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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Driver for Broadcom MPI3 Storage Controllers
4 *
5 * Copyright (C) 2017-2023 Broadcom Inc.
6 * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
7 *
8 */
9
10#include "mpi3mr.h"
11
12/**
13 * mpi3mr_post_transport_req - Issue transport requests and wait
14 * @mrioc: Adapter instance reference
15 * @request: Properly populated MPI3 request
16 * @request_sz: Size of the MPI3 request
17 * @reply: Pointer to return MPI3 reply
18 * @reply_sz: Size of the MPI3 reply buffer
19 * @timeout: Timeout in seconds
20 * @ioc_status: Pointer to return ioc status
21 *
22 * A generic function for posting MPI3 requests from the SAS
23 * transport layer that uses transport command infrastructure.
24 * This blocks for the completion of request for timeout seconds
25 * and if the request times out this function faults the
26 * controller with proper reason code.
27 *
28 * On successful completion of the request this function returns
29 * appropriate ioc status from the firmware back to the caller.
30 *
31 * Return: 0 on success, non-zero on failure.
32 */
33static int mpi3mr_post_transport_req(struct mpi3mr_ioc *mrioc, void *request,
34 u16 request_sz, void *reply, u16 reply_sz, int timeout,
35 u16 *ioc_status)
36{
37 int retval = 0;
38
39 mutex_lock(&mrioc->transport_cmds.mutex);
40 if (mrioc->transport_cmds.state & MPI3MR_CMD_PENDING) {
41 retval = -1;
42 ioc_err(mrioc, "sending transport request failed due to command in use\n");
43 mutex_unlock(&mrioc->transport_cmds.mutex);
44 goto out;
45 }
46 mrioc->transport_cmds.state = MPI3MR_CMD_PENDING;
47 mrioc->transport_cmds.is_waiting = 1;
48 mrioc->transport_cmds.callback = NULL;
49 mrioc->transport_cmds.ioc_status = 0;
50 mrioc->transport_cmds.ioc_loginfo = 0;
51
52 init_completion(&mrioc->transport_cmds.done);
53 dprint_cfg_info(mrioc, "posting transport request\n");
54 if (mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO)
55 dprint_dump(request, request_sz, "transport_req");
56 retval = mpi3mr_admin_request_post(mrioc, request, request_sz, 1);
57 if (retval) {
58 ioc_err(mrioc, "posting transport request failed\n");
59 goto out_unlock;
60 }
61 wait_for_completion_timeout(&mrioc->transport_cmds.done,
62 (timeout * HZ));
63 if (!(mrioc->transport_cmds.state & MPI3MR_CMD_COMPLETE)) {
64 mpi3mr_check_rh_fault_ioc(mrioc,
65 MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT);
66 ioc_err(mrioc, "transport request timed out\n");
67 retval = -1;
68 goto out_unlock;
69 }
70 *ioc_status = mrioc->transport_cmds.ioc_status &
71 MPI3_IOCSTATUS_STATUS_MASK;
72 if ((*ioc_status) != MPI3_IOCSTATUS_SUCCESS)
73 dprint_transport_err(mrioc,
74 "transport request returned with ioc_status(0x%04x), log_info(0x%08x)\n",
75 *ioc_status, mrioc->transport_cmds.ioc_loginfo);
76
77 if ((reply) && (mrioc->transport_cmds.state & MPI3MR_CMD_REPLY_VALID))
78 memcpy((u8 *)reply, mrioc->transport_cmds.reply, reply_sz);
79
80out_unlock:
81 mrioc->transport_cmds.state = MPI3MR_CMD_NOTUSED;
82 mutex_unlock(&mrioc->transport_cmds.mutex);
83
84out:
85 return retval;
86}
87
88/* report manufacture request structure */
89struct rep_manu_request {
90 u8 smp_frame_type;
91 u8 function;
92 u8 reserved;
93 u8 request_length;
94};
95
96/* report manufacture reply structure */
97struct rep_manu_reply {
98 u8 smp_frame_type; /* 0x41 */
99 u8 function; /* 0x01 */
100 u8 function_result;
101 u8 response_length;
102 u16 expander_change_count;
103 u8 reserved0[2];
104 u8 sas_format;
105 u8 reserved2[3];
106 u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
107 u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
108 u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
109 u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
110 u16 component_id;
111 u8 component_revision_id;
112 u8 reserved3;
113 u8 vendor_specific[8];
114};
115
116/**
117 * mpi3mr_report_manufacture - obtain SMP report_manufacture
118 * @mrioc: Adapter instance reference
119 * @sas_address: SAS address of the expander device
120 * @edev: SAS transport layer sas_expander_device object
121 * @port_id: ID of the HBA port
122 *
123 * Fills in the sas_expander_device with manufacturing info.
124 *
125 * Return: 0 for success, non-zero for failure.
126 */
127static int mpi3mr_report_manufacture(struct mpi3mr_ioc *mrioc,
128 u64 sas_address, struct sas_expander_device *edev, u8 port_id)
129{
130 struct mpi3_smp_passthrough_request mpi_request;
131 struct mpi3_smp_passthrough_reply mpi_reply;
132 struct rep_manu_reply *manufacture_reply;
133 struct rep_manu_request *manufacture_request;
134 int rc = 0;
135 void *psge;
136 void *data_out = NULL;
137 dma_addr_t data_out_dma;
138 dma_addr_t data_in_dma;
139 size_t data_in_sz;
140 size_t data_out_sz;
141 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
142 u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
143 u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
144 u16 ioc_status;
145 u8 *tmp;
146
147 if (mrioc->reset_in_progress) {
148 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
149 return -EFAULT;
150 }
151
152 data_out_sz = sizeof(struct rep_manu_request);
153 data_in_sz = sizeof(struct rep_manu_reply);
154 data_out = dma_alloc_coherent(&mrioc->pdev->dev,
155 data_out_sz + data_in_sz, &data_out_dma, GFP_KERNEL);
156 if (!data_out) {
157 rc = -ENOMEM;
158 goto out;
159 }
160
161 data_in_dma = data_out_dma + data_out_sz;
162 manufacture_reply = data_out + data_out_sz;
163
164 manufacture_request = data_out;
165 manufacture_request->smp_frame_type = 0x40;
166 manufacture_request->function = 1;
167 manufacture_request->reserved = 0;
168 manufacture_request->request_length = 0;
169
170 memset(&mpi_request, 0, request_sz);
171 memset(&mpi_reply, 0, reply_sz);
172 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
173 mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
174 mpi_request.io_unit_port = (u8) port_id;
175 mpi_request.sas_address = cpu_to_le64(sas_address);
176
177 psge = &mpi_request.request_sge;
178 mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
179
180 psge = &mpi_request.response_sge;
181 mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
182
183 dprint_transport_info(mrioc,
184 "sending report manufacturer SMP request to sas_address(0x%016llx), port(%d)\n",
185 (unsigned long long)sas_address, port_id);
186
187 rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
188 &mpi_reply, reply_sz,
189 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
190 if (rc)
191 goto out;
192
193 dprint_transport_info(mrioc,
194 "report manufacturer SMP request completed with ioc_status(0x%04x)\n",
195 ioc_status);
196
197 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
198 rc = -EINVAL;
199 goto out;
200 }
201
202 dprint_transport_info(mrioc,
203 "report manufacturer - reply data transfer size(%d)\n",
204 le16_to_cpu(mpi_reply.response_data_length));
205
206 if (le16_to_cpu(mpi_reply.response_data_length) !=
207 sizeof(struct rep_manu_reply)) {
208 rc = -EINVAL;
209 goto out;
210 }
211
212 strscpy(edev->vendor_id, manufacture_reply->vendor_id,
213 SAS_EXPANDER_VENDOR_ID_LEN);
214 strscpy(edev->product_id, manufacture_reply->product_id,
215 SAS_EXPANDER_PRODUCT_ID_LEN);
216 strscpy(edev->product_rev, manufacture_reply->product_rev,
217 SAS_EXPANDER_PRODUCT_REV_LEN);
218 edev->level = manufacture_reply->sas_format & 1;
219 if (edev->level) {
220 strscpy(edev->component_vendor_id,
221 manufacture_reply->component_vendor_id,
222 SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
223 tmp = (u8 *)&manufacture_reply->component_id;
224 edev->component_id = tmp[0] << 8 | tmp[1];
225 edev->component_revision_id =
226 manufacture_reply->component_revision_id;
227 }
228
229out:
230 if (data_out)
231 dma_free_coherent(&mrioc->pdev->dev, data_out_sz + data_in_sz,
232 data_out, data_out_dma);
233
234 return rc;
235}
236
237/**
238 * __mpi3mr_expander_find_by_handle - expander search by handle
239 * @mrioc: Adapter instance reference
240 * @handle: Firmware device handle of the expander
241 *
242 * Context: The caller should acquire sas_node_lock
243 *
244 * This searches for expander device based on handle, then
245 * returns the sas_node object.
246 *
247 * Return: Expander sas_node object reference or NULL
248 */
249struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
250 *mrioc, u16 handle)
251{
252 struct mpi3mr_sas_node *sas_expander, *r;
253
254 r = NULL;
255 list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
256 if (sas_expander->handle != handle)
257 continue;
258 r = sas_expander;
259 goto out;
260 }
261 out:
262 return r;
263}
264
265/**
266 * mpi3mr_is_expander_device - if device is an expander
267 * @device_info: Bitfield providing information about the device
268 *
269 * Return: 1 if the device is expander device, else 0.
270 */
271u8 mpi3mr_is_expander_device(u16 device_info)
272{
273 if ((device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) ==
274 MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER)
275 return 1;
276 else
277 return 0;
278}
279
280/**
281 * mpi3mr_get_sas_address - retrieve sas_address for handle
282 * @mrioc: Adapter instance reference
283 * @handle: Firmware device handle
284 * @sas_address: Address to hold sas address
285 *
286 * This function issues device page0 read for a given device
287 * handle and gets the SAS address and return it back
288 *
289 * Return: 0 for success, non-zero for failure
290 */
291static int mpi3mr_get_sas_address(struct mpi3mr_ioc *mrioc, u16 handle,
292 u64 *sas_address)
293{
294 struct mpi3_device_page0 dev_pg0;
295 u16 ioc_status;
296 struct mpi3_device0_sas_sata_format *sasinf;
297
298 *sas_address = 0;
299
300 if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
301 sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
302 handle))) {
303 ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
304 return -ENXIO;
305 }
306
307 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
308 ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
309 handle, ioc_status, __FILE__, __LINE__, __func__);
310 return -ENXIO;
311 }
312
313 if (le16_to_cpu(dev_pg0.flags) &
314 MPI3_DEVICE0_FLAGS_CONTROLLER_DEV_HANDLE)
315 *sas_address = mrioc->sas_hba.sas_address;
316 else if (dev_pg0.device_form == MPI3_DEVICE_DEVFORM_SAS_SATA) {
317 sasinf = &dev_pg0.device_specific.sas_sata_format;
318 *sas_address = le64_to_cpu(sasinf->sas_address);
319 } else {
320 ioc_err(mrioc, "%s: device_form(%d) is not SAS_SATA\n",
321 __func__, dev_pg0.device_form);
322 return -ENXIO;
323 }
324 return 0;
325}
326
327/**
328 * __mpi3mr_get_tgtdev_by_addr - target device search
329 * @mrioc: Adapter instance reference
330 * @sas_address: SAS address of the device
331 * @hba_port: HBA port entry
332 *
333 * This searches for target device from sas address and hba port
334 * pointer then return mpi3mr_tgt_dev object.
335 *
336 * Return: Valid tget_dev or NULL
337 */
338static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
339 u64 sas_address, struct mpi3mr_hba_port *hba_port)
340{
341 struct mpi3mr_tgt_dev *tgtdev;
342
343 assert_spin_locked(&mrioc->tgtdev_lock);
344
345 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
346 if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
347 (tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
348 && (tgtdev->dev_spec.sas_sata_inf.hba_port == hba_port))
349 goto found_device;
350 return NULL;
351found_device:
352 mpi3mr_tgtdev_get(tgtdev);
353 return tgtdev;
354}
355
356/**
357 * mpi3mr_get_tgtdev_by_addr - target device search
358 * @mrioc: Adapter instance reference
359 * @sas_address: SAS address of the device
360 * @hba_port: HBA port entry
361 *
362 * This searches for target device from sas address and hba port
363 * pointer then return mpi3mr_tgt_dev object.
364 *
365 * Context: This function will acquire tgtdev_lock and will
366 * release before returning the mpi3mr_tgt_dev object.
367 *
368 * Return: Valid tget_dev or NULL
369 */
370static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
371 u64 sas_address, struct mpi3mr_hba_port *hba_port)
372{
373 struct mpi3mr_tgt_dev *tgtdev = NULL;
374 unsigned long flags;
375
376 if (!hba_port)
377 goto out;
378
379 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
380 tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc, sas_address, hba_port);
381 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
382
383out:
384 return tgtdev;
385}
386
387/**
388 * mpi3mr_remove_device_by_sas_address - remove the device
389 * @mrioc: Adapter instance reference
390 * @sas_address: SAS address of the device
391 * @hba_port: HBA port entry
392 *
393 * This searches for target device using sas address and hba
394 * port pointer then removes it from the OS.
395 *
396 * Return: None
397 */
398static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc,
399 u64 sas_address, struct mpi3mr_hba_port *hba_port)
400{
401 struct mpi3mr_tgt_dev *tgtdev = NULL;
402 unsigned long flags;
403 u8 was_on_tgtdev_list = 0;
404
405 if (!hba_port)
406 return;
407
408 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
409 tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc,
410 sas_address, hba_port);
411 if (tgtdev) {
412 if (!list_empty(&tgtdev->list)) {
413 list_del_init(&tgtdev->list);
414 was_on_tgtdev_list = 1;
415 mpi3mr_tgtdev_put(tgtdev);
416 }
417 }
418 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
419 if (was_on_tgtdev_list) {
420 if (tgtdev->host_exposed)
421 mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
422 mpi3mr_tgtdev_put(tgtdev);
423 }
424}
425
426/**
427 * __mpi3mr_get_tgtdev_by_addr_and_rphy - target device search
428 * @mrioc: Adapter instance reference
429 * @sas_address: SAS address of the device
430 * @rphy: SAS transport layer rphy object
431 *
432 * This searches for target device from sas address and rphy
433 * pointer then return mpi3mr_tgt_dev object.
434 *
435 * Return: Valid tget_dev or NULL
436 */
437struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy(
438 struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy)
439{
440 struct mpi3mr_tgt_dev *tgtdev;
441
442 assert_spin_locked(&mrioc->tgtdev_lock);
443
444 list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
445 if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
446 (tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
447 && (tgtdev->dev_spec.sas_sata_inf.rphy == rphy))
448 goto found_device;
449 return NULL;
450found_device:
451 mpi3mr_tgtdev_get(tgtdev);
452 return tgtdev;
453}
454
455/**
456 * mpi3mr_expander_find_by_sas_address - sas expander search
457 * @mrioc: Adapter instance reference
458 * @sas_address: SAS address of expander
459 * @hba_port: HBA port entry
460 *
461 * Return: A valid SAS expander node or NULL.
462 *
463 */
464static struct mpi3mr_sas_node *mpi3mr_expander_find_by_sas_address(
465 struct mpi3mr_ioc *mrioc, u64 sas_address,
466 struct mpi3mr_hba_port *hba_port)
467{
468 struct mpi3mr_sas_node *sas_expander, *r = NULL;
469
470 if (!hba_port)
471 goto out;
472
473 list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
474 if ((sas_expander->sas_address != sas_address) ||
475 (sas_expander->hba_port != hba_port))
476 continue;
477 r = sas_expander;
478 goto out;
479 }
480out:
481 return r;
482}
483
484/**
485 * __mpi3mr_sas_node_find_by_sas_address - sas node search
486 * @mrioc: Adapter instance reference
487 * @sas_address: SAS address of expander or sas host
488 * @hba_port: HBA port entry
489 * Context: Caller should acquire mrioc->sas_node_lock.
490 *
491 * If the SAS address indicates the device is direct attached to
492 * the controller (controller's SAS address) then the SAS node
493 * associated with the controller is returned back else the SAS
494 * address and hba port are used to identify the exact expander
495 * and the associated sas_node object is returned. If there is
496 * no match NULL is returned.
497 *
498 * Return: A valid SAS node or NULL.
499 *
500 */
501static struct mpi3mr_sas_node *__mpi3mr_sas_node_find_by_sas_address(
502 struct mpi3mr_ioc *mrioc, u64 sas_address,
503 struct mpi3mr_hba_port *hba_port)
504{
505
506 if (mrioc->sas_hba.sas_address == sas_address)
507 return &mrioc->sas_hba;
508 return mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
509 hba_port);
510}
511
512/**
513 * mpi3mr_parent_present - Is parent present for a phy
514 * @mrioc: Adapter instance reference
515 * @phy: SAS transport layer phy object
516 *
517 * Return: 0 if parent is present else non-zero
518 */
519static int mpi3mr_parent_present(struct mpi3mr_ioc *mrioc, struct sas_phy *phy)
520{
521 unsigned long flags;
522 struct mpi3mr_hba_port *hba_port = phy->hostdata;
523
524 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
525 if (__mpi3mr_sas_node_find_by_sas_address(mrioc,
526 phy->identify.sas_address,
527 hba_port) == NULL) {
528 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
529 return -1;
530 }
531 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
532 return 0;
533}
534
535/**
536 * mpi3mr_convert_phy_link_rate -
537 * @link_rate: link rate as defined in the MPI header
538 *
539 * Convert link_rate from mpi format into sas_transport layer
540 * form.
541 *
542 * Return: A valid SAS transport layer defined link rate
543 */
544static enum sas_linkrate mpi3mr_convert_phy_link_rate(u8 link_rate)
545{
546 enum sas_linkrate rc;
547
548 switch (link_rate) {
549 case MPI3_SAS_NEG_LINK_RATE_1_5:
550 rc = SAS_LINK_RATE_1_5_GBPS;
551 break;
552 case MPI3_SAS_NEG_LINK_RATE_3_0:
553 rc = SAS_LINK_RATE_3_0_GBPS;
554 break;
555 case MPI3_SAS_NEG_LINK_RATE_6_0:
556 rc = SAS_LINK_RATE_6_0_GBPS;
557 break;
558 case MPI3_SAS_NEG_LINK_RATE_12_0:
559 rc = SAS_LINK_RATE_12_0_GBPS;
560 break;
561 case MPI3_SAS_NEG_LINK_RATE_22_5:
562 rc = SAS_LINK_RATE_22_5_GBPS;
563 break;
564 case MPI3_SAS_NEG_LINK_RATE_PHY_DISABLED:
565 rc = SAS_PHY_DISABLED;
566 break;
567 case MPI3_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
568 rc = SAS_LINK_RATE_FAILED;
569 break;
570 case MPI3_SAS_NEG_LINK_RATE_PORT_SELECTOR:
571 rc = SAS_SATA_PORT_SELECTOR;
572 break;
573 case MPI3_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
574 rc = SAS_PHY_RESET_IN_PROGRESS;
575 break;
576 case MPI3_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
577 case MPI3_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
578 default:
579 rc = SAS_LINK_RATE_UNKNOWN;
580 break;
581 }
582 return rc;
583}
584
585/**
586 * mpi3mr_delete_sas_phy - Remove a single phy from port
587 * @mrioc: Adapter instance reference
588 * @mr_sas_port: Internal Port object
589 * @mr_sas_phy: Internal Phy object
590 *
591 * Return: None.
592 */
593static void mpi3mr_delete_sas_phy(struct mpi3mr_ioc *mrioc,
594 struct mpi3mr_sas_port *mr_sas_port,
595 struct mpi3mr_sas_phy *mr_sas_phy)
596{
597 u64 sas_address = mr_sas_port->remote_identify.sas_address;
598
599 dev_info(&mr_sas_phy->phy->dev,
600 "remove: sas_address(0x%016llx), phy(%d)\n",
601 (unsigned long long) sas_address, mr_sas_phy->phy_id);
602
603 list_del(&mr_sas_phy->port_siblings);
604 mr_sas_port->num_phys--;
605 mr_sas_port->phy_mask &= ~(1 << mr_sas_phy->phy_id);
606 if (mr_sas_port->lowest_phy == mr_sas_phy->phy_id)
607 mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
608 sas_port_delete_phy(mr_sas_port->port, mr_sas_phy->phy);
609 mr_sas_phy->phy_belongs_to_port = 0;
610}
611
612/**
613 * mpi3mr_add_sas_phy - Adding a single phy to a port
614 * @mrioc: Adapter instance reference
615 * @mr_sas_port: Internal Port object
616 * @mr_sas_phy: Internal Phy object
617 *
618 * Return: None.
619 */
620static void mpi3mr_add_sas_phy(struct mpi3mr_ioc *mrioc,
621 struct mpi3mr_sas_port *mr_sas_port,
622 struct mpi3mr_sas_phy *mr_sas_phy)
623{
624 u64 sas_address = mr_sas_port->remote_identify.sas_address;
625
626 dev_info(&mr_sas_phy->phy->dev,
627 "add: sas_address(0x%016llx), phy(%d)\n", (unsigned long long)
628 sas_address, mr_sas_phy->phy_id);
629
630 list_add_tail(&mr_sas_phy->port_siblings, &mr_sas_port->phy_list);
631 mr_sas_port->num_phys++;
632 mr_sas_port->phy_mask |= (1 << mr_sas_phy->phy_id);
633 if (mr_sas_phy->phy_id < mr_sas_port->lowest_phy)
634 mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
635 sas_port_add_phy(mr_sas_port->port, mr_sas_phy->phy);
636 mr_sas_phy->phy_belongs_to_port = 1;
637}
638
639/**
640 * mpi3mr_add_phy_to_an_existing_port - add phy to existing port
641 * @mrioc: Adapter instance reference
642 * @mr_sas_node: Internal sas node object (expander or host)
643 * @mr_sas_phy: Internal Phy object *
644 * @sas_address: SAS address of device/expander were phy needs
645 * to be added to
646 * @hba_port: HBA port entry
647 *
648 * Return: None.
649 */
650static void mpi3mr_add_phy_to_an_existing_port(struct mpi3mr_ioc *mrioc,
651 struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy,
652 u64 sas_address, struct mpi3mr_hba_port *hba_port)
653{
654 struct mpi3mr_sas_port *mr_sas_port;
655 struct mpi3mr_sas_phy *srch_phy;
656
657 if (mr_sas_phy->phy_belongs_to_port == 1)
658 return;
659
660 if (!hba_port)
661 return;
662
663 list_for_each_entry(mr_sas_port, &mr_sas_node->sas_port_list,
664 port_list) {
665 if (mr_sas_port->remote_identify.sas_address !=
666 sas_address)
667 continue;
668 if (mr_sas_port->hba_port != hba_port)
669 continue;
670 list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
671 port_siblings) {
672 if (srch_phy == mr_sas_phy)
673 return;
674 }
675 mpi3mr_add_sas_phy(mrioc, mr_sas_port, mr_sas_phy);
676 return;
677 }
678}
679
680/**
681 * mpi3mr_delete_sas_port - helper function to removing a port
682 * @mrioc: Adapter instance reference
683 * @mr_sas_port: Internal Port object
684 *
685 * Return: None.
686 */
687static void mpi3mr_delete_sas_port(struct mpi3mr_ioc *mrioc,
688 struct mpi3mr_sas_port *mr_sas_port)
689{
690 u64 sas_address = mr_sas_port->remote_identify.sas_address;
691 struct mpi3mr_hba_port *hba_port = mr_sas_port->hba_port;
692 enum sas_device_type device_type =
693 mr_sas_port->remote_identify.device_type;
694
695 dev_info(&mr_sas_port->port->dev,
696 "remove: sas_address(0x%016llx)\n",
697 (unsigned long long) sas_address);
698
699 if (device_type == SAS_END_DEVICE)
700 mpi3mr_remove_device_by_sas_address(mrioc, sas_address,
701 hba_port);
702
703 else if (device_type == SAS_EDGE_EXPANDER_DEVICE ||
704 device_type == SAS_FANOUT_EXPANDER_DEVICE)
705 mpi3mr_expander_remove(mrioc, sas_address, hba_port);
706}
707
708/**
709 * mpi3mr_del_phy_from_an_existing_port - del phy from a port
710 * @mrioc: Adapter instance reference
711 * @mr_sas_node: Internal sas node object (expander or host)
712 * @mr_sas_phy: Internal Phy object
713 *
714 * Return: None.
715 */
716static void mpi3mr_del_phy_from_an_existing_port(struct mpi3mr_ioc *mrioc,
717 struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy)
718{
719 struct mpi3mr_sas_port *mr_sas_port, *next;
720 struct mpi3mr_sas_phy *srch_phy;
721
722 if (mr_sas_phy->phy_belongs_to_port == 0)
723 return;
724
725 list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
726 port_list) {
727 list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
728 port_siblings) {
729 if (srch_phy != mr_sas_phy)
730 continue;
731 if ((mr_sas_port->num_phys == 1) &&
732 !mrioc->reset_in_progress)
733 mpi3mr_delete_sas_port(mrioc, mr_sas_port);
734 else
735 mpi3mr_delete_sas_phy(mrioc, mr_sas_port,
736 mr_sas_phy);
737 return;
738 }
739 }
740}
741
742/**
743 * mpi3mr_sas_port_sanity_check - sanity check while adding port
744 * @mrioc: Adapter instance reference
745 * @mr_sas_node: Internal sas node object (expander or host)
746 * @sas_address: SAS address of device/expander
747 * @hba_port: HBA port entry
748 *
749 * Verifies whether the Phys attached to a device with the given
750 * SAS address already belongs to an existing sas port if so
751 * will remove those phys from the sas port
752 *
753 * Return: None.
754 */
755static void mpi3mr_sas_port_sanity_check(struct mpi3mr_ioc *mrioc,
756 struct mpi3mr_sas_node *mr_sas_node, u64 sas_address,
757 struct mpi3mr_hba_port *hba_port)
758{
759 int i;
760
761 for (i = 0; i < mr_sas_node->num_phys; i++) {
762 if ((mr_sas_node->phy[i].remote_identify.sas_address !=
763 sas_address) || (mr_sas_node->phy[i].hba_port != hba_port))
764 continue;
765 if (mr_sas_node->phy[i].phy_belongs_to_port == 1)
766 mpi3mr_del_phy_from_an_existing_port(mrioc,
767 mr_sas_node, &mr_sas_node->phy[i]);
768 }
769}
770
771/**
772 * mpi3mr_set_identify - set identify for phys and end devices
773 * @mrioc: Adapter instance reference
774 * @handle: Firmware device handle
775 * @identify: SAS transport layer's identify info
776 *
777 * Populates sas identify info for a specific device.
778 *
779 * Return: 0 for success, non-zero for failure.
780 */
781static int mpi3mr_set_identify(struct mpi3mr_ioc *mrioc, u16 handle,
782 struct sas_identify *identify)
783{
784
785 struct mpi3_device_page0 device_pg0;
786 struct mpi3_device0_sas_sata_format *sasinf;
787 u16 device_info;
788 u16 ioc_status;
789
790 if (mrioc->reset_in_progress) {
791 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
792 return -EFAULT;
793 }
794
795 if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &device_pg0,
796 sizeof(device_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, handle))) {
797 ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
798 return -ENXIO;
799 }
800
801 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
802 ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
803 handle, ioc_status, __FILE__, __LINE__, __func__);
804 return -EIO;
805 }
806
807 memset(identify, 0, sizeof(struct sas_identify));
808 sasinf = &device_pg0.device_specific.sas_sata_format;
809 device_info = le16_to_cpu(sasinf->device_info);
810
811 /* sas_address */
812 identify->sas_address = le64_to_cpu(sasinf->sas_address);
813
814 /* phy number of the parent device this device is linked to */
815 identify->phy_identifier = sasinf->phy_num;
816
817 /* device_type */
818 switch (device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) {
819 case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_NO_DEVICE:
820 identify->device_type = SAS_PHY_UNUSED;
821 break;
822 case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE:
823 identify->device_type = SAS_END_DEVICE;
824 break;
825 case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER:
826 identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
827 break;
828 }
829
830 /* initiator_port_protocols */
831 if (device_info & MPI3_SAS_DEVICE_INFO_SSP_INITIATOR)
832 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
833 /* MPI3.0 doesn't have define for SATA INIT so setting both here*/
834 if (device_info & MPI3_SAS_DEVICE_INFO_STP_INITIATOR)
835 identify->initiator_port_protocols |= (SAS_PROTOCOL_STP |
836 SAS_PROTOCOL_SATA);
837 if (device_info & MPI3_SAS_DEVICE_INFO_SMP_INITIATOR)
838 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
839
840 /* target_port_protocols */
841 if (device_info & MPI3_SAS_DEVICE_INFO_SSP_TARGET)
842 identify->target_port_protocols |= SAS_PROTOCOL_SSP;
843 /* MPI3.0 doesn't have define for STP Target so setting both here*/
844 if (device_info & MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET)
845 identify->target_port_protocols |= (SAS_PROTOCOL_STP |
846 SAS_PROTOCOL_SATA);
847 if (device_info & MPI3_SAS_DEVICE_INFO_SMP_TARGET)
848 identify->target_port_protocols |= SAS_PROTOCOL_SMP;
849 return 0;
850}
851
852/**
853 * mpi3mr_add_host_phy - report sas_host phy to SAS transport
854 * @mrioc: Adapter instance reference
855 * @mr_sas_phy: Internal Phy object
856 * @phy_pg0: SAS phy page 0
857 * @parent_dev: Prent device class object
858 *
859 * Return: 0 for success, non-zero for failure.
860 */
861static int mpi3mr_add_host_phy(struct mpi3mr_ioc *mrioc,
862 struct mpi3mr_sas_phy *mr_sas_phy, struct mpi3_sas_phy_page0 phy_pg0,
863 struct device *parent_dev)
864{
865 struct sas_phy *phy;
866 int phy_index = mr_sas_phy->phy_id;
867
868
869 INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
870 phy = sas_phy_alloc(parent_dev, phy_index);
871 if (!phy) {
872 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
873 __FILE__, __LINE__, __func__);
874 return -1;
875 }
876 if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
877 &mr_sas_phy->identify))) {
878 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
879 __FILE__, __LINE__, __func__);
880 sas_phy_free(phy);
881 return -1;
882 }
883 phy->identify = mr_sas_phy->identify;
884 mr_sas_phy->attached_handle = le16_to_cpu(phy_pg0.attached_dev_handle);
885 if (mr_sas_phy->attached_handle)
886 mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
887 &mr_sas_phy->remote_identify);
888 phy->identify.phy_identifier = mr_sas_phy->phy_id;
889 phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
890 (phy_pg0.negotiated_link_rate &
891 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
892 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
893 phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
894 phy_pg0.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
895 phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
896 phy_pg0.hw_link_rate >> 4);
897 phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
898 phy_pg0.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
899 phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
900 phy_pg0.programmed_link_rate >> 4);
901 phy->hostdata = mr_sas_phy->hba_port;
902
903 if ((sas_phy_add(phy))) {
904 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
905 __FILE__, __LINE__, __func__);
906 sas_phy_free(phy);
907 return -1;
908 }
909 if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
910 dev_info(&phy->dev,
911 "add: handle(0x%04x), sas_address(0x%016llx)\n"
912 "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
913 mr_sas_phy->handle, (unsigned long long)
914 mr_sas_phy->identify.sas_address,
915 mr_sas_phy->attached_handle,
916 (unsigned long long)
917 mr_sas_phy->remote_identify.sas_address);
918 mr_sas_phy->phy = phy;
919 return 0;
920}
921
922/**
923 * mpi3mr_add_expander_phy - report expander phy to transport
924 * @mrioc: Adapter instance reference
925 * @mr_sas_phy: Internal Phy object
926 * @expander_pg1: SAS Expander page 1
927 * @parent_dev: Parent device class object
928 *
929 * Return: 0 for success, non-zero for failure.
930 */
931static int mpi3mr_add_expander_phy(struct mpi3mr_ioc *mrioc,
932 struct mpi3mr_sas_phy *mr_sas_phy,
933 struct mpi3_sas_expander_page1 expander_pg1,
934 struct device *parent_dev)
935{
936 struct sas_phy *phy;
937 int phy_index = mr_sas_phy->phy_id;
938
939 INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
940 phy = sas_phy_alloc(parent_dev, phy_index);
941 if (!phy) {
942 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
943 __FILE__, __LINE__, __func__);
944 return -1;
945 }
946 if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
947 &mr_sas_phy->identify))) {
948 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
949 __FILE__, __LINE__, __func__);
950 sas_phy_free(phy);
951 return -1;
952 }
953 phy->identify = mr_sas_phy->identify;
954 mr_sas_phy->attached_handle =
955 le16_to_cpu(expander_pg1.attached_dev_handle);
956 if (mr_sas_phy->attached_handle)
957 mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
958 &mr_sas_phy->remote_identify);
959 phy->identify.phy_identifier = mr_sas_phy->phy_id;
960 phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
961 (expander_pg1.negotiated_link_rate &
962 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
963 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
964 phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
965 expander_pg1.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
966 phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
967 expander_pg1.hw_link_rate >> 4);
968 phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
969 expander_pg1.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
970 phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
971 expander_pg1.programmed_link_rate >> 4);
972 phy->hostdata = mr_sas_phy->hba_port;
973
974 if ((sas_phy_add(phy))) {
975 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
976 __FILE__, __LINE__, __func__);
977 sas_phy_free(phy);
978 return -1;
979 }
980 if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
981 dev_info(&phy->dev,
982 "add: handle(0x%04x), sas_address(0x%016llx)\n"
983 "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
984 mr_sas_phy->handle, (unsigned long long)
985 mr_sas_phy->identify.sas_address,
986 mr_sas_phy->attached_handle,
987 (unsigned long long)
988 mr_sas_phy->remote_identify.sas_address);
989 mr_sas_phy->phy = phy;
990 return 0;
991}
992
993/**
994 * mpi3mr_alloc_hba_port - alloc hba port object
995 * @mrioc: Adapter instance reference
996 * @port_id: Port number
997 *
998 * Alloc memory for hba port object.
999 */
1000static struct mpi3mr_hba_port *
1001mpi3mr_alloc_hba_port(struct mpi3mr_ioc *mrioc, u16 port_id)
1002{
1003 struct mpi3mr_hba_port *hba_port;
1004
1005 hba_port = kzalloc(sizeof(struct mpi3mr_hba_port),
1006 GFP_KERNEL);
1007 if (!hba_port)
1008 return NULL;
1009 hba_port->port_id = port_id;
1010 ioc_info(mrioc, "hba_port entry: %p, port: %d is added to hba_port list\n",
1011 hba_port, hba_port->port_id);
1012 list_add_tail(&hba_port->list, &mrioc->hba_port_table_list);
1013 return hba_port;
1014}
1015
1016/**
1017 * mpi3mr_get_hba_port_by_id - find hba port by id
1018 * @mrioc: Adapter instance reference
1019 * @port_id - Port ID to search
1020 *
1021 * Return: mpi3mr_hba_port reference for the matched port
1022 */
1023
1024struct mpi3mr_hba_port *mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc *mrioc,
1025 u8 port_id)
1026{
1027 struct mpi3mr_hba_port *port, *port_next;
1028
1029 list_for_each_entry_safe(port, port_next,
1030 &mrioc->hba_port_table_list, list) {
1031 if (port->port_id != port_id)
1032 continue;
1033 if (port->flags & MPI3MR_HBA_PORT_FLAG_DIRTY)
1034 continue;
1035 return port;
1036 }
1037
1038 return NULL;
1039}
1040
1041/**
1042 * mpi3mr_update_links - refreshing SAS phy link changes
1043 * @mrioc: Adapter instance reference
1044 * @sas_address_parent: SAS address of parent expander or host
1045 * @handle: Firmware device handle of attached device
1046 * @phy_number: Phy number
1047 * @link_rate: New link rate
1048 * @hba_port: HBA port entry
1049 *
1050 * Return: None.
1051 */
1052void mpi3mr_update_links(struct mpi3mr_ioc *mrioc,
1053 u64 sas_address_parent, u16 handle, u8 phy_number, u8 link_rate,
1054 struct mpi3mr_hba_port *hba_port)
1055{
1056 unsigned long flags;
1057 struct mpi3mr_sas_node *mr_sas_node;
1058 struct mpi3mr_sas_phy *mr_sas_phy;
1059
1060 if (mrioc->reset_in_progress)
1061 return;
1062
1063 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1064 mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
1065 sas_address_parent, hba_port);
1066 if (!mr_sas_node) {
1067 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1068 return;
1069 }
1070
1071 mr_sas_phy = &mr_sas_node->phy[phy_number];
1072 mr_sas_phy->attached_handle = handle;
1073 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1074 if (handle && (link_rate >= MPI3_SAS_NEG_LINK_RATE_1_5)) {
1075 mpi3mr_set_identify(mrioc, handle,
1076 &mr_sas_phy->remote_identify);
1077 mpi3mr_add_phy_to_an_existing_port(mrioc, mr_sas_node,
1078 mr_sas_phy, mr_sas_phy->remote_identify.sas_address,
1079 hba_port);
1080 } else
1081 memset(&mr_sas_phy->remote_identify, 0, sizeof(struct
1082 sas_identify));
1083
1084 if (mr_sas_phy->phy)
1085 mr_sas_phy->phy->negotiated_linkrate =
1086 mpi3mr_convert_phy_link_rate(link_rate);
1087
1088 if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
1089 dev_info(&mr_sas_phy->phy->dev,
1090 "refresh: parent sas_address(0x%016llx),\n"
1091 "\tlink_rate(0x%02x), phy(%d)\n"
1092 "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
1093 (unsigned long long)sas_address_parent,
1094 link_rate, phy_number, handle, (unsigned long long)
1095 mr_sas_phy->remote_identify.sas_address);
1096}
1097
1098/**
1099 * mpi3mr_sas_host_refresh - refreshing sas host object contents
1100 * @mrioc: Adapter instance reference
1101 *
1102 * This function refreshes the controllers phy information and
1103 * updates the SAS transport layer with updated information,
1104 * this is executed for each device addition or device info
1105 * change events
1106 *
1107 * Return: None.
1108 */
1109void mpi3mr_sas_host_refresh(struct mpi3mr_ioc *mrioc)
1110{
1111 int i;
1112 u8 link_rate;
1113 u16 sz, port_id, attached_handle;
1114 struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
1115
1116 dprint_transport_info(mrioc,
1117 "updating handles for sas_host(0x%016llx)\n",
1118 (unsigned long long)mrioc->sas_hba.sas_address);
1119
1120 sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
1121 (mrioc->sas_hba.num_phys *
1122 sizeof(struct mpi3_sas_io_unit0_phy_data));
1123 sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
1124 if (!sas_io_unit_pg0)
1125 return;
1126 if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
1127 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1128 __FILE__, __LINE__, __func__);
1129 goto out;
1130 }
1131
1132 mrioc->sas_hba.handle = 0;
1133 for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
1134 if (sas_io_unit_pg0->phy_data[i].phy_flags &
1135 (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
1136 MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
1137 continue;
1138 link_rate =
1139 sas_io_unit_pg0->phy_data[i].negotiated_link_rate >> 4;
1140 if (!mrioc->sas_hba.handle)
1141 mrioc->sas_hba.handle = le16_to_cpu(
1142 sas_io_unit_pg0->phy_data[i].controller_dev_handle);
1143 port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
1144 if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
1145 if (!mpi3mr_alloc_hba_port(mrioc, port_id))
1146 goto out;
1147
1148 mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
1149 attached_handle = le16_to_cpu(
1150 sas_io_unit_pg0->phy_data[i].attached_dev_handle);
1151 if (attached_handle && link_rate < MPI3_SAS_NEG_LINK_RATE_1_5)
1152 link_rate = MPI3_SAS_NEG_LINK_RATE_1_5;
1153 mrioc->sas_hba.phy[i].hba_port =
1154 mpi3mr_get_hba_port_by_id(mrioc, port_id);
1155 mpi3mr_update_links(mrioc, mrioc->sas_hba.sas_address,
1156 attached_handle, i, link_rate,
1157 mrioc->sas_hba.phy[i].hba_port);
1158 }
1159 out:
1160 kfree(sas_io_unit_pg0);
1161}
1162
1163/**
1164 * mpi3mr_sas_host_add - create sas host object
1165 * @mrioc: Adapter instance reference
1166 *
1167 * This function creates the controllers phy information and
1168 * updates the SAS transport layer with updated information,
1169 * this is executed for first device addition or device info
1170 * change event.
1171 *
1172 * Return: None.
1173 */
1174void mpi3mr_sas_host_add(struct mpi3mr_ioc *mrioc)
1175{
1176 int i;
1177 u16 sz, num_phys = 1, port_id, ioc_status;
1178 struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
1179 struct mpi3_sas_phy_page0 phy_pg0;
1180 struct mpi3_device_page0 dev_pg0;
1181 struct mpi3_enclosure_page0 encl_pg0;
1182 struct mpi3_device0_sas_sata_format *sasinf;
1183
1184 sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
1185 (num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
1186 sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
1187 if (!sas_io_unit_pg0)
1188 return;
1189
1190 if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
1191 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1192 __FILE__, __LINE__, __func__);
1193 goto out;
1194 }
1195 num_phys = sas_io_unit_pg0->num_phys;
1196 kfree(sas_io_unit_pg0);
1197
1198 mrioc->sas_hba.host_node = 1;
1199 INIT_LIST_HEAD(&mrioc->sas_hba.sas_port_list);
1200 mrioc->sas_hba.parent_dev = &mrioc->shost->shost_gendev;
1201 mrioc->sas_hba.phy = kcalloc(num_phys,
1202 sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
1203 if (!mrioc->sas_hba.phy)
1204 return;
1205
1206 mrioc->sas_hba.num_phys = num_phys;
1207
1208 sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
1209 (num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
1210 sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
1211 if (!sas_io_unit_pg0)
1212 return;
1213
1214 if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
1215 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1216 __FILE__, __LINE__, __func__);
1217 goto out;
1218 }
1219
1220 mrioc->sas_hba.handle = 0;
1221 for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
1222 if (sas_io_unit_pg0->phy_data[i].phy_flags &
1223 (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
1224 MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
1225 continue;
1226 if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
1227 sizeof(struct mpi3_sas_phy_page0),
1228 MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, i)) {
1229 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1230 __FILE__, __LINE__, __func__);
1231 goto out;
1232 }
1233 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1234 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1235 __FILE__, __LINE__, __func__);
1236 goto out;
1237 }
1238
1239 if (!mrioc->sas_hba.handle)
1240 mrioc->sas_hba.handle = le16_to_cpu(
1241 sas_io_unit_pg0->phy_data[i].controller_dev_handle);
1242 port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
1243
1244 if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
1245 if (!mpi3mr_alloc_hba_port(mrioc, port_id))
1246 goto out;
1247
1248 mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
1249 mrioc->sas_hba.phy[i].phy_id = i;
1250 mrioc->sas_hba.phy[i].hba_port =
1251 mpi3mr_get_hba_port_by_id(mrioc, port_id);
1252 mpi3mr_add_host_phy(mrioc, &mrioc->sas_hba.phy[i],
1253 phy_pg0, mrioc->sas_hba.parent_dev);
1254 }
1255 if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
1256 sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
1257 mrioc->sas_hba.handle))) {
1258 ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
1259 goto out;
1260 }
1261 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1262 ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
1263 mrioc->sas_hba.handle, ioc_status, __FILE__, __LINE__,
1264 __func__);
1265 goto out;
1266 }
1267 mrioc->sas_hba.enclosure_handle =
1268 le16_to_cpu(dev_pg0.enclosure_handle);
1269 sasinf = &dev_pg0.device_specific.sas_sata_format;
1270 mrioc->sas_hba.sas_address =
1271 le64_to_cpu(sasinf->sas_address);
1272 ioc_info(mrioc,
1273 "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
1274 mrioc->sas_hba.handle,
1275 (unsigned long long) mrioc->sas_hba.sas_address,
1276 mrioc->sas_hba.num_phys);
1277
1278 if (mrioc->sas_hba.enclosure_handle) {
1279 if (!(mpi3mr_cfg_get_enclosure_pg0(mrioc, &ioc_status,
1280 &encl_pg0, sizeof(encl_pg0),
1281 MPI3_ENCLOS_PGAD_FORM_HANDLE,
1282 mrioc->sas_hba.enclosure_handle)) &&
1283 (ioc_status == MPI3_IOCSTATUS_SUCCESS))
1284 mrioc->sas_hba.enclosure_logical_id =
1285 le64_to_cpu(encl_pg0.enclosure_logical_id);
1286 }
1287
1288out:
1289 kfree(sas_io_unit_pg0);
1290}
1291
1292/**
1293 * mpi3mr_sas_port_add - Expose the SAS device to the SAS TL
1294 * @mrioc: Adapter instance reference
1295 * @handle: Firmware device handle of the attached device
1296 * @sas_address_parent: sas address of parent expander or host
1297 * @hba_port: HBA port entry
1298 *
1299 * This function creates a new sas port object for the given end
1300 * device matching sas address and hba_port and adds it to the
1301 * sas_node's sas_port_list and expose the attached sas device
1302 * to the SAS transport layer through sas_rphy_add.
1303 *
1304 * Returns a valid mpi3mr_sas_port reference or NULL.
1305 */
1306static struct mpi3mr_sas_port *mpi3mr_sas_port_add(struct mpi3mr_ioc *mrioc,
1307 u16 handle, u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
1308{
1309 struct mpi3mr_sas_phy *mr_sas_phy, *next;
1310 struct mpi3mr_sas_port *mr_sas_port;
1311 unsigned long flags;
1312 struct mpi3mr_sas_node *mr_sas_node;
1313 struct sas_rphy *rphy;
1314 struct mpi3mr_tgt_dev *tgtdev = NULL;
1315 int i;
1316 struct sas_port *port;
1317
1318 if (!hba_port) {
1319 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1320 __FILE__, __LINE__, __func__);
1321 return NULL;
1322 }
1323
1324 mr_sas_port = kzalloc(sizeof(struct mpi3mr_sas_port), GFP_KERNEL);
1325 if (!mr_sas_port)
1326 return NULL;
1327
1328 INIT_LIST_HEAD(&mr_sas_port->port_list);
1329 INIT_LIST_HEAD(&mr_sas_port->phy_list);
1330 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1331 mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
1332 sas_address_parent, hba_port);
1333 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1334
1335 if (!mr_sas_node) {
1336 ioc_err(mrioc, "%s:could not find parent sas_address(0x%016llx)!\n",
1337 __func__, (unsigned long long)sas_address_parent);
1338 goto out_fail;
1339 }
1340
1341 if ((mpi3mr_set_identify(mrioc, handle,
1342 &mr_sas_port->remote_identify))) {
1343 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1344 __FILE__, __LINE__, __func__);
1345 goto out_fail;
1346 }
1347
1348 if (mr_sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
1349 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1350 __FILE__, __LINE__, __func__);
1351 goto out_fail;
1352 }
1353
1354 mr_sas_port->hba_port = hba_port;
1355 mpi3mr_sas_port_sanity_check(mrioc, mr_sas_node,
1356 mr_sas_port->remote_identify.sas_address, hba_port);
1357
1358 for (i = 0; i < mr_sas_node->num_phys; i++) {
1359 if ((mr_sas_node->phy[i].remote_identify.sas_address !=
1360 mr_sas_port->remote_identify.sas_address) ||
1361 (mr_sas_node->phy[i].hba_port != hba_port))
1362 continue;
1363 list_add_tail(&mr_sas_node->phy[i].port_siblings,
1364 &mr_sas_port->phy_list);
1365 mr_sas_port->num_phys++;
1366 mr_sas_port->phy_mask |= (1 << i);
1367 }
1368
1369 if (!mr_sas_port->num_phys) {
1370 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1371 __FILE__, __LINE__, __func__);
1372 goto out_fail;
1373 }
1374
1375 mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
1376
1377 if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
1378 tgtdev = mpi3mr_get_tgtdev_by_addr(mrioc,
1379 mr_sas_port->remote_identify.sas_address,
1380 mr_sas_port->hba_port);
1381
1382 if (!tgtdev) {
1383 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1384 __FILE__, __LINE__, __func__);
1385 goto out_fail;
1386 }
1387 tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 1;
1388 }
1389
1390 if (!mr_sas_node->parent_dev) {
1391 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1392 __FILE__, __LINE__, __func__);
1393 goto out_fail;
1394 }
1395
1396 port = sas_port_alloc_num(mr_sas_node->parent_dev);
1397 if ((sas_port_add(port))) {
1398 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1399 __FILE__, __LINE__, __func__);
1400 goto out_fail;
1401 }
1402
1403 list_for_each_entry(mr_sas_phy, &mr_sas_port->phy_list,
1404 port_siblings) {
1405 if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
1406 dev_info(&port->dev,
1407 "add: handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
1408 handle, (unsigned long long)
1409 mr_sas_port->remote_identify.sas_address,
1410 mr_sas_phy->phy_id);
1411 sas_port_add_phy(port, mr_sas_phy->phy);
1412 mr_sas_phy->phy_belongs_to_port = 1;
1413 mr_sas_phy->hba_port = hba_port;
1414 }
1415
1416 mr_sas_port->port = port;
1417 if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
1418 rphy = sas_end_device_alloc(port);
1419 tgtdev->dev_spec.sas_sata_inf.rphy = rphy;
1420 } else {
1421 rphy = sas_expander_alloc(port,
1422 mr_sas_port->remote_identify.device_type);
1423 }
1424 rphy->identify = mr_sas_port->remote_identify;
1425
1426 if (mrioc->current_event)
1427 mrioc->current_event->pending_at_sml = 1;
1428
1429 if ((sas_rphy_add(rphy))) {
1430 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1431 __FILE__, __LINE__, __func__);
1432 }
1433 if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
1434 tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 0;
1435 tgtdev->dev_spec.sas_sata_inf.sas_transport_attached = 1;
1436 mpi3mr_tgtdev_put(tgtdev);
1437 }
1438
1439 dev_info(&rphy->dev,
1440 "%s: added: handle(0x%04x), sas_address(0x%016llx)\n",
1441 __func__, handle, (unsigned long long)
1442 mr_sas_port->remote_identify.sas_address);
1443
1444 mr_sas_port->rphy = rphy;
1445 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1446 list_add_tail(&mr_sas_port->port_list, &mr_sas_node->sas_port_list);
1447 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1448
1449 if (mrioc->current_event) {
1450 mrioc->current_event->pending_at_sml = 0;
1451 if (mrioc->current_event->discard)
1452 mpi3mr_print_device_event_notice(mrioc, true);
1453 }
1454
1455 /* fill in report manufacture */
1456 if (mr_sas_port->remote_identify.device_type ==
1457 SAS_EDGE_EXPANDER_DEVICE ||
1458 mr_sas_port->remote_identify.device_type ==
1459 SAS_FANOUT_EXPANDER_DEVICE)
1460 mpi3mr_report_manufacture(mrioc,
1461 mr_sas_port->remote_identify.sas_address,
1462 rphy_to_expander_device(rphy), hba_port->port_id);
1463
1464 return mr_sas_port;
1465
1466 out_fail:
1467 list_for_each_entry_safe(mr_sas_phy, next, &mr_sas_port->phy_list,
1468 port_siblings)
1469 list_del(&mr_sas_phy->port_siblings);
1470 kfree(mr_sas_port);
1471 return NULL;
1472}
1473
1474/**
1475 * mpi3mr_sas_port_remove - remove port from the list
1476 * @mrioc: Adapter instance reference
1477 * @sas_address: SAS address of attached device
1478 * @sas_address_parent: SAS address of parent expander or host
1479 * @hba_port: HBA port entry
1480 *
1481 * Removing object and freeing associated memory from the
1482 * sas_port_list.
1483 *
1484 * Return: None
1485 */
1486static void mpi3mr_sas_port_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
1487 u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
1488{
1489 int i;
1490 unsigned long flags;
1491 struct mpi3mr_sas_port *mr_sas_port, *next;
1492 struct mpi3mr_sas_node *mr_sas_node;
1493 u8 found = 0;
1494 struct mpi3mr_sas_phy *mr_sas_phy, *next_phy;
1495 struct mpi3mr_hba_port *srch_port, *hba_port_next = NULL;
1496
1497 if (!hba_port)
1498 return;
1499
1500 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1501 mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
1502 sas_address_parent, hba_port);
1503 if (!mr_sas_node) {
1504 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1505 return;
1506 }
1507 list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
1508 port_list) {
1509 if (mr_sas_port->remote_identify.sas_address != sas_address)
1510 continue;
1511 if (mr_sas_port->hba_port != hba_port)
1512 continue;
1513 found = 1;
1514 list_del(&mr_sas_port->port_list);
1515 goto out;
1516 }
1517
1518 out:
1519 if (!found) {
1520 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1521 return;
1522 }
1523
1524 if (mr_sas_node->host_node) {
1525 list_for_each_entry_safe(srch_port, hba_port_next,
1526 &mrioc->hba_port_table_list, list) {
1527 if (srch_port != hba_port)
1528 continue;
1529 ioc_info(mrioc,
1530 "removing hba_port entry: %p port: %d from hba_port list\n",
1531 srch_port, srch_port->port_id);
1532 list_del(&hba_port->list);
1533 kfree(hba_port);
1534 break;
1535 }
1536 }
1537
1538 for (i = 0; i < mr_sas_node->num_phys; i++) {
1539 if (mr_sas_node->phy[i].remote_identify.sas_address ==
1540 sas_address)
1541 memset(&mr_sas_node->phy[i].remote_identify, 0,
1542 sizeof(struct sas_identify));
1543 }
1544
1545 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1546
1547 if (mrioc->current_event)
1548 mrioc->current_event->pending_at_sml = 1;
1549
1550 list_for_each_entry_safe(mr_sas_phy, next_phy,
1551 &mr_sas_port->phy_list, port_siblings) {
1552 if ((!mrioc->stop_drv_processing) &&
1553 (mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
1554 dev_info(&mr_sas_port->port->dev,
1555 "remove: sas_address(0x%016llx), phy(%d)\n",
1556 (unsigned long long)
1557 mr_sas_port->remote_identify.sas_address,
1558 mr_sas_phy->phy_id);
1559 mr_sas_phy->phy_belongs_to_port = 0;
1560 if (!mrioc->stop_drv_processing)
1561 sas_port_delete_phy(mr_sas_port->port,
1562 mr_sas_phy->phy);
1563 list_del(&mr_sas_phy->port_siblings);
1564 }
1565 if (!mrioc->stop_drv_processing)
1566 sas_port_delete(mr_sas_port->port);
1567 ioc_info(mrioc, "%s: removed sas_address(0x%016llx)\n",
1568 __func__, (unsigned long long)sas_address);
1569
1570 if (mrioc->current_event) {
1571 mrioc->current_event->pending_at_sml = 0;
1572 if (mrioc->current_event->discard)
1573 mpi3mr_print_device_event_notice(mrioc, false);
1574 }
1575
1576 kfree(mr_sas_port);
1577}
1578
1579/**
1580 * struct host_port - host port details
1581 * @sas_address: SAS Address of the attached device
1582 * @phy_mask: phy mask of host port
1583 * @handle: Device Handle of attached device
1584 * @iounit_port_id: port ID
1585 * @used: host port is already matched with sas port from sas_port_list
1586 * @lowest_phy: lowest phy ID of host port
1587 */
1588struct host_port {
1589 u64 sas_address;
1590 u64 phy_mask;
1591 u16 handle;
1592 u8 iounit_port_id;
1593 u8 used;
1594 u8 lowest_phy;
1595};
1596
1597/**
1598 * mpi3mr_update_mr_sas_port - update sas port objects during reset
1599 * @mrioc: Adapter instance reference
1600 * @h_port: host_port object
1601 * @mr_sas_port: sas_port objects which needs to be updated
1602 *
1603 * Update the port ID of sas port object. Also add the phys if new phys got
1604 * added to current sas port and remove the phys if some phys are moved
1605 * out of the current sas port.
1606 *
1607 * Return: Nothing.
1608 */
1609static void
1610mpi3mr_update_mr_sas_port(struct mpi3mr_ioc *mrioc, struct host_port *h_port,
1611 struct mpi3mr_sas_port *mr_sas_port)
1612{
1613 struct mpi3mr_sas_phy *mr_sas_phy;
1614 u64 phy_mask_xor;
1615 u64 phys_to_be_added, phys_to_be_removed;
1616 int i;
1617
1618 h_port->used = 1;
1619 mr_sas_port->marked_responding = 1;
1620
1621 dev_info(&mr_sas_port->port->dev,
1622 "sas_address(0x%016llx), old: port_id %d phy_mask 0x%llx, new: port_id %d phy_mask:0x%llx\n",
1623 mr_sas_port->remote_identify.sas_address,
1624 mr_sas_port->hba_port->port_id, mr_sas_port->phy_mask,
1625 h_port->iounit_port_id, h_port->phy_mask);
1626
1627 mr_sas_port->hba_port->port_id = h_port->iounit_port_id;
1628 mr_sas_port->hba_port->flags &= ~MPI3MR_HBA_PORT_FLAG_DIRTY;
1629
1630 /* Get the newly added phys bit map & removed phys bit map */
1631 phy_mask_xor = mr_sas_port->phy_mask ^ h_port->phy_mask;
1632 phys_to_be_added = h_port->phy_mask & phy_mask_xor;
1633 phys_to_be_removed = mr_sas_port->phy_mask & phy_mask_xor;
1634
1635 /*
1636 * Register these new phys to current mr_sas_port's port.
1637 * if these phys are previously registered with another port
1638 * then delete these phys from that port first.
1639 */
1640 for_each_set_bit(i, (ulong *) &phys_to_be_added, BITS_PER_TYPE(u64)) {
1641 mr_sas_phy = &mrioc->sas_hba.phy[i];
1642 if (mr_sas_phy->phy_belongs_to_port)
1643 mpi3mr_del_phy_from_an_existing_port(mrioc,
1644 &mrioc->sas_hba, mr_sas_phy);
1645 mpi3mr_add_phy_to_an_existing_port(mrioc,
1646 &mrioc->sas_hba, mr_sas_phy,
1647 mr_sas_port->remote_identify.sas_address,
1648 mr_sas_port->hba_port);
1649 }
1650
1651 /* Delete the phys which are not part of current mr_sas_port's port. */
1652 for_each_set_bit(i, (ulong *) &phys_to_be_removed, BITS_PER_TYPE(u64)) {
1653 mr_sas_phy = &mrioc->sas_hba.phy[i];
1654 if (mr_sas_phy->phy_belongs_to_port)
1655 mpi3mr_del_phy_from_an_existing_port(mrioc,
1656 &mrioc->sas_hba, mr_sas_phy);
1657 }
1658}
1659
1660/**
1661 * mpi3mr_refresh_sas_ports - update host's sas ports during reset
1662 * @mrioc: Adapter instance reference
1663 *
1664 * Update the host's sas ports during reset by checking whether
1665 * sas ports are still intact or not. Add/remove phys if any hba
1666 * phys are (moved in)/(moved out) of sas port. Also update
1667 * io_unit_port if it got changed during reset.
1668 *
1669 * Return: Nothing.
1670 */
1671void
1672mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc)
1673{
1674 struct host_port *h_port = NULL;
1675 int i, j, found, host_port_count = 0, port_idx;
1676 u16 sz, attached_handle, ioc_status;
1677 struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
1678 struct mpi3_device_page0 dev_pg0;
1679 struct mpi3_device0_sas_sata_format *sasinf;
1680 struct mpi3mr_sas_port *mr_sas_port;
1681
1682 sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
1683 (mrioc->sas_hba.num_phys *
1684 sizeof(struct mpi3_sas_io_unit0_phy_data));
1685 sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
1686 if (!sas_io_unit_pg0)
1687 return;
1688 h_port = kcalloc(64, sizeof(struct host_port), GFP_KERNEL);
1689 if (!h_port)
1690 goto out;
1691
1692 if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
1693 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1694 __FILE__, __LINE__, __func__);
1695 goto out;
1696 }
1697
1698 /* Create a new expander port table */
1699 for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
1700 attached_handle = le16_to_cpu(
1701 sas_io_unit_pg0->phy_data[i].attached_dev_handle);
1702 if (!attached_handle)
1703 continue;
1704 found = 0;
1705 for (j = 0; j < host_port_count; j++) {
1706 if (h_port[j].handle == attached_handle) {
1707 h_port[j].phy_mask |= (1 << i);
1708 found = 1;
1709 break;
1710 }
1711 }
1712 if (found)
1713 continue;
1714 if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
1715 sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
1716 attached_handle))) {
1717 dprint_reset(mrioc,
1718 "failed to read dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
1719 attached_handle, __FILE__, __LINE__, __func__);
1720 continue;
1721 }
1722 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1723 dprint_reset(mrioc,
1724 "ioc_status(0x%x) while reading dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
1725 ioc_status, attached_handle,
1726 __FILE__, __LINE__, __func__);
1727 continue;
1728 }
1729 sasinf = &dev_pg0.device_specific.sas_sata_format;
1730
1731 port_idx = host_port_count;
1732 h_port[port_idx].sas_address = le64_to_cpu(sasinf->sas_address);
1733 h_port[port_idx].handle = attached_handle;
1734 h_port[port_idx].phy_mask = (1 << i);
1735 h_port[port_idx].iounit_port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
1736 h_port[port_idx].lowest_phy = sasinf->phy_num;
1737 h_port[port_idx].used = 0;
1738 host_port_count++;
1739 }
1740
1741 if (!host_port_count)
1742 goto out;
1743
1744 if (mrioc->logging_level & MPI3_DEBUG_RESET) {
1745 ioc_info(mrioc, "Host port details before reset\n");
1746 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1747 port_list) {
1748 ioc_info(mrioc,
1749 "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%llx), lowest phy id:%d\n",
1750 mr_sas_port->hba_port->port_id,
1751 mr_sas_port->remote_identify.sas_address,
1752 mr_sas_port->phy_mask, mr_sas_port->lowest_phy);
1753 }
1754 mr_sas_port = NULL;
1755 ioc_info(mrioc, "Host port details after reset\n");
1756 for (i = 0; i < host_port_count; i++) {
1757 ioc_info(mrioc,
1758 "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%llx), lowest phy id:%d\n",
1759 h_port[i].iounit_port_id, h_port[i].sas_address,
1760 h_port[i].phy_mask, h_port[i].lowest_phy);
1761 }
1762 }
1763
1764 /* mark all host sas port entries as dirty */
1765 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1766 port_list) {
1767 mr_sas_port->marked_responding = 0;
1768 mr_sas_port->hba_port->flags |= MPI3MR_HBA_PORT_FLAG_DIRTY;
1769 }
1770
1771 /* First check for matching lowest phy */
1772 for (i = 0; i < host_port_count; i++) {
1773 mr_sas_port = NULL;
1774 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1775 port_list) {
1776 if (mr_sas_port->marked_responding)
1777 continue;
1778 if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
1779 continue;
1780 if (h_port[i].lowest_phy == mr_sas_port->lowest_phy) {
1781 mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
1782 break;
1783 }
1784 }
1785 }
1786
1787 /* In case if lowest phy is got enabled or disabled during reset */
1788 for (i = 0; i < host_port_count; i++) {
1789 if (h_port[i].used)
1790 continue;
1791 mr_sas_port = NULL;
1792 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1793 port_list) {
1794 if (mr_sas_port->marked_responding)
1795 continue;
1796 if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
1797 continue;
1798 if (h_port[i].phy_mask & mr_sas_port->phy_mask) {
1799 mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
1800 break;
1801 }
1802 }
1803 }
1804
1805 /* In case if expander cable is removed & connected to another HBA port during reset */
1806 for (i = 0; i < host_port_count; i++) {
1807 if (h_port[i].used)
1808 continue;
1809 mr_sas_port = NULL;
1810 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1811 port_list) {
1812 if (mr_sas_port->marked_responding)
1813 continue;
1814 if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
1815 continue;
1816 mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
1817 break;
1818 }
1819 }
1820out:
1821 kfree(h_port);
1822 kfree(sas_io_unit_pg0);
1823}
1824
1825/**
1826 * mpi3mr_refresh_expanders - Refresh expander device exposure
1827 * @mrioc: Adapter instance reference
1828 *
1829 * This is executed post controller reset to identify any
1830 * missing expander devices during reset and remove from the upper layers
1831 * or expose any newly detected expander device to the upper layers.
1832 *
1833 * Return: Nothing.
1834 */
1835void
1836mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc)
1837{
1838 struct mpi3mr_sas_node *sas_expander, *sas_expander_next;
1839 struct mpi3_sas_expander_page0 expander_pg0;
1840 u16 ioc_status, handle;
1841 u64 sas_address;
1842 int i;
1843 unsigned long flags;
1844 struct mpi3mr_hba_port *hba_port;
1845
1846 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1847 list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
1848 sas_expander->non_responding = 1;
1849 }
1850 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1851
1852 sas_expander = NULL;
1853
1854 handle = 0xffff;
1855
1856 /* Search for responding expander devices and add them if they are newly got added */
1857 while (true) {
1858 if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
1859 sizeof(struct mpi3_sas_expander_page0),
1860 MPI3_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1861 dprint_reset(mrioc,
1862 "failed to read exp pg0 for handle(0x%04x) at %s:%d/%s()!\n",
1863 handle, __FILE__, __LINE__, __func__);
1864 break;
1865 }
1866
1867 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1868 dprint_reset(mrioc,
1869 "ioc_status(0x%x) while reading exp pg0 for handle:(0x%04x), %s:%d/%s()!\n",
1870 ioc_status, handle, __FILE__, __LINE__, __func__);
1871 break;
1872 }
1873
1874 handle = le16_to_cpu(expander_pg0.dev_handle);
1875 sas_address = le64_to_cpu(expander_pg0.sas_address);
1876 hba_port = mpi3mr_get_hba_port_by_id(mrioc, expander_pg0.io_unit_port);
1877
1878 if (!hba_port) {
1879 mpi3mr_sas_host_refresh(mrioc);
1880 mpi3mr_expander_add(mrioc, handle);
1881 continue;
1882 }
1883
1884 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1885 sas_expander =
1886 mpi3mr_expander_find_by_sas_address(mrioc,
1887 sas_address, hba_port);
1888 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1889
1890 if (!sas_expander) {
1891 mpi3mr_sas_host_refresh(mrioc);
1892 mpi3mr_expander_add(mrioc, handle);
1893 continue;
1894 }
1895
1896 sas_expander->non_responding = 0;
1897 if (sas_expander->handle == handle)
1898 continue;
1899
1900 sas_expander->handle = handle;
1901 for (i = 0 ; i < sas_expander->num_phys ; i++)
1902 sas_expander->phy[i].handle = handle;
1903 }
1904
1905 /*
1906 * Delete non responding expander devices and the corresponding
1907 * hba_port if the non responding expander device's parent device
1908 * is a host node.
1909 */
1910 sas_expander = NULL;
1911 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1912 list_for_each_entry_safe_reverse(sas_expander, sas_expander_next,
1913 &mrioc->sas_expander_list, list) {
1914 if (sas_expander->non_responding) {
1915 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1916 mpi3mr_expander_node_remove(mrioc, sas_expander);
1917 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1918 }
1919 }
1920 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1921}
1922
1923/**
1924 * mpi3mr_expander_node_add - insert an expander to the list.
1925 * @mrioc: Adapter instance reference
1926 * @sas_expander: Expander sas node
1927 * Context: This function will acquire sas_node_lock.
1928 *
1929 * Adding new object to the ioc->sas_expander_list.
1930 *
1931 * Return: None.
1932 */
1933static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc,
1934 struct mpi3mr_sas_node *sas_expander)
1935{
1936 unsigned long flags;
1937
1938 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1939 list_add_tail(&sas_expander->list, &mrioc->sas_expander_list);
1940 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1941}
1942
1943/**
1944 * mpi3mr_expander_add - Create expander object
1945 * @mrioc: Adapter instance reference
1946 * @handle: Expander firmware device handle
1947 *
1948 * This function creating expander object, stored in
1949 * sas_expander_list and expose it to the SAS transport
1950 * layer.
1951 *
1952 * Return: 0 for success, non-zero for failure.
1953 */
1954int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle)
1955{
1956 struct mpi3mr_sas_node *sas_expander;
1957 struct mpi3mr_enclosure_node *enclosure_dev;
1958 struct mpi3_sas_expander_page0 expander_pg0;
1959 struct mpi3_sas_expander_page1 expander_pg1;
1960 u16 ioc_status, parent_handle, temp_handle;
1961 u64 sas_address, sas_address_parent = 0;
1962 int i;
1963 unsigned long flags;
1964 u8 port_id, link_rate;
1965 struct mpi3mr_sas_port *mr_sas_port = NULL;
1966 struct mpi3mr_hba_port *hba_port;
1967 u32 phynum_handle;
1968 int rc = 0;
1969
1970 if (!handle)
1971 return -1;
1972
1973 if (mrioc->reset_in_progress)
1974 return -1;
1975
1976 if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
1977 sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, handle))) {
1978 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1979 __FILE__, __LINE__, __func__);
1980 return -1;
1981 }
1982
1983 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1984 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1985 __FILE__, __LINE__, __func__);
1986 return -1;
1987 }
1988
1989 parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle);
1990 if (mpi3mr_get_sas_address(mrioc, parent_handle, &sas_address_parent)
1991 != 0) {
1992 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1993 __FILE__, __LINE__, __func__);
1994 return -1;
1995 }
1996
1997 port_id = expander_pg0.io_unit_port;
1998 hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
1999 if (!hba_port) {
2000 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2001 __FILE__, __LINE__, __func__);
2002 return -1;
2003 }
2004
2005 if (sas_address_parent != mrioc->sas_hba.sas_address) {
2006 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2007 sas_expander =
2008 mpi3mr_expander_find_by_sas_address(mrioc,
2009 sas_address_parent, hba_port);
2010 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2011 if (!sas_expander) {
2012 rc = mpi3mr_expander_add(mrioc, parent_handle);
2013 if (rc != 0)
2014 return rc;
2015 } else {
2016 /*
2017 * When there is a parent expander present, update it's
2018 * phys where child expander is connected with the link
2019 * speed, attached dev handle and sas address.
2020 */
2021 for (i = 0 ; i < sas_expander->num_phys ; i++) {
2022 phynum_handle =
2023 (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
2024 parent_handle;
2025 if (mpi3mr_cfg_get_sas_exp_pg1(mrioc,
2026 &ioc_status, &expander_pg1,
2027 sizeof(expander_pg1),
2028 MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
2029 phynum_handle)) {
2030 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2031 __FILE__, __LINE__, __func__);
2032 rc = -1;
2033 return rc;
2034 }
2035 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2036 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2037 __FILE__, __LINE__, __func__);
2038 rc = -1;
2039 return rc;
2040 }
2041 temp_handle = le16_to_cpu(
2042 expander_pg1.attached_dev_handle);
2043 if (temp_handle != handle)
2044 continue;
2045 link_rate = (expander_pg1.negotiated_link_rate &
2046 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
2047 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
2048 mpi3mr_update_links(mrioc, sas_address_parent,
2049 handle, i, link_rate, hba_port);
2050 }
2051 }
2052 }
2053
2054 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2055 sas_address = le64_to_cpu(expander_pg0.sas_address);
2056 sas_expander = mpi3mr_expander_find_by_sas_address(mrioc,
2057 sas_address, hba_port);
2058 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2059
2060 if (sas_expander)
2061 return 0;
2062
2063 sas_expander = kzalloc(sizeof(struct mpi3mr_sas_node),
2064 GFP_KERNEL);
2065 if (!sas_expander)
2066 return -ENOMEM;
2067
2068 sas_expander->handle = handle;
2069 sas_expander->num_phys = expander_pg0.num_phys;
2070 sas_expander->sas_address_parent = sas_address_parent;
2071 sas_expander->sas_address = sas_address;
2072 sas_expander->hba_port = hba_port;
2073
2074 ioc_info(mrioc,
2075 "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
2076 handle, parent_handle, (unsigned long long)
2077 sas_expander->sas_address, sas_expander->num_phys);
2078
2079 if (!sas_expander->num_phys) {
2080 rc = -1;
2081 goto out_fail;
2082 }
2083 sas_expander->phy = kcalloc(sas_expander->num_phys,
2084 sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
2085 if (!sas_expander->phy) {
2086 rc = -1;
2087 goto out_fail;
2088 }
2089
2090 INIT_LIST_HEAD(&sas_expander->sas_port_list);
2091 mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent,
2092 sas_expander->hba_port);
2093 if (!mr_sas_port) {
2094 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2095 __FILE__, __LINE__, __func__);
2096 rc = -1;
2097 goto out_fail;
2098 }
2099 sas_expander->parent_dev = &mr_sas_port->rphy->dev;
2100 sas_expander->rphy = mr_sas_port->rphy;
2101
2102 for (i = 0 ; i < sas_expander->num_phys ; i++) {
2103 phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
2104 handle;
2105 if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
2106 &expander_pg1, sizeof(expander_pg1),
2107 MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
2108 phynum_handle)) {
2109 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2110 __FILE__, __LINE__, __func__);
2111 rc = -1;
2112 goto out_fail;
2113 }
2114 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2115 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2116 __FILE__, __LINE__, __func__);
2117 rc = -1;
2118 goto out_fail;
2119 }
2120
2121 sas_expander->phy[i].handle = handle;
2122 sas_expander->phy[i].phy_id = i;
2123 sas_expander->phy[i].hba_port = hba_port;
2124
2125 if ((mpi3mr_add_expander_phy(mrioc, &sas_expander->phy[i],
2126 expander_pg1, sas_expander->parent_dev))) {
2127 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2128 __FILE__, __LINE__, __func__);
2129 rc = -1;
2130 goto out_fail;
2131 }
2132 }
2133
2134 if (sas_expander->enclosure_handle) {
2135 enclosure_dev =
2136 mpi3mr_enclosure_find_by_handle(mrioc,
2137 sas_expander->enclosure_handle);
2138 if (enclosure_dev)
2139 sas_expander->enclosure_logical_id = le64_to_cpu(
2140 enclosure_dev->pg0.enclosure_logical_id);
2141 }
2142
2143 mpi3mr_expander_node_add(mrioc, sas_expander);
2144 return 0;
2145
2146out_fail:
2147
2148 if (mr_sas_port)
2149 mpi3mr_sas_port_remove(mrioc,
2150 sas_expander->sas_address,
2151 sas_address_parent, sas_expander->hba_port);
2152 kfree(sas_expander->phy);
2153 kfree(sas_expander);
2154 return rc;
2155}
2156
2157/**
2158 * mpi3mr_expander_node_remove - recursive removal of expander.
2159 * @mrioc: Adapter instance reference
2160 * @sas_expander: Expander device object
2161 *
2162 * Removes expander object and freeing associated memory from
2163 * the sas_expander_list and removes the same from SAS TL, if
2164 * one of the attached device is an expander then it recursively
2165 * removes the expander device too.
2166 *
2167 * Return nothing.
2168 */
2169void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc,
2170 struct mpi3mr_sas_node *sas_expander)
2171{
2172 struct mpi3mr_sas_port *mr_sas_port, *next;
2173 unsigned long flags;
2174 u8 port_id;
2175
2176 /* remove sibling ports attached to this expander */
2177 list_for_each_entry_safe(mr_sas_port, next,
2178 &sas_expander->sas_port_list, port_list) {
2179 if (mrioc->reset_in_progress)
2180 return;
2181 if (mr_sas_port->remote_identify.device_type ==
2182 SAS_END_DEVICE)
2183 mpi3mr_remove_device_by_sas_address(mrioc,
2184 mr_sas_port->remote_identify.sas_address,
2185 mr_sas_port->hba_port);
2186 else if (mr_sas_port->remote_identify.device_type ==
2187 SAS_EDGE_EXPANDER_DEVICE ||
2188 mr_sas_port->remote_identify.device_type ==
2189 SAS_FANOUT_EXPANDER_DEVICE)
2190 mpi3mr_expander_remove(mrioc,
2191 mr_sas_port->remote_identify.sas_address,
2192 mr_sas_port->hba_port);
2193 }
2194
2195 port_id = sas_expander->hba_port->port_id;
2196 mpi3mr_sas_port_remove(mrioc, sas_expander->sas_address,
2197 sas_expander->sas_address_parent, sas_expander->hba_port);
2198
2199 ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
2200 sas_expander->handle, (unsigned long long)
2201 sas_expander->sas_address, port_id);
2202
2203 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2204 list_del(&sas_expander->list);
2205 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2206
2207 kfree(sas_expander->phy);
2208 kfree(sas_expander);
2209}
2210
2211/**
2212 * mpi3mr_expander_remove - Remove expander object
2213 * @mrioc: Adapter instance reference
2214 * @sas_address: Remove expander sas_address
2215 * @hba_port: HBA port reference
2216 *
2217 * This function remove expander object, stored in
2218 * mrioc->sas_expander_list and removes it from the SAS TL by
2219 * calling mpi3mr_expander_node_remove().
2220 *
2221 * Return: None
2222 */
2223void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
2224 struct mpi3mr_hba_port *hba_port)
2225{
2226 struct mpi3mr_sas_node *sas_expander;
2227 unsigned long flags;
2228
2229 if (mrioc->reset_in_progress)
2230 return;
2231
2232 if (!hba_port)
2233 return;
2234
2235 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2236 sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
2237 hba_port);
2238 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2239 if (sas_expander)
2240 mpi3mr_expander_node_remove(mrioc, sas_expander);
2241
2242}
2243
2244/**
2245 * mpi3mr_get_sas_negotiated_logical_linkrate - get linkrate
2246 * @mrioc: Adapter instance reference
2247 * @tgtdev: Target device
2248 *
2249 * This function identifies whether the target device is
2250 * attached directly or through expander and issues sas phy
2251 * page0 or expander phy page1 and gets the link rate, if there
2252 * is any failure in reading the pages then this returns link
2253 * rate of 1.5.
2254 *
2255 * Return: logical link rate.
2256 */
2257static u8 mpi3mr_get_sas_negotiated_logical_linkrate(struct mpi3mr_ioc *mrioc,
2258 struct mpi3mr_tgt_dev *tgtdev)
2259{
2260 u8 link_rate = MPI3_SAS_NEG_LINK_RATE_1_5, phy_number;
2261 struct mpi3_sas_expander_page1 expander_pg1;
2262 struct mpi3_sas_phy_page0 phy_pg0;
2263 u32 phynum_handle;
2264 u16 ioc_status;
2265
2266 phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
2267 if (!(tgtdev->devpg0_flag & MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED)) {
2268 phynum_handle = ((phy_number<<MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT)
2269 | tgtdev->parent_handle);
2270 if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
2271 &expander_pg1, sizeof(expander_pg1),
2272 MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
2273 phynum_handle)) {
2274 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2275 __FILE__, __LINE__, __func__);
2276 goto out;
2277 }
2278 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2279 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2280 __FILE__, __LINE__, __func__);
2281 goto out;
2282 }
2283 link_rate = (expander_pg1.negotiated_link_rate &
2284 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
2285 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
2286 goto out;
2287 }
2288 if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
2289 sizeof(struct mpi3_sas_phy_page0),
2290 MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy_number)) {
2291 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2292 __FILE__, __LINE__, __func__);
2293 goto out;
2294 }
2295 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2296 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2297 __FILE__, __LINE__, __func__);
2298 goto out;
2299 }
2300 link_rate = (phy_pg0.negotiated_link_rate &
2301 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
2302 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
2303out:
2304 return link_rate;
2305}
2306
2307/**
2308 * mpi3mr_report_tgtdev_to_sas_transport - expose dev to SAS TL
2309 * @mrioc: Adapter instance reference
2310 * @tgtdev: Target device
2311 *
2312 * This function exposes the target device after
2313 * preparing host_phy, setting up link rate etc.
2314 *
2315 * Return: 0 on success, non-zero for failure.
2316 */
2317int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc,
2318 struct mpi3mr_tgt_dev *tgtdev)
2319{
2320 int retval = 0;
2321 u8 link_rate, parent_phy_number;
2322 u64 sas_address_parent, sas_address;
2323 struct mpi3mr_hba_port *hba_port;
2324 u8 port_id;
2325
2326 if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
2327 !mrioc->sas_transport_enabled)
2328 return -1;
2329
2330 sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
2331 if (!mrioc->sas_hba.num_phys)
2332 mpi3mr_sas_host_add(mrioc);
2333 else
2334 mpi3mr_sas_host_refresh(mrioc);
2335
2336 if (mpi3mr_get_sas_address(mrioc, tgtdev->parent_handle,
2337 &sas_address_parent) != 0) {
2338 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2339 __FILE__, __LINE__, __func__);
2340 return -1;
2341 }
2342 tgtdev->dev_spec.sas_sata_inf.sas_address_parent = sas_address_parent;
2343
2344 parent_phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
2345 port_id = tgtdev->io_unit_port;
2346
2347 hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
2348 if (!hba_port) {
2349 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2350 __FILE__, __LINE__, __func__);
2351 return -1;
2352 }
2353 tgtdev->dev_spec.sas_sata_inf.hba_port = hba_port;
2354
2355 link_rate = mpi3mr_get_sas_negotiated_logical_linkrate(mrioc, tgtdev);
2356
2357 mpi3mr_update_links(mrioc, sas_address_parent, tgtdev->dev_handle,
2358 parent_phy_number, link_rate, hba_port);
2359
2360 tgtdev->host_exposed = 1;
2361 if (!mpi3mr_sas_port_add(mrioc, tgtdev->dev_handle,
2362 sas_address_parent, hba_port)) {
2363 retval = -1;
2364 } else if ((!tgtdev->starget) && (!mrioc->is_driver_loading)) {
2365 mpi3mr_sas_port_remove(mrioc, sas_address,
2366 sas_address_parent, hba_port);
2367 retval = -1;
2368 }
2369 if (retval) {
2370 tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
2371 tgtdev->host_exposed = 0;
2372 }
2373 return retval;
2374}
2375
2376/**
2377 * mpi3mr_remove_tgtdev_from_sas_transport - remove from SAS TL
2378 * @mrioc: Adapter instance reference
2379 * @tgtdev: Target device
2380 *
2381 * This function removes the target device
2382 *
2383 * Return: None.
2384 */
2385void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc,
2386 struct mpi3mr_tgt_dev *tgtdev)
2387{
2388 u64 sas_address_parent, sas_address;
2389 struct mpi3mr_hba_port *hba_port;
2390
2391 if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
2392 !mrioc->sas_transport_enabled)
2393 return;
2394
2395 hba_port = tgtdev->dev_spec.sas_sata_inf.hba_port;
2396 sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
2397 sas_address_parent = tgtdev->dev_spec.sas_sata_inf.sas_address_parent;
2398 mpi3mr_sas_port_remove(mrioc, sas_address, sas_address_parent,
2399 hba_port);
2400 tgtdev->host_exposed = 0;
2401 tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
2402}
2403
2404/**
2405 * mpi3mr_get_port_id_by_sas_phy - Get port ID of the given phy
2406 * @phy: SAS transport layer phy object
2407 *
2408 * Return: Port number for valid ID else 0xFFFF
2409 */
2410static inline u8 mpi3mr_get_port_id_by_sas_phy(struct sas_phy *phy)
2411{
2412 u8 port_id = 0xFF;
2413 struct mpi3mr_hba_port *hba_port = phy->hostdata;
2414
2415 if (hba_port)
2416 port_id = hba_port->port_id;
2417
2418 return port_id;
2419}
2420
2421/**
2422 * mpi3mr_get_port_id_by_rphy - Get Port number from SAS rphy
2423 *
2424 * @mrioc: Adapter instance reference
2425 * @rphy: SAS transport layer remote phy object
2426 *
2427 * Retrieves HBA port number in which the device pointed by the
2428 * rphy object is attached with.
2429 *
2430 * Return: Valid port number on success else OxFFFF.
2431 */
2432static u8 mpi3mr_get_port_id_by_rphy(struct mpi3mr_ioc *mrioc, struct sas_rphy *rphy)
2433{
2434 struct mpi3mr_sas_node *sas_expander;
2435 struct mpi3mr_tgt_dev *tgtdev;
2436 unsigned long flags;
2437 u8 port_id = 0xFF;
2438
2439 if (!rphy)
2440 return port_id;
2441
2442 if (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE ||
2443 rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) {
2444 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2445 list_for_each_entry(sas_expander, &mrioc->sas_expander_list,
2446 list) {
2447 if (sas_expander->rphy == rphy) {
2448 port_id = sas_expander->hba_port->port_id;
2449 break;
2450 }
2451 }
2452 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2453 } else if (rphy->identify.device_type == SAS_END_DEVICE) {
2454 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
2455
2456 tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
2457 rphy->identify.sas_address, rphy);
2458 if (tgtdev && tgtdev->dev_spec.sas_sata_inf.hba_port) {
2459 port_id =
2460 tgtdev->dev_spec.sas_sata_inf.hba_port->port_id;
2461 mpi3mr_tgtdev_put(tgtdev);
2462 }
2463 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
2464 }
2465 return port_id;
2466}
2467
2468static inline struct mpi3mr_ioc *phy_to_mrioc(struct sas_phy *phy)
2469{
2470 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
2471
2472 return shost_priv(shost);
2473}
2474
2475static inline struct mpi3mr_ioc *rphy_to_mrioc(struct sas_rphy *rphy)
2476{
2477 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
2478
2479 return shost_priv(shost);
2480}
2481
2482/* report phy error log structure */
2483struct phy_error_log_request {
2484 u8 smp_frame_type; /* 0x40 */
2485 u8 function; /* 0x11 */
2486 u8 allocated_response_length;
2487 u8 request_length; /* 02 */
2488 u8 reserved_1[5];
2489 u8 phy_identifier;
2490 u8 reserved_2[2];
2491};
2492
2493/* report phy error log reply structure */
2494struct phy_error_log_reply {
2495 u8 smp_frame_type; /* 0x41 */
2496 u8 function; /* 0x11 */
2497 u8 function_result;
2498 u8 response_length;
2499 __be16 expander_change_count;
2500 u8 reserved_1[3];
2501 u8 phy_identifier;
2502 u8 reserved_2[2];
2503 __be32 invalid_dword;
2504 __be32 running_disparity_error;
2505 __be32 loss_of_dword_sync;
2506 __be32 phy_reset_problem;
2507};
2508
2509
2510/**
2511 * mpi3mr_get_expander_phy_error_log - return expander counters:
2512 * @mrioc: Adapter instance reference
2513 * @phy: The SAS transport layer phy object
2514 *
2515 * Return: 0 for success, non-zero for failure.
2516 *
2517 */
2518static int mpi3mr_get_expander_phy_error_log(struct mpi3mr_ioc *mrioc,
2519 struct sas_phy *phy)
2520{
2521 struct mpi3_smp_passthrough_request mpi_request;
2522 struct mpi3_smp_passthrough_reply mpi_reply;
2523 struct phy_error_log_request *phy_error_log_request;
2524 struct phy_error_log_reply *phy_error_log_reply;
2525 int rc;
2526 void *psge;
2527 void *data_out = NULL;
2528 dma_addr_t data_out_dma, data_in_dma;
2529 u32 data_out_sz, data_in_sz, sz;
2530 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
2531 u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
2532 u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
2533 u16 ioc_status;
2534
2535 if (mrioc->reset_in_progress) {
2536 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
2537 return -EFAULT;
2538 }
2539
2540 data_out_sz = sizeof(struct phy_error_log_request);
2541 data_in_sz = sizeof(struct phy_error_log_reply);
2542 sz = data_out_sz + data_in_sz;
2543 data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
2544 GFP_KERNEL);
2545 if (!data_out) {
2546 rc = -ENOMEM;
2547 goto out;
2548 }
2549
2550 data_in_dma = data_out_dma + data_out_sz;
2551 phy_error_log_reply = data_out + data_out_sz;
2552
2553 rc = -EINVAL;
2554 memset(data_out, 0, sz);
2555 phy_error_log_request = data_out;
2556 phy_error_log_request->smp_frame_type = 0x40;
2557 phy_error_log_request->function = 0x11;
2558 phy_error_log_request->request_length = 2;
2559 phy_error_log_request->allocated_response_length = 0;
2560 phy_error_log_request->phy_identifier = phy->number;
2561
2562 memset(&mpi_request, 0, request_sz);
2563 memset(&mpi_reply, 0, reply_sz);
2564 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
2565 mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
2566 mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
2567 mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
2568
2569 psge = &mpi_request.request_sge;
2570 mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
2571
2572 psge = &mpi_request.response_sge;
2573 mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
2574
2575 dprint_transport_info(mrioc,
2576 "sending phy error log SMP request to sas_address(0x%016llx), phy_id(%d)\n",
2577 (unsigned long long)phy->identify.sas_address, phy->number);
2578
2579 if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
2580 &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
2581 goto out;
2582
2583 dprint_transport_info(mrioc,
2584 "phy error log SMP request completed with ioc_status(0x%04x)\n",
2585 ioc_status);
2586
2587 if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
2588 dprint_transport_info(mrioc,
2589 "phy error log - reply data transfer size(%d)\n",
2590 le16_to_cpu(mpi_reply.response_data_length));
2591
2592 if (le16_to_cpu(mpi_reply.response_data_length) !=
2593 sizeof(struct phy_error_log_reply))
2594 goto out;
2595
2596 dprint_transport_info(mrioc,
2597 "phy error log - function_result(%d)\n",
2598 phy_error_log_reply->function_result);
2599
2600 phy->invalid_dword_count =
2601 be32_to_cpu(phy_error_log_reply->invalid_dword);
2602 phy->running_disparity_error_count =
2603 be32_to_cpu(phy_error_log_reply->running_disparity_error);
2604 phy->loss_of_dword_sync_count =
2605 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
2606 phy->phy_reset_problem_count =
2607 be32_to_cpu(phy_error_log_reply->phy_reset_problem);
2608 rc = 0;
2609 }
2610
2611out:
2612 if (data_out)
2613 dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
2614 data_out_dma);
2615
2616 return rc;
2617}
2618
2619/**
2620 * mpi3mr_transport_get_linkerrors - return phy error counters
2621 * @phy: The SAS transport layer phy object
2622 *
2623 * This function retrieves the phy error log information of the
2624 * HBA or expander for which the phy belongs to
2625 *
2626 * Return: 0 for success, non-zero for failure.
2627 */
2628static int mpi3mr_transport_get_linkerrors(struct sas_phy *phy)
2629{
2630 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
2631 struct mpi3_sas_phy_page1 phy_pg1;
2632 int rc = 0;
2633 u16 ioc_status;
2634
2635 rc = mpi3mr_parent_present(mrioc, phy);
2636 if (rc)
2637 return rc;
2638
2639 if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
2640 return mpi3mr_get_expander_phy_error_log(mrioc, phy);
2641
2642 memset(&phy_pg1, 0, sizeof(struct mpi3_sas_phy_page1));
2643 /* get hba phy error logs */
2644 if ((mpi3mr_cfg_get_sas_phy_pg1(mrioc, &ioc_status, &phy_pg1,
2645 sizeof(struct mpi3_sas_phy_page1),
2646 MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number))) {
2647 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2648 __FILE__, __LINE__, __func__);
2649 return -ENXIO;
2650 }
2651
2652 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2653 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2654 __FILE__, __LINE__, __func__);
2655 return -ENXIO;
2656 }
2657 phy->invalid_dword_count = le32_to_cpu(phy_pg1.invalid_dword_count);
2658 phy->running_disparity_error_count =
2659 le32_to_cpu(phy_pg1.running_disparity_error_count);
2660 phy->loss_of_dword_sync_count =
2661 le32_to_cpu(phy_pg1.loss_dword_synch_count);
2662 phy->phy_reset_problem_count =
2663 le32_to_cpu(phy_pg1.phy_reset_problem_count);
2664 return 0;
2665}
2666
2667/**
2668 * mpi3mr_transport_get_enclosure_identifier - Get Enclosure ID
2669 * @rphy: The SAS transport layer remote phy object
2670 * @identifier: Enclosure identifier to be returned
2671 *
2672 * Returns the enclosure id for the device pointed by the remote
2673 * phy object.
2674 *
2675 * Return: 0 on success or -ENXIO
2676 */
2677static int
2678mpi3mr_transport_get_enclosure_identifier(struct sas_rphy *rphy,
2679 u64 *identifier)
2680{
2681 struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
2682 struct mpi3mr_tgt_dev *tgtdev = NULL;
2683 unsigned long flags;
2684 int rc;
2685
2686 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
2687 tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
2688 rphy->identify.sas_address, rphy);
2689 if (tgtdev) {
2690 *identifier =
2691 tgtdev->enclosure_logical_id;
2692 rc = 0;
2693 mpi3mr_tgtdev_put(tgtdev);
2694 } else {
2695 *identifier = 0;
2696 rc = -ENXIO;
2697 }
2698 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
2699
2700 return rc;
2701}
2702
2703/**
2704 * mpi3mr_transport_get_bay_identifier - Get bay ID
2705 * @rphy: The SAS transport layer remote phy object
2706 *
2707 * Returns the slot id for the device pointed by the remote phy
2708 * object.
2709 *
2710 * Return: Valid slot ID on success or -ENXIO
2711 */
2712static int
2713mpi3mr_transport_get_bay_identifier(struct sas_rphy *rphy)
2714{
2715 struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
2716 struct mpi3mr_tgt_dev *tgtdev = NULL;
2717 unsigned long flags;
2718 int rc;
2719
2720 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
2721 tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
2722 rphy->identify.sas_address, rphy);
2723 if (tgtdev) {
2724 rc = tgtdev->slot;
2725 mpi3mr_tgtdev_put(tgtdev);
2726 } else
2727 rc = -ENXIO;
2728 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
2729
2730 return rc;
2731}
2732
2733/* phy control request structure */
2734struct phy_control_request {
2735 u8 smp_frame_type; /* 0x40 */
2736 u8 function; /* 0x91 */
2737 u8 allocated_response_length;
2738 u8 request_length; /* 0x09 */
2739 u16 expander_change_count;
2740 u8 reserved_1[3];
2741 u8 phy_identifier;
2742 u8 phy_operation;
2743 u8 reserved_2[13];
2744 u64 attached_device_name;
2745 u8 programmed_min_physical_link_rate;
2746 u8 programmed_max_physical_link_rate;
2747 u8 reserved_3[6];
2748};
2749
2750/* phy control reply structure */
2751struct phy_control_reply {
2752 u8 smp_frame_type; /* 0x41 */
2753 u8 function; /* 0x11 */
2754 u8 function_result;
2755 u8 response_length;
2756};
2757
2758#define SMP_PHY_CONTROL_LINK_RESET (0x01)
2759#define SMP_PHY_CONTROL_HARD_RESET (0x02)
2760#define SMP_PHY_CONTROL_DISABLE (0x03)
2761
2762/**
2763 * mpi3mr_expander_phy_control - expander phy control
2764 * @mrioc: Adapter instance reference
2765 * @phy: The SAS transport layer phy object
2766 * @phy_operation: The phy operation to be executed
2767 *
2768 * Issues SMP passthru phy control request to execute a specific
2769 * phy operation for a given expander device.
2770 *
2771 * Return: 0 for success, non-zero for failure.
2772 */
2773static int
2774mpi3mr_expander_phy_control(struct mpi3mr_ioc *mrioc,
2775 struct sas_phy *phy, u8 phy_operation)
2776{
2777 struct mpi3_smp_passthrough_request mpi_request;
2778 struct mpi3_smp_passthrough_reply mpi_reply;
2779 struct phy_control_request *phy_control_request;
2780 struct phy_control_reply *phy_control_reply;
2781 int rc;
2782 void *psge;
2783 void *data_out = NULL;
2784 dma_addr_t data_out_dma;
2785 dma_addr_t data_in_dma;
2786 size_t data_in_sz;
2787 size_t data_out_sz;
2788 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
2789 u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
2790 u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
2791 u16 ioc_status;
2792 u16 sz;
2793
2794 if (mrioc->reset_in_progress) {
2795 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
2796 return -EFAULT;
2797 }
2798
2799 data_out_sz = sizeof(struct phy_control_request);
2800 data_in_sz = sizeof(struct phy_control_reply);
2801 sz = data_out_sz + data_in_sz;
2802 data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
2803 GFP_KERNEL);
2804 if (!data_out) {
2805 rc = -ENOMEM;
2806 goto out;
2807 }
2808
2809 data_in_dma = data_out_dma + data_out_sz;
2810 phy_control_reply = data_out + data_out_sz;
2811
2812 rc = -EINVAL;
2813 memset(data_out, 0, sz);
2814
2815 phy_control_request = data_out;
2816 phy_control_request->smp_frame_type = 0x40;
2817 phy_control_request->function = 0x91;
2818 phy_control_request->request_length = 9;
2819 phy_control_request->allocated_response_length = 0;
2820 phy_control_request->phy_identifier = phy->number;
2821 phy_control_request->phy_operation = phy_operation;
2822 phy_control_request->programmed_min_physical_link_rate =
2823 phy->minimum_linkrate << 4;
2824 phy_control_request->programmed_max_physical_link_rate =
2825 phy->maximum_linkrate << 4;
2826
2827 memset(&mpi_request, 0, request_sz);
2828 memset(&mpi_reply, 0, reply_sz);
2829 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
2830 mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
2831 mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
2832 mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
2833
2834 psge = &mpi_request.request_sge;
2835 mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
2836
2837 psge = &mpi_request.response_sge;
2838 mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
2839
2840 dprint_transport_info(mrioc,
2841 "sending phy control SMP request to sas_address(0x%016llx), phy_id(%d) opcode(%d)\n",
2842 (unsigned long long)phy->identify.sas_address, phy->number,
2843 phy_operation);
2844
2845 if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
2846 &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
2847 goto out;
2848
2849 dprint_transport_info(mrioc,
2850 "phy control SMP request completed with ioc_status(0x%04x)\n",
2851 ioc_status);
2852
2853 if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
2854 dprint_transport_info(mrioc,
2855 "phy control - reply data transfer size(%d)\n",
2856 le16_to_cpu(mpi_reply.response_data_length));
2857
2858 if (le16_to_cpu(mpi_reply.response_data_length) !=
2859 sizeof(struct phy_control_reply))
2860 goto out;
2861 dprint_transport_info(mrioc,
2862 "phy control - function_result(%d)\n",
2863 phy_control_reply->function_result);
2864 rc = 0;
2865 }
2866 out:
2867 if (data_out)
2868 dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
2869 data_out_dma);
2870
2871 return rc;
2872}
2873
2874/**
2875 * mpi3mr_transport_phy_reset - Reset a given phy
2876 * @phy: The SAS transport layer phy object
2877 * @hard_reset: Flag to indicate the type of reset
2878 *
2879 * Return: 0 for success, non-zero for failure.
2880 */
2881static int
2882mpi3mr_transport_phy_reset(struct sas_phy *phy, int hard_reset)
2883{
2884 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
2885 struct mpi3_iounit_control_request mpi_request;
2886 struct mpi3_iounit_control_reply mpi_reply;
2887 u16 request_sz = sizeof(struct mpi3_iounit_control_request);
2888 u16 reply_sz = sizeof(struct mpi3_iounit_control_reply);
2889 int rc = 0;
2890 u16 ioc_status;
2891
2892 rc = mpi3mr_parent_present(mrioc, phy);
2893 if (rc)
2894 return rc;
2895
2896 /* handle expander phys */
2897 if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
2898 return mpi3mr_expander_phy_control(mrioc, phy,
2899 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
2900 SMP_PHY_CONTROL_LINK_RESET);
2901
2902 /* handle hba phys */
2903 memset(&mpi_request, 0, request_sz);
2904 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
2905 mpi_request.function = MPI3_FUNCTION_IO_UNIT_CONTROL;
2906 mpi_request.operation = MPI3_CTRL_OP_SAS_PHY_CONTROL;
2907 mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_ACTION_INDEX] =
2908 (hard_reset ? MPI3_CTRL_ACTION_HARD_RESET :
2909 MPI3_CTRL_ACTION_LINK_RESET);
2910 mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_PHY_INDEX] =
2911 phy->number;
2912
2913 dprint_transport_info(mrioc,
2914 "sending phy reset request to sas_address(0x%016llx), phy_id(%d) hard_reset(%d)\n",
2915 (unsigned long long)phy->identify.sas_address, phy->number,
2916 hard_reset);
2917
2918 if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
2919 &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status)) {
2920 rc = -EAGAIN;
2921 goto out;
2922 }
2923
2924 dprint_transport_info(mrioc,
2925 "phy reset request completed with ioc_status(0x%04x)\n",
2926 ioc_status);
2927out:
2928 return rc;
2929}
2930
2931/**
2932 * mpi3mr_transport_phy_enable - enable/disable phys
2933 * @phy: The SAS transport layer phy object
2934 * @enable: flag to enable/disable, enable phy when true
2935 *
2936 * This function enables/disables a given by executing required
2937 * configuration page changes or expander phy control command
2938 *
2939 * Return: 0 for success, non-zero for failure.
2940 */
2941static int
2942mpi3mr_transport_phy_enable(struct sas_phy *phy, int enable)
2943{
2944 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
2945 struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
2946 struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
2947 u16 sz;
2948 int rc = 0;
2949 int i, discovery_active;
2950
2951 rc = mpi3mr_parent_present(mrioc, phy);
2952 if (rc)
2953 return rc;
2954
2955 /* handle expander phys */
2956 if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
2957 return mpi3mr_expander_phy_control(mrioc, phy,
2958 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
2959 SMP_PHY_CONTROL_DISABLE);
2960
2961 /* handle hba phys */
2962 sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
2963 (mrioc->sas_hba.num_phys *
2964 sizeof(struct mpi3_sas_io_unit0_phy_data));
2965 sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
2966 if (!sas_io_unit_pg0) {
2967 rc = -ENOMEM;
2968 goto out;
2969 }
2970 if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
2971 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2972 __FILE__, __LINE__, __func__);
2973 rc = -ENXIO;
2974 goto out;
2975 }
2976
2977 /* unable to enable/disable phys when discovery is active */
2978 for (i = 0, discovery_active = 0; i < mrioc->sas_hba.num_phys ; i++) {
2979 if (sas_io_unit_pg0->phy_data[i].port_flags &
2980 MPI3_SASIOUNIT0_PORTFLAGS_DISC_IN_PROGRESS) {
2981 ioc_err(mrioc,
2982 "discovery is active on port = %d, phy = %d\n"
2983 "\tunable to enable/disable phys, try again later!\n",
2984 sas_io_unit_pg0->phy_data[i].io_unit_port, i);
2985 discovery_active = 1;
2986 }
2987 }
2988
2989 if (discovery_active) {
2990 rc = -EAGAIN;
2991 goto out;
2992 }
2993
2994 if ((sas_io_unit_pg0->phy_data[phy->number].phy_flags &
2995 (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
2996 MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))) {
2997 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2998 __FILE__, __LINE__, __func__);
2999 rc = -ENXIO;
3000 goto out;
3001 }
3002
3003 /* read sas_iounit page 1 */
3004 sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
3005 (mrioc->sas_hba.num_phys *
3006 sizeof(struct mpi3_sas_io_unit1_phy_data));
3007 sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
3008 if (!sas_io_unit_pg1) {
3009 rc = -ENOMEM;
3010 goto out;
3011 }
3012
3013 if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
3014 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
3015 __FILE__, __LINE__, __func__);
3016 rc = -ENXIO;
3017 goto out;
3018 }
3019
3020 if (enable)
3021 sas_io_unit_pg1->phy_data[phy->number].phy_flags
3022 &= ~MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
3023 else
3024 sas_io_unit_pg1->phy_data[phy->number].phy_flags
3025 |= MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
3026
3027 mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz);
3028
3029 /* link reset */
3030 if (enable)
3031 mpi3mr_transport_phy_reset(phy, 0);
3032
3033 out:
3034 kfree(sas_io_unit_pg1);
3035 kfree(sas_io_unit_pg0);
3036 return rc;
3037}
3038
3039/**
3040 * mpi3mr_transport_phy_speed - set phy min/max speed
3041 * @phy: The SAS transport later phy object
3042 * @rates: Rates defined as in sas_phy_linkrates
3043 *
3044 * This function sets the link rates given in the rates
3045 * argument to the given phy by executing required configuration
3046 * page changes or expander phy control command
3047 *
3048 * Return: 0 for success, non-zero for failure.
3049 */
3050static int
3051mpi3mr_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
3052{
3053 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
3054 struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
3055 struct mpi3_sas_phy_page0 phy_pg0;
3056 u16 sz, ioc_status;
3057 int rc = 0;
3058
3059 rc = mpi3mr_parent_present(mrioc, phy);
3060 if (rc)
3061 return rc;
3062
3063 if (!rates->minimum_linkrate)
3064 rates->minimum_linkrate = phy->minimum_linkrate;
3065 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw)
3066 rates->minimum_linkrate = phy->minimum_linkrate_hw;
3067
3068 if (!rates->maximum_linkrate)
3069 rates->maximum_linkrate = phy->maximum_linkrate;
3070 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw)
3071 rates->maximum_linkrate = phy->maximum_linkrate_hw;
3072
3073 /* handle expander phys */
3074 if (phy->identify.sas_address != mrioc->sas_hba.sas_address) {
3075 phy->minimum_linkrate = rates->minimum_linkrate;
3076 phy->maximum_linkrate = rates->maximum_linkrate;
3077 return mpi3mr_expander_phy_control(mrioc, phy,
3078 SMP_PHY_CONTROL_LINK_RESET);
3079 }
3080
3081 /* handle hba phys */
3082 sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
3083 (mrioc->sas_hba.num_phys *
3084 sizeof(struct mpi3_sas_io_unit1_phy_data));
3085 sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
3086 if (!sas_io_unit_pg1) {
3087 rc = -ENOMEM;
3088 goto out;
3089 }
3090
3091 if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
3092 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
3093 __FILE__, __LINE__, __func__);
3094 rc = -ENXIO;
3095 goto out;
3096 }
3097
3098 sas_io_unit_pg1->phy_data[phy->number].max_min_link_rate =
3099 (rates->minimum_linkrate + (rates->maximum_linkrate << 4));
3100
3101 if (mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
3102 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
3103 __FILE__, __LINE__, __func__);
3104 rc = -ENXIO;
3105 goto out;
3106 }
3107
3108 /* link reset */
3109 mpi3mr_transport_phy_reset(phy, 0);
3110
3111 /* read phy page 0, then update the rates in the sas transport phy */
3112 if (!mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
3113 sizeof(struct mpi3_sas_phy_page0),
3114 MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number) &&
3115 (ioc_status == MPI3_IOCSTATUS_SUCCESS)) {
3116 phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
3117 phy_pg0.programmed_link_rate &
3118 MPI3_SAS_PRATE_MIN_RATE_MASK);
3119 phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
3120 phy_pg0.programmed_link_rate >> 4);
3121 phy->negotiated_linkrate =
3122 mpi3mr_convert_phy_link_rate(
3123 (phy_pg0.negotiated_link_rate &
3124 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK)
3125 >> MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
3126 }
3127
3128out:
3129 kfree(sas_io_unit_pg1);
3130 return rc;
3131}
3132
3133/**
3134 * mpi3mr_map_smp_buffer - map BSG dma buffer
3135 * @dev: Generic device reference
3136 * @buf: BSG buffer pointer
3137 * @dma_addr: Physical address holder
3138 * @dma_len: Mapped DMA buffer length.
3139 * @p: Virtual address holder
3140 *
3141 * This function maps the DMAable buffer
3142 *
3143 * Return: 0 on success, non-zero on failure
3144 */
3145static int
3146mpi3mr_map_smp_buffer(struct device *dev, struct bsg_buffer *buf,
3147 dma_addr_t *dma_addr, size_t *dma_len, void **p)
3148{
3149 /* Check if the request is split across multiple segments */
3150 if (buf->sg_cnt > 1) {
3151 *p = dma_alloc_coherent(dev, buf->payload_len, dma_addr,
3152 GFP_KERNEL);
3153 if (!*p)
3154 return -ENOMEM;
3155 *dma_len = buf->payload_len;
3156 } else {
3157 if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL))
3158 return -ENOMEM;
3159 *dma_addr = sg_dma_address(buf->sg_list);
3160 *dma_len = sg_dma_len(buf->sg_list);
3161 *p = NULL;
3162 }
3163
3164 return 0;
3165}
3166
3167/**
3168 * mpi3mr_unmap_smp_buffer - unmap BSG dma buffer
3169 * @dev: Generic device reference
3170 * @buf: BSG buffer pointer
3171 * @dma_addr: Physical address to be unmapped
3172 * @p: Virtual address
3173 *
3174 * This function unmaps the DMAable buffer
3175 */
3176static void
3177mpi3mr_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf,
3178 dma_addr_t dma_addr, void *p)
3179{
3180 if (p)
3181 dma_free_coherent(dev, buf->payload_len, p, dma_addr);
3182 else
3183 dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL);
3184}
3185
3186/**
3187 * mpi3mr_transport_smp_handler - handler for smp passthru
3188 * @job: BSG job reference
3189 * @shost: SCSI host object reference
3190 * @rphy: SAS transport rphy object pointing the expander
3191 *
3192 * This is used primarily by smp utils for sending the SMP
3193 * commands to the expanders attached to the controller
3194 */
3195static void
3196mpi3mr_transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
3197 struct sas_rphy *rphy)
3198{
3199 struct mpi3mr_ioc *mrioc = shost_priv(shost);
3200 struct mpi3_smp_passthrough_request mpi_request;
3201 struct mpi3_smp_passthrough_reply mpi_reply;
3202 int rc;
3203 void *psge;
3204 dma_addr_t dma_addr_in;
3205 dma_addr_t dma_addr_out;
3206 void *addr_in = NULL;
3207 void *addr_out = NULL;
3208 size_t dma_len_in;
3209 size_t dma_len_out;
3210 unsigned int reslen = 0;
3211 u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
3212 u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
3213 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
3214 u16 ioc_status;
3215
3216 if (mrioc->reset_in_progress) {
3217 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
3218 rc = -EFAULT;
3219 goto out;
3220 }
3221
3222 rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
3223 &dma_addr_out, &dma_len_out, &addr_out);
3224 if (rc)
3225 goto out;
3226
3227 if (addr_out)
3228 sg_copy_to_buffer(job->request_payload.sg_list,
3229 job->request_payload.sg_cnt, addr_out,
3230 job->request_payload.payload_len);
3231
3232 rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
3233 &dma_addr_in, &dma_len_in, &addr_in);
3234 if (rc)
3235 goto unmap_out;
3236
3237 memset(&mpi_request, 0, request_sz);
3238 memset(&mpi_reply, 0, reply_sz);
3239 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
3240 mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
3241 mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_rphy(mrioc, rphy);
3242 mpi_request.sas_address = ((rphy) ?
3243 cpu_to_le64(rphy->identify.sas_address) :
3244 cpu_to_le64(mrioc->sas_hba.sas_address));
3245 psge = &mpi_request.request_sge;
3246 mpi3mr_add_sg_single(psge, sgl_flags, dma_len_out - 4, dma_addr_out);
3247
3248 psge = &mpi_request.response_sge;
3249 mpi3mr_add_sg_single(psge, sgl_flags, dma_len_in - 4, dma_addr_in);
3250
3251 dprint_transport_info(mrioc, "sending SMP request\n");
3252
3253 rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
3254 &mpi_reply, reply_sz,
3255 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
3256 if (rc)
3257 goto unmap_in;
3258
3259 dprint_transport_info(mrioc,
3260 "SMP request completed with ioc_status(0x%04x)\n", ioc_status);
3261
3262 dprint_transport_info(mrioc,
3263 "SMP request - reply data transfer size(%d)\n",
3264 le16_to_cpu(mpi_reply.response_data_length));
3265
3266 memcpy(job->reply, &mpi_reply, reply_sz);
3267 job->reply_len = reply_sz;
3268 reslen = le16_to_cpu(mpi_reply.response_data_length);
3269
3270 if (addr_in)
3271 sg_copy_from_buffer(job->reply_payload.sg_list,
3272 job->reply_payload.sg_cnt, addr_in,
3273 job->reply_payload.payload_len);
3274
3275 rc = 0;
3276unmap_in:
3277 mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
3278 dma_addr_in, addr_in);
3279unmap_out:
3280 mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
3281 dma_addr_out, addr_out);
3282out:
3283 bsg_job_done(job, rc, reslen);
3284}
3285
3286struct sas_function_template mpi3mr_transport_functions = {
3287 .get_linkerrors = mpi3mr_transport_get_linkerrors,
3288 .get_enclosure_identifier = mpi3mr_transport_get_enclosure_identifier,
3289 .get_bay_identifier = mpi3mr_transport_get_bay_identifier,
3290 .phy_reset = mpi3mr_transport_phy_reset,
3291 .phy_enable = mpi3mr_transport_phy_enable,
3292 .set_phy_speed = mpi3mr_transport_phy_speed,
3293 .smp_handler = mpi3mr_transport_smp_handler,
3294};
3295
3296struct scsi_transport_template *mpi3mr_transport_template;