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