1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Driver for Broadcom MPI3 Storage Controllers |
4 | * |
5 | * Copyright (C) 2017-2023 Broadcom Inc. |
6 | * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com) |
7 | * |
8 | */ |
9 | |
10 | #include "mpi3mr.h" |
11 | |
12 | /** |
13 | * mpi3mr_post_transport_req - Issue transport requests and wait |
14 | * @mrioc: Adapter instance reference |
15 | * @request: Properly populated MPI3 request |
16 | * @request_sz: Size of the MPI3 request |
17 | * @reply: Pointer to return MPI3 reply |
18 | * @reply_sz: Size of the MPI3 reply buffer |
19 | * @timeout: Timeout in seconds |
20 | * @ioc_status: Pointer to return ioc status |
21 | * |
22 | * A generic function for posting MPI3 requests from the SAS |
23 | * transport layer that uses transport command infrastructure. |
24 | * This blocks for the completion of request for timeout seconds |
25 | * and if the request times out this function faults the |
26 | * controller with proper reason code. |
27 | * |
28 | * On successful completion of the request this function returns |
29 | * appropriate ioc status from the firmware back to the caller. |
30 | * |
31 | * Return: 0 on success, non-zero on failure. |
32 | */ |
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(lock: &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(x: &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(req: request, sz: request_sz, name_string: "transport_req" ); |
56 | retval = mpi3mr_admin_request_post(mrioc, admin_req: request, admin_req_sz: request_sz, ignore_reset: 1); |
57 | if (retval) { |
58 | ioc_err(mrioc, "posting transport request failed\n" ); |
59 | goto out_unlock; |
60 | } |
61 | wait_for_completion_timeout(x: &mrioc->transport_cmds.done, |
62 | timeout: (timeout * HZ)); |
63 | if (!(mrioc->transport_cmds.state & MPI3MR_CMD_COMPLETE)) { |
64 | mpi3mr_check_rh_fault_ioc(mrioc, |
65 | reason_code: 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(lock: &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 | */ |
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(dev: &mrioc->pdev->dev, |
155 | size: data_out_sz + data_in_sz, dma_handle: &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(paddr: psge, flags: sgl_flags, length: data_out_sz, dma_addr: data_out_dma); |
179 | |
180 | psge = &mpi_request.response_sge; |
181 | mpi3mr_add_sg_single(paddr: psge, flags: sgl_flags, length: data_in_sz, dma_addr: 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, request: &mpi_request, request_sz, |
188 | reply: &mpi_reply, reply_sz, |
189 | MPI3MR_INTADMCMD_TIMEOUT, ioc_status: &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(dev: &mrioc->pdev->dev, size: data_out_sz + data_in_sz, |
232 | cpu_addr: data_out, dma_handle: 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 | */ |
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 | */ |
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 | */ |
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: &ioc_status, dev_pg0: &dev_pg0, |
301 | pg_sz: sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, |
302 | form_spec: 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 | */ |
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(s: 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 | */ |
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(lock: &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 | */ |
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(head: &tgtdev->list)) { |
413 | list_del_init(entry: &tgtdev->list); |
414 | was_on_tgtdev_list = 1; |
415 | mpi3mr_tgtdev_put(s: tgtdev); |
416 | } |
417 | } |
418 | spin_unlock_irqrestore(lock: &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(s: 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 | */ |
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(s: 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 | */ |
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 | */ |
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 | */ |
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 | sas_address: phy->identify.sas_address, |
527 | hba_port) == NULL) { |
528 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
529 | return -1; |
530 | } |
531 | spin_unlock_irqrestore(lock: &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 | */ |
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 | */ |
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(entry: &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 | */ |
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(new: &mr_sas_phy->port_siblings, head: &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 | */ |
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 | */ |
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 | */ |
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 | */ |
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_phy: &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 | */ |
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: &ioc_status, dev_pg0: &device_pg0, |
796 | pg_sz: sizeof(device_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, form_spec: 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 | */ |
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(list: &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, handle: mr_sas_phy->handle, |
877 | identify: &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, handle: mr_sas_phy->attached_handle, |
887 | identify: &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 | link_rate: (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 | link_rate: phy_pg0.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK); |
895 | phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate( |
896 | link_rate: phy_pg0.hw_link_rate >> 4); |
897 | phy->minimum_linkrate = mpi3mr_convert_phy_link_rate( |
898 | link_rate: phy_pg0.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK); |
899 | phy->maximum_linkrate = mpi3mr_convert_phy_link_rate( |
900 | link_rate: 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 | */ |
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(list: &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, handle: mr_sas_phy->handle, |
947 | identify: &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, handle: mr_sas_phy->attached_handle, |
958 | identify: &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 | link_rate: (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 | link_rate: expander_pg1.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK); |
966 | phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate( |
967 | link_rate: expander_pg1.hw_link_rate >> 4); |
968 | phy->minimum_linkrate = mpi3mr_convert_phy_link_rate( |
969 | link_rate: expander_pg1.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK); |
970 | phy->maximum_linkrate = mpi3mr_convert_phy_link_rate( |
971 | link_rate: 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 * |
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(size: 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(new: &hba_port->list, head: &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 | |
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 | */ |
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: sas_address_parent, hba_port); |
1066 | if (!mr_sas_node) { |
1067 | spin_unlock_irqrestore(lock: &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(lock: &mrioc->sas_node_lock, flags); |
1074 | if (handle && (link_rate >= MPI3_SAS_NEG_LINK_RATE_1_5)) { |
1075 | mpi3mr_set_identify(mrioc, handle, |
1076 | identify: &mr_sas_phy->remote_identify); |
1077 | mpi3mr_add_phy_to_an_existing_port(mrioc, mr_sas_node, |
1078 | mr_sas_phy, sas_address: 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 | */ |
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(size: 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, pg_sz: 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, sas_address_parent: mrioc->sas_hba.sas_address, |
1156 | handle: attached_handle, phy_number: i, link_rate, |
1157 | hba_port: mrioc->sas_hba.phy[i].hba_port); |
1158 | } |
1159 | out: |
1160 | kfree(objp: 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 | */ |
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(size: 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, pg_sz: 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(objp: sas_io_unit_pg0); |
1197 | |
1198 | mrioc->sas_hba.host_node = 1; |
1199 | INIT_LIST_HEAD(list: &mrioc->sas_hba.sas_port_list); |
1200 | mrioc->sas_hba.parent_dev = &mrioc->shost->shost_gendev; |
1201 | mrioc->sas_hba.phy = kcalloc(n: num_phys, |
1202 | size: 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(size: 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, pg_sz: 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: &ioc_status, phy_pg0: &phy_pg0, |
1227 | pg_sz: sizeof(struct mpi3_sas_phy_page0), |
1228 | MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, form_spec: 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, mr_sas_phy: &mrioc->sas_hba.phy[i], |
1253 | phy_pg0, parent_dev: mrioc->sas_hba.parent_dev); |
1254 | } |
1255 | if ((mpi3mr_cfg_get_dev_pg0(mrioc, ioc_status: &ioc_status, dev_pg0: &dev_pg0, |
1256 | pg_sz: sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, |
1257 | form_spec: 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: &ioc_status, |
1280 | encl_pg0: &encl_pg0, pg_sz: sizeof(encl_pg0), |
1281 | MPI3_ENCLOS_PGAD_FORM_HANDLE, |
1282 | form_spec: 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(objp: 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 | */ |
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(size: sizeof(struct mpi3mr_sas_port), GFP_KERNEL); |
1325 | if (!mr_sas_port) |
1326 | return NULL; |
1327 | |
1328 | INIT_LIST_HEAD(list: &mr_sas_port->port_list); |
1329 | INIT_LIST_HEAD(list: &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: sas_address_parent, hba_port); |
1333 | spin_unlock_irqrestore(lock: &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 | identify: &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 | sas_address: 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(new: &mr_sas_node->phy[i].port_siblings, |
1364 | head: &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 | sas_address: mr_sas_port->remote_identify.sas_address, |
1380 | hba_port: 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(s: 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(new: &mr_sas_port->port_list, head: &mr_sas_node->sas_port_list); |
1447 | spin_unlock_irqrestore(lock: &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, device_add: 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 | sas_address: mr_sas_port->remote_identify.sas_address, |
1462 | rphy_to_expander_device(rphy), port_id: 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(entry: &mr_sas_phy->port_siblings); |
1470 | kfree(objp: 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 | */ |
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: sas_address_parent, hba_port); |
1503 | if (!mr_sas_node) { |
1504 | spin_unlock_irqrestore(lock: &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(entry: &mr_sas_port->port_list); |
1515 | goto out; |
1516 | } |
1517 | |
1518 | out: |
1519 | if (!found) { |
1520 | spin_unlock_irqrestore(lock: &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(entry: &hba_port->list); |
1533 | kfree(objp: 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(lock: &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(entry: &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, device_add: false); |
1574 | } |
1575 | |
1576 | kfree(objp: 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 | u64 phy_mask; |
1591 | u16 handle; |
1592 | u8 iounit_port_id; |
1593 | u8 used; |
1594 | u8 lowest_phy; |
1595 | }; |
1596 | |
1597 | /** |
1598 | * mpi3mr_update_mr_sas_port - update sas port objects during reset |
1599 | * @mrioc: Adapter instance reference |
1600 | * @h_port: host_port object |
1601 | * @mr_sas_port: sas_port objects which needs to be updated |
1602 | * |
1603 | * Update the port ID of sas port object. Also add the phys if new phys got |
1604 | * added to current sas port and remove the phys if some phys are moved |
1605 | * out of the current sas port. |
1606 | * |
1607 | * Return: Nothing. |
1608 | */ |
1609 | static void |
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 | u64 phy_mask_xor; |
1615 | u64 phys_to_be_added, phys_to_be_removed; |
1616 | int i; |
1617 | |
1618 | h_port->used = 1; |
1619 | mr_sas_port->marked_responding = 1; |
1620 | |
1621 | dev_info(&mr_sas_port->port->dev, |
1622 | "sas_address(0x%016llx), old: port_id %d phy_mask 0x%llx, new: port_id %d phy_mask:0x%llx\n" , |
1623 | mr_sas_port->remote_identify.sas_address, |
1624 | mr_sas_port->hba_port->port_id, mr_sas_port->phy_mask, |
1625 | h_port->iounit_port_id, h_port->phy_mask); |
1626 | |
1627 | mr_sas_port->hba_port->port_id = h_port->iounit_port_id; |
1628 | mr_sas_port->hba_port->flags &= ~MPI3MR_HBA_PORT_FLAG_DIRTY; |
1629 | |
1630 | /* Get the newly added phys bit map & removed phys bit map */ |
1631 | phy_mask_xor = mr_sas_port->phy_mask ^ h_port->phy_mask; |
1632 | phys_to_be_added = h_port->phy_mask & phy_mask_xor; |
1633 | phys_to_be_removed = mr_sas_port->phy_mask & phy_mask_xor; |
1634 | |
1635 | /* |
1636 | * Register these new phys to current mr_sas_port's port. |
1637 | * if these phys are previously registered with another port |
1638 | * then delete these phys from that port first. |
1639 | */ |
1640 | for_each_set_bit(i, (ulong *) &phys_to_be_added, BITS_PER_TYPE(u64)) { |
1641 | mr_sas_phy = &mrioc->sas_hba.phy[i]; |
1642 | if (mr_sas_phy->phy_belongs_to_port) |
1643 | mpi3mr_del_phy_from_an_existing_port(mrioc, |
1644 | mr_sas_node: &mrioc->sas_hba, mr_sas_phy); |
1645 | mpi3mr_add_phy_to_an_existing_port(mrioc, |
1646 | mr_sas_node: &mrioc->sas_hba, mr_sas_phy, |
1647 | sas_address: mr_sas_port->remote_identify.sas_address, |
1648 | hba_port: mr_sas_port->hba_port); |
1649 | } |
1650 | |
1651 | /* Delete the phys which are not part of current mr_sas_port's port. */ |
1652 | for_each_set_bit(i, (ulong *) &phys_to_be_removed, BITS_PER_TYPE(u64)) { |
1653 | mr_sas_phy = &mrioc->sas_hba.phy[i]; |
1654 | if (mr_sas_phy->phy_belongs_to_port) |
1655 | mpi3mr_del_phy_from_an_existing_port(mrioc, |
1656 | mr_sas_node: &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 |
1672 | mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc) |
1673 | { |
1674 | struct host_port *h_port = NULL; |
1675 | int i, j, found, host_port_count = 0, port_idx; |
1676 | u16 sz, attached_handle, ioc_status; |
1677 | struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL; |
1678 | struct mpi3_device_page0 dev_pg0; |
1679 | struct mpi3_device0_sas_sata_format *sasinf; |
1680 | struct mpi3mr_sas_port *mr_sas_port; |
1681 | |
1682 | sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) + |
1683 | (mrioc->sas_hba.num_phys * |
1684 | sizeof(struct mpi3_sas_io_unit0_phy_data)); |
1685 | sas_io_unit_pg0 = kzalloc(size: sz, GFP_KERNEL); |
1686 | if (!sas_io_unit_pg0) |
1687 | return; |
1688 | h_port = kcalloc(n: 64, size: sizeof(struct host_port), GFP_KERNEL); |
1689 | if (!h_port) |
1690 | goto out; |
1691 | |
1692 | if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, pg_sz: sz)) { |
1693 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
1694 | __FILE__, __LINE__, __func__); |
1695 | goto out; |
1696 | } |
1697 | |
1698 | /* Create a new expander port table */ |
1699 | for (i = 0; i < mrioc->sas_hba.num_phys; i++) { |
1700 | attached_handle = le16_to_cpu( |
1701 | sas_io_unit_pg0->phy_data[i].attached_dev_handle); |
1702 | if (!attached_handle) |
1703 | continue; |
1704 | found = 0; |
1705 | for (j = 0; j < host_port_count; j++) { |
1706 | if (h_port[j].handle == attached_handle) { |
1707 | h_port[j].phy_mask |= (1 << i); |
1708 | found = 1; |
1709 | break; |
1710 | } |
1711 | } |
1712 | if (found) |
1713 | continue; |
1714 | if ((mpi3mr_cfg_get_dev_pg0(mrioc, ioc_status: &ioc_status, dev_pg0: &dev_pg0, |
1715 | pg_sz: sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, |
1716 | form_spec: attached_handle))) { |
1717 | dprint_reset(mrioc, |
1718 | "failed to read dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n" , |
1719 | attached_handle, __FILE__, __LINE__, __func__); |
1720 | continue; |
1721 | } |
1722 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
1723 | dprint_reset(mrioc, |
1724 | "ioc_status(0x%x) while reading dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n" , |
1725 | ioc_status, attached_handle, |
1726 | __FILE__, __LINE__, __func__); |
1727 | continue; |
1728 | } |
1729 | sasinf = &dev_pg0.device_specific.sas_sata_format; |
1730 | |
1731 | port_idx = host_port_count; |
1732 | h_port[port_idx].sas_address = le64_to_cpu(sasinf->sas_address); |
1733 | h_port[port_idx].handle = attached_handle; |
1734 | h_port[port_idx].phy_mask = (1 << i); |
1735 | h_port[port_idx].iounit_port_id = sas_io_unit_pg0->phy_data[i].io_unit_port; |
1736 | h_port[port_idx].lowest_phy = sasinf->phy_num; |
1737 | h_port[port_idx].used = 0; |
1738 | host_port_count++; |
1739 | } |
1740 | |
1741 | if (!host_port_count) |
1742 | goto out; |
1743 | |
1744 | if (mrioc->logging_level & MPI3_DEBUG_RESET) { |
1745 | ioc_info(mrioc, "Host port details before reset\n" ); |
1746 | list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, |
1747 | port_list) { |
1748 | ioc_info(mrioc, |
1749 | "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%llx), lowest phy id:%d\n" , |
1750 | mr_sas_port->hba_port->port_id, |
1751 | mr_sas_port->remote_identify.sas_address, |
1752 | mr_sas_port->phy_mask, mr_sas_port->lowest_phy); |
1753 | } |
1754 | mr_sas_port = NULL; |
1755 | ioc_info(mrioc, "Host port details after reset\n" ); |
1756 | for (i = 0; i < host_port_count; i++) { |
1757 | ioc_info(mrioc, |
1758 | "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%llx), lowest phy id:%d\n" , |
1759 | h_port[i].iounit_port_id, h_port[i].sas_address, |
1760 | h_port[i].phy_mask, h_port[i].lowest_phy); |
1761 | } |
1762 | } |
1763 | |
1764 | /* mark all host sas port entries as dirty */ |
1765 | list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, |
1766 | port_list) { |
1767 | mr_sas_port->marked_responding = 0; |
1768 | mr_sas_port->hba_port->flags |= MPI3MR_HBA_PORT_FLAG_DIRTY; |
1769 | } |
1770 | |
1771 | /* First check for matching lowest phy */ |
1772 | for (i = 0; i < host_port_count; i++) { |
1773 | mr_sas_port = NULL; |
1774 | list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, |
1775 | port_list) { |
1776 | if (mr_sas_port->marked_responding) |
1777 | continue; |
1778 | if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address) |
1779 | continue; |
1780 | if (h_port[i].lowest_phy == mr_sas_port->lowest_phy) { |
1781 | mpi3mr_update_mr_sas_port(mrioc, h_port: &h_port[i], mr_sas_port); |
1782 | break; |
1783 | } |
1784 | } |
1785 | } |
1786 | |
1787 | /* In case if lowest phy is got enabled or disabled during reset */ |
1788 | for (i = 0; i < host_port_count; i++) { |
1789 | if (h_port[i].used) |
1790 | continue; |
1791 | mr_sas_port = NULL; |
1792 | list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, |
1793 | port_list) { |
1794 | if (mr_sas_port->marked_responding) |
1795 | continue; |
1796 | if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address) |
1797 | continue; |
1798 | if (h_port[i].phy_mask & mr_sas_port->phy_mask) { |
1799 | mpi3mr_update_mr_sas_port(mrioc, h_port: &h_port[i], mr_sas_port); |
1800 | break; |
1801 | } |
1802 | } |
1803 | } |
1804 | |
1805 | /* In case if expander cable is removed & connected to another HBA port during reset */ |
1806 | for (i = 0; i < host_port_count; i++) { |
1807 | if (h_port[i].used) |
1808 | continue; |
1809 | mr_sas_port = NULL; |
1810 | list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list, |
1811 | port_list) { |
1812 | if (mr_sas_port->marked_responding) |
1813 | continue; |
1814 | if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address) |
1815 | continue; |
1816 | mpi3mr_update_mr_sas_port(mrioc, h_port: &h_port[i], mr_sas_port); |
1817 | break; |
1818 | } |
1819 | } |
1820 | out: |
1821 | kfree(objp: h_port); |
1822 | kfree(objp: sas_io_unit_pg0); |
1823 | } |
1824 | |
1825 | /** |
1826 | * mpi3mr_refresh_expanders - Refresh expander device exposure |
1827 | * @mrioc: Adapter instance reference |
1828 | * |
1829 | * This is executed post controller reset to identify any |
1830 | * missing expander devices during reset and remove from the upper layers |
1831 | * or expose any newly detected expander device to the upper layers. |
1832 | * |
1833 | * Return: Nothing. |
1834 | */ |
1835 | void |
1836 | mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc) |
1837 | { |
1838 | struct mpi3mr_sas_node *sas_expander, *sas_expander_next; |
1839 | struct mpi3_sas_expander_page0 expander_pg0; |
1840 | u16 ioc_status, handle; |
1841 | u64 sas_address; |
1842 | int i; |
1843 | unsigned long flags; |
1844 | struct mpi3mr_hba_port *hba_port; |
1845 | |
1846 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
1847 | list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) { |
1848 | sas_expander->non_responding = 1; |
1849 | } |
1850 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
1851 | |
1852 | sas_expander = NULL; |
1853 | |
1854 | handle = 0xffff; |
1855 | |
1856 | /* Search for responding expander devices and add them if they are newly got added */ |
1857 | while (true) { |
1858 | if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, ioc_status: &ioc_status, exp_pg0: &expander_pg0, |
1859 | pg_sz: sizeof(struct mpi3_sas_expander_page0), |
1860 | MPI3_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE, form_spec: handle))) { |
1861 | dprint_reset(mrioc, |
1862 | "failed to read exp pg0 for handle(0x%04x) at %s:%d/%s()!\n" , |
1863 | handle, __FILE__, __LINE__, __func__); |
1864 | break; |
1865 | } |
1866 | |
1867 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
1868 | dprint_reset(mrioc, |
1869 | "ioc_status(0x%x) while reading exp pg0 for handle:(0x%04x), %s:%d/%s()!\n" , |
1870 | ioc_status, handle, __FILE__, __LINE__, __func__); |
1871 | break; |
1872 | } |
1873 | |
1874 | handle = le16_to_cpu(expander_pg0.dev_handle); |
1875 | sas_address = le64_to_cpu(expander_pg0.sas_address); |
1876 | hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id: expander_pg0.io_unit_port); |
1877 | |
1878 | if (!hba_port) { |
1879 | mpi3mr_sas_host_refresh(mrioc); |
1880 | mpi3mr_expander_add(mrioc, handle); |
1881 | continue; |
1882 | } |
1883 | |
1884 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
1885 | sas_expander = |
1886 | mpi3mr_expander_find_by_sas_address(mrioc, |
1887 | sas_address, hba_port); |
1888 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
1889 | |
1890 | if (!sas_expander) { |
1891 | mpi3mr_sas_host_refresh(mrioc); |
1892 | mpi3mr_expander_add(mrioc, handle); |
1893 | continue; |
1894 | } |
1895 | |
1896 | sas_expander->non_responding = 0; |
1897 | if (sas_expander->handle == handle) |
1898 | continue; |
1899 | |
1900 | sas_expander->handle = handle; |
1901 | for (i = 0 ; i < sas_expander->num_phys ; i++) |
1902 | sas_expander->phy[i].handle = handle; |
1903 | } |
1904 | |
1905 | /* |
1906 | * Delete non responding expander devices and the corresponding |
1907 | * hba_port if the non responding expander device's parent device |
1908 | * is a host node. |
1909 | */ |
1910 | sas_expander = NULL; |
1911 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
1912 | list_for_each_entry_safe_reverse(sas_expander, sas_expander_next, |
1913 | &mrioc->sas_expander_list, list) { |
1914 | if (sas_expander->non_responding) { |
1915 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
1916 | mpi3mr_expander_node_remove(mrioc, sas_expander); |
1917 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
1918 | } |
1919 | } |
1920 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
1921 | } |
1922 | |
1923 | /** |
1924 | * mpi3mr_expander_node_add - insert an expander to the list. |
1925 | * @mrioc: Adapter instance reference |
1926 | * @sas_expander: Expander sas node |
1927 | * Context: This function will acquire sas_node_lock. |
1928 | * |
1929 | * Adding new object to the ioc->sas_expander_list. |
1930 | * |
1931 | * Return: None. |
1932 | */ |
1933 | static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc, |
1934 | struct mpi3mr_sas_node *sas_expander) |
1935 | { |
1936 | unsigned long flags; |
1937 | |
1938 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
1939 | list_add_tail(new: &sas_expander->list, head: &mrioc->sas_expander_list); |
1940 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
1941 | } |
1942 | |
1943 | /** |
1944 | * mpi3mr_expander_add - Create expander object |
1945 | * @mrioc: Adapter instance reference |
1946 | * @handle: Expander firmware device handle |
1947 | * |
1948 | * This function creating expander object, stored in |
1949 | * sas_expander_list and expose it to the SAS transport |
1950 | * layer. |
1951 | * |
1952 | * Return: 0 for success, non-zero for failure. |
1953 | */ |
1954 | int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle) |
1955 | { |
1956 | struct mpi3mr_sas_node *sas_expander; |
1957 | struct mpi3mr_enclosure_node *enclosure_dev; |
1958 | struct mpi3_sas_expander_page0 expander_pg0; |
1959 | struct mpi3_sas_expander_page1 expander_pg1; |
1960 | u16 ioc_status, parent_handle, temp_handle; |
1961 | u64 sas_address, sas_address_parent = 0; |
1962 | int i; |
1963 | unsigned long flags; |
1964 | u8 port_id, link_rate; |
1965 | struct mpi3mr_sas_port *mr_sas_port = NULL; |
1966 | struct mpi3mr_hba_port *hba_port; |
1967 | u32 phynum_handle; |
1968 | int rc = 0; |
1969 | |
1970 | if (!handle) |
1971 | return -1; |
1972 | |
1973 | if (mrioc->reset_in_progress) |
1974 | return -1; |
1975 | |
1976 | if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, ioc_status: &ioc_status, exp_pg0: &expander_pg0, |
1977 | pg_sz: sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, form_spec: handle))) { |
1978 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
1979 | __FILE__, __LINE__, __func__); |
1980 | return -1; |
1981 | } |
1982 | |
1983 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
1984 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
1985 | __FILE__, __LINE__, __func__); |
1986 | return -1; |
1987 | } |
1988 | |
1989 | parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle); |
1990 | if (mpi3mr_get_sas_address(mrioc, handle: parent_handle, sas_address: &sas_address_parent) |
1991 | != 0) { |
1992 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
1993 | __FILE__, __LINE__, __func__); |
1994 | return -1; |
1995 | } |
1996 | |
1997 | port_id = expander_pg0.io_unit_port; |
1998 | hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id); |
1999 | if (!hba_port) { |
2000 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2001 | __FILE__, __LINE__, __func__); |
2002 | return -1; |
2003 | } |
2004 | |
2005 | if (sas_address_parent != mrioc->sas_hba.sas_address) { |
2006 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
2007 | sas_expander = |
2008 | mpi3mr_expander_find_by_sas_address(mrioc, |
2009 | sas_address: sas_address_parent, hba_port); |
2010 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
2011 | if (!sas_expander) { |
2012 | rc = mpi3mr_expander_add(mrioc, handle: parent_handle); |
2013 | if (rc != 0) |
2014 | return rc; |
2015 | } else { |
2016 | /* |
2017 | * When there is a parent expander present, update it's |
2018 | * phys where child expander is connected with the link |
2019 | * speed, attached dev handle and sas address. |
2020 | */ |
2021 | for (i = 0 ; i < sas_expander->num_phys ; i++) { |
2022 | phynum_handle = |
2023 | (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) | |
2024 | parent_handle; |
2025 | if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, |
2026 | ioc_status: &ioc_status, exp_pg1: &expander_pg1, |
2027 | pg_sz: sizeof(expander_pg1), |
2028 | MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM, |
2029 | form_spec: phynum_handle)) { |
2030 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2031 | __FILE__, __LINE__, __func__); |
2032 | rc = -1; |
2033 | return rc; |
2034 | } |
2035 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
2036 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2037 | __FILE__, __LINE__, __func__); |
2038 | rc = -1; |
2039 | return rc; |
2040 | } |
2041 | temp_handle = le16_to_cpu( |
2042 | expander_pg1.attached_dev_handle); |
2043 | if (temp_handle != handle) |
2044 | continue; |
2045 | link_rate = (expander_pg1.negotiated_link_rate & |
2046 | MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >> |
2047 | MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT; |
2048 | mpi3mr_update_links(mrioc, sas_address_parent, |
2049 | handle, phy_number: i, link_rate, hba_port); |
2050 | } |
2051 | } |
2052 | } |
2053 | |
2054 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
2055 | sas_address = le64_to_cpu(expander_pg0.sas_address); |
2056 | sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, |
2057 | sas_address, hba_port); |
2058 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
2059 | |
2060 | if (sas_expander) |
2061 | return 0; |
2062 | |
2063 | sas_expander = kzalloc(size: sizeof(struct mpi3mr_sas_node), |
2064 | GFP_KERNEL); |
2065 | if (!sas_expander) |
2066 | return -ENOMEM; |
2067 | |
2068 | sas_expander->handle = handle; |
2069 | sas_expander->num_phys = expander_pg0.num_phys; |
2070 | sas_expander->sas_address_parent = sas_address_parent; |
2071 | sas_expander->sas_address = sas_address; |
2072 | sas_expander->hba_port = hba_port; |
2073 | |
2074 | ioc_info(mrioc, |
2075 | "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n" , |
2076 | handle, parent_handle, (unsigned long long) |
2077 | sas_expander->sas_address, sas_expander->num_phys); |
2078 | |
2079 | if (!sas_expander->num_phys) { |
2080 | rc = -1; |
2081 | goto out_fail; |
2082 | } |
2083 | sas_expander->phy = kcalloc(n: sas_expander->num_phys, |
2084 | size: sizeof(struct mpi3mr_sas_phy), GFP_KERNEL); |
2085 | if (!sas_expander->phy) { |
2086 | rc = -1; |
2087 | goto out_fail; |
2088 | } |
2089 | |
2090 | INIT_LIST_HEAD(list: &sas_expander->sas_port_list); |
2091 | mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent, |
2092 | hba_port: sas_expander->hba_port); |
2093 | if (!mr_sas_port) { |
2094 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2095 | __FILE__, __LINE__, __func__); |
2096 | rc = -1; |
2097 | goto out_fail; |
2098 | } |
2099 | sas_expander->parent_dev = &mr_sas_port->rphy->dev; |
2100 | sas_expander->rphy = mr_sas_port->rphy; |
2101 | |
2102 | for (i = 0 ; i < sas_expander->num_phys ; i++) { |
2103 | phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) | |
2104 | handle; |
2105 | if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, ioc_status: &ioc_status, |
2106 | exp_pg1: &expander_pg1, pg_sz: sizeof(expander_pg1), |
2107 | MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM, |
2108 | form_spec: phynum_handle)) { |
2109 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2110 | __FILE__, __LINE__, __func__); |
2111 | rc = -1; |
2112 | goto out_fail; |
2113 | } |
2114 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
2115 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2116 | __FILE__, __LINE__, __func__); |
2117 | rc = -1; |
2118 | goto out_fail; |
2119 | } |
2120 | |
2121 | sas_expander->phy[i].handle = handle; |
2122 | sas_expander->phy[i].phy_id = i; |
2123 | sas_expander->phy[i].hba_port = hba_port; |
2124 | |
2125 | if ((mpi3mr_add_expander_phy(mrioc, mr_sas_phy: &sas_expander->phy[i], |
2126 | expander_pg1, parent_dev: sas_expander->parent_dev))) { |
2127 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2128 | __FILE__, __LINE__, __func__); |
2129 | rc = -1; |
2130 | goto out_fail; |
2131 | } |
2132 | } |
2133 | |
2134 | if (sas_expander->enclosure_handle) { |
2135 | enclosure_dev = |
2136 | mpi3mr_enclosure_find_by_handle(mrioc, |
2137 | handle: sas_expander->enclosure_handle); |
2138 | if (enclosure_dev) |
2139 | sas_expander->enclosure_logical_id = le64_to_cpu( |
2140 | enclosure_dev->pg0.enclosure_logical_id); |
2141 | } |
2142 | |
2143 | mpi3mr_expander_node_add(mrioc, sas_expander); |
2144 | return 0; |
2145 | |
2146 | out_fail: |
2147 | |
2148 | if (mr_sas_port) |
2149 | mpi3mr_sas_port_remove(mrioc, |
2150 | sas_address: sas_expander->sas_address, |
2151 | sas_address_parent, hba_port: sas_expander->hba_port); |
2152 | kfree(objp: sas_expander->phy); |
2153 | kfree(objp: sas_expander); |
2154 | return rc; |
2155 | } |
2156 | |
2157 | /** |
2158 | * mpi3mr_expander_node_remove - recursive removal of expander. |
2159 | * @mrioc: Adapter instance reference |
2160 | * @sas_expander: Expander device object |
2161 | * |
2162 | * Removes expander object and freeing associated memory from |
2163 | * the sas_expander_list and removes the same from SAS TL, if |
2164 | * one of the attached device is an expander then it recursively |
2165 | * removes the expander device too. |
2166 | * |
2167 | * Return nothing. |
2168 | */ |
2169 | void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc, |
2170 | struct mpi3mr_sas_node *sas_expander) |
2171 | { |
2172 | struct mpi3mr_sas_port *mr_sas_port, *next; |
2173 | unsigned long flags; |
2174 | u8 port_id; |
2175 | |
2176 | /* remove sibling ports attached to this expander */ |
2177 | list_for_each_entry_safe(mr_sas_port, next, |
2178 | &sas_expander->sas_port_list, port_list) { |
2179 | if (mrioc->reset_in_progress) |
2180 | return; |
2181 | if (mr_sas_port->remote_identify.device_type == |
2182 | SAS_END_DEVICE) |
2183 | mpi3mr_remove_device_by_sas_address(mrioc, |
2184 | sas_address: mr_sas_port->remote_identify.sas_address, |
2185 | hba_port: mr_sas_port->hba_port); |
2186 | else if (mr_sas_port->remote_identify.device_type == |
2187 | SAS_EDGE_EXPANDER_DEVICE || |
2188 | mr_sas_port->remote_identify.device_type == |
2189 | SAS_FANOUT_EXPANDER_DEVICE) |
2190 | mpi3mr_expander_remove(mrioc, |
2191 | sas_address: mr_sas_port->remote_identify.sas_address, |
2192 | hba_port: mr_sas_port->hba_port); |
2193 | } |
2194 | |
2195 | port_id = sas_expander->hba_port->port_id; |
2196 | mpi3mr_sas_port_remove(mrioc, sas_address: sas_expander->sas_address, |
2197 | sas_address_parent: sas_expander->sas_address_parent, hba_port: sas_expander->hba_port); |
2198 | |
2199 | ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n" , |
2200 | sas_expander->handle, (unsigned long long) |
2201 | sas_expander->sas_address, port_id); |
2202 | |
2203 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
2204 | list_del(entry: &sas_expander->list); |
2205 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
2206 | |
2207 | kfree(objp: sas_expander->phy); |
2208 | kfree(objp: sas_expander); |
2209 | } |
2210 | |
2211 | /** |
2212 | * mpi3mr_expander_remove - Remove expander object |
2213 | * @mrioc: Adapter instance reference |
2214 | * @sas_address: Remove expander sas_address |
2215 | * @hba_port: HBA port reference |
2216 | * |
2217 | * This function remove expander object, stored in |
2218 | * mrioc->sas_expander_list and removes it from the SAS TL by |
2219 | * calling mpi3mr_expander_node_remove(). |
2220 | * |
2221 | * Return: None |
2222 | */ |
2223 | void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address, |
2224 | struct mpi3mr_hba_port *hba_port) |
2225 | { |
2226 | struct mpi3mr_sas_node *sas_expander; |
2227 | unsigned long flags; |
2228 | |
2229 | if (mrioc->reset_in_progress) |
2230 | return; |
2231 | |
2232 | if (!hba_port) |
2233 | return; |
2234 | |
2235 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
2236 | sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, sas_address, |
2237 | hba_port); |
2238 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
2239 | if (sas_expander) |
2240 | mpi3mr_expander_node_remove(mrioc, sas_expander); |
2241 | |
2242 | } |
2243 | |
2244 | /** |
2245 | * mpi3mr_get_sas_negotiated_logical_linkrate - get linkrate |
2246 | * @mrioc: Adapter instance reference |
2247 | * @tgtdev: Target device |
2248 | * |
2249 | * This function identifies whether the target device is |
2250 | * attached directly or through expander and issues sas phy |
2251 | * page0 or expander phy page1 and gets the link rate, if there |
2252 | * is any failure in reading the pages then this returns link |
2253 | * rate of 1.5. |
2254 | * |
2255 | * Return: logical link rate. |
2256 | */ |
2257 | static u8 mpi3mr_get_sas_negotiated_logical_linkrate(struct mpi3mr_ioc *mrioc, |
2258 | struct mpi3mr_tgt_dev *tgtdev) |
2259 | { |
2260 | u8 link_rate = MPI3_SAS_NEG_LINK_RATE_1_5, phy_number; |
2261 | struct mpi3_sas_expander_page1 expander_pg1; |
2262 | struct mpi3_sas_phy_page0 phy_pg0; |
2263 | u32 phynum_handle; |
2264 | u16 ioc_status; |
2265 | |
2266 | phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id; |
2267 | if (!(tgtdev->devpg0_flag & MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED)) { |
2268 | phynum_handle = ((phy_number<<MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
2269 | | tgtdev->parent_handle); |
2270 | if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, ioc_status: &ioc_status, |
2271 | exp_pg1: &expander_pg1, pg_sz: sizeof(expander_pg1), |
2272 | MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM, |
2273 | form_spec: phynum_handle)) { |
2274 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2275 | __FILE__, __LINE__, __func__); |
2276 | goto out; |
2277 | } |
2278 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
2279 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2280 | __FILE__, __LINE__, __func__); |
2281 | goto out; |
2282 | } |
2283 | link_rate = (expander_pg1.negotiated_link_rate & |
2284 | MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >> |
2285 | MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT; |
2286 | goto out; |
2287 | } |
2288 | if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, ioc_status: &ioc_status, phy_pg0: &phy_pg0, |
2289 | pg_sz: sizeof(struct mpi3_sas_phy_page0), |
2290 | MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, form_spec: phy_number)) { |
2291 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2292 | __FILE__, __LINE__, __func__); |
2293 | goto out; |
2294 | } |
2295 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
2296 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2297 | __FILE__, __LINE__, __func__); |
2298 | goto out; |
2299 | } |
2300 | link_rate = (phy_pg0.negotiated_link_rate & |
2301 | MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >> |
2302 | MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT; |
2303 | out: |
2304 | return link_rate; |
2305 | } |
2306 | |
2307 | /** |
2308 | * mpi3mr_report_tgtdev_to_sas_transport - expose dev to SAS TL |
2309 | * @mrioc: Adapter instance reference |
2310 | * @tgtdev: Target device |
2311 | * |
2312 | * This function exposes the target device after |
2313 | * preparing host_phy, setting up link rate etc. |
2314 | * |
2315 | * Return: 0 on success, non-zero for failure. |
2316 | */ |
2317 | int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc, |
2318 | struct mpi3mr_tgt_dev *tgtdev) |
2319 | { |
2320 | int retval = 0; |
2321 | u8 link_rate, parent_phy_number; |
2322 | u64 sas_address_parent, sas_address; |
2323 | struct mpi3mr_hba_port *hba_port; |
2324 | u8 port_id; |
2325 | |
2326 | if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) || |
2327 | !mrioc->sas_transport_enabled) |
2328 | return -1; |
2329 | |
2330 | sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address; |
2331 | if (!mrioc->sas_hba.num_phys) |
2332 | mpi3mr_sas_host_add(mrioc); |
2333 | else |
2334 | mpi3mr_sas_host_refresh(mrioc); |
2335 | |
2336 | if (mpi3mr_get_sas_address(mrioc, handle: tgtdev->parent_handle, |
2337 | sas_address: &sas_address_parent) != 0) { |
2338 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2339 | __FILE__, __LINE__, __func__); |
2340 | return -1; |
2341 | } |
2342 | tgtdev->dev_spec.sas_sata_inf.sas_address_parent = sas_address_parent; |
2343 | |
2344 | parent_phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id; |
2345 | port_id = tgtdev->io_unit_port; |
2346 | |
2347 | hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id); |
2348 | if (!hba_port) { |
2349 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2350 | __FILE__, __LINE__, __func__); |
2351 | return -1; |
2352 | } |
2353 | tgtdev->dev_spec.sas_sata_inf.hba_port = hba_port; |
2354 | |
2355 | link_rate = mpi3mr_get_sas_negotiated_logical_linkrate(mrioc, tgtdev); |
2356 | |
2357 | mpi3mr_update_links(mrioc, sas_address_parent, handle: tgtdev->dev_handle, |
2358 | phy_number: parent_phy_number, link_rate, hba_port); |
2359 | |
2360 | tgtdev->host_exposed = 1; |
2361 | if (!mpi3mr_sas_port_add(mrioc, handle: tgtdev->dev_handle, |
2362 | sas_address_parent, hba_port)) { |
2363 | retval = -1; |
2364 | } else if ((!tgtdev->starget) && (!mrioc->is_driver_loading)) { |
2365 | mpi3mr_sas_port_remove(mrioc, sas_address, |
2366 | sas_address_parent, hba_port); |
2367 | retval = -1; |
2368 | } |
2369 | if (retval) { |
2370 | tgtdev->dev_spec.sas_sata_inf.hba_port = NULL; |
2371 | tgtdev->host_exposed = 0; |
2372 | } |
2373 | return retval; |
2374 | } |
2375 | |
2376 | /** |
2377 | * mpi3mr_remove_tgtdev_from_sas_transport - remove from SAS TL |
2378 | * @mrioc: Adapter instance reference |
2379 | * @tgtdev: Target device |
2380 | * |
2381 | * This function removes the target device |
2382 | * |
2383 | * Return: None. |
2384 | */ |
2385 | void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc, |
2386 | struct mpi3mr_tgt_dev *tgtdev) |
2387 | { |
2388 | u64 sas_address_parent, sas_address; |
2389 | struct mpi3mr_hba_port *hba_port; |
2390 | |
2391 | if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) || |
2392 | !mrioc->sas_transport_enabled) |
2393 | return; |
2394 | |
2395 | hba_port = tgtdev->dev_spec.sas_sata_inf.hba_port; |
2396 | sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address; |
2397 | sas_address_parent = tgtdev->dev_spec.sas_sata_inf.sas_address_parent; |
2398 | mpi3mr_sas_port_remove(mrioc, sas_address, sas_address_parent, |
2399 | hba_port); |
2400 | tgtdev->host_exposed = 0; |
2401 | tgtdev->dev_spec.sas_sata_inf.hba_port = NULL; |
2402 | } |
2403 | |
2404 | /** |
2405 | * mpi3mr_get_port_id_by_sas_phy - Get port ID of the given phy |
2406 | * @phy: SAS transport layer phy object |
2407 | * |
2408 | * Return: Port number for valid ID else 0xFFFF |
2409 | */ |
2410 | static inline u8 mpi3mr_get_port_id_by_sas_phy(struct sas_phy *phy) |
2411 | { |
2412 | u8 port_id = 0xFF; |
2413 | struct mpi3mr_hba_port *hba_port = phy->hostdata; |
2414 | |
2415 | if (hba_port) |
2416 | port_id = hba_port->port_id; |
2417 | |
2418 | return port_id; |
2419 | } |
2420 | |
2421 | /** |
2422 | * mpi3mr_get_port_id_by_rphy - Get Port number from SAS rphy |
2423 | * |
2424 | * @mrioc: Adapter instance reference |
2425 | * @rphy: SAS transport layer remote phy object |
2426 | * |
2427 | * Retrieves HBA port number in which the device pointed by the |
2428 | * rphy object is attached with. |
2429 | * |
2430 | * Return: Valid port number on success else OxFFFF. |
2431 | */ |
2432 | static u8 mpi3mr_get_port_id_by_rphy(struct mpi3mr_ioc *mrioc, struct sas_rphy *rphy) |
2433 | { |
2434 | struct mpi3mr_sas_node *sas_expander; |
2435 | struct mpi3mr_tgt_dev *tgtdev; |
2436 | unsigned long flags; |
2437 | u8 port_id = 0xFF; |
2438 | |
2439 | if (!rphy) |
2440 | return port_id; |
2441 | |
2442 | if (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE || |
2443 | rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) { |
2444 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
2445 | list_for_each_entry(sas_expander, &mrioc->sas_expander_list, |
2446 | list) { |
2447 | if (sas_expander->rphy == rphy) { |
2448 | port_id = sas_expander->hba_port->port_id; |
2449 | break; |
2450 | } |
2451 | } |
2452 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
2453 | } else if (rphy->identify.device_type == SAS_END_DEVICE) { |
2454 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
2455 | |
2456 | tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, |
2457 | sas_address: rphy->identify.sas_address, rphy); |
2458 | if (tgtdev && tgtdev->dev_spec.sas_sata_inf.hba_port) { |
2459 | port_id = |
2460 | tgtdev->dev_spec.sas_sata_inf.hba_port->port_id; |
2461 | mpi3mr_tgtdev_put(s: tgtdev); |
2462 | } |
2463 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
2464 | } |
2465 | return port_id; |
2466 | } |
2467 | |
2468 | static inline struct mpi3mr_ioc *phy_to_mrioc(struct sas_phy *phy) |
2469 | { |
2470 | struct Scsi_Host *shost = dev_to_shost(dev: phy->dev.parent); |
2471 | |
2472 | return shost_priv(shost); |
2473 | } |
2474 | |
2475 | static inline struct mpi3mr_ioc *rphy_to_mrioc(struct sas_rphy *rphy) |
2476 | { |
2477 | struct Scsi_Host *shost = dev_to_shost(dev: rphy->dev.parent->parent); |
2478 | |
2479 | return shost_priv(shost); |
2480 | } |
2481 | |
2482 | /* report phy error log structure */ |
2483 | struct phy_error_log_request { |
2484 | u8 smp_frame_type; /* 0x40 */ |
2485 | u8 function; /* 0x11 */ |
2486 | u8 allocated_response_length; |
2487 | u8 request_length; /* 02 */ |
2488 | u8 reserved_1[5]; |
2489 | u8 phy_identifier; |
2490 | u8 reserved_2[2]; |
2491 | }; |
2492 | |
2493 | /* report phy error log reply structure */ |
2494 | struct phy_error_log_reply { |
2495 | u8 smp_frame_type; /* 0x41 */ |
2496 | u8 function; /* 0x11 */ |
2497 | u8 function_result; |
2498 | u8 response_length; |
2499 | __be16 expander_change_count; |
2500 | u8 reserved_1[3]; |
2501 | u8 phy_identifier; |
2502 | u8 reserved_2[2]; |
2503 | __be32 invalid_dword; |
2504 | __be32 running_disparity_error; |
2505 | __be32 loss_of_dword_sync; |
2506 | __be32 phy_reset_problem; |
2507 | }; |
2508 | |
2509 | |
2510 | /** |
2511 | * mpi3mr_get_expander_phy_error_log - return expander counters: |
2512 | * @mrioc: Adapter instance reference |
2513 | * @phy: The SAS transport layer phy object |
2514 | * |
2515 | * Return: 0 for success, non-zero for failure. |
2516 | * |
2517 | */ |
2518 | static int mpi3mr_get_expander_phy_error_log(struct mpi3mr_ioc *mrioc, |
2519 | struct sas_phy *phy) |
2520 | { |
2521 | struct mpi3_smp_passthrough_request mpi_request; |
2522 | struct mpi3_smp_passthrough_reply mpi_reply; |
2523 | struct phy_error_log_request *phy_error_log_request; |
2524 | struct phy_error_log_reply *phy_error_log_reply; |
2525 | int rc; |
2526 | void *psge; |
2527 | void *data_out = NULL; |
2528 | dma_addr_t data_out_dma, data_in_dma; |
2529 | u32 data_out_sz, data_in_sz, sz; |
2530 | u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST; |
2531 | u16 request_sz = sizeof(struct mpi3_smp_passthrough_request); |
2532 | u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply); |
2533 | u16 ioc_status; |
2534 | |
2535 | if (mrioc->reset_in_progress) { |
2536 | ioc_err(mrioc, "%s: host reset in progress!\n" , __func__); |
2537 | return -EFAULT; |
2538 | } |
2539 | |
2540 | data_out_sz = sizeof(struct phy_error_log_request); |
2541 | data_in_sz = sizeof(struct phy_error_log_reply); |
2542 | sz = data_out_sz + data_in_sz; |
2543 | data_out = dma_alloc_coherent(dev: &mrioc->pdev->dev, size: sz, dma_handle: &data_out_dma, |
2544 | GFP_KERNEL); |
2545 | if (!data_out) { |
2546 | rc = -ENOMEM; |
2547 | goto out; |
2548 | } |
2549 | |
2550 | data_in_dma = data_out_dma + data_out_sz; |
2551 | phy_error_log_reply = data_out + data_out_sz; |
2552 | |
2553 | rc = -EINVAL; |
2554 | memset(data_out, 0, sz); |
2555 | phy_error_log_request = data_out; |
2556 | phy_error_log_request->smp_frame_type = 0x40; |
2557 | phy_error_log_request->function = 0x11; |
2558 | phy_error_log_request->request_length = 2; |
2559 | phy_error_log_request->allocated_response_length = 0; |
2560 | phy_error_log_request->phy_identifier = phy->number; |
2561 | |
2562 | memset(&mpi_request, 0, request_sz); |
2563 | memset(&mpi_reply, 0, reply_sz); |
2564 | mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS); |
2565 | mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH; |
2566 | mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy); |
2567 | mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address); |
2568 | |
2569 | psge = &mpi_request.request_sge; |
2570 | mpi3mr_add_sg_single(paddr: psge, flags: sgl_flags, length: data_out_sz, dma_addr: data_out_dma); |
2571 | |
2572 | psge = &mpi_request.response_sge; |
2573 | mpi3mr_add_sg_single(paddr: psge, flags: sgl_flags, length: data_in_sz, dma_addr: data_in_dma); |
2574 | |
2575 | dprint_transport_info(mrioc, |
2576 | "sending phy error log SMP request to sas_address(0x%016llx), phy_id(%d)\n" , |
2577 | (unsigned long long)phy->identify.sas_address, phy->number); |
2578 | |
2579 | if (mpi3mr_post_transport_req(mrioc, request: &mpi_request, request_sz, |
2580 | reply: &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, ioc_status: &ioc_status)) |
2581 | goto out; |
2582 | |
2583 | dprint_transport_info(mrioc, |
2584 | "phy error log SMP request completed with ioc_status(0x%04x)\n" , |
2585 | ioc_status); |
2586 | |
2587 | if (ioc_status == MPI3_IOCSTATUS_SUCCESS) { |
2588 | dprint_transport_info(mrioc, |
2589 | "phy error log - reply data transfer size(%d)\n" , |
2590 | le16_to_cpu(mpi_reply.response_data_length)); |
2591 | |
2592 | if (le16_to_cpu(mpi_reply.response_data_length) != |
2593 | sizeof(struct phy_error_log_reply)) |
2594 | goto out; |
2595 | |
2596 | dprint_transport_info(mrioc, |
2597 | "phy error log - function_result(%d)\n" , |
2598 | phy_error_log_reply->function_result); |
2599 | |
2600 | phy->invalid_dword_count = |
2601 | be32_to_cpu(phy_error_log_reply->invalid_dword); |
2602 | phy->running_disparity_error_count = |
2603 | be32_to_cpu(phy_error_log_reply->running_disparity_error); |
2604 | phy->loss_of_dword_sync_count = |
2605 | be32_to_cpu(phy_error_log_reply->loss_of_dword_sync); |
2606 | phy->phy_reset_problem_count = |
2607 | be32_to_cpu(phy_error_log_reply->phy_reset_problem); |
2608 | rc = 0; |
2609 | } |
2610 | |
2611 | out: |
2612 | if (data_out) |
2613 | dma_free_coherent(dev: &mrioc->pdev->dev, size: sz, cpu_addr: data_out, |
2614 | dma_handle: data_out_dma); |
2615 | |
2616 | return rc; |
2617 | } |
2618 | |
2619 | /** |
2620 | * mpi3mr_transport_get_linkerrors - return phy error counters |
2621 | * @phy: The SAS transport layer phy object |
2622 | * |
2623 | * This function retrieves the phy error log information of the |
2624 | * HBA or expander for which the phy belongs to |
2625 | * |
2626 | * Return: 0 for success, non-zero for failure. |
2627 | */ |
2628 | static int mpi3mr_transport_get_linkerrors(struct sas_phy *phy) |
2629 | { |
2630 | struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy); |
2631 | struct mpi3_sas_phy_page1 phy_pg1; |
2632 | int rc = 0; |
2633 | u16 ioc_status; |
2634 | |
2635 | rc = mpi3mr_parent_present(mrioc, phy); |
2636 | if (rc) |
2637 | return rc; |
2638 | |
2639 | if (phy->identify.sas_address != mrioc->sas_hba.sas_address) |
2640 | return mpi3mr_get_expander_phy_error_log(mrioc, phy); |
2641 | |
2642 | memset(&phy_pg1, 0, sizeof(struct mpi3_sas_phy_page1)); |
2643 | /* get hba phy error logs */ |
2644 | if ((mpi3mr_cfg_get_sas_phy_pg1(mrioc, ioc_status: &ioc_status, phy_pg1: &phy_pg1, |
2645 | pg_sz: sizeof(struct mpi3_sas_phy_page1), |
2646 | MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, form_spec: phy->number))) { |
2647 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2648 | __FILE__, __LINE__, __func__); |
2649 | return -ENXIO; |
2650 | } |
2651 | |
2652 | if (ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
2653 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2654 | __FILE__, __LINE__, __func__); |
2655 | return -ENXIO; |
2656 | } |
2657 | phy->invalid_dword_count = le32_to_cpu(phy_pg1.invalid_dword_count); |
2658 | phy->running_disparity_error_count = |
2659 | le32_to_cpu(phy_pg1.running_disparity_error_count); |
2660 | phy->loss_of_dword_sync_count = |
2661 | le32_to_cpu(phy_pg1.loss_dword_synch_count); |
2662 | phy->phy_reset_problem_count = |
2663 | le32_to_cpu(phy_pg1.phy_reset_problem_count); |
2664 | return 0; |
2665 | } |
2666 | |
2667 | /** |
2668 | * mpi3mr_transport_get_enclosure_identifier - Get Enclosure ID |
2669 | * @rphy: The SAS transport layer remote phy object |
2670 | * @identifier: Enclosure identifier to be returned |
2671 | * |
2672 | * Returns the enclosure id for the device pointed by the remote |
2673 | * phy object. |
2674 | * |
2675 | * Return: 0 on success or -ENXIO |
2676 | */ |
2677 | static int |
2678 | mpi3mr_transport_get_enclosure_identifier(struct sas_rphy *rphy, |
2679 | u64 *identifier) |
2680 | { |
2681 | struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy); |
2682 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
2683 | unsigned long flags; |
2684 | int rc; |
2685 | |
2686 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
2687 | tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, |
2688 | sas_address: rphy->identify.sas_address, rphy); |
2689 | if (tgtdev) { |
2690 | *identifier = |
2691 | tgtdev->enclosure_logical_id; |
2692 | rc = 0; |
2693 | mpi3mr_tgtdev_put(s: tgtdev); |
2694 | } else { |
2695 | *identifier = 0; |
2696 | rc = -ENXIO; |
2697 | } |
2698 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
2699 | |
2700 | return rc; |
2701 | } |
2702 | |
2703 | /** |
2704 | * mpi3mr_transport_get_bay_identifier - Get bay ID |
2705 | * @rphy: The SAS transport layer remote phy object |
2706 | * |
2707 | * Returns the slot id for the device pointed by the remote phy |
2708 | * object. |
2709 | * |
2710 | * Return: Valid slot ID on success or -ENXIO |
2711 | */ |
2712 | static int |
2713 | mpi3mr_transport_get_bay_identifier(struct sas_rphy *rphy) |
2714 | { |
2715 | struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy); |
2716 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
2717 | unsigned long flags; |
2718 | int rc; |
2719 | |
2720 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
2721 | tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, |
2722 | sas_address: rphy->identify.sas_address, rphy); |
2723 | if (tgtdev) { |
2724 | rc = tgtdev->slot; |
2725 | mpi3mr_tgtdev_put(s: tgtdev); |
2726 | } else |
2727 | rc = -ENXIO; |
2728 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
2729 | |
2730 | return rc; |
2731 | } |
2732 | |
2733 | /* phy control request structure */ |
2734 | struct phy_control_request { |
2735 | u8 smp_frame_type; /* 0x40 */ |
2736 | u8 function; /* 0x91 */ |
2737 | u8 allocated_response_length; |
2738 | u8 request_length; /* 0x09 */ |
2739 | u16 expander_change_count; |
2740 | u8 reserved_1[3]; |
2741 | u8 phy_identifier; |
2742 | u8 phy_operation; |
2743 | u8 reserved_2[13]; |
2744 | u64 attached_device_name; |
2745 | u8 programmed_min_physical_link_rate; |
2746 | u8 programmed_max_physical_link_rate; |
2747 | u8 reserved_3[6]; |
2748 | }; |
2749 | |
2750 | /* phy control reply structure */ |
2751 | struct phy_control_reply { |
2752 | u8 smp_frame_type; /* 0x41 */ |
2753 | u8 function; /* 0x11 */ |
2754 | u8 function_result; |
2755 | u8 response_length; |
2756 | }; |
2757 | |
2758 | #define SMP_PHY_CONTROL_LINK_RESET (0x01) |
2759 | #define SMP_PHY_CONTROL_HARD_RESET (0x02) |
2760 | #define SMP_PHY_CONTROL_DISABLE (0x03) |
2761 | |
2762 | /** |
2763 | * mpi3mr_expander_phy_control - expander phy control |
2764 | * @mrioc: Adapter instance reference |
2765 | * @phy: The SAS transport layer phy object |
2766 | * @phy_operation: The phy operation to be executed |
2767 | * |
2768 | * Issues SMP passthru phy control request to execute a specific |
2769 | * phy operation for a given expander device. |
2770 | * |
2771 | * Return: 0 for success, non-zero for failure. |
2772 | */ |
2773 | static int |
2774 | mpi3mr_expander_phy_control(struct mpi3mr_ioc *mrioc, |
2775 | struct sas_phy *phy, u8 phy_operation) |
2776 | { |
2777 | struct mpi3_smp_passthrough_request mpi_request; |
2778 | struct mpi3_smp_passthrough_reply mpi_reply; |
2779 | struct phy_control_request *phy_control_request; |
2780 | struct phy_control_reply *phy_control_reply; |
2781 | int rc; |
2782 | void *psge; |
2783 | void *data_out = NULL; |
2784 | dma_addr_t data_out_dma; |
2785 | dma_addr_t data_in_dma; |
2786 | size_t data_in_sz; |
2787 | size_t data_out_sz; |
2788 | u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST; |
2789 | u16 request_sz = sizeof(struct mpi3_smp_passthrough_request); |
2790 | u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply); |
2791 | u16 ioc_status; |
2792 | u16 sz; |
2793 | |
2794 | if (mrioc->reset_in_progress) { |
2795 | ioc_err(mrioc, "%s: host reset in progress!\n" , __func__); |
2796 | return -EFAULT; |
2797 | } |
2798 | |
2799 | data_out_sz = sizeof(struct phy_control_request); |
2800 | data_in_sz = sizeof(struct phy_control_reply); |
2801 | sz = data_out_sz + data_in_sz; |
2802 | data_out = dma_alloc_coherent(dev: &mrioc->pdev->dev, size: sz, dma_handle: &data_out_dma, |
2803 | GFP_KERNEL); |
2804 | if (!data_out) { |
2805 | rc = -ENOMEM; |
2806 | goto out; |
2807 | } |
2808 | |
2809 | data_in_dma = data_out_dma + data_out_sz; |
2810 | phy_control_reply = data_out + data_out_sz; |
2811 | |
2812 | rc = -EINVAL; |
2813 | memset(data_out, 0, sz); |
2814 | |
2815 | phy_control_request = data_out; |
2816 | phy_control_request->smp_frame_type = 0x40; |
2817 | phy_control_request->function = 0x91; |
2818 | phy_control_request->request_length = 9; |
2819 | phy_control_request->allocated_response_length = 0; |
2820 | phy_control_request->phy_identifier = phy->number; |
2821 | phy_control_request->phy_operation = phy_operation; |
2822 | phy_control_request->programmed_min_physical_link_rate = |
2823 | phy->minimum_linkrate << 4; |
2824 | phy_control_request->programmed_max_physical_link_rate = |
2825 | phy->maximum_linkrate << 4; |
2826 | |
2827 | memset(&mpi_request, 0, request_sz); |
2828 | memset(&mpi_reply, 0, reply_sz); |
2829 | mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS); |
2830 | mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH; |
2831 | mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy); |
2832 | mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address); |
2833 | |
2834 | psge = &mpi_request.request_sge; |
2835 | mpi3mr_add_sg_single(paddr: psge, flags: sgl_flags, length: data_out_sz, dma_addr: data_out_dma); |
2836 | |
2837 | psge = &mpi_request.response_sge; |
2838 | mpi3mr_add_sg_single(paddr: psge, flags: sgl_flags, length: data_in_sz, dma_addr: data_in_dma); |
2839 | |
2840 | dprint_transport_info(mrioc, |
2841 | "sending phy control SMP request to sas_address(0x%016llx), phy_id(%d) opcode(%d)\n" , |
2842 | (unsigned long long)phy->identify.sas_address, phy->number, |
2843 | phy_operation); |
2844 | |
2845 | if (mpi3mr_post_transport_req(mrioc, request: &mpi_request, request_sz, |
2846 | reply: &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, ioc_status: &ioc_status)) |
2847 | goto out; |
2848 | |
2849 | dprint_transport_info(mrioc, |
2850 | "phy control SMP request completed with ioc_status(0x%04x)\n" , |
2851 | ioc_status); |
2852 | |
2853 | if (ioc_status == MPI3_IOCSTATUS_SUCCESS) { |
2854 | dprint_transport_info(mrioc, |
2855 | "phy control - reply data transfer size(%d)\n" , |
2856 | le16_to_cpu(mpi_reply.response_data_length)); |
2857 | |
2858 | if (le16_to_cpu(mpi_reply.response_data_length) != |
2859 | sizeof(struct phy_control_reply)) |
2860 | goto out; |
2861 | dprint_transport_info(mrioc, |
2862 | "phy control - function_result(%d)\n" , |
2863 | phy_control_reply->function_result); |
2864 | rc = 0; |
2865 | } |
2866 | out: |
2867 | if (data_out) |
2868 | dma_free_coherent(dev: &mrioc->pdev->dev, size: sz, cpu_addr: data_out, |
2869 | dma_handle: data_out_dma); |
2870 | |
2871 | return rc; |
2872 | } |
2873 | |
2874 | /** |
2875 | * mpi3mr_transport_phy_reset - Reset a given phy |
2876 | * @phy: The SAS transport layer phy object |
2877 | * @hard_reset: Flag to indicate the type of reset |
2878 | * |
2879 | * Return: 0 for success, non-zero for failure. |
2880 | */ |
2881 | static int |
2882 | mpi3mr_transport_phy_reset(struct sas_phy *phy, int hard_reset) |
2883 | { |
2884 | struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy); |
2885 | struct mpi3_iounit_control_request mpi_request; |
2886 | struct mpi3_iounit_control_reply mpi_reply; |
2887 | u16 request_sz = sizeof(struct mpi3_iounit_control_request); |
2888 | u16 reply_sz = sizeof(struct mpi3_iounit_control_reply); |
2889 | int rc = 0; |
2890 | u16 ioc_status; |
2891 | |
2892 | rc = mpi3mr_parent_present(mrioc, phy); |
2893 | if (rc) |
2894 | return rc; |
2895 | |
2896 | /* handle expander phys */ |
2897 | if (phy->identify.sas_address != mrioc->sas_hba.sas_address) |
2898 | return mpi3mr_expander_phy_control(mrioc, phy, |
2899 | phy_operation: (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET : |
2900 | SMP_PHY_CONTROL_LINK_RESET); |
2901 | |
2902 | /* handle hba phys */ |
2903 | memset(&mpi_request, 0, request_sz); |
2904 | mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS); |
2905 | mpi_request.function = MPI3_FUNCTION_IO_UNIT_CONTROL; |
2906 | mpi_request.operation = MPI3_CTRL_OP_SAS_PHY_CONTROL; |
2907 | mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_ACTION_INDEX] = |
2908 | (hard_reset ? MPI3_CTRL_ACTION_HARD_RESET : |
2909 | MPI3_CTRL_ACTION_LINK_RESET); |
2910 | mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_PHY_INDEX] = |
2911 | phy->number; |
2912 | |
2913 | dprint_transport_info(mrioc, |
2914 | "sending phy reset request to sas_address(0x%016llx), phy_id(%d) hard_reset(%d)\n" , |
2915 | (unsigned long long)phy->identify.sas_address, phy->number, |
2916 | hard_reset); |
2917 | |
2918 | if (mpi3mr_post_transport_req(mrioc, request: &mpi_request, request_sz, |
2919 | reply: &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, ioc_status: &ioc_status)) { |
2920 | rc = -EAGAIN; |
2921 | goto out; |
2922 | } |
2923 | |
2924 | dprint_transport_info(mrioc, |
2925 | "phy reset request completed with ioc_status(0x%04x)\n" , |
2926 | ioc_status); |
2927 | out: |
2928 | return rc; |
2929 | } |
2930 | |
2931 | /** |
2932 | * mpi3mr_transport_phy_enable - enable/disable phys |
2933 | * @phy: The SAS transport layer phy object |
2934 | * @enable: flag to enable/disable, enable phy when true |
2935 | * |
2936 | * This function enables/disables a given by executing required |
2937 | * configuration page changes or expander phy control command |
2938 | * |
2939 | * Return: 0 for success, non-zero for failure. |
2940 | */ |
2941 | static int |
2942 | mpi3mr_transport_phy_enable(struct sas_phy *phy, int enable) |
2943 | { |
2944 | struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy); |
2945 | struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL; |
2946 | struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL; |
2947 | u16 sz; |
2948 | int rc = 0; |
2949 | int i, discovery_active; |
2950 | |
2951 | rc = mpi3mr_parent_present(mrioc, phy); |
2952 | if (rc) |
2953 | return rc; |
2954 | |
2955 | /* handle expander phys */ |
2956 | if (phy->identify.sas_address != mrioc->sas_hba.sas_address) |
2957 | return mpi3mr_expander_phy_control(mrioc, phy, |
2958 | phy_operation: (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET : |
2959 | SMP_PHY_CONTROL_DISABLE); |
2960 | |
2961 | /* handle hba phys */ |
2962 | sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) + |
2963 | (mrioc->sas_hba.num_phys * |
2964 | sizeof(struct mpi3_sas_io_unit0_phy_data)); |
2965 | sas_io_unit_pg0 = kzalloc(size: sz, GFP_KERNEL); |
2966 | if (!sas_io_unit_pg0) { |
2967 | rc = -ENOMEM; |
2968 | goto out; |
2969 | } |
2970 | if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, pg_sz: sz)) { |
2971 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2972 | __FILE__, __LINE__, __func__); |
2973 | rc = -ENXIO; |
2974 | goto out; |
2975 | } |
2976 | |
2977 | /* unable to enable/disable phys when discovery is active */ |
2978 | for (i = 0, discovery_active = 0; i < mrioc->sas_hba.num_phys ; i++) { |
2979 | if (sas_io_unit_pg0->phy_data[i].port_flags & |
2980 | MPI3_SASIOUNIT0_PORTFLAGS_DISC_IN_PROGRESS) { |
2981 | ioc_err(mrioc, |
2982 | "discovery is active on port = %d, phy = %d\n" |
2983 | "\tunable to enable/disable phys, try again later!\n" , |
2984 | sas_io_unit_pg0->phy_data[i].io_unit_port, i); |
2985 | discovery_active = 1; |
2986 | } |
2987 | } |
2988 | |
2989 | if (discovery_active) { |
2990 | rc = -EAGAIN; |
2991 | goto out; |
2992 | } |
2993 | |
2994 | if ((sas_io_unit_pg0->phy_data[phy->number].phy_flags & |
2995 | (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY | |
2996 | MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))) { |
2997 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
2998 | __FILE__, __LINE__, __func__); |
2999 | rc = -ENXIO; |
3000 | goto out; |
3001 | } |
3002 | |
3003 | /* read sas_iounit page 1 */ |
3004 | sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) + |
3005 | (mrioc->sas_hba.num_phys * |
3006 | sizeof(struct mpi3_sas_io_unit1_phy_data)); |
3007 | sas_io_unit_pg1 = kzalloc(size: sz, GFP_KERNEL); |
3008 | if (!sas_io_unit_pg1) { |
3009 | rc = -ENOMEM; |
3010 | goto out; |
3011 | } |
3012 | |
3013 | if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, pg_sz: sz)) { |
3014 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
3015 | __FILE__, __LINE__, __func__); |
3016 | rc = -ENXIO; |
3017 | goto out; |
3018 | } |
3019 | |
3020 | if (enable) |
3021 | sas_io_unit_pg1->phy_data[phy->number].phy_flags |
3022 | &= ~MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; |
3023 | else |
3024 | sas_io_unit_pg1->phy_data[phy->number].phy_flags |
3025 | |= MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE; |
3026 | |
3027 | mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, pg_sz: sz); |
3028 | |
3029 | /* link reset */ |
3030 | if (enable) |
3031 | mpi3mr_transport_phy_reset(phy, hard_reset: 0); |
3032 | |
3033 | out: |
3034 | kfree(objp: sas_io_unit_pg1); |
3035 | kfree(objp: sas_io_unit_pg0); |
3036 | return rc; |
3037 | } |
3038 | |
3039 | /** |
3040 | * mpi3mr_transport_phy_speed - set phy min/max speed |
3041 | * @phy: The SAS transport later phy object |
3042 | * @rates: Rates defined as in sas_phy_linkrates |
3043 | * |
3044 | * This function sets the link rates given in the rates |
3045 | * argument to the given phy by executing required configuration |
3046 | * page changes or expander phy control command |
3047 | * |
3048 | * Return: 0 for success, non-zero for failure. |
3049 | */ |
3050 | static int |
3051 | mpi3mr_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) |
3052 | { |
3053 | struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy); |
3054 | struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL; |
3055 | struct mpi3_sas_phy_page0 phy_pg0; |
3056 | u16 sz, ioc_status; |
3057 | int rc = 0; |
3058 | |
3059 | rc = mpi3mr_parent_present(mrioc, phy); |
3060 | if (rc) |
3061 | return rc; |
3062 | |
3063 | if (!rates->minimum_linkrate) |
3064 | rates->minimum_linkrate = phy->minimum_linkrate; |
3065 | else if (rates->minimum_linkrate < phy->minimum_linkrate_hw) |
3066 | rates->minimum_linkrate = phy->minimum_linkrate_hw; |
3067 | |
3068 | if (!rates->maximum_linkrate) |
3069 | rates->maximum_linkrate = phy->maximum_linkrate; |
3070 | else if (rates->maximum_linkrate > phy->maximum_linkrate_hw) |
3071 | rates->maximum_linkrate = phy->maximum_linkrate_hw; |
3072 | |
3073 | /* handle expander phys */ |
3074 | if (phy->identify.sas_address != mrioc->sas_hba.sas_address) { |
3075 | phy->minimum_linkrate = rates->minimum_linkrate; |
3076 | phy->maximum_linkrate = rates->maximum_linkrate; |
3077 | return mpi3mr_expander_phy_control(mrioc, phy, |
3078 | SMP_PHY_CONTROL_LINK_RESET); |
3079 | } |
3080 | |
3081 | /* handle hba phys */ |
3082 | sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) + |
3083 | (mrioc->sas_hba.num_phys * |
3084 | sizeof(struct mpi3_sas_io_unit1_phy_data)); |
3085 | sas_io_unit_pg1 = kzalloc(size: sz, GFP_KERNEL); |
3086 | if (!sas_io_unit_pg1) { |
3087 | rc = -ENOMEM; |
3088 | goto out; |
3089 | } |
3090 | |
3091 | if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, pg_sz: sz)) { |
3092 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
3093 | __FILE__, __LINE__, __func__); |
3094 | rc = -ENXIO; |
3095 | goto out; |
3096 | } |
3097 | |
3098 | sas_io_unit_pg1->phy_data[phy->number].max_min_link_rate = |
3099 | (rates->minimum_linkrate + (rates->maximum_linkrate << 4)); |
3100 | |
3101 | if (mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, pg_sz: sz)) { |
3102 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
3103 | __FILE__, __LINE__, __func__); |
3104 | rc = -ENXIO; |
3105 | goto out; |
3106 | } |
3107 | |
3108 | /* link reset */ |
3109 | mpi3mr_transport_phy_reset(phy, hard_reset: 0); |
3110 | |
3111 | /* read phy page 0, then update the rates in the sas transport phy */ |
3112 | if (!mpi3mr_cfg_get_sas_phy_pg0(mrioc, ioc_status: &ioc_status, phy_pg0: &phy_pg0, |
3113 | pg_sz: sizeof(struct mpi3_sas_phy_page0), |
3114 | MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, form_spec: phy->number) && |
3115 | (ioc_status == MPI3_IOCSTATUS_SUCCESS)) { |
3116 | phy->minimum_linkrate = mpi3mr_convert_phy_link_rate( |
3117 | link_rate: phy_pg0.programmed_link_rate & |
3118 | MPI3_SAS_PRATE_MIN_RATE_MASK); |
3119 | phy->maximum_linkrate = mpi3mr_convert_phy_link_rate( |
3120 | link_rate: phy_pg0.programmed_link_rate >> 4); |
3121 | phy->negotiated_linkrate = |
3122 | mpi3mr_convert_phy_link_rate( |
3123 | link_rate: (phy_pg0.negotiated_link_rate & |
3124 | MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) |
3125 | >> MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT); |
3126 | } |
3127 | |
3128 | out: |
3129 | kfree(objp: sas_io_unit_pg1); |
3130 | return rc; |
3131 | } |
3132 | |
3133 | /** |
3134 | * mpi3mr_map_smp_buffer - map BSG dma buffer |
3135 | * @dev: Generic device reference |
3136 | * @buf: BSG buffer pointer |
3137 | * @dma_addr: Physical address holder |
3138 | * @dma_len: Mapped DMA buffer length. |
3139 | * @p: Virtual address holder |
3140 | * |
3141 | * This function maps the DMAable buffer |
3142 | * |
3143 | * Return: 0 on success, non-zero on failure |
3144 | */ |
3145 | static int |
3146 | mpi3mr_map_smp_buffer(struct device *dev, struct bsg_buffer *buf, |
3147 | dma_addr_t *dma_addr, size_t *dma_len, void **p) |
3148 | { |
3149 | /* Check if the request is split across multiple segments */ |
3150 | if (buf->sg_cnt > 1) { |
3151 | *p = dma_alloc_coherent(dev, size: buf->payload_len, dma_handle: dma_addr, |
3152 | GFP_KERNEL); |
3153 | if (!*p) |
3154 | return -ENOMEM; |
3155 | *dma_len = buf->payload_len; |
3156 | } else { |
3157 | if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL)) |
3158 | return -ENOMEM; |
3159 | *dma_addr = sg_dma_address(buf->sg_list); |
3160 | *dma_len = sg_dma_len(buf->sg_list); |
3161 | *p = NULL; |
3162 | } |
3163 | |
3164 | return 0; |
3165 | } |
3166 | |
3167 | /** |
3168 | * mpi3mr_unmap_smp_buffer - unmap BSG dma buffer |
3169 | * @dev: Generic device reference |
3170 | * @buf: BSG buffer pointer |
3171 | * @dma_addr: Physical address to be unmapped |
3172 | * @p: Virtual address |
3173 | * |
3174 | * This function unmaps the DMAable buffer |
3175 | */ |
3176 | static void |
3177 | mpi3mr_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf, |
3178 | dma_addr_t dma_addr, void *p) |
3179 | { |
3180 | if (p) |
3181 | dma_free_coherent(dev, size: buf->payload_len, cpu_addr: p, dma_handle: dma_addr); |
3182 | else |
3183 | dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL); |
3184 | } |
3185 | |
3186 | /** |
3187 | * mpi3mr_transport_smp_handler - handler for smp passthru |
3188 | * @job: BSG job reference |
3189 | * @shost: SCSI host object reference |
3190 | * @rphy: SAS transport rphy object pointing the expander |
3191 | * |
3192 | * This is used primarily by smp utils for sending the SMP |
3193 | * commands to the expanders attached to the controller |
3194 | */ |
3195 | static void |
3196 | mpi3mr_transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost, |
3197 | struct sas_rphy *rphy) |
3198 | { |
3199 | struct mpi3mr_ioc *mrioc = shost_priv(shost); |
3200 | struct mpi3_smp_passthrough_request mpi_request; |
3201 | struct mpi3_smp_passthrough_reply mpi_reply; |
3202 | int rc; |
3203 | void *psge; |
3204 | dma_addr_t dma_addr_in; |
3205 | dma_addr_t dma_addr_out; |
3206 | void *addr_in = NULL; |
3207 | void *addr_out = NULL; |
3208 | size_t dma_len_in; |
3209 | size_t dma_len_out; |
3210 | unsigned int reslen = 0; |
3211 | u16 request_sz = sizeof(struct mpi3_smp_passthrough_request); |
3212 | u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply); |
3213 | u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST; |
3214 | u16 ioc_status; |
3215 | |
3216 | if (mrioc->reset_in_progress) { |
3217 | ioc_err(mrioc, "%s: host reset in progress!\n" , __func__); |
3218 | rc = -EFAULT; |
3219 | goto out; |
3220 | } |
3221 | |
3222 | rc = mpi3mr_map_smp_buffer(dev: &mrioc->pdev->dev, buf: &job->request_payload, |
3223 | dma_addr: &dma_addr_out, dma_len: &dma_len_out, p: &addr_out); |
3224 | if (rc) |
3225 | goto out; |
3226 | |
3227 | if (addr_out) |
3228 | sg_copy_to_buffer(sgl: job->request_payload.sg_list, |
3229 | nents: job->request_payload.sg_cnt, buf: addr_out, |
3230 | buflen: job->request_payload.payload_len); |
3231 | |
3232 | rc = mpi3mr_map_smp_buffer(dev: &mrioc->pdev->dev, buf: &job->reply_payload, |
3233 | dma_addr: &dma_addr_in, dma_len: &dma_len_in, p: &addr_in); |
3234 | if (rc) |
3235 | goto unmap_out; |
3236 | |
3237 | memset(&mpi_request, 0, request_sz); |
3238 | memset(&mpi_reply, 0, reply_sz); |
3239 | mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS); |
3240 | mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH; |
3241 | mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_rphy(mrioc, rphy); |
3242 | mpi_request.sas_address = ((rphy) ? |
3243 | cpu_to_le64(rphy->identify.sas_address) : |
3244 | cpu_to_le64(mrioc->sas_hba.sas_address)); |
3245 | psge = &mpi_request.request_sge; |
3246 | mpi3mr_add_sg_single(paddr: psge, flags: sgl_flags, length: dma_len_out - 4, dma_addr: dma_addr_out); |
3247 | |
3248 | psge = &mpi_request.response_sge; |
3249 | mpi3mr_add_sg_single(paddr: psge, flags: sgl_flags, length: dma_len_in - 4, dma_addr: dma_addr_in); |
3250 | |
3251 | dprint_transport_info(mrioc, "sending SMP request\n" ); |
3252 | |
3253 | rc = mpi3mr_post_transport_req(mrioc, request: &mpi_request, request_sz, |
3254 | reply: &mpi_reply, reply_sz, |
3255 | MPI3MR_INTADMCMD_TIMEOUT, ioc_status: &ioc_status); |
3256 | if (rc) |
3257 | goto unmap_in; |
3258 | |
3259 | dprint_transport_info(mrioc, |
3260 | "SMP request completed with ioc_status(0x%04x)\n" , ioc_status); |
3261 | |
3262 | dprint_transport_info(mrioc, |
3263 | "SMP request - reply data transfer size(%d)\n" , |
3264 | le16_to_cpu(mpi_reply.response_data_length)); |
3265 | |
3266 | memcpy(job->reply, &mpi_reply, reply_sz); |
3267 | job->reply_len = reply_sz; |
3268 | reslen = le16_to_cpu(mpi_reply.response_data_length); |
3269 | |
3270 | if (addr_in) |
3271 | sg_copy_from_buffer(sgl: job->reply_payload.sg_list, |
3272 | nents: job->reply_payload.sg_cnt, buf: addr_in, |
3273 | buflen: job->reply_payload.payload_len); |
3274 | |
3275 | rc = 0; |
3276 | unmap_in: |
3277 | mpi3mr_unmap_smp_buffer(dev: &mrioc->pdev->dev, buf: &job->reply_payload, |
3278 | dma_addr: dma_addr_in, p: addr_in); |
3279 | unmap_out: |
3280 | mpi3mr_unmap_smp_buffer(dev: &mrioc->pdev->dev, buf: &job->request_payload, |
3281 | dma_addr: dma_addr_out, p: addr_out); |
3282 | out: |
3283 | bsg_job_done(job, result: rc, reply_payload_rcv_len: reslen); |
3284 | } |
3285 | |
3286 | struct sas_function_template mpi3mr_transport_functions = { |
3287 | .get_linkerrors = mpi3mr_transport_get_linkerrors, |
3288 | .get_enclosure_identifier = mpi3mr_transport_get_enclosure_identifier, |
3289 | .get_bay_identifier = mpi3mr_transport_get_bay_identifier, |
3290 | .phy_reset = mpi3mr_transport_phy_reset, |
3291 | .phy_enable = mpi3mr_transport_phy_enable, |
3292 | .set_phy_speed = mpi3mr_transport_phy_speed, |
3293 | .smp_handler = mpi3mr_transport_smp_handler, |
3294 | }; |
3295 | |
3296 | struct scsi_transport_template *mpi3mr_transport_template; |
3297 | |