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Merge branch 'linus' into core/softirq
[deliverable/linux.git] / drivers / message / fusion / mptsas.c
1 /*
2 * linux/drivers/message/fusion/mptsas.c
3 * For use with LSI PCI chip/adapter(s)
4 * running LSI Fusion MPT (Message Passing Technology) firmware.
5 *
6 * Copyright (c) 1999-2007 LSI Corporation
7 * (mailto:DL-MPTFusionLinux@lsi.com)
8 */
9 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
10 /*
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; version 2 of the License.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 NO WARRANTY
21 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 solely responsible for determining the appropriateness of using and
26 distributing the Program and assumes all risks associated with its
27 exercise of rights under this Agreement, including but not limited to
28 the risks and costs of program errors, damage to or loss of data,
29 programs or equipment, and unavailability or interruption of operations.
30
31 DISCLAIMER OF LIABILITY
32 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
39
40 You should have received a copy of the GNU General Public License
41 along with this program; if not, write to the Free Software
42 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
43 */
44 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
45
46 #include <linux/module.h>
47 #include <linux/kernel.h>
48 #include <linux/init.h>
49 #include <linux/errno.h>
50 #include <linux/jiffies.h>
51 #include <linux/workqueue.h>
52 #include <linux/delay.h> /* for mdelay */
53
54 #include <scsi/scsi.h>
55 #include <scsi/scsi_cmnd.h>
56 #include <scsi/scsi_device.h>
57 #include <scsi/scsi_host.h>
58 #include <scsi/scsi_transport_sas.h>
59 #include <scsi/scsi_dbg.h>
60
61 #include "mptbase.h"
62 #include "mptscsih.h"
63 #include "mptsas.h"
64
65
66 #define my_NAME "Fusion MPT SAS Host driver"
67 #define my_VERSION MPT_LINUX_VERSION_COMMON
68 #define MYNAM "mptsas"
69
70 /*
71 * Reserved channel for integrated raid
72 */
73 #define MPTSAS_RAID_CHANNEL 1
74
75 MODULE_AUTHOR(MODULEAUTHOR);
76 MODULE_DESCRIPTION(my_NAME);
77 MODULE_LICENSE("GPL");
78 MODULE_VERSION(my_VERSION);
79
80 static int mpt_pt_clear;
81 module_param(mpt_pt_clear, int, 0);
82 MODULE_PARM_DESC(mpt_pt_clear,
83 " Clear persistency table: enable=1 "
84 "(default=MPTSCSIH_PT_CLEAR=0)");
85
86 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */
87 #define MPTSAS_MAX_LUN (16895)
88 static int max_lun = MPTSAS_MAX_LUN;
89 module_param(max_lun, int, 0);
90 MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
91
92 static u8 mptsasDoneCtx = MPT_MAX_PROTOCOL_DRIVERS;
93 static u8 mptsasTaskCtx = MPT_MAX_PROTOCOL_DRIVERS;
94 static u8 mptsasInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; /* Used only for internal commands */
95 static u8 mptsasMgmtCtx = MPT_MAX_PROTOCOL_DRIVERS;
96
97 static void mptsas_hotplug_work(struct work_struct *work);
98
99 static void mptsas_print_phy_data(MPT_ADAPTER *ioc,
100 MPI_SAS_IO_UNIT0_PHY_DATA *phy_data)
101 {
102 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
103 "---- IO UNIT PAGE 0 ------------\n", ioc->name));
104 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Handle=0x%X\n",
105 ioc->name, le16_to_cpu(phy_data->AttachedDeviceHandle)));
106 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Controller Handle=0x%X\n",
107 ioc->name, le16_to_cpu(phy_data->ControllerDevHandle)));
108 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Port=0x%X\n",
109 ioc->name, phy_data->Port));
110 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Port Flags=0x%X\n",
111 ioc->name, phy_data->PortFlags));
112 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Flags=0x%X\n",
113 ioc->name, phy_data->PhyFlags));
114 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Negotiated Link Rate=0x%X\n",
115 ioc->name, phy_data->NegotiatedLinkRate));
116 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
117 "Controller PHY Device Info=0x%X\n", ioc->name,
118 le32_to_cpu(phy_data->ControllerPhyDeviceInfo)));
119 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "DiscoveryStatus=0x%X\n\n",
120 ioc->name, le32_to_cpu(phy_data->DiscoveryStatus)));
121 }
122
123 static void mptsas_print_phy_pg0(MPT_ADAPTER *ioc, SasPhyPage0_t *pg0)
124 {
125 __le64 sas_address;
126
127 memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
128
129 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
130 "---- SAS PHY PAGE 0 ------------\n", ioc->name));
131 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
132 "Attached Device Handle=0x%X\n", ioc->name,
133 le16_to_cpu(pg0->AttachedDevHandle)));
134 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SAS Address=0x%llX\n",
135 ioc->name, (unsigned long long)le64_to_cpu(sas_address)));
136 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
137 "Attached PHY Identifier=0x%X\n", ioc->name,
138 pg0->AttachedPhyIdentifier));
139 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Attached Device Info=0x%X\n",
140 ioc->name, le32_to_cpu(pg0->AttachedDeviceInfo)));
141 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Programmed Link Rate=0x%X\n",
142 ioc->name, pg0->ProgrammedLinkRate));
143 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Change Count=0x%X\n",
144 ioc->name, pg0->ChangeCount));
145 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Info=0x%X\n\n",
146 ioc->name, le32_to_cpu(pg0->PhyInfo)));
147 }
148
149 static void mptsas_print_phy_pg1(MPT_ADAPTER *ioc, SasPhyPage1_t *pg1)
150 {
151 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
152 "---- SAS PHY PAGE 1 ------------\n", ioc->name));
153 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Invalid Dword Count=0x%x\n",
154 ioc->name, pg1->InvalidDwordCount));
155 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
156 "Running Disparity Error Count=0x%x\n", ioc->name,
157 pg1->RunningDisparityErrorCount));
158 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
159 "Loss Dword Synch Count=0x%x\n", ioc->name,
160 pg1->LossDwordSynchCount));
161 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
162 "PHY Reset Problem Count=0x%x\n\n", ioc->name,
163 pg1->PhyResetProblemCount));
164 }
165
166 static void mptsas_print_device_pg0(MPT_ADAPTER *ioc, SasDevicePage0_t *pg0)
167 {
168 __le64 sas_address;
169
170 memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
171
172 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
173 "---- SAS DEVICE PAGE 0 ---------\n", ioc->name));
174 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Handle=0x%X\n",
175 ioc->name, le16_to_cpu(pg0->DevHandle)));
176 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Parent Handle=0x%X\n",
177 ioc->name, le16_to_cpu(pg0->ParentDevHandle)));
178 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Enclosure Handle=0x%X\n",
179 ioc->name, le16_to_cpu(pg0->EnclosureHandle)));
180 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Slot=0x%X\n",
181 ioc->name, le16_to_cpu(pg0->Slot)));
182 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "SAS Address=0x%llX\n",
183 ioc->name, (unsigned long long)le64_to_cpu(sas_address)));
184 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Target ID=0x%X\n",
185 ioc->name, pg0->TargetID));
186 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Bus=0x%X\n",
187 ioc->name, pg0->Bus));
188 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Parent Phy Num=0x%X\n",
189 ioc->name, pg0->PhyNum));
190 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Access Status=0x%X\n",
191 ioc->name, le16_to_cpu(pg0->AccessStatus)));
192 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Device Info=0x%X\n",
193 ioc->name, le32_to_cpu(pg0->DeviceInfo)));
194 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Flags=0x%X\n",
195 ioc->name, le16_to_cpu(pg0->Flags)));
196 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Physical Port=0x%X\n\n",
197 ioc->name, pg0->PhysicalPort));
198 }
199
200 static void mptsas_print_expander_pg1(MPT_ADAPTER *ioc, SasExpanderPage1_t *pg1)
201 {
202 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
203 "---- SAS EXPANDER PAGE 1 ------------\n", ioc->name));
204 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Physical Port=0x%X\n",
205 ioc->name, pg1->PhysicalPort));
206 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "PHY Identifier=0x%X\n",
207 ioc->name, pg1->PhyIdentifier));
208 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Negotiated Link Rate=0x%X\n",
209 ioc->name, pg1->NegotiatedLinkRate));
210 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Programmed Link Rate=0x%X\n",
211 ioc->name, pg1->ProgrammedLinkRate));
212 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Hardware Link Rate=0x%X\n",
213 ioc->name, pg1->HwLinkRate));
214 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Owner Device Handle=0x%X\n",
215 ioc->name, le16_to_cpu(pg1->OwnerDevHandle)));
216 dsasprintk(ioc, printk(MYIOC_s_DEBUG_FMT
217 "Attached Device Handle=0x%X\n\n", ioc->name,
218 le16_to_cpu(pg1->AttachedDevHandle)));
219 }
220
221 static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy)
222 {
223 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
224 return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
225 }
226
227 static inline MPT_ADAPTER *rphy_to_ioc(struct sas_rphy *rphy)
228 {
229 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
230 return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
231 }
232
233 static struct mptsas_portinfo *
234 mptsas_get_hba_portinfo(MPT_ADAPTER *ioc)
235 {
236 struct list_head *head = &ioc->sas_topology;
237 struct mptsas_portinfo *pi = NULL;
238
239 /* always the first entry on sas_topology list */
240
241 if (!list_empty(head))
242 pi = list_entry(head->next, struct mptsas_portinfo, list);
243
244 return pi;
245 }
246
247 /*
248 * mptsas_find_portinfo_by_handle
249 *
250 * This function should be called with the sas_topology_mutex already held
251 */
252 static struct mptsas_portinfo *
253 mptsas_find_portinfo_by_handle(MPT_ADAPTER *ioc, u16 handle)
254 {
255 struct mptsas_portinfo *port_info, *rc=NULL;
256 int i;
257
258 list_for_each_entry(port_info, &ioc->sas_topology, list)
259 for (i = 0; i < port_info->num_phys; i++)
260 if (port_info->phy_info[i].identify.handle == handle) {
261 rc = port_info;
262 goto out;
263 }
264 out:
265 return rc;
266 }
267
268 /*
269 * Returns true if there is a scsi end device
270 */
271 static inline int
272 mptsas_is_end_device(struct mptsas_devinfo * attached)
273 {
274 if ((attached->sas_address) &&
275 (attached->device_info &
276 MPI_SAS_DEVICE_INFO_END_DEVICE) &&
277 ((attached->device_info &
278 MPI_SAS_DEVICE_INFO_SSP_TARGET) |
279 (attached->device_info &
280 MPI_SAS_DEVICE_INFO_STP_TARGET) |
281 (attached->device_info &
282 MPI_SAS_DEVICE_INFO_SATA_DEVICE)))
283 return 1;
284 else
285 return 0;
286 }
287
288 /* no mutex */
289 static void
290 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
291 {
292 struct mptsas_portinfo *port_info;
293 struct mptsas_phyinfo *phy_info;
294 u8 i;
295
296 if (!port_details)
297 return;
298
299 port_info = port_details->port_info;
300 phy_info = port_info->phy_info;
301
302 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: [%p]: num_phys=%02d "
303 "bitmask=0x%016llX\n", ioc->name, __FUNCTION__, port_details,
304 port_details->num_phys, (unsigned long long)
305 port_details->phy_bitmask));
306
307 for (i = 0; i < port_info->num_phys; i++, phy_info++) {
308 if(phy_info->port_details != port_details)
309 continue;
310 memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
311 phy_info->port_details = NULL;
312 }
313 kfree(port_details);
314 }
315
316 static inline struct sas_rphy *
317 mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
318 {
319 if (phy_info->port_details)
320 return phy_info->port_details->rphy;
321 else
322 return NULL;
323 }
324
325 static inline void
326 mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
327 {
328 if (phy_info->port_details) {
329 phy_info->port_details->rphy = rphy;
330 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
331 ioc->name, rphy));
332 }
333
334 if (rphy) {
335 dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
336 &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
337 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
338 ioc->name, rphy, rphy->dev.release));
339 }
340 }
341
342 static inline struct sas_port *
343 mptsas_get_port(struct mptsas_phyinfo *phy_info)
344 {
345 if (phy_info->port_details)
346 return phy_info->port_details->port;
347 else
348 return NULL;
349 }
350
351 static inline void
352 mptsas_set_port(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_port *port)
353 {
354 if (phy_info->port_details)
355 phy_info->port_details->port = port;
356
357 if (port) {
358 dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
359 &port->dev, MYIOC_s_FMT "add:", ioc->name));
360 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "port=%p release=%p\n",
361 ioc->name, port, port->dev.release));
362 }
363 }
364
365 static inline struct scsi_target *
366 mptsas_get_starget(struct mptsas_phyinfo *phy_info)
367 {
368 if (phy_info->port_details)
369 return phy_info->port_details->starget;
370 else
371 return NULL;
372 }
373
374 static inline void
375 mptsas_set_starget(struct mptsas_phyinfo *phy_info, struct scsi_target *
376 starget)
377 {
378 if (phy_info->port_details)
379 phy_info->port_details->starget = starget;
380 }
381
382
383 /*
384 * mptsas_setup_wide_ports
385 *
386 * Updates for new and existing narrow/wide port configuration
387 * in the sas_topology
388 */
389 static void
390 mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)
391 {
392 struct mptsas_portinfo_details * port_details;
393 struct mptsas_phyinfo *phy_info, *phy_info_cmp;
394 u64 sas_address;
395 int i, j;
396
397 mutex_lock(&ioc->sas_topology_mutex);
398
399 phy_info = port_info->phy_info;
400 for (i = 0 ; i < port_info->num_phys ; i++, phy_info++) {
401 if (phy_info->attached.handle)
402 continue;
403 port_details = phy_info->port_details;
404 if (!port_details)
405 continue;
406 if (port_details->num_phys < 2)
407 continue;
408 /*
409 * Removing a phy from a port, letting the last
410 * phy be removed by firmware events.
411 */
412 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
413 "%s: [%p]: deleting phy = %d\n",
414 ioc->name, __FUNCTION__, port_details, i));
415 port_details->num_phys--;
416 port_details->phy_bitmask &= ~ (1 << phy_info->phy_id);
417 memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
418 sas_port_delete_phy(port_details->port, phy_info->phy);
419 phy_info->port_details = NULL;
420 }
421
422 /*
423 * Populate and refresh the tree
424 */
425 phy_info = port_info->phy_info;
426 for (i = 0 ; i < port_info->num_phys ; i++, phy_info++) {
427 sas_address = phy_info->attached.sas_address;
428 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "phy_id=%d sas_address=0x%018llX\n",
429 ioc->name, i, (unsigned long long)sas_address));
430 if (!sas_address)
431 continue;
432 port_details = phy_info->port_details;
433 /*
434 * Forming a port
435 */
436 if (!port_details) {
437 port_details = kzalloc(sizeof(*port_details),
438 GFP_KERNEL);
439 if (!port_details)
440 goto out;
441 port_details->num_phys = 1;
442 port_details->port_info = port_info;
443 if (phy_info->phy_id < 64 )
444 port_details->phy_bitmask |=
445 (1 << phy_info->phy_id);
446 phy_info->sas_port_add_phy=1;
447 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tForming port\n\t\t"
448 "phy_id=%d sas_address=0x%018llX\n",
449 ioc->name, i, (unsigned long long)sas_address));
450 phy_info->port_details = port_details;
451 }
452
453 if (i == port_info->num_phys - 1)
454 continue;
455 phy_info_cmp = &port_info->phy_info[i + 1];
456 for (j = i + 1 ; j < port_info->num_phys ; j++,
457 phy_info_cmp++) {
458 if (!phy_info_cmp->attached.sas_address)
459 continue;
460 if (sas_address != phy_info_cmp->attached.sas_address)
461 continue;
462 if (phy_info_cmp->port_details == port_details )
463 continue;
464 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
465 "\t\tphy_id=%d sas_address=0x%018llX\n",
466 ioc->name, j, (unsigned long long)
467 phy_info_cmp->attached.sas_address));
468 if (phy_info_cmp->port_details) {
469 port_details->rphy =
470 mptsas_get_rphy(phy_info_cmp);
471 port_details->port =
472 mptsas_get_port(phy_info_cmp);
473 port_details->starget =
474 mptsas_get_starget(phy_info_cmp);
475 port_details->num_phys =
476 phy_info_cmp->port_details->num_phys;
477 if (!phy_info_cmp->port_details->num_phys)
478 kfree(phy_info_cmp->port_details);
479 } else
480 phy_info_cmp->sas_port_add_phy=1;
481 /*
482 * Adding a phy to a port
483 */
484 phy_info_cmp->port_details = port_details;
485 if (phy_info_cmp->phy_id < 64 )
486 port_details->phy_bitmask |=
487 (1 << phy_info_cmp->phy_id);
488 port_details->num_phys++;
489 }
490 }
491
492 out:
493
494 for (i = 0; i < port_info->num_phys; i++) {
495 port_details = port_info->phy_info[i].port_details;
496 if (!port_details)
497 continue;
498 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
499 "%s: [%p]: phy_id=%02d num_phys=%02d "
500 "bitmask=0x%016llX\n", ioc->name, __FUNCTION__,
501 port_details, i, port_details->num_phys,
502 (unsigned long long)port_details->phy_bitmask));
503 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\t\tport = %p rphy=%p\n",
504 ioc->name, port_details->port, port_details->rphy));
505 }
506 dsaswideprintk(ioc, printk("\n"));
507 mutex_unlock(&ioc->sas_topology_mutex);
508 }
509
510 /**
511 * csmisas_find_vtarget
512 *
513 * @ioc
514 * @volume_id
515 * @volume_bus
516 *
517 **/
518 static VirtTarget *
519 mptsas_find_vtarget(MPT_ADAPTER *ioc, u8 channel, u8 id)
520 {
521 struct scsi_device *sdev;
522 VirtDevice *vdevice;
523 VirtTarget *vtarget = NULL;
524
525 shost_for_each_device(sdev, ioc->sh) {
526 if ((vdevice = sdev->hostdata) == NULL)
527 continue;
528 if (vdevice->vtarget->id == id &&
529 vdevice->vtarget->channel == channel)
530 vtarget = vdevice->vtarget;
531 }
532 return vtarget;
533 }
534
535 /**
536 * mptsas_target_reset
537 *
538 * Issues TARGET_RESET to end device using handshaking method
539 *
540 * @ioc
541 * @channel
542 * @id
543 *
544 * Returns (1) success
545 * (0) failure
546 *
547 **/
548 static int
549 mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id)
550 {
551 MPT_FRAME_HDR *mf;
552 SCSITaskMgmt_t *pScsiTm;
553
554 if ((mf = mpt_get_msg_frame(ioc->TaskCtx, ioc)) == NULL) {
555 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, no msg frames @%d!!\n",
556 ioc->name,__FUNCTION__, __LINE__));
557 return 0;
558 }
559
560 /* Format the Request
561 */
562 pScsiTm = (SCSITaskMgmt_t *) mf;
563 memset (pScsiTm, 0, sizeof(SCSITaskMgmt_t));
564 pScsiTm->TargetID = id;
565 pScsiTm->Bus = channel;
566 pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
567 pScsiTm->TaskType = MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
568 pScsiTm->MsgFlags = MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION;
569
570 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
571
572 mpt_put_msg_frame_hi_pri(ioc->TaskCtx, ioc, mf);
573
574 return 1;
575 }
576
577 /**
578 * mptsas_target_reset_queue
579 *
580 * Receive request for TARGET_RESET after recieving an firmware
581 * event NOT_RESPONDING_EVENT, then put command in link list
582 * and queue if task_queue already in use.
583 *
584 * @ioc
585 * @sas_event_data
586 *
587 **/
588 static void
589 mptsas_target_reset_queue(MPT_ADAPTER *ioc,
590 EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data)
591 {
592 MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
593 VirtTarget *vtarget = NULL;
594 struct mptsas_target_reset_event *target_reset_list;
595 u8 id, channel;
596
597 id = sas_event_data->TargetID;
598 channel = sas_event_data->Bus;
599
600 if (!(vtarget = mptsas_find_vtarget(ioc, channel, id)))
601 return;
602
603 vtarget->deleted = 1; /* block IO */
604
605 target_reset_list = kzalloc(sizeof(*target_reset_list),
606 GFP_ATOMIC);
607 if (!target_reset_list) {
608 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n",
609 ioc->name,__FUNCTION__, __LINE__));
610 return;
611 }
612
613 memcpy(&target_reset_list->sas_event_data, sas_event_data,
614 sizeof(*sas_event_data));
615 list_add_tail(&target_reset_list->list, &hd->target_reset_list);
616
617 if (hd->resetPending)
618 return;
619
620 if (mptsas_target_reset(ioc, channel, id)) {
621 target_reset_list->target_reset_issued = 1;
622 hd->resetPending = 1;
623 }
624 }
625
626 /**
627 * mptsas_dev_reset_complete
628 *
629 * Completion for TARGET_RESET after NOT_RESPONDING_EVENT,
630 * enable work queue to finish off removing device from upper layers.
631 * then send next TARGET_RESET in the queue.
632 *
633 * @ioc
634 *
635 **/
636 static void
637 mptsas_dev_reset_complete(MPT_ADAPTER *ioc)
638 {
639 MPT_SCSI_HOST *hd = shost_priv(ioc->sh);
640 struct list_head *head = &hd->target_reset_list;
641 struct mptsas_target_reset_event *target_reset_list;
642 struct mptsas_hotplug_event *ev;
643 EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data;
644 u8 id, channel;
645 __le64 sas_address;
646
647 if (list_empty(head))
648 return;
649
650 target_reset_list = list_entry(head->next, struct mptsas_target_reset_event, list);
651
652 sas_event_data = &target_reset_list->sas_event_data;
653 id = sas_event_data->TargetID;
654 channel = sas_event_data->Bus;
655 hd->resetPending = 0;
656
657 /*
658 * retry target reset
659 */
660 if (!target_reset_list->target_reset_issued) {
661 if (mptsas_target_reset(ioc, channel, id)) {
662 target_reset_list->target_reset_issued = 1;
663 hd->resetPending = 1;
664 }
665 return;
666 }
667
668 /*
669 * enable work queue to remove device from upper layers
670 */
671 list_del(&target_reset_list->list);
672
673 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
674 if (!ev) {
675 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n",
676 ioc->name,__FUNCTION__, __LINE__));
677 return;
678 }
679
680 INIT_WORK(&ev->work, mptsas_hotplug_work);
681 ev->ioc = ioc;
682 ev->handle = le16_to_cpu(sas_event_data->DevHandle);
683 ev->parent_handle =
684 le16_to_cpu(sas_event_data->ParentDevHandle);
685 ev->channel = channel;
686 ev->id =id;
687 ev->phy_id = sas_event_data->PhyNum;
688 memcpy(&sas_address, &sas_event_data->SASAddress,
689 sizeof(__le64));
690 ev->sas_address = le64_to_cpu(sas_address);
691 ev->device_info = le32_to_cpu(sas_event_data->DeviceInfo);
692 ev->event_type = MPTSAS_DEL_DEVICE;
693 schedule_work(&ev->work);
694 kfree(target_reset_list);
695
696 /*
697 * issue target reset to next device in the queue
698 */
699
700 head = &hd->target_reset_list;
701 if (list_empty(head))
702 return;
703
704 target_reset_list = list_entry(head->next, struct mptsas_target_reset_event,
705 list);
706
707 sas_event_data = &target_reset_list->sas_event_data;
708 id = sas_event_data->TargetID;
709 channel = sas_event_data->Bus;
710
711 if (mptsas_target_reset(ioc, channel, id)) {
712 target_reset_list->target_reset_issued = 1;
713 hd->resetPending = 1;
714 }
715 }
716
717 /**
718 * mptsas_taskmgmt_complete
719 *
720 * @ioc
721 * @mf
722 * @mr
723 *
724 **/
725 static int
726 mptsas_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
727 {
728 mptsas_dev_reset_complete(ioc);
729 return mptscsih_taskmgmt_complete(ioc, mf, mr);
730 }
731
732 /**
733 * mptscsih_ioc_reset
734 *
735 * @ioc
736 * @reset_phase
737 *
738 **/
739 static int
740 mptsas_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
741 {
742 MPT_SCSI_HOST *hd;
743 struct mptsas_target_reset_event *target_reset_list, *n;
744 int rc;
745
746 rc = mptscsih_ioc_reset(ioc, reset_phase);
747
748 if (ioc->bus_type != SAS)
749 goto out;
750
751 if (reset_phase != MPT_IOC_POST_RESET)
752 goto out;
753
754 if (!ioc->sh || !ioc->sh->hostdata)
755 goto out;
756 hd = shost_priv(ioc->sh);
757 if (!hd->ioc)
758 goto out;
759
760 if (list_empty(&hd->target_reset_list))
761 goto out;
762
763 /* flush the target_reset_list */
764 list_for_each_entry_safe(target_reset_list, n,
765 &hd->target_reset_list, list) {
766 list_del(&target_reset_list->list);
767 kfree(target_reset_list);
768 }
769
770 out:
771 return rc;
772 }
773
774 static int
775 mptsas_sas_enclosure_pg0(MPT_ADAPTER *ioc, struct mptsas_enclosure *enclosure,
776 u32 form, u32 form_specific)
777 {
778 ConfigExtendedPageHeader_t hdr;
779 CONFIGPARMS cfg;
780 SasEnclosurePage0_t *buffer;
781 dma_addr_t dma_handle;
782 int error;
783 __le64 le_identifier;
784
785 memset(&hdr, 0, sizeof(hdr));
786 hdr.PageVersion = MPI_SASENCLOSURE0_PAGEVERSION;
787 hdr.PageNumber = 0;
788 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
789 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_ENCLOSURE;
790
791 cfg.cfghdr.ehdr = &hdr;
792 cfg.physAddr = -1;
793 cfg.pageAddr = form + form_specific;
794 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
795 cfg.dir = 0; /* read */
796 cfg.timeout = 10;
797
798 error = mpt_config(ioc, &cfg);
799 if (error)
800 goto out;
801 if (!hdr.ExtPageLength) {
802 error = -ENXIO;
803 goto out;
804 }
805
806 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
807 &dma_handle);
808 if (!buffer) {
809 error = -ENOMEM;
810 goto out;
811 }
812
813 cfg.physAddr = dma_handle;
814 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
815
816 error = mpt_config(ioc, &cfg);
817 if (error)
818 goto out_free_consistent;
819
820 /* save config data */
821 memcpy(&le_identifier, &buffer->EnclosureLogicalID, sizeof(__le64));
822 enclosure->enclosure_logical_id = le64_to_cpu(le_identifier);
823 enclosure->enclosure_handle = le16_to_cpu(buffer->EnclosureHandle);
824 enclosure->flags = le16_to_cpu(buffer->Flags);
825 enclosure->num_slot = le16_to_cpu(buffer->NumSlots);
826 enclosure->start_slot = le16_to_cpu(buffer->StartSlot);
827 enclosure->start_id = buffer->StartTargetID;
828 enclosure->start_channel = buffer->StartBus;
829 enclosure->sep_id = buffer->SEPTargetID;
830 enclosure->sep_channel = buffer->SEPBus;
831
832 out_free_consistent:
833 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
834 buffer, dma_handle);
835 out:
836 return error;
837 }
838
839 static int
840 mptsas_slave_configure(struct scsi_device *sdev)
841 {
842
843 if (sdev->channel == MPTSAS_RAID_CHANNEL)
844 goto out;
845
846 sas_read_port_mode_page(sdev);
847
848 out:
849 return mptscsih_slave_configure(sdev);
850 }
851
852 static int
853 mptsas_target_alloc(struct scsi_target *starget)
854 {
855 struct Scsi_Host *host = dev_to_shost(&starget->dev);
856 MPT_SCSI_HOST *hd = shost_priv(host);
857 VirtTarget *vtarget;
858 u8 id, channel;
859 struct sas_rphy *rphy;
860 struct mptsas_portinfo *p;
861 int i;
862 MPT_ADAPTER *ioc = hd->ioc;
863
864 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
865 if (!vtarget)
866 return -ENOMEM;
867
868 vtarget->starget = starget;
869 vtarget->ioc_id = ioc->id;
870 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES;
871 id = starget->id;
872 channel = 0;
873
874 /*
875 * RAID volumes placed beyond the last expected port.
876 */
877 if (starget->channel == MPTSAS_RAID_CHANNEL) {
878 for (i=0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++)
879 if (id == ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID)
880 channel = ioc->raid_data.pIocPg2->RaidVolume[i].VolumeBus;
881 goto out;
882 }
883
884 rphy = dev_to_rphy(starget->dev.parent);
885 mutex_lock(&ioc->sas_topology_mutex);
886 list_for_each_entry(p, &ioc->sas_topology, list) {
887 for (i = 0; i < p->num_phys; i++) {
888 if (p->phy_info[i].attached.sas_address !=
889 rphy->identify.sas_address)
890 continue;
891 id = p->phy_info[i].attached.id;
892 channel = p->phy_info[i].attached.channel;
893 mptsas_set_starget(&p->phy_info[i], starget);
894
895 /*
896 * Exposing hidden raid components
897 */
898 if (mptscsih_is_phys_disk(ioc, channel, id)) {
899 id = mptscsih_raid_id_to_num(ioc,
900 channel, id);
901 vtarget->tflags |=
902 MPT_TARGET_FLAGS_RAID_COMPONENT;
903 p->phy_info[i].attached.phys_disk_num = id;
904 }
905 mutex_unlock(&ioc->sas_topology_mutex);
906 goto out;
907 }
908 }
909 mutex_unlock(&ioc->sas_topology_mutex);
910
911 kfree(vtarget);
912 return -ENXIO;
913
914 out:
915 vtarget->id = id;
916 vtarget->channel = channel;
917 starget->hostdata = vtarget;
918 return 0;
919 }
920
921 static void
922 mptsas_target_destroy(struct scsi_target *starget)
923 {
924 struct Scsi_Host *host = dev_to_shost(&starget->dev);
925 MPT_SCSI_HOST *hd = shost_priv(host);
926 struct sas_rphy *rphy;
927 struct mptsas_portinfo *p;
928 int i;
929 MPT_ADAPTER *ioc = hd->ioc;
930
931 if (!starget->hostdata)
932 return;
933
934 if (starget->channel == MPTSAS_RAID_CHANNEL)
935 goto out;
936
937 rphy = dev_to_rphy(starget->dev.parent);
938 list_for_each_entry(p, &ioc->sas_topology, list) {
939 for (i = 0; i < p->num_phys; i++) {
940 if (p->phy_info[i].attached.sas_address !=
941 rphy->identify.sas_address)
942 continue;
943 mptsas_set_starget(&p->phy_info[i], NULL);
944 goto out;
945 }
946 }
947
948 out:
949 kfree(starget->hostdata);
950 starget->hostdata = NULL;
951 }
952
953
954 static int
955 mptsas_slave_alloc(struct scsi_device *sdev)
956 {
957 struct Scsi_Host *host = sdev->host;
958 MPT_SCSI_HOST *hd = shost_priv(host);
959 struct sas_rphy *rphy;
960 struct mptsas_portinfo *p;
961 VirtDevice *vdevice;
962 struct scsi_target *starget;
963 int i;
964 MPT_ADAPTER *ioc = hd->ioc;
965
966 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
967 if (!vdevice) {
968 printk(MYIOC_s_ERR_FMT "slave_alloc kzalloc(%zd) FAILED!\n",
969 ioc->name, sizeof(VirtDevice));
970 return -ENOMEM;
971 }
972 starget = scsi_target(sdev);
973 vdevice->vtarget = starget->hostdata;
974
975 if (sdev->channel == MPTSAS_RAID_CHANNEL)
976 goto out;
977
978 rphy = dev_to_rphy(sdev->sdev_target->dev.parent);
979 mutex_lock(&ioc->sas_topology_mutex);
980 list_for_each_entry(p, &ioc->sas_topology, list) {
981 for (i = 0; i < p->num_phys; i++) {
982 if (p->phy_info[i].attached.sas_address !=
983 rphy->identify.sas_address)
984 continue;
985 vdevice->lun = sdev->lun;
986 /*
987 * Exposing hidden raid components
988 */
989 if (mptscsih_is_phys_disk(ioc,
990 p->phy_info[i].attached.channel,
991 p->phy_info[i].attached.id))
992 sdev->no_uld_attach = 1;
993 mutex_unlock(&ioc->sas_topology_mutex);
994 goto out;
995 }
996 }
997 mutex_unlock(&ioc->sas_topology_mutex);
998
999 kfree(vdevice);
1000 return -ENXIO;
1001
1002 out:
1003 vdevice->vtarget->num_luns++;
1004 sdev->hostdata = vdevice;
1005 return 0;
1006 }
1007
1008 static int
1009 mptsas_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
1010 {
1011 VirtDevice *vdevice = SCpnt->device->hostdata;
1012
1013 if (!vdevice || !vdevice->vtarget || vdevice->vtarget->deleted) {
1014 SCpnt->result = DID_NO_CONNECT << 16;
1015 done(SCpnt);
1016 return 0;
1017 }
1018
1019 // scsi_print_command(SCpnt);
1020
1021 return mptscsih_qcmd(SCpnt,done);
1022 }
1023
1024
1025 static struct scsi_host_template mptsas_driver_template = {
1026 .module = THIS_MODULE,
1027 .proc_name = "mptsas",
1028 .proc_info = mptscsih_proc_info,
1029 .name = "MPT SPI Host",
1030 .info = mptscsih_info,
1031 .queuecommand = mptsas_qcmd,
1032 .target_alloc = mptsas_target_alloc,
1033 .slave_alloc = mptsas_slave_alloc,
1034 .slave_configure = mptsas_slave_configure,
1035 .target_destroy = mptsas_target_destroy,
1036 .slave_destroy = mptscsih_slave_destroy,
1037 .change_queue_depth = mptscsih_change_queue_depth,
1038 .eh_abort_handler = mptscsih_abort,
1039 .eh_device_reset_handler = mptscsih_dev_reset,
1040 .eh_bus_reset_handler = mptscsih_bus_reset,
1041 .eh_host_reset_handler = mptscsih_host_reset,
1042 .bios_param = mptscsih_bios_param,
1043 .can_queue = MPT_FC_CAN_QUEUE,
1044 .this_id = -1,
1045 .sg_tablesize = MPT_SCSI_SG_DEPTH,
1046 .max_sectors = 8192,
1047 .cmd_per_lun = 7,
1048 .use_clustering = ENABLE_CLUSTERING,
1049 .shost_attrs = mptscsih_host_attrs,
1050 };
1051
1052 static int mptsas_get_linkerrors(struct sas_phy *phy)
1053 {
1054 MPT_ADAPTER *ioc = phy_to_ioc(phy);
1055 ConfigExtendedPageHeader_t hdr;
1056 CONFIGPARMS cfg;
1057 SasPhyPage1_t *buffer;
1058 dma_addr_t dma_handle;
1059 int error;
1060
1061 /* FIXME: only have link errors on local phys */
1062 if (!scsi_is_sas_phy_local(phy))
1063 return -EINVAL;
1064
1065 hdr.PageVersion = MPI_SASPHY1_PAGEVERSION;
1066 hdr.ExtPageLength = 0;
1067 hdr.PageNumber = 1 /* page number 1*/;
1068 hdr.Reserved1 = 0;
1069 hdr.Reserved2 = 0;
1070 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1071 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_PHY;
1072
1073 cfg.cfghdr.ehdr = &hdr;
1074 cfg.physAddr = -1;
1075 cfg.pageAddr = phy->identify.phy_identifier;
1076 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1077 cfg.dir = 0; /* read */
1078 cfg.timeout = 10;
1079
1080 error = mpt_config(ioc, &cfg);
1081 if (error)
1082 return error;
1083 if (!hdr.ExtPageLength)
1084 return -ENXIO;
1085
1086 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1087 &dma_handle);
1088 if (!buffer)
1089 return -ENOMEM;
1090
1091 cfg.physAddr = dma_handle;
1092 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1093
1094 error = mpt_config(ioc, &cfg);
1095 if (error)
1096 goto out_free_consistent;
1097
1098 mptsas_print_phy_pg1(ioc, buffer);
1099
1100 phy->invalid_dword_count = le32_to_cpu(buffer->InvalidDwordCount);
1101 phy->running_disparity_error_count =
1102 le32_to_cpu(buffer->RunningDisparityErrorCount);
1103 phy->loss_of_dword_sync_count =
1104 le32_to_cpu(buffer->LossDwordSynchCount);
1105 phy->phy_reset_problem_count =
1106 le32_to_cpu(buffer->PhyResetProblemCount);
1107
1108 out_free_consistent:
1109 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1110 buffer, dma_handle);
1111 return error;
1112 }
1113
1114 static int mptsas_mgmt_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
1115 MPT_FRAME_HDR *reply)
1116 {
1117 ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_COMMAND_GOOD;
1118 if (reply != NULL) {
1119 ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_RF_VALID;
1120 memcpy(ioc->sas_mgmt.reply, reply,
1121 min(ioc->reply_sz, 4 * reply->u.reply.MsgLength));
1122 }
1123 complete(&ioc->sas_mgmt.done);
1124 return 1;
1125 }
1126
1127 static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset)
1128 {
1129 MPT_ADAPTER *ioc = phy_to_ioc(phy);
1130 SasIoUnitControlRequest_t *req;
1131 SasIoUnitControlReply_t *reply;
1132 MPT_FRAME_HDR *mf;
1133 MPIHeader_t *hdr;
1134 unsigned long timeleft;
1135 int error = -ERESTARTSYS;
1136
1137 /* FIXME: fusion doesn't allow non-local phy reset */
1138 if (!scsi_is_sas_phy_local(phy))
1139 return -EINVAL;
1140
1141 /* not implemented for expanders */
1142 if (phy->identify.target_port_protocols & SAS_PROTOCOL_SMP)
1143 return -ENXIO;
1144
1145 if (mutex_lock_interruptible(&ioc->sas_mgmt.mutex))
1146 goto out;
1147
1148 mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc);
1149 if (!mf) {
1150 error = -ENOMEM;
1151 goto out_unlock;
1152 }
1153
1154 hdr = (MPIHeader_t *) mf;
1155 req = (SasIoUnitControlRequest_t *)mf;
1156 memset(req, 0, sizeof(SasIoUnitControlRequest_t));
1157 req->Function = MPI_FUNCTION_SAS_IO_UNIT_CONTROL;
1158 req->MsgContext = hdr->MsgContext;
1159 req->Operation = hard_reset ?
1160 MPI_SAS_OP_PHY_HARD_RESET : MPI_SAS_OP_PHY_LINK_RESET;
1161 req->PhyNum = phy->identify.phy_identifier;
1162
1163 mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf);
1164
1165 timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done,
1166 10 * HZ);
1167 if (!timeleft) {
1168 /* On timeout reset the board */
1169 mpt_free_msg_frame(ioc, mf);
1170 mpt_HardResetHandler(ioc, CAN_SLEEP);
1171 error = -ETIMEDOUT;
1172 goto out_unlock;
1173 }
1174
1175 /* a reply frame is expected */
1176 if ((ioc->sas_mgmt.status &
1177 MPT_IOCTL_STATUS_RF_VALID) == 0) {
1178 error = -ENXIO;
1179 goto out_unlock;
1180 }
1181
1182 /* process the completed Reply Message Frame */
1183 reply = (SasIoUnitControlReply_t *)ioc->sas_mgmt.reply;
1184 if (reply->IOCStatus != MPI_IOCSTATUS_SUCCESS) {
1185 printk(MYIOC_s_INFO_FMT "%s: IOCStatus=0x%X IOCLogInfo=0x%X\n",
1186 ioc->name, __FUNCTION__, reply->IOCStatus, reply->IOCLogInfo);
1187 error = -ENXIO;
1188 goto out_unlock;
1189 }
1190
1191 error = 0;
1192
1193 out_unlock:
1194 mutex_unlock(&ioc->sas_mgmt.mutex);
1195 out:
1196 return error;
1197 }
1198
1199 static int
1200 mptsas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
1201 {
1202 MPT_ADAPTER *ioc = rphy_to_ioc(rphy);
1203 int i, error;
1204 struct mptsas_portinfo *p;
1205 struct mptsas_enclosure enclosure_info;
1206 u64 enclosure_handle;
1207
1208 mutex_lock(&ioc->sas_topology_mutex);
1209 list_for_each_entry(p, &ioc->sas_topology, list) {
1210 for (i = 0; i < p->num_phys; i++) {
1211 if (p->phy_info[i].attached.sas_address ==
1212 rphy->identify.sas_address) {
1213 enclosure_handle = p->phy_info[i].
1214 attached.handle_enclosure;
1215 goto found_info;
1216 }
1217 }
1218 }
1219 mutex_unlock(&ioc->sas_topology_mutex);
1220 return -ENXIO;
1221
1222 found_info:
1223 mutex_unlock(&ioc->sas_topology_mutex);
1224 memset(&enclosure_info, 0, sizeof(struct mptsas_enclosure));
1225 error = mptsas_sas_enclosure_pg0(ioc, &enclosure_info,
1226 (MPI_SAS_ENCLOS_PGAD_FORM_HANDLE <<
1227 MPI_SAS_ENCLOS_PGAD_FORM_SHIFT), enclosure_handle);
1228 if (!error)
1229 *identifier = enclosure_info.enclosure_logical_id;
1230 return error;
1231 }
1232
1233 static int
1234 mptsas_get_bay_identifier(struct sas_rphy *rphy)
1235 {
1236 MPT_ADAPTER *ioc = rphy_to_ioc(rphy);
1237 struct mptsas_portinfo *p;
1238 int i, rc;
1239
1240 mutex_lock(&ioc->sas_topology_mutex);
1241 list_for_each_entry(p, &ioc->sas_topology, list) {
1242 for (i = 0; i < p->num_phys; i++) {
1243 if (p->phy_info[i].attached.sas_address ==
1244 rphy->identify.sas_address) {
1245 rc = p->phy_info[i].attached.slot;
1246 goto out;
1247 }
1248 }
1249 }
1250 rc = -ENXIO;
1251 out:
1252 mutex_unlock(&ioc->sas_topology_mutex);
1253 return rc;
1254 }
1255
1256 static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
1257 struct request *req)
1258 {
1259 MPT_ADAPTER *ioc = ((MPT_SCSI_HOST *) shost->hostdata)->ioc;
1260 MPT_FRAME_HDR *mf;
1261 SmpPassthroughRequest_t *smpreq;
1262 struct request *rsp = req->next_rq;
1263 int ret;
1264 int flagsLength;
1265 unsigned long timeleft;
1266 char *psge;
1267 dma_addr_t dma_addr_in = 0;
1268 dma_addr_t dma_addr_out = 0;
1269 u64 sas_address = 0;
1270
1271 if (!rsp) {
1272 printk(MYIOC_s_ERR_FMT "%s: the smp response space is missing\n",
1273 ioc->name, __FUNCTION__);
1274 return -EINVAL;
1275 }
1276
1277 /* do we need to support multiple segments? */
1278 if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
1279 printk(MYIOC_s_ERR_FMT "%s: multiple segments req %u %u, rsp %u %u\n",
1280 ioc->name, __FUNCTION__, req->bio->bi_vcnt, req->data_len,
1281 rsp->bio->bi_vcnt, rsp->data_len);
1282 return -EINVAL;
1283 }
1284
1285 ret = mutex_lock_interruptible(&ioc->sas_mgmt.mutex);
1286 if (ret)
1287 goto out;
1288
1289 mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc);
1290 if (!mf) {
1291 ret = -ENOMEM;
1292 goto out_unlock;
1293 }
1294
1295 smpreq = (SmpPassthroughRequest_t *)mf;
1296 memset(smpreq, 0, sizeof(*smpreq));
1297
1298 smpreq->RequestDataLength = cpu_to_le16(req->data_len - 4);
1299 smpreq->Function = MPI_FUNCTION_SMP_PASSTHROUGH;
1300
1301 if (rphy)
1302 sas_address = rphy->identify.sas_address;
1303 else {
1304 struct mptsas_portinfo *port_info;
1305
1306 mutex_lock(&ioc->sas_topology_mutex);
1307 port_info = mptsas_get_hba_portinfo(ioc);
1308 if (port_info && port_info->phy_info)
1309 sas_address =
1310 port_info->phy_info[0].phy->identify.sas_address;
1311 mutex_unlock(&ioc->sas_topology_mutex);
1312 }
1313
1314 *((u64 *)&smpreq->SASAddress) = cpu_to_le64(sas_address);
1315
1316 psge = (char *)
1317 (((int *) mf) + (offsetof(SmpPassthroughRequest_t, SGL) / 4));
1318
1319 /* request */
1320 flagsLength = (MPI_SGE_FLAGS_SIMPLE_ELEMENT |
1321 MPI_SGE_FLAGS_END_OF_BUFFER |
1322 MPI_SGE_FLAGS_DIRECTION |
1323 mpt_addr_size()) << MPI_SGE_FLAGS_SHIFT;
1324 flagsLength |= (req->data_len - 4);
1325
1326 dma_addr_out = pci_map_single(ioc->pcidev, bio_data(req->bio),
1327 req->data_len, PCI_DMA_BIDIRECTIONAL);
1328 if (!dma_addr_out)
1329 goto put_mf;
1330 mpt_add_sge(psge, flagsLength, dma_addr_out);
1331 psge += (sizeof(u32) + sizeof(dma_addr_t));
1332
1333 /* response */
1334 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
1335 flagsLength |= rsp->data_len + 4;
1336 dma_addr_in = pci_map_single(ioc->pcidev, bio_data(rsp->bio),
1337 rsp->data_len, PCI_DMA_BIDIRECTIONAL);
1338 if (!dma_addr_in)
1339 goto unmap;
1340 mpt_add_sge(psge, flagsLength, dma_addr_in);
1341
1342 mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf);
1343
1344 timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done, 10 * HZ);
1345 if (!timeleft) {
1346 printk(MYIOC_s_ERR_FMT "%s: smp timeout!\n", ioc->name, __FUNCTION__);
1347 /* On timeout reset the board */
1348 mpt_HardResetHandler(ioc, CAN_SLEEP);
1349 ret = -ETIMEDOUT;
1350 goto unmap;
1351 }
1352 mf = NULL;
1353
1354 if (ioc->sas_mgmt.status & MPT_IOCTL_STATUS_RF_VALID) {
1355 SmpPassthroughReply_t *smprep;
1356
1357 smprep = (SmpPassthroughReply_t *)ioc->sas_mgmt.reply;
1358 memcpy(req->sense, smprep, sizeof(*smprep));
1359 req->sense_len = sizeof(*smprep);
1360 req->data_len = 0;
1361 rsp->data_len -= smprep->ResponseDataLength;
1362 } else {
1363 printk(MYIOC_s_ERR_FMT "%s: smp passthru reply failed to be returned\n",
1364 ioc->name, __FUNCTION__);
1365 ret = -ENXIO;
1366 }
1367 unmap:
1368 if (dma_addr_out)
1369 pci_unmap_single(ioc->pcidev, dma_addr_out, req->data_len,
1370 PCI_DMA_BIDIRECTIONAL);
1371 if (dma_addr_in)
1372 pci_unmap_single(ioc->pcidev, dma_addr_in, rsp->data_len,
1373 PCI_DMA_BIDIRECTIONAL);
1374 put_mf:
1375 if (mf)
1376 mpt_free_msg_frame(ioc, mf);
1377 out_unlock:
1378 mutex_unlock(&ioc->sas_mgmt.mutex);
1379 out:
1380 return ret;
1381 }
1382
1383 static struct sas_function_template mptsas_transport_functions = {
1384 .get_linkerrors = mptsas_get_linkerrors,
1385 .get_enclosure_identifier = mptsas_get_enclosure_identifier,
1386 .get_bay_identifier = mptsas_get_bay_identifier,
1387 .phy_reset = mptsas_phy_reset,
1388 .smp_handler = mptsas_smp_handler,
1389 };
1390
1391 static struct scsi_transport_template *mptsas_transport_template;
1392
1393 static int
1394 mptsas_sas_io_unit_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)
1395 {
1396 ConfigExtendedPageHeader_t hdr;
1397 CONFIGPARMS cfg;
1398 SasIOUnitPage0_t *buffer;
1399 dma_addr_t dma_handle;
1400 int error, i;
1401
1402 hdr.PageVersion = MPI_SASIOUNITPAGE0_PAGEVERSION;
1403 hdr.ExtPageLength = 0;
1404 hdr.PageNumber = 0;
1405 hdr.Reserved1 = 0;
1406 hdr.Reserved2 = 0;
1407 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1408 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
1409
1410 cfg.cfghdr.ehdr = &hdr;
1411 cfg.physAddr = -1;
1412 cfg.pageAddr = 0;
1413 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1414 cfg.dir = 0; /* read */
1415 cfg.timeout = 10;
1416
1417 error = mpt_config(ioc, &cfg);
1418 if (error)
1419 goto out;
1420 if (!hdr.ExtPageLength) {
1421 error = -ENXIO;
1422 goto out;
1423 }
1424
1425 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1426 &dma_handle);
1427 if (!buffer) {
1428 error = -ENOMEM;
1429 goto out;
1430 }
1431
1432 cfg.physAddr = dma_handle;
1433 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1434
1435 error = mpt_config(ioc, &cfg);
1436 if (error)
1437 goto out_free_consistent;
1438
1439 port_info->num_phys = buffer->NumPhys;
1440 port_info->phy_info = kcalloc(port_info->num_phys,
1441 sizeof(*port_info->phy_info),GFP_KERNEL);
1442 if (!port_info->phy_info) {
1443 error = -ENOMEM;
1444 goto out_free_consistent;
1445 }
1446
1447 ioc->nvdata_version_persistent =
1448 le16_to_cpu(buffer->NvdataVersionPersistent);
1449 ioc->nvdata_version_default =
1450 le16_to_cpu(buffer->NvdataVersionDefault);
1451
1452 for (i = 0; i < port_info->num_phys; i++) {
1453 mptsas_print_phy_data(ioc, &buffer->PhyData[i]);
1454 port_info->phy_info[i].phy_id = i;
1455 port_info->phy_info[i].port_id =
1456 buffer->PhyData[i].Port;
1457 port_info->phy_info[i].negotiated_link_rate =
1458 buffer->PhyData[i].NegotiatedLinkRate;
1459 port_info->phy_info[i].portinfo = port_info;
1460 port_info->phy_info[i].handle =
1461 le16_to_cpu(buffer->PhyData[i].ControllerDevHandle);
1462 }
1463
1464 out_free_consistent:
1465 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1466 buffer, dma_handle);
1467 out:
1468 return error;
1469 }
1470
1471 static int
1472 mptsas_sas_io_unit_pg1(MPT_ADAPTER *ioc)
1473 {
1474 ConfigExtendedPageHeader_t hdr;
1475 CONFIGPARMS cfg;
1476 SasIOUnitPage1_t *buffer;
1477 dma_addr_t dma_handle;
1478 int error;
1479 u16 device_missing_delay;
1480
1481 memset(&hdr, 0, sizeof(ConfigExtendedPageHeader_t));
1482 memset(&cfg, 0, sizeof(CONFIGPARMS));
1483
1484 cfg.cfghdr.ehdr = &hdr;
1485 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1486 cfg.timeout = 10;
1487 cfg.cfghdr.ehdr->PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1488 cfg.cfghdr.ehdr->ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
1489 cfg.cfghdr.ehdr->PageVersion = MPI_SASIOUNITPAGE1_PAGEVERSION;
1490 cfg.cfghdr.ehdr->PageNumber = 1;
1491
1492 error = mpt_config(ioc, &cfg);
1493 if (error)
1494 goto out;
1495 if (!hdr.ExtPageLength) {
1496 error = -ENXIO;
1497 goto out;
1498 }
1499
1500 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1501 &dma_handle);
1502 if (!buffer) {
1503 error = -ENOMEM;
1504 goto out;
1505 }
1506
1507 cfg.physAddr = dma_handle;
1508 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1509
1510 error = mpt_config(ioc, &cfg);
1511 if (error)
1512 goto out_free_consistent;
1513
1514 ioc->io_missing_delay =
1515 le16_to_cpu(buffer->IODeviceMissingDelay);
1516 device_missing_delay = le16_to_cpu(buffer->ReportDeviceMissingDelay);
1517 ioc->device_missing_delay = (device_missing_delay & MPI_SAS_IOUNIT1_REPORT_MISSING_UNIT_16) ?
1518 (device_missing_delay & MPI_SAS_IOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16 :
1519 device_missing_delay & MPI_SAS_IOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
1520
1521 out_free_consistent:
1522 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1523 buffer, dma_handle);
1524 out:
1525 return error;
1526 }
1527
1528 static int
1529 mptsas_sas_phy_pg0(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info,
1530 u32 form, u32 form_specific)
1531 {
1532 ConfigExtendedPageHeader_t hdr;
1533 CONFIGPARMS cfg;
1534 SasPhyPage0_t *buffer;
1535 dma_addr_t dma_handle;
1536 int error;
1537
1538 hdr.PageVersion = MPI_SASPHY0_PAGEVERSION;
1539 hdr.ExtPageLength = 0;
1540 hdr.PageNumber = 0;
1541 hdr.Reserved1 = 0;
1542 hdr.Reserved2 = 0;
1543 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1544 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_PHY;
1545
1546 cfg.cfghdr.ehdr = &hdr;
1547 cfg.dir = 0; /* read */
1548 cfg.timeout = 10;
1549
1550 /* Get Phy Pg 0 for each Phy. */
1551 cfg.physAddr = -1;
1552 cfg.pageAddr = form + form_specific;
1553 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1554
1555 error = mpt_config(ioc, &cfg);
1556 if (error)
1557 goto out;
1558
1559 if (!hdr.ExtPageLength) {
1560 error = -ENXIO;
1561 goto out;
1562 }
1563
1564 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1565 &dma_handle);
1566 if (!buffer) {
1567 error = -ENOMEM;
1568 goto out;
1569 }
1570
1571 cfg.physAddr = dma_handle;
1572 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1573
1574 error = mpt_config(ioc, &cfg);
1575 if (error)
1576 goto out_free_consistent;
1577
1578 mptsas_print_phy_pg0(ioc, buffer);
1579
1580 phy_info->hw_link_rate = buffer->HwLinkRate;
1581 phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
1582 phy_info->identify.handle = le16_to_cpu(buffer->OwnerDevHandle);
1583 phy_info->attached.handle = le16_to_cpu(buffer->AttachedDevHandle);
1584
1585 out_free_consistent:
1586 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1587 buffer, dma_handle);
1588 out:
1589 return error;
1590 }
1591
1592 static int
1593 mptsas_sas_device_pg0(MPT_ADAPTER *ioc, struct mptsas_devinfo *device_info,
1594 u32 form, u32 form_specific)
1595 {
1596 ConfigExtendedPageHeader_t hdr;
1597 CONFIGPARMS cfg;
1598 SasDevicePage0_t *buffer;
1599 dma_addr_t dma_handle;
1600 __le64 sas_address;
1601 int error=0;
1602
1603 if (ioc->sas_discovery_runtime &&
1604 mptsas_is_end_device(device_info))
1605 goto out;
1606
1607 hdr.PageVersion = MPI_SASDEVICE0_PAGEVERSION;
1608 hdr.ExtPageLength = 0;
1609 hdr.PageNumber = 0;
1610 hdr.Reserved1 = 0;
1611 hdr.Reserved2 = 0;
1612 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1613 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE;
1614
1615 cfg.cfghdr.ehdr = &hdr;
1616 cfg.pageAddr = form + form_specific;
1617 cfg.physAddr = -1;
1618 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1619 cfg.dir = 0; /* read */
1620 cfg.timeout = 10;
1621
1622 memset(device_info, 0, sizeof(struct mptsas_devinfo));
1623 error = mpt_config(ioc, &cfg);
1624 if (error)
1625 goto out;
1626 if (!hdr.ExtPageLength) {
1627 error = -ENXIO;
1628 goto out;
1629 }
1630
1631 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1632 &dma_handle);
1633 if (!buffer) {
1634 error = -ENOMEM;
1635 goto out;
1636 }
1637
1638 cfg.physAddr = dma_handle;
1639 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1640
1641 error = mpt_config(ioc, &cfg);
1642 if (error)
1643 goto out_free_consistent;
1644
1645 mptsas_print_device_pg0(ioc, buffer);
1646
1647 device_info->handle = le16_to_cpu(buffer->DevHandle);
1648 device_info->handle_parent = le16_to_cpu(buffer->ParentDevHandle);
1649 device_info->handle_enclosure =
1650 le16_to_cpu(buffer->EnclosureHandle);
1651 device_info->slot = le16_to_cpu(buffer->Slot);
1652 device_info->phy_id = buffer->PhyNum;
1653 device_info->port_id = buffer->PhysicalPort;
1654 device_info->id = buffer->TargetID;
1655 device_info->phys_disk_num = ~0;
1656 device_info->channel = buffer->Bus;
1657 memcpy(&sas_address, &buffer->SASAddress, sizeof(__le64));
1658 device_info->sas_address = le64_to_cpu(sas_address);
1659 device_info->device_info =
1660 le32_to_cpu(buffer->DeviceInfo);
1661
1662 out_free_consistent:
1663 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1664 buffer, dma_handle);
1665 out:
1666 return error;
1667 }
1668
1669 static int
1670 mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info,
1671 u32 form, u32 form_specific)
1672 {
1673 ConfigExtendedPageHeader_t hdr;
1674 CONFIGPARMS cfg;
1675 SasExpanderPage0_t *buffer;
1676 dma_addr_t dma_handle;
1677 int i, error;
1678
1679 hdr.PageVersion = MPI_SASEXPANDER0_PAGEVERSION;
1680 hdr.ExtPageLength = 0;
1681 hdr.PageNumber = 0;
1682 hdr.Reserved1 = 0;
1683 hdr.Reserved2 = 0;
1684 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1685 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
1686
1687 cfg.cfghdr.ehdr = &hdr;
1688 cfg.physAddr = -1;
1689 cfg.pageAddr = form + form_specific;
1690 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1691 cfg.dir = 0; /* read */
1692 cfg.timeout = 10;
1693
1694 memset(port_info, 0, sizeof(struct mptsas_portinfo));
1695 error = mpt_config(ioc, &cfg);
1696 if (error)
1697 goto out;
1698
1699 if (!hdr.ExtPageLength) {
1700 error = -ENXIO;
1701 goto out;
1702 }
1703
1704 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1705 &dma_handle);
1706 if (!buffer) {
1707 error = -ENOMEM;
1708 goto out;
1709 }
1710
1711 cfg.physAddr = dma_handle;
1712 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1713
1714 error = mpt_config(ioc, &cfg);
1715 if (error)
1716 goto out_free_consistent;
1717
1718 if (!buffer->NumPhys) {
1719 error = -ENODEV;
1720 goto out_free_consistent;
1721 }
1722
1723 /* save config data */
1724 port_info->num_phys = buffer->NumPhys;
1725 port_info->phy_info = kcalloc(port_info->num_phys,
1726 sizeof(*port_info->phy_info),GFP_KERNEL);
1727 if (!port_info->phy_info) {
1728 error = -ENOMEM;
1729 goto out_free_consistent;
1730 }
1731
1732 for (i = 0; i < port_info->num_phys; i++) {
1733 port_info->phy_info[i].portinfo = port_info;
1734 port_info->phy_info[i].handle =
1735 le16_to_cpu(buffer->DevHandle);
1736 }
1737
1738 out_free_consistent:
1739 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1740 buffer, dma_handle);
1741 out:
1742 return error;
1743 }
1744
1745 static int
1746 mptsas_sas_expander_pg1(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info,
1747 u32 form, u32 form_specific)
1748 {
1749 ConfigExtendedPageHeader_t hdr;
1750 CONFIGPARMS cfg;
1751 SasExpanderPage1_t *buffer;
1752 dma_addr_t dma_handle;
1753 int error=0;
1754
1755 if (ioc->sas_discovery_runtime &&
1756 mptsas_is_end_device(&phy_info->attached))
1757 goto out;
1758
1759 hdr.PageVersion = MPI_SASEXPANDER0_PAGEVERSION;
1760 hdr.ExtPageLength = 0;
1761 hdr.PageNumber = 1;
1762 hdr.Reserved1 = 0;
1763 hdr.Reserved2 = 0;
1764 hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1765 hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
1766
1767 cfg.cfghdr.ehdr = &hdr;
1768 cfg.physAddr = -1;
1769 cfg.pageAddr = form + form_specific;
1770 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1771 cfg.dir = 0; /* read */
1772 cfg.timeout = 10;
1773
1774 error = mpt_config(ioc, &cfg);
1775 if (error)
1776 goto out;
1777
1778 if (!hdr.ExtPageLength) {
1779 error = -ENXIO;
1780 goto out;
1781 }
1782
1783 buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1784 &dma_handle);
1785 if (!buffer) {
1786 error = -ENOMEM;
1787 goto out;
1788 }
1789
1790 cfg.physAddr = dma_handle;
1791 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1792
1793 error = mpt_config(ioc, &cfg);
1794 if (error)
1795 goto out_free_consistent;
1796
1797
1798 mptsas_print_expander_pg1(ioc, buffer);
1799
1800 /* save config data */
1801 phy_info->phy_id = buffer->PhyIdentifier;
1802 phy_info->port_id = buffer->PhysicalPort;
1803 phy_info->negotiated_link_rate = buffer->NegotiatedLinkRate;
1804 phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
1805 phy_info->hw_link_rate = buffer->HwLinkRate;
1806 phy_info->identify.handle = le16_to_cpu(buffer->OwnerDevHandle);
1807 phy_info->attached.handle = le16_to_cpu(buffer->AttachedDevHandle);
1808
1809 out_free_consistent:
1810 pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1811 buffer, dma_handle);
1812 out:
1813 return error;
1814 }
1815
1816 static void
1817 mptsas_parse_device_info(struct sas_identify *identify,
1818 struct mptsas_devinfo *device_info)
1819 {
1820 u16 protocols;
1821
1822 identify->sas_address = device_info->sas_address;
1823 identify->phy_identifier = device_info->phy_id;
1824
1825 /*
1826 * Fill in Phy Initiator Port Protocol.
1827 * Bits 6:3, more than one bit can be set, fall through cases.
1828 */
1829 protocols = device_info->device_info & 0x78;
1830 identify->initiator_port_protocols = 0;
1831 if (protocols & MPI_SAS_DEVICE_INFO_SSP_INITIATOR)
1832 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
1833 if (protocols & MPI_SAS_DEVICE_INFO_STP_INITIATOR)
1834 identify->initiator_port_protocols |= SAS_PROTOCOL_STP;
1835 if (protocols & MPI_SAS_DEVICE_INFO_SMP_INITIATOR)
1836 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
1837 if (protocols & MPI_SAS_DEVICE_INFO_SATA_HOST)
1838 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA;
1839
1840 /*
1841 * Fill in Phy Target Port Protocol.
1842 * Bits 10:7, more than one bit can be set, fall through cases.
1843 */
1844 protocols = device_info->device_info & 0x780;
1845 identify->target_port_protocols = 0;
1846 if (protocols & MPI_SAS_DEVICE_INFO_SSP_TARGET)
1847 identify->target_port_protocols |= SAS_PROTOCOL_SSP;
1848 if (protocols & MPI_SAS_DEVICE_INFO_STP_TARGET)
1849 identify->target_port_protocols |= SAS_PROTOCOL_STP;
1850 if (protocols & MPI_SAS_DEVICE_INFO_SMP_TARGET)
1851 identify->target_port_protocols |= SAS_PROTOCOL_SMP;
1852 if (protocols & MPI_SAS_DEVICE_INFO_SATA_DEVICE)
1853 identify->target_port_protocols |= SAS_PROTOCOL_SATA;
1854
1855 /*
1856 * Fill in Attached device type.
1857 */
1858 switch (device_info->device_info &
1859 MPI_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) {
1860 case MPI_SAS_DEVICE_INFO_NO_DEVICE:
1861 identify->device_type = SAS_PHY_UNUSED;
1862 break;
1863 case MPI_SAS_DEVICE_INFO_END_DEVICE:
1864 identify->device_type = SAS_END_DEVICE;
1865 break;
1866 case MPI_SAS_DEVICE_INFO_EDGE_EXPANDER:
1867 identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
1868 break;
1869 case MPI_SAS_DEVICE_INFO_FANOUT_EXPANDER:
1870 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE;
1871 break;
1872 }
1873 }
1874
1875 static int mptsas_probe_one_phy(struct device *dev,
1876 struct mptsas_phyinfo *phy_info, int index, int local)
1877 {
1878 MPT_ADAPTER *ioc;
1879 struct sas_phy *phy;
1880 struct sas_port *port;
1881 int error = 0;
1882
1883 if (!dev) {
1884 error = -ENODEV;
1885 goto out;
1886 }
1887
1888 if (!phy_info->phy) {
1889 phy = sas_phy_alloc(dev, index);
1890 if (!phy) {
1891 error = -ENOMEM;
1892 goto out;
1893 }
1894 } else
1895 phy = phy_info->phy;
1896
1897 mptsas_parse_device_info(&phy->identify, &phy_info->identify);
1898
1899 /*
1900 * Set Negotiated link rate.
1901 */
1902 switch (phy_info->negotiated_link_rate) {
1903 case MPI_SAS_IOUNIT0_RATE_PHY_DISABLED:
1904 phy->negotiated_linkrate = SAS_PHY_DISABLED;
1905 break;
1906 case MPI_SAS_IOUNIT0_RATE_FAILED_SPEED_NEGOTIATION:
1907 phy->negotiated_linkrate = SAS_LINK_RATE_FAILED;
1908 break;
1909 case MPI_SAS_IOUNIT0_RATE_1_5:
1910 phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
1911 break;
1912 case MPI_SAS_IOUNIT0_RATE_3_0:
1913 phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
1914 break;
1915 case MPI_SAS_IOUNIT0_RATE_SATA_OOB_COMPLETE:
1916 case MPI_SAS_IOUNIT0_RATE_UNKNOWN:
1917 default:
1918 phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
1919 break;
1920 }
1921
1922 /*
1923 * Set Max hardware link rate.
1924 */
1925 switch (phy_info->hw_link_rate & MPI_SAS_PHY0_PRATE_MAX_RATE_MASK) {
1926 case MPI_SAS_PHY0_HWRATE_MAX_RATE_1_5:
1927 phy->maximum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
1928 break;
1929 case MPI_SAS_PHY0_PRATE_MAX_RATE_3_0:
1930 phy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
1931 break;
1932 default:
1933 break;
1934 }
1935
1936 /*
1937 * Set Max programmed link rate.
1938 */
1939 switch (phy_info->programmed_link_rate &
1940 MPI_SAS_PHY0_PRATE_MAX_RATE_MASK) {
1941 case MPI_SAS_PHY0_PRATE_MAX_RATE_1_5:
1942 phy->maximum_linkrate = SAS_LINK_RATE_1_5_GBPS;
1943 break;
1944 case MPI_SAS_PHY0_PRATE_MAX_RATE_3_0:
1945 phy->maximum_linkrate = SAS_LINK_RATE_3_0_GBPS;
1946 break;
1947 default:
1948 break;
1949 }
1950
1951 /*
1952 * Set Min hardware link rate.
1953 */
1954 switch (phy_info->hw_link_rate & MPI_SAS_PHY0_HWRATE_MIN_RATE_MASK) {
1955 case MPI_SAS_PHY0_HWRATE_MIN_RATE_1_5:
1956 phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
1957 break;
1958 case MPI_SAS_PHY0_PRATE_MIN_RATE_3_0:
1959 phy->minimum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
1960 break;
1961 default:
1962 break;
1963 }
1964
1965 /*
1966 * Set Min programmed link rate.
1967 */
1968 switch (phy_info->programmed_link_rate &
1969 MPI_SAS_PHY0_PRATE_MIN_RATE_MASK) {
1970 case MPI_SAS_PHY0_PRATE_MIN_RATE_1_5:
1971 phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
1972 break;
1973 case MPI_SAS_PHY0_PRATE_MIN_RATE_3_0:
1974 phy->minimum_linkrate = SAS_LINK_RATE_3_0_GBPS;
1975 break;
1976 default:
1977 break;
1978 }
1979
1980 if (!phy_info->phy) {
1981
1982 error = sas_phy_add(phy);
1983 if (error) {
1984 sas_phy_free(phy);
1985 goto out;
1986 }
1987 phy_info->phy = phy;
1988 }
1989
1990 if (!phy_info->attached.handle ||
1991 !phy_info->port_details)
1992 goto out;
1993
1994 port = mptsas_get_port(phy_info);
1995 ioc = phy_to_ioc(phy_info->phy);
1996
1997 if (phy_info->sas_port_add_phy) {
1998
1999 if (!port) {
2000 port = sas_port_alloc_num(dev);
2001 if (!port) {
2002 error = -ENOMEM;
2003 goto out;
2004 }
2005 error = sas_port_add(port);
2006 if (error) {
2007 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2008 "%s: exit at line=%d\n", ioc->name,
2009 __FUNCTION__, __LINE__));
2010 goto out;
2011 }
2012 mptsas_set_port(ioc, phy_info, port);
2013 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT
2014 "sas_port_alloc: port=%p dev=%p port_id=%d\n",
2015 ioc->name, port, dev, port->port_identifier));
2016 }
2017 dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_port_add_phy: phy_id=%d\n",
2018 ioc->name, phy_info->phy_id));
2019 sas_port_add_phy(port, phy_info->phy);
2020 phy_info->sas_port_add_phy = 0;
2021 }
2022
2023 if (!mptsas_get_rphy(phy_info) && port && !port->rphy) {
2024
2025 struct sas_rphy *rphy;
2026 struct device *parent;
2027 struct sas_identify identify;
2028
2029 parent = dev->parent->parent;
2030 /*
2031 * Let the hotplug_work thread handle processing
2032 * the adding/removing of devices that occur
2033 * after start of day.
2034 */
2035 if (ioc->sas_discovery_runtime &&
2036 mptsas_is_end_device(&phy_info->attached))
2037 goto out;
2038
2039 mptsas_parse_device_info(&identify, &phy_info->attached);
2040 if (scsi_is_host_device(parent)) {
2041 struct mptsas_portinfo *port_info;
2042 int i;
2043
2044 mutex_lock(&ioc->sas_topology_mutex);
2045 port_info = mptsas_get_hba_portinfo(ioc);
2046 mutex_unlock(&ioc->sas_topology_mutex);
2047
2048 for (i = 0; i < port_info->num_phys; i++)
2049 if (port_info->phy_info[i].identify.sas_address ==
2050 identify.sas_address) {
2051 sas_port_mark_backlink(port);
2052 goto out;
2053 }
2054
2055 } else if (scsi_is_sas_rphy(parent)) {
2056 struct sas_rphy *parent_rphy = dev_to_rphy(parent);
2057 if (identify.sas_address ==
2058 parent_rphy->identify.sas_address) {
2059 sas_port_mark_backlink(port);
2060 goto out;
2061 }
2062 }
2063
2064 switch (identify.device_type) {
2065 case SAS_END_DEVICE:
2066 rphy = sas_end_device_alloc(port);
2067 break;
2068 case SAS_EDGE_EXPANDER_DEVICE:
2069 case SAS_FANOUT_EXPANDER_DEVICE:
2070 rphy = sas_expander_alloc(port, identify.device_type);
2071 break;
2072 default:
2073 rphy = NULL;
2074 break;
2075 }
2076 if (!rphy) {
2077 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2078 "%s: exit at line=%d\n", ioc->name,
2079 __FUNCTION__, __LINE__));
2080 goto out;
2081 }
2082
2083 rphy->identify = identify;
2084 error = sas_rphy_add(rphy);
2085 if (error) {
2086 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2087 "%s: exit at line=%d\n", ioc->name,
2088 __FUNCTION__, __LINE__));
2089 sas_rphy_free(rphy);
2090 goto out;
2091 }
2092 mptsas_set_rphy(ioc, phy_info, rphy);
2093 }
2094
2095 out:
2096 return error;
2097 }
2098
2099 static int
2100 mptsas_probe_hba_phys(MPT_ADAPTER *ioc)
2101 {
2102 struct mptsas_portinfo *port_info, *hba;
2103 int error = -ENOMEM, i;
2104
2105 hba = kzalloc(sizeof(*port_info), GFP_KERNEL);
2106 if (! hba)
2107 goto out;
2108
2109 error = mptsas_sas_io_unit_pg0(ioc, hba);
2110 if (error)
2111 goto out_free_port_info;
2112
2113 mptsas_sas_io_unit_pg1(ioc);
2114 mutex_lock(&ioc->sas_topology_mutex);
2115 port_info = mptsas_get_hba_portinfo(ioc);
2116 if (!port_info) {
2117 port_info = hba;
2118 list_add_tail(&port_info->list, &ioc->sas_topology);
2119 } else {
2120 for (i = 0; i < hba->num_phys; i++) {
2121 port_info->phy_info[i].negotiated_link_rate =
2122 hba->phy_info[i].negotiated_link_rate;
2123 port_info->phy_info[i].handle =
2124 hba->phy_info[i].handle;
2125 port_info->phy_info[i].port_id =
2126 hba->phy_info[i].port_id;
2127 }
2128 kfree(hba->phy_info);
2129 kfree(hba);
2130 hba = NULL;
2131 }
2132 mutex_unlock(&ioc->sas_topology_mutex);
2133 for (i = 0; i < port_info->num_phys; i++) {
2134 mptsas_sas_phy_pg0(ioc, &port_info->phy_info[i],
2135 (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
2136 MPI_SAS_PHY_PGAD_FORM_SHIFT), i);
2137
2138 mptsas_sas_device_pg0(ioc, &port_info->phy_info[i].identify,
2139 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
2140 MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
2141 port_info->phy_info[i].handle);
2142 port_info->phy_info[i].identify.phy_id =
2143 port_info->phy_info[i].phy_id = i;
2144 if (port_info->phy_info[i].attached.handle)
2145 mptsas_sas_device_pg0(ioc,
2146 &port_info->phy_info[i].attached,
2147 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
2148 MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
2149 port_info->phy_info[i].attached.handle);
2150 }
2151
2152 mptsas_setup_wide_ports(ioc, port_info);
2153
2154 for (i = 0; i < port_info->num_phys; i++, ioc->sas_index++)
2155 mptsas_probe_one_phy(&ioc->sh->shost_gendev,
2156 &port_info->phy_info[i], ioc->sas_index, 1);
2157
2158 return 0;
2159
2160 out_free_port_info:
2161 kfree(hba);
2162 out:
2163 return error;
2164 }
2165
2166 static int
2167 mptsas_probe_expander_phys(MPT_ADAPTER *ioc, u32 *handle)
2168 {
2169 struct mptsas_portinfo *port_info, *p, *ex;
2170 struct device *parent;
2171 struct sas_rphy *rphy;
2172 int error = -ENOMEM, i, j;
2173
2174 ex = kzalloc(sizeof(*port_info), GFP_KERNEL);
2175 if (!ex)
2176 goto out;
2177
2178 error = mptsas_sas_expander_pg0(ioc, ex,
2179 (MPI_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE <<
2180 MPI_SAS_EXPAND_PGAD_FORM_SHIFT), *handle);
2181 if (error)
2182 goto out_free_port_info;
2183
2184 *handle = ex->phy_info[0].handle;
2185
2186 mutex_lock(&ioc->sas_topology_mutex);
2187 port_info = mptsas_find_portinfo_by_handle(ioc, *handle);
2188 if (!port_info) {
2189 port_info = ex;
2190 list_add_tail(&port_info->list, &ioc->sas_topology);
2191 } else {
2192 for (i = 0; i < ex->num_phys; i++) {
2193 port_info->phy_info[i].handle =
2194 ex->phy_info[i].handle;
2195 port_info->phy_info[i].port_id =
2196 ex->phy_info[i].port_id;
2197 }
2198 kfree(ex->phy_info);
2199 kfree(ex);
2200 ex = NULL;
2201 }
2202 mutex_unlock(&ioc->sas_topology_mutex);
2203
2204 for (i = 0; i < port_info->num_phys; i++) {
2205 mptsas_sas_expander_pg1(ioc, &port_info->phy_info[i],
2206 (MPI_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM <<
2207 MPI_SAS_EXPAND_PGAD_FORM_SHIFT), (i << 16) + *handle);
2208
2209 if (port_info->phy_info[i].identify.handle) {
2210 mptsas_sas_device_pg0(ioc,
2211 &port_info->phy_info[i].identify,
2212 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
2213 MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
2214 port_info->phy_info[i].identify.handle);
2215 port_info->phy_info[i].identify.phy_id =
2216 port_info->phy_info[i].phy_id;
2217 }
2218
2219 if (port_info->phy_info[i].attached.handle) {
2220 mptsas_sas_device_pg0(ioc,
2221 &port_info->phy_info[i].attached,
2222 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
2223 MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
2224 port_info->phy_info[i].attached.handle);
2225 port_info->phy_info[i].attached.phy_id =
2226 port_info->phy_info[i].phy_id;
2227 }
2228 }
2229
2230 parent = &ioc->sh->shost_gendev;
2231 for (i = 0; i < port_info->num_phys; i++) {
2232 mutex_lock(&ioc->sas_topology_mutex);
2233 list_for_each_entry(p, &ioc->sas_topology, list) {
2234 for (j = 0; j < p->num_phys; j++) {
2235 if (port_info->phy_info[i].identify.handle !=
2236 p->phy_info[j].attached.handle)
2237 continue;
2238 rphy = mptsas_get_rphy(&p->phy_info[j]);
2239 parent = &rphy->dev;
2240 }
2241 }
2242 mutex_unlock(&ioc->sas_topology_mutex);
2243 }
2244
2245 mptsas_setup_wide_ports(ioc, port_info);
2246
2247 for (i = 0; i < port_info->num_phys; i++, ioc->sas_index++)
2248 mptsas_probe_one_phy(parent, &port_info->phy_info[i],
2249 ioc->sas_index, 0);
2250
2251 return 0;
2252
2253 out_free_port_info:
2254 if (ex) {
2255 kfree(ex->phy_info);
2256 kfree(ex);
2257 }
2258 out:
2259 return error;
2260 }
2261
2262 /*
2263 * mptsas_delete_expander_phys
2264 *
2265 *
2266 * This will traverse topology, and remove expanders
2267 * that are no longer present
2268 */
2269 static void
2270 mptsas_delete_expander_phys(MPT_ADAPTER *ioc)
2271 {
2272 struct mptsas_portinfo buffer;
2273 struct mptsas_portinfo *port_info, *n, *parent;
2274 struct mptsas_phyinfo *phy_info;
2275 struct sas_port * port;
2276 int i;
2277 u64 expander_sas_address;
2278
2279 mutex_lock(&ioc->sas_topology_mutex);
2280 list_for_each_entry_safe(port_info, n, &ioc->sas_topology, list) {
2281
2282 if (port_info->phy_info &&
2283 (!(port_info->phy_info[0].identify.device_info &
2284 MPI_SAS_DEVICE_INFO_SMP_TARGET)))
2285 continue;
2286
2287 if (mptsas_sas_expander_pg0(ioc, &buffer,
2288 (MPI_SAS_EXPAND_PGAD_FORM_HANDLE <<
2289 MPI_SAS_EXPAND_PGAD_FORM_SHIFT),
2290 port_info->phy_info[0].handle)) {
2291
2292 /*
2293 * Obtain the port_info instance to the parent port
2294 */
2295 parent = mptsas_find_portinfo_by_handle(ioc,
2296 port_info->phy_info[0].identify.handle_parent);
2297
2298 if (!parent)
2299 goto next_port;
2300
2301 expander_sas_address =
2302 port_info->phy_info[0].identify.sas_address;
2303
2304 /*
2305 * Delete rphys in the parent that point
2306 * to this expander. The transport layer will
2307 * cleanup all the children.
2308 */
2309 phy_info = parent->phy_info;
2310 for (i = 0; i < parent->num_phys; i++, phy_info++) {
2311 port = mptsas_get_port(phy_info);
2312 if (!port)
2313 continue;
2314 if (phy_info->attached.sas_address !=
2315 expander_sas_address)
2316 continue;
2317 dsaswideprintk(ioc,
2318 dev_printk(KERN_DEBUG, &port->dev,
2319 MYIOC_s_FMT "delete port (%d)\n", ioc->name,
2320 port->port_identifier));
2321 sas_port_delete(port);
2322 mptsas_port_delete(ioc, phy_info->port_details);
2323 }
2324 next_port:
2325
2326 phy_info = port_info->phy_info;
2327 for (i = 0; i < port_info->num_phys; i++, phy_info++)
2328 mptsas_port_delete(ioc, phy_info->port_details);
2329
2330 list_del(&port_info->list);
2331 kfree(port_info->phy_info);
2332 kfree(port_info);
2333 }
2334 /*
2335 * Free this memory allocated from inside
2336 * mptsas_sas_expander_pg0
2337 */
2338 kfree(buffer.phy_info);
2339 }
2340 mutex_unlock(&ioc->sas_topology_mutex);
2341 }
2342
2343 /*
2344 * Start of day discovery
2345 */
2346 static void
2347 mptsas_scan_sas_topology(MPT_ADAPTER *ioc)
2348 {
2349 u32 handle = 0xFFFF;
2350 int i;
2351
2352 mutex_lock(&ioc->sas_discovery_mutex);
2353 mptsas_probe_hba_phys(ioc);
2354 while (!mptsas_probe_expander_phys(ioc, &handle))
2355 ;
2356 /*
2357 Reporting RAID volumes.
2358 */
2359 if (!ioc->ir_firmware)
2360 goto out;
2361 if (!ioc->raid_data.pIocPg2)
2362 goto out;
2363 if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
2364 goto out;
2365 for (i = 0; i < ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
2366 scsi_add_device(ioc->sh, MPTSAS_RAID_CHANNEL,
2367 ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID, 0);
2368 }
2369 out:
2370 mutex_unlock(&ioc->sas_discovery_mutex);
2371 }
2372
2373 /*
2374 * Work queue thread to handle Runtime discovery
2375 * Mere purpose is the hot add/delete of expanders
2376 *(Mutex UNLOCKED)
2377 */
2378 static void
2379 __mptsas_discovery_work(MPT_ADAPTER *ioc)
2380 {
2381 u32 handle = 0xFFFF;
2382
2383 ioc->sas_discovery_runtime=1;
2384 mptsas_delete_expander_phys(ioc);
2385 mptsas_probe_hba_phys(ioc);
2386 while (!mptsas_probe_expander_phys(ioc, &handle))
2387 ;
2388 ioc->sas_discovery_runtime=0;
2389 }
2390
2391 /*
2392 * Work queue thread to handle Runtime discovery
2393 * Mere purpose is the hot add/delete of expanders
2394 *(Mutex LOCKED)
2395 */
2396 static void
2397 mptsas_discovery_work(struct work_struct *work)
2398 {
2399 struct mptsas_discovery_event *ev =
2400 container_of(work, struct mptsas_discovery_event, work);
2401 MPT_ADAPTER *ioc = ev->ioc;
2402
2403 mutex_lock(&ioc->sas_discovery_mutex);
2404 __mptsas_discovery_work(ioc);
2405 mutex_unlock(&ioc->sas_discovery_mutex);
2406 kfree(ev);
2407 }
2408
2409 static struct mptsas_phyinfo *
2410 mptsas_find_phyinfo_by_sas_address(MPT_ADAPTER *ioc, u64 sas_address)
2411 {
2412 struct mptsas_portinfo *port_info;
2413 struct mptsas_phyinfo *phy_info = NULL;
2414 int i;
2415
2416 mutex_lock(&ioc->sas_topology_mutex);
2417 list_for_each_entry(port_info, &ioc->sas_topology, list) {
2418 for (i = 0; i < port_info->num_phys; i++) {
2419 if (!mptsas_is_end_device(
2420 &port_info->phy_info[i].attached))
2421 continue;
2422 if (port_info->phy_info[i].attached.sas_address
2423 != sas_address)
2424 continue;
2425 phy_info = &port_info->phy_info[i];
2426 break;
2427 }
2428 }
2429 mutex_unlock(&ioc->sas_topology_mutex);
2430 return phy_info;
2431 }
2432
2433 static struct mptsas_phyinfo *
2434 mptsas_find_phyinfo_by_target(MPT_ADAPTER *ioc, u8 channel, u8 id)
2435 {
2436 struct mptsas_portinfo *port_info;
2437 struct mptsas_phyinfo *phy_info = NULL;
2438 int i;
2439
2440 mutex_lock(&ioc->sas_topology_mutex);
2441 list_for_each_entry(port_info, &ioc->sas_topology, list) {
2442 for (i = 0; i < port_info->num_phys; i++) {
2443 if (!mptsas_is_end_device(
2444 &port_info->phy_info[i].attached))
2445 continue;
2446 if (port_info->phy_info[i].attached.id != id)
2447 continue;
2448 if (port_info->phy_info[i].attached.channel != channel)
2449 continue;
2450 phy_info = &port_info->phy_info[i];
2451 break;
2452 }
2453 }
2454 mutex_unlock(&ioc->sas_topology_mutex);
2455 return phy_info;
2456 }
2457
2458 static struct mptsas_phyinfo *
2459 mptsas_find_phyinfo_by_phys_disk_num(MPT_ADAPTER *ioc, u8 channel, u8 id)
2460 {
2461 struct mptsas_portinfo *port_info;
2462 struct mptsas_phyinfo *phy_info = NULL;
2463 int i;
2464
2465 mutex_lock(&ioc->sas_topology_mutex);
2466 list_for_each_entry(port_info, &ioc->sas_topology, list) {
2467 for (i = 0; i < port_info->num_phys; i++) {
2468 if (!mptsas_is_end_device(
2469 &port_info->phy_info[i].attached))
2470 continue;
2471 if (port_info->phy_info[i].attached.phys_disk_num == ~0)
2472 continue;
2473 if (port_info->phy_info[i].attached.phys_disk_num != id)
2474 continue;
2475 if (port_info->phy_info[i].attached.channel != channel)
2476 continue;
2477 phy_info = &port_info->phy_info[i];
2478 break;
2479 }
2480 }
2481 mutex_unlock(&ioc->sas_topology_mutex);
2482 return phy_info;
2483 }
2484
2485 /*
2486 * Work queue thread to clear the persitency table
2487 */
2488 static void
2489 mptsas_persist_clear_table(struct work_struct *work)
2490 {
2491 MPT_ADAPTER *ioc = container_of(work, MPT_ADAPTER, sas_persist_task);
2492
2493 mptbase_sas_persist_operation(ioc, MPI_SAS_OP_CLEAR_NOT_PRESENT);
2494 }
2495
2496 static void
2497 mptsas_reprobe_lun(struct scsi_device *sdev, void *data)
2498 {
2499 int rc;
2500
2501 sdev->no_uld_attach = data ? 1 : 0;
2502 rc = scsi_device_reprobe(sdev);
2503 }
2504
2505 static void
2506 mptsas_reprobe_target(struct scsi_target *starget, int uld_attach)
2507 {
2508 starget_for_each_device(starget, uld_attach ? (void *)1 : NULL,
2509 mptsas_reprobe_lun);
2510 }
2511
2512 static void
2513 mptsas_adding_inactive_raid_components(MPT_ADAPTER *ioc, u8 channel, u8 id)
2514 {
2515 CONFIGPARMS cfg;
2516 ConfigPageHeader_t hdr;
2517 dma_addr_t dma_handle;
2518 pRaidVolumePage0_t buffer = NULL;
2519 RaidPhysDiskPage0_t phys_disk;
2520 int i;
2521 struct mptsas_hotplug_event *ev;
2522
2523 memset(&cfg, 0 , sizeof(CONFIGPARMS));
2524 memset(&hdr, 0 , sizeof(ConfigPageHeader_t));
2525 hdr.PageType = MPI_CONFIG_PAGETYPE_RAID_VOLUME;
2526 cfg.pageAddr = (channel << 8) + id;
2527 cfg.cfghdr.hdr = &hdr;
2528 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
2529
2530 if (mpt_config(ioc, &cfg) != 0)
2531 goto out;
2532
2533 if (!hdr.PageLength)
2534 goto out;
2535
2536 buffer = pci_alloc_consistent(ioc->pcidev, hdr.PageLength * 4,
2537 &dma_handle);
2538
2539 if (!buffer)
2540 goto out;
2541
2542 cfg.physAddr = dma_handle;
2543 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
2544
2545 if (mpt_config(ioc, &cfg) != 0)
2546 goto out;
2547
2548 if (!(buffer->VolumeStatus.Flags &
2549 MPI_RAIDVOL0_STATUS_FLAG_VOLUME_INACTIVE))
2550 goto out;
2551
2552 if (!buffer->NumPhysDisks)
2553 goto out;
2554
2555 for (i = 0; i < buffer->NumPhysDisks; i++) {
2556
2557 if (mpt_raid_phys_disk_pg0(ioc,
2558 buffer->PhysDisk[i].PhysDiskNum, &phys_disk) != 0)
2559 continue;
2560
2561 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2562 if (!ev) {
2563 printk(MYIOC_s_WARN_FMT "mptsas: lost hotplug event\n", ioc->name);
2564 goto out;
2565 }
2566
2567 INIT_WORK(&ev->work, mptsas_hotplug_work);
2568 ev->ioc = ioc;
2569 ev->id = phys_disk.PhysDiskID;
2570 ev->channel = phys_disk.PhysDiskBus;
2571 ev->phys_disk_num_valid = 1;
2572 ev->phys_disk_num = phys_disk.PhysDiskNum;
2573 ev->event_type = MPTSAS_ADD_DEVICE;
2574 schedule_work(&ev->work);
2575 }
2576
2577 out:
2578 if (buffer)
2579 pci_free_consistent(ioc->pcidev, hdr.PageLength * 4, buffer,
2580 dma_handle);
2581 }
2582 /*
2583 * Work queue thread to handle SAS hotplug events
2584 */
2585 static void
2586 mptsas_hotplug_work(struct work_struct *work)
2587 {
2588 struct mptsas_hotplug_event *ev =
2589 container_of(work, struct mptsas_hotplug_event, work);
2590
2591 MPT_ADAPTER *ioc = ev->ioc;
2592 struct mptsas_phyinfo *phy_info;
2593 struct sas_rphy *rphy;
2594 struct sas_port *port;
2595 struct scsi_device *sdev;
2596 struct scsi_target * starget;
2597 struct sas_identify identify;
2598 char *ds = NULL;
2599 struct mptsas_devinfo sas_device;
2600 VirtTarget *vtarget;
2601 VirtDevice *vdevice;
2602
2603 mutex_lock(&ioc->sas_discovery_mutex);
2604 switch (ev->event_type) {
2605 case MPTSAS_DEL_DEVICE:
2606
2607 phy_info = NULL;
2608 if (ev->phys_disk_num_valid) {
2609 if (ev->hidden_raid_component){
2610 if (mptsas_sas_device_pg0(ioc, &sas_device,
2611 (MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID <<
2612 MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
2613 (ev->channel << 8) + ev->id)) {
2614 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2615 "%s: exit at line=%d\n", ioc->name,
2616 __FUNCTION__, __LINE__));
2617 break;
2618 }
2619 phy_info = mptsas_find_phyinfo_by_sas_address(
2620 ioc, sas_device.sas_address);
2621 }else
2622 phy_info = mptsas_find_phyinfo_by_phys_disk_num(
2623 ioc, ev->channel, ev->phys_disk_num);
2624 }
2625
2626 if (!phy_info)
2627 phy_info = mptsas_find_phyinfo_by_target(ioc,
2628 ev->channel, ev->id);
2629
2630 /*
2631 * Sanity checks, for non-existing phys and remote rphys.
2632 */
2633 if (!phy_info){
2634 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2635 "%s: exit at line=%d\n", ioc->name,
2636 __FUNCTION__, __LINE__));
2637 break;
2638 }
2639 if (!phy_info->port_details) {
2640 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2641 "%s: exit at line=%d\n", ioc->name,
2642 __FUNCTION__, __LINE__));
2643 break;
2644 }
2645 rphy = mptsas_get_rphy(phy_info);
2646 if (!rphy) {
2647 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2648 "%s: exit at line=%d\n", ioc->name,
2649 __FUNCTION__, __LINE__));
2650 break;
2651 }
2652
2653 port = mptsas_get_port(phy_info);
2654 if (!port) {
2655 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2656 "%s: exit at line=%d\n", ioc->name,
2657 __FUNCTION__, __LINE__));
2658 break;
2659 }
2660
2661 starget = mptsas_get_starget(phy_info);
2662 if (starget) {
2663 vtarget = starget->hostdata;
2664
2665 if (!vtarget) {
2666 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2667 "%s: exit at line=%d\n", ioc->name,
2668 __FUNCTION__, __LINE__));
2669 break;
2670 }
2671
2672 /*
2673 * Handling RAID components
2674 */
2675 if (ev->phys_disk_num_valid &&
2676 ev->hidden_raid_component) {
2677 printk(MYIOC_s_INFO_FMT
2678 "RAID Hidding: channel=%d, id=%d, "
2679 "physdsk %d \n", ioc->name, ev->channel,
2680 ev->id, ev->phys_disk_num);
2681 vtarget->id = ev->phys_disk_num;
2682 vtarget->tflags |=
2683 MPT_TARGET_FLAGS_RAID_COMPONENT;
2684 mptsas_reprobe_target(starget, 1);
2685 phy_info->attached.phys_disk_num =
2686 ev->phys_disk_num;
2687 break;
2688 }
2689 }
2690
2691 if (phy_info->attached.device_info &
2692 MPI_SAS_DEVICE_INFO_SSP_TARGET)
2693 ds = "ssp";
2694 if (phy_info->attached.device_info &
2695 MPI_SAS_DEVICE_INFO_STP_TARGET)
2696 ds = "stp";
2697 if (phy_info->attached.device_info &
2698 MPI_SAS_DEVICE_INFO_SATA_DEVICE)
2699 ds = "sata";
2700
2701 printk(MYIOC_s_INFO_FMT
2702 "removing %s device, channel %d, id %d, phy %d\n",
2703 ioc->name, ds, ev->channel, ev->id, phy_info->phy_id);
2704 dev_printk(KERN_DEBUG, &port->dev, MYIOC_s_FMT
2705 "delete port (%d)\n", ioc->name, port->port_identifier);
2706 sas_port_delete(port);
2707 mptsas_port_delete(ioc, phy_info->port_details);
2708 break;
2709 case MPTSAS_ADD_DEVICE:
2710
2711 if (ev->phys_disk_num_valid)
2712 mpt_findImVolumes(ioc);
2713
2714 /*
2715 * Refresh sas device pg0 data
2716 */
2717 if (mptsas_sas_device_pg0(ioc, &sas_device,
2718 (MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID <<
2719 MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
2720 (ev->channel << 8) + ev->id)) {
2721 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2722 "%s: exit at line=%d\n", ioc->name,
2723 __FUNCTION__, __LINE__));
2724 break;
2725 }
2726
2727 __mptsas_discovery_work(ioc);
2728
2729 phy_info = mptsas_find_phyinfo_by_sas_address(ioc,
2730 sas_device.sas_address);
2731
2732 if (!phy_info || !phy_info->port_details) {
2733 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2734 "%s: exit at line=%d\n", ioc->name,
2735 __FUNCTION__, __LINE__));
2736 break;
2737 }
2738
2739 starget = mptsas_get_starget(phy_info);
2740 if (starget && (!ev->hidden_raid_component)){
2741
2742 vtarget = starget->hostdata;
2743
2744 if (!vtarget) {
2745 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2746 "%s: exit at line=%d\n", ioc->name,
2747 __FUNCTION__, __LINE__));
2748 break;
2749 }
2750 /*
2751 * Handling RAID components
2752 */
2753 if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
2754 printk(MYIOC_s_INFO_FMT
2755 "RAID Exposing: channel=%d, id=%d, "
2756 "physdsk %d \n", ioc->name, ev->channel,
2757 ev->id, ev->phys_disk_num);
2758 vtarget->tflags &=
2759 ~MPT_TARGET_FLAGS_RAID_COMPONENT;
2760 vtarget->id = ev->id;
2761 mptsas_reprobe_target(starget, 0);
2762 phy_info->attached.phys_disk_num = ~0;
2763 }
2764 break;
2765 }
2766
2767 if (mptsas_get_rphy(phy_info)) {
2768 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2769 "%s: exit at line=%d\n", ioc->name,
2770 __FUNCTION__, __LINE__));
2771 if (ev->channel) printk("%d\n", __LINE__);
2772 break;
2773 }
2774
2775 port = mptsas_get_port(phy_info);
2776 if (!port) {
2777 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2778 "%s: exit at line=%d\n", ioc->name,
2779 __FUNCTION__, __LINE__));
2780 break;
2781 }
2782 memcpy(&phy_info->attached, &sas_device,
2783 sizeof(struct mptsas_devinfo));
2784
2785 if (phy_info->attached.device_info &
2786 MPI_SAS_DEVICE_INFO_SSP_TARGET)
2787 ds = "ssp";
2788 if (phy_info->attached.device_info &
2789 MPI_SAS_DEVICE_INFO_STP_TARGET)
2790 ds = "stp";
2791 if (phy_info->attached.device_info &
2792 MPI_SAS_DEVICE_INFO_SATA_DEVICE)
2793 ds = "sata";
2794
2795 printk(MYIOC_s_INFO_FMT
2796 "attaching %s device, channel %d, id %d, phy %d\n",
2797 ioc->name, ds, ev->channel, ev->id, ev->phy_id);
2798
2799 mptsas_parse_device_info(&identify, &phy_info->attached);
2800 rphy = sas_end_device_alloc(port);
2801 if (!rphy) {
2802 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2803 "%s: exit at line=%d\n", ioc->name,
2804 __FUNCTION__, __LINE__));
2805 break; /* non-fatal: an rphy can be added later */
2806 }
2807
2808 rphy->identify = identify;
2809 if (sas_rphy_add(rphy)) {
2810 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
2811 "%s: exit at line=%d\n", ioc->name,
2812 __FUNCTION__, __LINE__));
2813 sas_rphy_free(rphy);
2814 break;
2815 }
2816 mptsas_set_rphy(ioc, phy_info, rphy);
2817 break;
2818 case MPTSAS_ADD_RAID:
2819 sdev = scsi_device_lookup(ioc->sh, MPTSAS_RAID_CHANNEL,
2820 ev->id, 0);
2821 if (sdev) {
2822 scsi_device_put(sdev);
2823 break;
2824 }
2825 printk(MYIOC_s_INFO_FMT
2826 "attaching raid volume, channel %d, id %d\n",
2827 ioc->name, MPTSAS_RAID_CHANNEL, ev->id);
2828 scsi_add_device(ioc->sh, MPTSAS_RAID_CHANNEL, ev->id, 0);
2829 mpt_findImVolumes(ioc);
2830 break;
2831 case MPTSAS_DEL_RAID:
2832 sdev = scsi_device_lookup(ioc->sh, MPTSAS_RAID_CHANNEL,
2833 ev->id, 0);
2834 if (!sdev)
2835 break;
2836 printk(MYIOC_s_INFO_FMT
2837 "removing raid volume, channel %d, id %d\n",
2838 ioc->name, MPTSAS_RAID_CHANNEL, ev->id);
2839 vdevice = sdev->hostdata;
2840 scsi_remove_device(sdev);
2841 scsi_device_put(sdev);
2842 mpt_findImVolumes(ioc);
2843 break;
2844 case MPTSAS_ADD_INACTIVE_VOLUME:
2845 mptsas_adding_inactive_raid_components(ioc,
2846 ev->channel, ev->id);
2847 break;
2848 case MPTSAS_IGNORE_EVENT:
2849 default:
2850 break;
2851 }
2852
2853 mutex_unlock(&ioc->sas_discovery_mutex);
2854 kfree(ev);
2855 }
2856
2857 static void
2858 mptsas_send_sas_event(MPT_ADAPTER *ioc,
2859 EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data)
2860 {
2861 struct mptsas_hotplug_event *ev;
2862 u32 device_info = le32_to_cpu(sas_event_data->DeviceInfo);
2863 __le64 sas_address;
2864
2865 if ((device_info &
2866 (MPI_SAS_DEVICE_INFO_SSP_TARGET |
2867 MPI_SAS_DEVICE_INFO_STP_TARGET |
2868 MPI_SAS_DEVICE_INFO_SATA_DEVICE )) == 0)
2869 return;
2870
2871 switch (sas_event_data->ReasonCode) {
2872 case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING:
2873
2874 mptsas_target_reset_queue(ioc, sas_event_data);
2875 break;
2876
2877 case MPI_EVENT_SAS_DEV_STAT_RC_ADDED:
2878 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2879 if (!ev) {
2880 printk(MYIOC_s_WARN_FMT "lost hotplug event\n", ioc->name);
2881 break;
2882 }
2883
2884 INIT_WORK(&ev->work, mptsas_hotplug_work);
2885 ev->ioc = ioc;
2886 ev->handle = le16_to_cpu(sas_event_data->DevHandle);
2887 ev->parent_handle =
2888 le16_to_cpu(sas_event_data->ParentDevHandle);
2889 ev->channel = sas_event_data->Bus;
2890 ev->id = sas_event_data->TargetID;
2891 ev->phy_id = sas_event_data->PhyNum;
2892 memcpy(&sas_address, &sas_event_data->SASAddress,
2893 sizeof(__le64));
2894 ev->sas_address = le64_to_cpu(sas_address);
2895 ev->device_info = device_info;
2896
2897 if (sas_event_data->ReasonCode &
2898 MPI_EVENT_SAS_DEV_STAT_RC_ADDED)
2899 ev->event_type = MPTSAS_ADD_DEVICE;
2900 else
2901 ev->event_type = MPTSAS_DEL_DEVICE;
2902 schedule_work(&ev->work);
2903 break;
2904 case MPI_EVENT_SAS_DEV_STAT_RC_NO_PERSIST_ADDED:
2905 /*
2906 * Persistent table is full.
2907 */
2908 INIT_WORK(&ioc->sas_persist_task,
2909 mptsas_persist_clear_table);
2910 schedule_work(&ioc->sas_persist_task);
2911 break;
2912 /*
2913 * TODO, handle other events
2914 */
2915 case MPI_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
2916 case MPI_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
2917 case MPI_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
2918 case MPI_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
2919 case MPI_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
2920 case MPI_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
2921 case MPI_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
2922 default:
2923 break;
2924 }
2925 }
2926 static void
2927 mptsas_send_raid_event(MPT_ADAPTER *ioc,
2928 EVENT_DATA_RAID *raid_event_data)
2929 {
2930 struct mptsas_hotplug_event *ev;
2931 int status = le32_to_cpu(raid_event_data->SettingsStatus);
2932 int state = (status >> 8) & 0xff;
2933
2934 if (ioc->bus_type != SAS)
2935 return;
2936
2937 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
2938 if (!ev) {
2939 printk(MYIOC_s_WARN_FMT "lost hotplug event\n", ioc->name);
2940 return;
2941 }
2942
2943 INIT_WORK(&ev->work, mptsas_hotplug_work);
2944 ev->ioc = ioc;
2945 ev->id = raid_event_data->VolumeID;
2946 ev->channel = raid_event_data->VolumeBus;
2947 ev->event_type = MPTSAS_IGNORE_EVENT;
2948
2949 switch (raid_event_data->ReasonCode) {
2950 case MPI_EVENT_RAID_RC_PHYSDISK_DELETED:
2951 ev->phys_disk_num_valid = 1;
2952 ev->phys_disk_num = raid_event_data->PhysDiskNum;
2953 ev->event_type = MPTSAS_ADD_DEVICE;
2954 break;
2955 case MPI_EVENT_RAID_RC_PHYSDISK_CREATED:
2956 ev->phys_disk_num_valid = 1;
2957 ev->phys_disk_num = raid_event_data->PhysDiskNum;
2958 ev->hidden_raid_component = 1;
2959 ev->event_type = MPTSAS_DEL_DEVICE;
2960 break;
2961 case MPI_EVENT_RAID_RC_PHYSDISK_STATUS_CHANGED:
2962 switch (state) {
2963 case MPI_PD_STATE_ONLINE:
2964 case MPI_PD_STATE_NOT_COMPATIBLE:
2965 ev->phys_disk_num_valid = 1;
2966 ev->phys_disk_num = raid_event_data->PhysDiskNum;
2967 ev->hidden_raid_component = 1;
2968 ev->event_type = MPTSAS_ADD_DEVICE;
2969 break;
2970 case MPI_PD_STATE_MISSING:
2971 case MPI_PD_STATE_OFFLINE_AT_HOST_REQUEST:
2972 case MPI_PD_STATE_FAILED_AT_HOST_REQUEST:
2973 case MPI_PD_STATE_OFFLINE_FOR_ANOTHER_REASON:
2974 ev->phys_disk_num_valid = 1;
2975 ev->phys_disk_num = raid_event_data->PhysDiskNum;
2976 ev->event_type = MPTSAS_DEL_DEVICE;
2977 break;
2978 default:
2979 break;
2980 }
2981 break;
2982 case MPI_EVENT_RAID_RC_VOLUME_DELETED:
2983 ev->event_type = MPTSAS_DEL_RAID;
2984 break;
2985 case MPI_EVENT_RAID_RC_VOLUME_CREATED:
2986 ev->event_type = MPTSAS_ADD_RAID;
2987 break;
2988 case MPI_EVENT_RAID_RC_VOLUME_STATUS_CHANGED:
2989 switch (state) {
2990 case MPI_RAIDVOL0_STATUS_STATE_FAILED:
2991 case MPI_RAIDVOL0_STATUS_STATE_MISSING:
2992 ev->event_type = MPTSAS_DEL_RAID;
2993 break;
2994 case MPI_RAIDVOL0_STATUS_STATE_OPTIMAL:
2995 case MPI_RAIDVOL0_STATUS_STATE_DEGRADED:
2996 ev->event_type = MPTSAS_ADD_RAID;
2997 break;
2998 default:
2999 break;
3000 }
3001 break;
3002 default:
3003 break;
3004 }
3005 schedule_work(&ev->work);
3006 }
3007
3008 static void
3009 mptsas_send_discovery_event(MPT_ADAPTER *ioc,
3010 EVENT_DATA_SAS_DISCOVERY *discovery_data)
3011 {
3012 struct mptsas_discovery_event *ev;
3013
3014 /*
3015 * DiscoveryStatus
3016 *
3017 * This flag will be non-zero when firmware
3018 * kicks off discovery, and return to zero
3019 * once its completed.
3020 */
3021 if (discovery_data->DiscoveryStatus)
3022 return;
3023
3024 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
3025 if (!ev)
3026 return;
3027 INIT_WORK(&ev->work, mptsas_discovery_work);
3028 ev->ioc = ioc;
3029 schedule_work(&ev->work);
3030 };
3031
3032 /*
3033 * mptsas_send_ir2_event - handle exposing hidden disk when
3034 * an inactive raid volume is added
3035 *
3036 * @ioc: Pointer to MPT_ADAPTER structure
3037 * @ir2_data
3038 *
3039 */
3040 static void
3041 mptsas_send_ir2_event(MPT_ADAPTER *ioc, PTR_MPI_EVENT_DATA_IR2 ir2_data)
3042 {
3043 struct mptsas_hotplug_event *ev;
3044
3045 if (ir2_data->ReasonCode !=
3046 MPI_EVENT_IR2_RC_FOREIGN_CFG_DETECTED)
3047 return;
3048
3049 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);
3050 if (!ev)
3051 return;
3052
3053 INIT_WORK(&ev->work, mptsas_hotplug_work);
3054 ev->ioc = ioc;
3055 ev->id = ir2_data->TargetID;
3056 ev->channel = ir2_data->Bus;
3057 ev->event_type = MPTSAS_ADD_INACTIVE_VOLUME;
3058
3059 schedule_work(&ev->work);
3060 };
3061
3062 static int
3063 mptsas_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *reply)
3064 {
3065 int rc=1;
3066 u8 event = le32_to_cpu(reply->Event) & 0xFF;
3067
3068 if (!ioc->sh)
3069 goto out;
3070
3071 /*
3072 * sas_discovery_ignore_events
3073 *
3074 * This flag is to prevent anymore processing of
3075 * sas events once mptsas_remove function is called.
3076 */
3077 if (ioc->sas_discovery_ignore_events) {
3078 rc = mptscsih_event_process(ioc, reply);
3079 goto out;
3080 }
3081
3082 switch (event) {
3083 case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
3084 mptsas_send_sas_event(ioc,
3085 (EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *)reply->Data);
3086 break;
3087 case MPI_EVENT_INTEGRATED_RAID:
3088 mptsas_send_raid_event(ioc,
3089 (EVENT_DATA_RAID *)reply->Data);
3090 break;
3091 case MPI_EVENT_PERSISTENT_TABLE_FULL:
3092 INIT_WORK(&ioc->sas_persist_task,
3093 mptsas_persist_clear_table);
3094 schedule_work(&ioc->sas_persist_task);
3095 break;
3096 case MPI_EVENT_SAS_DISCOVERY:
3097 mptsas_send_discovery_event(ioc,
3098 (EVENT_DATA_SAS_DISCOVERY *)reply->Data);
3099 break;
3100 case MPI_EVENT_IR2:
3101 mptsas_send_ir2_event(ioc,
3102 (PTR_MPI_EVENT_DATA_IR2)reply->Data);
3103 break;
3104 default:
3105 rc = mptscsih_event_process(ioc, reply);
3106 break;
3107 }
3108 out:
3109
3110 return rc;
3111 }
3112
3113 static int
3114 mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
3115 {
3116 struct Scsi_Host *sh;
3117 MPT_SCSI_HOST *hd;
3118 MPT_ADAPTER *ioc;
3119 unsigned long flags;
3120 int ii;
3121 int numSGE = 0;
3122 int scale;
3123 int ioc_cap;
3124 int error=0;
3125 int r;
3126
3127 r = mpt_attach(pdev,id);
3128 if (r)
3129 return r;
3130
3131 ioc = pci_get_drvdata(pdev);
3132 ioc->DoneCtx = mptsasDoneCtx;
3133 ioc->TaskCtx = mptsasTaskCtx;
3134 ioc->InternalCtx = mptsasInternalCtx;
3135
3136 /* Added sanity check on readiness of the MPT adapter.
3137 */
3138 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
3139 printk(MYIOC_s_WARN_FMT
3140 "Skipping because it's not operational!\n",
3141 ioc->name);
3142 error = -ENODEV;
3143 goto out_mptsas_probe;
3144 }
3145
3146 if (!ioc->active) {
3147 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
3148 ioc->name);
3149 error = -ENODEV;
3150 goto out_mptsas_probe;
3151 }
3152
3153 /* Sanity check - ensure at least 1 port is INITIATOR capable
3154 */
3155 ioc_cap = 0;
3156 for (ii = 0; ii < ioc->facts.NumberOfPorts; ii++) {
3157 if (ioc->pfacts[ii].ProtocolFlags &
3158 MPI_PORTFACTS_PROTOCOL_INITIATOR)
3159 ioc_cap++;
3160 }
3161
3162 if (!ioc_cap) {
3163 printk(MYIOC_s_WARN_FMT
3164 "Skipping ioc=%p because SCSI Initiator mode "
3165 "is NOT enabled!\n", ioc->name, ioc);
3166 return 0;
3167 }
3168
3169 sh = scsi_host_alloc(&mptsas_driver_template, sizeof(MPT_SCSI_HOST));
3170 if (!sh) {
3171 printk(MYIOC_s_WARN_FMT
3172 "Unable to register controller with SCSI subsystem\n",
3173 ioc->name);
3174 error = -1;
3175 goto out_mptsas_probe;
3176 }
3177
3178 spin_lock_irqsave(&ioc->FreeQlock, flags);
3179
3180 /* Attach the SCSI Host to the IOC structure
3181 */
3182 ioc->sh = sh;
3183
3184 sh->io_port = 0;
3185 sh->n_io_port = 0;
3186 sh->irq = 0;
3187
3188 /* set 16 byte cdb's */
3189 sh->max_cmd_len = 16;
3190
3191 sh->max_id = ioc->pfacts[0].PortSCSIID;
3192 sh->max_lun = max_lun;
3193
3194 sh->transportt = mptsas_transport_template;
3195
3196 /* Required entry.
3197 */
3198 sh->unique_id = ioc->id;
3199
3200 INIT_LIST_HEAD(&ioc->sas_topology);
3201 mutex_init(&ioc->sas_topology_mutex);
3202 mutex_init(&ioc->sas_discovery_mutex);
3203 mutex_init(&ioc->sas_mgmt.mutex);
3204 init_completion(&ioc->sas_mgmt.done);
3205
3206 /* Verify that we won't exceed the maximum
3207 * number of chain buffers
3208 * We can optimize: ZZ = req_sz/sizeof(SGE)
3209 * For 32bit SGE's:
3210 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
3211 * + (req_sz - 64)/sizeof(SGE)
3212 * A slightly different algorithm is required for
3213 * 64bit SGEs.
3214 */
3215 scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
3216 if (sizeof(dma_addr_t) == sizeof(u64)) {
3217 numSGE = (scale - 1) *
3218 (ioc->facts.MaxChainDepth-1) + scale +
3219 (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
3220 sizeof(u32));
3221 } else {
3222 numSGE = 1 + (scale - 1) *
3223 (ioc->facts.MaxChainDepth-1) + scale +
3224 (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
3225 sizeof(u32));
3226 }
3227
3228 if (numSGE < sh->sg_tablesize) {
3229 /* Reset this value */
3230 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT
3231 "Resetting sg_tablesize to %d from %d\n",
3232 ioc->name, numSGE, sh->sg_tablesize));
3233 sh->sg_tablesize = numSGE;
3234 }
3235
3236 hd = shost_priv(sh);
3237 hd->ioc = ioc;
3238
3239 /* SCSI needs scsi_cmnd lookup table!
3240 * (with size equal to req_depth*PtrSz!)
3241 */
3242 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
3243 if (!ioc->ScsiLookup) {
3244 error = -ENOMEM;
3245 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
3246 goto out_mptsas_probe;
3247 }
3248 spin_lock_init(&ioc->scsi_lookup_lock);
3249
3250 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n",
3251 ioc->name, ioc->ScsiLookup));
3252
3253 /* Clear the TM flags
3254 */
3255 hd->tmPending = 0;
3256 hd->tmState = TM_STATE_NONE;
3257 hd->resetPending = 0;
3258 hd->abortSCpnt = NULL;
3259
3260 /* Clear the pointer used to store
3261 * single-threaded commands, i.e., those
3262 * issued during a bus scan, dv and
3263 * configuration pages.
3264 */
3265 hd->cmdPtr = NULL;
3266
3267 /* Initialize this SCSI Hosts' timers
3268 * To use, set the timer expires field
3269 * and add_timer
3270 */
3271 init_timer(&hd->timer);
3272 hd->timer.data = (unsigned long) hd;
3273 hd->timer.function = mptscsih_timer_expired;
3274
3275 ioc->sas_data.ptClear = mpt_pt_clear;
3276
3277 init_waitqueue_head(&hd->scandv_waitq);
3278 hd->scandv_wait_done = 0;
3279 hd->last_queue_full = 0;
3280 INIT_LIST_HEAD(&hd->target_reset_list);
3281 spin_unlock_irqrestore(&ioc->FreeQlock, flags);
3282
3283 if (ioc->sas_data.ptClear==1) {
3284 mptbase_sas_persist_operation(
3285 ioc, MPI_SAS_OP_CLEAR_ALL_PERSISTENT);
3286 }
3287
3288 error = scsi_add_host(sh, &ioc->pcidev->dev);
3289 if (error) {
3290 dprintk(ioc, printk(MYIOC_s_ERR_FMT
3291 "scsi_add_host failed\n", ioc->name));
3292 goto out_mptsas_probe;
3293 }
3294
3295 mptsas_scan_sas_topology(ioc);
3296
3297 return 0;
3298
3299 out_mptsas_probe:
3300
3301 mptscsih_remove(pdev);
3302 return error;
3303 }
3304
3305 static void __devexit mptsas_remove(struct pci_dev *pdev)
3306 {
3307 MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
3308 struct mptsas_portinfo *p, *n;
3309 int i;
3310
3311 ioc->sas_discovery_ignore_events = 1;
3312 sas_remove_host(ioc->sh);
3313
3314 mutex_lock(&ioc->sas_topology_mutex);
3315 list_for_each_entry_safe(p, n, &ioc->sas_topology, list) {
3316 list_del(&p->list);
3317 for (i = 0 ; i < p->num_phys ; i++)
3318 mptsas_port_delete(ioc, p->phy_info[i].port_details);
3319 kfree(p->phy_info);
3320 kfree(p);
3321 }
3322 mutex_unlock(&ioc->sas_topology_mutex);
3323
3324 mptscsih_remove(pdev);
3325 }
3326
3327 static struct pci_device_id mptsas_pci_table[] = {
3328 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1064,
3329 PCI_ANY_ID, PCI_ANY_ID },
3330 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068,
3331 PCI_ANY_ID, PCI_ANY_ID },
3332 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1064E,
3333 PCI_ANY_ID, PCI_ANY_ID },
3334 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068E,
3335 PCI_ANY_ID, PCI_ANY_ID },
3336 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1078,
3337 PCI_ANY_ID, PCI_ANY_ID },
3338 {0} /* Terminating entry */
3339 };
3340 MODULE_DEVICE_TABLE(pci, mptsas_pci_table);
3341
3342
3343 static struct pci_driver mptsas_driver = {
3344 .name = "mptsas",
3345 .id_table = mptsas_pci_table,
3346 .probe = mptsas_probe,
3347 .remove = __devexit_p(mptsas_remove),
3348 .shutdown = mptscsih_shutdown,
3349 #ifdef CONFIG_PM
3350 .suspend = mptscsih_suspend,
3351 .resume = mptscsih_resume,
3352 #endif
3353 };
3354
3355 static int __init
3356 mptsas_init(void)
3357 {
3358 int error;
3359
3360 show_mptmod_ver(my_NAME, my_VERSION);
3361
3362 mptsas_transport_template =
3363 sas_attach_transport(&mptsas_transport_functions);
3364 if (!mptsas_transport_template)
3365 return -ENODEV;
3366
3367 mptsasDoneCtx = mpt_register(mptscsih_io_done, MPTSAS_DRIVER);
3368 mptsasTaskCtx = mpt_register(mptsas_taskmgmt_complete, MPTSAS_DRIVER);
3369 mptsasInternalCtx =
3370 mpt_register(mptscsih_scandv_complete, MPTSAS_DRIVER);
3371 mptsasMgmtCtx = mpt_register(mptsas_mgmt_done, MPTSAS_DRIVER);
3372
3373 mpt_event_register(mptsasDoneCtx, mptsas_event_process);
3374 mpt_reset_register(mptsasDoneCtx, mptsas_ioc_reset);
3375
3376 error = pci_register_driver(&mptsas_driver);
3377 if (error)
3378 sas_release_transport(mptsas_transport_template);
3379
3380 return error;
3381 }
3382
3383 static void __exit
3384 mptsas_exit(void)
3385 {
3386 pci_unregister_driver(&mptsas_driver);
3387 sas_release_transport(mptsas_transport_template);
3388
3389 mpt_reset_deregister(mptsasDoneCtx);
3390 mpt_event_deregister(mptsasDoneCtx);
3391
3392 mpt_deregister(mptsasMgmtCtx);
3393 mpt_deregister(mptsasInternalCtx);
3394 mpt_deregister(mptsasTaskCtx);
3395 mpt_deregister(mptsasDoneCtx);
3396 }
3397
3398 module_init(mptsas_init);
3399 module_exit(mptsas_exit);
Linux kernel - Deliverables
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