1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Driver for Broadcom MPI3 Storage Controllers
4 *
5 * Copyright (C) 2017-2022 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 */
mpi3mr_post_transport_req(struct mpi3mr_ioc * mrioc,void * request,u16 request_sz,void * reply,u16 reply_sz,int timeout,u16 * ioc_status)33 static 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
80 out_unlock:
81 mrioc->transport_cmds.state = MPI3MR_CMD_NOTUSED;
82 mutex_unlock(&mrioc->transport_cmds.mutex);
83
84 out:
85 return retval;
86 }
87
88 /* report manufacture request structure */
89 struct 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 */
97 struct 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 */
mpi3mr_report_manufacture(struct mpi3mr_ioc * mrioc,u64 sas_address,struct sas_expander_device * edev,u8 port_id)127 static 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
229 out:
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 */
__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc * mrioc,u16 handle)249 struct 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 */
mpi3mr_is_expander_device(u16 device_info)271 u8 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 */
mpi3mr_get_sas_address(struct mpi3mr_ioc * mrioc,u16 handle,u64 * sas_address)291 static 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 */
__mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc * mrioc,u64 sas_address,struct mpi3mr_hba_port * hba_port)338 static 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;
351 found_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 */
mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc * mrioc,u64 sas_address,struct mpi3mr_hba_port * hba_port)370 static 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
383 out:
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 */
mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc * mrioc,u64 sas_address,struct mpi3mr_hba_port * hba_port)398 static 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 */
__mpi3mr_get_tgtdev_by_addr_and_rphy(struct mpi3mr_ioc * mrioc,u64 sas_address,struct sas_rphy * rphy)437 struct 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;
450 found_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 */
mpi3mr_expander_find_by_sas_address(struct mpi3mr_ioc * mrioc,u64 sas_address,struct mpi3mr_hba_port * hba_port)464 static 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 }
480 out:
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 */
__mpi3mr_sas_node_find_by_sas_address(struct mpi3mr_ioc * mrioc,u64 sas_address,struct mpi3mr_hba_port * hba_port)501 static 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 */
mpi3mr_parent_present(struct mpi3mr_ioc * mrioc,struct sas_phy * phy)519 static 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 */
mpi3mr_convert_phy_link_rate(u8 link_rate)544 static 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 */
mpi3mr_delete_sas_phy(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_port * mr_sas_port,struct mpi3mr_sas_phy * mr_sas_phy)593 static 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 */
mpi3mr_add_sas_phy(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_port * mr_sas_port,struct mpi3mr_sas_phy * mr_sas_phy)620 static 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 */
mpi3mr_add_phy_to_an_existing_port(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_node * mr_sas_node,struct mpi3mr_sas_phy * mr_sas_phy,u64 sas_address,struct mpi3mr_hba_port * hba_port)650 static 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 */
mpi3mr_delete_sas_port(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_port * mr_sas_port)687 static 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 */
mpi3mr_del_phy_from_an_existing_port(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_node * mr_sas_node,struct mpi3mr_sas_phy * mr_sas_phy)716 static 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 */
mpi3mr_sas_port_sanity_check(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_node * mr_sas_node,u64 sas_address,struct mpi3mr_hba_port * hba_port)755 static 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 */
mpi3mr_set_identify(struct mpi3mr_ioc * mrioc,u16 handle,struct sas_identify * identify)781 static 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 */
mpi3mr_add_host_phy(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_phy * mr_sas_phy,struct mpi3_sas_phy_page0 phy_pg0,struct device * parent_dev)861 static 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 */
mpi3mr_add_expander_phy(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_phy * mr_sas_phy,struct mpi3_sas_expander_page1 expander_pg1,struct device * parent_dev)931 static 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 */
1000 static struct mpi3mr_hba_port *
mpi3mr_alloc_hba_port(struct mpi3mr_ioc * mrioc,u16 port_id)1001 mpi3mr_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
mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc * mrioc,u8 port_id)1024 struct 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 */
mpi3mr_update_links(struct mpi3mr_ioc * mrioc,u64 sas_address_parent,u16 handle,u8 phy_number,u8 link_rate,struct mpi3mr_hba_port * hba_port)1052 void 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 */
mpi3mr_sas_host_refresh(struct mpi3mr_ioc * mrioc)1109 void 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 */
mpi3mr_sas_host_add(struct mpi3mr_ioc * mrioc)1174 void 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
1288 out:
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 */
mpi3mr_sas_port_add(struct mpi3mr_ioc * mrioc,u16 handle,u64 sas_address_parent,struct mpi3mr_hba_port * hba_port)1306 static 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 */
mpi3mr_sas_port_remove(struct mpi3mr_ioc * mrioc,u64 sas_address,u64 sas_address_parent,struct mpi3mr_hba_port * hba_port)1486 static 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 */
1588 struct host_port {
1589 u64 sas_address;
1590 u32 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 */
1609 static void
mpi3mr_update_mr_sas_port(struct mpi3mr_ioc * mrioc,struct host_port * h_port,struct mpi3mr_sas_port * mr_sas_port)1610 mpi3mr_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 u32 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%x, new: port_id %d phy_mask:0x%x\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(u32)) {
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(u32)) {
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 */
1671 void
mpi3mr_refresh_sas_ports(struct mpi3mr_ioc * mrioc)1672 mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc)
1673 {
1674 struct host_port h_port[32];
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 if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
1689 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1690 __FILE__, __LINE__, __func__);
1691 goto out;
1692 }
1693
1694 /* Create a new expander port table */
1695 for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
1696 attached_handle = le16_to_cpu(
1697 sas_io_unit_pg0->phy_data[i].attached_dev_handle);
1698 if (!attached_handle)
1699 continue;
1700 found = 0;
1701 for (j = 0; j < host_port_count; j++) {
1702 if (h_port[j].handle == attached_handle) {
1703 h_port[j].phy_mask |= (1 << i);
1704 found = 1;
1705 break;
1706 }
1707 }
1708 if (found)
1709 continue;
1710 if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
1711 sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
1712 attached_handle))) {
1713 dprint_reset(mrioc,
1714 "failed to read dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
1715 attached_handle, __FILE__, __LINE__, __func__);
1716 continue;
1717 }
1718 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1719 dprint_reset(mrioc,
1720 "ioc_status(0x%x) while reading dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
1721 ioc_status, attached_handle,
1722 __FILE__, __LINE__, __func__);
1723 continue;
1724 }
1725 sasinf = &dev_pg0.device_specific.sas_sata_format;
1726
1727 port_idx = host_port_count;
1728 h_port[port_idx].sas_address = le64_to_cpu(sasinf->sas_address);
1729 h_port[port_idx].handle = attached_handle;
1730 h_port[port_idx].phy_mask = (1 << i);
1731 h_port[port_idx].iounit_port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
1732 h_port[port_idx].lowest_phy = sasinf->phy_num;
1733 h_port[port_idx].used = 0;
1734 host_port_count++;
1735 }
1736
1737 if (!host_port_count)
1738 goto out;
1739
1740 if (mrioc->logging_level & MPI3_DEBUG_RESET) {
1741 ioc_info(mrioc, "Host port details before reset\n");
1742 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1743 port_list) {
1744 ioc_info(mrioc,
1745 "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n",
1746 mr_sas_port->hba_port->port_id,
1747 mr_sas_port->remote_identify.sas_address,
1748 mr_sas_port->phy_mask, mr_sas_port->lowest_phy);
1749 }
1750 mr_sas_port = NULL;
1751 ioc_info(mrioc, "Host port details after reset\n");
1752 for (i = 0; i < host_port_count; i++) {
1753 ioc_info(mrioc,
1754 "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n",
1755 h_port[i].iounit_port_id, h_port[i].sas_address,
1756 h_port[i].phy_mask, h_port[i].lowest_phy);
1757 }
1758 }
1759
1760 /* mark all host sas port entries as dirty */
1761 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1762 port_list) {
1763 mr_sas_port->marked_responding = 0;
1764 mr_sas_port->hba_port->flags |= MPI3MR_HBA_PORT_FLAG_DIRTY;
1765 }
1766
1767 /* First check for matching lowest phy */
1768 for (i = 0; i < host_port_count; i++) {
1769 mr_sas_port = NULL;
1770 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1771 port_list) {
1772 if (mr_sas_port->marked_responding)
1773 continue;
1774 if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
1775 continue;
1776 if (h_port[i].lowest_phy == mr_sas_port->lowest_phy) {
1777 mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
1778 break;
1779 }
1780 }
1781 }
1782
1783 /* In case if lowest phy is got enabled or disabled during reset */
1784 for (i = 0; i < host_port_count; i++) {
1785 if (h_port[i].used)
1786 continue;
1787 mr_sas_port = NULL;
1788 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1789 port_list) {
1790 if (mr_sas_port->marked_responding)
1791 continue;
1792 if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
1793 continue;
1794 if (h_port[i].phy_mask & mr_sas_port->phy_mask) {
1795 mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
1796 break;
1797 }
1798 }
1799 }
1800
1801 /* In case if expander cable is removed & connected to another HBA port during reset */
1802 for (i = 0; i < host_port_count; i++) {
1803 if (h_port[i].used)
1804 continue;
1805 mr_sas_port = NULL;
1806 list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
1807 port_list) {
1808 if (mr_sas_port->marked_responding)
1809 continue;
1810 if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
1811 continue;
1812 mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
1813 break;
1814 }
1815 }
1816 out:
1817 kfree(sas_io_unit_pg0);
1818 }
1819
1820 /**
1821 * mpi3mr_refresh_expanders - Refresh expander device exposure
1822 * @mrioc: Adapter instance reference
1823 *
1824 * This is executed post controller reset to identify any
1825 * missing expander devices during reset and remove from the upper layers
1826 * or expose any newly detected expander device to the upper layers.
1827 *
1828 * Return: Nothing.
1829 */
1830 void
mpi3mr_refresh_expanders(struct mpi3mr_ioc * mrioc)1831 mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc)
1832 {
1833 struct mpi3mr_sas_node *sas_expander, *sas_expander_next;
1834 struct mpi3_sas_expander_page0 expander_pg0;
1835 u16 ioc_status, handle;
1836 u64 sas_address;
1837 int i;
1838 unsigned long flags;
1839 struct mpi3mr_hba_port *hba_port;
1840
1841 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1842 list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
1843 sas_expander->non_responding = 1;
1844 }
1845 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1846
1847 sas_expander = NULL;
1848
1849 handle = 0xffff;
1850
1851 /* Search for responding expander devices and add them if they are newly got added */
1852 while (true) {
1853 if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
1854 sizeof(struct mpi3_sas_expander_page0),
1855 MPI3_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
1856 dprint_reset(mrioc,
1857 "failed to read exp pg0 for handle(0x%04x) at %s:%d/%s()!\n",
1858 handle, __FILE__, __LINE__, __func__);
1859 break;
1860 }
1861
1862 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1863 dprint_reset(mrioc,
1864 "ioc_status(0x%x) while reading exp pg0 for handle:(0x%04x), %s:%d/%s()!\n",
1865 ioc_status, handle, __FILE__, __LINE__, __func__);
1866 break;
1867 }
1868
1869 handle = le16_to_cpu(expander_pg0.dev_handle);
1870 sas_address = le64_to_cpu(expander_pg0.sas_address);
1871 hba_port = mpi3mr_get_hba_port_by_id(mrioc, expander_pg0.io_unit_port);
1872
1873 if (!hba_port) {
1874 mpi3mr_sas_host_refresh(mrioc);
1875 mpi3mr_expander_add(mrioc, handle);
1876 continue;
1877 }
1878
1879 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1880 sas_expander =
1881 mpi3mr_expander_find_by_sas_address(mrioc,
1882 sas_address, hba_port);
1883 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1884
1885 if (!sas_expander) {
1886 mpi3mr_sas_host_refresh(mrioc);
1887 mpi3mr_expander_add(mrioc, handle);
1888 continue;
1889 }
1890
1891 sas_expander->non_responding = 0;
1892 if (sas_expander->handle == handle)
1893 continue;
1894
1895 sas_expander->handle = handle;
1896 for (i = 0 ; i < sas_expander->num_phys ; i++)
1897 sas_expander->phy[i].handle = handle;
1898 }
1899
1900 /*
1901 * Delete non responding expander devices and the corresponding
1902 * hba_port if the non responding expander device's parent device
1903 * is a host node.
1904 */
1905 sas_expander = NULL;
1906 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1907 list_for_each_entry_safe_reverse(sas_expander, sas_expander_next,
1908 &mrioc->sas_expander_list, list) {
1909 if (sas_expander->non_responding) {
1910 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1911 mpi3mr_expander_node_remove(mrioc, sas_expander);
1912 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1913 }
1914 }
1915 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1916 }
1917
1918 /**
1919 * mpi3mr_expander_node_add - insert an expander to the list.
1920 * @mrioc: Adapter instance reference
1921 * @sas_expander: Expander sas node
1922 * Context: This function will acquire sas_node_lock.
1923 *
1924 * Adding new object to the ioc->sas_expander_list.
1925 *
1926 * Return: None.
1927 */
mpi3mr_expander_node_add(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_node * sas_expander)1928 static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc,
1929 struct mpi3mr_sas_node *sas_expander)
1930 {
1931 unsigned long flags;
1932
1933 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
1934 list_add_tail(&sas_expander->list, &mrioc->sas_expander_list);
1935 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
1936 }
1937
1938 /**
1939 * mpi3mr_expander_add - Create expander object
1940 * @mrioc: Adapter instance reference
1941 * @handle: Expander firmware device handle
1942 *
1943 * This function creating expander object, stored in
1944 * sas_expander_list and expose it to the SAS transport
1945 * layer.
1946 *
1947 * Return: 0 for success, non-zero for failure.
1948 */
mpi3mr_expander_add(struct mpi3mr_ioc * mrioc,u16 handle)1949 int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle)
1950 {
1951 struct mpi3mr_sas_node *sas_expander;
1952 struct mpi3mr_enclosure_node *enclosure_dev;
1953 struct mpi3_sas_expander_page0 expander_pg0;
1954 struct mpi3_sas_expander_page1 expander_pg1;
1955 u16 ioc_status, parent_handle, temp_handle;
1956 u64 sas_address, sas_address_parent = 0;
1957 int i;
1958 unsigned long flags;
1959 u8 port_id, link_rate;
1960 struct mpi3mr_sas_port *mr_sas_port = NULL;
1961 struct mpi3mr_hba_port *hba_port;
1962 u32 phynum_handle;
1963 int rc = 0;
1964
1965 if (!handle)
1966 return -1;
1967
1968 if (mrioc->reset_in_progress)
1969 return -1;
1970
1971 if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
1972 sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, handle))) {
1973 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1974 __FILE__, __LINE__, __func__);
1975 return -1;
1976 }
1977
1978 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
1979 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1980 __FILE__, __LINE__, __func__);
1981 return -1;
1982 }
1983
1984 parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle);
1985 if (mpi3mr_get_sas_address(mrioc, parent_handle, &sas_address_parent)
1986 != 0) {
1987 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1988 __FILE__, __LINE__, __func__);
1989 return -1;
1990 }
1991
1992 port_id = expander_pg0.io_unit_port;
1993 hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
1994 if (!hba_port) {
1995 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
1996 __FILE__, __LINE__, __func__);
1997 return -1;
1998 }
1999
2000 if (sas_address_parent != mrioc->sas_hba.sas_address) {
2001 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2002 sas_expander =
2003 mpi3mr_expander_find_by_sas_address(mrioc,
2004 sas_address_parent, hba_port);
2005 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2006 if (!sas_expander) {
2007 rc = mpi3mr_expander_add(mrioc, parent_handle);
2008 if (rc != 0)
2009 return rc;
2010 } else {
2011 /*
2012 * When there is a parent expander present, update it's
2013 * phys where child expander is connected with the link
2014 * speed, attached dev handle and sas address.
2015 */
2016 for (i = 0 ; i < sas_expander->num_phys ; i++) {
2017 phynum_handle =
2018 (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
2019 parent_handle;
2020 if (mpi3mr_cfg_get_sas_exp_pg1(mrioc,
2021 &ioc_status, &expander_pg1,
2022 sizeof(expander_pg1),
2023 MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
2024 phynum_handle)) {
2025 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2026 __FILE__, __LINE__, __func__);
2027 rc = -1;
2028 return rc;
2029 }
2030 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2031 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2032 __FILE__, __LINE__, __func__);
2033 rc = -1;
2034 return rc;
2035 }
2036 temp_handle = le16_to_cpu(
2037 expander_pg1.attached_dev_handle);
2038 if (temp_handle != handle)
2039 continue;
2040 link_rate = (expander_pg1.negotiated_link_rate &
2041 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
2042 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
2043 mpi3mr_update_links(mrioc, sas_address_parent,
2044 handle, i, link_rate, hba_port);
2045 }
2046 }
2047 }
2048
2049 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2050 sas_address = le64_to_cpu(expander_pg0.sas_address);
2051 sas_expander = mpi3mr_expander_find_by_sas_address(mrioc,
2052 sas_address, hba_port);
2053 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2054
2055 if (sas_expander)
2056 return 0;
2057
2058 sas_expander = kzalloc(sizeof(struct mpi3mr_sas_node),
2059 GFP_KERNEL);
2060 if (!sas_expander)
2061 return -1;
2062
2063 sas_expander->handle = handle;
2064 sas_expander->num_phys = expander_pg0.num_phys;
2065 sas_expander->sas_address_parent = sas_address_parent;
2066 sas_expander->sas_address = sas_address;
2067 sas_expander->hba_port = hba_port;
2068
2069 ioc_info(mrioc,
2070 "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
2071 handle, parent_handle, (unsigned long long)
2072 sas_expander->sas_address, sas_expander->num_phys);
2073
2074 if (!sas_expander->num_phys) {
2075 rc = -1;
2076 goto out_fail;
2077 }
2078 sas_expander->phy = kcalloc(sas_expander->num_phys,
2079 sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
2080 if (!sas_expander->phy) {
2081 rc = -1;
2082 goto out_fail;
2083 }
2084
2085 INIT_LIST_HEAD(&sas_expander->sas_port_list);
2086 mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent,
2087 sas_expander->hba_port);
2088 if (!mr_sas_port) {
2089 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2090 __FILE__, __LINE__, __func__);
2091 rc = -1;
2092 goto out_fail;
2093 }
2094 sas_expander->parent_dev = &mr_sas_port->rphy->dev;
2095 sas_expander->rphy = mr_sas_port->rphy;
2096
2097 for (i = 0 ; i < sas_expander->num_phys ; i++) {
2098 phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
2099 handle;
2100 if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
2101 &expander_pg1, sizeof(expander_pg1),
2102 MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
2103 phynum_handle)) {
2104 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2105 __FILE__, __LINE__, __func__);
2106 rc = -1;
2107 goto out_fail;
2108 }
2109 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2110 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2111 __FILE__, __LINE__, __func__);
2112 rc = -1;
2113 goto out_fail;
2114 }
2115
2116 sas_expander->phy[i].handle = handle;
2117 sas_expander->phy[i].phy_id = i;
2118 sas_expander->phy[i].hba_port = hba_port;
2119
2120 if ((mpi3mr_add_expander_phy(mrioc, &sas_expander->phy[i],
2121 expander_pg1, sas_expander->parent_dev))) {
2122 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2123 __FILE__, __LINE__, __func__);
2124 rc = -1;
2125 goto out_fail;
2126 }
2127 }
2128
2129 if (sas_expander->enclosure_handle) {
2130 enclosure_dev =
2131 mpi3mr_enclosure_find_by_handle(mrioc,
2132 sas_expander->enclosure_handle);
2133 if (enclosure_dev)
2134 sas_expander->enclosure_logical_id = le64_to_cpu(
2135 enclosure_dev->pg0.enclosure_logical_id);
2136 }
2137
2138 mpi3mr_expander_node_add(mrioc, sas_expander);
2139 return 0;
2140
2141 out_fail:
2142
2143 if (mr_sas_port)
2144 mpi3mr_sas_port_remove(mrioc,
2145 sas_expander->sas_address,
2146 sas_address_parent, sas_expander->hba_port);
2147 kfree(sas_expander->phy);
2148 kfree(sas_expander);
2149 return rc;
2150 }
2151
2152 /**
2153 * mpi3mr_expander_node_remove - recursive removal of expander.
2154 * @mrioc: Adapter instance reference
2155 * @sas_expander: Expander device object
2156 *
2157 * Removes expander object and freeing associated memory from
2158 * the sas_expander_list and removes the same from SAS TL, if
2159 * one of the attached device is an expander then it recursively
2160 * removes the expander device too.
2161 *
2162 * Return nothing.
2163 */
mpi3mr_expander_node_remove(struct mpi3mr_ioc * mrioc,struct mpi3mr_sas_node * sas_expander)2164 void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc,
2165 struct mpi3mr_sas_node *sas_expander)
2166 {
2167 struct mpi3mr_sas_port *mr_sas_port, *next;
2168 unsigned long flags;
2169 u8 port_id;
2170
2171 /* remove sibling ports attached to this expander */
2172 list_for_each_entry_safe(mr_sas_port, next,
2173 &sas_expander->sas_port_list, port_list) {
2174 if (mrioc->reset_in_progress)
2175 return;
2176 if (mr_sas_port->remote_identify.device_type ==
2177 SAS_END_DEVICE)
2178 mpi3mr_remove_device_by_sas_address(mrioc,
2179 mr_sas_port->remote_identify.sas_address,
2180 mr_sas_port->hba_port);
2181 else if (mr_sas_port->remote_identify.device_type ==
2182 SAS_EDGE_EXPANDER_DEVICE ||
2183 mr_sas_port->remote_identify.device_type ==
2184 SAS_FANOUT_EXPANDER_DEVICE)
2185 mpi3mr_expander_remove(mrioc,
2186 mr_sas_port->remote_identify.sas_address,
2187 mr_sas_port->hba_port);
2188 }
2189
2190 port_id = sas_expander->hba_port->port_id;
2191 mpi3mr_sas_port_remove(mrioc, sas_expander->sas_address,
2192 sas_expander->sas_address_parent, sas_expander->hba_port);
2193
2194 ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
2195 sas_expander->handle, (unsigned long long)
2196 sas_expander->sas_address, port_id);
2197
2198 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2199 list_del(&sas_expander->list);
2200 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2201
2202 kfree(sas_expander->phy);
2203 kfree(sas_expander);
2204 }
2205
2206 /**
2207 * mpi3mr_expander_remove - Remove expander object
2208 * @mrioc: Adapter instance reference
2209 * @sas_address: Remove expander sas_address
2210 * @hba_port: HBA port reference
2211 *
2212 * This function remove expander object, stored in
2213 * mrioc->sas_expander_list and removes it from the SAS TL by
2214 * calling mpi3mr_expander_node_remove().
2215 *
2216 * Return: None
2217 */
mpi3mr_expander_remove(struct mpi3mr_ioc * mrioc,u64 sas_address,struct mpi3mr_hba_port * hba_port)2218 void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
2219 struct mpi3mr_hba_port *hba_port)
2220 {
2221 struct mpi3mr_sas_node *sas_expander;
2222 unsigned long flags;
2223
2224 if (mrioc->reset_in_progress)
2225 return;
2226
2227 if (!hba_port)
2228 return;
2229
2230 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2231 sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
2232 hba_port);
2233 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2234 if (sas_expander)
2235 mpi3mr_expander_node_remove(mrioc, sas_expander);
2236
2237 }
2238
2239 /**
2240 * mpi3mr_get_sas_negotiated_logical_linkrate - get linkrate
2241 * @mrioc: Adapter instance reference
2242 * @tgtdev: Target device
2243 *
2244 * This function identifies whether the target device is
2245 * attached directly or through expander and issues sas phy
2246 * page0 or expander phy page1 and gets the link rate, if there
2247 * is any failure in reading the pages then this returns link
2248 * rate of 1.5.
2249 *
2250 * Return: logical link rate.
2251 */
mpi3mr_get_sas_negotiated_logical_linkrate(struct mpi3mr_ioc * mrioc,struct mpi3mr_tgt_dev * tgtdev)2252 static u8 mpi3mr_get_sas_negotiated_logical_linkrate(struct mpi3mr_ioc *mrioc,
2253 struct mpi3mr_tgt_dev *tgtdev)
2254 {
2255 u8 link_rate = MPI3_SAS_NEG_LINK_RATE_1_5, phy_number;
2256 struct mpi3_sas_expander_page1 expander_pg1;
2257 struct mpi3_sas_phy_page0 phy_pg0;
2258 u32 phynum_handle;
2259 u16 ioc_status;
2260
2261 phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
2262 if (!(tgtdev->devpg0_flag & MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED)) {
2263 phynum_handle = ((phy_number<<MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT)
2264 | tgtdev->parent_handle);
2265 if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
2266 &expander_pg1, sizeof(expander_pg1),
2267 MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
2268 phynum_handle)) {
2269 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2270 __FILE__, __LINE__, __func__);
2271 goto out;
2272 }
2273 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2274 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2275 __FILE__, __LINE__, __func__);
2276 goto out;
2277 }
2278 link_rate = (expander_pg1.negotiated_link_rate &
2279 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
2280 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
2281 goto out;
2282 }
2283 if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
2284 sizeof(struct mpi3_sas_phy_page0),
2285 MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy_number)) {
2286 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2287 __FILE__, __LINE__, __func__);
2288 goto out;
2289 }
2290 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2291 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2292 __FILE__, __LINE__, __func__);
2293 goto out;
2294 }
2295 link_rate = (phy_pg0.negotiated_link_rate &
2296 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
2297 MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
2298 out:
2299 return link_rate;
2300 }
2301
2302 /**
2303 * mpi3mr_report_tgtdev_to_sas_transport - expose dev to SAS TL
2304 * @mrioc: Adapter instance reference
2305 * @tgtdev: Target device
2306 *
2307 * This function exposes the target device after
2308 * preparing host_phy, setting up link rate etc.
2309 *
2310 * Return: 0 on success, non-zero for failure.
2311 */
mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc * mrioc,struct mpi3mr_tgt_dev * tgtdev)2312 int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc,
2313 struct mpi3mr_tgt_dev *tgtdev)
2314 {
2315 int retval = 0;
2316 u8 link_rate, parent_phy_number;
2317 u64 sas_address_parent, sas_address;
2318 struct mpi3mr_hba_port *hba_port;
2319 u8 port_id;
2320
2321 if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
2322 !mrioc->sas_transport_enabled)
2323 return -1;
2324
2325 sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
2326 if (!mrioc->sas_hba.num_phys)
2327 mpi3mr_sas_host_add(mrioc);
2328 else
2329 mpi3mr_sas_host_refresh(mrioc);
2330
2331 if (mpi3mr_get_sas_address(mrioc, tgtdev->parent_handle,
2332 &sas_address_parent) != 0) {
2333 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2334 __FILE__, __LINE__, __func__);
2335 return -1;
2336 }
2337 tgtdev->dev_spec.sas_sata_inf.sas_address_parent = sas_address_parent;
2338
2339 parent_phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
2340 port_id = tgtdev->io_unit_port;
2341
2342 hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
2343 if (!hba_port) {
2344 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2345 __FILE__, __LINE__, __func__);
2346 return -1;
2347 }
2348 tgtdev->dev_spec.sas_sata_inf.hba_port = hba_port;
2349
2350 link_rate = mpi3mr_get_sas_negotiated_logical_linkrate(mrioc, tgtdev);
2351
2352 mpi3mr_update_links(mrioc, sas_address_parent, tgtdev->dev_handle,
2353 parent_phy_number, link_rate, hba_port);
2354
2355 tgtdev->host_exposed = 1;
2356 if (!mpi3mr_sas_port_add(mrioc, tgtdev->dev_handle,
2357 sas_address_parent, hba_port)) {
2358 retval = -1;
2359 } else if ((!tgtdev->starget) && (!mrioc->is_driver_loading)) {
2360 mpi3mr_sas_port_remove(mrioc, sas_address,
2361 sas_address_parent, hba_port);
2362 retval = -1;
2363 }
2364 if (retval) {
2365 tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
2366 tgtdev->host_exposed = 0;
2367 }
2368 return retval;
2369 }
2370
2371 /**
2372 * mpi3mr_remove_tgtdev_from_sas_transport - remove from SAS TL
2373 * @mrioc: Adapter instance reference
2374 * @tgtdev: Target device
2375 *
2376 * This function removes the target device
2377 *
2378 * Return: None.
2379 */
mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc * mrioc,struct mpi3mr_tgt_dev * tgtdev)2380 void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc,
2381 struct mpi3mr_tgt_dev *tgtdev)
2382 {
2383 u64 sas_address_parent, sas_address;
2384 struct mpi3mr_hba_port *hba_port;
2385
2386 if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
2387 !mrioc->sas_transport_enabled)
2388 return;
2389
2390 hba_port = tgtdev->dev_spec.sas_sata_inf.hba_port;
2391 sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
2392 sas_address_parent = tgtdev->dev_spec.sas_sata_inf.sas_address_parent;
2393 mpi3mr_sas_port_remove(mrioc, sas_address, sas_address_parent,
2394 hba_port);
2395 tgtdev->host_exposed = 0;
2396 tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
2397 }
2398
2399 /**
2400 * mpi3mr_get_port_id_by_sas_phy - Get port ID of the given phy
2401 * @phy: SAS transport layer phy object
2402 *
2403 * Return: Port number for valid ID else 0xFFFF
2404 */
mpi3mr_get_port_id_by_sas_phy(struct sas_phy * phy)2405 static inline u8 mpi3mr_get_port_id_by_sas_phy(struct sas_phy *phy)
2406 {
2407 u8 port_id = 0xFF;
2408 struct mpi3mr_hba_port *hba_port = phy->hostdata;
2409
2410 if (hba_port)
2411 port_id = hba_port->port_id;
2412
2413 return port_id;
2414 }
2415
2416 /**
2417 * mpi3mr_get_port_id_by_rphy - Get Port number from SAS rphy
2418 *
2419 * @mrioc: Adapter instance reference
2420 * @rphy: SAS transport layer remote phy object
2421 *
2422 * Retrieves HBA port number in which the device pointed by the
2423 * rphy object is attached with.
2424 *
2425 * Return: Valid port number on success else OxFFFF.
2426 */
mpi3mr_get_port_id_by_rphy(struct mpi3mr_ioc * mrioc,struct sas_rphy * rphy)2427 static u8 mpi3mr_get_port_id_by_rphy(struct mpi3mr_ioc *mrioc, struct sas_rphy *rphy)
2428 {
2429 struct mpi3mr_sas_node *sas_expander;
2430 struct mpi3mr_tgt_dev *tgtdev;
2431 unsigned long flags;
2432 u8 port_id = 0xFF;
2433
2434 if (!rphy)
2435 return port_id;
2436
2437 if (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE ||
2438 rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) {
2439 spin_lock_irqsave(&mrioc->sas_node_lock, flags);
2440 list_for_each_entry(sas_expander, &mrioc->sas_expander_list,
2441 list) {
2442 if (sas_expander->rphy == rphy) {
2443 port_id = sas_expander->hba_port->port_id;
2444 break;
2445 }
2446 }
2447 spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
2448 } else if (rphy->identify.device_type == SAS_END_DEVICE) {
2449 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
2450
2451 tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
2452 rphy->identify.sas_address, rphy);
2453 if (tgtdev && tgtdev->dev_spec.sas_sata_inf.hba_port) {
2454 port_id =
2455 tgtdev->dev_spec.sas_sata_inf.hba_port->port_id;
2456 mpi3mr_tgtdev_put(tgtdev);
2457 }
2458 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
2459 }
2460 return port_id;
2461 }
2462
phy_to_mrioc(struct sas_phy * phy)2463 static inline struct mpi3mr_ioc *phy_to_mrioc(struct sas_phy *phy)
2464 {
2465 struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
2466
2467 return shost_priv(shost);
2468 }
2469
rphy_to_mrioc(struct sas_rphy * rphy)2470 static inline struct mpi3mr_ioc *rphy_to_mrioc(struct sas_rphy *rphy)
2471 {
2472 struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
2473
2474 return shost_priv(shost);
2475 }
2476
2477 /* report phy error log structure */
2478 struct phy_error_log_request {
2479 u8 smp_frame_type; /* 0x40 */
2480 u8 function; /* 0x11 */
2481 u8 allocated_response_length;
2482 u8 request_length; /* 02 */
2483 u8 reserved_1[5];
2484 u8 phy_identifier;
2485 u8 reserved_2[2];
2486 };
2487
2488 /* report phy error log reply structure */
2489 struct phy_error_log_reply {
2490 u8 smp_frame_type; /* 0x41 */
2491 u8 function; /* 0x11 */
2492 u8 function_result;
2493 u8 response_length;
2494 __be16 expander_change_count;
2495 u8 reserved_1[3];
2496 u8 phy_identifier;
2497 u8 reserved_2[2];
2498 __be32 invalid_dword;
2499 __be32 running_disparity_error;
2500 __be32 loss_of_dword_sync;
2501 __be32 phy_reset_problem;
2502 };
2503
2504
2505 /**
2506 * mpi3mr_get_expander_phy_error_log - return expander counters:
2507 * @mrioc: Adapter instance reference
2508 * @phy: The SAS transport layer phy object
2509 *
2510 * Return: 0 for success, non-zero for failure.
2511 *
2512 */
mpi3mr_get_expander_phy_error_log(struct mpi3mr_ioc * mrioc,struct sas_phy * phy)2513 static int mpi3mr_get_expander_phy_error_log(struct mpi3mr_ioc *mrioc,
2514 struct sas_phy *phy)
2515 {
2516 struct mpi3_smp_passthrough_request mpi_request;
2517 struct mpi3_smp_passthrough_reply mpi_reply;
2518 struct phy_error_log_request *phy_error_log_request;
2519 struct phy_error_log_reply *phy_error_log_reply;
2520 int rc;
2521 void *psge;
2522 void *data_out = NULL;
2523 dma_addr_t data_out_dma, data_in_dma;
2524 u32 data_out_sz, data_in_sz, sz;
2525 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
2526 u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
2527 u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
2528 u16 ioc_status;
2529
2530 if (mrioc->reset_in_progress) {
2531 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
2532 return -EFAULT;
2533 }
2534
2535 data_out_sz = sizeof(struct phy_error_log_request);
2536 data_in_sz = sizeof(struct phy_error_log_reply);
2537 sz = data_out_sz + data_in_sz;
2538 data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
2539 GFP_KERNEL);
2540 if (!data_out) {
2541 rc = -ENOMEM;
2542 goto out;
2543 }
2544
2545 data_in_dma = data_out_dma + data_out_sz;
2546 phy_error_log_reply = data_out + data_out_sz;
2547
2548 rc = -EINVAL;
2549 memset(data_out, 0, sz);
2550 phy_error_log_request = data_out;
2551 phy_error_log_request->smp_frame_type = 0x40;
2552 phy_error_log_request->function = 0x11;
2553 phy_error_log_request->request_length = 2;
2554 phy_error_log_request->allocated_response_length = 0;
2555 phy_error_log_request->phy_identifier = phy->number;
2556
2557 memset(&mpi_request, 0, request_sz);
2558 memset(&mpi_reply, 0, reply_sz);
2559 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
2560 mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
2561 mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
2562 mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
2563
2564 psge = &mpi_request.request_sge;
2565 mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
2566
2567 psge = &mpi_request.response_sge;
2568 mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
2569
2570 dprint_transport_info(mrioc,
2571 "sending phy error log SMP request to sas_address(0x%016llx), phy_id(%d)\n",
2572 (unsigned long long)phy->identify.sas_address, phy->number);
2573
2574 if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
2575 &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
2576 goto out;
2577
2578 dprint_transport_info(mrioc,
2579 "phy error log SMP request completed with ioc_status(0x%04x)\n",
2580 ioc_status);
2581
2582 if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
2583 dprint_transport_info(mrioc,
2584 "phy error log - reply data transfer size(%d)\n",
2585 le16_to_cpu(mpi_reply.response_data_length));
2586
2587 if (le16_to_cpu(mpi_reply.response_data_length) !=
2588 sizeof(struct phy_error_log_reply))
2589 goto out;
2590
2591 dprint_transport_info(mrioc,
2592 "phy error log - function_result(%d)\n",
2593 phy_error_log_reply->function_result);
2594
2595 phy->invalid_dword_count =
2596 be32_to_cpu(phy_error_log_reply->invalid_dword);
2597 phy->running_disparity_error_count =
2598 be32_to_cpu(phy_error_log_reply->running_disparity_error);
2599 phy->loss_of_dword_sync_count =
2600 be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
2601 phy->phy_reset_problem_count =
2602 be32_to_cpu(phy_error_log_reply->phy_reset_problem);
2603 rc = 0;
2604 }
2605
2606 out:
2607 if (data_out)
2608 dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
2609 data_out_dma);
2610
2611 return rc;
2612 }
2613
2614 /**
2615 * mpi3mr_transport_get_linkerrors - return phy error counters
2616 * @phy: The SAS transport layer phy object
2617 *
2618 * This function retrieves the phy error log information of the
2619 * HBA or expander for which the phy belongs to
2620 *
2621 * Return: 0 for success, non-zero for failure.
2622 */
mpi3mr_transport_get_linkerrors(struct sas_phy * phy)2623 static int mpi3mr_transport_get_linkerrors(struct sas_phy *phy)
2624 {
2625 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
2626 struct mpi3_sas_phy_page1 phy_pg1;
2627 int rc = 0;
2628 u16 ioc_status;
2629
2630 rc = mpi3mr_parent_present(mrioc, phy);
2631 if (rc)
2632 return rc;
2633
2634 if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
2635 return mpi3mr_get_expander_phy_error_log(mrioc, phy);
2636
2637 memset(&phy_pg1, 0, sizeof(struct mpi3_sas_phy_page1));
2638 /* get hba phy error logs */
2639 if ((mpi3mr_cfg_get_sas_phy_pg1(mrioc, &ioc_status, &phy_pg1,
2640 sizeof(struct mpi3_sas_phy_page1),
2641 MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number))) {
2642 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2643 __FILE__, __LINE__, __func__);
2644 return -ENXIO;
2645 }
2646
2647 if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
2648 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2649 __FILE__, __LINE__, __func__);
2650 return -ENXIO;
2651 }
2652 phy->invalid_dword_count = le32_to_cpu(phy_pg1.invalid_dword_count);
2653 phy->running_disparity_error_count =
2654 le32_to_cpu(phy_pg1.running_disparity_error_count);
2655 phy->loss_of_dword_sync_count =
2656 le32_to_cpu(phy_pg1.loss_dword_synch_count);
2657 phy->phy_reset_problem_count =
2658 le32_to_cpu(phy_pg1.phy_reset_problem_count);
2659 return 0;
2660 }
2661
2662 /**
2663 * mpi3mr_transport_get_enclosure_identifier - Get Enclosure ID
2664 * @rphy: The SAS transport layer remote phy object
2665 * @identifier: Enclosure identifier to be returned
2666 *
2667 * Returns the enclosure id for the device pointed by the remote
2668 * phy object.
2669 *
2670 * Return: 0 on success or -ENXIO
2671 */
2672 static int
mpi3mr_transport_get_enclosure_identifier(struct sas_rphy * rphy,u64 * identifier)2673 mpi3mr_transport_get_enclosure_identifier(struct sas_rphy *rphy,
2674 u64 *identifier)
2675 {
2676 struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
2677 struct mpi3mr_tgt_dev *tgtdev = NULL;
2678 unsigned long flags;
2679 int rc;
2680
2681 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
2682 tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
2683 rphy->identify.sas_address, rphy);
2684 if (tgtdev) {
2685 *identifier =
2686 tgtdev->enclosure_logical_id;
2687 rc = 0;
2688 mpi3mr_tgtdev_put(tgtdev);
2689 } else {
2690 *identifier = 0;
2691 rc = -ENXIO;
2692 }
2693 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
2694
2695 return rc;
2696 }
2697
2698 /**
2699 * mpi3mr_transport_get_bay_identifier - Get bay ID
2700 * @rphy: The SAS transport layer remote phy object
2701 *
2702 * Returns the slot id for the device pointed by the remote phy
2703 * object.
2704 *
2705 * Return: Valid slot ID on success or -ENXIO
2706 */
2707 static int
mpi3mr_transport_get_bay_identifier(struct sas_rphy * rphy)2708 mpi3mr_transport_get_bay_identifier(struct sas_rphy *rphy)
2709 {
2710 struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
2711 struct mpi3mr_tgt_dev *tgtdev = NULL;
2712 unsigned long flags;
2713 int rc;
2714
2715 spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
2716 tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
2717 rphy->identify.sas_address, rphy);
2718 if (tgtdev) {
2719 rc = tgtdev->slot;
2720 mpi3mr_tgtdev_put(tgtdev);
2721 } else
2722 rc = -ENXIO;
2723 spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
2724
2725 return rc;
2726 }
2727
2728 /* phy control request structure */
2729 struct phy_control_request {
2730 u8 smp_frame_type; /* 0x40 */
2731 u8 function; /* 0x91 */
2732 u8 allocated_response_length;
2733 u8 request_length; /* 0x09 */
2734 u16 expander_change_count;
2735 u8 reserved_1[3];
2736 u8 phy_identifier;
2737 u8 phy_operation;
2738 u8 reserved_2[13];
2739 u64 attached_device_name;
2740 u8 programmed_min_physical_link_rate;
2741 u8 programmed_max_physical_link_rate;
2742 u8 reserved_3[6];
2743 };
2744
2745 /* phy control reply structure */
2746 struct phy_control_reply {
2747 u8 smp_frame_type; /* 0x41 */
2748 u8 function; /* 0x11 */
2749 u8 function_result;
2750 u8 response_length;
2751 };
2752
2753 #define SMP_PHY_CONTROL_LINK_RESET (0x01)
2754 #define SMP_PHY_CONTROL_HARD_RESET (0x02)
2755 #define SMP_PHY_CONTROL_DISABLE (0x03)
2756
2757 /**
2758 * mpi3mr_expander_phy_control - expander phy control
2759 * @mrioc: Adapter instance reference
2760 * @phy: The SAS transport layer phy object
2761 * @phy_operation: The phy operation to be executed
2762 *
2763 * Issues SMP passthru phy control request to execute a specific
2764 * phy operation for a given expander device.
2765 *
2766 * Return: 0 for success, non-zero for failure.
2767 */
2768 static int
mpi3mr_expander_phy_control(struct mpi3mr_ioc * mrioc,struct sas_phy * phy,u8 phy_operation)2769 mpi3mr_expander_phy_control(struct mpi3mr_ioc *mrioc,
2770 struct sas_phy *phy, u8 phy_operation)
2771 {
2772 struct mpi3_smp_passthrough_request mpi_request;
2773 struct mpi3_smp_passthrough_reply mpi_reply;
2774 struct phy_control_request *phy_control_request;
2775 struct phy_control_reply *phy_control_reply;
2776 int rc;
2777 void *psge;
2778 void *data_out = NULL;
2779 dma_addr_t data_out_dma;
2780 dma_addr_t data_in_dma;
2781 size_t data_in_sz;
2782 size_t data_out_sz;
2783 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
2784 u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
2785 u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
2786 u16 ioc_status;
2787 u16 sz;
2788
2789 if (mrioc->reset_in_progress) {
2790 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
2791 return -EFAULT;
2792 }
2793
2794 data_out_sz = sizeof(struct phy_control_request);
2795 data_in_sz = sizeof(struct phy_control_reply);
2796 sz = data_out_sz + data_in_sz;
2797 data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
2798 GFP_KERNEL);
2799 if (!data_out) {
2800 rc = -ENOMEM;
2801 goto out;
2802 }
2803
2804 data_in_dma = data_out_dma + data_out_sz;
2805 phy_control_reply = data_out + data_out_sz;
2806
2807 rc = -EINVAL;
2808 memset(data_out, 0, sz);
2809
2810 phy_control_request = data_out;
2811 phy_control_request->smp_frame_type = 0x40;
2812 phy_control_request->function = 0x91;
2813 phy_control_request->request_length = 9;
2814 phy_control_request->allocated_response_length = 0;
2815 phy_control_request->phy_identifier = phy->number;
2816 phy_control_request->phy_operation = phy_operation;
2817 phy_control_request->programmed_min_physical_link_rate =
2818 phy->minimum_linkrate << 4;
2819 phy_control_request->programmed_max_physical_link_rate =
2820 phy->maximum_linkrate << 4;
2821
2822 memset(&mpi_request, 0, request_sz);
2823 memset(&mpi_reply, 0, reply_sz);
2824 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
2825 mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
2826 mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
2827 mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
2828
2829 psge = &mpi_request.request_sge;
2830 mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
2831
2832 psge = &mpi_request.response_sge;
2833 mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
2834
2835 dprint_transport_info(mrioc,
2836 "sending phy control SMP request to sas_address(0x%016llx), phy_id(%d) opcode(%d)\n",
2837 (unsigned long long)phy->identify.sas_address, phy->number,
2838 phy_operation);
2839
2840 if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
2841 &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
2842 goto out;
2843
2844 dprint_transport_info(mrioc,
2845 "phy control SMP request completed with ioc_status(0x%04x)\n",
2846 ioc_status);
2847
2848 if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
2849 dprint_transport_info(mrioc,
2850 "phy control - reply data transfer size(%d)\n",
2851 le16_to_cpu(mpi_reply.response_data_length));
2852
2853 if (le16_to_cpu(mpi_reply.response_data_length) !=
2854 sizeof(struct phy_control_reply))
2855 goto out;
2856 dprint_transport_info(mrioc,
2857 "phy control - function_result(%d)\n",
2858 phy_control_reply->function_result);
2859 rc = 0;
2860 }
2861 out:
2862 if (data_out)
2863 dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
2864 data_out_dma);
2865
2866 return rc;
2867 }
2868
2869 /**
2870 * mpi3mr_transport_phy_reset - Reset a given phy
2871 * @phy: The SAS transport layer phy object
2872 * @hard_reset: Flag to indicate the type of reset
2873 *
2874 * Return: 0 for success, non-zero for failure.
2875 */
2876 static int
mpi3mr_transport_phy_reset(struct sas_phy * phy,int hard_reset)2877 mpi3mr_transport_phy_reset(struct sas_phy *phy, int hard_reset)
2878 {
2879 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
2880 struct mpi3_iounit_control_request mpi_request;
2881 struct mpi3_iounit_control_reply mpi_reply;
2882 u16 request_sz = sizeof(struct mpi3_iounit_control_request);
2883 u16 reply_sz = sizeof(struct mpi3_iounit_control_reply);
2884 int rc = 0;
2885 u16 ioc_status;
2886
2887 rc = mpi3mr_parent_present(mrioc, phy);
2888 if (rc)
2889 return rc;
2890
2891 /* handle expander phys */
2892 if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
2893 return mpi3mr_expander_phy_control(mrioc, phy,
2894 (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
2895 SMP_PHY_CONTROL_LINK_RESET);
2896
2897 /* handle hba phys */
2898 memset(&mpi_request, 0, request_sz);
2899 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
2900 mpi_request.function = MPI3_FUNCTION_IO_UNIT_CONTROL;
2901 mpi_request.operation = MPI3_CTRL_OP_SAS_PHY_CONTROL;
2902 mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_ACTION_INDEX] =
2903 (hard_reset ? MPI3_CTRL_ACTION_HARD_RESET :
2904 MPI3_CTRL_ACTION_LINK_RESET);
2905 mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_PHY_INDEX] =
2906 phy->number;
2907
2908 dprint_transport_info(mrioc,
2909 "sending phy reset request to sas_address(0x%016llx), phy_id(%d) hard_reset(%d)\n",
2910 (unsigned long long)phy->identify.sas_address, phy->number,
2911 hard_reset);
2912
2913 if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
2914 &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status)) {
2915 rc = -EAGAIN;
2916 goto out;
2917 }
2918
2919 dprint_transport_info(mrioc,
2920 "phy reset request completed with ioc_status(0x%04x)\n",
2921 ioc_status);
2922 out:
2923 return rc;
2924 }
2925
2926 /**
2927 * mpi3mr_transport_phy_enable - enable/disable phys
2928 * @phy: The SAS transport layer phy object
2929 * @enable: flag to enable/disable, enable phy when true
2930 *
2931 * This function enables/disables a given by executing required
2932 * configuration page changes or expander phy control command
2933 *
2934 * Return: 0 for success, non-zero for failure.
2935 */
2936 static int
mpi3mr_transport_phy_enable(struct sas_phy * phy,int enable)2937 mpi3mr_transport_phy_enable(struct sas_phy *phy, int enable)
2938 {
2939 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
2940 struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
2941 struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
2942 u16 sz;
2943 int rc = 0;
2944 int i, discovery_active;
2945
2946 rc = mpi3mr_parent_present(mrioc, phy);
2947 if (rc)
2948 return rc;
2949
2950 /* handle expander phys */
2951 if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
2952 return mpi3mr_expander_phy_control(mrioc, phy,
2953 (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
2954 SMP_PHY_CONTROL_DISABLE);
2955
2956 /* handle hba phys */
2957 sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
2958 (mrioc->sas_hba.num_phys *
2959 sizeof(struct mpi3_sas_io_unit0_phy_data));
2960 sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
2961 if (!sas_io_unit_pg0) {
2962 rc = -ENOMEM;
2963 goto out;
2964 }
2965 if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
2966 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2967 __FILE__, __LINE__, __func__);
2968 rc = -ENXIO;
2969 goto out;
2970 }
2971
2972 /* unable to enable/disable phys when discovery is active */
2973 for (i = 0, discovery_active = 0; i < mrioc->sas_hba.num_phys ; i++) {
2974 if (sas_io_unit_pg0->phy_data[i].port_flags &
2975 MPI3_SASIOUNIT0_PORTFLAGS_DISC_IN_PROGRESS) {
2976 ioc_err(mrioc,
2977 "discovery is active on port = %d, phy = %d\n"
2978 "\tunable to enable/disable phys, try again later!\n",
2979 sas_io_unit_pg0->phy_data[i].io_unit_port, i);
2980 discovery_active = 1;
2981 }
2982 }
2983
2984 if (discovery_active) {
2985 rc = -EAGAIN;
2986 goto out;
2987 }
2988
2989 if ((sas_io_unit_pg0->phy_data[phy->number].phy_flags &
2990 (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
2991 MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))) {
2992 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
2993 __FILE__, __LINE__, __func__);
2994 rc = -ENXIO;
2995 goto out;
2996 }
2997
2998 /* read sas_iounit page 1 */
2999 sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
3000 (mrioc->sas_hba.num_phys *
3001 sizeof(struct mpi3_sas_io_unit1_phy_data));
3002 sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
3003 if (!sas_io_unit_pg1) {
3004 rc = -ENOMEM;
3005 goto out;
3006 }
3007
3008 if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
3009 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
3010 __FILE__, __LINE__, __func__);
3011 rc = -ENXIO;
3012 goto out;
3013 }
3014
3015 if (enable)
3016 sas_io_unit_pg1->phy_data[phy->number].phy_flags
3017 &= ~MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
3018 else
3019 sas_io_unit_pg1->phy_data[phy->number].phy_flags
3020 |= MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
3021
3022 mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz);
3023
3024 /* link reset */
3025 if (enable)
3026 mpi3mr_transport_phy_reset(phy, 0);
3027
3028 out:
3029 kfree(sas_io_unit_pg1);
3030 kfree(sas_io_unit_pg0);
3031 return rc;
3032 }
3033
3034 /**
3035 * mpi3mr_transport_phy_speed - set phy min/max speed
3036 * @phy: The SAS transport later phy object
3037 * @rates: Rates defined as in sas_phy_linkrates
3038 *
3039 * This function sets the link rates given in the rates
3040 * argument to the given phy by executing required configuration
3041 * page changes or expander phy control command
3042 *
3043 * Return: 0 for success, non-zero for failure.
3044 */
3045 static int
mpi3mr_transport_phy_speed(struct sas_phy * phy,struct sas_phy_linkrates * rates)3046 mpi3mr_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
3047 {
3048 struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
3049 struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
3050 struct mpi3_sas_phy_page0 phy_pg0;
3051 u16 sz, ioc_status;
3052 int rc = 0;
3053
3054 rc = mpi3mr_parent_present(mrioc, phy);
3055 if (rc)
3056 return rc;
3057
3058 if (!rates->minimum_linkrate)
3059 rates->minimum_linkrate = phy->minimum_linkrate;
3060 else if (rates->minimum_linkrate < phy->minimum_linkrate_hw)
3061 rates->minimum_linkrate = phy->minimum_linkrate_hw;
3062
3063 if (!rates->maximum_linkrate)
3064 rates->maximum_linkrate = phy->maximum_linkrate;
3065 else if (rates->maximum_linkrate > phy->maximum_linkrate_hw)
3066 rates->maximum_linkrate = phy->maximum_linkrate_hw;
3067
3068 /* handle expander phys */
3069 if (phy->identify.sas_address != mrioc->sas_hba.sas_address) {
3070 phy->minimum_linkrate = rates->minimum_linkrate;
3071 phy->maximum_linkrate = rates->maximum_linkrate;
3072 return mpi3mr_expander_phy_control(mrioc, phy,
3073 SMP_PHY_CONTROL_LINK_RESET);
3074 }
3075
3076 /* handle hba phys */
3077 sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
3078 (mrioc->sas_hba.num_phys *
3079 sizeof(struct mpi3_sas_io_unit1_phy_data));
3080 sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
3081 if (!sas_io_unit_pg1) {
3082 rc = -ENOMEM;
3083 goto out;
3084 }
3085
3086 if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
3087 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
3088 __FILE__, __LINE__, __func__);
3089 rc = -ENXIO;
3090 goto out;
3091 }
3092
3093 sas_io_unit_pg1->phy_data[phy->number].max_min_link_rate =
3094 (rates->minimum_linkrate + (rates->maximum_linkrate << 4));
3095
3096 if (mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
3097 ioc_err(mrioc, "failure at %s:%d/%s()!\n",
3098 __FILE__, __LINE__, __func__);
3099 rc = -ENXIO;
3100 goto out;
3101 }
3102
3103 /* link reset */
3104 mpi3mr_transport_phy_reset(phy, 0);
3105
3106 /* read phy page 0, then update the rates in the sas transport phy */
3107 if (!mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
3108 sizeof(struct mpi3_sas_phy_page0),
3109 MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number) &&
3110 (ioc_status == MPI3_IOCSTATUS_SUCCESS)) {
3111 phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
3112 phy_pg0.programmed_link_rate &
3113 MPI3_SAS_PRATE_MIN_RATE_MASK);
3114 phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
3115 phy_pg0.programmed_link_rate >> 4);
3116 phy->negotiated_linkrate =
3117 mpi3mr_convert_phy_link_rate(
3118 (phy_pg0.negotiated_link_rate &
3119 MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK)
3120 >> MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
3121 }
3122
3123 out:
3124 kfree(sas_io_unit_pg1);
3125 return rc;
3126 }
3127
3128 /**
3129 * mpi3mr_map_smp_buffer - map BSG dma buffer
3130 * @dev: Generic device reference
3131 * @buf: BSG buffer pointer
3132 * @dma_addr: Physical address holder
3133 * @dma_len: Mapped DMA buffer length.
3134 * @p: Virtual address holder
3135 *
3136 * This function maps the DMAable buffer
3137 *
3138 * Return: 0 on success, non-zero on failure
3139 */
3140 static int
mpi3mr_map_smp_buffer(struct device * dev,struct bsg_buffer * buf,dma_addr_t * dma_addr,size_t * dma_len,void ** p)3141 mpi3mr_map_smp_buffer(struct device *dev, struct bsg_buffer *buf,
3142 dma_addr_t *dma_addr, size_t *dma_len, void **p)
3143 {
3144 /* Check if the request is split across multiple segments */
3145 if (buf->sg_cnt > 1) {
3146 *p = dma_alloc_coherent(dev, buf->payload_len, dma_addr,
3147 GFP_KERNEL);
3148 if (!*p)
3149 return -ENOMEM;
3150 *dma_len = buf->payload_len;
3151 } else {
3152 if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL))
3153 return -ENOMEM;
3154 *dma_addr = sg_dma_address(buf->sg_list);
3155 *dma_len = sg_dma_len(buf->sg_list);
3156 *p = NULL;
3157 }
3158
3159 return 0;
3160 }
3161
3162 /**
3163 * mpi3mr_unmap_smp_buffer - unmap BSG dma buffer
3164 * @dev: Generic device reference
3165 * @buf: BSG buffer pointer
3166 * @dma_addr: Physical address to be unmapped
3167 * @p: Virtual address
3168 *
3169 * This function unmaps the DMAable buffer
3170 */
3171 static void
mpi3mr_unmap_smp_buffer(struct device * dev,struct bsg_buffer * buf,dma_addr_t dma_addr,void * p)3172 mpi3mr_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf,
3173 dma_addr_t dma_addr, void *p)
3174 {
3175 if (p)
3176 dma_free_coherent(dev, buf->payload_len, p, dma_addr);
3177 else
3178 dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL);
3179 }
3180
3181 /**
3182 * mpi3mr_transport_smp_handler - handler for smp passthru
3183 * @job: BSG job reference
3184 * @shost: SCSI host object reference
3185 * @rphy: SAS transport rphy object pointing the expander
3186 *
3187 * This is used primarily by smp utils for sending the SMP
3188 * commands to the expanders attached to the controller
3189 */
3190 static void
mpi3mr_transport_smp_handler(struct bsg_job * job,struct Scsi_Host * shost,struct sas_rphy * rphy)3191 mpi3mr_transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
3192 struct sas_rphy *rphy)
3193 {
3194 struct mpi3mr_ioc *mrioc = shost_priv(shost);
3195 struct mpi3_smp_passthrough_request mpi_request;
3196 struct mpi3_smp_passthrough_reply mpi_reply;
3197 int rc;
3198 void *psge;
3199 dma_addr_t dma_addr_in;
3200 dma_addr_t dma_addr_out;
3201 void *addr_in = NULL;
3202 void *addr_out = NULL;
3203 size_t dma_len_in;
3204 size_t dma_len_out;
3205 unsigned int reslen = 0;
3206 u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
3207 u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
3208 u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
3209 u16 ioc_status;
3210
3211 if (mrioc->reset_in_progress) {
3212 ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
3213 rc = -EFAULT;
3214 goto out;
3215 }
3216
3217 rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
3218 &dma_addr_out, &dma_len_out, &addr_out);
3219 if (rc)
3220 goto out;
3221
3222 if (addr_out)
3223 sg_copy_to_buffer(job->request_payload.sg_list,
3224 job->request_payload.sg_cnt, addr_out,
3225 job->request_payload.payload_len);
3226
3227 rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
3228 &dma_addr_in, &dma_len_in, &addr_in);
3229 if (rc)
3230 goto unmap_out;
3231
3232 memset(&mpi_request, 0, request_sz);
3233 memset(&mpi_reply, 0, reply_sz);
3234 mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
3235 mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
3236 mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_rphy(mrioc, rphy);
3237 mpi_request.sas_address = ((rphy) ?
3238 cpu_to_le64(rphy->identify.sas_address) :
3239 cpu_to_le64(mrioc->sas_hba.sas_address));
3240 psge = &mpi_request.request_sge;
3241 mpi3mr_add_sg_single(psge, sgl_flags, dma_len_out - 4, dma_addr_out);
3242
3243 psge = &mpi_request.response_sge;
3244 mpi3mr_add_sg_single(psge, sgl_flags, dma_len_in - 4, dma_addr_in);
3245
3246 dprint_transport_info(mrioc, "sending SMP request\n");
3247
3248 rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
3249 &mpi_reply, reply_sz,
3250 MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
3251 if (rc)
3252 goto unmap_in;
3253
3254 dprint_transport_info(mrioc,
3255 "SMP request completed with ioc_status(0x%04x)\n", ioc_status);
3256
3257 dprint_transport_info(mrioc,
3258 "SMP request - reply data transfer size(%d)\n",
3259 le16_to_cpu(mpi_reply.response_data_length));
3260
3261 memcpy(job->reply, &mpi_reply, reply_sz);
3262 job->reply_len = reply_sz;
3263 reslen = le16_to_cpu(mpi_reply.response_data_length);
3264
3265 if (addr_in)
3266 sg_copy_from_buffer(job->reply_payload.sg_list,
3267 job->reply_payload.sg_cnt, addr_in,
3268 job->reply_payload.payload_len);
3269
3270 rc = 0;
3271 unmap_in:
3272 mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
3273 dma_addr_in, addr_in);
3274 unmap_out:
3275 mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
3276 dma_addr_out, addr_out);
3277 out:
3278 bsg_job_done(job, rc, reslen);
3279 }
3280
3281 struct sas_function_template mpi3mr_transport_functions = {
3282 .get_linkerrors = mpi3mr_transport_get_linkerrors,
3283 .get_enclosure_identifier = mpi3mr_transport_get_enclosure_identifier,
3284 .get_bay_identifier = mpi3mr_transport_get_bay_identifier,
3285 .phy_reset = mpi3mr_transport_phy_reset,
3286 .phy_enable = mpi3mr_transport_phy_enable,
3287 .set_phy_speed = mpi3mr_transport_phy_speed,
3288 .smp_handler = mpi3mr_transport_smp_handler,
3289 };
3290
3291 struct scsi_transport_template *mpi3mr_transport_template;
3292