 0 means no match.
297 */
298static inline int
299_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
300 Mpi2BootDeviceEnclosureSlot_t *boot_device)
301{
302 return (enclosure_logical_id == le64_to_cpu(boot_device->
303 EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
304 SlotNumber)) ? 1 : 0;
305}
306
307/**
308 * _scsih_is_boot_device - search for matching boot device.
309 * @sas_address: sas address
310 * @device_name: device name specified in INDENTIFY fram
311 * @enclosure_logical_id: enclosure logical id
312 * @slot_number: slot number
313 * @form: specifies boot device form
314 * @boot_device: boot device object from bios page 2
315 *
316 * Returns 1 when there's a match, 0 means no match.
317 */
318static int
319_scsih_is_boot_device(u64 sas_address, u64 device_name,
320 u64 enclosure_logical_id, u16 slot, u8 form,
321 Mpi2BiosPage2BootDevice_t *boot_device)
322{
323 int rc = 0;
324
325 switch (form) {
326 case MPI2_BIOSPAGE2_FORM_SAS_WWID:
327 if (!sas_address)
328 break;
329 rc = _scsih_srch_boot_sas_address(
330 sas_address, &boot_device->SasWwid);
331 break;
332 case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
333 if (!enclosure_logical_id)
334 break;
335 rc = _scsih_srch_boot_encl_slot(
336 enclosure_logical_id,
337 slot, &boot_device->EnclosureSlot);
338 break;
339 case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
340 if (!device_name)
341 break;
342 rc = _scsih_srch_boot_device_name(
343 device_name, &boot_device->DeviceName);
344 break;
345 case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
346 break;
347 }
348
349 return rc;
350}
351
352/**
Kashyap, Desaic5e039b2009-09-23 17:21:29 +0530353 * _scsih_get_sas_address - set the sas_address for given device handle
354 * @handle: device handle
355 * @sas_address: sas address
356 *
357 * Returns 0 success, non-zero when failure
358 */
359static int
360_scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
361 u64 *sas_address)
362{
363 Mpi2SasDevicePage0_t sas_device_pg0;
364 Mpi2ConfigReply_t mpi_reply;
365 u32 ioc_status;
366
367 if (handle <= ioc->sas_hba.num_phys) {
368 *sas_address = ioc->sas_hba.sas_address;
369 return 0;
370 } else
371 *sas_address = 0;
372
373 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
374 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
375 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
376 ioc->name, __FILE__, __LINE__, __func__);
377 return -ENXIO;
378 }
379
380 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
381 MPI2_IOCSTATUS_MASK;
382 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
383 printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
384 "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
385 __FILE__, __LINE__, __func__);
386 return -EIO;
387 }
388
389 *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
390 return 0;
391}
392
393/**
Eric Moore635374e2009-03-09 01:21:12 -0600394 * _scsih_determine_boot_device - determine boot device.
395 * @ioc: per adapter object
396 * @device: either sas_device or raid_device object
397 * @is_raid: [flag] 1 = raid object, 0 = sas object
398 *
399 * Determines whether this device should be first reported device to
400 * to scsi-ml or sas transport, this purpose is for persistant boot device.
401 * There are primary, alternate, and current entries in bios page 2. The order
402 * priority is primary, alternate, then current. This routine saves
403 * the corresponding device object and is_raid flag in the ioc object.
404 * The saved data to be used later in _scsih_probe_boot_devices().
405 */
406static void
407_scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
408 void *device, u8 is_raid)
409{
410 struct _sas_device *sas_device;
411 struct _raid_device *raid_device;
412 u64 sas_address;
413 u64 device_name;
414 u64 enclosure_logical_id;
415 u16 slot;
416
417 /* only process this function when driver loads */
418 if (!ioc->wait_for_port_enable_to_complete)
419 return;
420
421 if (!is_raid) {
422 sas_device = device;
423 sas_address = sas_device->sas_address;
424 device_name = sas_device->device_name;
425 enclosure_logical_id = sas_device->enclosure_logical_id;
426 slot = sas_device->slot;
427 } else {
428 raid_device = device;
429 sas_address = raid_device->wwid;
430 device_name = 0;
431 enclosure_logical_id = 0;
432 slot = 0;
433 }
434
435 if (!ioc->req_boot_device.device) {
436 if (_scsih_is_boot_device(sas_address, device_name,
437 enclosure_logical_id, slot,
438 (ioc->bios_pg2.ReqBootDeviceForm &
439 MPI2_BIOSPAGE2_FORM_MASK),
440 &ioc->bios_pg2.RequestedBootDevice)) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +0530441 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
Eric Moore635374e2009-03-09 01:21:12 -0600442 "%s: req_boot_device(0x%016llx)\n",
443 ioc->name, __func__,
444 (unsigned long long)sas_address));
445 ioc->req_boot_device.device = device;
446 ioc->req_boot_device.is_raid = is_raid;
447 }
448 }
449
450 if (!ioc->req_alt_boot_device.device) {
451 if (_scsih_is_boot_device(sas_address, device_name,
452 enclosure_logical_id, slot,
453 (ioc->bios_pg2.ReqAltBootDeviceForm &
454 MPI2_BIOSPAGE2_FORM_MASK),
455 &ioc->bios_pg2.RequestedAltBootDevice)) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +0530456 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
Eric Moore635374e2009-03-09 01:21:12 -0600457 "%s: req_alt_boot_device(0x%016llx)\n",
458 ioc->name, __func__,
459 (unsigned long long)sas_address));
460 ioc->req_alt_boot_device.device = device;
461 ioc->req_alt_boot_device.is_raid = is_raid;
462 }
463 }
464
465 if (!ioc->current_boot_device.device) {
466 if (_scsih_is_boot_device(sas_address, device_name,
467 enclosure_logical_id, slot,
468 (ioc->bios_pg2.CurrentBootDeviceForm &
469 MPI2_BIOSPAGE2_FORM_MASK),
470 &ioc->bios_pg2.CurrentBootDevice)) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +0530471 dinitprintk(ioc, printk(MPT2SAS_INFO_FMT
Eric Moore635374e2009-03-09 01:21:12 -0600472 "%s: current_boot_device(0x%016llx)\n",
473 ioc->name, __func__,
474 (unsigned long long)sas_address));
475 ioc->current_boot_device.device = device;
476 ioc->current_boot_device.is_raid = is_raid;
477 }
478 }
479}
480
481/**
482 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search
483 * @ioc: per adapter object
484 * @sas_address: sas address
485 * Context: Calling function should acquire ioc->sas_device_lock
486 *
487 * This searches for sas_device based on sas_address, then return sas_device
488 * object.
489 */
490struct _sas_device *
491mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
492 u64 sas_address)
493{
Kashyap, Desaicd9843f2010-03-09 16:32:17 +0530494 struct _sas_device *sas_device;
Eric Moore635374e2009-03-09 01:21:12 -0600495
Kashyap, Desaicd9843f2010-03-09 16:32:17 +0530496 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
497 if (sas_device->sas_address == sas_address)
498 return sas_device;
Eric Moore635374e2009-03-09 01:21:12 -0600499
Kashyap, Desaicd9843f2010-03-09 16:32:17 +0530500 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
501 if (sas_device->sas_address == sas_address)
502 return sas_device;
503
504 return NULL;
Eric Moore635374e2009-03-09 01:21:12 -0600505}
506
507/**
508 * _scsih_sas_device_find_by_handle - sas device search
509 * @ioc: per adapter object
510 * @handle: sas device handle (assigned by firmware)
511 * Context: Calling function should acquire ioc->sas_device_lock
512 *
513 * This searches for sas_device based on sas_address, then return sas_device
514 * object.
515 */
516static struct _sas_device *
517_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
518{
Kashyap, Desaicd9843f2010-03-09 16:32:17 +0530519 struct _sas_device *sas_device;
Eric Moore635374e2009-03-09 01:21:12 -0600520
Kashyap, Desaicd9843f2010-03-09 16:32:17 +0530521 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
522 if (sas_device->handle == handle)
523 return sas_device;
Eric Moore635374e2009-03-09 01:21:12 -0600524
Kashyap, Desaicd9843f2010-03-09 16:32:17 +0530525 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
526 if (sas_device->handle == handle)
527 return sas_device;
528
529 return NULL;
Eric Moore635374e2009-03-09 01:21:12 -0600530}
531
532/**
533 * _scsih_sas_device_remove - remove sas_device from list.
534 * @ioc: per adapter object
535 * @sas_device: the sas_device object
536 * Context: This function will acquire ioc->sas_device_lock.
537 *
538 * Removing object and freeing associated memory from the ioc->sas_device_list.
539 */
540static void
541_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
542 struct _sas_device *sas_device)
543{
544 unsigned long flags;
545
Kashyap, Desai980ead32010-04-08 17:55:22 +0530546 if (!sas_device)
547 return;
548
Eric Moore635374e2009-03-09 01:21:12 -0600549 spin_lock_irqsave(&ioc->sas_device_lock, flags);
Kashyap, Desai980ead32010-04-08 17:55:22 +0530550 if (mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
551 sas_device->sas_address)) {
552 list_del(&sas_device->list);
553 kfree(sas_device);
554 }
Eric Moore635374e2009-03-09 01:21:12 -0600555 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
556}
557
558/**
559 * _scsih_sas_device_add - insert sas_device to the list.
560 * @ioc: per adapter object
561 * @sas_device: the sas_device object
562 * Context: This function will acquire ioc->sas_device_lock.
563 *
564 * Adding new object to the ioc->sas_device_list.
565 */
566static void
567_scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
568 struct _sas_device *sas_device)
569{
570 unsigned long flags;
Eric Moore635374e2009-03-09 01:21:12 -0600571
Kashyap, Desaieabb08a2010-06-17 13:43:57 +0530572 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
Eric Moore635374e2009-03-09 01:21:12 -0600573 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
574 sas_device->handle, (unsigned long long)sas_device->sas_address));
575
576 spin_lock_irqsave(&ioc->sas_device_lock, flags);
577 list_add_tail(&sas_device->list, &ioc->sas_device_list);
578 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
579
Kashyap, Desaic5e039b2009-09-23 17:21:29 +0530580 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
581 sas_device->sas_address_parent))
Eric Moore635374e2009-03-09 01:21:12 -0600582 _scsih_sas_device_remove(ioc, sas_device);
Eric Moore635374e2009-03-09 01:21:12 -0600583}
584
585/**
586 * _scsih_sas_device_init_add - insert sas_device to the list.
587 * @ioc: per adapter object
588 * @sas_device: the sas_device object
589 * Context: This function will acquire ioc->sas_device_lock.
590 *
591 * Adding new object at driver load time to the ioc->sas_device_init_list.
592 */
593static void
594_scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
595 struct _sas_device *sas_device)
596{
597 unsigned long flags;
598
Kashyap, Desaieabb08a2010-06-17 13:43:57 +0530599 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
Eric Moore635374e2009-03-09 01:21:12 -0600600 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
601 sas_device->handle, (unsigned long long)sas_device->sas_address));
602
603 spin_lock_irqsave(&ioc->sas_device_lock, flags);
604 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
605 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
606 _scsih_determine_boot_device(ioc, sas_device, 0);
607}
608
609/**
Eric Moore635374e2009-03-09 01:21:12 -0600610 * _scsih_raid_device_find_by_id - raid device search
611 * @ioc: per adapter object
612 * @id: sas device target id
613 * @channel: sas device channel
614 * Context: Calling function should acquire ioc->raid_device_lock
615 *
616 * This searches for raid_device based on target id, then return raid_device
617 * object.
618 */
619static struct _raid_device *
620_scsih_raid_device_find_by_id(struct MPT2SAS_ADAPTER *ioc, int id, int channel)
621{
622 struct _raid_device *raid_device, *r;
623
624 r = NULL;
625 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
626 if (raid_device->id == id && raid_device->channel == channel) {
627 r = raid_device;
628 goto out;
629 }
630 }
631
632 out:
633 return r;
634}
635
636/**
637 * _scsih_raid_device_find_by_handle - raid device search
638 * @ioc: per adapter object
639 * @handle: sas device handle (assigned by firmware)
640 * Context: Calling function should acquire ioc->raid_device_lock
641 *
642 * This searches for raid_device based on handle, then return raid_device
643 * object.
644 */
645static struct _raid_device *
646_scsih_raid_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
647{
648 struct _raid_device *raid_device, *r;
649
650 r = NULL;
651 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
652 if (raid_device->handle != handle)
653 continue;
654 r = raid_device;
655 goto out;
656 }
657
658 out:
659 return r;
660}
661
662/**
663 * _scsih_raid_device_find_by_wwid - raid device search
664 * @ioc: per adapter object
665 * @handle: sas device handle (assigned by firmware)
666 * Context: Calling function should acquire ioc->raid_device_lock
667 *
668 * This searches for raid_device based on wwid, then return raid_device
669 * object.
670 */
671static struct _raid_device *
672_scsih_raid_device_find_by_wwid(struct MPT2SAS_ADAPTER *ioc, u64 wwid)
673{
674 struct _raid_device *raid_device, *r;
675
676 r = NULL;
677 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
678 if (raid_device->wwid != wwid)
679 continue;
680 r = raid_device;
681 goto out;
682 }
683
684 out:
685 return r;
686}
687
688/**
689 * _scsih_raid_device_add - add raid_device object
690 * @ioc: per adapter object
691 * @raid_device: raid_device object
692 *
693 * This is added to the raid_device_list link list.
694 */
695static void
696_scsih_raid_device_add(struct MPT2SAS_ADAPTER *ioc,
697 struct _raid_device *raid_device)
698{
699 unsigned long flags;
700
Kashyap, Desaieabb08a2010-06-17 13:43:57 +0530701 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle"
Eric Moore635374e2009-03-09 01:21:12 -0600702 "(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
703 raid_device->handle, (unsigned long long)raid_device->wwid));
704
705 spin_lock_irqsave(&ioc->raid_device_lock, flags);
706 list_add_tail(&raid_device->list, &ioc->raid_device_list);
707 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
708}
709
710/**
711 * _scsih_raid_device_remove - delete raid_device object
712 * @ioc: per adapter object
713 * @raid_device: raid_device object
714 *
715 * This is removed from the raid_device_list link list.
716 */
717static void
718_scsih_raid_device_remove(struct MPT2SAS_ADAPTER *ioc,
719 struct _raid_device *raid_device)
720{
721 unsigned long flags;
722
723 spin_lock_irqsave(&ioc->raid_device_lock, flags);
724 list_del(&raid_device->list);
725 memset(raid_device, 0, sizeof(struct _raid_device));
726 kfree(raid_device);
727 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
728}
729
730/**
Kashyap, Desaic5e039b2009-09-23 17:21:29 +0530731 * mpt2sas_scsih_expander_find_by_handle - expander device search
732 * @ioc: per adapter object
733 * @handle: expander handle (assigned by firmware)
734 * Context: Calling function should acquire ioc->sas_device_lock
735 *
736 * This searches for expander device based on handle, then returns the
737 * sas_node object.
738 */
739struct _sas_node *
740mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
741{
742 struct _sas_node *sas_expander, *r;
743
744 r = NULL;
745 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
746 if (sas_expander->handle != handle)
747 continue;
748 r = sas_expander;
749 goto out;
750 }
751 out:
752 return r;
753}
754
755/**
Eric Moore635374e2009-03-09 01:21:12 -0600756 * mpt2sas_scsih_expander_find_by_sas_address - expander device search
757 * @ioc: per adapter object
758 * @sas_address: sas address
759 * Context: Calling function should acquire ioc->sas_node_lock.
760 *
761 * This searches for expander device based on sas_address, then returns the
762 * sas_node object.
763 */
764struct _sas_node *
765mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
766 u64 sas_address)
767{
768 struct _sas_node *sas_expander, *r;
769
770 r = NULL;
771 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
772 if (sas_expander->sas_address != sas_address)
773 continue;
774 r = sas_expander;
775 goto out;
776 }
777 out:
778 return r;
779}
780
781/**
782 * _scsih_expander_node_add - insert expander device to the list.
783 * @ioc: per adapter object
784 * @sas_expander: the sas_device object
785 * Context: This function will acquire ioc->sas_node_lock.
786 *
787 * Adding new object to the ioc->sas_expander_list.
788 *
789 * Return nothing.
790 */
791static void
792_scsih_expander_node_add(struct MPT2SAS_ADAPTER *ioc,
793 struct _sas_node *sas_expander)
794{
795 unsigned long flags;
796
797 spin_lock_irqsave(&ioc->sas_node_lock, flags);
798 list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
799 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
800}
801
802/**
803 * _scsih_is_end_device - determines if device is an end device
804 * @device_info: bitfield providing information about the device.
805 * Context: none
806 *
807 * Returns 1 if end device.
808 */
809static int
810_scsih_is_end_device(u32 device_info)
811{
812 if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
813 ((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
814 (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
815 (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
816 return 1;
817 else
818 return 0;
819}
820
821/**
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530822 * mptscsih_get_scsi_lookup - returns scmd entry
Eric Moore635374e2009-03-09 01:21:12 -0600823 * @ioc: per adapter object
824 * @smid: system request message index
Eric Moore635374e2009-03-09 01:21:12 -0600825 *
826 * Returns the smid stored scmd pointer.
827 */
828static struct scsi_cmnd *
829_scsih_scsi_lookup_get(struct MPT2SAS_ADAPTER *ioc, u16 smid)
830{
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530831 return ioc->scsi_lookup[smid - 1].scmd;
Eric Moore635374e2009-03-09 01:21:12 -0600832}
833
834/**
835 * _scsih_scsi_lookup_find_by_scmd - scmd lookup
836 * @ioc: per adapter object
837 * @smid: system request message index
838 * @scmd: pointer to scsi command object
839 * Context: This function will acquire ioc->scsi_lookup_lock.
840 *
841 * This will search for a scmd pointer in the scsi_lookup array,
842 * returning the revelent smid. A returned value of zero means invalid.
843 */
844static u16
845_scsih_scsi_lookup_find_by_scmd(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd
846 *scmd)
847{
848 u16 smid;
849 unsigned long flags;
850 int i;
851
852 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
853 smid = 0;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530854 for (i = 0; i < ioc->scsiio_depth; i++) {
Eric Moore635374e2009-03-09 01:21:12 -0600855 if (ioc->scsi_lookup[i].scmd == scmd) {
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530856 smid = ioc->scsi_lookup[i].smid;
Eric Moore635374e2009-03-09 01:21:12 -0600857 goto out;
858 }
859 }
860 out:
861 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
862 return smid;
863}
864
865/**
866 * _scsih_scsi_lookup_find_by_target - search for matching channel:id
867 * @ioc: per adapter object
868 * @id: target id
869 * @channel: channel
870 * Context: This function will acquire ioc->scsi_lookup_lock.
871 *
872 * This will search for a matching channel:id in the scsi_lookup array,
873 * returning 1 if found.
874 */
875static u8
876_scsih_scsi_lookup_find_by_target(struct MPT2SAS_ADAPTER *ioc, int id,
877 int channel)
878{
879 u8 found;
880 unsigned long flags;
881 int i;
882
883 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
884 found = 0;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530885 for (i = 0 ; i < ioc->scsiio_depth; i++) {
Eric Moore635374e2009-03-09 01:21:12 -0600886 if (ioc->scsi_lookup[i].scmd &&
887 (ioc->scsi_lookup[i].scmd->device->id == id &&
888 ioc->scsi_lookup[i].scmd->device->channel == channel)) {
889 found = 1;
890 goto out;
891 }
892 }
893 out:
894 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
895 return found;
896}
897
898/**
Eric Moore993e0da2009-05-18 13:00:45 -0600899 * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
900 * @ioc: per adapter object
901 * @id: target id
902 * @lun: lun number
903 * @channel: channel
904 * Context: This function will acquire ioc->scsi_lookup_lock.
905 *
906 * This will search for a matching channel:id:lun in the scsi_lookup array,
907 * returning 1 if found.
908 */
909static u8
910_scsih_scsi_lookup_find_by_lun(struct MPT2SAS_ADAPTER *ioc, int id,
911 unsigned int lun, int channel)
912{
913 u8 found;
914 unsigned long flags;
915 int i;
916
917 spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
918 found = 0;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +0530919 for (i = 0 ; i < ioc->scsiio_depth; i++) {
Eric Moore993e0da2009-05-18 13:00:45 -0600920 if (ioc->scsi_lookup[i].scmd &&
921 (ioc->scsi_lookup[i].scmd->device->id == id &&
922 ioc->scsi_lookup[i].scmd->device->channel == channel &&
923 ioc->scsi_lookup[i].scmd->device->lun == lun)) {
924 found = 1;
925 goto out;
926 }
927 }
928 out:
929 spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
930 return found;
931}
932
933/**
Eric Moore635374e2009-03-09 01:21:12 -0600934 * _scsih_get_chain_buffer_dma - obtain block of chains (dma address)
935 * @ioc: per adapter object
936 * @smid: system request message index
937 *
938 * Returns phys pointer to chain buffer.
939 */
940static dma_addr_t
941_scsih_get_chain_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
942{
943 return ioc->chain_dma + ((smid - 1) * (ioc->request_sz *
944 ioc->chains_needed_per_io));
945}
946
947/**
948 * _scsih_get_chain_buffer - obtain block of chains assigned to a mf request
949 * @ioc: per adapter object
950 * @smid: system request message index
951 *
952 * Returns virt pointer to chain buffer.
953 */
954static void *
955_scsih_get_chain_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
956{
957 return (void *)(ioc->chain + ((smid - 1) * (ioc->request_sz *
958 ioc->chains_needed_per_io)));
959}
960
961/**
962 * _scsih_build_scatter_gather - main sg creation routine
963 * @ioc: per adapter object
964 * @scmd: scsi command
965 * @smid: system request message index
966 * Context: none.
967 *
968 * The main routine that builds scatter gather table from a given
969 * scsi request sent via the .queuecommand main handler.
970 *
971 * Returns 0 success, anything else error
972 */
973static int
974_scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
975 struct scsi_cmnd *scmd, u16 smid)
976{
977 Mpi2SCSIIORequest_t *mpi_request;
978 dma_addr_t chain_dma;
979 struct scatterlist *sg_scmd;
980 void *sg_local, *chain;
981 u32 chain_offset;
982 u32 chain_length;
983 u32 chain_flags;
FUJITA Tomonoribb789d02010-03-09 11:09:50 +0900984 int sges_left;
Eric Moore635374e2009-03-09 01:21:12 -0600985 u32 sges_in_segment;
986 u32 sgl_flags;
987 u32 sgl_flags_last_element;
988 u32 sgl_flags_end_buffer;
989
990 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
991
992 /* init scatter gather flags */
993 sgl_flags = MPI2_SGE_FLAGS_SIMPLE_ELEMENT;
994 if (scmd->sc_data_direction == DMA_TO_DEVICE)
995 sgl_flags |= MPI2_SGE_FLAGS_HOST_TO_IOC;
996 sgl_flags_last_element = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT)
997 << MPI2_SGE_FLAGS_SHIFT;
998 sgl_flags_end_buffer = (sgl_flags | MPI2_SGE_FLAGS_LAST_ELEMENT |
999 MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST)
1000 << MPI2_SGE_FLAGS_SHIFT;
1001 sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
1002
1003 sg_scmd = scsi_sglist(scmd);
1004 sges_left = scsi_dma_map(scmd);
FUJITA Tomonoribb789d02010-03-09 11:09:50 +09001005 if (sges_left < 0) {
Eric Moore635374e2009-03-09 01:21:12 -06001006 sdev_printk(KERN_ERR, scmd->device, "pci_map_sg"
1007 " failed: request for %d bytes!\n", scsi_bufflen(scmd));
1008 return -ENOMEM;
1009 }
1010
1011 sg_local = &mpi_request->SGL;
1012 sges_in_segment = ioc->max_sges_in_main_message;
1013 if (sges_left <= sges_in_segment)
1014 goto fill_in_last_segment;
1015
1016 mpi_request->ChainOffset = (offsetof(Mpi2SCSIIORequest_t, SGL) +
1017 (sges_in_segment * ioc->sge_size))/4;
1018
1019 /* fill in main message segment when there is a chain following */
1020 while (sges_in_segment) {
1021 if (sges_in_segment == 1)
1022 ioc->base_add_sg_single(sg_local,
1023 sgl_flags_last_element | sg_dma_len(sg_scmd),
1024 sg_dma_address(sg_scmd));
1025 else
1026 ioc->base_add_sg_single(sg_local, sgl_flags |
1027 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1028 sg_scmd = sg_next(sg_scmd);
1029 sg_local += ioc->sge_size;
1030 sges_left--;
1031 sges_in_segment--;
1032 }
1033
1034 /* initializing the chain flags and pointers */
1035 chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
1036 chain = _scsih_get_chain_buffer(ioc, smid);
1037 chain_dma = _scsih_get_chain_buffer_dma(ioc, smid);
1038 do {
1039 sges_in_segment = (sges_left <=
1040 ioc->max_sges_in_chain_message) ? sges_left :
1041 ioc->max_sges_in_chain_message;
1042 chain_offset = (sges_left == sges_in_segment) ?
1043 0 : (sges_in_segment * ioc->sge_size)/4;
1044 chain_length = sges_in_segment * ioc->sge_size;
1045 if (chain_offset) {
1046 chain_offset = chain_offset <<
1047 MPI2_SGE_CHAIN_OFFSET_SHIFT;
1048 chain_length += ioc->sge_size;
1049 }
1050 ioc->base_add_sg_single(sg_local, chain_flags | chain_offset |
1051 chain_length, chain_dma);
1052 sg_local = chain;
1053 if (!chain_offset)
1054 goto fill_in_last_segment;
1055
1056 /* fill in chain segments */
1057 while (sges_in_segment) {
1058 if (sges_in_segment == 1)
1059 ioc->base_add_sg_single(sg_local,
1060 sgl_flags_last_element |
1061 sg_dma_len(sg_scmd),
1062 sg_dma_address(sg_scmd));
1063 else
1064 ioc->base_add_sg_single(sg_local, sgl_flags |
1065 sg_dma_len(sg_scmd),
1066 sg_dma_address(sg_scmd));
1067 sg_scmd = sg_next(sg_scmd);
1068 sg_local += ioc->sge_size;
1069 sges_left--;
1070 sges_in_segment--;
1071 }
1072
1073 chain_dma += ioc->request_sz;
1074 chain += ioc->request_sz;
1075 } while (1);
1076
1077
1078 fill_in_last_segment:
1079
1080 /* fill the last segment */
1081 while (sges_left) {
1082 if (sges_left == 1)
1083 ioc->base_add_sg_single(sg_local, sgl_flags_end_buffer |
1084 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1085 else
1086 ioc->base_add_sg_single(sg_local, sgl_flags |
1087 sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
1088 sg_scmd = sg_next(sg_scmd);
1089 sg_local += ioc->sge_size;
1090 sges_left--;
1091 }
1092
1093 return 0;
1094}
1095
1096/**
Eric Moored5d135b2009-05-18 13:02:08 -06001097 * _scsih_change_queue_depth - setting device queue depth
Eric Moore635374e2009-03-09 01:21:12 -06001098 * @sdev: scsi device struct
1099 * @qdepth: requested queue depth
Mike Christiee881a172009-10-15 17:46:39 -07001100 * @reason: calling context
Eric Moore635374e2009-03-09 01:21:12 -06001101 *
1102 * Returns queue depth.
1103 */
1104static int
Mike Christiee881a172009-10-15 17:46:39 -07001105_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
Eric Moore635374e2009-03-09 01:21:12 -06001106{
1107 struct Scsi_Host *shost = sdev->host;
1108 int max_depth;
1109 int tag_type;
Kashyap, Desaie0077d62009-09-23 17:30:22 +05301110 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1111 struct MPT2SAS_DEVICE *sas_device_priv_data;
1112 struct MPT2SAS_TARGET *sas_target_priv_data;
1113 struct _sas_device *sas_device;
1114 unsigned long flags;
Eric Moore635374e2009-03-09 01:21:12 -06001115
Mike Christiee881a172009-10-15 17:46:39 -07001116 if (reason != SCSI_QDEPTH_DEFAULT)
1117 return -EOPNOTSUPP;
1118
Eric Moore635374e2009-03-09 01:21:12 -06001119 max_depth = shost->can_queue;
Kashyap, Desaie0077d62009-09-23 17:30:22 +05301120
1121 /* limit max device queue for SATA to 32 */
1122 sas_device_priv_data = sdev->hostdata;
1123 if (!sas_device_priv_data)
1124 goto not_sata;
1125 sas_target_priv_data = sas_device_priv_data->sas_target;
1126 if (!sas_target_priv_data)
1127 goto not_sata;
1128 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1129 goto not_sata;
1130 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1131 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1132 sas_device_priv_data->sas_target->sas_address);
1133 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1134 if (sas_device && sas_device->device_info &
1135 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1136 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
1137
1138 not_sata:
1139
Eric Moore635374e2009-03-09 01:21:12 -06001140 if (!sdev->tagged_supported)
1141 max_depth = 1;
1142 if (qdepth > max_depth)
1143 qdepth = max_depth;
1144 tag_type = (qdepth == 1) ? 0 : MSG_SIMPLE_TAG;
1145 scsi_adjust_queue_depth(sdev, tag_type, qdepth);
1146
1147 if (sdev->inquiry_len > 7)
1148 sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
1149 "simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
1150 sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
1151 sdev->ordered_tags, sdev->scsi_level,
1152 (sdev->inquiry[7] & 2) >> 1);
1153
1154 return sdev->queue_depth;
1155}
1156
1157/**
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05301158 * _scsih_change_queue_type - changing device queue tag type
Eric Moore635374e2009-03-09 01:21:12 -06001159 * @sdev: scsi device struct
1160 * @tag_type: requested tag type
1161 *
1162 * Returns queue tag type.
1163 */
1164static int
Eric Moored5d135b2009-05-18 13:02:08 -06001165_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
Eric Moore635374e2009-03-09 01:21:12 -06001166{
1167 if (sdev->tagged_supported) {
1168 scsi_set_tag_type(sdev, tag_type);
1169 if (tag_type)
1170 scsi_activate_tcq(sdev, sdev->queue_depth);
1171 else
1172 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1173 } else
1174 tag_type = 0;
1175
1176 return tag_type;
1177}
1178
1179/**
Eric Moored5d135b2009-05-18 13:02:08 -06001180 * _scsih_target_alloc - target add routine
Eric Moore635374e2009-03-09 01:21:12 -06001181 * @starget: scsi target struct
1182 *
1183 * Returns 0 if ok. Any other return is assumed to be an error and
1184 * the device is ignored.
1185 */
1186static int
Eric Moored5d135b2009-05-18 13:02:08 -06001187_scsih_target_alloc(struct scsi_target *starget)
Eric Moore635374e2009-03-09 01:21:12 -06001188{
1189 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1190 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1191 struct MPT2SAS_TARGET *sas_target_priv_data;
1192 struct _sas_device *sas_device;
1193 struct _raid_device *raid_device;
1194 unsigned long flags;
1195 struct sas_rphy *rphy;
1196
1197 sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
1198 if (!sas_target_priv_data)
1199 return -ENOMEM;
1200
1201 starget->hostdata = sas_target_priv_data;
1202 sas_target_priv_data->starget = starget;
1203 sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE;
1204
1205 /* RAID volumes */
1206 if (starget->channel == RAID_CHANNEL) {
1207 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1208 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1209 starget->channel);
1210 if (raid_device) {
1211 sas_target_priv_data->handle = raid_device->handle;
1212 sas_target_priv_data->sas_address = raid_device->wwid;
1213 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
1214 raid_device->starget = starget;
1215 }
1216 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1217 return 0;
1218 }
1219
1220 /* sas/sata devices */
1221 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1222 rphy = dev_to_rphy(starget->dev.parent);
1223 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1224 rphy->identify.sas_address);
1225
1226 if (sas_device) {
1227 sas_target_priv_data->handle = sas_device->handle;
1228 sas_target_priv_data->sas_address = sas_device->sas_address;
1229 sas_device->starget = starget;
1230 sas_device->id = starget->id;
1231 sas_device->channel = starget->channel;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05301232 if (test_bit(sas_device->handle, ioc->pd_handles))
Eric Moore635374e2009-03-09 01:21:12 -06001233 sas_target_priv_data->flags |=
1234 MPT_TARGET_FLAGS_RAID_COMPONENT;
1235 }
1236 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1237
1238 return 0;
1239}
1240
1241/**
Eric Moored5d135b2009-05-18 13:02:08 -06001242 * _scsih_target_destroy - target destroy routine
Eric Moore635374e2009-03-09 01:21:12 -06001243 * @starget: scsi target struct
1244 *
1245 * Returns nothing.
1246 */
1247static void
Eric Moored5d135b2009-05-18 13:02:08 -06001248_scsih_target_destroy(struct scsi_target *starget)
Eric Moore635374e2009-03-09 01:21:12 -06001249{
1250 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
1251 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1252 struct MPT2SAS_TARGET *sas_target_priv_data;
1253 struct _sas_device *sas_device;
1254 struct _raid_device *raid_device;
1255 unsigned long flags;
1256 struct sas_rphy *rphy;
1257
1258 sas_target_priv_data = starget->hostdata;
1259 if (!sas_target_priv_data)
1260 return;
1261
1262 if (starget->channel == RAID_CHANNEL) {
1263 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1264 raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
1265 starget->channel);
1266 if (raid_device) {
1267 raid_device->starget = NULL;
1268 raid_device->sdev = NULL;
1269 }
1270 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1271 goto out;
1272 }
1273
1274 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1275 rphy = dev_to_rphy(starget->dev.parent);
1276 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1277 rphy->identify.sas_address);
Eric Moore8901cbb2009-04-21 15:41:32 -06001278 if (sas_device && (sas_device->starget == starget) &&
1279 (sas_device->id == starget->id) &&
1280 (sas_device->channel == starget->channel))
Eric Moore635374e2009-03-09 01:21:12 -06001281 sas_device->starget = NULL;
1282
1283 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1284
1285 out:
1286 kfree(sas_target_priv_data);
1287 starget->hostdata = NULL;
1288}
1289
1290/**
Eric Moored5d135b2009-05-18 13:02:08 -06001291 * _scsih_slave_alloc - device add routine
Eric Moore635374e2009-03-09 01:21:12 -06001292 * @sdev: scsi device struct
1293 *
1294 * Returns 0 if ok. Any other return is assumed to be an error and
1295 * the device is ignored.
1296 */
1297static int
Eric Moored5d135b2009-05-18 13:02:08 -06001298_scsih_slave_alloc(struct scsi_device *sdev)
Eric Moore635374e2009-03-09 01:21:12 -06001299{
1300 struct Scsi_Host *shost;
1301 struct MPT2SAS_ADAPTER *ioc;
1302 struct MPT2SAS_TARGET *sas_target_priv_data;
1303 struct MPT2SAS_DEVICE *sas_device_priv_data;
1304 struct scsi_target *starget;
1305 struct _raid_device *raid_device;
Eric Moore635374e2009-03-09 01:21:12 -06001306 unsigned long flags;
1307
1308 sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
1309 if (!sas_device_priv_data)
1310 return -ENOMEM;
1311
1312 sas_device_priv_data->lun = sdev->lun;
1313 sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
1314
1315 starget = scsi_target(sdev);
1316 sas_target_priv_data = starget->hostdata;
1317 sas_target_priv_data->num_luns++;
1318 sas_device_priv_data->sas_target = sas_target_priv_data;
1319 sdev->hostdata = sas_device_priv_data;
1320 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
1321 sdev->no_uld_attach = 1;
1322
1323 shost = dev_to_shost(&starget->dev);
1324 ioc = shost_priv(shost);
1325 if (starget->channel == RAID_CHANNEL) {
1326 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1327 raid_device = _scsih_raid_device_find_by_id(ioc,
1328 starget->id, starget->channel);
1329 if (raid_device)
1330 raid_device->sdev = sdev; /* raid is single lun */
1331 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
Eric Moore635374e2009-03-09 01:21:12 -06001332 }
1333
Eric Moore635374e2009-03-09 01:21:12 -06001334 return 0;
1335}
1336
1337/**
Eric Moored5d135b2009-05-18 13:02:08 -06001338 * _scsih_slave_destroy - device destroy routine
Eric Moore635374e2009-03-09 01:21:12 -06001339 * @sdev: scsi device struct
1340 *
1341 * Returns nothing.
1342 */
1343static void
Eric Moored5d135b2009-05-18 13:02:08 -06001344_scsih_slave_destroy(struct scsi_device *sdev)
Eric Moore635374e2009-03-09 01:21:12 -06001345{
1346 struct MPT2SAS_TARGET *sas_target_priv_data;
1347 struct scsi_target *starget;
1348
1349 if (!sdev->hostdata)
1350 return;
1351
1352 starget = scsi_target(sdev);
1353 sas_target_priv_data = starget->hostdata;
1354 sas_target_priv_data->num_luns--;
1355 kfree(sdev->hostdata);
1356 sdev->hostdata = NULL;
1357}
1358
1359/**
Eric Moored5d135b2009-05-18 13:02:08 -06001360 * _scsih_display_sata_capabilities - sata capabilities
Eric Moore635374e2009-03-09 01:21:12 -06001361 * @ioc: per adapter object
1362 * @sas_device: the sas_device object
1363 * @sdev: scsi device struct
1364 */
1365static void
Eric Moored5d135b2009-05-18 13:02:08 -06001366_scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
Eric Moore635374e2009-03-09 01:21:12 -06001367 struct _sas_device *sas_device, struct scsi_device *sdev)
1368{
1369 Mpi2ConfigReply_t mpi_reply;
1370 Mpi2SasDevicePage0_t sas_device_pg0;
1371 u32 ioc_status;
1372 u16 flags;
1373 u32 device_info;
1374
1375 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
1376 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, sas_device->handle))) {
1377 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1378 ioc->name, __FILE__, __LINE__, __func__);
1379 return;
1380 }
1381
1382 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1383 MPI2_IOCSTATUS_MASK;
1384 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1385 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1386 ioc->name, __FILE__, __LINE__, __func__);
1387 return;
1388 }
1389
1390 flags = le16_to_cpu(sas_device_pg0.Flags);
Kashyap, Desaie94f6742010-03-17 16:24:52 +05301391 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
Eric Moore635374e2009-03-09 01:21:12 -06001392
1393 sdev_printk(KERN_INFO, sdev,
1394 "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
1395 "sw_preserve(%s)\n",
1396 (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
1397 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
1398 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
1399 "n",
1400 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
1401 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
1402 (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
1403}
1404
1405/**
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05301406 * _scsih_is_raid - return boolean indicating device is raid volume
1407 * @dev the device struct object
1408 */
1409static int
1410_scsih_is_raid(struct device *dev)
1411{
1412 struct scsi_device *sdev = to_scsi_device(dev);
1413
1414 return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
1415}
1416
1417/**
1418 * _scsih_get_resync - get raid volume resync percent complete
1419 * @dev the device struct object
1420 */
1421static void
1422_scsih_get_resync(struct device *dev)
1423{
1424 struct scsi_device *sdev = to_scsi_device(dev);
1425 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1426 static struct _raid_device *raid_device;
1427 unsigned long flags;
1428 Mpi2RaidVolPage0_t vol_pg0;
1429 Mpi2ConfigReply_t mpi_reply;
1430 u32 volume_status_flags;
1431 u8 percent_complete = 0;
1432
1433 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1434 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1435 sdev->channel);
1436 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1437
1438 if (!raid_device)
1439 goto out;
1440
1441 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1442 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1443 sizeof(Mpi2RaidVolPage0_t))) {
1444 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1445 ioc->name, __FILE__, __LINE__, __func__);
1446 goto out;
1447 }
1448
1449 volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1450 if (volume_status_flags & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS)
1451 percent_complete = raid_device->percent_complete;
1452 out:
1453 raid_set_resync(mpt2sas_raid_template, dev, percent_complete);
1454}
1455
1456/**
1457 * _scsih_get_state - get raid volume level
1458 * @dev the device struct object
1459 */
1460static void
1461_scsih_get_state(struct device *dev)
1462{
1463 struct scsi_device *sdev = to_scsi_device(dev);
1464 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
1465 static struct _raid_device *raid_device;
1466 unsigned long flags;
1467 Mpi2RaidVolPage0_t vol_pg0;
1468 Mpi2ConfigReply_t mpi_reply;
1469 u32 volstate;
1470 enum raid_state state = RAID_STATE_UNKNOWN;
1471
1472 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1473 raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
1474 sdev->channel);
1475 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1476
1477 if (!raid_device)
1478 goto out;
1479
1480 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
1481 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle,
1482 sizeof(Mpi2RaidVolPage0_t))) {
1483 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1484 ioc->name, __FILE__, __LINE__, __func__);
1485 goto out;
1486 }
1487
1488 volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
1489 if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
1490 state = RAID_STATE_RESYNCING;
1491 goto out;
1492 }
1493
1494 switch (vol_pg0.VolumeState) {
1495 case MPI2_RAID_VOL_STATE_OPTIMAL:
1496 case MPI2_RAID_VOL_STATE_ONLINE:
1497 state = RAID_STATE_ACTIVE;
1498 break;
1499 case MPI2_RAID_VOL_STATE_DEGRADED:
1500 state = RAID_STATE_DEGRADED;
1501 break;
1502 case MPI2_RAID_VOL_STATE_FAILED:
1503 case MPI2_RAID_VOL_STATE_MISSING:
1504 state = RAID_STATE_OFFLINE;
1505 break;
1506 }
1507 out:
1508 raid_set_state(mpt2sas_raid_template, dev, state);
1509}
1510
1511/**
1512 * _scsih_set_level - set raid level
1513 * @sdev: scsi device struct
1514 * @raid_device: raid_device object
1515 */
1516static void
1517_scsih_set_level(struct scsi_device *sdev, struct _raid_device *raid_device)
1518{
1519 enum raid_level level = RAID_LEVEL_UNKNOWN;
1520
1521 switch (raid_device->volume_type) {
1522 case MPI2_RAID_VOL_TYPE_RAID0:
1523 level = RAID_LEVEL_0;
1524 break;
1525 case MPI2_RAID_VOL_TYPE_RAID10:
1526 level = RAID_LEVEL_10;
1527 break;
1528 case MPI2_RAID_VOL_TYPE_RAID1E:
1529 level = RAID_LEVEL_1E;
1530 break;
1531 case MPI2_RAID_VOL_TYPE_RAID1:
1532 level = RAID_LEVEL_1;
1533 break;
1534 }
1535
1536 raid_set_level(mpt2sas_raid_template, &sdev->sdev_gendev, level);
1537}
1538
1539/**
Eric Moore635374e2009-03-09 01:21:12 -06001540 * _scsih_get_volume_capabilities - volume capabilities
1541 * @ioc: per adapter object
1542 * @sas_device: the raid_device object
1543 */
1544static void
1545_scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc,
1546 struct _raid_device *raid_device)
1547{
1548 Mpi2RaidVolPage0_t *vol_pg0;
1549 Mpi2RaidPhysDiskPage0_t pd_pg0;
1550 Mpi2SasDevicePage0_t sas_device_pg0;
1551 Mpi2ConfigReply_t mpi_reply;
1552 u16 sz;
1553 u8 num_pds;
1554
1555 if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle,
1556 &num_pds)) || !num_pds) {
1557 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1558 ioc->name, __FILE__, __LINE__, __func__);
1559 return;
1560 }
1561
1562 raid_device->num_pds = num_pds;
1563 sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
1564 sizeof(Mpi2RaidVol0PhysDisk_t));
1565 vol_pg0 = kzalloc(sz, GFP_KERNEL);
1566 if (!vol_pg0) {
1567 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1568 ioc->name, __FILE__, __LINE__, __func__);
1569 return;
1570 }
1571
1572 if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
1573 MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
1574 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1575 ioc->name, __FILE__, __LINE__, __func__);
1576 kfree(vol_pg0);
1577 return;
1578 }
1579
1580 raid_device->volume_type = vol_pg0->VolumeType;
1581
1582 /* figure out what the underlying devices are by
1583 * obtaining the device_info bits for the 1st device
1584 */
1585 if (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
1586 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
1587 vol_pg0->PhysDisk[0].PhysDiskNum))) {
1588 if (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
1589 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
1590 le16_to_cpu(pd_pg0.DevHandle)))) {
1591 raid_device->device_info =
1592 le32_to_cpu(sas_device_pg0.DeviceInfo);
1593 }
1594 }
1595
1596 kfree(vol_pg0);
1597}
1598
1599/**
Kashyap, Desai84f0b042009-12-16 18:56:28 +05301600 * _scsih_enable_tlr - setting TLR flags
1601 * @ioc: per adapter object
1602 * @sdev: scsi device struct
1603 *
1604 * Enabling Transaction Layer Retries for tape devices when
1605 * vpd page 0x90 is present
1606 *
1607 */
1608static void
1609_scsih_enable_tlr(struct MPT2SAS_ADAPTER *ioc, struct scsi_device *sdev)
1610{
1611 /* only for TAPE */
1612 if (sdev->type != TYPE_TAPE)
1613 return;
1614
1615 if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
1616 return;
1617
1618 sas_enable_tlr(sdev);
1619 sdev_printk(KERN_INFO, sdev, "TLR %s\n",
1620 sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
1621 return;
1622
1623}
1624
1625/**
Eric Moored5d135b2009-05-18 13:02:08 -06001626 * _scsih_slave_configure - device configure routine.
Eric Moore635374e2009-03-09 01:21:12 -06001627 * @sdev: scsi device struct
1628 *
1629 * Returns 0 if ok. Any other return is assumed to be an error and
1630 * the device is ignored.
1631 */
1632static int
Eric Moored5d135b2009-05-18 13:02:08 -06001633_scsih_slave_configure(struct scsi_device *sdev)
Eric Moore635374e2009-03-09 01:21:12 -06001634{
1635 struct Scsi_Host *shost = sdev->host;
1636 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
1637 struct MPT2SAS_DEVICE *sas_device_priv_data;
1638 struct MPT2SAS_TARGET *sas_target_priv_data;
1639 struct _sas_device *sas_device;
1640 struct _raid_device *raid_device;
1641 unsigned long flags;
1642 int qdepth;
1643 u8 ssp_target = 0;
1644 char *ds = "";
1645 char *r_level = "";
1646
1647 qdepth = 1;
1648 sas_device_priv_data = sdev->hostdata;
1649 sas_device_priv_data->configured_lun = 1;
1650 sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
1651 sas_target_priv_data = sas_device_priv_data->sas_target;
1652
1653 /* raid volume handling */
1654 if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
1655
1656 spin_lock_irqsave(&ioc->raid_device_lock, flags);
1657 raid_device = _scsih_raid_device_find_by_handle(ioc,
1658 sas_target_priv_data->handle);
1659 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
1660 if (!raid_device) {
1661 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
1662 ioc->name, __FILE__, __LINE__, __func__);
1663 return 0;
1664 }
1665
1666 _scsih_get_volume_capabilities(ioc, raid_device);
1667
1668 /* RAID Queue Depth Support
1669 * IS volume = underlying qdepth of drive type, either
1670 * MPT2SAS_SAS_QUEUE_DEPTH or MPT2SAS_SATA_QUEUE_DEPTH
1671 * IM/IME/R10 = 128 (MPT2SAS_RAID_QUEUE_DEPTH)
1672 */
1673 if (raid_device->device_info &
1674 MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1675 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1676 ds = "SSP";
1677 } else {
1678 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1679 if (raid_device->device_info &
1680 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1681 ds = "SATA";
1682 else
1683 ds = "STP";
1684 }
1685
1686 switch (raid_device->volume_type) {
1687 case MPI2_RAID_VOL_TYPE_RAID0:
1688 r_level = "RAID0";
1689 break;
1690 case MPI2_RAID_VOL_TYPE_RAID1E:
1691 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
Kashyap, Desaied79f122009-08-20 13:23:49 +05301692 if (ioc->manu_pg10.OEMIdentifier &&
1693 (ioc->manu_pg10.GenericFlags0 &
1694 MFG10_GF0_R10_DISPLAY) &&
1695 !(raid_device->num_pds % 2))
1696 r_level = "RAID10";
1697 else
1698 r_level = "RAID1E";
Eric Moore635374e2009-03-09 01:21:12 -06001699 break;
1700 case MPI2_RAID_VOL_TYPE_RAID1:
1701 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1702 r_level = "RAID1";
1703 break;
1704 case MPI2_RAID_VOL_TYPE_RAID10:
1705 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1706 r_level = "RAID10";
1707 break;
1708 case MPI2_RAID_VOL_TYPE_UNKNOWN:
1709 default:
1710 qdepth = MPT2SAS_RAID_QUEUE_DEPTH;
1711 r_level = "RAIDX";
1712 break;
1713 }
1714
1715 sdev_printk(KERN_INFO, sdev, "%s: "
1716 "handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
1717 r_level, raid_device->handle,
1718 (unsigned long long)raid_device->wwid,
1719 raid_device->num_pds, ds);
Mike Christiee881a172009-10-15 17:46:39 -07001720 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05301721 /* raid transport support */
1722 _scsih_set_level(sdev, raid_device);
Eric Moore635374e2009-03-09 01:21:12 -06001723 return 0;
1724 }
1725
1726 /* non-raid handling */
1727 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1728 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
1729 sas_device_priv_data->sas_target->sas_address);
1730 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1731 if (sas_device) {
1732 if (sas_target_priv_data->flags &
1733 MPT_TARGET_FLAGS_RAID_COMPONENT) {
1734 mpt2sas_config_get_volume_handle(ioc,
1735 sas_device->handle, &sas_device->volume_handle);
1736 mpt2sas_config_get_volume_wwid(ioc,
1737 sas_device->volume_handle,
1738 &sas_device->volume_wwid);
1739 }
1740 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
1741 qdepth = MPT2SAS_SAS_QUEUE_DEPTH;
1742 ssp_target = 1;
1743 ds = "SSP";
1744 } else {
1745 qdepth = MPT2SAS_SATA_QUEUE_DEPTH;
1746 if (sas_device->device_info &
1747 MPI2_SAS_DEVICE_INFO_STP_TARGET)
1748 ds = "STP";
1749 else if (sas_device->device_info &
1750 MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1751 ds = "SATA";
1752 }
1753
1754 sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), "
Kashyap, Desai7fbae672010-06-17 13:45:17 +05301755 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
Eric Moore635374e2009-03-09 01:21:12 -06001756 ds, sas_device->handle,
1757 (unsigned long long)sas_device->sas_address,
Kashyap, Desai7fbae672010-06-17 13:45:17 +05301758 sas_device->phy,
Eric Moore635374e2009-03-09 01:21:12 -06001759 (unsigned long long)sas_device->device_name);
1760 sdev_printk(KERN_INFO, sdev, "%s: "
1761 "enclosure_logical_id(0x%016llx), slot(%d)\n", ds,
1762 (unsigned long long) sas_device->enclosure_logical_id,
1763 sas_device->slot);
1764
1765 if (!ssp_target)
Eric Moored5d135b2009-05-18 13:02:08 -06001766 _scsih_display_sata_capabilities(ioc, sas_device, sdev);
Eric Moore635374e2009-03-09 01:21:12 -06001767 }
1768
Mike Christiee881a172009-10-15 17:46:39 -07001769 _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
Eric Moore635374e2009-03-09 01:21:12 -06001770
Kashyap, Desai84f0b042009-12-16 18:56:28 +05301771 if (ssp_target) {
Eric Moore635374e2009-03-09 01:21:12 -06001772 sas_read_port_mode_page(sdev);
Kashyap, Desai84f0b042009-12-16 18:56:28 +05301773 _scsih_enable_tlr(ioc, sdev);
1774 }
Eric Moore635374e2009-03-09 01:21:12 -06001775 return 0;
1776}
1777
1778/**
Eric Moored5d135b2009-05-18 13:02:08 -06001779 * _scsih_bios_param - fetch head, sector, cylinder info for a disk
Eric Moore635374e2009-03-09 01:21:12 -06001780 * @sdev: scsi device struct
1781 * @bdev: pointer to block device context
1782 * @capacity: device size (in 512 byte sectors)
1783 * @params: three element array to place output:
1784 * params[0] number of heads (max 255)
1785 * params[1] number of sectors (max 63)
1786 * params[2] number of cylinders
1787 *
1788 * Return nothing.
1789 */
1790static int
Eric Moored5d135b2009-05-18 13:02:08 -06001791_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
Eric Moore635374e2009-03-09 01:21:12 -06001792 sector_t capacity, int params[])
1793{
1794 int heads;
1795 int sectors;
1796 sector_t cylinders;
1797 ulong dummy;
1798
1799 heads = 64;
1800 sectors = 32;
1801
1802 dummy = heads * sectors;
1803 cylinders = capacity;
1804 sector_div(cylinders, dummy);
1805
1806 /*
1807 * Handle extended translation size for logical drives
1808 * > 1Gb
1809 */
1810 if ((ulong)capacity >= 0x200000) {
1811 heads = 255;
1812 sectors = 63;
1813 dummy = heads * sectors;
1814 cylinders = capacity;
1815 sector_div(cylinders, dummy);
1816 }
1817
1818 /* return result */
1819 params[0] = heads;
1820 params[1] = sectors;
1821 params[2] = cylinders;
1822
1823 return 0;
1824}
1825
1826/**
1827 * _scsih_response_code - translation of device response code
1828 * @ioc: per adapter object
1829 * @response_code: response code returned by the device
1830 *
1831 * Return nothing.
1832 */
1833static void
1834_scsih_response_code(struct MPT2SAS_ADAPTER *ioc, u8 response_code)
1835{
1836 char *desc;
1837
1838 switch (response_code) {
1839 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1840 desc = "task management request completed";
1841 break;
1842 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1843 desc = "invalid frame";
1844 break;
1845 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1846 desc = "task management request not supported";
1847 break;
1848 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1849 desc = "task management request failed";
1850 break;
1851 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1852 desc = "task management request succeeded";
1853 break;
1854 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1855 desc = "invalid lun";
1856 break;
1857 case 0xA:
1858 desc = "overlapped tag attempted";
1859 break;
1860 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1861 desc = "task queued, however not sent to target";
1862 break;
1863 default:
1864 desc = "unknown";
1865 break;
1866 }
1867 printk(MPT2SAS_WARN_FMT "response_code(0x%01x): %s\n",
1868 ioc->name, response_code, desc);
1869}
1870
1871/**
Eric Moored5d135b2009-05-18 13:02:08 -06001872 * _scsih_tm_done - tm completion routine
Eric Moore635374e2009-03-09 01:21:12 -06001873 * @ioc: per adapter object
1874 * @smid: system request message index
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301875 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -06001876 * @reply: reply message frame(lower 32bit addr)
1877 * Context: none.
1878 *
1879 * The callback handler when using scsih_issue_tm.
1880 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05301881 * Return 1 meaning mf should be freed from _base_interrupt
1882 * 0 means the mf is freed from this function.
Eric Moore635374e2009-03-09 01:21:12 -06001883 */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05301884static u8
Kashyap, Desai7b936b02009-09-25 11:44:41 +05301885_scsih_tm_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
Eric Moore635374e2009-03-09 01:21:12 -06001886{
1887 MPI2DefaultReply_t *mpi_reply;
1888
1889 if (ioc->tm_cmds.status == MPT2_CMD_NOT_USED)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05301890 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06001891 if (ioc->tm_cmds.smid != smid)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05301892 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06001893 ioc->tm_cmds.status |= MPT2_CMD_COMPLETE;
1894 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
1895 if (mpi_reply) {
1896 memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
1897 ioc->tm_cmds.status |= MPT2_CMD_REPLY_VALID;
1898 }
1899 ioc->tm_cmds.status &= ~MPT2_CMD_PENDING;
1900 complete(&ioc->tm_cmds.done);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05301901 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06001902}
1903
1904/**
1905 * mpt2sas_scsih_set_tm_flag - set per target tm_busy
1906 * @ioc: per adapter object
1907 * @handle: device handle
1908 *
1909 * During taskmangement request, we need to freeze the device queue.
1910 */
1911void
1912mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1913{
1914 struct MPT2SAS_DEVICE *sas_device_priv_data;
1915 struct scsi_device *sdev;
1916 u8 skip = 0;
1917
1918 shost_for_each_device(sdev, ioc->shost) {
1919 if (skip)
1920 continue;
1921 sas_device_priv_data = sdev->hostdata;
1922 if (!sas_device_priv_data)
1923 continue;
1924 if (sas_device_priv_data->sas_target->handle == handle) {
1925 sas_device_priv_data->sas_target->tm_busy = 1;
1926 skip = 1;
1927 ioc->ignore_loginfos = 1;
1928 }
1929 }
1930}
1931
1932/**
1933 * mpt2sas_scsih_clear_tm_flag - clear per target tm_busy
1934 * @ioc: per adapter object
1935 * @handle: device handle
1936 *
1937 * During taskmangement request, we need to freeze the device queue.
1938 */
1939void
1940mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
1941{
1942 struct MPT2SAS_DEVICE *sas_device_priv_data;
1943 struct scsi_device *sdev;
1944 u8 skip = 0;
1945
1946 shost_for_each_device(sdev, ioc->shost) {
1947 if (skip)
1948 continue;
1949 sas_device_priv_data = sdev->hostdata;
1950 if (!sas_device_priv_data)
1951 continue;
1952 if (sas_device_priv_data->sas_target->handle == handle) {
1953 sas_device_priv_data->sas_target->tm_busy = 0;
1954 skip = 1;
1955 ioc->ignore_loginfos = 0;
1956 }
1957 }
1958}
1959
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301960
Eric Moore635374e2009-03-09 01:21:12 -06001961/**
1962 * mpt2sas_scsih_issue_tm - main routine for sending tm requests
1963 * @ioc: per adapter struct
1964 * @device_handle: device handle
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301965 * @channel: the channel assigned by the OS
1966 * @id: the id assigned by the OS
Eric Moore635374e2009-03-09 01:21:12 -06001967 * @lun: lun number
1968 * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
1969 * @smid_task: smid assigned to the task
1970 * @timeout: timeout in seconds
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301971 * Context: user
Eric Moore635374e2009-03-09 01:21:12 -06001972 *
1973 * A generic API for sending task management requests to firmware.
1974 *
Eric Moore635374e2009-03-09 01:21:12 -06001975 * The callback index is set inside `ioc->tm_cb_idx`.
1976 *
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301977 * Return SUCCESS or FAILED.
Eric Moore635374e2009-03-09 01:21:12 -06001978 */
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301979int
1980mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint channel,
1981 uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
1982 struct scsi_cmnd *scmd)
Eric Moore635374e2009-03-09 01:21:12 -06001983{
1984 Mpi2SCSITaskManagementRequest_t *mpi_request;
1985 Mpi2SCSITaskManagementReply_t *mpi_reply;
1986 u16 smid = 0;
1987 u32 ioc_state;
1988 unsigned long timeleft;
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301989 struct scsi_cmnd *scmd_lookup;
1990 int rc;
Eric Moore635374e2009-03-09 01:21:12 -06001991
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301992 mutex_lock(&ioc->tm_cmds.mutex);
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05301993 if (ioc->tm_cmds.status != MPT2_CMD_NOT_USED) {
1994 printk(MPT2SAS_INFO_FMT "%s: tm_cmd busy!!!\n",
1995 __func__, ioc->name);
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05301996 rc = FAILED;
1997 goto err_out;
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05301998 }
1999
Eric Moore3cb54692010-07-08 14:44:34 -06002000 if (ioc->shost_recovery || ioc->remove_host ||
2001 ioc->pci_error_recovery) {
Eric Moore635374e2009-03-09 01:21:12 -06002002 printk(MPT2SAS_INFO_FMT "%s: host reset in progress!\n",
2003 __func__, ioc->name);
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302004 rc = FAILED;
2005 goto err_out;
Eric Moore635374e2009-03-09 01:21:12 -06002006 }
Eric Moore635374e2009-03-09 01:21:12 -06002007
2008 ioc_state = mpt2sas_base_get_iocstate(ioc, 0);
2009 if (ioc_state & MPI2_DOORBELL_USED) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05302010 dhsprintk(ioc, printk(MPT2SAS_INFO_FMT "unexpected doorbell "
Eric Moore635374e2009-03-09 01:21:12 -06002011 "active!\n", ioc->name));
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302012 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2013 FORCE_BIG_HAMMER);
2014 rc = SUCCESS;
2015 goto err_out;
Eric Moore635374e2009-03-09 01:21:12 -06002016 }
2017
2018 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
2019 mpt2sas_base_fault_info(ioc, ioc_state &
2020 MPI2_DOORBELL_DATA_MASK);
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302021 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2022 FORCE_BIG_HAMMER);
2023 rc = SUCCESS;
2024 goto err_out;
Eric Moore635374e2009-03-09 01:21:12 -06002025 }
2026
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302027 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
Eric Moore635374e2009-03-09 01:21:12 -06002028 if (!smid) {
2029 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2030 ioc->name, __func__);
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302031 rc = FAILED;
2032 goto err_out;
Eric Moore635374e2009-03-09 01:21:12 -06002033 }
2034
2035 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "sending tm: handle(0x%04x),"
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302036 " task_type(0x%02x), smid(%d)\n", ioc->name, handle, type,
2037 smid_task));
Eric Moore635374e2009-03-09 01:21:12 -06002038 ioc->tm_cmds.status = MPT2_CMD_PENDING;
2039 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2040 ioc->tm_cmds.smid = smid;
2041 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2042 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2043 mpi_request->DevHandle = cpu_to_le16(handle);
2044 mpi_request->TaskType = type;
2045 mpi_request->TaskMID = cpu_to_le16(smid_task);
2046 int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
2047 mpt2sas_scsih_set_tm_flag(ioc, handle);
Kashyap, Desai5b768582009-08-20 13:24:31 +05302048 init_completion(&ioc->tm_cmds.done);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05302049 mpt2sas_base_put_smid_hi_priority(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06002050 timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
Eric Moore635374e2009-03-09 01:21:12 -06002051 if (!(ioc->tm_cmds.status & MPT2_CMD_COMPLETE)) {
2052 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
2053 ioc->name, __func__);
2054 _debug_dump_mf(mpi_request,
2055 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302056 if (!(ioc->tm_cmds.status & MPT2_CMD_RESET)) {
2057 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2058 FORCE_BIG_HAMMER);
2059 rc = SUCCESS;
2060 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2061 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2062 goto err_out;
2063 }
Eric Moore635374e2009-03-09 01:21:12 -06002064 }
2065
2066 if (ioc->tm_cmds.status & MPT2_CMD_REPLY_VALID) {
2067 mpi_reply = ioc->tm_cmds.reply;
2068 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "complete tm: "
2069 "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
2070 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
2071 le32_to_cpu(mpi_reply->IOCLogInfo),
2072 le32_to_cpu(mpi_reply->TerminationCount)));
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302073 if (ioc->logging_level & MPT_DEBUG_TM) {
Eric Moore635374e2009-03-09 01:21:12 -06002074 _scsih_response_code(ioc, mpi_reply->ResponseCode);
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302075 if (mpi_reply->IOCStatus)
2076 _debug_dump_mf(mpi_request,
2077 sizeof(Mpi2SCSITaskManagementRequest_t)/4);
2078 }
Eric Moore635374e2009-03-09 01:21:12 -06002079 }
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302080
2081 /* sanity check:
2082 * Check to see the commands were terminated.
2083 * This is only needed for eh callbacks, hence the scmd check.
2084 */
2085 rc = FAILED;
2086 if (scmd == NULL)
2087 goto bypass_sanity_checks;
2088 switch (type) {
2089 case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
2090 scmd_lookup = _scsih_scsi_lookup_get(ioc, smid_task);
2091 if (scmd_lookup && (scmd_lookup->serial_number ==
2092 scmd->serial_number))
2093 rc = FAILED;
2094 else
2095 rc = SUCCESS;
2096 break;
2097
2098 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
2099 if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
2100 rc = FAILED;
2101 else
2102 rc = SUCCESS;
2103 break;
2104
2105 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
2106 if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
2107 rc = FAILED;
2108 else
2109 rc = SUCCESS;
2110 break;
2111 }
2112
2113 bypass_sanity_checks:
2114
2115 mpt2sas_scsih_clear_tm_flag(ioc, handle);
2116 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
2117 mutex_unlock(&ioc->tm_cmds.mutex);
2118
2119 return rc;
2120
2121 err_out:
2122 mutex_unlock(&ioc->tm_cmds.mutex);
2123 return rc;
Eric Moore635374e2009-03-09 01:21:12 -06002124}
2125
2126/**
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302127 * _scsih_tm_display_info - displays info about the device
2128 * @ioc: per adapter struct
2129 * @scmd: pointer to scsi command object
2130 *
2131 * Called by task management callback handlers.
2132 */
2133static void
2134_scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2135{
2136 struct scsi_target *starget = scmd->device->sdev_target;
2137 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
2138 struct _sas_device *sas_device = NULL;
2139 unsigned long flags;
2140
2141 if (!priv_target)
2142 return;
2143
2144 scsi_print_command(scmd);
2145 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2146 starget_printk(KERN_INFO, starget, "volume handle(0x%04x), "
2147 "volume wwid(0x%016llx)\n",
2148 priv_target->handle,
2149 (unsigned long long)priv_target->sas_address);
2150 } else {
2151 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2152 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2153 priv_target->sas_address);
2154 if (sas_device) {
2155 if (priv_target->flags &
2156 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2157 starget_printk(KERN_INFO, starget,
2158 "volume handle(0x%04x), "
2159 "volume wwid(0x%016llx)\n",
2160 sas_device->volume_handle,
2161 (unsigned long long)sas_device->volume_wwid);
2162 }
2163 starget_printk(KERN_INFO, starget,
2164 "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
2165 sas_device->handle,
2166 (unsigned long long)sas_device->sas_address,
2167 sas_device->phy);
2168 starget_printk(KERN_INFO, starget,
2169 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2170 (unsigned long long)sas_device->enclosure_logical_id,
2171 sas_device->slot);
2172 }
2173 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2174 }
2175}
2176
2177/**
Eric Moored5d135b2009-05-18 13:02:08 -06002178 * _scsih_abort - eh threads main abort routine
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302179 * @scmd: pointer to scsi command object
Eric Moore635374e2009-03-09 01:21:12 -06002180 *
2181 * Returns SUCCESS if command aborted else FAILED
2182 */
2183static int
Eric Moored5d135b2009-05-18 13:02:08 -06002184_scsih_abort(struct scsi_cmnd *scmd)
Eric Moore635374e2009-03-09 01:21:12 -06002185{
2186 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2187 struct MPT2SAS_DEVICE *sas_device_priv_data;
2188 u16 smid;
2189 u16 handle;
2190 int r;
Eric Moore635374e2009-03-09 01:21:12 -06002191
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302192 sdev_printk(KERN_INFO, scmd->device, "attempting task abort! "
2193 "scmd(%p)\n", scmd);
2194 _scsih_tm_display_info(ioc, scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002195
2196 sas_device_priv_data = scmd->device->hostdata;
2197 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302198 sdev_printk(KERN_INFO, scmd->device, "device been deleted! "
2199 "scmd(%p)\n", scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002200 scmd->result = DID_NO_CONNECT << 16;
2201 scmd->scsi_done(scmd);
2202 r = SUCCESS;
2203 goto out;
2204 }
2205
2206 /* search for the command */
2207 smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
2208 if (!smid) {
2209 scmd->result = DID_RESET << 16;
2210 r = SUCCESS;
2211 goto out;
2212 }
2213
2214 /* for hidden raid components and volumes this is not supported */
2215 if (sas_device_priv_data->sas_target->flags &
2216 MPT_TARGET_FLAGS_RAID_COMPONENT ||
2217 sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
2218 scmd->result = DID_RESET << 16;
2219 r = FAILED;
2220 goto out;
2221 }
2222
Kashyap, Desaifa7f3162009-09-23 17:26:58 +05302223 mpt2sas_halt_firmware(ioc);
2224
Eric Moore635374e2009-03-09 01:21:12 -06002225 handle = sas_device_priv_data->sas_target->handle;
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302226 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2227 scmd->device->id, scmd->device->lun,
2228 MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30, scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002229
2230 out:
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302231 sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
2232 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002233 return r;
2234}
2235
Eric Moore635374e2009-03-09 01:21:12 -06002236/**
Eric Moored5d135b2009-05-18 13:02:08 -06002237 * _scsih_dev_reset - eh threads main device reset routine
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302238 * @scmd: pointer to scsi command object
Eric Moore635374e2009-03-09 01:21:12 -06002239 *
2240 * Returns SUCCESS if command aborted else FAILED
2241 */
2242static int
Eric Moored5d135b2009-05-18 13:02:08 -06002243_scsih_dev_reset(struct scsi_cmnd *scmd)
Eric Moore635374e2009-03-09 01:21:12 -06002244{
2245 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2246 struct MPT2SAS_DEVICE *sas_device_priv_data;
2247 struct _sas_device *sas_device;
2248 unsigned long flags;
2249 u16 handle;
2250 int r;
2251
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302252 struct scsi_target *starget = scmd->device->sdev_target;
2253
2254 starget_printk(KERN_INFO, starget, "attempting target reset! "
2255 "scmd(%p)\n", scmd);
2256 _scsih_tm_display_info(ioc, scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002257
2258 sas_device_priv_data = scmd->device->hostdata;
2259 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302260 starget_printk(KERN_INFO, starget, "target been deleted! "
2261 "scmd(%p)\n", scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002262 scmd->result = DID_NO_CONNECT << 16;
2263 scmd->scsi_done(scmd);
2264 r = SUCCESS;
2265 goto out;
2266 }
2267
2268 /* for hidden raid components obtain the volume_handle */
2269 handle = 0;
2270 if (sas_device_priv_data->sas_target->flags &
2271 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2272 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2273 sas_device = _scsih_sas_device_find_by_handle(ioc,
2274 sas_device_priv_data->sas_target->handle);
2275 if (sas_device)
2276 handle = sas_device->volume_handle;
2277 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2278 } else
2279 handle = sas_device_priv_data->sas_target->handle;
2280
2281 if (!handle) {
2282 scmd->result = DID_RESET << 16;
2283 r = FAILED;
2284 goto out;
2285 }
2286
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302287 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2288 scmd->device->id, scmd->device->lun,
2289 MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, scmd);
Eric Moore993e0da2009-05-18 13:00:45 -06002290
2291 out:
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302292 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2293 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
Eric Moore993e0da2009-05-18 13:00:45 -06002294 return r;
2295}
2296
2297/**
Eric Moored5d135b2009-05-18 13:02:08 -06002298 * _scsih_target_reset - eh threads main target reset routine
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302299 * @scmd: pointer to scsi command object
Eric Moore993e0da2009-05-18 13:00:45 -06002300 *
2301 * Returns SUCCESS if command aborted else FAILED
2302 */
2303static int
Eric Moored5d135b2009-05-18 13:02:08 -06002304_scsih_target_reset(struct scsi_cmnd *scmd)
Eric Moore993e0da2009-05-18 13:00:45 -06002305{
2306 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2307 struct MPT2SAS_DEVICE *sas_device_priv_data;
2308 struct _sas_device *sas_device;
2309 unsigned long flags;
2310 u16 handle;
2311 int r;
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302312 struct scsi_target *starget = scmd->device->sdev_target;
Eric Moore993e0da2009-05-18 13:00:45 -06002313
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302314 starget_printk(KERN_INFO, starget, "attempting target reset! "
2315 "scmd(%p)\n", scmd);
2316 _scsih_tm_display_info(ioc, scmd);
Eric Moore993e0da2009-05-18 13:00:45 -06002317
2318 sas_device_priv_data = scmd->device->hostdata;
2319 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302320 starget_printk(KERN_INFO, starget, "target been deleted! "
2321 "scmd(%p)\n", scmd);
Eric Moore993e0da2009-05-18 13:00:45 -06002322 scmd->result = DID_NO_CONNECT << 16;
2323 scmd->scsi_done(scmd);
2324 r = SUCCESS;
2325 goto out;
2326 }
2327
2328 /* for hidden raid components obtain the volume_handle */
2329 handle = 0;
2330 if (sas_device_priv_data->sas_target->flags &
2331 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2332 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2333 sas_device = _scsih_sas_device_find_by_handle(ioc,
2334 sas_device_priv_data->sas_target->handle);
2335 if (sas_device)
2336 handle = sas_device->volume_handle;
2337 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2338 } else
2339 handle = sas_device_priv_data->sas_target->handle;
2340
2341 if (!handle) {
2342 scmd->result = DID_RESET << 16;
2343 r = FAILED;
2344 goto out;
2345 }
2346
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05302347 r = mpt2sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
2348 scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
2349 30, scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002350
2351 out:
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302352 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2353 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
Eric Moore635374e2009-03-09 01:21:12 -06002354 return r;
2355}
2356
2357/**
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05302358 * _scsih_host_reset - eh threads main host reset routine
Kashyap, Desai8e864a82010-06-17 13:48:46 +05302359 * @scmd: pointer to scsi command object
Eric Moore635374e2009-03-09 01:21:12 -06002360 *
2361 * Returns SUCCESS if command aborted else FAILED
2362 */
2363static int
Eric Moored5d135b2009-05-18 13:02:08 -06002364_scsih_host_reset(struct scsi_cmnd *scmd)
Eric Moore635374e2009-03-09 01:21:12 -06002365{
2366 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2367 int r, retval;
2368
2369 printk(MPT2SAS_INFO_FMT "attempting host reset! scmd(%p)\n",
2370 ioc->name, scmd);
2371 scsi_print_command(scmd);
2372
2373 retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
2374 FORCE_BIG_HAMMER);
2375 r = (retval < 0) ? FAILED : SUCCESS;
2376 printk(MPT2SAS_INFO_FMT "host reset: %s scmd(%p)\n",
2377 ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2378
2379 return r;
2380}
2381
2382/**
2383 * _scsih_fw_event_add - insert and queue up fw_event
2384 * @ioc: per adapter object
2385 * @fw_event: object describing the event
2386 * Context: This function will acquire ioc->fw_event_lock.
2387 *
2388 * This adds the firmware event object into link list, then queues it up to
2389 * be processed from user context.
2390 *
2391 * Return nothing.
2392 */
2393static void
2394_scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2395{
2396 unsigned long flags;
2397
2398 if (ioc->firmware_event_thread == NULL)
2399 return;
2400
2401 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2402 list_add_tail(&fw_event->list, &ioc->fw_event_list);
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05302403 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2404 queue_delayed_work(ioc->firmware_event_thread,
2405 &fw_event->delayed_work, 0);
Eric Moore635374e2009-03-09 01:21:12 -06002406 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2407}
2408
2409/**
2410 * _scsih_fw_event_free - delete fw_event
2411 * @ioc: per adapter object
2412 * @fw_event: object describing the event
2413 * Context: This function will acquire ioc->fw_event_lock.
2414 *
2415 * This removes firmware event object from link list, frees associated memory.
2416 *
2417 * Return nothing.
2418 */
2419static void
2420_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2421 *fw_event)
2422{
2423 unsigned long flags;
2424
2425 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2426 list_del(&fw_event->list);
2427 kfree(fw_event->event_data);
2428 kfree(fw_event);
2429 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2430}
2431
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05302432
Eric Moore635374e2009-03-09 01:21:12 -06002433/**
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05302434 * _scsih_queue_rescan - queue a topology rescan from user context
Eric Moore635374e2009-03-09 01:21:12 -06002435 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06002436 *
2437 * Return nothing.
2438 */
2439static void
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05302440_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc)
Eric Moore635374e2009-03-09 01:21:12 -06002441{
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05302442 struct fw_event_work *fw_event;
2443
2444 if (ioc->wait_for_port_enable_to_complete)
2445 return;
2446 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
2447 if (!fw_event)
2448 return;
2449 fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET;
2450 fw_event->ioc = ioc;
2451 _scsih_fw_event_add(ioc, fw_event);
2452}
2453
2454/**
2455 * _scsih_fw_event_cleanup_queue - cleanup event queue
2456 * @ioc: per adapter object
2457 *
2458 * Walk the firmware event queue, either killing timers, or waiting
2459 * for outstanding events to complete
2460 *
2461 * Return nothing.
2462 */
2463static void
2464_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
2465{
2466 struct fw_event_work *fw_event, *next;
2467
2468 if (list_empty(&ioc->fw_event_list) ||
2469 !ioc->firmware_event_thread || in_interrupt())
Eric Moore635374e2009-03-09 01:21:12 -06002470 return;
2471
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05302472 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
2473 if (cancel_delayed_work(&fw_event->delayed_work)) {
2474 _scsih_fw_event_free(ioc, fw_event);
2475 continue;
2476 }
2477 fw_event->cancel_pending_work = 1;
2478 }
Eric Moore635374e2009-03-09 01:21:12 -06002479}
2480
Eric Moore635374e2009-03-09 01:21:12 -06002481/**
2482 * _scsih_ublock_io_device - set the device state to SDEV_RUNNING
2483 * @ioc: per adapter object
2484 * @handle: device handle
2485 *
2486 * During device pull we need to appropiately set the sdev state.
2487 */
2488static void
2489_scsih_ublock_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2490{
2491 struct MPT2SAS_DEVICE *sas_device_priv_data;
2492 struct scsi_device *sdev;
2493
2494 shost_for_each_device(sdev, ioc->shost) {
2495 sas_device_priv_data = sdev->hostdata;
2496 if (!sas_device_priv_data)
2497 continue;
2498 if (!sas_device_priv_data->block)
2499 continue;
2500 if (sas_device_priv_data->sas_target->handle == handle) {
2501 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2502 MPT2SAS_INFO_FMT "SDEV_RUNNING: "
2503 "handle(0x%04x)\n", ioc->name, handle));
2504 sas_device_priv_data->block = 0;
Kashyap, Desai34a03be2009-08-20 13:23:19 +05302505 scsi_internal_device_unblock(sdev);
Eric Moore635374e2009-03-09 01:21:12 -06002506 }
2507 }
2508}
2509
2510/**
2511 * _scsih_block_io_device - set the device state to SDEV_BLOCK
2512 * @ioc: per adapter object
2513 * @handle: device handle
2514 *
2515 * During device pull we need to appropiately set the sdev state.
2516 */
2517static void
2518_scsih_block_io_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2519{
2520 struct MPT2SAS_DEVICE *sas_device_priv_data;
2521 struct scsi_device *sdev;
2522
2523 shost_for_each_device(sdev, ioc->shost) {
2524 sas_device_priv_data = sdev->hostdata;
2525 if (!sas_device_priv_data)
2526 continue;
2527 if (sas_device_priv_data->block)
2528 continue;
2529 if (sas_device_priv_data->sas_target->handle == handle) {
2530 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2531 MPT2SAS_INFO_FMT "SDEV_BLOCK: "
2532 "handle(0x%04x)\n", ioc->name, handle));
2533 sas_device_priv_data->block = 1;
Kashyap, Desai34a03be2009-08-20 13:23:19 +05302534 scsi_internal_device_block(sdev);
Eric Moore635374e2009-03-09 01:21:12 -06002535 }
2536 }
2537}
2538
2539/**
2540 * _scsih_block_io_to_children_attached_to_ex
2541 * @ioc: per adapter object
2542 * @sas_expander: the sas_device object
2543 *
2544 * This routine set sdev state to SDEV_BLOCK for all devices
2545 * attached to this expander. This function called when expander is
2546 * pulled.
2547 */
2548static void
2549_scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
2550 struct _sas_node *sas_expander)
2551{
2552 struct _sas_port *mpt2sas_port;
2553 struct _sas_device *sas_device;
2554 struct _sas_node *expander_sibling;
2555 unsigned long flags;
2556
2557 if (!sas_expander)
2558 return;
2559
2560 list_for_each_entry(mpt2sas_port,
2561 &sas_expander->sas_port_list, port_list) {
2562 if (mpt2sas_port->remote_identify.device_type ==
2563 SAS_END_DEVICE) {
2564 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2565 sas_device =
2566 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
2567 mpt2sas_port->remote_identify.sas_address);
2568 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2569 if (!sas_device)
2570 continue;
2571 _scsih_block_io_device(ioc, sas_device->handle);
2572 }
2573 }
2574
2575 list_for_each_entry(mpt2sas_port,
2576 &sas_expander->sas_port_list, port_list) {
2577
2578 if (mpt2sas_port->remote_identify.device_type ==
2579 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
2580 mpt2sas_port->remote_identify.device_type ==
2581 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
2582
2583 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2584 expander_sibling =
2585 mpt2sas_scsih_expander_find_by_sas_address(
2586 ioc, mpt2sas_port->remote_identify.sas_address);
2587 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2588 _scsih_block_io_to_children_attached_to_ex(ioc,
2589 expander_sibling);
2590 }
2591 }
2592}
2593
2594/**
2595 * _scsih_block_io_to_children_attached_directly
2596 * @ioc: per adapter object
2597 * @event_data: topology change event data
2598 *
2599 * This routine set sdev state to SDEV_BLOCK for all devices
2600 * direct attached during device pull.
2601 */
2602static void
2603_scsih_block_io_to_children_attached_directly(struct MPT2SAS_ADAPTER *ioc,
2604 Mpi2EventDataSasTopologyChangeList_t *event_data)
2605{
2606 int i;
2607 u16 handle;
2608 u16 reason_code;
2609 u8 phy_number;
2610
2611 for (i = 0; i < event_data->NumEntries; i++) {
2612 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2613 if (!handle)
2614 continue;
2615 phy_number = event_data->StartPhyNum + i;
2616 reason_code = event_data->PHY[i].PhyStatus &
2617 MPI2_EVENT_SAS_TOPO_RC_MASK;
2618 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
2619 _scsih_block_io_device(ioc, handle);
2620 }
2621}
2622
2623/**
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302624 * _scsih_tm_tr_send - send task management request
2625 * @ioc: per adapter object
2626 * @handle: device handle
2627 * Context: interrupt time.
2628 *
2629 * This code is to initiate the device removal handshake protocal
2630 * with controller firmware. This function will issue target reset
2631 * using high priority request queue. It will send a sas iounit
2632 * controll request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
2633 *
2634 * This is designed to send muliple task management request at the same
2635 * time to the fifo. If the fifo is full, we will append the request,
2636 * and process it in a future completion.
2637 */
2638static void
2639_scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2640{
2641 Mpi2SCSITaskManagementRequest_t *mpi_request;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302642 u16 smid;
2643 struct _sas_device *sas_device;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302644 struct MPT2SAS_TARGET *sas_target_priv_data;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302645 unsigned long flags;
2646 struct _tr_list *delayed_tr;
2647
Eric Moore3cb54692010-07-08 14:44:34 -06002648 if (ioc->shost_recovery || ioc->remove_host ||
2649 ioc->pci_error_recovery) {
Kashyap, Desai1278b112010-03-09 17:34:13 +05302650 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2651 "progress!\n", __func__, ioc->name));
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302652 return;
2653 }
2654
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302655 /* if PD, then return */
2656 if (test_bit(handle, ioc->pd_handles))
2657 return;
2658
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302659 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2660 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302661 if (sas_device && sas_device->starget &&
2662 sas_device->starget->hostdata) {
2663 sas_target_priv_data = sas_device->starget->hostdata;
2664 sas_target_priv_data->deleted = 1;
2665 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2666 "setting delete flag: handle(0x%04x), "
2667 "sas_addr(0x%016llx)\n", ioc->name, handle,
2668 (unsigned long long) sas_device->sas_address));
Kashyap, Desai1278b112010-03-09 17:34:13 +05302669 }
2670 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302671
2672 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
2673 if (!smid) {
2674 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2675 if (!delayed_tr)
2676 return;
2677 INIT_LIST_HEAD(&delayed_tr->list);
2678 delayed_tr->handle = handle;
Kashyap, Desai1278b112010-03-09 17:34:13 +05302679 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
2680 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2681 "DELAYED:tr:handle(0x%04x), (open)\n",
2682 ioc->name, handle));
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302683 return;
2684 }
2685
Kashyap, Desai1278b112010-03-09 17:34:13 +05302686 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
2687 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
2688 ioc->tm_tr_cb_idx));
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302689 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2690 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2691 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2692 mpi_request->DevHandle = cpu_to_le16(handle);
2693 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302694 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2695}
2696
2697
2698
2699/**
2700 * _scsih_sas_control_complete - completion routine
2701 * @ioc: per adapter object
2702 * @smid: system request message index
2703 * @msix_index: MSIX table index supplied by the OS
2704 * @reply: reply message frame(lower 32bit addr)
2705 * Context: interrupt time.
2706 *
2707 * This is the sas iounit controll completion routine.
2708 * This code is part of the code to initiate the device removal
2709 * handshake protocal with controller firmware.
2710 *
2711 * Return 1 meaning mf should be freed from _base_interrupt
2712 * 0 means the mf is freed from this function.
2713 */
2714static u8
2715_scsih_sas_control_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
2716 u8 msix_index, u32 reply)
2717{
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302718 Mpi2SasIoUnitControlReply_t *mpi_reply =
2719 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2720
Kashyap, Desai1278b112010-03-09 17:34:13 +05302721 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2722 "sc_complete:handle(0x%04x), (open) "
2723 "smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
2724 ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
2725 le16_to_cpu(mpi_reply->IOCStatus),
2726 le32_to_cpu(mpi_reply->IOCLogInfo)));
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302727 return 1;
2728}
2729
2730/**
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302731 * _scsih_tm_tr_volume_send - send target reset request for volumes
2732 * @ioc: per adapter object
2733 * @handle: device handle
2734 * Context: interrupt time.
2735 *
2736 * This is designed to send muliple task management request at the same
2737 * time to the fifo. If the fifo is full, we will append the request,
2738 * and process it in a future completion.
2739 */
2740static void
2741_scsih_tm_tr_volume_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
2742{
2743 Mpi2SCSITaskManagementRequest_t *mpi_request;
2744 u16 smid;
2745 struct _tr_list *delayed_tr;
2746
Eric Moore3cb54692010-07-08 14:44:34 -06002747 if (ioc->shost_recovery || ioc->remove_host ||
2748 ioc->pci_error_recovery) {
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302749 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2750 "progress!\n", __func__, ioc->name));
2751 return;
2752 }
2753
2754 smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
2755 if (!smid) {
2756 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
2757 if (!delayed_tr)
2758 return;
2759 INIT_LIST_HEAD(&delayed_tr->list);
2760 delayed_tr->handle = handle;
2761 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
2762 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2763 "DELAYED:tr:handle(0x%04x), (open)\n",
2764 ioc->name, handle));
2765 return;
2766 }
2767
2768 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
2769 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid,
2770 ioc->tm_tr_volume_cb_idx));
2771 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
2772 memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
2773 mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
2774 mpi_request->DevHandle = cpu_to_le16(handle);
2775 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
2776 mpt2sas_base_put_smid_hi_priority(ioc, smid);
2777}
2778
2779/**
2780 * _scsih_tm_volume_tr_complete - target reset completion
2781 * @ioc: per adapter object
2782 * @smid: system request message index
2783 * @msix_index: MSIX table index supplied by the OS
2784 * @reply: reply message frame(lower 32bit addr)
2785 * Context: interrupt time.
2786 *
2787 * Return 1 meaning mf should be freed from _base_interrupt
2788 * 0 means the mf is freed from this function.
2789 */
2790static u8
2791_scsih_tm_volume_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid,
2792 u8 msix_index, u32 reply)
2793{
2794 u16 handle;
2795 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
2796 Mpi2SCSITaskManagementReply_t *mpi_reply =
2797 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2798
Eric Moore3cb54692010-07-08 14:44:34 -06002799 if (ioc->shost_recovery || ioc->remove_host ||
2800 ioc->pci_error_recovery) {
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302801 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2802 "progress!\n", __func__, ioc->name));
2803 return 1;
2804 }
2805
2806 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
2807 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2808 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2809 dewtprintk(ioc, printk("spurious interrupt: "
2810 "handle(0x%04x:0x%04x), smid(%d)!!!\n", handle,
2811 le16_to_cpu(mpi_reply->DevHandle), smid));
2812 return 0;
2813 }
2814
2815 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2816 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2817 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2818 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2819 le32_to_cpu(mpi_reply->IOCLogInfo),
2820 le32_to_cpu(mpi_reply->TerminationCount)));
2821
2822 return _scsih_check_for_pending_tm(ioc, smid);
2823}
2824
2825/**
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302826 * _scsih_tm_tr_complete -
2827 * @ioc: per adapter object
2828 * @smid: system request message index
2829 * @msix_index: MSIX table index supplied by the OS
2830 * @reply: reply message frame(lower 32bit addr)
2831 * Context: interrupt time.
2832 *
2833 * This is the target reset completion routine.
2834 * This code is part of the code to initiate the device removal
2835 * handshake protocal with controller firmware.
2836 * It will send a sas iounit controll request (MPI2_SAS_OP_REMOVE_DEVICE)
2837 *
2838 * Return 1 meaning mf should be freed from _base_interrupt
2839 * 0 means the mf is freed from this function.
2840 */
2841static u8
2842_scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
2843 u32 reply)
2844{
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302845 u16 handle;
Kashyap, Desai1278b112010-03-09 17:34:13 +05302846 Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302847 Mpi2SCSITaskManagementReply_t *mpi_reply =
2848 mpt2sas_base_get_reply_virt_addr(ioc, reply);
2849 Mpi2SasIoUnitControlRequest_t *mpi_request;
2850 u16 smid_sas_ctrl;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302851
Eric Moore3cb54692010-07-08 14:44:34 -06002852 if (ioc->shost_recovery || ioc->remove_host ||
2853 ioc->pci_error_recovery) {
Kashyap, Desai1278b112010-03-09 17:34:13 +05302854 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in "
2855 "progress!\n", __func__, ioc->name));
2856 return 1;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302857 }
2858
Kashyap, Desai1278b112010-03-09 17:34:13 +05302859 mpi_request_tm = mpt2sas_base_get_msg_frame(ioc, smid);
2860 handle = le16_to_cpu(mpi_request_tm->DevHandle);
2861 if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
2862 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "spurious interrupt: "
2863 "handle(0x%04x:0x%04x), smid(%d)!!!\n", ioc->name, handle,
2864 le16_to_cpu(mpi_reply->DevHandle), smid));
2865 return 0;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302866 }
2867
Kashyap, Desai1278b112010-03-09 17:34:13 +05302868 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
2869 "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
2870 "loginfo(0x%08x), completed(%d)\n", ioc->name,
2871 handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
2872 le32_to_cpu(mpi_reply->IOCLogInfo),
2873 le32_to_cpu(mpi_reply->TerminationCount)));
2874
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302875 smid_sas_ctrl = mpt2sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
2876 if (!smid_sas_ctrl) {
2877 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
2878 ioc->name, __func__);
Kashyap, Desai1278b112010-03-09 17:34:13 +05302879 return 1;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302880 }
2881
Kashyap, Desai1278b112010-03-09 17:34:13 +05302882 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "sc_send:handle(0x%04x), "
2883 "(open), smid(%d), cb(%d)\n", ioc->name, handle, smid_sas_ctrl,
2884 ioc->tm_sas_control_cb_idx));
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302885 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid_sas_ctrl);
2886 memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
2887 mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
2888 mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
Kashyap, Desai1278b112010-03-09 17:34:13 +05302889 mpi_request->DevHandle = mpi_request_tm->DevHandle;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302890 mpt2sas_base_put_smid_default(ioc, smid_sas_ctrl);
Kashyap, Desai1278b112010-03-09 17:34:13 +05302891
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302892 return _scsih_check_for_pending_tm(ioc, smid);
2893}
2894
2895/**
2896 * _scsih_check_for_pending_tm - check for pending task management
2897 * @ioc: per adapter object
2898 * @smid: system request message index
2899 *
2900 * This will check delayed target reset list, and feed the
2901 * next reqeust.
2902 *
2903 * Return 1 meaning mf should be freed from _base_interrupt
2904 * 0 means the mf is freed from this function.
2905 */
2906static u8
2907_scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid)
2908{
2909 struct _tr_list *delayed_tr;
2910
2911 if (!list_empty(&ioc->delayed_tr_volume_list)) {
2912 delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
2913 struct _tr_list, list);
2914 mpt2sas_base_free_smid(ioc, smid);
2915 _scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
2916 list_del(&delayed_tr->list);
2917 kfree(delayed_tr);
2918 return 0;
2919 }
2920
Kashyap, Desai1278b112010-03-09 17:34:13 +05302921 if (!list_empty(&ioc->delayed_tr_list)) {
2922 delayed_tr = list_entry(ioc->delayed_tr_list.next,
2923 struct _tr_list, list);
2924 mpt2sas_base_free_smid(ioc, smid);
2925 _scsih_tm_tr_send(ioc, delayed_tr->handle);
2926 list_del(&delayed_tr->list);
2927 kfree(delayed_tr);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302928 return 0;
Kashyap, Desai1278b112010-03-09 17:34:13 +05302929 }
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05302930
Kashyap, Desai1278b112010-03-09 17:34:13 +05302931 return 1;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302932}
2933
2934/**
Eric Moore635374e2009-03-09 01:21:12 -06002935 * _scsih_check_topo_delete_events - sanity check on topo events
2936 * @ioc: per adapter object
2937 * @event_data: the event data payload
2938 *
2939 * This routine added to better handle cable breaker.
2940 *
2941 * This handles the case where driver recieves multiple expander
2942 * add and delete events in a single shot. When there is a delete event
2943 * the routine will void any pending add events waiting in the event queue.
2944 *
2945 * Return nothing.
2946 */
2947static void
2948_scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc,
2949 Mpi2EventDataSasTopologyChangeList_t *event_data)
2950{
2951 struct fw_event_work *fw_event;
2952 Mpi2EventDataSasTopologyChangeList_t *local_event_data;
2953 u16 expander_handle;
2954 struct _sas_node *sas_expander;
2955 unsigned long flags;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05302956 int i, reason_code;
2957 u16 handle;
2958
2959 for (i = 0 ; i < event_data->NumEntries; i++) {
2960 if (event_data->PHY[i].PhyStatus &
2961 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT)
2962 continue;
2963 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
2964 if (!handle)
2965 continue;
2966 reason_code = event_data->PHY[i].PhyStatus &
2967 MPI2_EVENT_SAS_TOPO_RC_MASK;
2968 if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
2969 _scsih_tm_tr_send(ioc, handle);
2970 }
Eric Moore635374e2009-03-09 01:21:12 -06002971
2972 expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
2973 if (expander_handle < ioc->sas_hba.num_phys) {
2974 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2975 return;
2976 }
2977
2978 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING
2979 || event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING) {
2980 spin_lock_irqsave(&ioc->sas_node_lock, flags);
2981 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
2982 expander_handle);
2983 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
2984 _scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
2985 } else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
2986 _scsih_block_io_to_children_attached_directly(ioc, event_data);
2987
2988 if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
2989 return;
2990
2991 /* mark ignore flag for pending events */
2992 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2993 list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
2994 if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
2995 fw_event->ignore)
2996 continue;
2997 local_event_data = fw_event->event_data;
2998 if (local_event_data->ExpStatus ==
2999 MPI2_EVENT_SAS_TOPO_ES_ADDED ||
3000 local_event_data->ExpStatus ==
3001 MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
3002 if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
3003 expander_handle) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05303004 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
Eric Moore635374e2009-03-09 01:21:12 -06003005 "setting ignoring flag\n", ioc->name));
3006 fw_event->ignore = 1;
3007 }
3008 }
3009 }
3010 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
3011}
3012
3013/**
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05303014 * _scsih_set_volume_delete_flag - setting volume delete flag
3015 * @ioc: per adapter object
3016 * @handle: device handle
3017 *
3018 * This
3019 * Return nothing.
3020 */
3021static void
3022_scsih_set_volume_delete_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3023{
3024 struct _raid_device *raid_device;
3025 struct MPT2SAS_TARGET *sas_target_priv_data;
3026 unsigned long flags;
3027
3028 spin_lock_irqsave(&ioc->raid_device_lock, flags);
3029 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
3030 if (raid_device && raid_device->starget &&
3031 raid_device->starget->hostdata) {
3032 sas_target_priv_data =
3033 raid_device->starget->hostdata;
3034 sas_target_priv_data->deleted = 1;
3035 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3036 "setting delete flag: handle(0x%04x), "
3037 "wwid(0x%016llx)\n", ioc->name, handle,
3038 (unsigned long long) raid_device->wwid));
3039 }
3040 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
3041}
3042
3043/**
3044 * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
3045 * @handle: input handle
3046 * @a: handle for volume a
3047 * @b: handle for volume b
3048 *
3049 * IR firmware only supports two raid volumes. The purpose of this
3050 * routine is to set the volume handle in either a or b. When the given
3051 * input handle is non-zero, or when a and b have not been set before.
3052 */
3053static void
3054_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
3055{
3056 if (!handle || handle == *a || handle == *b)
3057 return;
3058 if (!*a)
3059 *a = handle;
3060 else if (!*b)
3061 *b = handle;
3062}
3063
3064/**
3065 * _scsih_check_ir_config_unhide_events - check for UNHIDE events
3066 * @ioc: per adapter object
3067 * @event_data: the event data payload
3068 * Context: interrupt time.
3069 *
3070 * This routine will send target reset to volume, followed by target
3071 * resets to the PDs. This is called when a PD has been removed, or
3072 * volume has been deleted or removed. When the target reset is sent
3073 * to volume, the PD target resets need to be queued to start upon
3074 * completion of the volume target reset.
3075 *
3076 * Return nothing.
3077 */
3078static void
3079_scsih_check_ir_config_unhide_events(struct MPT2SAS_ADAPTER *ioc,
3080 Mpi2EventDataIrConfigChangeList_t *event_data)
3081{
3082 Mpi2EventIrConfigElement_t *element;
3083 int i;
3084 u16 handle, volume_handle, a, b;
3085 struct _tr_list *delayed_tr;
3086
3087 a = 0;
3088 b = 0;
3089
3090 /* Volume Resets for Deleted or Removed */
3091 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3092 for (i = 0; i < event_data->NumElements; i++, element++) {
3093 if (element->ReasonCode ==
3094 MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
3095 element->ReasonCode ==
3096 MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
3097 volume_handle = le16_to_cpu(element->VolDevHandle);
3098 _scsih_set_volume_delete_flag(ioc, volume_handle);
3099 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3100 }
3101 }
3102
3103 /* Volume Resets for UNHIDE events */
3104 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3105 for (i = 0; i < event_data->NumElements; i++, element++) {
3106 if (le32_to_cpu(event_data->Flags) &
3107 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
3108 continue;
3109 if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
3110 volume_handle = le16_to_cpu(element->VolDevHandle);
3111 _scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
3112 }
3113 }
3114
3115 if (a)
3116 _scsih_tm_tr_volume_send(ioc, a);
3117 if (b)
3118 _scsih_tm_tr_volume_send(ioc, b);
3119
3120 /* PD target resets */
3121 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
3122 for (i = 0; i < event_data->NumElements; i++, element++) {
3123 if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
3124 continue;
3125 handle = le16_to_cpu(element->PhysDiskDevHandle);
3126 volume_handle = le16_to_cpu(element->VolDevHandle);
3127 clear_bit(handle, ioc->pd_handles);
3128 if (!volume_handle)
3129 _scsih_tm_tr_send(ioc, handle);
3130 else if (volume_handle == a || volume_handle == b) {
3131 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3132 BUG_ON(!delayed_tr);
3133 INIT_LIST_HEAD(&delayed_tr->list);
3134 delayed_tr->handle = handle;
3135 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3136 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3137 "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
3138 handle));
3139 } else
3140 _scsih_tm_tr_send(ioc, handle);
3141 }
3142}
3143
3144
3145/**
3146 * _scsih_check_volume_delete_events - set delete flag for volumes
3147 * @ioc: per adapter object
3148 * @event_data: the event data payload
3149 * Context: interrupt time.
3150 *
3151 * This will handle the case when the cable connected to entire volume is
3152 * pulled. We will take care of setting the deleted flag so normal IO will
3153 * not be sent.
3154 *
3155 * Return nothing.
3156 */
3157static void
3158_scsih_check_volume_delete_events(struct MPT2SAS_ADAPTER *ioc,
3159 Mpi2EventDataIrVolume_t *event_data)
3160{
3161 u32 state;
3162
3163 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
3164 return;
3165 state = le32_to_cpu(event_data->NewValue);
3166 if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
3167 MPI2_RAID_VOL_STATE_FAILED)
3168 _scsih_set_volume_delete_flag(ioc,
3169 le16_to_cpu(event_data->VolDevHandle));
3170}
3171
3172/**
Eric Moore635374e2009-03-09 01:21:12 -06003173 * _scsih_flush_running_cmds - completing outstanding commands.
3174 * @ioc: per adapter object
3175 *
3176 * The flushing out of all pending scmd commands following host reset,
3177 * where all IO is dropped to the floor.
3178 *
3179 * Return nothing.
3180 */
3181static void
3182_scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc)
3183{
3184 struct scsi_cmnd *scmd;
3185 u16 smid;
3186 u16 count = 0;
3187
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05303188 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
3189 scmd = _scsih_scsi_lookup_get(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003190 if (!scmd)
3191 continue;
3192 count++;
3193 mpt2sas_base_free_smid(ioc, smid);
3194 scsi_dma_unmap(scmd);
Eric Moore3cb54692010-07-08 14:44:34 -06003195 if (ioc->pci_error_recovery)
3196 scmd->result = DID_NO_CONNECT << 16;
3197 else
3198 scmd->result = DID_RESET << 16;
Eric Moore635374e2009-03-09 01:21:12 -06003199 scmd->scsi_done(scmd);
3200 }
3201 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "completing %d cmds\n",
3202 ioc->name, count));
3203}
3204
3205/**
Eric Moore3c621b32009-05-18 12:59:41 -06003206 * _scsih_setup_eedp - setup MPI request for EEDP transfer
3207 * @scmd: pointer to scsi command object
3208 * @mpi_request: pointer to the SCSI_IO reqest message frame
3209 *
3210 * Supporting protection 1 and 3.
3211 *
3212 * Returns nothing
3213 */
3214static void
3215_scsih_setup_eedp(struct scsi_cmnd *scmd, Mpi2SCSIIORequest_t *mpi_request)
3216{
3217 u16 eedp_flags;
3218 unsigned char prot_op = scsi_get_prot_op(scmd);
3219 unsigned char prot_type = scsi_get_prot_type(scmd);
3220
Eric Moored334aa72010-04-22 10:47:40 -06003221 if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
Eric Moore3c621b32009-05-18 12:59:41 -06003222 return;
3223
3224 if (prot_op == SCSI_PROT_READ_STRIP)
3225 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
3226 else if (prot_op == SCSI_PROT_WRITE_INSERT)
3227 eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
3228 else
3229 return;
3230
Eric Moore3c621b32009-05-18 12:59:41 -06003231 switch (prot_type) {
3232 case SCSI_PROT_DIF_TYPE1:
3233
3234 /*
3235 * enable ref/guard checking
3236 * auto increment ref tag
3237 */
Kashyap, Desai463217b2009-10-05 15:53:06 +05303238 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
Eric Moore3c621b32009-05-18 12:59:41 -06003239 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3240 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
3241 mpi_request->CDB.EEDP32.PrimaryReferenceTag =
3242 cpu_to_be32(scsi_get_lba(scmd));
Eric Moored334aa72010-04-22 10:47:40 -06003243 break;
Eric Moore3c621b32009-05-18 12:59:41 -06003244
Eric Moored334aa72010-04-22 10:47:40 -06003245 case SCSI_PROT_DIF_TYPE2:
3246
3247 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
3248 MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
3249 MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
Eric Moore3c621b32009-05-18 12:59:41 -06003250 break;
3251
3252 case SCSI_PROT_DIF_TYPE3:
3253
3254 /*
3255 * enable guard checking
3256 */
Kashyap, Desai463217b2009-10-05 15:53:06 +05303257 eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
Eric Moore3c621b32009-05-18 12:59:41 -06003258 break;
3259 }
Kashyap, Desai463217b2009-10-05 15:53:06 +05303260 mpi_request->EEDPBlockSize = cpu_to_le32(scmd->device->sector_size);
3261 mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
Eric Moore3c621b32009-05-18 12:59:41 -06003262}
3263
3264/**
3265 * _scsih_eedp_error_handling - return sense code for EEDP errors
3266 * @scmd: pointer to scsi command object
3267 * @ioc_status: ioc status
3268 *
3269 * Returns nothing
3270 */
3271static void
3272_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
3273{
3274 u8 ascq;
3275 u8 sk;
3276 u8 host_byte;
3277
3278 switch (ioc_status) {
3279 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3280 ascq = 0x01;
3281 break;
3282 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3283 ascq = 0x02;
3284 break;
3285 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3286 ascq = 0x03;
3287 break;
3288 default:
3289 ascq = 0x00;
3290 break;
3291 }
3292
3293 if (scmd->sc_data_direction == DMA_TO_DEVICE) {
3294 sk = ILLEGAL_REQUEST;
3295 host_byte = DID_ABORT;
3296 } else {
3297 sk = ABORTED_COMMAND;
3298 host_byte = DID_OK;
3299 }
3300
3301 scsi_build_sense_buffer(0, scmd->sense_buffer, sk, 0x10, ascq);
3302 scmd->result = DRIVER_SENSE << 24 | (host_byte << 16) |
3303 SAM_STAT_CHECK_CONDITION;
3304}
3305
3306/**
Eric Moored5d135b2009-05-18 13:02:08 -06003307 * _scsih_qcmd - main scsi request entry point
Eric Moore635374e2009-03-09 01:21:12 -06003308 * @scmd: pointer to scsi command object
3309 * @done: function pointer to be invoked on completion
3310 *
3311 * The callback index is set inside `ioc->scsi_io_cb_idx`.
3312 *
3313 * Returns 0 on success. If there's a failure, return either:
3314 * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
3315 * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
3316 */
3317static int
Eric Moored5d135b2009-05-18 13:02:08 -06003318_scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
Eric Moore635374e2009-03-09 01:21:12 -06003319{
3320 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
3321 struct MPT2SAS_DEVICE *sas_device_priv_data;
3322 struct MPT2SAS_TARGET *sas_target_priv_data;
3323 Mpi2SCSIIORequest_t *mpi_request;
3324 u32 mpi_control;
3325 u16 smid;
Eric Moore635374e2009-03-09 01:21:12 -06003326
3327 scmd->scsi_done = done;
3328 sas_device_priv_data = scmd->device->hostdata;
Kashyap, Desai130b9582010-04-08 17:54:32 +05303329 if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
Eric Moore635374e2009-03-09 01:21:12 -06003330 scmd->result = DID_NO_CONNECT << 16;
3331 scmd->scsi_done(scmd);
3332 return 0;
3333 }
3334
Eric Moore3cb54692010-07-08 14:44:34 -06003335 if (ioc->pci_error_recovery) {
3336 scmd->result = DID_NO_CONNECT << 16;
3337 scmd->scsi_done(scmd);
3338 return 0;
3339 }
3340
Eric Moore635374e2009-03-09 01:21:12 -06003341 sas_target_priv_data = sas_device_priv_data->sas_target;
Kashyap, Desai130b9582010-04-08 17:54:32 +05303342 /* invalid device handle */
3343 if (sas_target_priv_data->handle == MPT2SAS_INVALID_DEVICE_HANDLE) {
Eric Moore635374e2009-03-09 01:21:12 -06003344 scmd->result = DID_NO_CONNECT << 16;
3345 scmd->scsi_done(scmd);
3346 return 0;
3347 }
3348
Kashyap, Desai130b9582010-04-08 17:54:32 +05303349 /* host recovery or link resets sent via IOCTLs */
3350 if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
Eric Moore635374e2009-03-09 01:21:12 -06003351 return SCSI_MLQUEUE_HOST_BUSY;
Uwe Kleine-König65155b32010-06-11 12:17:01 +02003352 /* device busy with task management */
Kashyap, Desai130b9582010-04-08 17:54:32 +05303353 else if (sas_device_priv_data->block || sas_target_priv_data->tm_busy)
3354 return SCSI_MLQUEUE_DEVICE_BUSY;
3355 /* device has been deleted */
3356 else if (sas_target_priv_data->deleted) {
3357 scmd->result = DID_NO_CONNECT << 16;
3358 scmd->scsi_done(scmd);
3359 return 0;
3360 }
Eric Moore635374e2009-03-09 01:21:12 -06003361
3362 if (scmd->sc_data_direction == DMA_FROM_DEVICE)
3363 mpi_control = MPI2_SCSIIO_CONTROL_READ;
3364 else if (scmd->sc_data_direction == DMA_TO_DEVICE)
3365 mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
3366 else
3367 mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
3368
3369 /* set tags */
3370 if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
3371 if (scmd->device->tagged_supported) {
3372 if (scmd->device->ordered_tags)
3373 mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
3374 else
3375 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
3376 } else
3377/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
3378/* mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
3379 */
3380 mpi_control |= (0x500);
3381
3382 } else
3383 mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
Kashyap, Desai3ed21522010-02-17 16:08:36 +05303384 /* Make sure Device is not raid volume */
3385 if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
Eric Moored334aa72010-04-22 10:47:40 -06003386 sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
Eric Moore635374e2009-03-09 01:21:12 -06003387 mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
3388
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05303389 smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
Eric Moore635374e2009-03-09 01:21:12 -06003390 if (!smid) {
3391 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
3392 ioc->name, __func__);
3393 goto out;
3394 }
3395 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3396 memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
Eric Moore3c621b32009-05-18 12:59:41 -06003397 _scsih_setup_eedp(scmd, mpi_request);
Eric Moored334aa72010-04-22 10:47:40 -06003398 if (scmd->cmd_len == 32)
3399 mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
Eric Moore635374e2009-03-09 01:21:12 -06003400 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3401 if (sas_device_priv_data->sas_target->flags &
3402 MPT_TARGET_FLAGS_RAID_COMPONENT)
3403 mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
3404 else
3405 mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
3406 mpi_request->DevHandle =
3407 cpu_to_le16(sas_device_priv_data->sas_target->handle);
3408 mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
3409 mpi_request->Control = cpu_to_le32(mpi_control);
3410 mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
3411 mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
3412 mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
3413 mpi_request->SenseBufferLowAddress =
Kashyap, Desaiec9472c2009-09-23 17:34:13 +05303414 mpt2sas_base_get_sense_buffer_dma(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003415 mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
3416 mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
3417 MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303418 mpi_request->VF_ID = 0; /* TODO */
3419 mpi_request->VP_ID = 0;
Eric Moore635374e2009-03-09 01:21:12 -06003420 int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
3421 mpi_request->LUN);
3422 memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
3423
3424 if (!mpi_request->DataLength) {
3425 mpt2sas_base_build_zero_len_sge(ioc, &mpi_request->SGL);
3426 } else {
3427 if (_scsih_build_scatter_gather(ioc, scmd, smid)) {
3428 mpt2sas_base_free_smid(ioc, smid);
3429 goto out;
3430 }
3431 }
3432
Kashyap, Desai58287fd2010-03-17 16:27:25 +05303433 if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST))
3434 mpt2sas_base_put_smid_scsi_io(ioc, smid,
3435 sas_device_priv_data->sas_target->handle);
3436 else
3437 mpt2sas_base_put_smid_default(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003438 return 0;
3439
3440 out:
3441 return SCSI_MLQUEUE_HOST_BUSY;
3442}
3443
3444/**
3445 * _scsih_normalize_sense - normalize descriptor and fixed format sense data
3446 * @sense_buffer: sense data returned by target
3447 * @data: normalized skey/asc/ascq
3448 *
3449 * Return nothing.
3450 */
3451static void
3452_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
3453{
3454 if ((sense_buffer[0] & 0x7F) >= 0x72) {
3455 /* descriptor format */
3456 data->skey = sense_buffer[1] & 0x0F;
3457 data->asc = sense_buffer[2];
3458 data->ascq = sense_buffer[3];
3459 } else {
3460 /* fixed format */
3461 data->skey = sense_buffer[2] & 0x0F;
3462 data->asc = sense_buffer[12];
3463 data->ascq = sense_buffer[13];
3464 }
3465}
3466
3467#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3468/**
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02003469 * _scsih_scsi_ioc_info - translated non-successfull SCSI_IO request
Eric Moore635374e2009-03-09 01:21:12 -06003470 * @ioc: per adapter object
3471 * @scmd: pointer to scsi command object
3472 * @mpi_reply: reply mf payload returned from firmware
3473 *
3474 * scsi_status - SCSI Status code returned from target device
3475 * scsi_state - state info associated with SCSI_IO determined by ioc
3476 * ioc_status - ioc supplied status info
3477 *
3478 * Return nothing.
3479 */
3480static void
3481_scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3482 Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
3483{
3484 u32 response_info;
3485 u8 *response_bytes;
3486 u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
3487 MPI2_IOCSTATUS_MASK;
3488 u8 scsi_state = mpi_reply->SCSIState;
3489 u8 scsi_status = mpi_reply->SCSIStatus;
3490 char *desc_ioc_state = NULL;
3491 char *desc_scsi_status = NULL;
3492 char *desc_scsi_state = ioc->tmp_string;
Kashyap, Desaibe9e8cd72009-08-07 19:36:43 +05303493 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
Kashyap, Desai7fbae672010-06-17 13:45:17 +05303494 struct _sas_device *sas_device = NULL;
3495 unsigned long flags;
Kashyap, Desai8e864a82010-06-17 13:48:46 +05303496 struct scsi_target *starget = scmd->device->sdev_target;
3497 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
3498
3499 if (!priv_target)
3500 return;
Kashyap, Desaibe9e8cd72009-08-07 19:36:43 +05303501
3502 if (log_info == 0x31170000)
3503 return;
Eric Moore635374e2009-03-09 01:21:12 -06003504
3505 switch (ioc_status) {
3506 case MPI2_IOCSTATUS_SUCCESS:
3507 desc_ioc_state = "success";
3508 break;
3509 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3510 desc_ioc_state = "invalid function";
3511 break;
3512 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3513 desc_ioc_state = "scsi recovered error";
3514 break;
3515 case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
3516 desc_ioc_state = "scsi invalid dev handle";
3517 break;
3518 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3519 desc_ioc_state = "scsi device not there";
3520 break;
3521 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3522 desc_ioc_state = "scsi data overrun";
3523 break;
3524 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3525 desc_ioc_state = "scsi data underrun";
3526 break;
3527 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3528 desc_ioc_state = "scsi io data error";
3529 break;
3530 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3531 desc_ioc_state = "scsi protocol error";
3532 break;
3533 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3534 desc_ioc_state = "scsi task terminated";
3535 break;
3536 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3537 desc_ioc_state = "scsi residual mismatch";
3538 break;
3539 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3540 desc_ioc_state = "scsi task mgmt failed";
3541 break;
3542 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3543 desc_ioc_state = "scsi ioc terminated";
3544 break;
3545 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3546 desc_ioc_state = "scsi ext terminated";
3547 break;
Eric Moore3c621b32009-05-18 12:59:41 -06003548 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3549 desc_ioc_state = "eedp guard error";
3550 break;
3551 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3552 desc_ioc_state = "eedp ref tag error";
3553 break;
3554 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3555 desc_ioc_state = "eedp app tag error";
3556 break;
Eric Moore635374e2009-03-09 01:21:12 -06003557 default:
3558 desc_ioc_state = "unknown";
3559 break;
3560 }
3561
3562 switch (scsi_status) {
3563 case MPI2_SCSI_STATUS_GOOD:
3564 desc_scsi_status = "good";
3565 break;
3566 case MPI2_SCSI_STATUS_CHECK_CONDITION:
3567 desc_scsi_status = "check condition";
3568 break;
3569 case MPI2_SCSI_STATUS_CONDITION_MET:
3570 desc_scsi_status = "condition met";
3571 break;
3572 case MPI2_SCSI_STATUS_BUSY:
3573 desc_scsi_status = "busy";
3574 break;
3575 case MPI2_SCSI_STATUS_INTERMEDIATE:
3576 desc_scsi_status = "intermediate";
3577 break;
3578 case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
3579 desc_scsi_status = "intermediate condmet";
3580 break;
3581 case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
3582 desc_scsi_status = "reservation conflict";
3583 break;
3584 case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
3585 desc_scsi_status = "command terminated";
3586 break;
3587 case MPI2_SCSI_STATUS_TASK_SET_FULL:
3588 desc_scsi_status = "task set full";
3589 break;
3590 case MPI2_SCSI_STATUS_ACA_ACTIVE:
3591 desc_scsi_status = "aca active";
3592 break;
3593 case MPI2_SCSI_STATUS_TASK_ABORTED:
3594 desc_scsi_status = "task aborted";
3595 break;
3596 default:
3597 desc_scsi_status = "unknown";
3598 break;
3599 }
3600
3601 desc_scsi_state[0] = '\0';
3602 if (!scsi_state)
3603 desc_scsi_state = " ";
3604 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3605 strcat(desc_scsi_state, "response info ");
3606 if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3607 strcat(desc_scsi_state, "state terminated ");
3608 if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
3609 strcat(desc_scsi_state, "no status ");
3610 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
3611 strcat(desc_scsi_state, "autosense failed ");
3612 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
3613 strcat(desc_scsi_state, "autosense valid ");
3614
3615 scsi_print_command(scmd);
Kashyap, Desai7fbae672010-06-17 13:45:17 +05303616
Kashyap, Desai8e864a82010-06-17 13:48:46 +05303617 if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
3618 printk(MPT2SAS_WARN_FMT "\tvolume wwid(0x%016llx)\n", ioc->name,
3619 (unsigned long long)priv_target->sas_address);
3620 } else {
3621 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3622 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
3623 priv_target->sas_address);
3624 if (sas_device) {
3625 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
3626 "phy(%d)\n", ioc->name, sas_device->sas_address,
3627 sas_device->phy);
3628 printk(MPT2SAS_WARN_FMT
3629 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
3630 ioc->name, sas_device->enclosure_logical_id,
3631 sas_device->slot);
3632 }
3633 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
Kashyap, Desai7fbae672010-06-17 13:45:17 +05303634 }
Kashyap, Desai7fbae672010-06-17 13:45:17 +05303635
Kashyap, Desai8e864a82010-06-17 13:48:46 +05303636 printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
3637 "smid(%d)\n", ioc->name, le16_to_cpu(mpi_reply->DevHandle),
3638 desc_ioc_state, ioc_status, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003639 printk(MPT2SAS_WARN_FMT "\trequest_len(%d), underflow(%d), "
3640 "resid(%d)\n", ioc->name, scsi_bufflen(scmd), scmd->underflow,
3641 scsi_get_resid(scmd));
3642 printk(MPT2SAS_WARN_FMT "\ttag(%d), transfer_count(%d), "
3643 "sc->result(0x%08x)\n", ioc->name, le16_to_cpu(mpi_reply->TaskTag),
3644 le32_to_cpu(mpi_reply->TransferCount), scmd->result);
3645 printk(MPT2SAS_WARN_FMT "\tscsi_status(%s)(0x%02x), "
3646 "scsi_state(%s)(0x%02x)\n", ioc->name, desc_scsi_status,
3647 scsi_status, desc_scsi_state, scsi_state);
3648
3649 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3650 struct sense_info data;
3651 _scsih_normalize_sense(scmd->sense_buffer, &data);
3652 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
Kashyap, Desaie94f6742010-03-17 16:24:52 +05303653 "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
3654 data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
Eric Moore635374e2009-03-09 01:21:12 -06003655 }
3656
3657 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
3658 response_info = le32_to_cpu(mpi_reply->ResponseInfo);
3659 response_bytes = (u8 *)&response_info;
Kashyap, Desai9982f592009-09-23 17:23:07 +05303660 _scsih_response_code(ioc, response_bytes[0]);
Eric Moore635374e2009-03-09 01:21:12 -06003661 }
3662}
3663#endif
3664
3665/**
3666 * _scsih_smart_predicted_fault - illuminate Fault LED
3667 * @ioc: per adapter object
3668 * @handle: device handle
3669 *
3670 * Return nothing.
3671 */
3672static void
3673_scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3674{
3675 Mpi2SepReply_t mpi_reply;
3676 Mpi2SepRequest_t mpi_request;
3677 struct scsi_target *starget;
3678 struct MPT2SAS_TARGET *sas_target_priv_data;
3679 Mpi2EventNotificationReply_t *event_reply;
3680 Mpi2EventDataSasDeviceStatusChange_t *event_data;
3681 struct _sas_device *sas_device;
3682 ssize_t sz;
3683 unsigned long flags;
3684
3685 /* only handle non-raid devices */
3686 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3687 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
3688 if (!sas_device) {
3689 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3690 return;
3691 }
3692 starget = sas_device->starget;
3693 sas_target_priv_data = starget->hostdata;
3694
3695 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
3696 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
3697 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3698 return;
3699 }
3700 starget_printk(KERN_WARNING, starget, "predicted fault\n");
3701 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3702
3703 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) {
3704 memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
3705 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
3706 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
3707 mpi_request.SlotStatus =
Kashyap, Desaie94f6742010-03-17 16:24:52 +05303708 cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
Eric Moore635374e2009-03-09 01:21:12 -06003709 mpi_request.DevHandle = cpu_to_le16(handle);
3710 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
3711 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
3712 &mpi_request)) != 0) {
3713 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3714 ioc->name, __FILE__, __LINE__, __func__);
3715 return;
3716 }
3717
3718 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
3719 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3720 "enclosure_processor: ioc_status (0x%04x), "
3721 "loginfo(0x%08x)\n", ioc->name,
3722 le16_to_cpu(mpi_reply.IOCStatus),
3723 le32_to_cpu(mpi_reply.IOCLogInfo)));
3724 return;
3725 }
3726 }
3727
3728 /* insert into event log */
3729 sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
3730 sizeof(Mpi2EventDataSasDeviceStatusChange_t);
3731 event_reply = kzalloc(sz, GFP_KERNEL);
3732 if (!event_reply) {
3733 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3734 ioc->name, __FILE__, __LINE__, __func__);
3735 return;
3736 }
3737
3738 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
3739 event_reply->Event =
3740 cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
3741 event_reply->MsgLength = sz/4;
3742 event_reply->EventDataLength =
3743 cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
3744 event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
3745 event_reply->EventData;
3746 event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
3747 event_data->ASC = 0x5D;
3748 event_data->DevHandle = cpu_to_le16(handle);
3749 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
3750 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
3751 kfree(event_reply);
3752}
3753
3754/**
Eric Moored5d135b2009-05-18 13:02:08 -06003755 * _scsih_io_done - scsi request callback
Eric Moore635374e2009-03-09 01:21:12 -06003756 * @ioc: per adapter object
3757 * @smid: system request message index
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303758 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -06003759 * @reply: reply message frame(lower 32bit addr)
3760 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05303761 * Callback handler when using _scsih_qcmd.
Eric Moore635374e2009-03-09 01:21:12 -06003762 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05303763 * Return 1 meaning mf should be freed from _base_interrupt
3764 * 0 means the mf is freed from this function.
Eric Moore635374e2009-03-09 01:21:12 -06003765 */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05303766static u8
Kashyap, Desai7b936b02009-09-25 11:44:41 +05303767_scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
Eric Moore635374e2009-03-09 01:21:12 -06003768{
3769 Mpi2SCSIIORequest_t *mpi_request;
3770 Mpi2SCSIIOReply_t *mpi_reply;
3771 struct scsi_cmnd *scmd;
3772 u16 ioc_status;
3773 u32 xfer_cnt;
3774 u8 scsi_state;
3775 u8 scsi_status;
3776 u32 log_info;
3777 struct MPT2SAS_DEVICE *sas_device_priv_data;
Kashyap, Desai9982f592009-09-23 17:23:07 +05303778 u32 response_code = 0;
Eric Moore635374e2009-03-09 01:21:12 -06003779
3780 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05303781 scmd = _scsih_scsi_lookup_get(ioc, smid);
Eric Moore635374e2009-03-09 01:21:12 -06003782 if (scmd == NULL)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05303783 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06003784
3785 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
3786
3787 if (mpi_reply == NULL) {
3788 scmd->result = DID_OK << 16;
3789 goto out;
3790 }
3791
3792 sas_device_priv_data = scmd->device->hostdata;
3793 if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
3794 sas_device_priv_data->sas_target->deleted) {
3795 scmd->result = DID_NO_CONNECT << 16;
3796 goto out;
3797 }
3798
3799 /* turning off TLR */
Kashyap, Desai9982f592009-09-23 17:23:07 +05303800 scsi_state = mpi_reply->SCSIState;
3801 if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
3802 response_code =
3803 le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
Eric Moore635374e2009-03-09 01:21:12 -06003804 if (!sas_device_priv_data->tlr_snoop_check) {
3805 sas_device_priv_data->tlr_snoop_check++;
Kashyap, Desai3ed21522010-02-17 16:08:36 +05303806 if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
3807 sas_is_tlr_enabled(scmd->device) &&
Kashyap, Desai84f0b042009-12-16 18:56:28 +05303808 response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME) {
3809 sas_disable_tlr(scmd->device);
3810 sdev_printk(KERN_INFO, scmd->device, "TLR disabled\n");
3811 }
Eric Moore635374e2009-03-09 01:21:12 -06003812 }
3813
3814 xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
3815 scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
3816 ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
3817 if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
3818 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
3819 else
3820 log_info = 0;
3821 ioc_status &= MPI2_IOCSTATUS_MASK;
Eric Moore635374e2009-03-09 01:21:12 -06003822 scsi_status = mpi_reply->SCSIStatus;
3823
3824 if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
3825 (scsi_status == MPI2_SCSI_STATUS_BUSY ||
3826 scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
3827 scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
3828 ioc_status = MPI2_IOCSTATUS_SUCCESS;
3829 }
3830
3831 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
3832 struct sense_info data;
3833 const void *sense_data = mpt2sas_base_get_sense_buffer(ioc,
3834 smid);
Eric Moore0d04df92009-04-21 15:38:43 -06003835 u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
Eric Moore635374e2009-03-09 01:21:12 -06003836 le32_to_cpu(mpi_reply->SenseCount));
Eric Moore0d04df92009-04-21 15:38:43 -06003837 memcpy(scmd->sense_buffer, sense_data, sz);
Eric Moore635374e2009-03-09 01:21:12 -06003838 _scsih_normalize_sense(scmd->sense_buffer, &data);
3839 /* failure prediction threshold exceeded */
3840 if (data.asc == 0x5D)
3841 _scsih_smart_predicted_fault(ioc,
3842 le16_to_cpu(mpi_reply->DevHandle));
3843 }
3844
3845 switch (ioc_status) {
3846 case MPI2_IOCSTATUS_BUSY:
3847 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
3848 scmd->result = SAM_STAT_BUSY;
3849 break;
3850
3851 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
3852 scmd->result = DID_NO_CONNECT << 16;
3853 break;
3854
3855 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
3856 if (sas_device_priv_data->block) {
Kashyap, Desaie4e7c7e2009-09-23 17:33:14 +05303857 scmd->result = DID_TRANSPORT_DISRUPTED << 16;
3858 goto out;
Eric Moore635374e2009-03-09 01:21:12 -06003859 }
Eric Moore635374e2009-03-09 01:21:12 -06003860 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
3861 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
3862 scmd->result = DID_RESET << 16;
3863 break;
3864
3865 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
3866 if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
3867 scmd->result = DID_SOFT_ERROR << 16;
3868 else
3869 scmd->result = (DID_OK << 16) | scsi_status;
3870 break;
3871
3872 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
3873 scmd->result = (DID_OK << 16) | scsi_status;
3874
3875 if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
3876 break;
3877
3878 if (xfer_cnt < scmd->underflow) {
3879 if (scsi_status == SAM_STAT_BUSY)
3880 scmd->result = SAM_STAT_BUSY;
3881 else
3882 scmd->result = DID_SOFT_ERROR << 16;
3883 } else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3884 MPI2_SCSI_STATE_NO_SCSI_STATUS))
3885 scmd->result = DID_SOFT_ERROR << 16;
3886 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3887 scmd->result = DID_RESET << 16;
3888 else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
3889 mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
3890 mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
3891 scmd->result = (DRIVER_SENSE << 24) |
3892 SAM_STAT_CHECK_CONDITION;
3893 scmd->sense_buffer[0] = 0x70;
3894 scmd->sense_buffer[2] = ILLEGAL_REQUEST;
3895 scmd->sense_buffer[12] = 0x20;
3896 scmd->sense_buffer[13] = 0;
3897 }
3898 break;
3899
3900 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
3901 scsi_set_resid(scmd, 0);
3902 case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
3903 case MPI2_IOCSTATUS_SUCCESS:
3904 scmd->result = (DID_OK << 16) | scsi_status;
Kashyap, Desai9982f592009-09-23 17:23:07 +05303905 if (response_code ==
3906 MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
3907 (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
3908 MPI2_SCSI_STATE_NO_SCSI_STATUS)))
Eric Moore635374e2009-03-09 01:21:12 -06003909 scmd->result = DID_SOFT_ERROR << 16;
3910 else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
3911 scmd->result = DID_RESET << 16;
3912 break;
3913
Eric Moore3c621b32009-05-18 12:59:41 -06003914 case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
3915 case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
3916 case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
3917 _scsih_eedp_error_handling(scmd, ioc_status);
3918 break;
Eric Moore635374e2009-03-09 01:21:12 -06003919 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
3920 case MPI2_IOCSTATUS_INVALID_FUNCTION:
3921 case MPI2_IOCSTATUS_INVALID_SGL:
3922 case MPI2_IOCSTATUS_INTERNAL_ERROR:
3923 case MPI2_IOCSTATUS_INVALID_FIELD:
3924 case MPI2_IOCSTATUS_INVALID_STATE:
3925 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
3926 case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
3927 default:
3928 scmd->result = DID_SOFT_ERROR << 16;
3929 break;
3930
3931 }
3932
3933#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
3934 if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
3935 _scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
3936#endif
3937
3938 out:
3939 scsi_dma_unmap(scmd);
3940 scmd->scsi_done(scmd);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05303941 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06003942}
3943
3944/**
Eric Moore635374e2009-03-09 01:21:12 -06003945 * _scsih_sas_host_refresh - refreshing sas host object contents
3946 * @ioc: per adapter object
Eric Moore635374e2009-03-09 01:21:12 -06003947 * Context: user
3948 *
3949 * During port enable, fw will send topology events for every device. Its
3950 * possible that the handles may change from the previous setting, so this
3951 * code keeping handles updating if changed.
3952 *
3953 * Return nothing.
3954 */
3955static void
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05303956_scsih_sas_host_refresh(struct MPT2SAS_ADAPTER *ioc)
Eric Moore635374e2009-03-09 01:21:12 -06003957{
3958 u16 sz;
3959 u16 ioc_status;
3960 int i;
3961 Mpi2ConfigReply_t mpi_reply;
3962 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05303963 u16 attached_handle;
Eric Moore635374e2009-03-09 01:21:12 -06003964
3965 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
3966 "updating handles for sas_host(0x%016llx)\n",
3967 ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
3968
3969 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
3970 * sizeof(Mpi2SasIOUnit0PhyData_t));
3971 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
3972 if (!sas_iounit_pg0) {
3973 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
3974 ioc->name, __FILE__, __LINE__, __func__);
3975 return;
3976 }
Eric Moore635374e2009-03-09 01:21:12 -06003977
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05303978 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
3979 sas_iounit_pg0, sz)) != 0)
3980 goto out;
3981 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
3982 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
3983 goto out;
3984 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
3985 if (i == 0)
3986 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
3987 PhyData[0].ControllerDevHandle);
3988 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
3989 attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
3990 AttachedDevHandle);
3991 mpt2sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
3992 attached_handle, i, sas_iounit_pg0->PhyData[i].
3993 NegotiatedLinkRate >> 4);
3994 }
Eric Moore635374e2009-03-09 01:21:12 -06003995 out:
3996 kfree(sas_iounit_pg0);
3997}
3998
3999/**
4000 * _scsih_sas_host_add - create sas host object
4001 * @ioc: per adapter object
4002 *
4003 * Creating host side data object, stored in ioc->sas_hba
4004 *
4005 * Return nothing.
4006 */
4007static void
4008_scsih_sas_host_add(struct MPT2SAS_ADAPTER *ioc)
4009{
4010 int i;
4011 Mpi2ConfigReply_t mpi_reply;
4012 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
4013 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
4014 Mpi2SasPhyPage0_t phy_pg0;
4015 Mpi2SasDevicePage0_t sas_device_pg0;
4016 Mpi2SasEnclosurePage0_t enclosure_pg0;
4017 u16 ioc_status;
4018 u16 sz;
4019 u16 device_missing_delay;
4020
4021 mpt2sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
4022 if (!ioc->sas_hba.num_phys) {
4023 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4024 ioc->name, __FILE__, __LINE__, __func__);
4025 return;
4026 }
4027
4028 /* sas_iounit page 0 */
4029 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
4030 sizeof(Mpi2SasIOUnit0PhyData_t));
4031 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
4032 if (!sas_iounit_pg0) {
4033 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4034 ioc->name, __FILE__, __LINE__, __func__);
4035 return;
4036 }
4037 if ((mpt2sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
4038 sas_iounit_pg0, sz))) {
4039 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4040 ioc->name, __FILE__, __LINE__, __func__);
4041 goto out;
4042 }
4043 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4044 MPI2_IOCSTATUS_MASK;
4045 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4046 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4047 ioc->name, __FILE__, __LINE__, __func__);
4048 goto out;
4049 }
4050
4051 /* sas_iounit page 1 */
4052 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
4053 sizeof(Mpi2SasIOUnit1PhyData_t));
4054 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
4055 if (!sas_iounit_pg1) {
4056 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4057 ioc->name, __FILE__, __LINE__, __func__);
4058 goto out;
4059 }
4060 if ((mpt2sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
4061 sas_iounit_pg1, sz))) {
4062 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4063 ioc->name, __FILE__, __LINE__, __func__);
4064 goto out;
4065 }
4066 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4067 MPI2_IOCSTATUS_MASK;
4068 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4069 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4070 ioc->name, __FILE__, __LINE__, __func__);
4071 goto out;
4072 }
4073
4074 ioc->io_missing_delay =
4075 le16_to_cpu(sas_iounit_pg1->IODeviceMissingDelay);
4076 device_missing_delay =
4077 le16_to_cpu(sas_iounit_pg1->ReportDeviceMissingDelay);
4078 if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
4079 ioc->device_missing_delay = (device_missing_delay &
4080 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
4081 else
4082 ioc->device_missing_delay = device_missing_delay &
4083 MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
4084
4085 ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
4086 ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
4087 sizeof(struct _sas_phy), GFP_KERNEL);
4088 if (!ioc->sas_hba.phy) {
4089 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4090 ioc->name, __FILE__, __LINE__, __func__);
4091 goto out;
4092 }
4093 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
4094 if ((mpt2sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
4095 i))) {
4096 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4097 ioc->name, __FILE__, __LINE__, __func__);
4098 goto out;
4099 }
4100 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4101 MPI2_IOCSTATUS_MASK;
4102 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4103 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4104 ioc->name, __FILE__, __LINE__, __func__);
4105 goto out;
4106 }
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304107
4108 if (i == 0)
4109 ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
4110 PhyData[0].ControllerDevHandle);
4111 ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
Eric Moore635374e2009-03-09 01:21:12 -06004112 ioc->sas_hba.phy[i].phy_id = i;
4113 mpt2sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
4114 phy_pg0, ioc->sas_hba.parent_dev);
4115 }
4116 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304117 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
Eric Moore635374e2009-03-09 01:21:12 -06004118 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4119 ioc->name, __FILE__, __LINE__, __func__);
4120 goto out;
4121 }
Eric Moore635374e2009-03-09 01:21:12 -06004122 ioc->sas_hba.enclosure_handle =
4123 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4124 ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4125 printk(MPT2SAS_INFO_FMT "host_add: handle(0x%04x), "
4126 "sas_addr(0x%016llx), phys(%d)\n", ioc->name, ioc->sas_hba.handle,
4127 (unsigned long long) ioc->sas_hba.sas_address,
4128 ioc->sas_hba.num_phys) ;
4129
4130 if (ioc->sas_hba.enclosure_handle) {
4131 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4132 &enclosure_pg0,
4133 MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4134 ioc->sas_hba.enclosure_handle))) {
4135 ioc->sas_hba.enclosure_logical_id =
4136 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4137 }
4138 }
4139
4140 out:
4141 kfree(sas_iounit_pg1);
4142 kfree(sas_iounit_pg0);
4143}
4144
4145/**
4146 * _scsih_expander_add - creating expander object
4147 * @ioc: per adapter object
4148 * @handle: expander handle
4149 *
4150 * Creating expander object, stored in ioc->sas_expander_list.
4151 *
4152 * Return 0 for success, else error.
4153 */
4154static int
4155_scsih_expander_add(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4156{
4157 struct _sas_node *sas_expander;
4158 Mpi2ConfigReply_t mpi_reply;
4159 Mpi2ExpanderPage0_t expander_pg0;
4160 Mpi2ExpanderPage1_t expander_pg1;
4161 Mpi2SasEnclosurePage0_t enclosure_pg0;
4162 u32 ioc_status;
4163 u16 parent_handle;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304164 __le64 sas_address, sas_address_parent = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004165 int i;
4166 unsigned long flags;
Kashyap, Desai20f58952009-08-07 19:34:26 +05304167 struct _sas_port *mpt2sas_port = NULL;
Eric Moore635374e2009-03-09 01:21:12 -06004168 int rc = 0;
4169
4170 if (!handle)
4171 return -1;
4172
Eric Moore3cb54692010-07-08 14:44:34 -06004173 if (ioc->shost_recovery || ioc->pci_error_recovery)
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05304174 return -1;
4175
Eric Moore635374e2009-03-09 01:21:12 -06004176 if ((mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
4177 MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
4178 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4179 ioc->name, __FILE__, __LINE__, __func__);
4180 return -1;
4181 }
4182
4183 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4184 MPI2_IOCSTATUS_MASK;
4185 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4186 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4187 ioc->name, __FILE__, __LINE__, __func__);
4188 return -1;
4189 }
4190
4191 /* handle out of order topology events */
4192 parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304193 if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
4194 != 0) {
4195 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4196 ioc->name, __FILE__, __LINE__, __func__);
4197 return -1;
4198 }
4199 if (sas_address_parent != ioc->sas_hba.sas_address) {
Eric Moore635374e2009-03-09 01:21:12 -06004200 spin_lock_irqsave(&ioc->sas_node_lock, flags);
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304201 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4202 sas_address_parent);
Eric Moore635374e2009-03-09 01:21:12 -06004203 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4204 if (!sas_expander) {
4205 rc = _scsih_expander_add(ioc, parent_handle);
4206 if (rc != 0)
4207 return rc;
4208 }
4209 }
4210
Eric Moore635374e2009-03-09 01:21:12 -06004211 spin_lock_irqsave(&ioc->sas_node_lock, flags);
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05304212 sas_address = le64_to_cpu(expander_pg0.SASAddress);
Eric Moore635374e2009-03-09 01:21:12 -06004213 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4214 sas_address);
4215 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4216
4217 if (sas_expander)
4218 return 0;
4219
4220 sas_expander = kzalloc(sizeof(struct _sas_node),
4221 GFP_KERNEL);
4222 if (!sas_expander) {
4223 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4224 ioc->name, __FILE__, __LINE__, __func__);
4225 return -1;
4226 }
4227
4228 sas_expander->handle = handle;
4229 sas_expander->num_phys = expander_pg0.NumPhys;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304230 sas_expander->sas_address_parent = sas_address_parent;
Eric Moore635374e2009-03-09 01:21:12 -06004231 sas_expander->sas_address = sas_address;
4232
4233 printk(MPT2SAS_INFO_FMT "expander_add: handle(0x%04x),"
4234 " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304235 handle, parent_handle, (unsigned long long)
Eric Moore635374e2009-03-09 01:21:12 -06004236 sas_expander->sas_address, sas_expander->num_phys);
4237
4238 if (!sas_expander->num_phys)
4239 goto out_fail;
4240 sas_expander->phy = kcalloc(sas_expander->num_phys,
4241 sizeof(struct _sas_phy), GFP_KERNEL);
4242 if (!sas_expander->phy) {
4243 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4244 ioc->name, __FILE__, __LINE__, __func__);
4245 rc = -1;
4246 goto out_fail;
4247 }
4248
4249 INIT_LIST_HEAD(&sas_expander->sas_port_list);
4250 mpt2sas_port = mpt2sas_transport_port_add(ioc, handle,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304251 sas_address_parent);
Eric Moore635374e2009-03-09 01:21:12 -06004252 if (!mpt2sas_port) {
4253 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4254 ioc->name, __FILE__, __LINE__, __func__);
4255 rc = -1;
4256 goto out_fail;
4257 }
4258 sas_expander->parent_dev = &mpt2sas_port->rphy->dev;
4259
4260 for (i = 0 ; i < sas_expander->num_phys ; i++) {
4261 if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply,
4262 &expander_pg1, i, handle))) {
4263 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4264 ioc->name, __FILE__, __LINE__, __func__);
Kashyap, Desai20f58952009-08-07 19:34:26 +05304265 rc = -1;
4266 goto out_fail;
Eric Moore635374e2009-03-09 01:21:12 -06004267 }
4268 sas_expander->phy[i].handle = handle;
4269 sas_expander->phy[i].phy_id = i;
Kashyap, Desai20f58952009-08-07 19:34:26 +05304270
4271 if ((mpt2sas_transport_add_expander_phy(ioc,
4272 &sas_expander->phy[i], expander_pg1,
4273 sas_expander->parent_dev))) {
4274 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4275 ioc->name, __FILE__, __LINE__, __func__);
4276 rc = -1;
4277 goto out_fail;
4278 }
Eric Moore635374e2009-03-09 01:21:12 -06004279 }
4280
4281 if (sas_expander->enclosure_handle) {
4282 if (!(mpt2sas_config_get_enclosure_pg0(ioc, &mpi_reply,
4283 &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4284 sas_expander->enclosure_handle))) {
4285 sas_expander->enclosure_logical_id =
4286 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
4287 }
4288 }
4289
4290 _scsih_expander_node_add(ioc, sas_expander);
4291 return 0;
4292
4293 out_fail:
4294
Kashyap, Desai20f58952009-08-07 19:34:26 +05304295 if (mpt2sas_port)
4296 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304297 sas_address_parent);
Eric Moore635374e2009-03-09 01:21:12 -06004298 kfree(sas_expander);
4299 return rc;
4300}
4301
4302/**
Kashyap, Desai744090d2009-10-05 15:56:56 +05304303 * _scsih_done - scsih callback handler.
4304 * @ioc: per adapter object
4305 * @smid: system request message index
4306 * @msix_index: MSIX table index supplied by the OS
4307 * @reply: reply message frame(lower 32bit addr)
4308 *
4309 * Callback handler when sending internal generated message frames.
4310 * The callback index passed is `ioc->scsih_cb_idx`
4311 *
4312 * Return 1 meaning mf should be freed from _base_interrupt
4313 * 0 means the mf is freed from this function.
4314 */
4315static u8
4316_scsih_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4317{
4318 MPI2DefaultReply_t *mpi_reply;
4319
4320 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
4321 if (ioc->scsih_cmds.status == MPT2_CMD_NOT_USED)
4322 return 1;
4323 if (ioc->scsih_cmds.smid != smid)
4324 return 1;
4325 ioc->scsih_cmds.status |= MPT2_CMD_COMPLETE;
4326 if (mpi_reply) {
4327 memcpy(ioc->scsih_cmds.reply, mpi_reply,
4328 mpi_reply->MsgLength*4);
4329 ioc->scsih_cmds.status |= MPT2_CMD_REPLY_VALID;
4330 }
4331 ioc->scsih_cmds.status &= ~MPT2_CMD_PENDING;
4332 complete(&ioc->scsih_cmds.done);
4333 return 1;
4334}
4335
4336/**
Eric Moore635374e2009-03-09 01:21:12 -06004337 * _scsih_expander_remove - removing expander object
4338 * @ioc: per adapter object
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304339 * @sas_address: expander sas_address
Eric Moore635374e2009-03-09 01:21:12 -06004340 *
4341 * Return nothing.
4342 */
4343static void
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304344_scsih_expander_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address)
Eric Moore635374e2009-03-09 01:21:12 -06004345{
4346 struct _sas_node *sas_expander;
4347 unsigned long flags;
4348
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05304349 if (ioc->shost_recovery)
4350 return;
4351
Eric Moore635374e2009-03-09 01:21:12 -06004352 spin_lock_irqsave(&ioc->sas_node_lock, flags);
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304353 sas_expander = mpt2sas_scsih_expander_find_by_sas_address(ioc,
4354 sas_address);
Eric Moore635374e2009-03-09 01:21:12 -06004355 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4356 _scsih_expander_node_remove(ioc, sas_expander);
4357}
4358
4359/**
Kashyap, Desaib4344272010-03-17 16:24:14 +05304360 * _scsih_check_access_status - check access flags
4361 * @ioc: per adapter object
4362 * @sas_address: sas address
4363 * @handle: sas device handle
4364 * @access_flags: errors returned during discovery of the device
4365 *
4366 * Return 0 for success, else failure
4367 */
4368static u8
4369_scsih_check_access_status(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
4370 u16 handle, u8 access_status)
4371{
4372 u8 rc = 1;
4373 char *desc = NULL;
4374
4375 switch (access_status) {
4376 case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
4377 case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
4378 rc = 0;
4379 break;
4380 case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
4381 desc = "sata capability failed";
4382 break;
4383 case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
4384 desc = "sata affiliation conflict";
4385 break;
4386 case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
4387 desc = "route not addressable";
4388 break;
4389 case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
4390 desc = "smp error not addressable";
4391 break;
4392 case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
4393 desc = "device blocked";
4394 break;
4395 case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
4396 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
4397 case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
4398 case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
4399 case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
4400 case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
4401 case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
4402 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
4403 case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
4404 case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
4405 case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
4406 case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
4407 desc = "sata initialization failed";
4408 break;
4409 default:
4410 desc = "unknown";
4411 break;
4412 }
4413
4414 if (!rc)
4415 return 0;
4416
4417 printk(MPT2SAS_ERR_FMT "discovery errors(%s): sas_address(0x%016llx), "
4418 "handle(0x%04x)\n", ioc->name, desc,
4419 (unsigned long long)sas_address, handle);
4420 return rc;
4421}
4422
4423static void
4424_scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4425{
4426 Mpi2ConfigReply_t mpi_reply;
4427 Mpi2SasDevicePage0_t sas_device_pg0;
4428 struct _sas_device *sas_device;
4429 u32 ioc_status;
4430 unsigned long flags;
4431 u64 sas_address;
4432 struct scsi_target *starget;
4433 struct MPT2SAS_TARGET *sas_target_priv_data;
4434 u32 device_info;
4435
4436 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4437 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
4438 return;
4439
4440 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
4441 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
4442 return;
4443
4444 /* check if this is end device */
4445 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4446 if (!(_scsih_is_end_device(device_info)))
4447 return;
4448
4449 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4450 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4451 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4452 sas_address);
4453
4454 if (!sas_device) {
4455 printk(MPT2SAS_ERR_FMT "device is not present "
4456 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
4457 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4458 return;
4459 }
4460
4461 if (unlikely(sas_device->handle != handle)) {
4462 starget = sas_device->starget;
4463 sas_target_priv_data = starget->hostdata;
4464 starget_printk(KERN_INFO, starget, "handle changed from(0x%04x)"
4465 " to (0x%04x)!!!\n", sas_device->handle, handle);
4466 sas_target_priv_data->handle = handle;
4467 sas_device->handle = handle;
4468 }
4469 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4470
4471 /* check if device is present */
4472 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4473 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4474 printk(MPT2SAS_ERR_FMT "device is not present "
4475 "handle(0x%04x), flags!!!\n", ioc->name, handle);
4476 return;
4477 }
4478
4479 /* check if there were any issues with discovery */
4480 if (_scsih_check_access_status(ioc, sas_address, handle,
4481 sas_device_pg0.AccessStatus))
4482 return;
4483 _scsih_ublock_io_device(ioc, handle);
4484
4485}
4486
4487/**
Eric Moore635374e2009-03-09 01:21:12 -06004488 * _scsih_add_device - creating sas device object
4489 * @ioc: per adapter object
4490 * @handle: sas device handle
4491 * @phy_num: phy number end device attached to
4492 * @is_pd: is this hidden raid component
4493 *
4494 * Creating end device object, stored in ioc->sas_device_list.
4495 *
4496 * Returns 0 for success, non-zero for failure.
4497 */
4498static int
4499_scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
4500{
4501 Mpi2ConfigReply_t mpi_reply;
4502 Mpi2SasDevicePage0_t sas_device_pg0;
4503 Mpi2SasEnclosurePage0_t enclosure_pg0;
4504 struct _sas_device *sas_device;
4505 u32 ioc_status;
4506 __le64 sas_address;
4507 u32 device_info;
4508 unsigned long flags;
4509
4510 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
4511 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
4512 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4513 ioc->name, __FILE__, __LINE__, __func__);
4514 return -1;
4515 }
4516
4517 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
4518 MPI2_IOCSTATUS_MASK;
4519 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
4520 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4521 ioc->name, __FILE__, __LINE__, __func__);
4522 return -1;
4523 }
4524
Kashyap, Desaib4344272010-03-17 16:24:14 +05304525 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
4526
Eric Moore635374e2009-03-09 01:21:12 -06004527 /* check if device is present */
4528 if (!(le16_to_cpu(sas_device_pg0.Flags) &
4529 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
4530 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4531 ioc->name, __FILE__, __LINE__, __func__);
4532 printk(MPT2SAS_ERR_FMT "Flags = 0x%04x\n",
4533 ioc->name, le16_to_cpu(sas_device_pg0.Flags));
4534 return -1;
4535 }
4536
Kashyap, Desaib4344272010-03-17 16:24:14 +05304537 /* check if there were any issues with discovery */
4538 if (_scsih_check_access_status(ioc, sas_address, handle,
4539 sas_device_pg0.AccessStatus))
Eric Moore635374e2009-03-09 01:21:12 -06004540 return -1;
Eric Moore635374e2009-03-09 01:21:12 -06004541
4542 /* check if this is end device */
4543 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
4544 if (!(_scsih_is_end_device(device_info))) {
4545 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4546 ioc->name, __FILE__, __LINE__, __func__);
4547 return -1;
4548 }
4549
Eric Moore635374e2009-03-09 01:21:12 -06004550
4551 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4552 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4553 sas_address);
4554 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4555
Kashyap, Desaib4344272010-03-17 16:24:14 +05304556 if (sas_device)
Eric Moore635374e2009-03-09 01:21:12 -06004557 return 0;
Eric Moore635374e2009-03-09 01:21:12 -06004558
4559 sas_device = kzalloc(sizeof(struct _sas_device),
4560 GFP_KERNEL);
4561 if (!sas_device) {
4562 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4563 ioc->name, __FILE__, __LINE__, __func__);
4564 return -1;
4565 }
4566
4567 sas_device->handle = handle;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304568 if (_scsih_get_sas_address(ioc, le16_to_cpu
4569 (sas_device_pg0.ParentDevHandle),
4570 &sas_device->sas_address_parent) != 0)
4571 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4572 ioc->name, __FILE__, __LINE__, __func__);
Eric Moore635374e2009-03-09 01:21:12 -06004573 sas_device->enclosure_handle =
4574 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4575 sas_device->slot =
4576 le16_to_cpu(sas_device_pg0.Slot);
4577 sas_device->device_info = device_info;
4578 sas_device->sas_address = sas_address;
Kashyap, Desai7fbae672010-06-17 13:45:17 +05304579 sas_device->phy = sas_device_pg0.PhyNum;
Eric Moore635374e2009-03-09 01:21:12 -06004580
4581 /* get enclosure_logical_id */
Kashyap, Desai15052c92009-08-07 19:33:17 +05304582 if (sas_device->enclosure_handle && !(mpt2sas_config_get_enclosure_pg0(
4583 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
4584 sas_device->enclosure_handle)))
Eric Moore635374e2009-03-09 01:21:12 -06004585 sas_device->enclosure_logical_id =
4586 le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
Eric Moore635374e2009-03-09 01:21:12 -06004587
4588 /* get device name */
4589 sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
4590
4591 if (ioc->wait_for_port_enable_to_complete)
4592 _scsih_sas_device_init_add(ioc, sas_device);
4593 else
4594 _scsih_sas_device_add(ioc, sas_device);
4595
4596 return 0;
4597}
4598
4599/**
Kashyap, Desai1278b112010-03-09 17:34:13 +05304600 * _scsih_remove_device - removing sas device object
4601 * @ioc: per adapter object
4602 * @sas_device_delete: the sas_device object
4603 *
4604 * Return nothing.
4605 */
4606static void
4607_scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
4608 struct _sas_device *sas_device)
4609{
4610 struct _sas_device sas_device_backup;
4611 struct MPT2SAS_TARGET *sas_target_priv_data;
Kashyap, Desai34a03be2009-08-20 13:23:19 +05304612
Kashyap, Desai1278b112010-03-09 17:34:13 +05304613 if (!sas_device)
4614 return;
Eric Moore635374e2009-03-09 01:21:12 -06004615
Kashyap, Desai1278b112010-03-09 17:34:13 +05304616 memcpy(&sas_device_backup, sas_device, sizeof(struct _sas_device));
Eric Moore635374e2009-03-09 01:21:12 -06004617 _scsih_sas_device_remove(ioc, sas_device);
4618
Kashyap, Desai1278b112010-03-09 17:34:13 +05304619 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter: "
4620 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
4621 sas_device_backup.handle, (unsigned long long)
4622 sas_device_backup.sas_address));
4623
4624 if (sas_device_backup.starget && sas_device_backup.starget->hostdata) {
4625 sas_target_priv_data = sas_device_backup.starget->hostdata;
4626 sas_target_priv_data->deleted = 1;
4627 }
4628
Kashyap, Desai1278b112010-03-09 17:34:13 +05304629 _scsih_ublock_io_device(ioc, sas_device_backup.handle);
4630
4631 mpt2sas_transport_port_remove(ioc, sas_device_backup.sas_address,
4632 sas_device_backup.sas_address_parent);
4633
4634 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), sas_addr"
4635 "(0x%016llx)\n", ioc->name, sas_device_backup.handle,
4636 (unsigned long long) sas_device_backup.sas_address);
4637
4638 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit: "
4639 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
4640 sas_device_backup.handle, (unsigned long long)
4641 sas_device_backup.sas_address));
Eric Moore635374e2009-03-09 01:21:12 -06004642}
4643
4644#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4645/**
4646 * _scsih_sas_topology_change_event_debug - debug for topology event
4647 * @ioc: per adapter object
4648 * @event_data: event data payload
4649 * Context: user.
4650 */
4651static void
4652_scsih_sas_topology_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4653 Mpi2EventDataSasTopologyChangeList_t *event_data)
4654{
4655 int i;
4656 u16 handle;
4657 u16 reason_code;
4658 u8 phy_number;
4659 char *status_str = NULL;
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304660 u8 link_rate, prev_link_rate;
Eric Moore635374e2009-03-09 01:21:12 -06004661
4662 switch (event_data->ExpStatus) {
4663 case MPI2_EVENT_SAS_TOPO_ES_ADDED:
4664 status_str = "add";
4665 break;
4666 case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
4667 status_str = "remove";
4668 break;
4669 case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304670 case 0:
Eric Moore635374e2009-03-09 01:21:12 -06004671 status_str = "responding";
4672 break;
4673 case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
4674 status_str = "remove delay";
4675 break;
4676 default:
4677 status_str = "unknown status";
4678 break;
4679 }
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304680 printk(MPT2SAS_INFO_FMT "sas topology change: (%s)\n",
Eric Moore635374e2009-03-09 01:21:12 -06004681 ioc->name, status_str);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304682 printk(KERN_INFO "\thandle(0x%04x), enclosure_handle(0x%04x) "
Eric Moore635374e2009-03-09 01:21:12 -06004683 "start_phy(%02d), count(%d)\n",
4684 le16_to_cpu(event_data->ExpanderDevHandle),
4685 le16_to_cpu(event_data->EnclosureHandle),
4686 event_data->StartPhyNum, event_data->NumEntries);
4687 for (i = 0; i < event_data->NumEntries; i++) {
4688 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4689 if (!handle)
4690 continue;
4691 phy_number = event_data->StartPhyNum + i;
4692 reason_code = event_data->PHY[i].PhyStatus &
4693 MPI2_EVENT_SAS_TOPO_RC_MASK;
4694 switch (reason_code) {
4695 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304696 status_str = "target add";
Eric Moore635374e2009-03-09 01:21:12 -06004697 break;
4698 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304699 status_str = "target remove";
Eric Moore635374e2009-03-09 01:21:12 -06004700 break;
4701 case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304702 status_str = "delay target remove";
Eric Moore635374e2009-03-09 01:21:12 -06004703 break;
4704 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304705 status_str = "link rate change";
Eric Moore635374e2009-03-09 01:21:12 -06004706 break;
4707 case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304708 status_str = "target responding";
Eric Moore635374e2009-03-09 01:21:12 -06004709 break;
4710 default:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304711 status_str = "unknown";
Eric Moore635374e2009-03-09 01:21:12 -06004712 break;
4713 }
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304714 link_rate = event_data->PHY[i].LinkRate >> 4;
4715 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304716 printk(KERN_INFO "\tphy(%02d), attached_handle(0x%04x): %s:"
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304717 " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
4718 handle, status_str, link_rate, prev_link_rate);
4719
Eric Moore635374e2009-03-09 01:21:12 -06004720 }
4721}
4722#endif
4723
4724/**
4725 * _scsih_sas_topology_change_event - handle topology changes
4726 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304727 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06004728 * Context: user.
4729 *
4730 */
4731static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304732_scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc,
Eric Moore635374e2009-03-09 01:21:12 -06004733 struct fw_event_work *fw_event)
4734{
4735 int i;
4736 u16 parent_handle, handle;
4737 u16 reason_code;
4738 u8 phy_number;
4739 struct _sas_node *sas_expander;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304740 struct _sas_device *sas_device;
4741 u64 sas_address;
Eric Moore635374e2009-03-09 01:21:12 -06004742 unsigned long flags;
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304743 u8 link_rate, prev_link_rate;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304744 Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
Eric Moore635374e2009-03-09 01:21:12 -06004745
4746#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4747 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
4748 _scsih_sas_topology_change_event_debug(ioc, event_data);
4749#endif
4750
Eric Moore3cb54692010-07-08 14:44:34 -06004751 if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304752 return;
4753
Eric Moore635374e2009-03-09 01:21:12 -06004754 if (!ioc->sas_hba.num_phys)
4755 _scsih_sas_host_add(ioc);
4756 else
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304757 _scsih_sas_host_refresh(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06004758
4759 if (fw_event->ignore) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304760 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring expander "
Eric Moore635374e2009-03-09 01:21:12 -06004761 "event\n", ioc->name));
4762 return;
4763 }
4764
4765 parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
4766
4767 /* handle expander add */
4768 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
4769 if (_scsih_expander_add(ioc, parent_handle) != 0)
4770 return;
4771
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304772 spin_lock_irqsave(&ioc->sas_node_lock, flags);
4773 sas_expander = mpt2sas_scsih_expander_find_by_handle(ioc,
4774 parent_handle);
4775 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
4776 if (sas_expander)
4777 sas_address = sas_expander->sas_address;
4778 else if (parent_handle < ioc->sas_hba.num_phys)
4779 sas_address = ioc->sas_hba.sas_address;
4780 else
4781 return;
4782
Eric Moore635374e2009-03-09 01:21:12 -06004783 /* handle siblings events */
4784 for (i = 0; i < event_data->NumEntries; i++) {
4785 if (fw_event->ignore) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304786 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "ignoring "
Eric Moore635374e2009-03-09 01:21:12 -06004787 "expander event\n", ioc->name));
4788 return;
4789 }
Eric Moore3cb54692010-07-08 14:44:34 -06004790 if (ioc->shost_recovery || ioc->remove_host ||
4791 ioc->pci_error_recovery)
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05304792 return;
Kashyap, Desai308609c2009-09-14 11:07:23 +05304793 phy_number = event_data->StartPhyNum + i;
4794 reason_code = event_data->PHY[i].PhyStatus &
4795 MPI2_EVENT_SAS_TOPO_RC_MASK;
4796 if ((event_data->PHY[i].PhyStatus &
4797 MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
4798 MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
Eric Moore635374e2009-03-09 01:21:12 -06004799 continue;
4800 handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
4801 if (!handle)
4802 continue;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304803 link_rate = event_data->PHY[i].LinkRate >> 4;
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304804 prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
Eric Moore635374e2009-03-09 01:21:12 -06004805 switch (reason_code) {
4806 case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304807
4808 if (link_rate == prev_link_rate)
4809 break;
4810
4811 mpt2sas_transport_update_links(ioc, sas_address,
4812 handle, phy_number, link_rate);
4813
Kashyap, Desaib4344272010-03-17 16:24:14 +05304814 if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
4815 break;
4816
4817 _scsih_check_device(ioc, handle);
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304818 break;
Eric Moore635374e2009-03-09 01:21:12 -06004819 case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304820
4821 mpt2sas_transport_update_links(ioc, sas_address,
4822 handle, phy_number, link_rate);
4823
Kashyap, Desaie7d59c12009-09-23 17:36:52 +05304824 _scsih_add_device(ioc, handle, phy_number, 0);
Eric Moore635374e2009-03-09 01:21:12 -06004825 break;
4826 case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304827
4828 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4829 sas_device = _scsih_sas_device_find_by_handle(ioc,
4830 handle);
4831 if (!sas_device) {
4832 spin_unlock_irqrestore(&ioc->sas_device_lock,
4833 flags);
4834 break;
4835 }
4836 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4837 _scsih_remove_device(ioc, sas_device);
Eric Moore635374e2009-03-09 01:21:12 -06004838 break;
4839 }
4840 }
4841
4842 /* handle expander removal */
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05304843 if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
4844 sas_expander)
4845 _scsih_expander_remove(ioc, sas_address);
Eric Moore635374e2009-03-09 01:21:12 -06004846
4847}
4848
4849#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4850/**
4851 * _scsih_sas_device_status_change_event_debug - debug for device event
4852 * @event_data: event data payload
4853 * Context: user.
4854 *
4855 * Return nothing.
4856 */
4857static void
4858_scsih_sas_device_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4859 Mpi2EventDataSasDeviceStatusChange_t *event_data)
4860{
4861 char *reason_str = NULL;
4862
4863 switch (event_data->ReasonCode) {
4864 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
4865 reason_str = "smart data";
4866 break;
4867 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
4868 reason_str = "unsupported device discovered";
4869 break;
4870 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
4871 reason_str = "internal device reset";
4872 break;
4873 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
4874 reason_str = "internal task abort";
4875 break;
4876 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
4877 reason_str = "internal task abort set";
4878 break;
4879 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
4880 reason_str = "internal clear task set";
4881 break;
4882 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
4883 reason_str = "internal query task";
4884 break;
4885 case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
4886 reason_str = "sata init failure";
4887 break;
4888 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
4889 reason_str = "internal device reset complete";
4890 break;
4891 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
4892 reason_str = "internal task abort complete";
4893 break;
4894 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
4895 reason_str = "internal async notification";
4896 break;
Kashyap, Desaiec6c2b42009-09-23 17:31:01 +05304897 case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
4898 reason_str = "expander reduced functionality";
4899 break;
4900 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
4901 reason_str = "expander reduced functionality complete";
4902 break;
Eric Moore635374e2009-03-09 01:21:12 -06004903 default:
4904 reason_str = "unknown reason";
4905 break;
4906 }
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304907 printk(MPT2SAS_INFO_FMT "device status change: (%s)\n"
Eric Moore635374e2009-03-09 01:21:12 -06004908 "\thandle(0x%04x), sas address(0x%016llx)", ioc->name,
4909 reason_str, le16_to_cpu(event_data->DevHandle),
4910 (unsigned long long)le64_to_cpu(event_data->SASAddress));
4911 if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304912 printk(MPT2SAS_INFO_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06004913 event_data->ASC, event_data->ASCQ);
4914 printk(KERN_INFO "\n");
4915}
4916#endif
4917
4918/**
4919 * _scsih_sas_device_status_change_event - handle device status change
4920 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304921 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06004922 * Context: user.
4923 *
4924 * Return nothing.
4925 */
4926static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304927_scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
4928 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06004929{
Kashyap, Desai8ffc4572009-09-23 17:35:41 +05304930 struct MPT2SAS_TARGET *target_priv_data;
4931 struct _sas_device *sas_device;
4932 __le64 sas_address;
4933 unsigned long flags;
4934 Mpi2EventDataSasDeviceStatusChange_t *event_data =
4935 fw_event->event_data;
4936
Eric Moore635374e2009-03-09 01:21:12 -06004937#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4938 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
Kashyap, Desai7b936b02009-09-25 11:44:41 +05304939 _scsih_sas_device_status_change_event_debug(ioc,
Kashyap, Desai8ffc4572009-09-23 17:35:41 +05304940 event_data);
Eric Moore635374e2009-03-09 01:21:12 -06004941#endif
Kashyap, Desai8ffc4572009-09-23 17:35:41 +05304942
Kashyap, Desaif891dcf2010-03-17 16:22:21 +05304943 if (event_data->ReasonCode !=
Kashyap, Desai8ffc4572009-09-23 17:35:41 +05304944 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
Kashyap, Desaif891dcf2010-03-17 16:22:21 +05304945 event_data->ReasonCode !=
4946 MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
Kashyap, Desai8ffc4572009-09-23 17:35:41 +05304947 return;
4948
4949 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4950 sas_address = le64_to_cpu(event_data->SASAddress);
4951 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4952 sas_address);
4953 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4954
4955 if (!sas_device || !sas_device->starget)
4956 return;
4957
4958 target_priv_data = sas_device->starget->hostdata;
4959 if (!target_priv_data)
4960 return;
4961
4962 if (event_data->ReasonCode ==
4963 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
4964 target_priv_data->tm_busy = 1;
4965 else
4966 target_priv_data->tm_busy = 0;
Eric Moore635374e2009-03-09 01:21:12 -06004967}
4968
4969#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
4970/**
4971 * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure event
4972 * @ioc: per adapter object
4973 * @event_data: event data payload
4974 * Context: user.
4975 *
4976 * Return nothing.
4977 */
4978static void
4979_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
4980 Mpi2EventDataSasEnclDevStatusChange_t *event_data)
4981{
4982 char *reason_str = NULL;
4983
4984 switch (event_data->ReasonCode) {
4985 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
4986 reason_str = "enclosure add";
4987 break;
4988 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
4989 reason_str = "enclosure remove";
4990 break;
4991 default:
4992 reason_str = "unknown reason";
4993 break;
4994 }
4995
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05304996 printk(MPT2SAS_INFO_FMT "enclosure status change: (%s)\n"
Eric Moore635374e2009-03-09 01:21:12 -06004997 "\thandle(0x%04x), enclosure logical id(0x%016llx)"
4998 " number slots(%d)\n", ioc->name, reason_str,
4999 le16_to_cpu(event_data->EnclosureHandle),
5000 (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
5001 le16_to_cpu(event_data->StartSlot));
5002}
5003#endif
5004
5005/**
5006 * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
5007 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305008 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005009 * Context: user.
5010 *
5011 * Return nothing.
5012 */
5013static void
5014_scsih_sas_enclosure_dev_status_change_event(struct MPT2SAS_ADAPTER *ioc,
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305015 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005016{
5017#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5018 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5019 _scsih_sas_enclosure_dev_status_change_event_debug(ioc,
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305020 fw_event->event_data);
Eric Moore635374e2009-03-09 01:21:12 -06005021#endif
5022}
5023
5024/**
5025 * _scsih_sas_broadcast_primative_event - handle broadcast events
5026 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305027 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005028 * Context: user.
5029 *
5030 * Return nothing.
5031 */
5032static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305033_scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc,
5034 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005035{
5036 struct scsi_cmnd *scmd;
5037 u16 smid, handle;
5038 u32 lun;
5039 struct MPT2SAS_DEVICE *sas_device_priv_data;
5040 u32 termination_count;
5041 u32 query_count;
5042 Mpi2SCSITaskManagementReply_t *mpi_reply;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305043#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5044 Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
5045#endif
Kashyap, Desai463217b2009-10-05 15:53:06 +05305046 u16 ioc_status;
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305047 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "broadcast primative: "
Eric Moore635374e2009-03-09 01:21:12 -06005048 "phy number(%d), width(%d)\n", ioc->name, event_data->PhyNum,
5049 event_data->PortWidth));
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305050 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06005051 __func__));
5052
Eric Moore635374e2009-03-09 01:21:12 -06005053 termination_count = 0;
5054 query_count = 0;
5055 mpi_reply = ioc->tm_cmds.reply;
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05305056 for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
Eric Moore635374e2009-03-09 01:21:12 -06005057 scmd = _scsih_scsi_lookup_get(ioc, smid);
5058 if (!scmd)
5059 continue;
5060 sas_device_priv_data = scmd->device->hostdata;
5061 if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
5062 continue;
5063 /* skip hidden raid components */
5064 if (sas_device_priv_data->sas_target->flags &
5065 MPT_TARGET_FLAGS_RAID_COMPONENT)
5066 continue;
5067 /* skip volumes */
5068 if (sas_device_priv_data->sas_target->flags &
5069 MPT_TARGET_FLAGS_VOLUME)
5070 continue;
5071
5072 handle = sas_device_priv_data->sas_target->handle;
5073 lun = sas_device_priv_data->lun;
5074 query_count++;
5075
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05305076 mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5077 MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, NULL);
Eric Moore8901cbb2009-04-21 15:41:32 -06005078 ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
Kashyap, Desai463217b2009-10-05 15:53:06 +05305079 ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
5080 & MPI2_IOCSTATUS_MASK;
5081 if ((ioc_status == MPI2_IOCSTATUS_SUCCESS) &&
Eric Moore635374e2009-03-09 01:21:12 -06005082 (mpi_reply->ResponseCode ==
5083 MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
5084 mpi_reply->ResponseCode ==
5085 MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC))
5086 continue;
5087
Kashyap, Desai8ed9a032010-03-17 16:25:59 +05305088 mpt2sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
5089 MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30, NULL);
Eric Moore635374e2009-03-09 01:21:12 -06005090 termination_count += le32_to_cpu(mpi_reply->TerminationCount);
5091 }
Eric Moore635374e2009-03-09 01:21:12 -06005092 ioc->broadcast_aen_busy = 0;
Eric Moore635374e2009-03-09 01:21:12 -06005093
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305094 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT
Eric Moore635374e2009-03-09 01:21:12 -06005095 "%s - exit, query_count = %d termination_count = %d\n",
5096 ioc->name, __func__, query_count, termination_count));
5097}
5098
5099/**
5100 * _scsih_sas_discovery_event - handle discovery events
5101 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305102 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005103 * Context: user.
5104 *
5105 * Return nothing.
5106 */
5107static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305108_scsih_sas_discovery_event(struct MPT2SAS_ADAPTER *ioc,
5109 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005110{
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305111 Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
5112
Eric Moore635374e2009-03-09 01:21:12 -06005113#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5114 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305115 printk(MPT2SAS_INFO_FMT "discovery event: (%s)", ioc->name,
Eric Moore635374e2009-03-09 01:21:12 -06005116 (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
5117 "start" : "stop");
5118 if (event_data->DiscoveryStatus)
Kashyap, Desai595bb0b2009-09-14 11:02:48 +05305119 printk("discovery_status(0x%08x)",
5120 le32_to_cpu(event_data->DiscoveryStatus));
Eric Moore635374e2009-03-09 01:21:12 -06005121 printk("\n");
5122 }
5123#endif
5124
5125 if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
5126 !ioc->sas_hba.num_phys)
5127 _scsih_sas_host_add(ioc);
5128}
5129
5130/**
5131 * _scsih_reprobe_lun - reprobing lun
5132 * @sdev: scsi device struct
5133 * @no_uld_attach: sdev->no_uld_attach flag setting
5134 *
5135 **/
5136static void
5137_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
5138{
5139 int rc;
5140
5141 sdev->no_uld_attach = no_uld_attach ? 1 : 0;
5142 sdev_printk(KERN_INFO, sdev, "%s raid component\n",
5143 sdev->no_uld_attach ? "hidding" : "exposing");
5144 rc = scsi_device_reprobe(sdev);
5145}
5146
5147/**
5148 * _scsih_reprobe_target - reprobing target
5149 * @starget: scsi target struct
5150 * @no_uld_attach: sdev->no_uld_attach flag setting
5151 *
5152 * Note: no_uld_attach flag determines whether the disk device is attached
5153 * to block layer. A value of `1` means to not attach.
5154 **/
5155static void
5156_scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach)
5157{
5158 struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata;
5159
5160 if (no_uld_attach)
5161 sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
5162 else
5163 sas_target_priv_data->flags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
5164
5165 starget_for_each_device(starget, no_uld_attach ? (void *)1 : NULL,
5166 _scsih_reprobe_lun);
5167}
5168/**
5169 * _scsih_sas_volume_add - add new volume
5170 * @ioc: per adapter object
5171 * @element: IR config element data
5172 * Context: user.
5173 *
5174 * Return nothing.
5175 */
5176static void
5177_scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc,
5178 Mpi2EventIrConfigElement_t *element)
5179{
5180 struct _raid_device *raid_device;
5181 unsigned long flags;
5182 u64 wwid;
5183 u16 handle = le16_to_cpu(element->VolDevHandle);
5184 int rc;
5185
Eric Moore635374e2009-03-09 01:21:12 -06005186 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
5187 if (!wwid) {
5188 printk(MPT2SAS_ERR_FMT
5189 "failure at %s:%d/%s()!\n", ioc->name,
5190 __FILE__, __LINE__, __func__);
5191 return;
5192 }
5193
5194 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5195 raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
5196 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5197
5198 if (raid_device)
5199 return;
5200
5201 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5202 if (!raid_device) {
5203 printk(MPT2SAS_ERR_FMT
5204 "failure at %s:%d/%s()!\n", ioc->name,
5205 __FILE__, __LINE__, __func__);
5206 return;
5207 }
5208
5209 raid_device->id = ioc->sas_id++;
5210 raid_device->channel = RAID_CHANNEL;
5211 raid_device->handle = handle;
5212 raid_device->wwid = wwid;
5213 _scsih_raid_device_add(ioc, raid_device);
5214 if (!ioc->wait_for_port_enable_to_complete) {
5215 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5216 raid_device->id, 0);
5217 if (rc)
5218 _scsih_raid_device_remove(ioc, raid_device);
5219 } else
5220 _scsih_determine_boot_device(ioc, raid_device, 1);
5221}
5222
5223/**
5224 * _scsih_sas_volume_delete - delete volume
5225 * @ioc: per adapter object
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305226 * @handle: volume device handle
Eric Moore635374e2009-03-09 01:21:12 -06005227 * Context: user.
5228 *
5229 * Return nothing.
5230 */
5231static void
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305232_scsih_sas_volume_delete(struct MPT2SAS_ADAPTER *ioc, u16 handle)
Eric Moore635374e2009-03-09 01:21:12 -06005233{
5234 struct _raid_device *raid_device;
Eric Moore635374e2009-03-09 01:21:12 -06005235 unsigned long flags;
5236 struct MPT2SAS_TARGET *sas_target_priv_data;
5237
Eric Moore635374e2009-03-09 01:21:12 -06005238 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5239 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5240 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5241 if (!raid_device)
5242 return;
5243 if (raid_device->starget) {
5244 sas_target_priv_data = raid_device->starget->hostdata;
5245 sas_target_priv_data->deleted = 1;
5246 scsi_remove_target(&raid_device->starget->dev);
5247 }
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305248 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
5249 "(0x%016llx)\n", ioc->name, raid_device->handle,
5250 (unsigned long long) raid_device->wwid);
Eric Moore635374e2009-03-09 01:21:12 -06005251 _scsih_raid_device_remove(ioc, raid_device);
5252}
5253
5254/**
5255 * _scsih_sas_pd_expose - expose pd component to /dev/sdX
5256 * @ioc: per adapter object
5257 * @element: IR config element data
5258 * Context: user.
5259 *
5260 * Return nothing.
5261 */
5262static void
5263_scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
5264 Mpi2EventIrConfigElement_t *element)
5265{
5266 struct _sas_device *sas_device;
5267 unsigned long flags;
5268 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5269
5270 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5271 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5272 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5273 if (!sas_device)
5274 return;
5275
5276 /* exposing raid component */
5277 sas_device->volume_handle = 0;
5278 sas_device->volume_wwid = 0;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305279 clear_bit(handle, ioc->pd_handles);
Eric Moore635374e2009-03-09 01:21:12 -06005280 _scsih_reprobe_target(sas_device->starget, 0);
5281}
5282
5283/**
5284 * _scsih_sas_pd_hide - hide pd component from /dev/sdX
5285 * @ioc: per adapter object
5286 * @element: IR config element data
5287 * Context: user.
5288 *
5289 * Return nothing.
5290 */
5291static void
5292_scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
5293 Mpi2EventIrConfigElement_t *element)
5294{
5295 struct _sas_device *sas_device;
5296 unsigned long flags;
5297 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5298
5299 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5300 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5301 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5302 if (!sas_device)
5303 return;
5304
5305 /* hiding raid component */
5306 mpt2sas_config_get_volume_handle(ioc, handle,
5307 &sas_device->volume_handle);
5308 mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle,
5309 &sas_device->volume_wwid);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305310 set_bit(handle, ioc->pd_handles);
Eric Moore635374e2009-03-09 01:21:12 -06005311 _scsih_reprobe_target(sas_device->starget, 1);
5312}
5313
5314/**
5315 * _scsih_sas_pd_delete - delete pd component
5316 * @ioc: per adapter object
5317 * @element: IR config element data
5318 * Context: user.
5319 *
5320 * Return nothing.
5321 */
5322static void
5323_scsih_sas_pd_delete(struct MPT2SAS_ADAPTER *ioc,
5324 Mpi2EventIrConfigElement_t *element)
5325{
5326 struct _sas_device *sas_device;
5327 unsigned long flags;
5328 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
5329
5330 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5331 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5332 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5333 if (!sas_device)
5334 return;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05305335 _scsih_remove_device(ioc, sas_device);
Eric Moore635374e2009-03-09 01:21:12 -06005336}
5337
5338/**
5339 * _scsih_sas_pd_add - remove pd component
5340 * @ioc: per adapter object
5341 * @element: IR config element data
5342 * Context: user.
5343 *
5344 * Return nothing.
5345 */
5346static void
5347_scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
5348 Mpi2EventIrConfigElement_t *element)
5349{
5350 struct _sas_device *sas_device;
5351 unsigned long flags;
5352 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
Kashyap, Desai62727a72009-08-07 19:35:18 +05305353 Mpi2ConfigReply_t mpi_reply;
5354 Mpi2SasDevicePage0_t sas_device_pg0;
5355 u32 ioc_status;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05305356 u64 sas_address;
5357 u16 parent_handle;
Eric Moore635374e2009-03-09 01:21:12 -06005358
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305359 set_bit(handle, ioc->pd_handles);
5360
Eric Moore635374e2009-03-09 01:21:12 -06005361 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5362 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5363 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305364 if (sas_device)
Kashyap, Desai62727a72009-08-07 19:35:18 +05305365 return;
Kashyap, Desai62727a72009-08-07 19:35:18 +05305366
5367 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5368 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
5369 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5370 ioc->name, __FILE__, __LINE__, __func__);
5371 return;
5372 }
5373
5374 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5375 MPI2_IOCSTATUS_MASK;
5376 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5377 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5378 ioc->name, __FILE__, __LINE__, __func__);
5379 return;
5380 }
5381
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05305382 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5383 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5384 mpt2sas_transport_update_links(ioc, sas_address, handle,
5385 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
Kashyap, Desai62727a72009-08-07 19:35:18 +05305386
5387 _scsih_add_device(ioc, handle, 0, 1);
Eric Moore635374e2009-03-09 01:21:12 -06005388}
5389
5390#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5391/**
5392 * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
5393 * @ioc: per adapter object
5394 * @event_data: event data payload
5395 * Context: user.
5396 *
5397 * Return nothing.
5398 */
5399static void
5400_scsih_sas_ir_config_change_event_debug(struct MPT2SAS_ADAPTER *ioc,
5401 Mpi2EventDataIrConfigChangeList_t *event_data)
5402{
5403 Mpi2EventIrConfigElement_t *element;
5404 u8 element_type;
5405 int i;
5406 char *reason_str = NULL, *element_str = NULL;
5407
5408 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5409
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305410 printk(MPT2SAS_INFO_FMT "raid config change: (%s), elements(%d)\n",
Eric Moore635374e2009-03-09 01:21:12 -06005411 ioc->name, (le32_to_cpu(event_data->Flags) &
5412 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
5413 "foreign" : "native", event_data->NumElements);
5414 for (i = 0; i < event_data->NumElements; i++, element++) {
5415 switch (element->ReasonCode) {
5416 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
5417 reason_str = "add";
5418 break;
5419 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
5420 reason_str = "remove";
5421 break;
5422 case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
5423 reason_str = "no change";
5424 break;
5425 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5426 reason_str = "hide";
5427 break;
5428 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5429 reason_str = "unhide";
5430 break;
5431 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5432 reason_str = "volume_created";
5433 break;
5434 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5435 reason_str = "volume_deleted";
5436 break;
5437 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5438 reason_str = "pd_created";
5439 break;
5440 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5441 reason_str = "pd_deleted";
5442 break;
5443 default:
5444 reason_str = "unknown reason";
5445 break;
5446 }
5447 element_type = le16_to_cpu(element->ElementFlags) &
5448 MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
5449 switch (element_type) {
5450 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
5451 element_str = "volume";
5452 break;
5453 case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
5454 element_str = "phys disk";
5455 break;
5456 case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
5457 element_str = "hot spare";
5458 break;
5459 default:
5460 element_str = "unknown element";
5461 break;
5462 }
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305463 printk(KERN_INFO "\t(%s:%s), vol handle(0x%04x), "
Eric Moore635374e2009-03-09 01:21:12 -06005464 "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
5465 reason_str, le16_to_cpu(element->VolDevHandle),
5466 le16_to_cpu(element->PhysDiskDevHandle),
5467 element->PhysDiskNum);
5468 }
5469}
5470#endif
5471
5472/**
5473 * _scsih_sas_ir_config_change_event - handle ir configuration change events
5474 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305475 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005476 * Context: user.
5477 *
5478 * Return nothing.
5479 */
5480static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305481_scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc,
5482 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005483{
5484 Mpi2EventIrConfigElement_t *element;
5485 int i;
Kashyap, Desai62727a72009-08-07 19:35:18 +05305486 u8 foreign_config;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305487 Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
Eric Moore635374e2009-03-09 01:21:12 -06005488
5489#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5490 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
5491 _scsih_sas_ir_config_change_event_debug(ioc, event_data);
5492
5493#endif
Kashyap, Desai62727a72009-08-07 19:35:18 +05305494 foreign_config = (le32_to_cpu(event_data->Flags) &
5495 MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
Eric Moore635374e2009-03-09 01:21:12 -06005496
5497 element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
5498 for (i = 0; i < event_data->NumElements; i++, element++) {
5499
5500 switch (element->ReasonCode) {
5501 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
5502 case MPI2_EVENT_IR_CHANGE_RC_ADDED:
Kashyap, Desai62727a72009-08-07 19:35:18 +05305503 if (!foreign_config)
5504 _scsih_sas_volume_add(ioc, element);
Eric Moore635374e2009-03-09 01:21:12 -06005505 break;
5506 case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
5507 case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
Kashyap, Desai62727a72009-08-07 19:35:18 +05305508 if (!foreign_config)
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305509 _scsih_sas_volume_delete(ioc,
5510 le16_to_cpu(element->VolDevHandle));
Eric Moore635374e2009-03-09 01:21:12 -06005511 break;
5512 case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
5513 _scsih_sas_pd_hide(ioc, element);
5514 break;
5515 case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
5516 _scsih_sas_pd_expose(ioc, element);
5517 break;
5518 case MPI2_EVENT_IR_CHANGE_RC_HIDE:
5519 _scsih_sas_pd_add(ioc, element);
5520 break;
5521 case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
5522 _scsih_sas_pd_delete(ioc, element);
5523 break;
5524 }
5525 }
5526}
5527
5528/**
5529 * _scsih_sas_ir_volume_event - IR volume event
5530 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305531 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005532 * Context: user.
5533 *
5534 * Return nothing.
5535 */
5536static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305537_scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc,
5538 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005539{
5540 u64 wwid;
5541 unsigned long flags;
5542 struct _raid_device *raid_device;
5543 u16 handle;
5544 u32 state;
5545 int rc;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305546 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
Eric Moore635374e2009-03-09 01:21:12 -06005547
5548 if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
5549 return;
5550
5551 handle = le16_to_cpu(event_data->VolDevHandle);
5552 state = le32_to_cpu(event_data->NewValue);
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305553 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
Eric Moore635374e2009-03-09 01:21:12 -06005554 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
5555 le32_to_cpu(event_data->PreviousValue), state));
5556
Eric Moore635374e2009-03-09 01:21:12 -06005557 switch (state) {
5558 case MPI2_RAID_VOL_STATE_MISSING:
5559 case MPI2_RAID_VOL_STATE_FAILED:
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305560 _scsih_sas_volume_delete(ioc, handle);
Eric Moore635374e2009-03-09 01:21:12 -06005561 break;
5562
5563 case MPI2_RAID_VOL_STATE_ONLINE:
5564 case MPI2_RAID_VOL_STATE_DEGRADED:
5565 case MPI2_RAID_VOL_STATE_OPTIMAL:
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305566
5567 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5568 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5569 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5570
Eric Moore635374e2009-03-09 01:21:12 -06005571 if (raid_device)
5572 break;
5573
5574 mpt2sas_config_get_volume_wwid(ioc, handle, &wwid);
5575 if (!wwid) {
5576 printk(MPT2SAS_ERR_FMT
5577 "failure at %s:%d/%s()!\n", ioc->name,
5578 __FILE__, __LINE__, __func__);
5579 break;
5580 }
5581
5582 raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
5583 if (!raid_device) {
5584 printk(MPT2SAS_ERR_FMT
5585 "failure at %s:%d/%s()!\n", ioc->name,
5586 __FILE__, __LINE__, __func__);
5587 break;
5588 }
5589
5590 raid_device->id = ioc->sas_id++;
5591 raid_device->channel = RAID_CHANNEL;
5592 raid_device->handle = handle;
5593 raid_device->wwid = wwid;
5594 _scsih_raid_device_add(ioc, raid_device);
5595 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
5596 raid_device->id, 0);
5597 if (rc)
5598 _scsih_raid_device_remove(ioc, raid_device);
5599 break;
5600
5601 case MPI2_RAID_VOL_STATE_INITIALIZING:
5602 default:
5603 break;
5604 }
5605}
5606
5607/**
5608 * _scsih_sas_ir_physical_disk_event - PD event
5609 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305610 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005611 * Context: user.
5612 *
5613 * Return nothing.
5614 */
5615static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305616_scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
5617 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005618{
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05305619 u16 handle, parent_handle;
Eric Moore635374e2009-03-09 01:21:12 -06005620 u32 state;
5621 struct _sas_device *sas_device;
5622 unsigned long flags;
Kashyap, Desai62727a72009-08-07 19:35:18 +05305623 Mpi2ConfigReply_t mpi_reply;
5624 Mpi2SasDevicePage0_t sas_device_pg0;
5625 u32 ioc_status;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305626 Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05305627 u64 sas_address;
Eric Moore635374e2009-03-09 01:21:12 -06005628
5629 if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
5630 return;
5631
5632 handle = le16_to_cpu(event_data->PhysDiskDevHandle);
5633 state = le32_to_cpu(event_data->NewValue);
5634
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305635 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: handle(0x%04x), "
Eric Moore635374e2009-03-09 01:21:12 -06005636 "old(0x%08x), new(0x%08x)\n", ioc->name, __func__, handle,
5637 le32_to_cpu(event_data->PreviousValue), state));
5638
Eric Moore635374e2009-03-09 01:21:12 -06005639 switch (state) {
Eric Moore635374e2009-03-09 01:21:12 -06005640 case MPI2_RAID_PD_STATE_ONLINE:
5641 case MPI2_RAID_PD_STATE_DEGRADED:
5642 case MPI2_RAID_PD_STATE_REBUILDING:
5643 case MPI2_RAID_PD_STATE_OPTIMAL:
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305644 case MPI2_RAID_PD_STATE_HOT_SPARE:
5645
5646 set_bit(handle, ioc->pd_handles);
5647
5648 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5649 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5650 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5651
5652 if (sas_device)
Kashyap, Desai62727a72009-08-07 19:35:18 +05305653 return;
Kashyap, Desai62727a72009-08-07 19:35:18 +05305654
5655 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
5656 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
5657 handle))) {
5658 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5659 ioc->name, __FILE__, __LINE__, __func__);
5660 return;
5661 }
5662
5663 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5664 MPI2_IOCSTATUS_MASK;
5665 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5666 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
5667 ioc->name, __FILE__, __LINE__, __func__);
5668 return;
5669 }
5670
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05305671 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
5672 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
5673 mpt2sas_transport_update_links(ioc, sas_address, handle,
5674 sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
Kashyap, Desai62727a72009-08-07 19:35:18 +05305675
5676 _scsih_add_device(ioc, handle, 0, 1);
5677
Eric Moore635374e2009-03-09 01:21:12 -06005678 break;
5679
Kashyap, Desai62727a72009-08-07 19:35:18 +05305680 case MPI2_RAID_PD_STATE_OFFLINE:
Eric Moore635374e2009-03-09 01:21:12 -06005681 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
5682 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
Eric Moore635374e2009-03-09 01:21:12 -06005683 default:
5684 break;
5685 }
5686}
5687
5688#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5689/**
5690 * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
5691 * @ioc: per adapter object
5692 * @event_data: event data payload
5693 * Context: user.
5694 *
5695 * Return nothing.
5696 */
5697static void
5698_scsih_sas_ir_operation_status_event_debug(struct MPT2SAS_ADAPTER *ioc,
5699 Mpi2EventDataIrOperationStatus_t *event_data)
5700{
5701 char *reason_str = NULL;
5702
5703 switch (event_data->RAIDOperation) {
5704 case MPI2_EVENT_IR_RAIDOP_RESYNC:
5705 reason_str = "resync";
5706 break;
5707 case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
5708 reason_str = "online capacity expansion";
5709 break;
5710 case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
5711 reason_str = "consistency check";
5712 break;
Kashyap, Desaiec6c2b42009-09-23 17:31:01 +05305713 case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
5714 reason_str = "background init";
5715 break;
5716 case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
5717 reason_str = "make data consistent";
Eric Moore635374e2009-03-09 01:21:12 -06005718 break;
5719 }
5720
Kashyap, Desaiec6c2b42009-09-23 17:31:01 +05305721 if (!reason_str)
5722 return;
5723
Eric Moore635374e2009-03-09 01:21:12 -06005724 printk(MPT2SAS_INFO_FMT "raid operational status: (%s)"
5725 "\thandle(0x%04x), percent complete(%d)\n",
5726 ioc->name, reason_str,
5727 le16_to_cpu(event_data->VolDevHandle),
5728 event_data->PercentComplete);
5729}
5730#endif
5731
5732/**
5733 * _scsih_sas_ir_operation_status_event - handle RAID operation events
5734 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305735 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005736 * Context: user.
5737 *
5738 * Return nothing.
5739 */
5740static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305741_scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
5742 struct fw_event_work *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005743{
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05305744 Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
5745 static struct _raid_device *raid_device;
5746 unsigned long flags;
5747 u16 handle;
5748
Eric Moore635374e2009-03-09 01:21:12 -06005749#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5750 if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305751 _scsih_sas_ir_operation_status_event_debug(ioc,
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05305752 event_data);
Eric Moore635374e2009-03-09 01:21:12 -06005753#endif
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05305754
5755 /* code added for raid transport support */
5756 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
5757
5758 handle = le16_to_cpu(event_data->VolDevHandle);
5759
5760 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5761 raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
5762 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5763
5764 if (!raid_device)
5765 return;
5766
5767 if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC)
5768 raid_device->percent_complete =
5769 event_data->PercentComplete;
5770 }
Eric Moore635374e2009-03-09 01:21:12 -06005771}
5772
5773/**
5774 * _scsih_task_set_full - handle task set full
5775 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305776 * @fw_event: The fw_event_work object
Eric Moore635374e2009-03-09 01:21:12 -06005777 * Context: user.
5778 *
5779 * Throttle back qdepth.
5780 */
5781static void
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305782_scsih_task_set_full(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
5783 *fw_event)
Eric Moore635374e2009-03-09 01:21:12 -06005784{
5785 unsigned long flags;
5786 struct _sas_device *sas_device;
5787 static struct _raid_device *raid_device;
5788 struct scsi_device *sdev;
5789 int depth;
5790 u16 current_depth;
5791 u16 handle;
5792 int id, channel;
5793 u64 sas_address;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05305794 Mpi2EventDataTaskSetFull_t *event_data = fw_event->event_data;
Eric Moore635374e2009-03-09 01:21:12 -06005795
5796 current_depth = le16_to_cpu(event_data->CurrentDepth);
5797 handle = le16_to_cpu(event_data->DevHandle);
5798 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5799 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
5800 if (!sas_device) {
5801 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5802 return;
5803 }
5804 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5805 id = sas_device->id;
5806 channel = sas_device->channel;
5807 sas_address = sas_device->sas_address;
5808
5809 /* if hidden raid component, then change to volume characteristics */
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05305810 if (test_bit(handle, ioc->pd_handles) && sas_device->volume_handle) {
Eric Moore635374e2009-03-09 01:21:12 -06005811 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5812 raid_device = _scsih_raid_device_find_by_handle(
5813 ioc, sas_device->volume_handle);
5814 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
5815 if (raid_device) {
5816 id = raid_device->id;
5817 channel = raid_device->channel;
5818 handle = raid_device->handle;
5819 sas_address = raid_device->wwid;
5820 }
5821 }
5822
5823 if (ioc->logging_level & MPT_DEBUG_TASK_SET_FULL)
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05305824 starget_printk(KERN_INFO, sas_device->starget, "task set "
Eric Moore635374e2009-03-09 01:21:12 -06005825 "full: handle(0x%04x), sas_addr(0x%016llx), depth(%d)\n",
5826 handle, (unsigned long long)sas_address, current_depth);
5827
5828 shost_for_each_device(sdev, ioc->shost) {
5829 if (sdev->id == id && sdev->channel == channel) {
5830 if (current_depth > sdev->queue_depth) {
5831 if (ioc->logging_level &
5832 MPT_DEBUG_TASK_SET_FULL)
5833 sdev_printk(KERN_INFO, sdev, "strange "
5834 "observation, the queue depth is"
5835 " (%d) meanwhile fw queue depth "
5836 "is (%d)\n", sdev->queue_depth,
5837 current_depth);
5838 continue;
5839 }
5840 depth = scsi_track_queue_full(sdev,
5841 current_depth - 1);
5842 if (depth > 0)
5843 sdev_printk(KERN_INFO, sdev, "Queue depth "
5844 "reduced to (%d)\n", depth);
5845 else if (depth < 0)
5846 sdev_printk(KERN_INFO, sdev, "Tagged Command "
5847 "Queueing is being disabled\n");
5848 else if (depth == 0)
5849 if (ioc->logging_level &
5850 MPT_DEBUG_TASK_SET_FULL)
5851 sdev_printk(KERN_INFO, sdev,
5852 "Queue depth not changed yet\n");
5853 }
5854 }
5855}
5856
5857/**
Kashyap, Desai14695852010-03-30 10:52:44 +05305858 * _scsih_prep_device_scan - initialize parameters prior to device scan
5859 * @ioc: per adapter object
5860 *
5861 * Set the deleted flag prior to device scan. If the device is found during
5862 * the scan, then we clear the deleted flag.
5863 */
5864static void
5865_scsih_prep_device_scan(struct MPT2SAS_ADAPTER *ioc)
5866{
5867 struct MPT2SAS_DEVICE *sas_device_priv_data;
5868 struct scsi_device *sdev;
5869
5870 shost_for_each_device(sdev, ioc->shost) {
5871 sas_device_priv_data = sdev->hostdata;
5872 if (sas_device_priv_data && sas_device_priv_data->sas_target)
5873 sas_device_priv_data->sas_target->deleted = 1;
5874 }
5875}
5876
5877/**
Eric Moore635374e2009-03-09 01:21:12 -06005878 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
5879 * @ioc: per adapter object
5880 * @sas_address: sas address
5881 * @slot: enclosure slot id
5882 * @handle: device handle
5883 *
5884 * After host reset, find out whether devices are still responding.
5885 * Used in _scsi_remove_unresponsive_sas_devices.
5886 *
5887 * Return nothing.
5888 */
5889static void
5890_scsih_mark_responding_sas_device(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
5891 u16 slot, u16 handle)
5892{
5893 struct MPT2SAS_TARGET *sas_target_priv_data;
5894 struct scsi_target *starget;
5895 struct _sas_device *sas_device;
5896 unsigned long flags;
5897
5898 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5899 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
5900 if (sas_device->sas_address == sas_address &&
5901 sas_device->slot == slot && sas_device->starget) {
5902 sas_device->responding = 1;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05305903 starget = sas_device->starget;
Kashyap, Desai14695852010-03-30 10:52:44 +05305904 if (starget && starget->hostdata) {
5905 sas_target_priv_data = starget->hostdata;
5906 sas_target_priv_data->tm_busy = 0;
5907 sas_target_priv_data->deleted = 0;
5908 } else
5909 sas_target_priv_data = NULL;
Eric Moore635374e2009-03-09 01:21:12 -06005910 starget_printk(KERN_INFO, sas_device->starget,
5911 "handle(0x%04x), sas_addr(0x%016llx), enclosure "
5912 "logical id(0x%016llx), slot(%d)\n", handle,
5913 (unsigned long long)sas_device->sas_address,
5914 (unsigned long long)
5915 sas_device->enclosure_logical_id,
5916 sas_device->slot);
5917 if (sas_device->handle == handle)
5918 goto out;
5919 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
5920 sas_device->handle);
5921 sas_device->handle = handle;
Kashyap, Desai14695852010-03-30 10:52:44 +05305922 if (sas_target_priv_data)
5923 sas_target_priv_data->handle = handle;
Eric Moore635374e2009-03-09 01:21:12 -06005924 goto out;
5925 }
5926 }
5927 out:
5928 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5929}
5930
5931/**
5932 * _scsih_search_responding_sas_devices -
5933 * @ioc: per adapter object
5934 *
5935 * After host reset, find out whether devices are still responding.
5936 * If not remove.
5937 *
5938 * Return nothing.
5939 */
5940static void
5941_scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
5942{
5943 Mpi2SasDevicePage0_t sas_device_pg0;
5944 Mpi2ConfigReply_t mpi_reply;
5945 u16 ioc_status;
5946 __le64 sas_address;
5947 u16 handle;
5948 u32 device_info;
5949 u16 slot;
5950
5951 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
5952
5953 if (list_empty(&ioc->sas_device_list))
5954 return;
5955
5956 handle = 0xFFFF;
5957 while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
5958 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
5959 handle))) {
5960 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
5961 MPI2_IOCSTATUS_MASK;
5962 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
5963 break;
5964 handle = le16_to_cpu(sas_device_pg0.DevHandle);
5965 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
5966 if (!(_scsih_is_end_device(device_info)))
5967 continue;
5968 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5969 slot = le16_to_cpu(sas_device_pg0.Slot);
5970 _scsih_mark_responding_sas_device(ioc, sas_address, slot,
5971 handle);
5972 }
5973}
5974
5975/**
5976 * _scsih_mark_responding_raid_device - mark a raid_device as responding
5977 * @ioc: per adapter object
5978 * @wwid: world wide identifier for raid volume
5979 * @handle: device handle
5980 *
5981 * After host reset, find out whether devices are still responding.
5982 * Used in _scsi_remove_unresponsive_raid_devices.
5983 *
5984 * Return nothing.
5985 */
5986static void
5987_scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
5988 u16 handle)
5989{
5990 struct MPT2SAS_TARGET *sas_target_priv_data;
5991 struct scsi_target *starget;
5992 struct _raid_device *raid_device;
5993 unsigned long flags;
5994
5995 spin_lock_irqsave(&ioc->raid_device_lock, flags);
5996 list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
5997 if (raid_device->wwid == wwid && raid_device->starget) {
Kashyap, Desai14695852010-03-30 10:52:44 +05305998 starget = raid_device->starget;
5999 if (starget && starget->hostdata) {
6000 sas_target_priv_data = starget->hostdata;
6001 sas_target_priv_data->deleted = 0;
6002 } else
6003 sas_target_priv_data = NULL;
Eric Moore635374e2009-03-09 01:21:12 -06006004 raid_device->responding = 1;
6005 starget_printk(KERN_INFO, raid_device->starget,
6006 "handle(0x%04x), wwid(0x%016llx)\n", handle,
6007 (unsigned long long)raid_device->wwid);
6008 if (raid_device->handle == handle)
6009 goto out;
6010 printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
6011 raid_device->handle);
6012 raid_device->handle = handle;
Kashyap, Desai14695852010-03-30 10:52:44 +05306013 if (sas_target_priv_data)
6014 sas_target_priv_data->handle = handle;
Eric Moore635374e2009-03-09 01:21:12 -06006015 goto out;
6016 }
6017 }
6018 out:
6019 spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
6020}
6021
6022/**
6023 * _scsih_search_responding_raid_devices -
6024 * @ioc: per adapter object
6025 *
6026 * After host reset, find out whether devices are still responding.
6027 * If not remove.
6028 *
6029 * Return nothing.
6030 */
6031static void
6032_scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc)
6033{
6034 Mpi2RaidVolPage1_t volume_pg1;
Kashyap, Desaid417d1c2010-06-17 13:48:10 +05306035 Mpi2RaidVolPage0_t volume_pg0;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05306036 Mpi2RaidPhysDiskPage0_t pd_pg0;
Eric Moore635374e2009-03-09 01:21:12 -06006037 Mpi2ConfigReply_t mpi_reply;
6038 u16 ioc_status;
6039 u16 handle;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05306040 u8 phys_disk_num;
Eric Moore635374e2009-03-09 01:21:12 -06006041
6042 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
6043
6044 if (list_empty(&ioc->raid_device_list))
6045 return;
6046
6047 handle = 0xFFFF;
6048 while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
6049 &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
6050 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6051 MPI2_IOCSTATUS_MASK;
6052 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6053 break;
6054 handle = le16_to_cpu(volume_pg1.DevHandle);
Kashyap, Desaid417d1c2010-06-17 13:48:10 +05306055
6056 if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
6057 &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
6058 sizeof(Mpi2RaidVolPage0_t)))
6059 continue;
6060
6061 if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
6062 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
6063 volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
6064 _scsih_mark_responding_raid_device(ioc,
6065 le64_to_cpu(volume_pg1.WWID), handle);
Eric Moore635374e2009-03-09 01:21:12 -06006066 }
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05306067
6068 /* refresh the pd_handles */
6069 phys_disk_num = 0xFF;
6070 memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
6071 while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
6072 &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
6073 phys_disk_num))) {
6074 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6075 MPI2_IOCSTATUS_MASK;
6076 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6077 break;
6078 phys_disk_num = pd_pg0.PhysDiskNum;
6079 handle = le16_to_cpu(pd_pg0.DevHandle);
6080 set_bit(handle, ioc->pd_handles);
6081 }
Eric Moore635374e2009-03-09 01:21:12 -06006082}
6083
6084/**
6085 * _scsih_mark_responding_expander - mark a expander as responding
6086 * @ioc: per adapter object
6087 * @sas_address: sas address
6088 * @handle:
6089 *
6090 * After host reset, find out whether devices are still responding.
6091 * Used in _scsi_remove_unresponsive_expanders.
6092 *
6093 * Return nothing.
6094 */
6095static void
6096_scsih_mark_responding_expander(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
6097 u16 handle)
6098{
6099 struct _sas_node *sas_expander;
6100 unsigned long flags;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306101 int i;
Eric Moore635374e2009-03-09 01:21:12 -06006102
6103 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6104 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306105 if (sas_expander->sas_address != sas_address)
6106 continue;
6107 sas_expander->responding = 1;
6108 if (sas_expander->handle == handle)
Eric Moore635374e2009-03-09 01:21:12 -06006109 goto out;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306110 printk(KERN_INFO "\texpander(0x%016llx): handle changed"
6111 " from(0x%04x) to (0x%04x)!!!\n",
6112 (unsigned long long)sas_expander->sas_address,
6113 sas_expander->handle, handle);
6114 sas_expander->handle = handle;
6115 for (i = 0 ; i < sas_expander->num_phys ; i++)
6116 sas_expander->phy[i].handle = handle;
6117 goto out;
Eric Moore635374e2009-03-09 01:21:12 -06006118 }
6119 out:
6120 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6121}
6122
6123/**
6124 * _scsih_search_responding_expanders -
6125 * @ioc: per adapter object
6126 *
6127 * After host reset, find out whether devices are still responding.
6128 * If not remove.
6129 *
6130 * Return nothing.
6131 */
6132static void
6133_scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc)
6134{
6135 Mpi2ExpanderPage0_t expander_pg0;
6136 Mpi2ConfigReply_t mpi_reply;
6137 u16 ioc_status;
6138 __le64 sas_address;
6139 u16 handle;
6140
6141 printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__);
6142
6143 if (list_empty(&ioc->sas_expander_list))
6144 return;
6145
6146 handle = 0xFFFF;
6147 while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
6148 MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
6149
6150 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
6151 MPI2_IOCSTATUS_MASK;
6152 if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
6153 break;
6154
6155 handle = le16_to_cpu(expander_pg0.DevHandle);
6156 sas_address = le64_to_cpu(expander_pg0.SASAddress);
6157 printk(KERN_INFO "\texpander present: handle(0x%04x), "
6158 "sas_addr(0x%016llx)\n", handle,
6159 (unsigned long long)sas_address);
6160 _scsih_mark_responding_expander(ioc, sas_address, handle);
6161 }
6162
6163}
6164
6165/**
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306166 * _scsih_remove_unresponding_sas_devices - removing unresponding devices
Eric Moore635374e2009-03-09 01:21:12 -06006167 * @ioc: per adapter object
6168 *
6169 * Return nothing.
6170 */
6171static void
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306172_scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
Eric Moore635374e2009-03-09 01:21:12 -06006173{
6174 struct _sas_device *sas_device, *sas_device_next;
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306175 struct _sas_node *sas_expander;
Eric Moore635374e2009-03-09 01:21:12 -06006176 struct _raid_device *raid_device, *raid_device_next;
Eric Moore635374e2009-03-09 01:21:12 -06006177
Eric Moore635374e2009-03-09 01:21:12 -06006178
6179 list_for_each_entry_safe(sas_device, sas_device_next,
6180 &ioc->sas_device_list, list) {
6181 if (sas_device->responding) {
6182 sas_device->responding = 0;
6183 continue;
6184 }
6185 if (sas_device->starget)
6186 starget_printk(KERN_INFO, sas_device->starget,
6187 "removing: handle(0x%04x), sas_addr(0x%016llx), "
6188 "enclosure logical id(0x%016llx), slot(%d)\n",
6189 sas_device->handle,
6190 (unsigned long long)sas_device->sas_address,
6191 (unsigned long long)
6192 sas_device->enclosure_logical_id,
6193 sas_device->slot);
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306194 _scsih_remove_device(ioc, sas_device);
Eric Moore635374e2009-03-09 01:21:12 -06006195 }
6196
6197 list_for_each_entry_safe(raid_device, raid_device_next,
6198 &ioc->raid_device_list, list) {
6199 if (raid_device->responding) {
6200 raid_device->responding = 0;
6201 continue;
6202 }
6203 if (raid_device->starget) {
6204 starget_printk(KERN_INFO, raid_device->starget,
6205 "removing: handle(0x%04x), wwid(0x%016llx)\n",
6206 raid_device->handle,
6207 (unsigned long long)raid_device->wwid);
6208 scsi_remove_target(&raid_device->starget->dev);
6209 }
6210 _scsih_raid_device_remove(ioc, raid_device);
6211 }
6212
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306213 retry_expander_search:
6214 sas_expander = NULL;
6215 list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
Eric Moore635374e2009-03-09 01:21:12 -06006216 if (sas_expander->responding) {
6217 sas_expander->responding = 0;
6218 continue;
6219 }
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306220 _scsih_expander_remove(ioc, sas_expander->sas_address);
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306221 goto retry_expander_search;
6222 }
6223}
6224
6225/**
6226 * mpt2sas_scsih_reset_handler - reset callback handler (for scsih)
6227 * @ioc: per adapter object
6228 * @reset_phase: phase
6229 *
6230 * The handler for doing any required cleanup or initialization.
6231 *
6232 * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
6233 * MPT2_IOC_DONE_RESET
6234 *
6235 * Return nothing.
6236 */
6237void
6238mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
6239{
6240 switch (reset_phase) {
6241 case MPT2_IOC_PRE_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05306242 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306243 "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306244 break;
6245 case MPT2_IOC_AFTER_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05306246 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306247 "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306248 if (ioc->scsih_cmds.status & MPT2_CMD_PENDING) {
6249 ioc->scsih_cmds.status |= MPT2_CMD_RESET;
6250 mpt2sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
6251 complete(&ioc->scsih_cmds.done);
6252 }
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306253 if (ioc->tm_cmds.status & MPT2_CMD_PENDING) {
6254 ioc->tm_cmds.status |= MPT2_CMD_RESET;
6255 mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid);
6256 complete(&ioc->tm_cmds.done);
6257 }
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306258 _scsih_fw_event_cleanup_queue(ioc);
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306259 _scsih_flush_running_cmds(ioc);
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306260 _scsih_queue_rescan(ioc);
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306261 break;
6262 case MPT2_IOC_DONE_RESET:
Kashyap, Desaieabb08a2010-06-17 13:43:57 +05306263 dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306264 "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306265 _scsih_sas_host_refresh(ioc);
Kashyap, Desai14695852010-03-30 10:52:44 +05306266 _scsih_prep_device_scan(ioc);
6267 _scsih_search_responding_sas_devices(ioc);
6268 _scsih_search_responding_raid_devices(ioc);
6269 _scsih_search_responding_expanders(ioc);
Kashyap, Desaicd4e12e2009-08-20 13:20:54 +05306270 break;
Eric Moore635374e2009-03-09 01:21:12 -06006271 }
6272}
6273
6274/**
6275 * _firmware_event_work - delayed task for processing firmware events
6276 * @ioc: per adapter object
6277 * @work: equal to the fw_event_work object
6278 * Context: user.
6279 *
6280 * Return nothing.
6281 */
6282static void
6283_firmware_event_work(struct work_struct *work)
6284{
6285 struct fw_event_work *fw_event = container_of(work,
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306286 struct fw_event_work, delayed_work.work);
Eric Moore635374e2009-03-09 01:21:12 -06006287 unsigned long flags;
6288 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
6289
Eric Moore635374e2009-03-09 01:21:12 -06006290 /* the queue is being flushed so ignore this event */
Eric Moore3cb54692010-07-08 14:44:34 -06006291 if (ioc->remove_host || fw_event->cancel_pending_work ||
6292 ioc->pci_error_recovery) {
Eric Moore635374e2009-03-09 01:21:12 -06006293 _scsih_fw_event_free(ioc, fw_event);
6294 return;
6295 }
Eric Moore635374e2009-03-09 01:21:12 -06006296
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306297 if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) {
6298 _scsih_fw_event_free(ioc, fw_event);
6299 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
6300 if (ioc->shost_recovery) {
6301 init_completion(&ioc->shost_recovery_done);
6302 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
6303 flags);
6304 wait_for_completion(&ioc->shost_recovery_done);
6305 } else
6306 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock,
6307 flags);
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306308 _scsih_remove_unresponding_sas_devices(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06006309 return;
6310 }
Eric Moore635374e2009-03-09 01:21:12 -06006311
6312 switch (fw_event->event) {
6313 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306314 _scsih_sas_topology_change_event(ioc, fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006315 break;
6316 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306317 _scsih_sas_device_status_change_event(ioc,
6318 fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006319 break;
6320 case MPI2_EVENT_SAS_DISCOVERY:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306321 _scsih_sas_discovery_event(ioc,
6322 fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006323 break;
6324 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306325 _scsih_sas_broadcast_primative_event(ioc,
6326 fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006327 break;
6328 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
6329 _scsih_sas_enclosure_dev_status_change_event(ioc,
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306330 fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006331 break;
6332 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306333 _scsih_sas_ir_config_change_event(ioc, fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006334 break;
6335 case MPI2_EVENT_IR_VOLUME:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306336 _scsih_sas_ir_volume_event(ioc, fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006337 break;
6338 case MPI2_EVENT_IR_PHYSICAL_DISK:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306339 _scsih_sas_ir_physical_disk_event(ioc, fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006340 break;
6341 case MPI2_EVENT_IR_OPERATION_STATUS:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306342 _scsih_sas_ir_operation_status_event(ioc, fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006343 break;
6344 case MPI2_EVENT_TASK_SET_FULL:
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306345 _scsih_task_set_full(ioc, fw_event);
Eric Moore635374e2009-03-09 01:21:12 -06006346 break;
6347 }
6348 _scsih_fw_event_free(ioc, fw_event);
6349}
6350
6351/**
6352 * mpt2sas_scsih_event_callback - firmware event handler (called at ISR time)
6353 * @ioc: per adapter object
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306354 * @msix_index: MSIX table index supplied by the OS
Eric Moore635374e2009-03-09 01:21:12 -06006355 * @reply: reply message frame(lower 32bit addr)
6356 * Context: interrupt.
6357 *
6358 * This function merely adds a new work task into ioc->firmware_event_thread.
6359 * The tasks are worked from _firmware_event_work in user context.
6360 *
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306361 * Return 1 meaning mf should be freed from _base_interrupt
6362 * 0 means the mf is freed from this function.
Eric Moore635374e2009-03-09 01:21:12 -06006363 */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306364u8
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306365mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
6366 u32 reply)
Eric Moore635374e2009-03-09 01:21:12 -06006367{
6368 struct fw_event_work *fw_event;
6369 Mpi2EventNotificationReply_t *mpi_reply;
Eric Moore635374e2009-03-09 01:21:12 -06006370 u16 event;
Kashyap, Desaie94f6742010-03-17 16:24:52 +05306371 u16 sz;
Eric Moore635374e2009-03-09 01:21:12 -06006372
6373 /* events turned off due to host reset or driver unloading */
Eric Moore3cb54692010-07-08 14:44:34 -06006374 if (ioc->remove_host || ioc->pci_error_recovery)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306375 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06006376
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306377 mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
Eric Moore635374e2009-03-09 01:21:12 -06006378 event = le16_to_cpu(mpi_reply->Event);
6379
6380 switch (event) {
6381 /* handle these */
6382 case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
6383 {
6384 Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
6385 (Mpi2EventDataSasBroadcastPrimitive_t *)
6386 mpi_reply->EventData;
6387
6388 if (baen_data->Primitive !=
6389 MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT ||
6390 ioc->broadcast_aen_busy)
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306391 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06006392 ioc->broadcast_aen_busy = 1;
6393 break;
6394 }
6395
6396 case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
6397 _scsih_check_topo_delete_events(ioc,
6398 (Mpi2EventDataSasTopologyChangeList_t *)
6399 mpi_reply->EventData);
6400 break;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05306401 case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
6402 _scsih_check_ir_config_unhide_events(ioc,
6403 (Mpi2EventDataIrConfigChangeList_t *)
6404 mpi_reply->EventData);
6405 break;
6406 case MPI2_EVENT_IR_VOLUME:
6407 _scsih_check_volume_delete_events(ioc,
6408 (Mpi2EventDataIrVolume_t *)
6409 mpi_reply->EventData);
6410 break;
Eric Moore635374e2009-03-09 01:21:12 -06006411 case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
6412 case MPI2_EVENT_IR_OPERATION_STATUS:
6413 case MPI2_EVENT_SAS_DISCOVERY:
6414 case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
Eric Moore635374e2009-03-09 01:21:12 -06006415 case MPI2_EVENT_IR_PHYSICAL_DISK:
Eric Moore635374e2009-03-09 01:21:12 -06006416 case MPI2_EVENT_TASK_SET_FULL:
6417 break;
6418
6419 default: /* ignore the rest */
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306420 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06006421 }
6422
6423 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
6424 if (!fw_event) {
6425 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6426 ioc->name, __FILE__, __LINE__, __func__);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306427 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06006428 }
Kashyap, Desaie94f6742010-03-17 16:24:52 +05306429 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
6430 fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
Eric Moore635374e2009-03-09 01:21:12 -06006431 if (!fw_event->event_data) {
6432 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6433 ioc->name, __FILE__, __LINE__, __func__);
6434 kfree(fw_event);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306435 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06006436 }
6437
6438 memcpy(fw_event->event_data, mpi_reply->EventData,
Kashyap, Desaie94f6742010-03-17 16:24:52 +05306439 sz);
Eric Moore635374e2009-03-09 01:21:12 -06006440 fw_event->ioc = ioc;
Kashyap, Desai7b936b02009-09-25 11:44:41 +05306441 fw_event->VF_ID = mpi_reply->VF_ID;
6442 fw_event->VP_ID = mpi_reply->VP_ID;
Eric Moore635374e2009-03-09 01:21:12 -06006443 fw_event->event = event;
6444 _scsih_fw_event_add(ioc, fw_event);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306445 return 1;
Eric Moore635374e2009-03-09 01:21:12 -06006446}
6447
6448/* shost template */
6449static struct scsi_host_template scsih_driver_template = {
6450 .module = THIS_MODULE,
6451 .name = "Fusion MPT SAS Host",
6452 .proc_name = MPT2SAS_DRIVER_NAME,
Eric Moored5d135b2009-05-18 13:02:08 -06006453 .queuecommand = _scsih_qcmd,
6454 .target_alloc = _scsih_target_alloc,
6455 .slave_alloc = _scsih_slave_alloc,
6456 .slave_configure = _scsih_slave_configure,
6457 .target_destroy = _scsih_target_destroy,
6458 .slave_destroy = _scsih_slave_destroy,
6459 .change_queue_depth = _scsih_change_queue_depth,
6460 .change_queue_type = _scsih_change_queue_type,
6461 .eh_abort_handler = _scsih_abort,
6462 .eh_device_reset_handler = _scsih_dev_reset,
6463 .eh_target_reset_handler = _scsih_target_reset,
6464 .eh_host_reset_handler = _scsih_host_reset,
6465 .bios_param = _scsih_bios_param,
Eric Moore635374e2009-03-09 01:21:12 -06006466 .can_queue = 1,
6467 .this_id = -1,
6468 .sg_tablesize = MPT2SAS_SG_DEPTH,
6469 .max_sectors = 8192,
6470 .cmd_per_lun = 7,
6471 .use_clustering = ENABLE_CLUSTERING,
6472 .shost_attrs = mpt2sas_host_attrs,
6473 .sdev_attrs = mpt2sas_dev_attrs,
6474};
6475
6476/**
6477 * _scsih_expander_node_remove - removing expander device from list.
6478 * @ioc: per adapter object
6479 * @sas_expander: the sas_device object
6480 * Context: Calling function should acquire ioc->sas_node_lock.
6481 *
6482 * Removing object and freeing associated memory from the
6483 * ioc->sas_expander_list.
6484 *
6485 * Return nothing.
6486 */
6487static void
6488_scsih_expander_node_remove(struct MPT2SAS_ADAPTER *ioc,
6489 struct _sas_node *sas_expander)
6490{
6491 struct _sas_port *mpt2sas_port;
6492 struct _sas_device *sas_device;
6493 struct _sas_node *expander_sibling;
6494 unsigned long flags;
6495
6496 if (!sas_expander)
6497 return;
6498
6499 /* remove sibling ports attached to this expander */
6500 retry_device_search:
6501 list_for_each_entry(mpt2sas_port,
6502 &sas_expander->sas_port_list, port_list) {
6503 if (mpt2sas_port->remote_identify.device_type ==
6504 SAS_END_DEVICE) {
6505 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6506 sas_device =
6507 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
6508 mpt2sas_port->remote_identify.sas_address);
6509 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6510 if (!sas_device)
6511 continue;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306512 _scsih_remove_device(ioc, sas_device);
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05306513 if (ioc->shost_recovery)
6514 return;
Eric Moore635374e2009-03-09 01:21:12 -06006515 goto retry_device_search;
6516 }
6517 }
6518
6519 retry_expander_search:
6520 list_for_each_entry(mpt2sas_port,
6521 &sas_expander->sas_port_list, port_list) {
6522
6523 if (mpt2sas_port->remote_identify.device_type ==
6524 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
6525 mpt2sas_port->remote_identify.device_type ==
6526 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER) {
6527
6528 spin_lock_irqsave(&ioc->sas_node_lock, flags);
6529 expander_sibling =
6530 mpt2sas_scsih_expander_find_by_sas_address(
6531 ioc, mpt2sas_port->remote_identify.sas_address);
6532 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
6533 if (!expander_sibling)
6534 continue;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306535 _scsih_expander_remove(ioc,
6536 expander_sibling->sas_address);
Kashyap, Desai155dd4c2009-08-20 13:22:00 +05306537 if (ioc->shost_recovery)
6538 return;
Eric Moore635374e2009-03-09 01:21:12 -06006539 goto retry_expander_search;
6540 }
6541 }
6542
6543 mpt2sas_transport_port_remove(ioc, sas_expander->sas_address,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306544 sas_expander->sas_address_parent);
Eric Moore635374e2009-03-09 01:21:12 -06006545
6546 printk(MPT2SAS_INFO_FMT "expander_remove: handle"
6547 "(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
6548 sas_expander->handle, (unsigned long long)
6549 sas_expander->sas_address);
6550
6551 list_del(&sas_expander->list);
6552 kfree(sas_expander->phy);
6553 kfree(sas_expander);
6554}
6555
6556/**
Kashyap, Desai744090d2009-10-05 15:56:56 +05306557 * _scsih_ir_shutdown - IR shutdown notification
6558 * @ioc: per adapter object
6559 *
6560 * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
6561 * the host system is shutting down.
6562 *
6563 * Return nothing.
6564 */
6565static void
6566_scsih_ir_shutdown(struct MPT2SAS_ADAPTER *ioc)
6567{
6568 Mpi2RaidActionRequest_t *mpi_request;
6569 Mpi2RaidActionReply_t *mpi_reply;
6570 u16 smid;
6571
6572 /* is IR firmware build loaded ? */
6573 if (!ioc->ir_firmware)
6574 return;
6575
6576 /* are there any volumes ? */
6577 if (list_empty(&ioc->raid_device_list))
6578 return;
6579
6580 mutex_lock(&ioc->scsih_cmds.mutex);
6581
6582 if (ioc->scsih_cmds.status != MPT2_CMD_NOT_USED) {
6583 printk(MPT2SAS_ERR_FMT "%s: scsih_cmd in use\n",
6584 ioc->name, __func__);
6585 goto out;
6586 }
6587 ioc->scsih_cmds.status = MPT2_CMD_PENDING;
6588
6589 smid = mpt2sas_base_get_smid(ioc, ioc->scsih_cb_idx);
6590 if (!smid) {
6591 printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
6592 ioc->name, __func__);
6593 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
6594 goto out;
6595 }
6596
6597 mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
6598 ioc->scsih_cmds.smid = smid;
6599 memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
6600
6601 mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
6602 mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
6603
6604 printk(MPT2SAS_INFO_FMT "IR shutdown (sending)\n", ioc->name);
6605 init_completion(&ioc->scsih_cmds.done);
6606 mpt2sas_base_put_smid_default(ioc, smid);
6607 wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
6608
6609 if (!(ioc->scsih_cmds.status & MPT2_CMD_COMPLETE)) {
6610 printk(MPT2SAS_ERR_FMT "%s: timeout\n",
6611 ioc->name, __func__);
6612 goto out;
6613 }
6614
6615 if (ioc->scsih_cmds.status & MPT2_CMD_REPLY_VALID) {
6616 mpi_reply = ioc->scsih_cmds.reply;
6617
6618 printk(MPT2SAS_INFO_FMT "IR shutdown (complete): "
6619 "ioc_status(0x%04x), loginfo(0x%08x)\n",
6620 ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
6621 le32_to_cpu(mpi_reply->IOCLogInfo));
6622 }
6623
6624 out:
6625 ioc->scsih_cmds.status = MPT2_CMD_NOT_USED;
6626 mutex_unlock(&ioc->scsih_cmds.mutex);
6627}
6628
6629/**
6630 * _scsih_shutdown - routine call during system shutdown
6631 * @pdev: PCI device struct
6632 *
6633 * Return nothing.
6634 */
6635static void
6636_scsih_shutdown(struct pci_dev *pdev)
6637{
6638 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6639 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306640 struct workqueue_struct *wq;
6641 unsigned long flags;
6642
6643 ioc->remove_host = 1;
6644 _scsih_fw_event_cleanup_queue(ioc);
6645
6646 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6647 wq = ioc->firmware_event_thread;
6648 ioc->firmware_event_thread = NULL;
6649 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
6650 if (wq)
6651 destroy_workqueue(wq);
Kashyap, Desai744090d2009-10-05 15:56:56 +05306652
6653 _scsih_ir_shutdown(ioc);
6654 mpt2sas_base_detach(ioc);
6655}
6656
6657/**
Eric Moored5d135b2009-05-18 13:02:08 -06006658 * _scsih_remove - detach and remove add host
Eric Moore635374e2009-03-09 01:21:12 -06006659 * @pdev: PCI device struct
6660 *
Kashyap, Desai744090d2009-10-05 15:56:56 +05306661 * Routine called when unloading the driver.
Eric Moore635374e2009-03-09 01:21:12 -06006662 * Return nothing.
6663 */
6664static void __devexit
Eric Moored5d135b2009-05-18 13:02:08 -06006665_scsih_remove(struct pci_dev *pdev)
Eric Moore635374e2009-03-09 01:21:12 -06006666{
6667 struct Scsi_Host *shost = pci_get_drvdata(pdev);
6668 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
6669 struct _sas_port *mpt2sas_port;
6670 struct _sas_device *sas_device;
6671 struct _sas_node *expander_sibling;
Kashyap, Desaid7384b22009-12-16 18:50:06 +05306672 struct _raid_device *raid_device, *next;
6673 struct MPT2SAS_TARGET *sas_target_priv_data;
Eric Moore635374e2009-03-09 01:21:12 -06006674 struct workqueue_struct *wq;
6675 unsigned long flags;
6676
6677 ioc->remove_host = 1;
Kashyap, Desaif1c35e62010-03-09 16:31:43 +05306678 _scsih_fw_event_cleanup_queue(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06006679
6680 spin_lock_irqsave(&ioc->fw_event_lock, flags);
6681 wq = ioc->firmware_event_thread;
6682 ioc->firmware_event_thread = NULL;
6683 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
6684 if (wq)
6685 destroy_workqueue(wq);
6686
Kashyap, Desaid7384b22009-12-16 18:50:06 +05306687 /* release all the volumes */
6688 list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
6689 list) {
6690 if (raid_device->starget) {
6691 sas_target_priv_data =
6692 raid_device->starget->hostdata;
6693 sas_target_priv_data->deleted = 1;
6694 scsi_remove_target(&raid_device->starget->dev);
6695 }
6696 printk(MPT2SAS_INFO_FMT "removing handle(0x%04x), wwid"
6697 "(0x%016llx)\n", ioc->name, raid_device->handle,
6698 (unsigned long long) raid_device->wwid);
6699 _scsih_raid_device_remove(ioc, raid_device);
6700 }
6701
Eric Moore635374e2009-03-09 01:21:12 -06006702 /* free ports attached to the sas_host */
6703 retry_again:
6704 list_for_each_entry(mpt2sas_port,
6705 &ioc->sas_hba.sas_port_list, port_list) {
6706 if (mpt2sas_port->remote_identify.device_type ==
6707 SAS_END_DEVICE) {
6708 sas_device =
6709 mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
6710 mpt2sas_port->remote_identify.sas_address);
6711 if (sas_device) {
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306712 _scsih_remove_device(ioc, sas_device);
Eric Moore635374e2009-03-09 01:21:12 -06006713 goto retry_again;
6714 }
6715 } else {
6716 expander_sibling =
6717 mpt2sas_scsih_expander_find_by_sas_address(ioc,
6718 mpt2sas_port->remote_identify.sas_address);
6719 if (expander_sibling) {
6720 _scsih_expander_remove(ioc,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306721 expander_sibling->sas_address);
Eric Moore635374e2009-03-09 01:21:12 -06006722 goto retry_again;
6723 }
6724 }
6725 }
6726
6727 /* free phys attached to the sas_host */
6728 if (ioc->sas_hba.num_phys) {
6729 kfree(ioc->sas_hba.phy);
6730 ioc->sas_hba.phy = NULL;
6731 ioc->sas_hba.num_phys = 0;
6732 }
6733
6734 sas_remove_host(shost);
Kashyap, Desai744090d2009-10-05 15:56:56 +05306735 _scsih_shutdown(pdev);
Eric Moore635374e2009-03-09 01:21:12 -06006736 list_del(&ioc->list);
6737 scsi_remove_host(shost);
6738 scsi_host_put(shost);
6739}
6740
6741/**
6742 * _scsih_probe_boot_devices - reports 1st device
6743 * @ioc: per adapter object
6744 *
6745 * If specified in bios page 2, this routine reports the 1st
6746 * device scsi-ml or sas transport for persistent boot device
6747 * purposes. Please refer to function _scsih_determine_boot_device()
6748 */
6749static void
6750_scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc)
6751{
6752 u8 is_raid;
6753 void *device;
6754 struct _sas_device *sas_device;
6755 struct _raid_device *raid_device;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306756 u16 handle;
6757 u64 sas_address_parent;
Eric Moore635374e2009-03-09 01:21:12 -06006758 u64 sas_address;
6759 unsigned long flags;
6760 int rc;
6761
6762 device = NULL;
6763 if (ioc->req_boot_device.device) {
6764 device = ioc->req_boot_device.device;
6765 is_raid = ioc->req_boot_device.is_raid;
6766 } else if (ioc->req_alt_boot_device.device) {
6767 device = ioc->req_alt_boot_device.device;
6768 is_raid = ioc->req_alt_boot_device.is_raid;
6769 } else if (ioc->current_boot_device.device) {
6770 device = ioc->current_boot_device.device;
6771 is_raid = ioc->current_boot_device.is_raid;
6772 }
6773
6774 if (!device)
6775 return;
6776
6777 if (is_raid) {
6778 raid_device = device;
6779 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6780 raid_device->id, 0);
6781 if (rc)
6782 _scsih_raid_device_remove(ioc, raid_device);
6783 } else {
6784 sas_device = device;
6785 handle = sas_device->handle;
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306786 sas_address_parent = sas_device->sas_address_parent;
Eric Moore635374e2009-03-09 01:21:12 -06006787 sas_address = sas_device->sas_address;
6788 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6789 list_move_tail(&sas_device->list, &ioc->sas_device_list);
6790 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6791 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306792 sas_device->sas_address_parent)) {
Eric Moore635374e2009-03-09 01:21:12 -06006793 _scsih_sas_device_remove(ioc, sas_device);
6794 } else if (!sas_device->starget) {
6795 mpt2sas_transport_port_remove(ioc, sas_address,
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306796 sas_address_parent);
Eric Moore635374e2009-03-09 01:21:12 -06006797 _scsih_sas_device_remove(ioc, sas_device);
6798 }
6799 }
6800}
6801
6802/**
6803 * _scsih_probe_raid - reporting raid volumes to scsi-ml
6804 * @ioc: per adapter object
6805 *
6806 * Called during initial loading of the driver.
6807 */
6808static void
6809_scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
6810{
6811 struct _raid_device *raid_device, *raid_next;
6812 int rc;
6813
6814 list_for_each_entry_safe(raid_device, raid_next,
6815 &ioc->raid_device_list, list) {
6816 if (raid_device->starget)
6817 continue;
6818 rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
6819 raid_device->id, 0);
6820 if (rc)
6821 _scsih_raid_device_remove(ioc, raid_device);
6822 }
6823}
6824
6825/**
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306826 * _scsih_probe_sas - reporting sas devices to sas transport
Eric Moore635374e2009-03-09 01:21:12 -06006827 * @ioc: per adapter object
6828 *
6829 * Called during initial loading of the driver.
6830 */
6831static void
6832_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
6833{
6834 struct _sas_device *sas_device, *next;
6835 unsigned long flags;
Eric Moore635374e2009-03-09 01:21:12 -06006836
6837 /* SAS Device List */
6838 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
6839 list) {
6840 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6841 list_move_tail(&sas_device->list, &ioc->sas_device_list);
6842 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
6843
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306844 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
6845 sas_device->sas_address_parent)) {
Eric Moore635374e2009-03-09 01:21:12 -06006846 _scsih_sas_device_remove(ioc, sas_device);
6847 } else if (!sas_device->starget) {
Kashyap, Desaic5e039b2009-09-23 17:21:29 +05306848 mpt2sas_transport_port_remove(ioc,
6849 sas_device->sas_address,
6850 sas_device->sas_address_parent);
Eric Moore635374e2009-03-09 01:21:12 -06006851 _scsih_sas_device_remove(ioc, sas_device);
6852 }
6853 }
6854}
6855
6856/**
6857 * _scsih_probe_devices - probing for devices
6858 * @ioc: per adapter object
6859 *
6860 * Called during initial loading of the driver.
6861 */
6862static void
6863_scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc)
6864{
6865 u16 volume_mapping_flags =
6866 le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
6867 MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
6868
6869 if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
6870 return; /* return when IOC doesn't support initiator mode */
6871
6872 _scsih_probe_boot_devices(ioc);
6873
6874 if (ioc->ir_firmware) {
6875 if ((volume_mapping_flags &
6876 MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) {
6877 _scsih_probe_sas(ioc);
6878 _scsih_probe_raid(ioc);
6879 } else {
6880 _scsih_probe_raid(ioc);
6881 _scsih_probe_sas(ioc);
6882 }
6883 } else
6884 _scsih_probe_sas(ioc);
6885}
6886
6887/**
Eric Moored5d135b2009-05-18 13:02:08 -06006888 * _scsih_probe - attach and add scsi host
Eric Moore635374e2009-03-09 01:21:12 -06006889 * @pdev: PCI device struct
6890 * @id: pci device id
6891 *
6892 * Returns 0 success, anything else error.
6893 */
6894static int
Eric Moored5d135b2009-05-18 13:02:08 -06006895_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
Eric Moore635374e2009-03-09 01:21:12 -06006896{
6897 struct MPT2SAS_ADAPTER *ioc;
6898 struct Scsi_Host *shost;
6899
6900 shost = scsi_host_alloc(&scsih_driver_template,
6901 sizeof(struct MPT2SAS_ADAPTER));
6902 if (!shost)
6903 return -ENODEV;
6904
6905 /* init local params */
6906 ioc = shost_priv(shost);
6907 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
6908 INIT_LIST_HEAD(&ioc->list);
Eric Mooreba33fad2009-03-15 21:37:18 -06006909 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
Eric Moore635374e2009-03-09 01:21:12 -06006910 ioc->shost = shost;
6911 ioc->id = mpt_ids++;
6912 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
6913 ioc->pdev = pdev;
6914 ioc->scsi_io_cb_idx = scsi_io_cb_idx;
6915 ioc->tm_cb_idx = tm_cb_idx;
6916 ioc->ctl_cb_idx = ctl_cb_idx;
6917 ioc->base_cb_idx = base_cb_idx;
6918 ioc->transport_cb_idx = transport_cb_idx;
Kashyap, Desai744090d2009-10-05 15:56:56 +05306919 ioc->scsih_cb_idx = scsih_cb_idx;
Eric Moore635374e2009-03-09 01:21:12 -06006920 ioc->config_cb_idx = config_cb_idx;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306921 ioc->tm_tr_cb_idx = tm_tr_cb_idx;
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05306922 ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306923 ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
Eric Moore635374e2009-03-09 01:21:12 -06006924 ioc->logging_level = logging_level;
6925 /* misc semaphores and spin locks */
Kashyap, Desaid2742132010-06-17 13:28:55 +05306926 mutex_init(&ioc->reset_in_progress_mutex);
Eric Moore635374e2009-03-09 01:21:12 -06006927 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
6928 spin_lock_init(&ioc->scsi_lookup_lock);
6929 spin_lock_init(&ioc->sas_device_lock);
6930 spin_lock_init(&ioc->sas_node_lock);
6931 spin_lock_init(&ioc->fw_event_lock);
6932 spin_lock_init(&ioc->raid_device_lock);
6933
6934 INIT_LIST_HEAD(&ioc->sas_device_list);
6935 INIT_LIST_HEAD(&ioc->sas_device_init_list);
6936 INIT_LIST_HEAD(&ioc->sas_expander_list);
6937 INIT_LIST_HEAD(&ioc->fw_event_list);
6938 INIT_LIST_HEAD(&ioc->raid_device_list);
6939 INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306940 INIT_LIST_HEAD(&ioc->delayed_tr_list);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05306941 INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
Eric Moore635374e2009-03-09 01:21:12 -06006942
6943 /* init shost parameters */
Eric Moored334aa72010-04-22 10:47:40 -06006944 shost->max_cmd_len = 32;
Eric Moore635374e2009-03-09 01:21:12 -06006945 shost->max_lun = max_lun;
6946 shost->transportt = mpt2sas_transport_template;
6947 shost->unique_id = ioc->id;
6948
6949 if ((scsi_add_host(shost, &pdev->dev))) {
6950 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6951 ioc->name, __FILE__, __LINE__, __func__);
6952 list_del(&ioc->list);
6953 goto out_add_shost_fail;
6954 }
6955
Eric Moore3c621b32009-05-18 12:59:41 -06006956 scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
Eric Moored334aa72010-04-22 10:47:40 -06006957 | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05306958 scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
Eric Moore3c621b32009-05-18 12:59:41 -06006959
Eric Moore635374e2009-03-09 01:21:12 -06006960 /* event thread */
6961 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
6962 "fw_event%d", ioc->id);
6963 ioc->firmware_event_thread = create_singlethread_workqueue(
6964 ioc->firmware_event_name);
6965 if (!ioc->firmware_event_thread) {
6966 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6967 ioc->name, __FILE__, __LINE__, __func__);
6968 goto out_thread_fail;
6969 }
6970
6971 ioc->wait_for_port_enable_to_complete = 1;
6972 if ((mpt2sas_base_attach(ioc))) {
6973 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
6974 ioc->name, __FILE__, __LINE__, __func__);
6975 goto out_attach_fail;
6976 }
6977
6978 ioc->wait_for_port_enable_to_complete = 0;
6979 _scsih_probe_devices(ioc);
6980 return 0;
6981
6982 out_attach_fail:
6983 destroy_workqueue(ioc->firmware_event_thread);
6984 out_thread_fail:
6985 list_del(&ioc->list);
6986 scsi_remove_host(shost);
6987 out_add_shost_fail:
6988 return -ENODEV;
6989}
6990
6991#ifdef CONFIG_PM
6992/**
Eric Moored5d135b2009-05-18 13:02:08 -06006993 * _scsih_suspend - power management suspend main entry point
Eric Moore635374e2009-03-09 01:21:12 -06006994 * @pdev: PCI device struct
6995 * @state: PM state change to (usually PCI_D3)
6996 *
6997 * Returns 0 success, anything else error.
6998 */
6999static int
Eric Moored5d135b2009-05-18 13:02:08 -06007000_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
Eric Moore635374e2009-03-09 01:21:12 -06007001{
7002 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7003 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7004 u32 device_state;
7005
Kashyap, Desaie4750c92009-08-07 19:37:59 +05307006 mpt2sas_base_stop_watchdog(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06007007 flush_scheduled_work();
7008 scsi_block_requests(shost);
7009 device_state = pci_choose_state(pdev, state);
7010 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, entering "
7011 "operating state [D%d]\n", ioc->name, pdev,
7012 pci_name(pdev), device_state);
7013
7014 mpt2sas_base_free_resources(ioc);
7015 pci_save_state(pdev);
7016 pci_disable_device(pdev);
7017 pci_set_power_state(pdev, device_state);
7018 return 0;
7019}
7020
7021/**
Eric Moored5d135b2009-05-18 13:02:08 -06007022 * _scsih_resume - power management resume main entry point
Eric Moore635374e2009-03-09 01:21:12 -06007023 * @pdev: PCI device struct
7024 *
7025 * Returns 0 success, anything else error.
7026 */
7027static int
Eric Moored5d135b2009-05-18 13:02:08 -06007028_scsih_resume(struct pci_dev *pdev)
Eric Moore635374e2009-03-09 01:21:12 -06007029{
7030 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7031 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7032 u32 device_state = pdev->current_state;
7033 int r;
7034
7035 printk(MPT2SAS_INFO_FMT "pdev=0x%p, slot=%s, previous "
7036 "operating state [D%d]\n", ioc->name, pdev,
7037 pci_name(pdev), device_state);
7038
7039 pci_set_power_state(pdev, PCI_D0);
7040 pci_enable_wake(pdev, PCI_D0, 0);
7041 pci_restore_state(pdev);
7042 ioc->pdev = pdev;
7043 r = mpt2sas_base_map_resources(ioc);
7044 if (r)
7045 return r;
7046
7047 mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
7048 scsi_unblock_requests(shost);
Kashyap, Desaie4750c92009-08-07 19:37:59 +05307049 mpt2sas_base_start_watchdog(ioc);
Eric Moore635374e2009-03-09 01:21:12 -06007050 return 0;
7051}
7052#endif /* CONFIG_PM */
7053
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05307054/**
7055 * _scsih_pci_error_detected - Called when a PCI error is detected.
7056 * @pdev: PCI device struct
7057 * @state: PCI channel state
7058 *
7059 * Description: Called when a PCI error is detected.
7060 *
7061 * Return value:
7062 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7063 */
7064static pci_ers_result_t
7065_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7066{
7067 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7068 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7069
7070 printk(MPT2SAS_INFO_FMT "PCI error: detected callback, state(%d)!!\n",
7071 ioc->name, state);
7072
7073 switch (state) {
7074 case pci_channel_io_normal:
7075 return PCI_ERS_RESULT_CAN_RECOVER;
7076 case pci_channel_io_frozen:
Eric Moore3cb54692010-07-08 14:44:34 -06007077 /* Fatal error, prepare for slot reset */
7078 ioc->pci_error_recovery = 1;
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05307079 scsi_block_requests(ioc->shost);
7080 mpt2sas_base_stop_watchdog(ioc);
7081 mpt2sas_base_free_resources(ioc);
7082 return PCI_ERS_RESULT_NEED_RESET;
7083 case pci_channel_io_perm_failure:
Eric Moore3cb54692010-07-08 14:44:34 -06007084 /* Permanent error, prepare for device removal */
7085 ioc->pci_error_recovery = 1;
7086 mpt2sas_base_stop_watchdog(ioc);
7087 _scsih_flush_running_cmds(ioc);
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05307088 return PCI_ERS_RESULT_DISCONNECT;
7089 }
7090 return PCI_ERS_RESULT_NEED_RESET;
7091}
7092
7093/**
7094 * _scsih_pci_slot_reset - Called when PCI slot has been reset.
7095 * @pdev: PCI device struct
7096 *
7097 * Description: This routine is called by the pci error recovery
7098 * code after the PCI slot has been reset, just before we
7099 * should resume normal operations.
7100 */
7101static pci_ers_result_t
7102_scsih_pci_slot_reset(struct pci_dev *pdev)
7103{
7104 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7105 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7106 int rc;
7107
7108 printk(MPT2SAS_INFO_FMT "PCI error: slot reset callback!!\n",
7109 ioc->name);
7110
Eric Moore3cb54692010-07-08 14:44:34 -06007111 ioc->pci_error_recovery = 0;
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05307112 ioc->pdev = pdev;
Eric Moore3cb54692010-07-08 14:44:34 -06007113 pci_restore_state(pdev);
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05307114 rc = mpt2sas_base_map_resources(ioc);
7115 if (rc)
7116 return PCI_ERS_RESULT_DISCONNECT;
7117
7118
7119 rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
7120 FORCE_BIG_HAMMER);
7121
7122 printk(MPT2SAS_WARN_FMT "hard reset: %s\n", ioc->name,
7123 (rc == 0) ? "success" : "failed");
7124
7125 if (!rc)
7126 return PCI_ERS_RESULT_RECOVERED;
7127 else
7128 return PCI_ERS_RESULT_DISCONNECT;
7129}
7130
7131/**
7132 * _scsih_pci_resume() - resume normal ops after PCI reset
7133 * @pdev: pointer to PCI device
7134 *
7135 * Called when the error recovery driver tells us that its
7136 * OK to resume normal operation. Use completion to allow
7137 * halted scsi ops to resume.
7138 */
7139static void
7140_scsih_pci_resume(struct pci_dev *pdev)
7141{
7142 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7143 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7144
7145 printk(MPT2SAS_INFO_FMT "PCI error: resume callback!!\n", ioc->name);
7146
7147 pci_cleanup_aer_uncorrect_error_status(pdev);
7148 mpt2sas_base_start_watchdog(ioc);
7149 scsi_unblock_requests(ioc->shost);
7150}
7151
7152/**
7153 * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
7154 * @pdev: pointer to PCI device
7155 */
7156static pci_ers_result_t
7157_scsih_pci_mmio_enabled(struct pci_dev *pdev)
7158{
7159 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7160 struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
7161
7162 printk(MPT2SAS_INFO_FMT "PCI error: mmio enabled callback!!\n",
7163 ioc->name);
7164
7165 /* TODO - dump whatever for debugging purposes */
7166
7167 /* Request a slot reset. */
7168 return PCI_ERS_RESULT_NEED_RESET;
7169}
7170
7171static struct pci_error_handlers _scsih_err_handler = {
7172 .error_detected = _scsih_pci_error_detected,
7173 .mmio_enabled = _scsih_pci_mmio_enabled,
7174 .slot_reset = _scsih_pci_slot_reset,
7175 .resume = _scsih_pci_resume,
7176};
Eric Moore635374e2009-03-09 01:21:12 -06007177
7178static struct pci_driver scsih_driver = {
7179 .name = MPT2SAS_DRIVER_NAME,
7180 .id_table = scsih_pci_table,
Eric Moored5d135b2009-05-18 13:02:08 -06007181 .probe = _scsih_probe,
7182 .remove = __devexit_p(_scsih_remove),
Kashyap, Desai744090d2009-10-05 15:56:56 +05307183 .shutdown = _scsih_shutdown,
Kashyap, Desaief7c80c2010-04-05 14:20:07 +05307184 .err_handler = &_scsih_err_handler,
Eric Moore635374e2009-03-09 01:21:12 -06007185#ifdef CONFIG_PM
Eric Moored5d135b2009-05-18 13:02:08 -06007186 .suspend = _scsih_suspend,
7187 .resume = _scsih_resume,
Eric Moore635374e2009-03-09 01:21:12 -06007188#endif
7189};
7190
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05307191/* raid transport support */
7192static struct raid_function_template mpt2sas_raid_functions = {
7193 .cookie = &scsih_driver_template,
7194 .is_raid = _scsih_is_raid,
7195 .get_resync = _scsih_get_resync,
7196 .get_state = _scsih_get_state,
7197};
Eric Moore635374e2009-03-09 01:21:12 -06007198
7199/**
Eric Moored5d135b2009-05-18 13:02:08 -06007200 * _scsih_init - main entry point for this driver.
Eric Moore635374e2009-03-09 01:21:12 -06007201 *
7202 * Returns 0 success, anything else error.
7203 */
7204static int __init
Eric Moored5d135b2009-05-18 13:02:08 -06007205_scsih_init(void)
Eric Moore635374e2009-03-09 01:21:12 -06007206{
7207 int error;
7208
7209 mpt_ids = 0;
7210 printk(KERN_INFO "%s version %s loaded\n", MPT2SAS_DRIVER_NAME,
7211 MPT2SAS_DRIVER_VERSION);
7212
7213 mpt2sas_transport_template =
7214 sas_attach_transport(&mpt2sas_transport_functions);
7215 if (!mpt2sas_transport_template)
7216 return -ENODEV;
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05307217 /* raid transport support */
7218 mpt2sas_raid_template = raid_class_attach(&mpt2sas_raid_functions);
7219 if (!mpt2sas_raid_template) {
7220 sas_release_transport(mpt2sas_transport_template);
7221 return -ENODEV;
7222 }
Eric Moore635374e2009-03-09 01:21:12 -06007223
7224 mpt2sas_base_initialize_callback_handler();
7225
7226 /* queuecommand callback hander */
Eric Moored5d135b2009-05-18 13:02:08 -06007227 scsi_io_cb_idx = mpt2sas_base_register_callback_handler(_scsih_io_done);
Eric Moore635374e2009-03-09 01:21:12 -06007228
Uwe Kleine-König65155b32010-06-11 12:17:01 +02007229 /* task management callback handler */
Eric Moored5d135b2009-05-18 13:02:08 -06007230 tm_cb_idx = mpt2sas_base_register_callback_handler(_scsih_tm_done);
Eric Moore635374e2009-03-09 01:21:12 -06007231
7232 /* base internal commands callback handler */
7233 base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done);
7234
7235 /* transport internal commands callback handler */
7236 transport_cb_idx = mpt2sas_base_register_callback_handler(
7237 mpt2sas_transport_done);
7238
Kashyap, Desai744090d2009-10-05 15:56:56 +05307239 /* scsih internal commands callback handler */
7240 scsih_cb_idx = mpt2sas_base_register_callback_handler(_scsih_done);
7241
Eric Moore635374e2009-03-09 01:21:12 -06007242 /* configuration page API internal commands callback handler */
7243 config_cb_idx = mpt2sas_base_register_callback_handler(
7244 mpt2sas_config_done);
7245
7246 /* ctl module callback handler */
7247 ctl_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_ctl_done);
7248
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05307249 tm_tr_cb_idx = mpt2sas_base_register_callback_handler(
7250 _scsih_tm_tr_complete);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05307251
7252 tm_tr_volume_cb_idx = mpt2sas_base_register_callback_handler(
7253 _scsih_tm_volume_tr_complete);
7254
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05307255 tm_sas_control_cb_idx = mpt2sas_base_register_callback_handler(
7256 _scsih_sas_control_complete);
7257
Eric Moore635374e2009-03-09 01:21:12 -06007258 mpt2sas_ctl_init();
7259
7260 error = pci_register_driver(&scsih_driver);
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05307261 if (error) {
7262 /* raid transport support */
7263 raid_class_release(mpt2sas_raid_template);
Eric Moore635374e2009-03-09 01:21:12 -06007264 sas_release_transport(mpt2sas_transport_template);
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05307265 }
Eric Moore635374e2009-03-09 01:21:12 -06007266
7267 return error;
7268}
7269
7270/**
Eric Moored5d135b2009-05-18 13:02:08 -06007271 * _scsih_exit - exit point for this driver (when it is a module).
Eric Moore635374e2009-03-09 01:21:12 -06007272 *
7273 * Returns 0 success, anything else error.
7274 */
7275static void __exit
Eric Moored5d135b2009-05-18 13:02:08 -06007276_scsih_exit(void)
Eric Moore635374e2009-03-09 01:21:12 -06007277{
7278 printk(KERN_INFO "mpt2sas version %s unloading\n",
7279 MPT2SAS_DRIVER_VERSION);
7280
7281 pci_unregister_driver(&scsih_driver);
7282
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05307283 mpt2sas_ctl_exit();
7284
Eric Moore635374e2009-03-09 01:21:12 -06007285 mpt2sas_base_release_callback_handler(scsi_io_cb_idx);
7286 mpt2sas_base_release_callback_handler(tm_cb_idx);
7287 mpt2sas_base_release_callback_handler(base_cb_idx);
7288 mpt2sas_base_release_callback_handler(transport_cb_idx);
Kashyap, Desai744090d2009-10-05 15:56:56 +05307289 mpt2sas_base_release_callback_handler(scsih_cb_idx);
Eric Moore635374e2009-03-09 01:21:12 -06007290 mpt2sas_base_release_callback_handler(config_cb_idx);
7291 mpt2sas_base_release_callback_handler(ctl_cb_idx);
7292
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05307293 mpt2sas_base_release_callback_handler(tm_tr_cb_idx);
Kashyap, Desaif3eedd62010-06-17 13:46:13 +05307294 mpt2sas_base_release_callback_handler(tm_tr_volume_cb_idx);
Kashyap, Desai77e63ed2009-09-14 11:04:23 +05307295 mpt2sas_base_release_callback_handler(tm_sas_control_cb_idx);
7296
Kashyap, Desaif7c95ef2009-12-16 18:54:42 +05307297 /* raid transport support */
7298 raid_class_release(mpt2sas_raid_template);
7299 sas_release_transport(mpt2sas_transport_template);
7300
Eric Moore635374e2009-03-09 01:21:12 -06007301}
7302
Eric Moored5d135b2009-05-18 13:02:08 -06007303module_init(_scsih_init);
7304module_exit(_scsih_exit);