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45#include <linux/module.h>
46#include <linux/kernel.h>
47#include <linux/init.h>
48#include <linux/errno.h>
49#include <linux/sched.h>
50#include <linux/workqueue.h>
51#include <linux/delay.h>
52#include <linux/pci.h>
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 "mpt3sas_base.h"
62
63
64
65
66
67
68
69
70
71
72static struct _sas_node *
73_transport_sas_node_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
74 u64 sas_address)
75{
76 if (ioc->sas_hba.sas_address == sas_address)
77 return &ioc->sas_hba;
78 else
79 return mpt3sas_scsih_expander_find_by_sas_address(ioc,
80 sas_address);
81}
82
83
84
85
86
87
88
89static enum sas_linkrate
90_transport_convert_phy_link_rate(u8 link_rate)
91{
92 enum sas_linkrate rc;
93
94 switch (link_rate) {
95 case MPI2_SAS_NEG_LINK_RATE_1_5:
96 rc = SAS_LINK_RATE_1_5_GBPS;
97 break;
98 case MPI2_SAS_NEG_LINK_RATE_3_0:
99 rc = SAS_LINK_RATE_3_0_GBPS;
100 break;
101 case MPI2_SAS_NEG_LINK_RATE_6_0:
102 rc = SAS_LINK_RATE_6_0_GBPS;
103 break;
104 case MPI25_SAS_NEG_LINK_RATE_12_0:
105 rc = SAS_LINK_RATE_12_0_GBPS;
106 break;
107 case MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED:
108 rc = SAS_PHY_DISABLED;
109 break;
110 case MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
111 rc = SAS_LINK_RATE_FAILED;
112 break;
113 case MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR:
114 rc = SAS_SATA_PORT_SELECTOR;
115 break;
116 case MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
117 rc = SAS_PHY_RESET_IN_PROGRESS;
118 break;
119
120 default:
121 case MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
122 case MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
123 rc = SAS_LINK_RATE_UNKNOWN;
124 break;
125 }
126 return rc;
127}
128
129
130
131
132
133
134
135
136
137
138
139static int
140_transport_set_identify(struct MPT3SAS_ADAPTER *ioc, u16 handle,
141 struct sas_identify *identify)
142{
143 Mpi2SasDevicePage0_t sas_device_pg0;
144 Mpi2ConfigReply_t mpi_reply;
145 u32 device_info;
146 u32 ioc_status;
147
148 if (ioc->shost_recovery || ioc->pci_error_recovery) {
149 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
150 __func__, ioc->name);
151 return -EFAULT;
152 }
153
154 if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
155 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
156 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
157 ioc->name, __FILE__, __LINE__, __func__);
158 return -ENXIO;
159 }
160
161 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
162 MPI2_IOCSTATUS_MASK;
163 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
164 pr_err(MPT3SAS_FMT
165 "handle(0x%04x), ioc_status(0x%04x)\nfailure at %s:%d/%s()!\n",
166 ioc->name, handle, ioc_status,
167 __FILE__, __LINE__, __func__);
168 return -EIO;
169 }
170
171 memset(identify, 0, sizeof(struct sas_identify));
172 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
173
174
175 identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
176
177
178 identify->phy_identifier = sas_device_pg0.PhyNum;
179
180
181 switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) {
182 case MPI2_SAS_DEVICE_INFO_NO_DEVICE:
183 identify->device_type = SAS_PHY_UNUSED;
184 break;
185 case MPI2_SAS_DEVICE_INFO_END_DEVICE:
186 identify->device_type = SAS_END_DEVICE;
187 break;
188 case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER:
189 identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
190 break;
191 case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER:
192 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE;
193 break;
194 }
195
196
197 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR)
198 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
199 if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR)
200 identify->initiator_port_protocols |= SAS_PROTOCOL_STP;
201 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR)
202 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
203 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST)
204 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA;
205
206
207 if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET)
208 identify->target_port_protocols |= SAS_PROTOCOL_SSP;
209 if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
210 identify->target_port_protocols |= SAS_PROTOCOL_STP;
211 if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET)
212 identify->target_port_protocols |= SAS_PROTOCOL_SMP;
213 if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
214 identify->target_port_protocols |= SAS_PROTOCOL_SATA;
215
216 return 0;
217}
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232u8
233mpt3sas_transport_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
234 u32 reply)
235{
236 MPI2DefaultReply_t *mpi_reply;
237
238 mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
239 if (ioc->transport_cmds.status == MPT3_CMD_NOT_USED)
240 return 1;
241 if (ioc->transport_cmds.smid != smid)
242 return 1;
243 ioc->transport_cmds.status |= MPT3_CMD_COMPLETE;
244 if (mpi_reply) {
245 memcpy(ioc->transport_cmds.reply, mpi_reply,
246 mpi_reply->MsgLength*4);
247 ioc->transport_cmds.status |= MPT3_CMD_REPLY_VALID;
248 }
249 ioc->transport_cmds.status &= ~MPT3_CMD_PENDING;
250 complete(&ioc->transport_cmds.done);
251 return 1;
252}
253
254
255struct rep_manu_request {
256 u8 smp_frame_type;
257 u8 function;
258 u8 reserved;
259 u8 request_length;
260};
261
262
263struct rep_manu_reply {
264 u8 smp_frame_type;
265 u8 function;
266 u8 function_result;
267 u8 response_length;
268 u16 expander_change_count;
269 u8 reserved0[2];
270 u8 sas_format;
271 u8 reserved2[3];
272 u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
273 u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
274 u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
275 u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
276 u16 component_id;
277 u8 component_revision_id;
278 u8 reserved3;
279 u8 vendor_specific[8];
280};
281
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289
290
291
292static int
293_transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc,
294 u64 sas_address, struct sas_expander_device *edev)
295{
296 Mpi2SmpPassthroughRequest_t *mpi_request;
297 Mpi2SmpPassthroughReply_t *mpi_reply;
298 struct rep_manu_reply *manufacture_reply;
299 struct rep_manu_request *manufacture_request;
300 int rc;
301 u16 smid;
302 u32 ioc_state;
303 void *psge;
304 u8 issue_reset = 0;
305 void *data_out = NULL;
306 dma_addr_t data_out_dma;
307 dma_addr_t data_in_dma;
308 size_t data_in_sz;
309 size_t data_out_sz;
310 u16 wait_state_count;
311
312 if (ioc->shost_recovery || ioc->pci_error_recovery) {
313 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
314 __func__, ioc->name);
315 return -EFAULT;
316 }
317
318 mutex_lock(&ioc->transport_cmds.mutex);
319
320 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
321 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n",
322 ioc->name, __func__);
323 rc = -EAGAIN;
324 goto out;
325 }
326 ioc->transport_cmds.status = MPT3_CMD_PENDING;
327
328 wait_state_count = 0;
329 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
330 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
331 if (wait_state_count++ == 10) {
332 pr_err(MPT3SAS_FMT
333 "%s: failed due to ioc not operational\n",
334 ioc->name, __func__);
335 rc = -EFAULT;
336 goto out;
337 }
338 ssleep(1);
339 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
340 pr_info(MPT3SAS_FMT
341 "%s: waiting for operational state(count=%d)\n",
342 ioc->name, __func__, wait_state_count);
343 }
344 if (wait_state_count)
345 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
346 ioc->name, __func__);
347
348 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
349 if (!smid) {
350 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
351 ioc->name, __func__);
352 rc = -EAGAIN;
353 goto out;
354 }
355
356 rc = 0;
357 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
358 ioc->transport_cmds.smid = smid;
359
360 data_out_sz = sizeof(struct rep_manu_request);
361 data_in_sz = sizeof(struct rep_manu_reply);
362 data_out = pci_alloc_consistent(ioc->pdev, data_out_sz + data_in_sz,
363 &data_out_dma);
364
365 if (!data_out) {
366 pr_err("failure at %s:%d/%s()!\n", __FILE__,
367 __LINE__, __func__);
368 rc = -ENOMEM;
369 mpt3sas_base_free_smid(ioc, smid);
370 goto out;
371 }
372
373 data_in_dma = data_out_dma + sizeof(struct rep_manu_request);
374
375 manufacture_request = data_out;
376 manufacture_request->smp_frame_type = 0x40;
377 manufacture_request->function = 1;
378 manufacture_request->reserved = 0;
379 manufacture_request->request_length = 0;
380
381 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
382 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
383 mpi_request->PhysicalPort = 0xFF;
384 mpi_request->SASAddress = cpu_to_le64(sas_address);
385 mpi_request->RequestDataLength = cpu_to_le16(data_out_sz);
386 psge = &mpi_request->SGL;
387
388 ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
389 data_in_sz);
390
391 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
392 "report_manufacture - send to sas_addr(0x%016llx)\n",
393 ioc->name, (unsigned long long)sas_address));
394 init_completion(&ioc->transport_cmds.done);
395 ioc->put_smid_default(ioc, smid);
396 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
397
398 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
399 pr_err(MPT3SAS_FMT "%s: timeout\n",
400 ioc->name, __func__);
401 _debug_dump_mf(mpi_request,
402 sizeof(Mpi2SmpPassthroughRequest_t)/4);
403 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET))
404 issue_reset = 1;
405 goto issue_host_reset;
406 }
407
408 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
409 "report_manufacture - complete\n", ioc->name));
410
411 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) {
412 u8 *tmp;
413
414 mpi_reply = ioc->transport_cmds.reply;
415
416 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
417 "report_manufacture - reply data transfer size(%d)\n",
418 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
419
420 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
421 sizeof(struct rep_manu_reply))
422 goto out;
423
424 manufacture_reply = data_out + sizeof(struct rep_manu_request);
425 strncpy(edev->vendor_id, manufacture_reply->vendor_id,
426 SAS_EXPANDER_VENDOR_ID_LEN);
427 strncpy(edev->product_id, manufacture_reply->product_id,
428 SAS_EXPANDER_PRODUCT_ID_LEN);
429 strncpy(edev->product_rev, manufacture_reply->product_rev,
430 SAS_EXPANDER_PRODUCT_REV_LEN);
431 edev->level = manufacture_reply->sas_format & 1;
432 if (edev->level) {
433 strncpy(edev->component_vendor_id,
434 manufacture_reply->component_vendor_id,
435 SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
436 tmp = (u8 *)&manufacture_reply->component_id;
437 edev->component_id = tmp[0] << 8 | tmp[1];
438 edev->component_revision_id =
439 manufacture_reply->component_revision_id;
440 }
441 } else
442 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
443 "report_manufacture - no reply\n", ioc->name));
444
445 issue_host_reset:
446 if (issue_reset)
447 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
448 out:
449 ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
450 if (data_out)
451 pci_free_consistent(ioc->pdev, data_out_sz + data_in_sz,
452 data_out, data_out_dma);
453
454 mutex_unlock(&ioc->transport_cmds.mutex);
455 return rc;
456}
457
458
459
460
461
462
463
464
465
466static void
467_transport_delete_port(struct MPT3SAS_ADAPTER *ioc,
468 struct _sas_port *mpt3sas_port)
469{
470 u64 sas_address = mpt3sas_port->remote_identify.sas_address;
471 enum sas_device_type device_type =
472 mpt3sas_port->remote_identify.device_type;
473
474 dev_printk(KERN_INFO, &mpt3sas_port->port->dev,
475 "remove: sas_addr(0x%016llx)\n",
476 (unsigned long long) sas_address);
477
478 ioc->logging_level |= MPT_DEBUG_TRANSPORT;
479 if (device_type == SAS_END_DEVICE)
480 mpt3sas_device_remove_by_sas_address(ioc, sas_address);
481 else if (device_type == SAS_EDGE_EXPANDER_DEVICE ||
482 device_type == SAS_FANOUT_EXPANDER_DEVICE)
483 mpt3sas_expander_remove(ioc, sas_address);
484 ioc->logging_level &= ~MPT_DEBUG_TRANSPORT;
485}
486
487
488
489
490
491
492
493
494
495static void
496_transport_delete_phy(struct MPT3SAS_ADAPTER *ioc,
497 struct _sas_port *mpt3sas_port, struct _sas_phy *mpt3sas_phy)
498{
499 u64 sas_address = mpt3sas_port->remote_identify.sas_address;
500
501 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev,
502 "remove: sas_addr(0x%016llx), phy(%d)\n",
503 (unsigned long long) sas_address, mpt3sas_phy->phy_id);
504
505 list_del(&mpt3sas_phy->port_siblings);
506 mpt3sas_port->num_phys--;
507 sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy);
508 mpt3sas_phy->phy_belongs_to_port = 0;
509}
510
511
512
513
514
515
516
517
518
519static void
520_transport_add_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_port *mpt3sas_port,
521 struct _sas_phy *mpt3sas_phy)
522{
523 u64 sas_address = mpt3sas_port->remote_identify.sas_address;
524
525 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev,
526 "add: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long)
527 sas_address, mpt3sas_phy->phy_id);
528
529 list_add_tail(&mpt3sas_phy->port_siblings, &mpt3sas_port->phy_list);
530 mpt3sas_port->num_phys++;
531 sas_port_add_phy(mpt3sas_port->port, mpt3sas_phy->phy);
532 mpt3sas_phy->phy_belongs_to_port = 1;
533}
534
535
536
537
538
539
540
541
542
543
544static void
545_transport_add_phy_to_an_existing_port(struct MPT3SAS_ADAPTER *ioc,
546 struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy,
547 u64 sas_address)
548{
549 struct _sas_port *mpt3sas_port;
550 struct _sas_phy *phy_srch;
551
552 if (mpt3sas_phy->phy_belongs_to_port == 1)
553 return;
554
555 list_for_each_entry(mpt3sas_port, &sas_node->sas_port_list,
556 port_list) {
557 if (mpt3sas_port->remote_identify.sas_address !=
558 sas_address)
559 continue;
560 list_for_each_entry(phy_srch, &mpt3sas_port->phy_list,
561 port_siblings) {
562 if (phy_srch == mpt3sas_phy)
563 return;
564 }
565 _transport_add_phy(ioc, mpt3sas_port, mpt3sas_phy);
566 return;
567 }
568
569}
570
571
572
573
574
575
576
577
578
579static void
580_transport_del_phy_from_an_existing_port(struct MPT3SAS_ADAPTER *ioc,
581 struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy)
582{
583 struct _sas_port *mpt3sas_port, *next;
584 struct _sas_phy *phy_srch;
585
586 if (mpt3sas_phy->phy_belongs_to_port == 0)
587 return;
588
589 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list,
590 port_list) {
591 list_for_each_entry(phy_srch, &mpt3sas_port->phy_list,
592 port_siblings) {
593 if (phy_srch != mpt3sas_phy)
594 continue;
595
596 if (mpt3sas_port->num_phys == 1)
597 _transport_delete_port(ioc, mpt3sas_port);
598 else
599 _transport_delete_phy(ioc, mpt3sas_port,
600 mpt3sas_phy);
601 return;
602 }
603 }
604}
605
606
607
608
609
610
611
612
613
614static void
615_transport_sanity_check(struct MPT3SAS_ADAPTER *ioc, struct _sas_node *sas_node,
616 u64 sas_address)
617{
618 int i;
619
620 for (i = 0; i < sas_node->num_phys; i++) {
621 if (sas_node->phy[i].remote_identify.sas_address != sas_address)
622 continue;
623 if (sas_node->phy[i].phy_belongs_to_port == 1)
624 _transport_del_phy_from_an_existing_port(ioc, sas_node,
625 &sas_node->phy[i]);
626 }
627}
628
629
630
631
632
633
634
635
636
637
638
639
640struct _sas_port *
641mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle,
642 u64 sas_address)
643{
644 struct _sas_phy *mpt3sas_phy, *next;
645 struct _sas_port *mpt3sas_port;
646 unsigned long flags;
647 struct _sas_node *sas_node;
648 struct sas_rphy *rphy;
649 struct _sas_device *sas_device = NULL;
650 int i;
651 struct sas_port *port;
652
653 mpt3sas_port = kzalloc(sizeof(struct _sas_port),
654 GFP_KERNEL);
655 if (!mpt3sas_port) {
656 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
657 ioc->name, __FILE__, __LINE__, __func__);
658 return NULL;
659 }
660
661 INIT_LIST_HEAD(&mpt3sas_port->port_list);
662 INIT_LIST_HEAD(&mpt3sas_port->phy_list);
663 spin_lock_irqsave(&ioc->sas_node_lock, flags);
664 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
665 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
666
667 if (!sas_node) {
668 pr_err(MPT3SAS_FMT
669 "%s: Could not find parent sas_address(0x%016llx)!\n",
670 ioc->name, __func__, (unsigned long long)sas_address);
671 goto out_fail;
672 }
673
674 if ((_transport_set_identify(ioc, handle,
675 &mpt3sas_port->remote_identify))) {
676 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
677 ioc->name, __FILE__, __LINE__, __func__);
678 goto out_fail;
679 }
680
681 if (mpt3sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
682 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
683 ioc->name, __FILE__, __LINE__, __func__);
684 goto out_fail;
685 }
686
687 _transport_sanity_check(ioc, sas_node,
688 mpt3sas_port->remote_identify.sas_address);
689
690 for (i = 0; i < sas_node->num_phys; i++) {
691 if (sas_node->phy[i].remote_identify.sas_address !=
692 mpt3sas_port->remote_identify.sas_address)
693 continue;
694 list_add_tail(&sas_node->phy[i].port_siblings,
695 &mpt3sas_port->phy_list);
696 mpt3sas_port->num_phys++;
697 }
698
699 if (!mpt3sas_port->num_phys) {
700 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
701 ioc->name, __FILE__, __LINE__, __func__);
702 goto out_fail;
703 }
704
705 if (!sas_node->parent_dev) {
706 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
707 ioc->name, __FILE__, __LINE__, __func__);
708 goto out_fail;
709 }
710 port = sas_port_alloc_num(sas_node->parent_dev);
711 if ((sas_port_add(port))) {
712 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
713 ioc->name, __FILE__, __LINE__, __func__);
714 goto out_fail;
715 }
716
717 list_for_each_entry(mpt3sas_phy, &mpt3sas_port->phy_list,
718 port_siblings) {
719 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
720 dev_printk(KERN_INFO, &port->dev,
721 "add: handle(0x%04x), sas_addr(0x%016llx), phy(%d)\n",
722 handle, (unsigned long long)
723 mpt3sas_port->remote_identify.sas_address,
724 mpt3sas_phy->phy_id);
725 sas_port_add_phy(port, mpt3sas_phy->phy);
726 mpt3sas_phy->phy_belongs_to_port = 1;
727 }
728
729 mpt3sas_port->port = port;
730 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE)
731 rphy = sas_end_device_alloc(port);
732 else
733 rphy = sas_expander_alloc(port,
734 mpt3sas_port->remote_identify.device_type);
735
736 rphy->identify = mpt3sas_port->remote_identify;
737
738 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) {
739 sas_device = mpt3sas_get_sdev_by_addr(ioc,
740 mpt3sas_port->remote_identify.sas_address);
741 if (!sas_device) {
742 dfailprintk(ioc, printk(MPT3SAS_FMT
743 "failure at %s:%d/%s()!\n",
744 ioc->name, __FILE__, __LINE__, __func__));
745 goto out_fail;
746 }
747 sas_device->pend_sas_rphy_add = 1;
748 }
749
750 if ((sas_rphy_add(rphy))) {
751 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
752 ioc->name, __FILE__, __LINE__, __func__);
753 }
754
755 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) {
756 sas_device->pend_sas_rphy_add = 0;
757 sas_device_put(sas_device);
758 }
759
760 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
761 dev_printk(KERN_INFO, &rphy->dev,
762 "add: handle(0x%04x), sas_addr(0x%016llx)\n",
763 handle, (unsigned long long)
764 mpt3sas_port->remote_identify.sas_address);
765 mpt3sas_port->rphy = rphy;
766 spin_lock_irqsave(&ioc->sas_node_lock, flags);
767 list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list);
768 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
769
770
771 if (mpt3sas_port->remote_identify.device_type ==
772 MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
773 mpt3sas_port->remote_identify.device_type ==
774 MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER)
775 _transport_expander_report_manufacture(ioc,
776 mpt3sas_port->remote_identify.sas_address,
777 rphy_to_expander_device(rphy));
778 return mpt3sas_port;
779
780 out_fail:
781 list_for_each_entry_safe(mpt3sas_phy, next, &mpt3sas_port->phy_list,
782 port_siblings)
783 list_del(&mpt3sas_phy->port_siblings);
784 kfree(mpt3sas_port);
785 return NULL;
786}
787
788
789
790
791
792
793
794
795
796
797
798
799
800void
801mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
802 u64 sas_address_parent)
803{
804 int i;
805 unsigned long flags;
806 struct _sas_port *mpt3sas_port, *next;
807 struct _sas_node *sas_node;
808 u8 found = 0;
809 struct _sas_phy *mpt3sas_phy, *next_phy;
810
811 spin_lock_irqsave(&ioc->sas_node_lock, flags);
812 sas_node = _transport_sas_node_find_by_sas_address(ioc,
813 sas_address_parent);
814 if (!sas_node) {
815 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
816 return;
817 }
818 list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list,
819 port_list) {
820 if (mpt3sas_port->remote_identify.sas_address != sas_address)
821 continue;
822 found = 1;
823 list_del(&mpt3sas_port->port_list);
824 goto out;
825 }
826 out:
827 if (!found) {
828 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
829 return;
830 }
831
832 for (i = 0; i < sas_node->num_phys; i++) {
833 if (sas_node->phy[i].remote_identify.sas_address == sas_address)
834 memset(&sas_node->phy[i].remote_identify, 0 ,
835 sizeof(struct sas_identify));
836 }
837
838 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
839
840 list_for_each_entry_safe(mpt3sas_phy, next_phy,
841 &mpt3sas_port->phy_list, port_siblings) {
842 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
843 dev_printk(KERN_INFO, &mpt3sas_port->port->dev,
844 "remove: sas_addr(0x%016llx), phy(%d)\n",
845 (unsigned long long)
846 mpt3sas_port->remote_identify.sas_address,
847 mpt3sas_phy->phy_id);
848 mpt3sas_phy->phy_belongs_to_port = 0;
849 sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy);
850 list_del(&mpt3sas_phy->port_siblings);
851 }
852 sas_port_delete(mpt3sas_port->port);
853 kfree(mpt3sas_port);
854}
855
856
857
858
859
860
861
862
863
864
865int
866mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy
867 *mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev)
868{
869 struct sas_phy *phy;
870 int phy_index = mpt3sas_phy->phy_id;
871
872
873 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings);
874 phy = sas_phy_alloc(parent_dev, phy_index);
875 if (!phy) {
876 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
877 ioc->name, __FILE__, __LINE__, __func__);
878 return -1;
879 }
880 if ((_transport_set_identify(ioc, mpt3sas_phy->handle,
881 &mpt3sas_phy->identify))) {
882 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
883 ioc->name, __FILE__, __LINE__, __func__);
884 sas_phy_free(phy);
885 return -1;
886 }
887 phy->identify = mpt3sas_phy->identify;
888 mpt3sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle);
889 if (mpt3sas_phy->attached_handle)
890 _transport_set_identify(ioc, mpt3sas_phy->attached_handle,
891 &mpt3sas_phy->remote_identify);
892 phy->identify.phy_identifier = mpt3sas_phy->phy_id;
893 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
894 phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
895 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
896 phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
897 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
898 phy_pg0.HwLinkRate >> 4);
899 phy->minimum_linkrate = _transport_convert_phy_link_rate(
900 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
901 phy->maximum_linkrate = _transport_convert_phy_link_rate(
902 phy_pg0.ProgrammedLinkRate >> 4);
903
904 if ((sas_phy_add(phy))) {
905 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
906 ioc->name, __FILE__, __LINE__, __func__);
907 sas_phy_free(phy);
908 return -1;
909 }
910 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
911 dev_printk(KERN_INFO, &phy->dev,
912 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
913 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
914 mpt3sas_phy->handle, (unsigned long long)
915 mpt3sas_phy->identify.sas_address,
916 mpt3sas_phy->attached_handle,
917 (unsigned long long)
918 mpt3sas_phy->remote_identify.sas_address);
919 mpt3sas_phy->phy = phy;
920 return 0;
921}
922
923
924
925
926
927
928
929
930
931
932
933int
934mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy
935 *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1,
936 struct device *parent_dev)
937{
938 struct sas_phy *phy;
939 int phy_index = mpt3sas_phy->phy_id;
940
941 INIT_LIST_HEAD(&mpt3sas_phy->port_siblings);
942 phy = sas_phy_alloc(parent_dev, phy_index);
943 if (!phy) {
944 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
945 ioc->name, __FILE__, __LINE__, __func__);
946 return -1;
947 }
948 if ((_transport_set_identify(ioc, mpt3sas_phy->handle,
949 &mpt3sas_phy->identify))) {
950 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
951 ioc->name, __FILE__, __LINE__, __func__);
952 sas_phy_free(phy);
953 return -1;
954 }
955 phy->identify = mpt3sas_phy->identify;
956 mpt3sas_phy->attached_handle =
957 le16_to_cpu(expander_pg1.AttachedDevHandle);
958 if (mpt3sas_phy->attached_handle)
959 _transport_set_identify(ioc, mpt3sas_phy->attached_handle,
960 &mpt3sas_phy->remote_identify);
961 phy->identify.phy_identifier = mpt3sas_phy->phy_id;
962 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
963 expander_pg1.NegotiatedLinkRate &
964 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
965 phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
966 expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
967 phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
968 expander_pg1.HwLinkRate >> 4);
969 phy->minimum_linkrate = _transport_convert_phy_link_rate(
970 expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
971 phy->maximum_linkrate = _transport_convert_phy_link_rate(
972 expander_pg1.ProgrammedLinkRate >> 4);
973
974 if ((sas_phy_add(phy))) {
975 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
976 ioc->name, __FILE__, __LINE__, __func__);
977 sas_phy_free(phy);
978 return -1;
979 }
980 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
981 dev_printk(KERN_INFO, &phy->dev,
982 "add: handle(0x%04x), sas_addr(0x%016llx)\n"
983 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
984 mpt3sas_phy->handle, (unsigned long long)
985 mpt3sas_phy->identify.sas_address,
986 mpt3sas_phy->attached_handle,
987 (unsigned long long)
988 mpt3sas_phy->remote_identify.sas_address);
989 mpt3sas_phy->phy = phy;
990 return 0;
991}
992
993
994
995
996
997
998
999
1000
1001
1002
1003void
1004mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc,
1005 u64 sas_address, u16 handle, u8 phy_number, u8 link_rate)
1006{
1007 unsigned long flags;
1008 struct _sas_node *sas_node;
1009 struct _sas_phy *mpt3sas_phy;
1010
1011 if (ioc->shost_recovery || ioc->pci_error_recovery)
1012 return;
1013
1014 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1015 sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
1016 if (!sas_node) {
1017 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1018 return;
1019 }
1020
1021 mpt3sas_phy = &sas_node->phy[phy_number];
1022 mpt3sas_phy->attached_handle = handle;
1023 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1024 if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) {
1025 _transport_set_identify(ioc, handle,
1026 &mpt3sas_phy->remote_identify);
1027 _transport_add_phy_to_an_existing_port(ioc, sas_node,
1028 mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address);
1029 } else
1030 memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct
1031 sas_identify));
1032
1033 if (mpt3sas_phy->phy)
1034 mpt3sas_phy->phy->negotiated_linkrate =
1035 _transport_convert_phy_link_rate(link_rate);
1036
1037 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
1038 dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev,
1039 "refresh: parent sas_addr(0x%016llx),\n"
1040 "\tlink_rate(0x%02x), phy(%d)\n"
1041 "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
1042 (unsigned long long)sas_address,
1043 link_rate, phy_number, handle, (unsigned long long)
1044 mpt3sas_phy->remote_identify.sas_address);
1045}
1046
1047static inline void *
1048phy_to_ioc(struct sas_phy *phy)
1049{
1050 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
1051 return shost_priv(shost);
1052}
1053
1054static inline void *
1055rphy_to_ioc(struct sas_rphy *rphy)
1056{
1057 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
1058 return shost_priv(shost);
1059}
1060
1061
1062struct phy_error_log_request {
1063 u8 smp_frame_type;
1064 u8 function;
1065 u8 allocated_response_length;
1066 u8 request_length;
1067 u8 reserved_1[5];
1068 u8 phy_identifier;
1069 u8 reserved_2[2];
1070};
1071
1072
1073struct phy_error_log_reply {
1074 u8 smp_frame_type;
1075 u8 function;
1076 u8 function_result;
1077 u8 response_length;
1078 __be16 expander_change_count;
1079 u8 reserved_1[3];
1080 u8 phy_identifier;
1081 u8 reserved_2[2];
1082 __be32 invalid_dword;
1083 __be32 running_disparity_error;
1084 __be32 loss_of_dword_sync;
1085 __be32 phy_reset_problem;
1086};
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096static int
1097_transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc,
1098 struct sas_phy *phy)
1099{
1100 Mpi2SmpPassthroughRequest_t *mpi_request;
1101 Mpi2SmpPassthroughReply_t *mpi_reply;
1102 struct phy_error_log_request *phy_error_log_request;
1103 struct phy_error_log_reply *phy_error_log_reply;
1104 int rc;
1105 u16 smid;
1106 u32 ioc_state;
1107 void *psge;
1108 u8 issue_reset = 0;
1109 void *data_out = NULL;
1110 dma_addr_t data_out_dma;
1111 u32 sz;
1112 u16 wait_state_count;
1113
1114 if (ioc->shost_recovery || ioc->pci_error_recovery) {
1115 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
1116 __func__, ioc->name);
1117 return -EFAULT;
1118 }
1119
1120 mutex_lock(&ioc->transport_cmds.mutex);
1121
1122 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
1123 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n",
1124 ioc->name, __func__);
1125 rc = -EAGAIN;
1126 goto out;
1127 }
1128 ioc->transport_cmds.status = MPT3_CMD_PENDING;
1129
1130 wait_state_count = 0;
1131 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1132 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1133 if (wait_state_count++ == 10) {
1134 pr_err(MPT3SAS_FMT
1135 "%s: failed due to ioc not operational\n",
1136 ioc->name, __func__);
1137 rc = -EFAULT;
1138 goto out;
1139 }
1140 ssleep(1);
1141 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1142 pr_info(MPT3SAS_FMT
1143 "%s: waiting for operational state(count=%d)\n",
1144 ioc->name, __func__, wait_state_count);
1145 }
1146 if (wait_state_count)
1147 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
1148 ioc->name, __func__);
1149
1150 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
1151 if (!smid) {
1152 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1153 ioc->name, __func__);
1154 rc = -EAGAIN;
1155 goto out;
1156 }
1157
1158 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1159 ioc->transport_cmds.smid = smid;
1160
1161 sz = sizeof(struct phy_error_log_request) +
1162 sizeof(struct phy_error_log_reply);
1163 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
1164 if (!data_out) {
1165 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1166 __LINE__, __func__);
1167 rc = -ENOMEM;
1168 mpt3sas_base_free_smid(ioc, smid);
1169 goto out;
1170 }
1171
1172 rc = -EINVAL;
1173 memset(data_out, 0, sz);
1174 phy_error_log_request = data_out;
1175 phy_error_log_request->smp_frame_type = 0x40;
1176 phy_error_log_request->function = 0x11;
1177 phy_error_log_request->request_length = 2;
1178 phy_error_log_request->allocated_response_length = 0;
1179 phy_error_log_request->phy_identifier = phy->number;
1180
1181 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
1182 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
1183 mpi_request->PhysicalPort = 0xFF;
1184 mpi_request->VF_ID = 0;
1185 mpi_request->VP_ID = 0;
1186 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address);
1187 mpi_request->RequestDataLength =
1188 cpu_to_le16(sizeof(struct phy_error_log_request));
1189 psge = &mpi_request->SGL;
1190
1191 ioc->build_sg(ioc, psge, data_out_dma,
1192 sizeof(struct phy_error_log_request),
1193 data_out_dma + sizeof(struct phy_error_log_request),
1194 sizeof(struct phy_error_log_reply));
1195
1196 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1197 "phy_error_log - send to sas_addr(0x%016llx), phy(%d)\n",
1198 ioc->name, (unsigned long long)phy->identify.sas_address,
1199 phy->number));
1200 init_completion(&ioc->transport_cmds.done);
1201 ioc->put_smid_default(ioc, smid);
1202 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
1203
1204 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
1205 pr_err(MPT3SAS_FMT "%s: timeout\n",
1206 ioc->name, __func__);
1207 _debug_dump_mf(mpi_request,
1208 sizeof(Mpi2SmpPassthroughRequest_t)/4);
1209 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET))
1210 issue_reset = 1;
1211 goto issue_host_reset;
1212 }
1213
1214 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1215 "phy_error_log - complete\n", ioc->name));
1216
1217 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) {
1218
1219 mpi_reply = ioc->transport_cmds.reply;
1220
1221 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1222 "phy_error_log - reply data transfer size(%d)\n",
1223 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
1224
1225 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
1226 sizeof(struct phy_error_log_reply))
1227 goto out;
1228
1229 phy_error_log_reply = data_out +
1230 sizeof(struct phy_error_log_request);
1231
1232 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1233 "phy_error_log - function_result(%d)\n",
1234 ioc->name, phy_error_log_reply->function_result));
1235
1236 phy->invalid_dword_count =
1237 be32_to_cpu(phy_error_log_reply->invalid_dword);
1238 phy->running_disparity_error_count =
1239 be32_to_cpu(phy_error_log_reply->running_disparity_error);
1240 phy->loss_of_dword_sync_count =
1241 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
1242 phy->phy_reset_problem_count =
1243 be32_to_cpu(phy_error_log_reply->phy_reset_problem);
1244 rc = 0;
1245 } else
1246 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1247 "phy_error_log - no reply\n", ioc->name));
1248
1249 issue_host_reset:
1250 if (issue_reset)
1251 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1252 out:
1253 ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
1254 if (data_out)
1255 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
1256
1257 mutex_unlock(&ioc->transport_cmds.mutex);
1258 return rc;
1259}
1260
1261
1262
1263
1264
1265
1266
1267
1268static int
1269_transport_get_linkerrors(struct sas_phy *phy)
1270{
1271 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
1272 unsigned long flags;
1273 Mpi2ConfigReply_t mpi_reply;
1274 Mpi2SasPhyPage1_t phy_pg1;
1275
1276 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1277 if (_transport_sas_node_find_by_sas_address(ioc,
1278 phy->identify.sas_address) == NULL) {
1279 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1280 return -EINVAL;
1281 }
1282 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1283
1284 if (phy->identify.sas_address != ioc->sas_hba.sas_address)
1285 return _transport_get_expander_phy_error_log(ioc, phy);
1286
1287
1288 if ((mpt3sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1,
1289 phy->number))) {
1290 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1291 ioc->name, __FILE__, __LINE__, __func__);
1292 return -ENXIO;
1293 }
1294
1295 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
1296 pr_info(MPT3SAS_FMT
1297 "phy(%d), ioc_status (0x%04x), loginfo(0x%08x)\n",
1298 ioc->name, phy->number,
1299 le16_to_cpu(mpi_reply.IOCStatus),
1300 le32_to_cpu(mpi_reply.IOCLogInfo));
1301
1302 phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount);
1303 phy->running_disparity_error_count =
1304 le32_to_cpu(phy_pg1.RunningDisparityErrorCount);
1305 phy->loss_of_dword_sync_count =
1306 le32_to_cpu(phy_pg1.LossDwordSynchCount);
1307 phy->phy_reset_problem_count =
1308 le32_to_cpu(phy_pg1.PhyResetProblemCount);
1309 return 0;
1310}
1311
1312
1313
1314
1315
1316
1317
1318
1319static int
1320_transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
1321{
1322 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
1323 struct _sas_device *sas_device;
1324 unsigned long flags;
1325 int rc;
1326
1327 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1328 sas_device = __mpt3sas_get_sdev_by_addr(ioc,
1329 rphy->identify.sas_address);
1330 if (sas_device) {
1331 *identifier = sas_device->enclosure_logical_id;
1332 rc = 0;
1333 sas_device_put(sas_device);
1334 } else {
1335 *identifier = 0;
1336 rc = -ENXIO;
1337 }
1338
1339 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1340 return rc;
1341}
1342
1343
1344
1345
1346
1347
1348
1349static int
1350_transport_get_bay_identifier(struct sas_rphy *rphy)
1351{
1352 struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
1353 struct _sas_device *sas_device;
1354 unsigned long flags;
1355 int rc;
1356
1357 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1358 sas_device = __mpt3sas_get_sdev_by_addr(ioc,
1359 rphy->identify.sas_address);
1360 if (sas_device) {
1361 rc = sas_device->slot;
1362 sas_device_put(sas_device);
1363 } else {
1364 rc = -ENXIO;
1365 }
1366 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1367 return rc;
1368}
1369
1370
1371struct phy_control_request {
1372 u8 smp_frame_type;
1373 u8 function;
1374 u8 allocated_response_length;
1375 u8 request_length;
1376 u16 expander_change_count;
1377 u8 reserved_1[3];
1378 u8 phy_identifier;
1379 u8 phy_operation;
1380 u8 reserved_2[13];
1381 u64 attached_device_name;
1382 u8 programmed_min_physical_link_rate;
1383 u8 programmed_max_physical_link_rate;
1384 u8 reserved_3[6];
1385};
1386
1387
1388struct phy_control_reply {
1389 u8 smp_frame_type;
1390 u8 function;
1391 u8 function_result;
1392 u8 response_length;
1393};
1394
1395#define SMP_PHY_CONTROL_LINK_RESET (0x01)
1396#define SMP_PHY_CONTROL_HARD_RESET (0x02)
1397#define SMP_PHY_CONTROL_DISABLE (0x03)
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407static int
1408_transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc,
1409 struct sas_phy *phy, u8 phy_operation)
1410{
1411 Mpi2SmpPassthroughRequest_t *mpi_request;
1412 Mpi2SmpPassthroughReply_t *mpi_reply;
1413 struct phy_control_request *phy_control_request;
1414 struct phy_control_reply *phy_control_reply;
1415 int rc;
1416 u16 smid;
1417 u32 ioc_state;
1418 void *psge;
1419 u8 issue_reset = 0;
1420 void *data_out = NULL;
1421 dma_addr_t data_out_dma;
1422 u32 sz;
1423 u16 wait_state_count;
1424
1425 if (ioc->shost_recovery || ioc->pci_error_recovery) {
1426 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
1427 __func__, ioc->name);
1428 return -EFAULT;
1429 }
1430
1431 mutex_lock(&ioc->transport_cmds.mutex);
1432
1433 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
1434 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n",
1435 ioc->name, __func__);
1436 rc = -EAGAIN;
1437 goto out;
1438 }
1439 ioc->transport_cmds.status = MPT3_CMD_PENDING;
1440
1441 wait_state_count = 0;
1442 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1443 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1444 if (wait_state_count++ == 10) {
1445 pr_err(MPT3SAS_FMT
1446 "%s: failed due to ioc not operational\n",
1447 ioc->name, __func__);
1448 rc = -EFAULT;
1449 goto out;
1450 }
1451 ssleep(1);
1452 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1453 pr_info(MPT3SAS_FMT
1454 "%s: waiting for operational state(count=%d)\n",
1455 ioc->name, __func__, wait_state_count);
1456 }
1457 if (wait_state_count)
1458 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
1459 ioc->name, __func__);
1460
1461 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
1462 if (!smid) {
1463 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1464 ioc->name, __func__);
1465 rc = -EAGAIN;
1466 goto out;
1467 }
1468
1469 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1470 ioc->transport_cmds.smid = smid;
1471
1472 sz = sizeof(struct phy_control_request) +
1473 sizeof(struct phy_control_reply);
1474 data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
1475 if (!data_out) {
1476 pr_err("failure at %s:%d/%s()!\n", __FILE__,
1477 __LINE__, __func__);
1478 rc = -ENOMEM;
1479 mpt3sas_base_free_smid(ioc, smid);
1480 goto out;
1481 }
1482
1483 rc = -EINVAL;
1484 memset(data_out, 0, sz);
1485 phy_control_request = data_out;
1486 phy_control_request->smp_frame_type = 0x40;
1487 phy_control_request->function = 0x91;
1488 phy_control_request->request_length = 9;
1489 phy_control_request->allocated_response_length = 0;
1490 phy_control_request->phy_identifier = phy->number;
1491 phy_control_request->phy_operation = phy_operation;
1492 phy_control_request->programmed_min_physical_link_rate =
1493 phy->minimum_linkrate << 4;
1494 phy_control_request->programmed_max_physical_link_rate =
1495 phy->maximum_linkrate << 4;
1496
1497 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
1498 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
1499 mpi_request->PhysicalPort = 0xFF;
1500 mpi_request->VF_ID = 0;
1501 mpi_request->VP_ID = 0;
1502 mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address);
1503 mpi_request->RequestDataLength =
1504 cpu_to_le16(sizeof(struct phy_error_log_request));
1505 psge = &mpi_request->SGL;
1506
1507 ioc->build_sg(ioc, psge, data_out_dma,
1508 sizeof(struct phy_control_request),
1509 data_out_dma + sizeof(struct phy_control_request),
1510 sizeof(struct phy_control_reply));
1511
1512 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1513 "phy_control - send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n",
1514 ioc->name, (unsigned long long)phy->identify.sas_address,
1515 phy->number, phy_operation));
1516 init_completion(&ioc->transport_cmds.done);
1517 ioc->put_smid_default(ioc, smid);
1518 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
1519
1520 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
1521 pr_err(MPT3SAS_FMT "%s: timeout\n",
1522 ioc->name, __func__);
1523 _debug_dump_mf(mpi_request,
1524 sizeof(Mpi2SmpPassthroughRequest_t)/4);
1525 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET))
1526 issue_reset = 1;
1527 goto issue_host_reset;
1528 }
1529
1530 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1531 "phy_control - complete\n", ioc->name));
1532
1533 if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) {
1534
1535 mpi_reply = ioc->transport_cmds.reply;
1536
1537 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1538 "phy_control - reply data transfer size(%d)\n",
1539 ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
1540
1541 if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
1542 sizeof(struct phy_control_reply))
1543 goto out;
1544
1545 phy_control_reply = data_out +
1546 sizeof(struct phy_control_request);
1547
1548 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1549 "phy_control - function_result(%d)\n",
1550 ioc->name, phy_control_reply->function_result));
1551
1552 rc = 0;
1553 } else
1554 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
1555 "phy_control - no reply\n", ioc->name));
1556
1557 issue_host_reset:
1558 if (issue_reset)
1559 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
1560 out:
1561 ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
1562 if (data_out)
1563 pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
1564
1565 mutex_unlock(&ioc->transport_cmds.mutex);
1566 return rc;
1567}
1568
1569
1570
1571
1572
1573
1574
1575
1576static int
1577_transport_phy_reset(struct sas_phy *phy, int hard_reset)
1578{
1579 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
1580 Mpi2SasIoUnitControlReply_t mpi_reply;
1581 Mpi2SasIoUnitControlRequest_t mpi_request;
1582 unsigned long flags;
1583
1584 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1585 if (_transport_sas_node_find_by_sas_address(ioc,
1586 phy->identify.sas_address) == NULL) {
1587 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1588 return -EINVAL;
1589 }
1590 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1591
1592
1593 if (phy->identify.sas_address != ioc->sas_hba.sas_address)
1594 return _transport_expander_phy_control(ioc, phy,
1595 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
1596 SMP_PHY_CONTROL_LINK_RESET);
1597
1598
1599 memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
1600 mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
1601 mpi_request.Operation = hard_reset ?
1602 MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET;
1603 mpi_request.PhyNum = phy->number;
1604
1605 if ((mpt3sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) {
1606 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1607 ioc->name, __FILE__, __LINE__, __func__);
1608 return -ENXIO;
1609 }
1610
1611 if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
1612 pr_info(MPT3SAS_FMT
1613 "phy(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
1614 ioc->name, phy->number, le16_to_cpu(mpi_reply.IOCStatus),
1615 le32_to_cpu(mpi_reply.IOCLogInfo));
1616
1617 return 0;
1618}
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628static int
1629_transport_phy_enable(struct sas_phy *phy, int enable)
1630{
1631 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
1632 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
1633 Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
1634 Mpi2ConfigReply_t mpi_reply;
1635 u16 ioc_status;
1636 u16 sz;
1637 int rc = 0;
1638 unsigned long flags;
1639 int i, discovery_active;
1640
1641 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1642 if (_transport_sas_node_find_by_sas_address(ioc,
1643 phy->identify.sas_address) == NULL) {
1644 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1645 return -EINVAL;
1646 }
1647 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1648
1649
1650 if (phy->identify.sas_address != ioc->sas_hba.sas_address)
1651 return _transport_expander_phy_control(ioc, phy,
1652 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
1653 SMP_PHY_CONTROL_DISABLE);
1654
1655
1656
1657
1658 sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
1659 sizeof(Mpi2SasIOUnit0PhyData_t));
1660 sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
1661 if (!sas_iounit_pg0) {
1662 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1663 ioc->name, __FILE__, __LINE__, __func__);
1664 rc = -ENOMEM;
1665 goto out;
1666 }
1667 if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
1668 sas_iounit_pg0, sz))) {
1669 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1670 ioc->name, __FILE__, __LINE__, __func__);
1671 rc = -ENXIO;
1672 goto out;
1673 }
1674 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1675 MPI2_IOCSTATUS_MASK;
1676 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1677 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1678 ioc->name, __FILE__, __LINE__, __func__);
1679 rc = -EIO;
1680 goto out;
1681 }
1682
1683
1684 for (i = 0, discovery_active = 0; i < ioc->sas_hba.num_phys ; i++) {
1685 if (sas_iounit_pg0->PhyData[i].PortFlags &
1686 MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) {
1687 pr_err(MPT3SAS_FMT "discovery is active on " \
1688 "port = %d, phy = %d: unable to enable/disable "
1689 "phys, try again later!\n", ioc->name,
1690 sas_iounit_pg0->PhyData[i].Port, i);
1691 discovery_active = 1;
1692 }
1693 }
1694
1695 if (discovery_active) {
1696 rc = -EAGAIN;
1697 goto out;
1698 }
1699
1700
1701 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
1702 sizeof(Mpi2SasIOUnit1PhyData_t));
1703 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
1704 if (!sas_iounit_pg1) {
1705 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1706 ioc->name, __FILE__, __LINE__, __func__);
1707 rc = -ENOMEM;
1708 goto out;
1709 }
1710 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
1711 sas_iounit_pg1, sz))) {
1712 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1713 ioc->name, __FILE__, __LINE__, __func__);
1714 rc = -ENXIO;
1715 goto out;
1716 }
1717 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1718 MPI2_IOCSTATUS_MASK;
1719 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1720 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1721 ioc->name, __FILE__, __LINE__, __func__);
1722 rc = -EIO;
1723 goto out;
1724 }
1725
1726
1727 for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
1728 sas_iounit_pg1->PhyData[i].Port =
1729 sas_iounit_pg0->PhyData[i].Port;
1730 sas_iounit_pg1->PhyData[i].PortFlags =
1731 (sas_iounit_pg0->PhyData[i].PortFlags &
1732 MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG);
1733 sas_iounit_pg1->PhyData[i].PhyFlags =
1734 (sas_iounit_pg0->PhyData[i].PhyFlags &
1735 (MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED +
1736 MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED));
1737 }
1738
1739 if (enable)
1740 sas_iounit_pg1->PhyData[phy->number].PhyFlags
1741 &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
1742 else
1743 sas_iounit_pg1->PhyData[phy->number].PhyFlags
1744 |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
1745
1746 mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz);
1747
1748
1749 if (enable)
1750 _transport_phy_reset(phy, 0);
1751
1752 out:
1753 kfree(sas_iounit_pg1);
1754 kfree(sas_iounit_pg0);
1755 return rc;
1756}
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766static int
1767_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
1768{
1769 struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
1770 Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
1771 Mpi2SasPhyPage0_t phy_pg0;
1772 Mpi2ConfigReply_t mpi_reply;
1773 u16 ioc_status;
1774 u16 sz;
1775 int i;
1776 int rc = 0;
1777 unsigned long flags;
1778
1779 spin_lock_irqsave(&ioc->sas_node_lock, flags);
1780 if (_transport_sas_node_find_by_sas_address(ioc,
1781 phy->identify.sas_address) == NULL) {
1782 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1783 return -EINVAL;
1784 }
1785 spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
1786
1787 if (!rates->minimum_linkrate)
1788 rates->minimum_linkrate = phy->minimum_linkrate;
1789 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw)
1790 rates->minimum_linkrate = phy->minimum_linkrate_hw;
1791
1792 if (!rates->maximum_linkrate)
1793 rates->maximum_linkrate = phy->maximum_linkrate;
1794 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw)
1795 rates->maximum_linkrate = phy->maximum_linkrate_hw;
1796
1797
1798 if (phy->identify.sas_address != ioc->sas_hba.sas_address) {
1799 phy->minimum_linkrate = rates->minimum_linkrate;
1800 phy->maximum_linkrate = rates->maximum_linkrate;
1801 return _transport_expander_phy_control(ioc, phy,
1802 SMP_PHY_CONTROL_LINK_RESET);
1803 }
1804
1805
1806
1807
1808 sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
1809 sizeof(Mpi2SasIOUnit1PhyData_t));
1810 sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
1811 if (!sas_iounit_pg1) {
1812 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1813 ioc->name, __FILE__, __LINE__, __func__);
1814 rc = -ENOMEM;
1815 goto out;
1816 }
1817 if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
1818 sas_iounit_pg1, sz))) {
1819 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1820 ioc->name, __FILE__, __LINE__, __func__);
1821 rc = -ENXIO;
1822 goto out;
1823 }
1824 ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
1825 MPI2_IOCSTATUS_MASK;
1826 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
1827 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1828 ioc->name, __FILE__, __LINE__, __func__);
1829 rc = -EIO;
1830 goto out;
1831 }
1832
1833 for (i = 0; i < ioc->sas_hba.num_phys; i++) {
1834 if (phy->number != i) {
1835 sas_iounit_pg1->PhyData[i].MaxMinLinkRate =
1836 (ioc->sas_hba.phy[i].phy->minimum_linkrate +
1837 (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4));
1838 } else {
1839 sas_iounit_pg1->PhyData[i].MaxMinLinkRate =
1840 (rates->minimum_linkrate +
1841 (rates->maximum_linkrate << 4));
1842 }
1843 }
1844
1845 if (mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
1846 sz)) {
1847 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
1848 ioc->name, __FILE__, __LINE__, __func__);
1849 rc = -ENXIO;
1850 goto out;
1851 }
1852
1853
1854 _transport_phy_reset(phy, 0);
1855
1856
1857 if (!mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
1858 phy->number)) {
1859 phy->minimum_linkrate = _transport_convert_phy_link_rate(
1860 phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
1861 phy->maximum_linkrate = _transport_convert_phy_link_rate(
1862 phy_pg0.ProgrammedLinkRate >> 4);
1863 phy->negotiated_linkrate = _transport_convert_phy_link_rate(
1864 phy_pg0.NegotiatedLinkRate &
1865 MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
1866 }
1867
1868 out:
1869 kfree(sas_iounit_pg1);
1870 return rc;
1871}
1872
1873static int
1874_transport_map_smp_buffer(struct device *dev, struct bsg_buffer *buf,
1875 dma_addr_t *dma_addr, size_t *dma_len, void **p)
1876{
1877
1878 if (buf->sg_cnt > 1) {
1879 *p = dma_alloc_coherent(dev, buf->payload_len, dma_addr,
1880 GFP_KERNEL);
1881 if (!*p)
1882 return -ENOMEM;
1883 *dma_len = buf->payload_len;
1884 } else {
1885 if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL))
1886 return -ENOMEM;
1887 *dma_addr = sg_dma_address(buf->sg_list);
1888 *dma_len = sg_dma_len(buf->sg_list);
1889 *p = NULL;
1890 }
1891
1892 return 0;
1893}
1894
1895static void
1896_transport_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf,
1897 dma_addr_t dma_addr, void *p)
1898{
1899 if (p)
1900 dma_free_coherent(dev, buf->payload_len, p, dma_addr);
1901 else
1902 dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL);
1903}
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915static void
1916_transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
1917 struct sas_rphy *rphy)
1918{
1919 struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
1920 Mpi2SmpPassthroughRequest_t *mpi_request;
1921 Mpi2SmpPassthroughReply_t *mpi_reply;
1922 int rc;
1923 u16 smid;
1924 u32 ioc_state;
1925 void *psge;
1926 dma_addr_t dma_addr_in;
1927 dma_addr_t dma_addr_out;
1928 void *addr_in = NULL;
1929 void *addr_out = NULL;
1930 size_t dma_len_in;
1931 size_t dma_len_out;
1932 u16 wait_state_count;
1933 unsigned int reslen = 0;
1934
1935 if (ioc->shost_recovery || ioc->pci_error_recovery) {
1936 pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
1937 __func__, ioc->name);
1938 rc = -EFAULT;
1939 goto out;
1940 }
1941
1942 rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex);
1943 if (rc)
1944 goto out;
1945
1946 if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
1947 pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", ioc->name,
1948 __func__);
1949 rc = -EAGAIN;
1950 goto out;
1951 }
1952 ioc->transport_cmds.status = MPT3_CMD_PENDING;
1953
1954 rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->request_payload,
1955 &dma_addr_out, &dma_len_out, &addr_out);
1956 if (rc)
1957 goto out;
1958 if (addr_out) {
1959 sg_copy_to_buffer(job->request_payload.sg_list,
1960 job->request_payload.sg_cnt, addr_out,
1961 job->request_payload.payload_len);
1962 }
1963
1964 rc = _transport_map_smp_buffer(&ioc->pdev->dev, &job->reply_payload,
1965 &dma_addr_in, &dma_len_in, &addr_in);
1966 if (rc)
1967 goto unmap_out;
1968
1969 wait_state_count = 0;
1970 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1971 while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
1972 if (wait_state_count++ == 10) {
1973 pr_err(MPT3SAS_FMT
1974 "%s: failed due to ioc not operational\n",
1975 ioc->name, __func__);
1976 rc = -EFAULT;
1977 goto unmap_in;
1978 }
1979 ssleep(1);
1980 ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
1981 pr_info(MPT3SAS_FMT
1982 "%s: waiting for operational state(count=%d)\n",
1983 ioc->name, __func__, wait_state_count);
1984 }
1985 if (wait_state_count)
1986 pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
1987 ioc->name, __func__);
1988
1989 smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
1990 if (!smid) {
1991 pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
1992 ioc->name, __func__);
1993 rc = -EAGAIN;
1994 goto unmap_in;
1995 }
1996
1997 rc = 0;
1998 mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
1999 ioc->transport_cmds.smid = smid;
2000
2001 memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
2002 mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
2003 mpi_request->PhysicalPort = 0xFF;
2004 mpi_request->SASAddress = (rphy) ?
2005 cpu_to_le64(rphy->identify.sas_address) :
2006 cpu_to_le64(ioc->sas_hba.sas_address);
2007 mpi_request->RequestDataLength = cpu_to_le16(dma_len_out - 4);
2008 psge = &mpi_request->SGL;
2009
2010 ioc->build_sg(ioc, psge, dma_addr_out, dma_len_out - 4, dma_addr_in,
2011 dma_len_in - 4);
2012
2013 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
2014 "%s - sending smp request\n", ioc->name, __func__));
2015
2016 init_completion(&ioc->transport_cmds.done);
2017 ioc->put_smid_default(ioc, smid);
2018 wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
2019
2020 if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
2021 pr_err(MPT3SAS_FMT "%s : timeout\n",
2022 __func__, ioc->name);
2023 _debug_dump_mf(mpi_request,
2024 sizeof(Mpi2SmpPassthroughRequest_t)/4);
2025 if (!(ioc->transport_cmds.status & MPT3_CMD_RESET)) {
2026 mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
2027 rc = -ETIMEDOUT;
2028 goto unmap_in;
2029 }
2030 }
2031
2032 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
2033 "%s - complete\n", ioc->name, __func__));
2034
2035 if (!(ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID)) {
2036 dtransportprintk(ioc, pr_info(MPT3SAS_FMT
2037 "%s - no reply\n", ioc->name, __func__));
2038 rc = -ENXIO;
2039 goto unmap_in;
2040 }
2041
2042 mpi_reply = ioc->transport_cmds.reply;
2043
2044 dtransportprintk(ioc,
2045 pr_info(MPT3SAS_FMT "%s - reply data transfer size(%d)\n",
2046 ioc->name, __func__,
2047 le16_to_cpu(mpi_reply->ResponseDataLength)));
2048
2049 memcpy(job->reply, mpi_reply, sizeof(*mpi_reply));
2050 job->reply_len = sizeof(*mpi_reply);
2051 reslen = le16_to_cpu(mpi_reply->ResponseDataLength);
2052
2053 if (addr_in) {
2054 sg_copy_to_buffer(job->reply_payload.sg_list,
2055 job->reply_payload.sg_cnt, addr_in,
2056 job->reply_payload.payload_len);
2057 }
2058
2059 rc = 0;
2060 unmap_in:
2061 _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->reply_payload,
2062 dma_addr_in, addr_in);
2063 unmap_out:
2064 _transport_unmap_smp_buffer(&ioc->pdev->dev, &job->request_payload,
2065 dma_addr_out, addr_out);
2066 out:
2067 ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
2068 mutex_unlock(&ioc->transport_cmds.mutex);
2069 bsg_job_done(job, rc, reslen);
2070}
2071
2072struct sas_function_template mpt3sas_transport_functions = {
2073 .get_linkerrors = _transport_get_linkerrors,
2074 .get_enclosure_identifier = _transport_get_enclosure_identifier,
2075 .get_bay_identifier = _transport_get_bay_identifier,
2076 .phy_reset = _transport_phy_reset,
2077 .phy_enable = _transport_phy_enable,
2078 .set_phy_speed = _transport_phy_speed,
2079 .smp_handler = _transport_smp_handler,
2080};
2081
2082struct scsi_transport_template *mpt3sas_transport_template;
2083
