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Commit | Line | Data |
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e8899fad JG |
1 | /* |
2 | * Copyright (c) 2015 Linaro Ltd. | |
3 | * Copyright (c) 2015 Hisilicon Limited. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | */ | |
11 | ||
12 | #include "hisi_sas.h" | |
13 | #define DRV_NAME "hisi_sas" | |
14 | ||
42e7a693 JG |
15 | #define DEV_IS_GONE(dev) \ |
16 | ((!dev) || (dev->dev_type == SAS_PHY_UNUSED)) | |
17 | ||
cac9b2a2 JG |
18 | static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device, |
19 | u8 *lun, struct hisi_sas_tmf_task *tmf); | |
441c2740 JG |
20 | static int |
21 | hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, | |
22 | struct domain_device *device, | |
23 | int abort_flag, int tag); | |
7c594f04 | 24 | static int hisi_sas_softreset_ata_disk(struct domain_device *device); |
057c3d1f XT |
25 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
26 | void *funcdata); | |
d5a60dfd XC |
27 | static void hisi_sas_release_task(struct hisi_hba *hisi_hba, |
28 | struct domain_device *device); | |
29 | static void hisi_sas_dev_gone(struct domain_device *device); | |
cac9b2a2 | 30 | |
468f4b8d | 31 | u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction) |
6c7bb8a1 | 32 | { |
468f4b8d | 33 | switch (fis->command) { |
6c7bb8a1 XC |
34 | case ATA_CMD_FPDMA_WRITE: |
35 | case ATA_CMD_FPDMA_READ: | |
36 | case ATA_CMD_FPDMA_RECV: | |
37 | case ATA_CMD_FPDMA_SEND: | |
38 | case ATA_CMD_NCQ_NON_DATA: | |
edafeef4 | 39 | return HISI_SAS_SATA_PROTOCOL_FPDMA; |
6c7bb8a1 XC |
40 | |
41 | case ATA_CMD_DOWNLOAD_MICRO: | |
42 | case ATA_CMD_ID_ATA: | |
43 | case ATA_CMD_PMP_READ: | |
44 | case ATA_CMD_READ_LOG_EXT: | |
45 | case ATA_CMD_PIO_READ: | |
46 | case ATA_CMD_PIO_READ_EXT: | |
47 | case ATA_CMD_PMP_WRITE: | |
48 | case ATA_CMD_WRITE_LOG_EXT: | |
49 | case ATA_CMD_PIO_WRITE: | |
50 | case ATA_CMD_PIO_WRITE_EXT: | |
edafeef4 | 51 | return HISI_SAS_SATA_PROTOCOL_PIO; |
6c7bb8a1 XC |
52 | |
53 | case ATA_CMD_DSM: | |
54 | case ATA_CMD_DOWNLOAD_MICRO_DMA: | |
55 | case ATA_CMD_PMP_READ_DMA: | |
56 | case ATA_CMD_PMP_WRITE_DMA: | |
57 | case ATA_CMD_READ: | |
58 | case ATA_CMD_READ_EXT: | |
59 | case ATA_CMD_READ_LOG_DMA_EXT: | |
60 | case ATA_CMD_READ_STREAM_DMA_EXT: | |
61 | case ATA_CMD_TRUSTED_RCV_DMA: | |
62 | case ATA_CMD_TRUSTED_SND_DMA: | |
63 | case ATA_CMD_WRITE: | |
64 | case ATA_CMD_WRITE_EXT: | |
65 | case ATA_CMD_WRITE_FUA_EXT: | |
66 | case ATA_CMD_WRITE_QUEUED: | |
67 | case ATA_CMD_WRITE_LOG_DMA_EXT: | |
68 | case ATA_CMD_WRITE_STREAM_DMA_EXT: | |
c3fe8a2b | 69 | case ATA_CMD_ZAC_MGMT_IN: |
edafeef4 | 70 | return HISI_SAS_SATA_PROTOCOL_DMA; |
6c7bb8a1 XC |
71 | |
72 | case ATA_CMD_CHK_POWER: | |
73 | case ATA_CMD_DEV_RESET: | |
74 | case ATA_CMD_EDD: | |
75 | case ATA_CMD_FLUSH: | |
76 | case ATA_CMD_FLUSH_EXT: | |
77 | case ATA_CMD_VERIFY: | |
78 | case ATA_CMD_VERIFY_EXT: | |
79 | case ATA_CMD_SET_FEATURES: | |
80 | case ATA_CMD_STANDBY: | |
81 | case ATA_CMD_STANDBYNOW1: | |
c3fe8a2b | 82 | case ATA_CMD_ZAC_MGMT_OUT: |
edafeef4 | 83 | return HISI_SAS_SATA_PROTOCOL_NONDATA; |
468f4b8d | 84 | |
3ff0f0b6 XT |
85 | case ATA_CMD_SET_MAX: |
86 | switch (fis->features) { | |
87 | case ATA_SET_MAX_PASSWD: | |
88 | case ATA_SET_MAX_LOCK: | |
89 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
468f4b8d | 90 | |
3ff0f0b6 XT |
91 | case ATA_SET_MAX_PASSWD_DMA: |
92 | case ATA_SET_MAX_UNLOCK_DMA: | |
93 | return HISI_SAS_SATA_PROTOCOL_DMA; | |
94 | ||
95 | default: | |
96 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
468f4b8d | 97 | } |
3ff0f0b6 XT |
98 | |
99 | default: | |
100 | { | |
6c7bb8a1 XC |
101 | if (direction == DMA_NONE) |
102 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
103 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
104 | } | |
468f4b8d | 105 | } |
6c7bb8a1 XC |
106 | } |
107 | EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol); | |
108 | ||
75904077 XC |
109 | void hisi_sas_sata_done(struct sas_task *task, |
110 | struct hisi_sas_slot *slot) | |
111 | { | |
112 | struct task_status_struct *ts = &task->task_status; | |
113 | struct ata_task_resp *resp = (struct ata_task_resp *)ts->buf; | |
f557e32c XT |
114 | struct hisi_sas_status_buffer *status_buf = |
115 | hisi_sas_status_buf_addr_mem(slot); | |
116 | u8 *iu = &status_buf->iu[0]; | |
117 | struct dev_to_host_fis *d2h = (struct dev_to_host_fis *)iu; | |
75904077 XC |
118 | |
119 | resp->frame_len = sizeof(struct dev_to_host_fis); | |
120 | memcpy(&resp->ending_fis[0], d2h, sizeof(struct dev_to_host_fis)); | |
121 | ||
122 | ts->buf_valid_size = sizeof(*resp); | |
123 | } | |
124 | EXPORT_SYMBOL_GPL(hisi_sas_sata_done); | |
125 | ||
318913c6 XC |
126 | int hisi_sas_get_ncq_tag(struct sas_task *task, u32 *tag) |
127 | { | |
128 | struct ata_queued_cmd *qc = task->uldd_task; | |
129 | ||
130 | if (qc) { | |
131 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || | |
132 | qc->tf.command == ATA_CMD_FPDMA_READ) { | |
133 | *tag = qc->tag; | |
134 | return 1; | |
135 | } | |
136 | } | |
137 | return 0; | |
138 | } | |
139 | EXPORT_SYMBOL_GPL(hisi_sas_get_ncq_tag); | |
140 | ||
c2c1d9de XC |
141 | /* |
142 | * This function assumes linkrate mask fits in 8 bits, which it | |
143 | * does for all HW versions supported. | |
144 | */ | |
145 | u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max) | |
146 | { | |
4a8bec88 | 147 | u8 rate = 0; |
c2c1d9de XC |
148 | int i; |
149 | ||
150 | max -= SAS_LINK_RATE_1_5_GBPS; | |
151 | for (i = 0; i <= max; i++) | |
152 | rate |= 1 << (i * 2); | |
153 | return rate; | |
154 | } | |
155 | EXPORT_SYMBOL_GPL(hisi_sas_get_prog_phy_linkrate_mask); | |
156 | ||
42e7a693 JG |
157 | static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device) |
158 | { | |
159 | return device->port->ha->lldd_ha; | |
160 | } | |
161 | ||
2e244f0f JG |
162 | struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port) |
163 | { | |
164 | return container_of(sas_port, struct hisi_sas_port, sas_port); | |
165 | } | |
166 | EXPORT_SYMBOL_GPL(to_hisi_sas_port); | |
167 | ||
a25d0d3d XC |
168 | void hisi_sas_stop_phys(struct hisi_hba *hisi_hba) |
169 | { | |
170 | int phy_no; | |
171 | ||
172 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) | |
173 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
174 | } | |
175 | EXPORT_SYMBOL_GPL(hisi_sas_stop_phys); | |
176 | ||
257efd1f JG |
177 | static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) |
178 | { | |
179 | void *bitmap = hisi_hba->slot_index_tags; | |
180 | ||
181 | clear_bit(slot_idx, bitmap); | |
182 | } | |
183 | ||
42e7a693 JG |
184 | static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx) |
185 | { | |
784b46b7 XC |
186 | unsigned long flags; |
187 | ||
188 | if (hisi_hba->hw->slot_index_alloc || (slot_idx >= | |
189 | hisi_hba->hw->max_command_entries - HISI_SAS_RESERVED_IPTT_CNT)) { | |
190 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
191 | hisi_sas_slot_index_clear(hisi_hba, slot_idx); | |
192 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
193 | } | |
42e7a693 JG |
194 | } |
195 | ||
196 | static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx) | |
197 | { | |
198 | void *bitmap = hisi_hba->slot_index_tags; | |
199 | ||
200 | set_bit(slot_idx, bitmap); | |
201 | } | |
202 | ||
784b46b7 XC |
203 | static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, |
204 | struct scsi_cmnd *scsi_cmnd) | |
42e7a693 | 205 | { |
784b46b7 | 206 | int index; |
42e7a693 | 207 | void *bitmap = hisi_hba->slot_index_tags; |
784b46b7 | 208 | unsigned long flags; |
42e7a693 | 209 | |
784b46b7 XC |
210 | if (scsi_cmnd) |
211 | return scsi_cmnd->request->tag; | |
212 | ||
213 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
fa3be0f2 | 214 | index = find_next_zero_bit(bitmap, hisi_hba->slot_index_count, |
784b46b7 | 215 | hisi_hba->last_slot_index + 1); |
fa3be0f2 | 216 | if (index >= hisi_hba->slot_index_count) { |
784b46b7 XC |
217 | index = find_next_zero_bit(bitmap, |
218 | hisi_hba->slot_index_count, | |
219 | hisi_hba->hw->max_command_entries - | |
220 | HISI_SAS_RESERVED_IPTT_CNT); | |
221 | if (index >= hisi_hba->slot_index_count) { | |
222 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
fa3be0f2 | 223 | return -SAS_QUEUE_FULL; |
784b46b7 | 224 | } |
fa3be0f2 | 225 | } |
42e7a693 | 226 | hisi_sas_slot_index_set(hisi_hba, index); |
fa3be0f2 | 227 | hisi_hba->last_slot_index = index; |
784b46b7 | 228 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
fa3be0f2 | 229 | |
784b46b7 | 230 | return index; |
42e7a693 JG |
231 | } |
232 | ||
257efd1f JG |
233 | static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) |
234 | { | |
235 | int i; | |
236 | ||
237 | for (i = 0; i < hisi_hba->slot_index_count; ++i) | |
238 | hisi_sas_slot_index_clear(hisi_hba, i); | |
239 | } | |
27a3f229 JG |
240 | |
241 | void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, | |
242 | struct hisi_sas_slot *slot) | |
243 | { | |
e85d93b2 | 244 | unsigned long flags; |
4fefe5bb XC |
245 | int device_id = slot->device_id; |
246 | struct hisi_sas_device *sas_dev = &hisi_hba->devices[device_id]; | |
27a3f229 | 247 | |
d3c4dd4e | 248 | if (task) { |
11b75249 | 249 | struct device *dev = hisi_hba->dev; |
27a3f229 | 250 | |
6ba0fbc3 XT |
251 | if (!task->lldd_task) |
252 | return; | |
253 | ||
254 | task->lldd_task = NULL; | |
255 | ||
b3cce125 XC |
256 | if (!sas_protocol_ata(task->task_proto)) { |
257 | struct sas_ssp_task *ssp_task = &task->ssp_task; | |
258 | struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; | |
259 | ||
d3c4dd4e | 260 | if (slot->n_elem) |
dc1e4730 XC |
261 | dma_unmap_sg(dev, task->scatter, |
262 | task->num_scatter, | |
d3c4dd4e | 263 | task->data_dir); |
b3cce125 XC |
264 | if (slot->n_elem_dif) |
265 | dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd), | |
266 | scsi_prot_sg_count(scsi_cmnd), | |
267 | task->data_dir); | |
268 | } | |
d3c4dd4e | 269 | } |
27a3f229 | 270 | |
4fefe5bb | 271 | spin_lock_irqsave(&sas_dev->lock, flags); |
27a3f229 | 272 | list_del_init(&slot->entry); |
4fefe5bb | 273 | spin_unlock_irqrestore(&sas_dev->lock, flags); |
2ba5afb6 XC |
274 | |
275 | memset(slot, 0, offsetof(struct hisi_sas_slot, buf)); | |
276 | ||
27a3f229 | 277 | hisi_sas_slot_index_free(hisi_hba, slot->idx); |
27a3f229 JG |
278 | } |
279 | EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free); | |
280 | ||
a2b3820b | 281 | static void hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba, |
66ee999b JG |
282 | struct hisi_sas_slot *slot) |
283 | { | |
a2b3820b | 284 | hisi_hba->hw->prep_smp(hisi_hba, slot); |
66ee999b JG |
285 | } |
286 | ||
a2b3820b | 287 | static void hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba, |
78bd2b4f | 288 | struct hisi_sas_slot *slot) |
42e7a693 | 289 | { |
78bd2b4f | 290 | hisi_hba->hw->prep_ssp(hisi_hba, slot); |
42e7a693 JG |
291 | } |
292 | ||
a2b3820b | 293 | static void hisi_sas_task_prep_ata(struct hisi_hba *hisi_hba, |
6f2ff1a1 JG |
294 | struct hisi_sas_slot *slot) |
295 | { | |
a2b3820b | 296 | hisi_hba->hw->prep_stp(hisi_hba, slot); |
6f2ff1a1 JG |
297 | } |
298 | ||
a2b3820b | 299 | static void hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba, |
441c2740 JG |
300 | struct hisi_sas_slot *slot, |
301 | int device_id, int abort_flag, int tag_to_abort) | |
302 | { | |
a2b3820b | 303 | hisi_hba->hw->prep_abort(hisi_hba, slot, |
441c2740 JG |
304 | device_id, abort_flag, tag_to_abort); |
305 | } | |
306 | ||
6e1b731b XC |
307 | static void hisi_sas_dma_unmap(struct hisi_hba *hisi_hba, |
308 | struct sas_task *task, int n_elem, | |
309 | int n_elem_req, int n_elem_resp) | |
310 | { | |
311 | struct device *dev = hisi_hba->dev; | |
312 | ||
313 | if (!sas_protocol_ata(task->task_proto)) { | |
314 | if (task->num_scatter) { | |
315 | if (n_elem) | |
316 | dma_unmap_sg(dev, task->scatter, | |
317 | task->num_scatter, | |
318 | task->data_dir); | |
319 | } else if (task->task_proto & SAS_PROTOCOL_SMP) { | |
320 | if (n_elem_req) | |
321 | dma_unmap_sg(dev, &task->smp_task.smp_req, | |
322 | 1, DMA_TO_DEVICE); | |
323 | if (n_elem_resp) | |
324 | dma_unmap_sg(dev, &task->smp_task.smp_resp, | |
325 | 1, DMA_FROM_DEVICE); | |
326 | } | |
327 | } | |
328 | } | |
329 | ||
330 | static int hisi_sas_dma_map(struct hisi_hba *hisi_hba, | |
331 | struct sas_task *task, int *n_elem, | |
332 | int *n_elem_req, int *n_elem_resp) | |
333 | { | |
334 | struct device *dev = hisi_hba->dev; | |
335 | int rc; | |
336 | ||
337 | if (sas_protocol_ata(task->task_proto)) { | |
338 | *n_elem = task->num_scatter; | |
339 | } else { | |
340 | unsigned int req_len, resp_len; | |
341 | ||
342 | if (task->num_scatter) { | |
343 | *n_elem = dma_map_sg(dev, task->scatter, | |
344 | task->num_scatter, task->data_dir); | |
345 | if (!*n_elem) { | |
346 | rc = -ENOMEM; | |
347 | goto prep_out; | |
348 | } | |
349 | } else if (task->task_proto & SAS_PROTOCOL_SMP) { | |
350 | *n_elem_req = dma_map_sg(dev, &task->smp_task.smp_req, | |
351 | 1, DMA_TO_DEVICE); | |
352 | if (!*n_elem_req) { | |
353 | rc = -ENOMEM; | |
354 | goto prep_out; | |
355 | } | |
356 | req_len = sg_dma_len(&task->smp_task.smp_req); | |
357 | if (req_len & 0x3) { | |
358 | rc = -EINVAL; | |
359 | goto err_out_dma_unmap; | |
360 | } | |
361 | *n_elem_resp = dma_map_sg(dev, &task->smp_task.smp_resp, | |
362 | 1, DMA_FROM_DEVICE); | |
363 | if (!*n_elem_resp) { | |
364 | rc = -ENOMEM; | |
365 | goto err_out_dma_unmap; | |
366 | } | |
367 | resp_len = sg_dma_len(&task->smp_task.smp_resp); | |
368 | if (resp_len & 0x3) { | |
369 | rc = -EINVAL; | |
370 | goto err_out_dma_unmap; | |
371 | } | |
372 | } | |
373 | } | |
374 | ||
375 | if (*n_elem > HISI_SAS_SGE_PAGE_CNT) { | |
376 | dev_err(dev, "task prep: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT", | |
377 | *n_elem); | |
378 | rc = -EINVAL; | |
379 | goto err_out_dma_unmap; | |
380 | } | |
381 | return 0; | |
382 | ||
383 | err_out_dma_unmap: | |
384 | /* It would be better to call dma_unmap_sg() here, but it's messy */ | |
385 | hisi_sas_dma_unmap(hisi_hba, task, *n_elem, | |
386 | *n_elem_req, *n_elem_resp); | |
387 | prep_out: | |
388 | return rc; | |
389 | } | |
390 | ||
b3cce125 XC |
391 | static void hisi_sas_dif_dma_unmap(struct hisi_hba *hisi_hba, |
392 | struct sas_task *task, int n_elem_dif) | |
393 | { | |
394 | struct device *dev = hisi_hba->dev; | |
395 | ||
396 | if (n_elem_dif) { | |
397 | struct sas_ssp_task *ssp_task = &task->ssp_task; | |
398 | struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; | |
399 | ||
400 | dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd), | |
401 | scsi_prot_sg_count(scsi_cmnd), | |
402 | task->data_dir); | |
403 | } | |
404 | } | |
405 | ||
406 | static int hisi_sas_dif_dma_map(struct hisi_hba *hisi_hba, | |
407 | int *n_elem_dif, struct sas_task *task) | |
408 | { | |
409 | struct device *dev = hisi_hba->dev; | |
410 | struct sas_ssp_task *ssp_task; | |
411 | struct scsi_cmnd *scsi_cmnd; | |
412 | int rc; | |
413 | ||
414 | if (task->num_scatter) { | |
415 | ssp_task = &task->ssp_task; | |
416 | scsi_cmnd = ssp_task->cmd; | |
417 | ||
418 | if (scsi_prot_sg_count(scsi_cmnd)) { | |
419 | *n_elem_dif = dma_map_sg(dev, | |
420 | scsi_prot_sglist(scsi_cmnd), | |
421 | scsi_prot_sg_count(scsi_cmnd), | |
422 | task->data_dir); | |
423 | ||
424 | if (!*n_elem_dif) | |
425 | return -ENOMEM; | |
426 | ||
427 | if (*n_elem_dif > HISI_SAS_SGE_DIF_PAGE_CNT) { | |
428 | dev_err(dev, "task prep: n_elem_dif(%d) too large\n", | |
429 | *n_elem_dif); | |
430 | rc = -EINVAL; | |
431 | goto err_out_dif_dma_unmap; | |
432 | } | |
433 | } | |
434 | } | |
435 | ||
436 | return 0; | |
437 | ||
438 | err_out_dif_dma_unmap: | |
439 | dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd), | |
440 | scsi_prot_sg_count(scsi_cmnd), task->data_dir); | |
441 | return rc; | |
442 | } | |
443 | ||
2f6bca20 XT |
444 | static int hisi_sas_task_prep(struct sas_task *task, |
445 | struct hisi_sas_dq **dq_pointer, | |
78bd2b4f | 446 | bool is_tmf, struct hisi_sas_tmf_task *tmf, |
fa222db0 | 447 | int *pass) |
42e7a693 JG |
448 | { |
449 | struct domain_device *device = task->dev; | |
745b6847 | 450 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); |
42e7a693 JG |
451 | struct hisi_sas_device *sas_dev = device->lldd_dev; |
452 | struct hisi_sas_port *port; | |
453 | struct hisi_sas_slot *slot; | |
454 | struct hisi_sas_cmd_hdr *cmd_hdr_base; | |
2e244f0f | 455 | struct asd_sas_port *sas_port = device->port; |
745b6847 | 456 | struct device *dev = hisi_hba->dev; |
7eee4b92 | 457 | int dlvry_queue_slot, dlvry_queue, rc, slot_idx; |
b3cce125 | 458 | int n_elem = 0, n_elem_dif = 0, n_elem_req = 0, n_elem_resp = 0; |
2f6bca20 | 459 | struct hisi_sas_dq *dq; |
6cca51ee | 460 | unsigned long flags; |
fa222db0 | 461 | int wr_q_index; |
42e7a693 | 462 | |
42e7a693 JG |
463 | if (DEV_IS_GONE(sas_dev)) { |
464 | if (sas_dev) | |
ad604832 | 465 | dev_info(dev, "task prep: device %d not ready\n", |
42e7a693 JG |
466 | sas_dev->device_id); |
467 | else | |
468 | dev_info(dev, "task prep: device %016llx not ready\n", | |
469 | SAS_ADDR(device->sas_addr)); | |
470 | ||
6bf6db51 | 471 | return -ECOMM; |
42e7a693 | 472 | } |
2e244f0f | 473 | |
4fefe5bb XC |
474 | if (hisi_hba->reply_map) { |
475 | int cpu = raw_smp_processor_id(); | |
476 | unsigned int dq_index = hisi_hba->reply_map[cpu]; | |
477 | ||
478 | *dq_pointer = dq = &hisi_hba->dq[dq_index]; | |
479 | } else { | |
480 | *dq_pointer = dq = sas_dev->dq; | |
481 | } | |
2f6bca20 | 482 | |
2e244f0f | 483 | port = to_hisi_sas_port(sas_port); |
9859f24e | 484 | if (port && !port->port_attached) { |
09fe9ecb | 485 | dev_info(dev, "task prep: %s port%d not attach device\n", |
6073b771 | 486 | (dev_is_sata(device)) ? |
09fe9ecb JG |
487 | "SATA/STP" : "SAS", |
488 | device->port->id); | |
489 | ||
6bf6db51 | 490 | return -ECOMM; |
42e7a693 JG |
491 | } |
492 | ||
6e1b731b XC |
493 | rc = hisi_sas_dma_map(hisi_hba, task, &n_elem, |
494 | &n_elem_req, &n_elem_resp); | |
495 | if (rc < 0) | |
496 | goto prep_out; | |
a2b3820b | 497 | |
b3cce125 XC |
498 | if (!sas_protocol_ata(task->task_proto)) { |
499 | rc = hisi_sas_dif_dma_map(hisi_hba, &n_elem_dif, task); | |
500 | if (rc < 0) | |
501 | goto err_out_dma_unmap; | |
502 | } | |
503 | ||
685b6d6e | 504 | if (hisi_hba->hw->slot_index_alloc) |
784b46b7 XC |
505 | rc = hisi_hba->hw->slot_index_alloc(hisi_hba, device); |
506 | else { | |
507 | struct scsi_cmnd *scsi_cmnd = NULL; | |
508 | ||
509 | if (task->uldd_task) { | |
510 | struct ata_queued_cmd *qc; | |
511 | ||
512 | if (dev_is_sata(device)) { | |
513 | qc = task->uldd_task; | |
514 | scsi_cmnd = qc->scsicmd; | |
515 | } else { | |
516 | scsi_cmnd = task->uldd_task; | |
517 | } | |
518 | } | |
519 | rc = hisi_sas_slot_index_alloc(hisi_hba, scsi_cmnd); | |
520 | } | |
521 | if (rc < 0) | |
b3cce125 | 522 | goto err_out_dif_dma_unmap; |
b1a49412 | 523 | |
784b46b7 | 524 | slot_idx = rc; |
3de0026d | 525 | slot = &hisi_hba->slot_info[slot_idx]; |
3de0026d | 526 | |
6cca51ee | 527 | spin_lock_irqsave(&dq->lock, flags); |
fa222db0 XC |
528 | wr_q_index = hisi_hba->hw->get_free_slot(hisi_hba, dq); |
529 | if (wr_q_index < 0) { | |
6cca51ee | 530 | spin_unlock_irqrestore(&dq->lock, flags); |
d87e72fb | 531 | rc = -EAGAIN; |
2ba5afb6 | 532 | goto err_out_tag; |
fa222db0 XC |
533 | } |
534 | ||
535 | list_add_tail(&slot->delivery, &dq->list); | |
6cca51ee | 536 | spin_unlock_irqrestore(&dq->lock, flags); |
4fefe5bb XC |
537 | spin_lock_irqsave(&sas_dev->lock, flags); |
538 | list_add_tail(&slot->entry, &sas_dev->list); | |
539 | spin_unlock_irqrestore(&sas_dev->lock, flags); | |
42e7a693 | 540 | |
b1a49412 | 541 | dlvry_queue = dq->id; |
fa222db0 | 542 | dlvry_queue_slot = wr_q_index; |
42e7a693 | 543 | |
4fefe5bb | 544 | slot->device_id = sas_dev->device_id; |
42e7a693 | 545 | slot->n_elem = n_elem; |
b3cce125 | 546 | slot->n_elem_dif = n_elem_dif; |
42e7a693 JG |
547 | slot->dlvry_queue = dlvry_queue; |
548 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
549 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
550 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
551 | slot->task = task; | |
552 | slot->port = port; | |
78bd2b4f XT |
553 | slot->tmf = tmf; |
554 | slot->is_internal = is_tmf; | |
42e7a693 JG |
555 | task->lldd_task = slot; |
556 | ||
42e7a693 | 557 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
f557e32c XT |
558 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
559 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
42e7a693 JG |
560 | |
561 | switch (task->task_proto) { | |
66ee999b | 562 | case SAS_PROTOCOL_SMP: |
a2b3820b | 563 | hisi_sas_task_prep_smp(hisi_hba, slot); |
66ee999b | 564 | break; |
42e7a693 | 565 | case SAS_PROTOCOL_SSP: |
78bd2b4f | 566 | hisi_sas_task_prep_ssp(hisi_hba, slot); |
42e7a693 JG |
567 | break; |
568 | case SAS_PROTOCOL_SATA: | |
569 | case SAS_PROTOCOL_STP: | |
570 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
a2b3820b | 571 | hisi_sas_task_prep_ata(hisi_hba, slot); |
6f2ff1a1 | 572 | break; |
42e7a693 JG |
573 | default: |
574 | dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n", | |
575 | task->task_proto); | |
42e7a693 JG |
576 | break; |
577 | } | |
578 | ||
54c9dd2d | 579 | spin_lock_irqsave(&task->task_state_lock, flags); |
42e7a693 | 580 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 581 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
42e7a693 | 582 | |
42e7a693 | 583 | ++(*pass); |
1c09b663 | 584 | WRITE_ONCE(slot->ready, 1); |
42e7a693 | 585 | |
9c9d18e7 | 586 | return 0; |
42e7a693 | 587 | |
42e7a693 JG |
588 | err_out_tag: |
589 | hisi_sas_slot_index_free(hisi_hba, slot_idx); | |
b3cce125 XC |
590 | err_out_dif_dma_unmap: |
591 | if (!sas_protocol_ata(task->task_proto)) | |
592 | hisi_sas_dif_dma_unmap(hisi_hba, task, n_elem_dif); | |
7eee4b92 | 593 | err_out_dma_unmap: |
6e1b731b XC |
594 | hisi_sas_dma_unmap(hisi_hba, task, n_elem, |
595 | n_elem_req, n_elem_resp); | |
42e7a693 | 596 | prep_out: |
7eee4b92 | 597 | dev_err(dev, "task prep: failed[%d]!\n", rc); |
42e7a693 JG |
598 | return rc; |
599 | } | |
600 | ||
601 | static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, | |
78bd2b4f | 602 | bool is_tmf, struct hisi_sas_tmf_task *tmf) |
42e7a693 JG |
603 | { |
604 | u32 rc; | |
605 | u32 pass = 0; | |
606 | unsigned long flags; | |
745b6847 XC |
607 | struct hisi_hba *hisi_hba; |
608 | struct device *dev; | |
609 | struct domain_device *device = task->dev; | |
610 | struct asd_sas_port *sas_port = device->port; | |
2f6bca20 | 611 | struct hisi_sas_dq *dq = NULL; |
42e7a693 | 612 | |
745b6847 XC |
613 | if (!sas_port) { |
614 | struct task_status_struct *ts = &task->task_status; | |
615 | ||
616 | ts->resp = SAS_TASK_UNDELIVERED; | |
617 | ts->stat = SAS_PHY_DOWN; | |
618 | /* | |
619 | * libsas will use dev->port, should | |
620 | * not call task_done for sata | |
621 | */ | |
622 | if (device->dev_type != SAS_SATA_DEV) | |
623 | task->task_done(task); | |
624 | return -ECOMM; | |
625 | } | |
626 | ||
627 | hisi_hba = dev_to_hisi_hba(device); | |
628 | dev = hisi_hba->dev; | |
629 | ||
214e702d XT |
630 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) { |
631 | if (in_softirq()) | |
632 | return -EINVAL; | |
633 | ||
634 | down(&hisi_hba->sem); | |
635 | up(&hisi_hba->sem); | |
636 | } | |
06ec0fb9 | 637 | |
42e7a693 | 638 | /* protect task_prep and start_delivery sequence */ |
2f6bca20 | 639 | rc = hisi_sas_task_prep(task, &dq, is_tmf, tmf, &pass); |
42e7a693 JG |
640 | if (rc) |
641 | dev_err(dev, "task exec: failed[%d]!\n", rc); | |
642 | ||
2f6bca20 XT |
643 | if (likely(pass)) { |
644 | spin_lock_irqsave(&dq->lock, flags); | |
b1a49412 | 645 | hisi_hba->hw->start_delivery(dq); |
2f6bca20 XT |
646 | spin_unlock_irqrestore(&dq->lock, flags); |
647 | } | |
42e7a693 JG |
648 | |
649 | return rc; | |
650 | } | |
257efd1f | 651 | |
66139921 JG |
652 | static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no) |
653 | { | |
654 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
655 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
656 | struct sas_ha_struct *sas_ha; | |
657 | ||
658 | if (!phy->phy_attached) | |
659 | return; | |
660 | ||
661 | sas_ha = &hisi_hba->sha; | |
662 | sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); | |
663 | ||
664 | if (sas_phy->phy) { | |
665 | struct sas_phy *sphy = sas_phy->phy; | |
666 | ||
667 | sphy->negotiated_linkrate = sas_phy->linkrate; | |
66139921 | 668 | sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; |
2ae75787 XC |
669 | sphy->maximum_linkrate_hw = |
670 | hisi_hba->hw->phy_get_max_linkrate(); | |
671 | if (sphy->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
672 | sphy->minimum_linkrate = phy->minimum_linkrate; | |
673 | ||
674 | if (sphy->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
675 | sphy->maximum_linkrate = phy->maximum_linkrate; | |
66139921 JG |
676 | } |
677 | ||
678 | if (phy->phy_type & PORT_TYPE_SAS) { | |
679 | struct sas_identify_frame *id; | |
680 | ||
681 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
682 | id->dev_type = phy->identify.device_type; | |
683 | id->initiator_bits = SAS_PROTOCOL_ALL; | |
684 | id->target_bits = phy->identify.target_port_protocols; | |
685 | } else if (phy->phy_type & PORT_TYPE_SATA) { | |
686 | /*Nothing*/ | |
687 | } | |
688 | ||
689 | sas_phy->frame_rcvd_size = phy->frame_rcvd_size; | |
690 | sas_ha->notify_port_event(sas_phy, PORTE_BYTES_DMAED); | |
691 | } | |
692 | ||
abda97c2 JG |
693 | static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) |
694 | { | |
695 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
696 | struct hisi_sas_device *sas_dev = NULL; | |
302e0901 | 697 | unsigned long flags; |
1b865185 XC |
698 | int last = hisi_hba->last_dev_id; |
699 | int first = (hisi_hba->last_dev_id + 1) % HISI_SAS_MAX_DEVICES; | |
abda97c2 JG |
700 | int i; |
701 | ||
302e0901 | 702 | spin_lock_irqsave(&hisi_hba->lock, flags); |
1b865185 | 703 | for (i = first; i != last; i %= HISI_SAS_MAX_DEVICES) { |
abda97c2 | 704 | if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) { |
b1a49412 XC |
705 | int queue = i % hisi_hba->queue_count; |
706 | struct hisi_sas_dq *dq = &hisi_hba->dq[queue]; | |
707 | ||
abda97c2 JG |
708 | hisi_hba->devices[i].device_id = i; |
709 | sas_dev = &hisi_hba->devices[i]; | |
abda97c2 JG |
710 | sas_dev->dev_type = device->dev_type; |
711 | sas_dev->hisi_hba = hisi_hba; | |
712 | sas_dev->sas_device = device; | |
b1a49412 | 713 | sas_dev->dq = dq; |
4fefe5bb | 714 | spin_lock_init(&sas_dev->lock); |
405314df | 715 | INIT_LIST_HEAD(&hisi_hba->devices[i].list); |
abda97c2 JG |
716 | break; |
717 | } | |
1b865185 | 718 | i++; |
abda97c2 | 719 | } |
1b865185 | 720 | hisi_hba->last_dev_id = i; |
302e0901 | 721 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
abda97c2 JG |
722 | |
723 | return sas_dev; | |
724 | } | |
725 | ||
d5a60dfd XC |
726 | #define HISI_SAS_SRST_ATA_DISK_CNT 3 |
727 | static int hisi_sas_init_device(struct domain_device *device) | |
728 | { | |
729 | int rc = TMF_RESP_FUNC_COMPLETE; | |
730 | struct scsi_lun lun; | |
731 | struct hisi_sas_tmf_task tmf_task; | |
732 | int retry = HISI_SAS_SRST_ATA_DISK_CNT; | |
733 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
734 | ||
735 | switch (device->dev_type) { | |
736 | case SAS_END_DEVICE: | |
737 | int_to_scsilun(0, &lun); | |
738 | ||
739 | tmf_task.tmf = TMF_CLEAR_TASK_SET; | |
740 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun.scsi_lun, | |
741 | &tmf_task); | |
742 | if (rc == TMF_RESP_FUNC_COMPLETE) | |
743 | hisi_sas_release_task(hisi_hba, device); | |
744 | break; | |
745 | case SAS_SATA_DEV: | |
746 | case SAS_SATA_PM: | |
747 | case SAS_SATA_PM_PORT: | |
748 | case SAS_SATA_PENDING: | |
749 | while (retry-- > 0) { | |
750 | rc = hisi_sas_softreset_ata_disk(device); | |
751 | if (!rc) | |
752 | break; | |
753 | } | |
754 | break; | |
755 | default: | |
756 | break; | |
757 | } | |
758 | ||
759 | return rc; | |
760 | } | |
761 | ||
abda97c2 JG |
762 | static int hisi_sas_dev_found(struct domain_device *device) |
763 | { | |
764 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
765 | struct domain_device *parent_dev = device->parent; | |
766 | struct hisi_sas_device *sas_dev; | |
11b75249 | 767 | struct device *dev = hisi_hba->dev; |
d5a60dfd | 768 | int rc; |
abda97c2 | 769 | |
685b6d6e JG |
770 | if (hisi_hba->hw->alloc_dev) |
771 | sas_dev = hisi_hba->hw->alloc_dev(device); | |
772 | else | |
773 | sas_dev = hisi_sas_alloc_dev(device); | |
abda97c2 JG |
774 | if (!sas_dev) { |
775 | dev_err(dev, "fail alloc dev: max support %d devices\n", | |
776 | HISI_SAS_MAX_DEVICES); | |
777 | return -EINVAL; | |
778 | } | |
779 | ||
780 | device->lldd_dev = sas_dev; | |
781 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); | |
782 | ||
783 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { | |
784 | int phy_no; | |
785 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
786 | struct ex_phy *phy; | |
787 | ||
788 | for (phy_no = 0; phy_no < phy_num; phy_no++) { | |
789 | phy = &parent_dev->ex_dev.ex_phy[phy_no]; | |
790 | if (SAS_ADDR(phy->attached_sas_addr) == | |
c90a0bea | 791 | SAS_ADDR(device->sas_addr)) |
abda97c2 | 792 | break; |
abda97c2 JG |
793 | } |
794 | ||
795 | if (phy_no == phy_num) { | |
796 | dev_info(dev, "dev found: no attached " | |
797 | "dev:%016llx at ex:%016llx\n", | |
798 | SAS_ADDR(device->sas_addr), | |
799 | SAS_ADDR(parent_dev->sas_addr)); | |
d5a60dfd XC |
800 | rc = -EINVAL; |
801 | goto err_out; | |
abda97c2 JG |
802 | } |
803 | } | |
804 | ||
f1c88211 XC |
805 | dev_info(dev, "dev[%d:%x] found\n", |
806 | sas_dev->device_id, sas_dev->dev_type); | |
807 | ||
d5a60dfd XC |
808 | rc = hisi_sas_init_device(device); |
809 | if (rc) | |
810 | goto err_out; | |
abda97c2 | 811 | return 0; |
d5a60dfd XC |
812 | |
813 | err_out: | |
814 | hisi_sas_dev_gone(device); | |
815 | return rc; | |
abda97c2 JG |
816 | } |
817 | ||
235bfc7f | 818 | int hisi_sas_slave_configure(struct scsi_device *sdev) |
31eec8a6 JG |
819 | { |
820 | struct domain_device *dev = sdev_to_domain_dev(sdev); | |
821 | int ret = sas_slave_configure(sdev); | |
822 | ||
823 | if (ret) | |
824 | return ret; | |
825 | if (!dev_is_sata(dev)) | |
826 | sas_change_queue_depth(sdev, 64); | |
827 | ||
828 | return 0; | |
829 | } | |
235bfc7f | 830 | EXPORT_SYMBOL_GPL(hisi_sas_slave_configure); |
31eec8a6 | 831 | |
235bfc7f | 832 | void hisi_sas_scan_start(struct Scsi_Host *shost) |
701f75ec JG |
833 | { |
834 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
701f75ec | 835 | |
396b8044 | 836 | hisi_hba->hw->phys_init(hisi_hba); |
701f75ec | 837 | } |
235bfc7f | 838 | EXPORT_SYMBOL_GPL(hisi_sas_scan_start); |
701f75ec | 839 | |
235bfc7f | 840 | int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time) |
701f75ec JG |
841 | { |
842 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
843 | struct sas_ha_struct *sha = &hisi_hba->sha; | |
844 | ||
396b8044 JG |
845 | /* Wait for PHY up interrupt to occur */ |
846 | if (time < HZ) | |
701f75ec JG |
847 | return 0; |
848 | ||
849 | sas_drain_work(sha); | |
850 | return 1; | |
851 | } | |
235bfc7f | 852 | EXPORT_SYMBOL_GPL(hisi_sas_scan_finished); |
701f75ec | 853 | |
66139921 JG |
854 | static void hisi_sas_phyup_work(struct work_struct *work) |
855 | { | |
856 | struct hisi_sas_phy *phy = | |
e537b62b | 857 | container_of(work, typeof(*phy), works[HISI_PHYE_PHY_UP]); |
66139921 JG |
858 | struct hisi_hba *hisi_hba = phy->hisi_hba; |
859 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
860 | int phy_no = sas_phy->id; | |
861 | ||
569eddcf XC |
862 | if (phy->identify.target_port_protocols == SAS_PROTOCOL_SSP) |
863 | hisi_hba->hw->sl_notify_ssp(hisi_hba, phy_no); | |
66139921 JG |
864 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); |
865 | } | |
976867e6 | 866 | |
057c3d1f XT |
867 | static void hisi_sas_linkreset_work(struct work_struct *work) |
868 | { | |
869 | struct hisi_sas_phy *phy = | |
870 | container_of(work, typeof(*phy), works[HISI_PHYE_LINK_RESET]); | |
871 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
872 | ||
873 | hisi_sas_control_phy(sas_phy, PHY_FUNC_LINK_RESET, NULL); | |
874 | } | |
875 | ||
e537b62b XT |
876 | static const work_func_t hisi_sas_phye_fns[HISI_PHYES_NUM] = { |
877 | [HISI_PHYE_PHY_UP] = hisi_sas_phyup_work, | |
057c3d1f | 878 | [HISI_PHYE_LINK_RESET] = hisi_sas_linkreset_work, |
e537b62b XT |
879 | }; |
880 | ||
881 | bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy, | |
882 | enum hisi_sas_phy_event event) | |
883 | { | |
884 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
885 | ||
886 | if (WARN_ON(event >= HISI_PHYES_NUM)) | |
887 | return false; | |
888 | ||
889 | return queue_work(hisi_hba->wq, &phy->works[event]); | |
890 | } | |
891 | EXPORT_SYMBOL_GPL(hisi_sas_notify_phy_event); | |
892 | ||
b6c9b15e XT |
893 | static void hisi_sas_wait_phyup_timedout(struct timer_list *t) |
894 | { | |
895 | struct hisi_sas_phy *phy = from_timer(phy, t, timer); | |
896 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
897 | struct device *dev = hisi_hba->dev; | |
898 | int phy_no = phy->sas_phy.id; | |
899 | ||
900 | dev_warn(dev, "phy%d wait phyup timeout, issuing link reset\n", phy_no); | |
901 | hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET); | |
902 | } | |
903 | ||
904 | void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no) | |
905 | { | |
906 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
907 | struct device *dev = hisi_hba->dev; | |
908 | ||
909 | if (!timer_pending(&phy->timer)) { | |
910 | dev_dbg(dev, "phy%d OOB ready\n", phy_no); | |
911 | phy->timer.expires = jiffies + HISI_SAS_WAIT_PHYUP_TIMEOUT * HZ; | |
912 | add_timer(&phy->timer); | |
913 | } | |
914 | } | |
915 | EXPORT_SYMBOL_GPL(hisi_sas_phy_oob_ready); | |
916 | ||
976867e6 JG |
917 | static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no) |
918 | { | |
919 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
920 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
e537b62b | 921 | int i; |
976867e6 JG |
922 | |
923 | phy->hisi_hba = hisi_hba; | |
924 | phy->port = NULL; | |
eba8c20c XT |
925 | phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; |
926 | phy->maximum_linkrate = hisi_hba->hw->phy_get_max_linkrate(); | |
976867e6 JG |
927 | sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0; |
928 | sas_phy->class = SAS; | |
929 | sas_phy->iproto = SAS_PROTOCOL_ALL; | |
930 | sas_phy->tproto = 0; | |
931 | sas_phy->type = PHY_TYPE_PHYSICAL; | |
932 | sas_phy->role = PHY_ROLE_INITIATOR; | |
933 | sas_phy->oob_mode = OOB_NOT_CONNECTED; | |
934 | sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; | |
935 | sas_phy->id = phy_no; | |
936 | sas_phy->sas_addr = &hisi_hba->sas_addr[0]; | |
937 | sas_phy->frame_rcvd = &phy->frame_rcvd[0]; | |
938 | sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata; | |
939 | sas_phy->lldd_phy = phy; | |
66139921 | 940 | |
e537b62b XT |
941 | for (i = 0; i < HISI_PHYES_NUM; i++) |
942 | INIT_WORK(&phy->works[i], hisi_sas_phye_fns[i]); | |
ce70c2e6 JG |
943 | |
944 | spin_lock_init(&phy->lock); | |
b6c9b15e XT |
945 | |
946 | timer_setup(&phy->timer, hisi_sas_wait_phyup_timedout, 0); | |
976867e6 JG |
947 | } |
948 | ||
184a4635 JG |
949 | static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy) |
950 | { | |
951 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
952 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
953 | struct hisi_sas_phy *phy = sas_phy->lldd_phy; | |
954 | struct asd_sas_port *sas_port = sas_phy->port; | |
2e244f0f | 955 | struct hisi_sas_port *port = to_hisi_sas_port(sas_port); |
184a4635 JG |
956 | unsigned long flags; |
957 | ||
958 | if (!sas_port) | |
959 | return; | |
960 | ||
961 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
962 | port->port_attached = 1; | |
963 | port->id = phy->port_id; | |
964 | phy->port = port; | |
965 | sas_port->lldd_port = port; | |
966 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
967 | } | |
968 | ||
d3c4dd4e | 969 | static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, struct sas_task *task, |
405314df | 970 | struct hisi_sas_slot *slot) |
184a4635 | 971 | { |
d3c4dd4e JG |
972 | if (task) { |
973 | unsigned long flags; | |
974 | struct task_status_struct *ts; | |
184a4635 | 975 | |
d3c4dd4e | 976 | ts = &task->task_status; |
184a4635 | 977 | |
d3c4dd4e JG |
978 | ts->resp = SAS_TASK_COMPLETE; |
979 | ts->stat = SAS_ABORTED_TASK; | |
980 | spin_lock_irqsave(&task->task_state_lock, flags); | |
981 | task->task_state_flags &= | |
982 | ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); | |
983 | task->task_state_flags |= SAS_TASK_STATE_DONE; | |
984 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
985 | } | |
184a4635 | 986 | |
405314df | 987 | hisi_sas_slot_task_free(hisi_hba, task, slot); |
184a4635 JG |
988 | } |
989 | ||
990 | static void hisi_sas_release_task(struct hisi_hba *hisi_hba, | |
991 | struct domain_device *device) | |
992 | { | |
405314df JG |
993 | struct hisi_sas_slot *slot, *slot2; |
994 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
184a4635 | 995 | |
405314df JG |
996 | list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) |
997 | hisi_sas_do_release_task(hisi_hba, slot->task, slot); | |
184a4635 JG |
998 | } |
999 | ||
4d0951ee | 1000 | void hisi_sas_release_tasks(struct hisi_hba *hisi_hba) |
06ec0fb9 | 1001 | { |
405314df JG |
1002 | struct hisi_sas_device *sas_dev; |
1003 | struct domain_device *device; | |
06ec0fb9 XC |
1004 | int i; |
1005 | ||
405314df JG |
1006 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
1007 | sas_dev = &hisi_hba->devices[i]; | |
1008 | device = sas_dev->sas_device; | |
06ec0fb9 | 1009 | |
405314df JG |
1010 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || |
1011 | !device) | |
06ec0fb9 | 1012 | continue; |
405314df JG |
1013 | |
1014 | hisi_sas_release_task(hisi_hba, device); | |
06ec0fb9 XC |
1015 | } |
1016 | } | |
4d0951ee | 1017 | EXPORT_SYMBOL_GPL(hisi_sas_release_tasks); |
06ec0fb9 | 1018 | |
d30ff263 XC |
1019 | static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba, |
1020 | struct domain_device *device) | |
1021 | { | |
1022 | if (hisi_hba->hw->dereg_device) | |
1023 | hisi_hba->hw->dereg_device(hisi_hba, device); | |
1024 | } | |
1025 | ||
abda97c2 JG |
1026 | static void hisi_sas_dev_gone(struct domain_device *device) |
1027 | { | |
1028 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1029 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1030 | struct device *dev = hisi_hba->dev; |
abda97c2 | 1031 | |
f1c88211 | 1032 | dev_info(dev, "dev[%d:%x] is gone\n", |
abda97c2 JG |
1033 | sas_dev->device_id, sas_dev->dev_type); |
1034 | ||
f8e45ec2 XC |
1035 | if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) { |
1036 | hisi_sas_internal_task_abort(hisi_hba, device, | |
795f25a3 | 1037 | HISI_SAS_INT_ABT_DEV, 0); |
40f2702b | 1038 | |
f8e45ec2 XC |
1039 | hisi_sas_dereg_device(hisi_hba, device); |
1040 | ||
d2fc401e | 1041 | down(&hisi_hba->sem); |
f8e45ec2 | 1042 | hisi_hba->hw->clear_itct(hisi_hba, sas_dev); |
d2fc401e | 1043 | up(&hisi_hba->sem); |
f8e45ec2 | 1044 | device->lldd_dev = NULL; |
f8e45ec2 | 1045 | } |
d30ff263 | 1046 | |
0258141a XT |
1047 | if (hisi_hba->hw->free_device) |
1048 | hisi_hba->hw->free_device(sas_dev); | |
abda97c2 | 1049 | sas_dev->dev_type = SAS_PHY_UNUSED; |
abda97c2 | 1050 | } |
42e7a693 JG |
1051 | |
1052 | static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) | |
1053 | { | |
1054 | return hisi_sas_task_exec(task, gfp_flags, 0, NULL); | |
1055 | } | |
1056 | ||
eb44e4d7 | 1057 | static int hisi_sas_phy_set_linkrate(struct hisi_hba *hisi_hba, int phy_no, |
757db2da JG |
1058 | struct sas_phy_linkrates *r) |
1059 | { | |
1060 | struct sas_phy_linkrates _r; | |
1061 | ||
1062 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1063 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1064 | enum sas_linkrate min, max; | |
1065 | ||
eb44e4d7 LJ |
1066 | if (r->minimum_linkrate > SAS_LINK_RATE_1_5_GBPS) |
1067 | return -EINVAL; | |
1068 | ||
757db2da JG |
1069 | if (r->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) { |
1070 | max = sas_phy->phy->maximum_linkrate; | |
1071 | min = r->minimum_linkrate; | |
1072 | } else if (r->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) { | |
1073 | max = r->maximum_linkrate; | |
1074 | min = sas_phy->phy->minimum_linkrate; | |
1075 | } else | |
eb44e4d7 | 1076 | return -EINVAL; |
757db2da JG |
1077 | |
1078 | _r.maximum_linkrate = max; | |
1079 | _r.minimum_linkrate = min; | |
1080 | ||
5a54691f LJ |
1081 | sas_phy->phy->maximum_linkrate = max; |
1082 | sas_phy->phy->minimum_linkrate = min; | |
1083 | ||
757db2da JG |
1084 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); |
1085 | msleep(100); | |
1086 | hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, &_r); | |
1087 | hisi_hba->hw->phy_start(hisi_hba, phy_no); | |
eb44e4d7 LJ |
1088 | |
1089 | return 0; | |
757db2da JG |
1090 | } |
1091 | ||
e4189d53 JG |
1092 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
1093 | void *funcdata) | |
1094 | { | |
1095 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
1096 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
1097 | int phy_no = sas_phy->id; | |
1098 | ||
1099 | switch (func) { | |
1100 | case PHY_FUNC_HARD_RESET: | |
1101 | hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no); | |
1102 | break; | |
1103 | ||
1104 | case PHY_FUNC_LINK_RESET: | |
b4c67a6c JG |
1105 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); |
1106 | msleep(100); | |
1eb8eeac | 1107 | hisi_hba->hw->phy_start(hisi_hba, phy_no); |
e4189d53 JG |
1108 | break; |
1109 | ||
1110 | case PHY_FUNC_DISABLE: | |
1111 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
1112 | break; | |
1113 | ||
1114 | case PHY_FUNC_SET_LINK_RATE: | |
eb44e4d7 | 1115 | return hisi_sas_phy_set_linkrate(hisi_hba, phy_no, funcdata); |
c52108c6 XT |
1116 | case PHY_FUNC_GET_EVENTS: |
1117 | if (hisi_hba->hw->get_events) { | |
1118 | hisi_hba->hw->get_events(hisi_hba, phy_no); | |
1119 | break; | |
1120 | } | |
1121 | /* fallthru */ | |
e4189d53 JG |
1122 | case PHY_FUNC_RELEASE_SPINUP_HOLD: |
1123 | default: | |
1124 | return -EOPNOTSUPP; | |
1125 | } | |
1126 | return 0; | |
1127 | } | |
184a4635 | 1128 | |
0efff300 JG |
1129 | static void hisi_sas_task_done(struct sas_task *task) |
1130 | { | |
584f53fe | 1131 | del_timer(&task->slow_task->timer); |
0efff300 JG |
1132 | complete(&task->slow_task->completion); |
1133 | } | |
1134 | ||
77570eed | 1135 | static void hisi_sas_tmf_timedout(struct timer_list *t) |
0efff300 | 1136 | { |
77570eed KC |
1137 | struct sas_task_slow *slow = from_timer(slow, t, timer); |
1138 | struct sas_task *task = slow->task; | |
f64a6988 | 1139 | unsigned long flags; |
584f53fe | 1140 | bool is_completed = true; |
f64a6988 XC |
1141 | |
1142 | spin_lock_irqsave(&task->task_state_lock, flags); | |
584f53fe | 1143 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { |
f64a6988 | 1144 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
584f53fe XC |
1145 | is_completed = false; |
1146 | } | |
f64a6988 | 1147 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
0efff300 | 1148 | |
584f53fe XC |
1149 | if (!is_completed) |
1150 | complete(&task->slow_task->completion); | |
0efff300 JG |
1151 | } |
1152 | ||
1153 | #define TASK_TIMEOUT 20 | |
1154 | #define TASK_RETRY 3 | |
bb9abc4a | 1155 | #define INTERNAL_ABORT_TIMEOUT 6 |
0efff300 JG |
1156 | static int hisi_sas_exec_internal_tmf_task(struct domain_device *device, |
1157 | void *parameter, u32 para_len, | |
1158 | struct hisi_sas_tmf_task *tmf) | |
1159 | { | |
1160 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1161 | struct hisi_hba *hisi_hba = sas_dev->hisi_hba; | |
11b75249 | 1162 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1163 | struct sas_task *task; |
1164 | int res, retry; | |
1165 | ||
1166 | for (retry = 0; retry < TASK_RETRY; retry++) { | |
1167 | task = sas_alloc_slow_task(GFP_KERNEL); | |
1168 | if (!task) | |
1169 | return -ENOMEM; | |
1170 | ||
1171 | task->dev = device; | |
1172 | task->task_proto = device->tproto; | |
1173 | ||
7c594f04 XC |
1174 | if (dev_is_sata(device)) { |
1175 | task->ata_task.device_control_reg_update = 1; | |
1176 | memcpy(&task->ata_task.fis, parameter, para_len); | |
1177 | } else { | |
1178 | memcpy(&task->ssp_task, parameter, para_len); | |
1179 | } | |
0efff300 JG |
1180 | task->task_done = hisi_sas_task_done; |
1181 | ||
841b86f3 | 1182 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
4a8bec88 | 1183 | task->slow_task->timer.expires = jiffies + TASK_TIMEOUT * HZ; |
0efff300 JG |
1184 | add_timer(&task->slow_task->timer); |
1185 | ||
1186 | res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf); | |
1187 | ||
1188 | if (res) { | |
1189 | del_timer(&task->slow_task->timer); | |
1190 | dev_err(dev, "abort tmf: executing internal task failed: %d\n", | |
1191 | res); | |
1192 | goto ex_err; | |
1193 | } | |
1194 | ||
1195 | wait_for_completion(&task->slow_task->completion); | |
1196 | res = TMF_RESP_FUNC_FAILED; | |
1197 | /* Even TMF timed out, return direct. */ | |
1198 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
1199 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
d3c4dd4e JG |
1200 | struct hisi_sas_slot *slot = task->lldd_task; |
1201 | ||
f1c88211 | 1202 | dev_err(dev, "abort tmf: TMF task timeout and not done\n"); |
584f53fe | 1203 | if (slot) { |
f4445bb9 GS |
1204 | struct hisi_sas_cq *cq = |
1205 | &hisi_hba->cq[slot->dlvry_queue]; | |
584f53fe XC |
1206 | /* |
1207 | * flush tasklet to avoid free'ing task | |
1208 | * before using task in IO completion | |
1209 | */ | |
1210 | tasklet_kill(&cq->tasklet); | |
d3c4dd4e | 1211 | slot->task = NULL; |
584f53fe | 1212 | } |
d3c4dd4e | 1213 | |
0efff300 | 1214 | goto ex_err; |
f1c88211 XC |
1215 | } else |
1216 | dev_err(dev, "abort tmf: TMF task timeout\n"); | |
0efff300 JG |
1217 | } |
1218 | ||
1219 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
1af1b808 | 1220 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { |
0efff300 JG |
1221 | res = TMF_RESP_FUNC_COMPLETE; |
1222 | break; | |
1223 | } | |
1224 | ||
4ffde482 JG |
1225 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1226 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
1227 | res = TMF_RESP_FUNC_SUCC; | |
1228 | break; | |
1229 | } | |
1230 | ||
0efff300 JG |
1231 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1232 | task->task_status.stat == SAS_DATA_UNDERRUN) { | |
1233 | /* no error, but return the number of bytes of | |
1234 | * underrun | |
1235 | */ | |
1236 | dev_warn(dev, "abort tmf: task to dev %016llx " | |
1237 | "resp: 0x%x sts 0x%x underrun\n", | |
1238 | SAS_ADDR(device->sas_addr), | |
1239 | task->task_status.resp, | |
1240 | task->task_status.stat); | |
1241 | res = task->task_status.residual; | |
1242 | break; | |
1243 | } | |
1244 | ||
1245 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
1246 | task->task_status.stat == SAS_DATA_OVERRUN) { | |
1247 | dev_warn(dev, "abort tmf: blocked task error\n"); | |
1248 | res = -EMSGSIZE; | |
1249 | break; | |
1250 | } | |
1251 | ||
1252 | dev_warn(dev, "abort tmf: task to dev " | |
1253 | "%016llx resp: 0x%x status 0x%x\n", | |
1254 | SAS_ADDR(device->sas_addr), task->task_status.resp, | |
1255 | task->task_status.stat); | |
1256 | sas_free_task(task); | |
1257 | task = NULL; | |
1258 | } | |
1259 | ex_err: | |
d2d7e7a0 XC |
1260 | if (retry == TASK_RETRY) |
1261 | dev_warn(dev, "abort tmf: executing internal task failed!\n"); | |
0efff300 JG |
1262 | sas_free_task(task); |
1263 | return res; | |
1264 | } | |
1265 | ||
7c594f04 XC |
1266 | static void hisi_sas_fill_ata_reset_cmd(struct ata_device *dev, |
1267 | bool reset, int pmp, u8 *fis) | |
1268 | { | |
1269 | struct ata_taskfile tf; | |
1270 | ||
1271 | ata_tf_init(dev, &tf); | |
1272 | if (reset) | |
1273 | tf.ctl |= ATA_SRST; | |
1274 | else | |
1275 | tf.ctl &= ~ATA_SRST; | |
1276 | tf.command = ATA_CMD_DEV_RESET; | |
1277 | ata_tf_to_fis(&tf, pmp, 0, fis); | |
1278 | } | |
1279 | ||
1280 | static int hisi_sas_softreset_ata_disk(struct domain_device *device) | |
1281 | { | |
1282 | u8 fis[20] = {0}; | |
1283 | struct ata_port *ap = device->sata_dev.ap; | |
1284 | struct ata_link *link; | |
1285 | int rc = TMF_RESP_FUNC_FAILED; | |
1286 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1287 | struct device *dev = hisi_hba->dev; |
7c594f04 | 1288 | int s = sizeof(struct host_to_dev_fis); |
7c594f04 XC |
1289 | |
1290 | ata_for_each_link(link, ap, EDGE) { | |
1291 | int pmp = sata_srst_pmp(link); | |
1292 | ||
1293 | hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis); | |
1294 | rc = hisi_sas_exec_internal_tmf_task(device, fis, s, NULL); | |
1295 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1296 | break; | |
1297 | } | |
1298 | ||
1299 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1300 | ata_for_each_link(link, ap, EDGE) { | |
1301 | int pmp = sata_srst_pmp(link); | |
1302 | ||
1303 | hisi_sas_fill_ata_reset_cmd(link->device, 0, pmp, fis); | |
1304 | rc = hisi_sas_exec_internal_tmf_task(device, fis, | |
1305 | s, NULL); | |
1306 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1307 | dev_err(dev, "ata disk de-reset failed\n"); | |
1308 | } | |
1309 | } else { | |
1310 | dev_err(dev, "ata disk reset failed\n"); | |
1311 | } | |
1312 | ||
e85d93b2 | 1313 | if (rc == TMF_RESP_FUNC_COMPLETE) |
7c594f04 | 1314 | hisi_sas_release_task(hisi_hba, device); |
7c594f04 XC |
1315 | |
1316 | return rc; | |
1317 | } | |
1318 | ||
0efff300 JG |
1319 | static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device, |
1320 | u8 *lun, struct hisi_sas_tmf_task *tmf) | |
1321 | { | |
1322 | struct sas_ssp_task ssp_task; | |
1323 | ||
1324 | if (!(device->tproto & SAS_PROTOCOL_SSP)) | |
1325 | return TMF_RESP_FUNC_ESUPP; | |
1326 | ||
1327 | memcpy(ssp_task.LUN, lun, 8); | |
1328 | ||
1329 | return hisi_sas_exec_internal_tmf_task(device, &ssp_task, | |
1330 | sizeof(ssp_task), tmf); | |
1331 | } | |
1332 | ||
a669bdbf | 1333 | static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba) |
917d3bda | 1334 | { |
a669bdbf | 1335 | u32 state = hisi_hba->hw->get_phys_state(hisi_hba); |
917d3bda XT |
1336 | int i; |
1337 | ||
1338 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
a669bdbf XT |
1339 | struct hisi_sas_device *sas_dev = &hisi_hba->devices[i]; |
1340 | struct domain_device *device = sas_dev->sas_device; | |
1341 | struct asd_sas_port *sas_port; | |
1342 | struct hisi_sas_port *port; | |
1343 | struct hisi_sas_phy *phy = NULL; | |
1344 | struct asd_sas_phy *sas_phy; | |
1345 | ||
917d3bda | 1346 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) |
a669bdbf | 1347 | || !device || !device->port) |
917d3bda XT |
1348 | continue; |
1349 | ||
a669bdbf XT |
1350 | sas_port = device->port; |
1351 | port = to_hisi_sas_port(sas_port); | |
1352 | ||
1353 | list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el) | |
1354 | if (state & BIT(sas_phy->id)) { | |
1355 | phy = sas_phy->lldd_phy; | |
1356 | break; | |
1357 | } | |
1358 | ||
1359 | if (phy) { | |
1360 | port->id = phy->port_id; | |
917d3bda | 1361 | |
a669bdbf XT |
1362 | /* Update linkrate of directly attached device. */ |
1363 | if (!device->parent) | |
1364 | device->linkrate = phy->sas_phy.linkrate; | |
917d3bda | 1365 | |
a669bdbf XT |
1366 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); |
1367 | } else | |
1368 | port->id = 0xff; | |
917d3bda XT |
1369 | } |
1370 | } | |
1371 | ||
1372 | static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 old_state, | |
1373 | u32 state) | |
1374 | { | |
1375 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1376 | struct asd_sas_port *_sas_port = NULL; | |
1377 | int phy_no; | |
1378 | ||
1379 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { | |
1380 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1381 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1382 | struct asd_sas_port *sas_port = sas_phy->port; | |
917d3bda XT |
1383 | bool do_port_check = !!(_sas_port != sas_port); |
1384 | ||
1385 | if (!sas_phy->phy->enabled) | |
1386 | continue; | |
1387 | ||
1388 | /* Report PHY state change to libsas */ | |
a669bdbf XT |
1389 | if (state & BIT(phy_no)) { |
1390 | if (do_port_check && sas_port && sas_port->port_dev) { | |
917d3bda XT |
1391 | struct domain_device *dev = sas_port->port_dev; |
1392 | ||
1393 | _sas_port = sas_port; | |
917d3bda XT |
1394 | |
1395 | if (DEV_IS_EXPANDER(dev->dev_type)) | |
1396 | sas_ha->notify_port_event(sas_phy, | |
1397 | PORTE_BROADCAST_RCVD); | |
1398 | } | |
1399 | } else if (old_state & (1 << phy_no)) | |
1400 | /* PHY down but was up before */ | |
1401 | hisi_sas_phy_down(hisi_hba, phy_no, 0); | |
1402 | ||
1403 | } | |
917d3bda XT |
1404 | } |
1405 | ||
6175abde XT |
1406 | static void hisi_sas_reset_init_all_devices(struct hisi_hba *hisi_hba) |
1407 | { | |
1408 | struct hisi_sas_device *sas_dev; | |
1409 | struct domain_device *device; | |
1410 | int i; | |
1411 | ||
1412 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
1413 | sas_dev = &hisi_hba->devices[i]; | |
1414 | device = sas_dev->sas_device; | |
1415 | ||
1416 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || !device) | |
1417 | continue; | |
1418 | ||
1419 | hisi_sas_init_device(device); | |
1420 | } | |
1421 | } | |
1422 | ||
31709548 XT |
1423 | static void hisi_sas_send_ata_reset_each_phy(struct hisi_hba *hisi_hba, |
1424 | struct asd_sas_port *sas_port, | |
1425 | struct domain_device *device) | |
1426 | { | |
1427 | struct hisi_sas_tmf_task tmf_task = { .force_phy = 1 }; | |
1428 | struct ata_port *ap = device->sata_dev.ap; | |
1429 | struct device *dev = hisi_hba->dev; | |
1430 | int s = sizeof(struct host_to_dev_fis); | |
1431 | int rc = TMF_RESP_FUNC_FAILED; | |
1432 | struct asd_sas_phy *sas_phy; | |
1433 | struct ata_link *link; | |
1434 | u8 fis[20] = {0}; | |
1435 | u32 state; | |
1436 | ||
1437 | state = hisi_hba->hw->get_phys_state(hisi_hba); | |
1438 | list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el) { | |
1439 | if (!(state & BIT(sas_phy->id))) | |
1440 | continue; | |
1441 | ||
1442 | ata_for_each_link(link, ap, EDGE) { | |
1443 | int pmp = sata_srst_pmp(link); | |
1444 | ||
1445 | tmf_task.phy_id = sas_phy->id; | |
1446 | hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis); | |
1447 | rc = hisi_sas_exec_internal_tmf_task(device, fis, s, | |
1448 | &tmf_task); | |
1449 | if (rc != TMF_RESP_FUNC_COMPLETE) { | |
1450 | dev_err(dev, "phy%d ata reset failed rc=%d\n", | |
1451 | sas_phy->id, rc); | |
1452 | break; | |
1453 | } | |
1454 | } | |
1455 | } | |
1456 | } | |
1457 | ||
1458 | static void hisi_sas_terminate_stp_reject(struct hisi_hba *hisi_hba) | |
1459 | { | |
1460 | struct device *dev = hisi_hba->dev; | |
1461 | int port_no, rc, i; | |
1462 | ||
1463 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
1464 | struct hisi_sas_device *sas_dev = &hisi_hba->devices[i]; | |
1465 | struct domain_device *device = sas_dev->sas_device; | |
1466 | ||
1467 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || !device) | |
1468 | continue; | |
1469 | ||
1470 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1471 | HISI_SAS_INT_ABT_DEV, 0); | |
1472 | if (rc < 0) | |
1473 | dev_err(dev, "STP reject: abort dev failed %d\n", rc); | |
1474 | } | |
1475 | ||
1476 | for (port_no = 0; port_no < hisi_hba->n_phy; port_no++) { | |
1477 | struct hisi_sas_port *port = &hisi_hba->port[port_no]; | |
1478 | struct asd_sas_port *sas_port = &port->sas_port; | |
1479 | struct domain_device *port_dev = sas_port->port_dev; | |
1480 | struct domain_device *device; | |
1481 | ||
1482 | if (!port_dev || !DEV_IS_EXPANDER(port_dev->dev_type)) | |
1483 | continue; | |
1484 | ||
1485 | /* Try to find a SATA device */ | |
1486 | list_for_each_entry(device, &sas_port->dev_list, | |
1487 | dev_list_node) { | |
1488 | if (dev_is_sata(device)) { | |
1489 | hisi_sas_send_ata_reset_each_phy(hisi_hba, | |
1490 | sas_port, | |
1491 | device); | |
1492 | break; | |
1493 | } | |
1494 | } | |
1495 | } | |
1496 | } | |
1497 | ||
4522204a | 1498 | void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba) |
06ec0fb9 | 1499 | { |
917d3bda | 1500 | struct Scsi_Host *shost = hisi_hba->shost; |
06ec0fb9 | 1501 | |
d2fc401e | 1502 | down(&hisi_hba->sem); |
4522204a | 1503 | hisi_hba->phy_state = hisi_hba->hw->get_phys_state(hisi_hba); |
06ec0fb9 | 1504 | |
917d3bda | 1505 | scsi_block_requests(shost); |
a865ae14 XT |
1506 | hisi_hba->hw->wait_cmds_complete_timeout(hisi_hba, 100, 5000); |
1507 | ||
6f7c32d6 JG |
1508 | if (timer_pending(&hisi_hba->timer)) |
1509 | del_timer_sync(&hisi_hba->timer); | |
1510 | ||
917d3bda | 1511 | set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); |
4522204a XT |
1512 | } |
1513 | EXPORT_SYMBOL_GPL(hisi_sas_controller_reset_prepare); | |
1514 | ||
1515 | void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba) | |
1516 | { | |
1517 | struct Scsi_Host *shost = hisi_hba->shost; | |
1518 | u32 state; | |
917d3bda | 1519 | |
917d3bda XT |
1520 | /* Init and wait for PHYs to come up and all libsas event finished. */ |
1521 | hisi_hba->hw->phys_init(hisi_hba); | |
1522 | msleep(1000); | |
a669bdbf | 1523 | hisi_sas_refresh_port_id(hisi_hba); |
214e702d | 1524 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); |
d2fc401e | 1525 | up(&hisi_hba->sem); |
31709548 XT |
1526 | |
1527 | if (hisi_hba->reject_stp_links_msk) | |
1528 | hisi_sas_terminate_stp_reject(hisi_hba); | |
6175abde | 1529 | hisi_sas_reset_init_all_devices(hisi_hba); |
fb51e7a8 | 1530 | scsi_unblock_requests(shost); |
214e702d | 1531 | clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); |
917d3bda XT |
1532 | |
1533 | state = hisi_hba->hw->get_phys_state(hisi_hba); | |
4522204a XT |
1534 | hisi_sas_rescan_topology(hisi_hba, hisi_hba->phy_state, state); |
1535 | } | |
1536 | EXPORT_SYMBOL_GPL(hisi_sas_controller_reset_done); | |
1537 | ||
1538 | static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba) | |
1539 | { | |
1540 | struct device *dev = hisi_hba->dev; | |
1541 | struct Scsi_Host *shost = hisi_hba->shost; | |
1542 | int rc; | |
1543 | ||
c2c7e740 | 1544 | if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct) |
49159a5e LJ |
1545 | queue_work(hisi_hba->wq, &hisi_hba->debugfs_work); |
1546 | ||
4522204a XT |
1547 | if (!hisi_hba->hw->soft_reset) |
1548 | return -1; | |
1549 | ||
1550 | if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) | |
1551 | return -1; | |
1552 | ||
1553 | dev_info(dev, "controller resetting...\n"); | |
1554 | hisi_sas_controller_reset_prepare(hisi_hba); | |
1555 | ||
1556 | rc = hisi_hba->hw->soft_reset(hisi_hba); | |
1557 | if (rc) { | |
1558 | dev_warn(dev, "controller reset failed (%d)\n", rc); | |
1559 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
1560 | up(&hisi_hba->sem); | |
1561 | scsi_unblock_requests(shost); | |
1562 | clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); | |
1563 | return rc; | |
1564 | } | |
1565 | ||
1566 | hisi_sas_controller_reset_done(hisi_hba); | |
fb51e7a8 | 1567 | dev_info(dev, "controller reset complete\n"); |
06ec0fb9 | 1568 | |
214e702d | 1569 | return 0; |
06ec0fb9 XC |
1570 | } |
1571 | ||
0efff300 JG |
1572 | static int hisi_sas_abort_task(struct sas_task *task) |
1573 | { | |
1574 | struct scsi_lun lun; | |
1575 | struct hisi_sas_tmf_task tmf_task; | |
1576 | struct domain_device *device = task->dev; | |
1577 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
c6ef8954 XC |
1578 | struct hisi_hba *hisi_hba; |
1579 | struct device *dev; | |
0efff300 JG |
1580 | int rc = TMF_RESP_FUNC_FAILED; |
1581 | unsigned long flags; | |
1582 | ||
c6ef8954 | 1583 | if (!sas_dev) |
0efff300 | 1584 | return TMF_RESP_FUNC_FAILED; |
c6ef8954 XC |
1585 | |
1586 | hisi_hba = dev_to_hisi_hba(task->dev); | |
1587 | dev = hisi_hba->dev; | |
0efff300 | 1588 | |
b81b6cce | 1589 | spin_lock_irqsave(&task->task_state_lock, flags); |
0efff300 | 1590 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { |
584f53fe XC |
1591 | struct hisi_sas_slot *slot = task->lldd_task; |
1592 | struct hisi_sas_cq *cq; | |
1593 | ||
1594 | if (slot) { | |
1595 | /* | |
1596 | * flush tasklet to avoid free'ing task | |
1597 | * before using task in IO completion | |
1598 | */ | |
1599 | cq = &hisi_hba->cq[slot->dlvry_queue]; | |
1600 | tasklet_kill(&cq->tasklet); | |
1601 | } | |
b81b6cce | 1602 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
0efff300 JG |
1603 | rc = TMF_RESP_FUNC_COMPLETE; |
1604 | goto out; | |
1605 | } | |
b81b6cce XC |
1606 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
1607 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
0efff300 | 1608 | |
0efff300 JG |
1609 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { |
1610 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1611 | struct hisi_sas_slot *slot = task->lldd_task; | |
735bcc77 | 1612 | u16 tag = slot->idx; |
c35279f2 | 1613 | int rc2; |
0efff300 JG |
1614 | |
1615 | int_to_scsilun(cmnd->device->lun, &lun); | |
1616 | tmf_task.tmf = TMF_ABORT_TASK; | |
735bcc77 | 1617 | tmf_task.tag_of_task_to_be_managed = tag; |
0efff300 JG |
1618 | |
1619 | rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, | |
1620 | &tmf_task); | |
1621 | ||
c35279f2 JG |
1622 | rc2 = hisi_sas_internal_task_abort(hisi_hba, device, |
1623 | HISI_SAS_INT_ABT_CMD, tag); | |
813709f2 XT |
1624 | if (rc2 < 0) { |
1625 | dev_err(dev, "abort task: internal abort (%d)\n", rc2); | |
1626 | return TMF_RESP_FUNC_FAILED; | |
1627 | } | |
1628 | ||
c35279f2 JG |
1629 | /* |
1630 | * If the TMF finds that the IO is not in the device and also | |
1631 | * the internal abort does not succeed, then it is safe to | |
1632 | * free the slot. | |
1633 | * Note: if the internal abort succeeds then the slot | |
1634 | * will have already been completed | |
1635 | */ | |
1636 | if (rc == TMF_RESP_FUNC_COMPLETE && rc2 != TMF_RESP_FUNC_SUCC) { | |
e85d93b2 | 1637 | if (task->lldd_task) |
c35279f2 | 1638 | hisi_sas_do_release_task(hisi_hba, task, slot); |
0efff300 | 1639 | } |
0efff300 JG |
1640 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1641 | task->task_proto & SAS_PROTOCOL_STP) { | |
1642 | if (task->dev->dev_type == SAS_SATA_DEV) { | |
813709f2 | 1643 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
795f25a3 JG |
1644 | HISI_SAS_INT_ABT_DEV, |
1645 | 0); | |
813709f2 XT |
1646 | if (rc < 0) { |
1647 | dev_err(dev, "abort task: internal abort failed\n"); | |
1648 | goto out; | |
1649 | } | |
d30ff263 | 1650 | hisi_sas_dereg_device(hisi_hba, device); |
7c594f04 | 1651 | rc = hisi_sas_softreset_ata_disk(device); |
0efff300 | 1652 | } |
eb045e04 | 1653 | } else if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SMP) { |
dc8a49ca JG |
1654 | /* SMP */ |
1655 | struct hisi_sas_slot *slot = task->lldd_task; | |
1656 | u32 tag = slot->idx; | |
584f53fe | 1657 | struct hisi_sas_cq *cq = &hisi_hba->cq[slot->dlvry_queue]; |
0efff300 | 1658 | |
ccbfe5a0 | 1659 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
795f25a3 | 1660 | HISI_SAS_INT_ABT_CMD, tag); |
813709f2 | 1661 | if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) && |
584f53fe XC |
1662 | task->lldd_task) { |
1663 | /* | |
1664 | * flush tasklet to avoid free'ing task | |
1665 | * before using task in IO completion | |
1666 | */ | |
1667 | tasklet_kill(&cq->tasklet); | |
1668 | slot->task = NULL; | |
1669 | } | |
0efff300 JG |
1670 | } |
1671 | ||
1672 | out: | |
1673 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1674 | dev_notice(dev, "abort task: rc=%d\n", rc); | |
1675 | return rc; | |
1676 | } | |
1677 | ||
1678 | static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun) | |
1679 | { | |
2a038131 XT |
1680 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); |
1681 | struct device *dev = hisi_hba->dev; | |
0efff300 JG |
1682 | struct hisi_sas_tmf_task tmf_task; |
1683 | int rc = TMF_RESP_FUNC_FAILED; | |
2a038131 XT |
1684 | |
1685 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
795f25a3 | 1686 | HISI_SAS_INT_ABT_DEV, 0); |
2a038131 XT |
1687 | if (rc < 0) { |
1688 | dev_err(dev, "abort task set: internal abort rc=%d\n", rc); | |
1689 | return TMF_RESP_FUNC_FAILED; | |
1690 | } | |
1691 | hisi_sas_dereg_device(hisi_hba, device); | |
0efff300 JG |
1692 | |
1693 | tmf_task.tmf = TMF_ABORT_TASK_SET; | |
1694 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1695 | ||
e85d93b2 | 1696 | if (rc == TMF_RESP_FUNC_COMPLETE) |
2a038131 | 1697 | hisi_sas_release_task(hisi_hba, device); |
2a038131 | 1698 | |
0efff300 JG |
1699 | return rc; |
1700 | } | |
1701 | ||
1702 | static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun) | |
1703 | { | |
0efff300 | 1704 | struct hisi_sas_tmf_task tmf_task; |
4a8bec88 | 1705 | int rc; |
0efff300 JG |
1706 | |
1707 | tmf_task.tmf = TMF_CLEAR_ACA; | |
1708 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1709 | ||
1710 | return rc; | |
1711 | } | |
1712 | ||
1713 | static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device) | |
1714 | { | |
3e1fb1b8 | 1715 | struct sas_phy *local_phy = sas_get_local_phy(device); |
0efff300 JG |
1716 | int rc, reset_type = (device->dev_type == SAS_SATA_DEV || |
1717 | (device->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; | |
3e1fb1b8 XC |
1718 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); |
1719 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1720 | struct asd_sas_phy *sas_phy = sas_ha->sas_phy[local_phy->number]; | |
1721 | struct hisi_sas_phy *phy = container_of(sas_phy, | |
1722 | struct hisi_sas_phy, sas_phy); | |
1723 | DECLARE_COMPLETION_ONSTACK(phyreset); | |
1724 | ||
1725 | if (scsi_is_sas_phy_local(local_phy)) { | |
1726 | phy->in_reset = 1; | |
1727 | phy->reset_completion = &phyreset; | |
1728 | } | |
1729 | ||
1730 | rc = sas_phy_reset(local_phy, reset_type); | |
1731 | sas_put_local_phy(local_phy); | |
1732 | ||
1733 | if (scsi_is_sas_phy_local(local_phy)) { | |
1734 | int ret = wait_for_completion_timeout(&phyreset, 2 * HZ); | |
1735 | unsigned long flags; | |
1736 | ||
1737 | spin_lock_irqsave(&phy->lock, flags); | |
1738 | phy->reset_completion = NULL; | |
1739 | phy->in_reset = 0; | |
1740 | spin_unlock_irqrestore(&phy->lock, flags); | |
1741 | ||
1742 | /* report PHY down if timed out */ | |
1743 | if (!ret) | |
1744 | hisi_sas_phy_down(hisi_hba, sas_phy->id, 0); | |
1745 | } else | |
1746 | msleep(2000); | |
1747 | ||
0efff300 JG |
1748 | return rc; |
1749 | } | |
1750 | ||
1751 | static int hisi_sas_I_T_nexus_reset(struct domain_device *device) | |
1752 | { | |
0efff300 | 1753 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); |
813709f2 | 1754 | struct device *dev = hisi_hba->dev; |
4a8bec88 | 1755 | int rc; |
0efff300 | 1756 | |
813709f2 | 1757 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
795f25a3 | 1758 | HISI_SAS_INT_ABT_DEV, 0); |
813709f2 XT |
1759 | if (rc < 0) { |
1760 | dev_err(dev, "I_T nexus reset: internal abort (%d)\n", rc); | |
1761 | return TMF_RESP_FUNC_FAILED; | |
1762 | } | |
d30ff263 XC |
1763 | hisi_sas_dereg_device(hisi_hba, device); |
1764 | ||
0efff300 JG |
1765 | rc = hisi_sas_debug_I_T_nexus_reset(device); |
1766 | ||
e85d93b2 | 1767 | if ((rc == TMF_RESP_FUNC_COMPLETE) || (rc == -ENODEV)) |
6131243a | 1768 | hisi_sas_release_task(hisi_hba, device); |
e85d93b2 | 1769 | |
6131243a | 1770 | return rc; |
0efff300 JG |
1771 | } |
1772 | ||
1773 | static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun) | |
1774 | { | |
0efff300 JG |
1775 | struct hisi_sas_device *sas_dev = device->lldd_dev; |
1776 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1777 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1778 | int rc = TMF_RESP_FUNC_FAILED; |
1779 | ||
055945df JG |
1780 | if (dev_is_sata(device)) { |
1781 | struct sas_phy *phy; | |
1782 | ||
1783 | /* Clear internal IO and then hardreset */ | |
1784 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1785 | HISI_SAS_INT_ABT_DEV, 0); | |
813709f2 XT |
1786 | if (rc < 0) { |
1787 | dev_err(dev, "lu_reset: internal abort failed\n"); | |
055945df | 1788 | goto out; |
813709f2 | 1789 | } |
d30ff263 | 1790 | hisi_sas_dereg_device(hisi_hba, device); |
0efff300 | 1791 | |
055945df JG |
1792 | phy = sas_get_local_phy(device); |
1793 | ||
1794 | rc = sas_phy_reset(phy, 1); | |
1795 | ||
e85d93b2 | 1796 | if (rc == 0) |
055945df | 1797 | hisi_sas_release_task(hisi_hba, device); |
055945df JG |
1798 | sas_put_local_phy(phy); |
1799 | } else { | |
1800 | struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET }; | |
1801 | ||
2a038131 | 1802 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
795f25a3 | 1803 | HISI_SAS_INT_ABT_DEV, 0); |
2a038131 XT |
1804 | if (rc < 0) { |
1805 | dev_err(dev, "lu_reset: internal abort failed\n"); | |
1806 | goto out; | |
1807 | } | |
1808 | hisi_sas_dereg_device(hisi_hba, device); | |
1809 | ||
055945df | 1810 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); |
e85d93b2 | 1811 | if (rc == TMF_RESP_FUNC_COMPLETE) |
055945df | 1812 | hisi_sas_release_task(hisi_hba, device); |
055945df JG |
1813 | } |
1814 | out: | |
14d3f397 | 1815 | if (rc != TMF_RESP_FUNC_COMPLETE) |
ad604832 | 1816 | dev_err(dev, "lu_reset: for device[%d]:rc= %d\n", |
14d3f397 | 1817 | sas_dev->device_id, rc); |
0efff300 JG |
1818 | return rc; |
1819 | } | |
1820 | ||
8b05ad6a JG |
1821 | static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha) |
1822 | { | |
1823 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
f2ae8d04 | 1824 | struct device *dev = hisi_hba->dev; |
e402acdb | 1825 | HISI_SAS_DECLARE_RST_WORK_ON_STACK(r); |
f2ae8d04 | 1826 | int rc, i; |
8b05ad6a | 1827 | |
e402acdb XT |
1828 | queue_work(hisi_hba->wq, &r.work); |
1829 | wait_for_completion(r.completion); | |
f2ae8d04 XT |
1830 | if (!r.done) |
1831 | return TMF_RESP_FUNC_FAILED; | |
1832 | ||
1833 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
1834 | struct hisi_sas_device *sas_dev = &hisi_hba->devices[i]; | |
1835 | struct domain_device *device = sas_dev->sas_device; | |
1836 | ||
1837 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || !device || | |
1838 | DEV_IS_EXPANDER(device->dev_type)) | |
1839 | continue; | |
1840 | ||
1841 | rc = hisi_sas_debug_I_T_nexus_reset(device); | |
1842 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1843 | dev_info(dev, "clear nexus ha: for device[%d] rc=%d\n", | |
1844 | sas_dev->device_id, rc); | |
1845 | } | |
1846 | ||
1847 | hisi_sas_release_tasks(hisi_hba); | |
e402acdb | 1848 | |
f2ae8d04 | 1849 | return TMF_RESP_FUNC_COMPLETE; |
8b05ad6a JG |
1850 | } |
1851 | ||
0efff300 JG |
1852 | static int hisi_sas_query_task(struct sas_task *task) |
1853 | { | |
1854 | struct scsi_lun lun; | |
1855 | struct hisi_sas_tmf_task tmf_task; | |
1856 | int rc = TMF_RESP_FUNC_FAILED; | |
1857 | ||
1858 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1859 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1860 | struct domain_device *device = task->dev; | |
1861 | struct hisi_sas_slot *slot = task->lldd_task; | |
1862 | u32 tag = slot->idx; | |
1863 | ||
1864 | int_to_scsilun(cmnd->device->lun, &lun); | |
1865 | tmf_task.tmf = TMF_QUERY_TASK; | |
735bcc77 | 1866 | tmf_task.tag_of_task_to_be_managed = tag; |
0efff300 JG |
1867 | |
1868 | rc = hisi_sas_debug_issue_ssp_tmf(device, | |
1869 | lun.scsi_lun, | |
1870 | &tmf_task); | |
1871 | switch (rc) { | |
1872 | /* The task is still in Lun, release it then */ | |
1873 | case TMF_RESP_FUNC_SUCC: | |
1874 | /* The task is not in Lun or failed, reset the phy */ | |
1875 | case TMF_RESP_FUNC_FAILED: | |
1876 | case TMF_RESP_FUNC_COMPLETE: | |
1877 | break; | |
997ee43c XC |
1878 | default: |
1879 | rc = TMF_RESP_FUNC_FAILED; | |
1880 | break; | |
0efff300 JG |
1881 | } |
1882 | } | |
1883 | return rc; | |
1884 | } | |
1885 | ||
441c2740 | 1886 | static int |
ad604832 | 1887 | hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id, |
441c2740 | 1888 | struct sas_task *task, int abort_flag, |
795f25a3 | 1889 | int task_tag, struct hisi_sas_dq *dq) |
441c2740 JG |
1890 | { |
1891 | struct domain_device *device = task->dev; | |
1892 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1893 | struct device *dev = hisi_hba->dev; |
441c2740 JG |
1894 | struct hisi_sas_port *port; |
1895 | struct hisi_sas_slot *slot; | |
2e244f0f | 1896 | struct asd_sas_port *sas_port = device->port; |
441c2740 JG |
1897 | struct hisi_sas_cmd_hdr *cmd_hdr_base; |
1898 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; | |
fa222db0 XC |
1899 | unsigned long flags, flags_dq = 0; |
1900 | int wr_q_index; | |
441c2740 | 1901 | |
917d3bda | 1902 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
1903 | return -EINVAL; |
1904 | ||
441c2740 JG |
1905 | if (!device->port) |
1906 | return -1; | |
1907 | ||
2e244f0f | 1908 | port = to_hisi_sas_port(sas_port); |
441c2740 JG |
1909 | |
1910 | /* simply get a slot and send abort command */ | |
784b46b7 XC |
1911 | rc = hisi_sas_slot_index_alloc(hisi_hba, NULL); |
1912 | if (rc < 0) | |
441c2740 | 1913 | goto err_out; |
b1a49412 | 1914 | |
784b46b7 | 1915 | slot_idx = rc; |
3de0026d | 1916 | slot = &hisi_hba->slot_info[slot_idx]; |
fa222db0 | 1917 | |
b1a49412 | 1918 | spin_lock_irqsave(&dq->lock, flags_dq); |
fa222db0 XC |
1919 | wr_q_index = hisi_hba->hw->get_free_slot(hisi_hba, dq); |
1920 | if (wr_q_index < 0) { | |
3de0026d | 1921 | spin_unlock_irqrestore(&dq->lock, flags_dq); |
d87e72fb | 1922 | rc = -EAGAIN; |
2ba5afb6 | 1923 | goto err_out_tag; |
3de0026d | 1924 | } |
fa222db0 XC |
1925 | list_add_tail(&slot->delivery, &dq->list); |
1926 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
4fefe5bb XC |
1927 | spin_lock_irqsave(&sas_dev->lock, flags); |
1928 | list_add_tail(&slot->entry, &sas_dev->list); | |
1929 | spin_unlock_irqrestore(&sas_dev->lock, flags); | |
441c2740 | 1930 | |
b1a49412 | 1931 | dlvry_queue = dq->id; |
fa222db0 | 1932 | dlvry_queue_slot = wr_q_index; |
b1a49412 | 1933 | |
4fefe5bb | 1934 | slot->device_id = sas_dev->device_id; |
441c2740 JG |
1935 | slot->n_elem = n_elem; |
1936 | slot->dlvry_queue = dlvry_queue; | |
1937 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
1938 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
1939 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
1940 | slot->task = task; | |
1941 | slot->port = port; | |
cd938e53 | 1942 | slot->is_internal = true; |
441c2740 JG |
1943 | task->lldd_task = slot; |
1944 | ||
1945 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); | |
031da09c XC |
1946 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
1947 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
441c2740 | 1948 | |
a2b3820b | 1949 | hisi_sas_task_prep_abort(hisi_hba, slot, device_id, |
441c2740 | 1950 | abort_flag, task_tag); |
441c2740 | 1951 | |
54c9dd2d | 1952 | spin_lock_irqsave(&task->task_state_lock, flags); |
441c2740 | 1953 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 1954 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
1c09b663 | 1955 | WRITE_ONCE(slot->ready, 1); |
b1a49412 | 1956 | /* send abort command to the chip */ |
fa222db0 | 1957 | spin_lock_irqsave(&dq->lock, flags); |
b1a49412 | 1958 | hisi_hba->hw->start_delivery(dq); |
fa222db0 | 1959 | spin_unlock_irqrestore(&dq->lock, flags); |
441c2740 JG |
1960 | |
1961 | return 0; | |
1962 | ||
1963 | err_out_tag: | |
1964 | hisi_sas_slot_index_free(hisi_hba, slot_idx); | |
1965 | err_out: | |
1966 | dev_err(dev, "internal abort task prep: failed[%d]!\n", rc); | |
1967 | ||
1968 | return rc; | |
1969 | } | |
1970 | ||
1971 | /** | |
795f25a3 | 1972 | * _hisi_sas_internal_task_abort -- execute an internal |
441c2740 JG |
1973 | * abort command for single IO command or a device |
1974 | * @hisi_hba: host controller struct | |
1975 | * @device: domain device | |
1976 | * @abort_flag: mode of operation, device or single IO | |
1977 | * @tag: tag of IO to be aborted (only relevant to single | |
1978 | * IO mode) | |
795f25a3 | 1979 | * @dq: delivery queue for this internal abort command |
441c2740 JG |
1980 | */ |
1981 | static int | |
795f25a3 JG |
1982 | _hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, |
1983 | struct domain_device *device, int abort_flag, | |
1984 | int tag, struct hisi_sas_dq *dq) | |
441c2740 JG |
1985 | { |
1986 | struct sas_task *task; | |
1987 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1988 | struct device *dev = hisi_hba->dev; |
441c2740 | 1989 | int res; |
441c2740 | 1990 | |
813709f2 XT |
1991 | /* |
1992 | * The interface is not realized means this HW don't support internal | |
1993 | * abort, or don't need to do internal abort. Then here, we return | |
1994 | * TMF_RESP_FUNC_FAILED and let other steps go on, which depends that | |
1995 | * the internal abort has been executed and returned CQ. | |
1996 | */ | |
441c2740 | 1997 | if (!hisi_hba->hw->prep_abort) |
813709f2 | 1998 | return TMF_RESP_FUNC_FAILED; |
441c2740 JG |
1999 | |
2000 | task = sas_alloc_slow_task(GFP_KERNEL); | |
2001 | if (!task) | |
2002 | return -ENOMEM; | |
2003 | ||
2004 | task->dev = device; | |
2005 | task->task_proto = device->tproto; | |
2006 | task->task_done = hisi_sas_task_done; | |
841b86f3 | 2007 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
4a8bec88 | 2008 | task->slow_task->timer.expires = jiffies + INTERNAL_ABORT_TIMEOUT * HZ; |
441c2740 JG |
2009 | add_timer(&task->slow_task->timer); |
2010 | ||
441c2740 | 2011 | res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id, |
795f25a3 | 2012 | task, abort_flag, tag, dq); |
441c2740 JG |
2013 | if (res) { |
2014 | del_timer(&task->slow_task->timer); | |
2015 | dev_err(dev, "internal task abort: executing internal task failed: %d\n", | |
2016 | res); | |
2017 | goto exit; | |
2018 | } | |
2019 | wait_for_completion(&task->slow_task->completion); | |
2020 | res = TMF_RESP_FUNC_FAILED; | |
2021 | ||
f64a6988 XC |
2022 | /* Internal abort timed out */ |
2023 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
2024 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
2025 | struct hisi_sas_slot *slot = task->lldd_task; | |
584f53fe XC |
2026 | |
2027 | if (slot) { | |
f4445bb9 GS |
2028 | struct hisi_sas_cq *cq = |
2029 | &hisi_hba->cq[slot->dlvry_queue]; | |
584f53fe XC |
2030 | /* |
2031 | * flush tasklet to avoid free'ing task | |
2032 | * before using task in IO completion | |
2033 | */ | |
2034 | tasklet_kill(&cq->tasklet); | |
f64a6988 | 2035 | slot->task = NULL; |
584f53fe | 2036 | } |
f1c88211 | 2037 | dev_err(dev, "internal task abort: timeout and not done.\n"); |
49159a5e | 2038 | |
813709f2 | 2039 | res = -EIO; |
f692a677 | 2040 | goto exit; |
f1c88211 XC |
2041 | } else |
2042 | dev_err(dev, "internal task abort: timeout.\n"); | |
f64a6988 XC |
2043 | } |
2044 | ||
441c2740 JG |
2045 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
2046 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { | |
2047 | res = TMF_RESP_FUNC_COMPLETE; | |
2048 | goto exit; | |
2049 | } | |
2050 | ||
c35279f2 JG |
2051 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
2052 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
2053 | res = TMF_RESP_FUNC_SUCC; | |
2054 | goto exit; | |
2055 | } | |
2056 | ||
441c2740 | 2057 | exit: |
297d7302 | 2058 | dev_dbg(dev, "internal task abort: task to dev %016llx task=%p " |
441c2740 JG |
2059 | "resp: 0x%x sts 0x%x\n", |
2060 | SAS_ADDR(device->sas_addr), | |
2061 | task, | |
2062 | task->task_status.resp, /* 0 is complete, -1 is undelivered */ | |
2063 | task->task_status.stat); | |
2064 | sas_free_task(task); | |
2065 | ||
2066 | return res; | |
2067 | } | |
2068 | ||
795f25a3 JG |
2069 | static int |
2070 | hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, | |
2071 | struct domain_device *device, | |
2072 | int abort_flag, int tag) | |
2073 | { | |
2074 | struct hisi_sas_slot *slot; | |
2075 | struct device *dev = hisi_hba->dev; | |
2076 | struct hisi_sas_dq *dq; | |
2077 | int i, rc; | |
2078 | ||
2079 | switch (abort_flag) { | |
2080 | case HISI_SAS_INT_ABT_CMD: | |
2081 | slot = &hisi_hba->slot_info[tag]; | |
2082 | dq = &hisi_hba->dq[slot->dlvry_queue]; | |
2083 | return _hisi_sas_internal_task_abort(hisi_hba, device, | |
2084 | abort_flag, tag, dq); | |
2085 | case HISI_SAS_INT_ABT_DEV: | |
2086 | for (i = 0; i < hisi_hba->cq_nvecs; i++) { | |
4fefe5bb XC |
2087 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
2088 | const struct cpumask *mask = cq->pci_irq_mask; | |
2089 | ||
2090 | if (mask && !cpumask_intersects(cpu_online_mask, mask)) | |
2091 | continue; | |
795f25a3 JG |
2092 | dq = &hisi_hba->dq[i]; |
2093 | rc = _hisi_sas_internal_task_abort(hisi_hba, device, | |
2094 | abort_flag, tag, | |
2095 | dq); | |
2096 | if (rc) | |
2097 | return rc; | |
2098 | } | |
2099 | break; | |
2100 | default: | |
2101 | dev_err(dev, "Unrecognised internal abort flag (%d)\n", | |
2102 | abort_flag); | |
2103 | return -EINVAL; | |
2104 | } | |
2105 | ||
2106 | return 0; | |
2107 | } | |
2108 | ||
184a4635 JG |
2109 | static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy) |
2110 | { | |
2111 | hisi_sas_port_notify_formed(sas_phy); | |
2112 | } | |
2113 | ||
6379c560 XT |
2114 | static int hisi_sas_write_gpio(struct sas_ha_struct *sha, u8 reg_type, |
2115 | u8 reg_index, u8 reg_count, u8 *write_data) | |
2116 | { | |
2117 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
2118 | ||
2119 | if (!hisi_hba->hw->write_gpio) | |
2120 | return -EOPNOTSUPP; | |
2121 | ||
2122 | return hisi_hba->hw->write_gpio(hisi_hba, reg_type, | |
2123 | reg_index, reg_count, write_data); | |
2124 | } | |
2125 | ||
184a4635 JG |
2126 | static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy) |
2127 | { | |
2128 | phy->phy_attached = 0; | |
2129 | phy->phy_type = 0; | |
2130 | phy->port = NULL; | |
2131 | } | |
2132 | ||
2133 | void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) | |
2134 | { | |
2135 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
2136 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
2137 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
3e1fb1b8 | 2138 | struct device *dev = hisi_hba->dev; |
184a4635 JG |
2139 | |
2140 | if (rdy) { | |
2141 | /* Phy down but ready */ | |
2142 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
2143 | hisi_sas_port_notify_formed(sas_phy); | |
2144 | } else { | |
2145 | struct hisi_sas_port *port = phy->port; | |
2146 | ||
ed99e1d9 XT |
2147 | if (test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags) || |
2148 | phy->in_reset) { | |
3e1fb1b8 XC |
2149 | dev_info(dev, "ignore flutter phy%d down\n", phy_no); |
2150 | return; | |
2151 | } | |
184a4635 JG |
2152 | /* Phy down and not ready */ |
2153 | sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL); | |
2154 | sas_phy_disconnected(sas_phy); | |
2155 | ||
2156 | if (port) { | |
2157 | if (phy->phy_type & PORT_TYPE_SAS) { | |
2158 | int port_id = port->id; | |
2159 | ||
2160 | if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba, | |
2161 | port_id)) | |
2162 | port->port_attached = 0; | |
2163 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
2164 | port->port_attached = 0; | |
2165 | } | |
2166 | hisi_sas_phy_disconnected(phy); | |
2167 | } | |
2168 | } | |
2169 | EXPORT_SYMBOL_GPL(hisi_sas_phy_down); | |
2170 | ||
571295f8 XT |
2171 | void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba) |
2172 | { | |
2173 | int i; | |
2174 | ||
795f25a3 | 2175 | for (i = 0; i < hisi_hba->cq_nvecs; i++) { |
571295f8 XT |
2176 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
2177 | ||
2178 | tasklet_kill(&cq->tasklet); | |
2179 | } | |
2180 | } | |
2181 | EXPORT_SYMBOL_GPL(hisi_sas_kill_tasklets); | |
06ec0fb9 | 2182 | |
e21fe3a5 JG |
2183 | struct scsi_transport_template *hisi_sas_stt; |
2184 | EXPORT_SYMBOL_GPL(hisi_sas_stt); | |
e8899fad JG |
2185 | |
2186 | static struct sas_domain_function_template hisi_sas_transport_ops = { | |
abda97c2 JG |
2187 | .lldd_dev_found = hisi_sas_dev_found, |
2188 | .lldd_dev_gone = hisi_sas_dev_gone, | |
42e7a693 | 2189 | .lldd_execute_task = hisi_sas_queue_command, |
e4189d53 | 2190 | .lldd_control_phy = hisi_sas_control_phy, |
0efff300 JG |
2191 | .lldd_abort_task = hisi_sas_abort_task, |
2192 | .lldd_abort_task_set = hisi_sas_abort_task_set, | |
2193 | .lldd_clear_aca = hisi_sas_clear_aca, | |
2194 | .lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset, | |
2195 | .lldd_lu_reset = hisi_sas_lu_reset, | |
2196 | .lldd_query_task = hisi_sas_query_task, | |
640208a1 | 2197 | .lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha, |
184a4635 | 2198 | .lldd_port_formed = hisi_sas_port_formed, |
640208a1 | 2199 | .lldd_write_gpio = hisi_sas_write_gpio, |
e8899fad JG |
2200 | }; |
2201 | ||
06ec0fb9 XC |
2202 | void hisi_sas_init_mem(struct hisi_hba *hisi_hba) |
2203 | { | |
26889e5e JG |
2204 | int i, s, j, max_command_entries = hisi_hba->hw->max_command_entries; |
2205 | struct hisi_sas_breakpoint *sata_breakpoint = hisi_hba->sata_breakpoint; | |
06ec0fb9 XC |
2206 | |
2207 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
2208 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
2209 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; | |
26889e5e JG |
2210 | struct hisi_sas_cmd_hdr *cmd_hdr = hisi_hba->cmd_hdr[i]; |
2211 | ||
2212 | s = sizeof(struct hisi_sas_cmd_hdr); | |
2213 | for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++) | |
2214 | memset(&cmd_hdr[j], 0, s); | |
06ec0fb9 | 2215 | |
06ec0fb9 XC |
2216 | dq->wr_point = 0; |
2217 | ||
2218 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
2219 | memset(hisi_hba->complete_hdr[i], 0, s); | |
2220 | cq->rd_point = 0; | |
2221 | } | |
2222 | ||
2223 | s = sizeof(struct hisi_sas_initial_fis) * hisi_hba->n_phy; | |
2224 | memset(hisi_hba->initial_fis, 0, s); | |
2225 | ||
2226 | s = max_command_entries * sizeof(struct hisi_sas_iost); | |
2227 | memset(hisi_hba->iost, 0, s); | |
2228 | ||
2229 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); | |
2230 | memset(hisi_hba->breakpoint, 0, s); | |
2231 | ||
26889e5e JG |
2232 | s = sizeof(struct hisi_sas_sata_breakpoint); |
2233 | for (j = 0; j < HISI_SAS_MAX_ITCT_ENTRIES; j++) | |
2234 | memset(&sata_breakpoint[j], 0, s); | |
06ec0fb9 XC |
2235 | } |
2236 | EXPORT_SYMBOL_GPL(hisi_sas_init_mem); | |
2237 | ||
ae68b566 | 2238 | int hisi_sas_alloc(struct hisi_hba *hisi_hba) |
6be6de18 | 2239 | { |
11b75249 | 2240 | struct device *dev = hisi_hba->dev; |
2ba5afb6 XC |
2241 | int i, j, s, max_command_entries = hisi_hba->hw->max_command_entries; |
2242 | int max_command_entries_ru, sz_slot_buf_ru; | |
2243 | int blk_cnt, slots_per_blk; | |
6be6de18 | 2244 | |
d2fc401e | 2245 | sema_init(&hisi_hba->sem, 1); |
fa42d80d | 2246 | spin_lock_init(&hisi_hba->lock); |
976867e6 JG |
2247 | for (i = 0; i < hisi_hba->n_phy; i++) { |
2248 | hisi_sas_phy_init(hisi_hba, i); | |
2249 | hisi_hba->port[i].port_attached = 0; | |
2250 | hisi_hba->port[i].id = -1; | |
976867e6 JG |
2251 | } |
2252 | ||
af740dbe JG |
2253 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
2254 | hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED; | |
2255 | hisi_hba->devices[i].device_id = i; | |
af740dbe JG |
2256 | } |
2257 | ||
6be6de18 | 2258 | for (i = 0; i < hisi_hba->queue_count; i++) { |
9101a079 | 2259 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
4fde02ad | 2260 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; |
9101a079 JG |
2261 | |
2262 | /* Completion queue structure */ | |
2263 | cq->id = i; | |
2264 | cq->hisi_hba = hisi_hba; | |
2265 | ||
4fde02ad | 2266 | /* Delivery queue structure */ |
39bade0c | 2267 | spin_lock_init(&dq->lock); |
fa222db0 | 2268 | INIT_LIST_HEAD(&dq->list); |
4fde02ad JG |
2269 | dq->id = i; |
2270 | dq->hisi_hba = hisi_hba; | |
2271 | ||
6be6de18 JG |
2272 | /* Delivery queue */ |
2273 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
4e63ac82 XC |
2274 | hisi_hba->cmd_hdr[i] = dmam_alloc_coherent(dev, s, |
2275 | &hisi_hba->cmd_hdr_dma[i], | |
2276 | GFP_KERNEL); | |
6be6de18 JG |
2277 | if (!hisi_hba->cmd_hdr[i]) |
2278 | goto err_out; | |
6be6de18 JG |
2279 | |
2280 | /* Completion queue */ | |
2281 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
4e63ac82 XC |
2282 | hisi_hba->complete_hdr[i] = dmam_alloc_coherent(dev, s, |
2283 | &hisi_hba->complete_hdr_dma[i], | |
2284 | GFP_KERNEL); | |
6be6de18 JG |
2285 | if (!hisi_hba->complete_hdr[i]) |
2286 | goto err_out; | |
6be6de18 JG |
2287 | } |
2288 | ||
6be6de18 | 2289 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); |
4e63ac82 | 2290 | hisi_hba->itct = dmam_alloc_coherent(dev, s, &hisi_hba->itct_dma, |
26889e5e | 2291 | GFP_KERNEL | __GFP_ZERO); |
6be6de18 JG |
2292 | if (!hisi_hba->itct) |
2293 | goto err_out; | |
2294 | ||
a8d547bd | 2295 | hisi_hba->slot_info = devm_kcalloc(dev, max_command_entries, |
6be6de18 JG |
2296 | sizeof(struct hisi_sas_slot), |
2297 | GFP_KERNEL); | |
2298 | if (!hisi_hba->slot_info) | |
2299 | goto err_out; | |
2300 | ||
2ba5afb6 XC |
2301 | /* roundup to avoid overly large block size */ |
2302 | max_command_entries_ru = roundup(max_command_entries, 64); | |
b3cce125 XC |
2303 | if (hisi_hba->prot_mask & HISI_SAS_DIX_PROT_MASK) |
2304 | sz_slot_buf_ru = sizeof(struct hisi_sas_slot_dif_buf_table); | |
2305 | else | |
2306 | sz_slot_buf_ru = sizeof(struct hisi_sas_slot_buf_table); | |
2307 | sz_slot_buf_ru = roundup(sz_slot_buf_ru, 64); | |
2ba5afb6 XC |
2308 | s = lcm(max_command_entries_ru, sz_slot_buf_ru); |
2309 | blk_cnt = (max_command_entries_ru * sz_slot_buf_ru) / s; | |
2310 | slots_per_blk = s / sz_slot_buf_ru; | |
b3cce125 | 2311 | |
2ba5afb6 | 2312 | for (i = 0; i < blk_cnt; i++) { |
2ba5afb6 | 2313 | int slot_index = i * slots_per_blk; |
b3cce125 XC |
2314 | dma_addr_t buf_dma; |
2315 | void *buf; | |
2ba5afb6 | 2316 | |
b3cce125 XC |
2317 | buf = dmam_alloc_coherent(dev, s, &buf_dma, |
2318 | GFP_KERNEL | __GFP_ZERO); | |
2ba5afb6 XC |
2319 | if (!buf) |
2320 | goto err_out; | |
2ba5afb6 XC |
2321 | |
2322 | for (j = 0; j < slots_per_blk; j++, slot_index++) { | |
2323 | struct hisi_sas_slot *slot; | |
2324 | ||
2325 | slot = &hisi_hba->slot_info[slot_index]; | |
2326 | slot->buf = buf; | |
2327 | slot->buf_dma = buf_dma; | |
2328 | slot->idx = slot_index; | |
2329 | ||
b3cce125 XC |
2330 | buf += sz_slot_buf_ru; |
2331 | buf_dma += sz_slot_buf_ru; | |
2ba5afb6 XC |
2332 | } |
2333 | } | |
2334 | ||
a8d547bd | 2335 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
4e63ac82 XC |
2336 | hisi_hba->iost = dmam_alloc_coherent(dev, s, &hisi_hba->iost_dma, |
2337 | GFP_KERNEL); | |
6be6de18 JG |
2338 | if (!hisi_hba->iost) |
2339 | goto err_out; | |
2340 | ||
a8d547bd | 2341 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
4e63ac82 XC |
2342 | hisi_hba->breakpoint = dmam_alloc_coherent(dev, s, |
2343 | &hisi_hba->breakpoint_dma, | |
2344 | GFP_KERNEL); | |
6be6de18 JG |
2345 | if (!hisi_hba->breakpoint) |
2346 | goto err_out; | |
2347 | ||
a8d547bd | 2348 | hisi_hba->slot_index_count = max_command_entries; |
433f5696 | 2349 | s = hisi_hba->slot_index_count / BITS_PER_BYTE; |
257efd1f JG |
2350 | hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL); |
2351 | if (!hisi_hba->slot_index_tags) | |
2352 | goto err_out; | |
2353 | ||
6be6de18 | 2354 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; |
4e63ac82 XC |
2355 | hisi_hba->initial_fis = dmam_alloc_coherent(dev, s, |
2356 | &hisi_hba->initial_fis_dma, | |
2357 | GFP_KERNEL); | |
6be6de18 JG |
2358 | if (!hisi_hba->initial_fis) |
2359 | goto err_out; | |
6be6de18 | 2360 | |
3297ded1 | 2361 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
4e63ac82 XC |
2362 | hisi_hba->sata_breakpoint = dmam_alloc_coherent(dev, s, |
2363 | &hisi_hba->sata_breakpoint_dma, | |
2364 | GFP_KERNEL); | |
6be6de18 JG |
2365 | if (!hisi_hba->sata_breakpoint) |
2366 | goto err_out; | |
06ec0fb9 | 2367 | hisi_sas_init_mem(hisi_hba); |
6be6de18 | 2368 | |
257efd1f | 2369 | hisi_sas_slot_index_init(hisi_hba); |
784b46b7 XC |
2370 | hisi_hba->last_slot_index = hisi_hba->hw->max_command_entries - |
2371 | HISI_SAS_RESERVED_IPTT_CNT; | |
257efd1f | 2372 | |
7e9080e1 JG |
2373 | hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); |
2374 | if (!hisi_hba->wq) { | |
2375 | dev_err(dev, "sas_alloc: failed to create workqueue\n"); | |
2376 | goto err_out; | |
2377 | } | |
2378 | ||
6be6de18 JG |
2379 | return 0; |
2380 | err_out: | |
2381 | return -ENOMEM; | |
2382 | } | |
e21fe3a5 | 2383 | EXPORT_SYMBOL_GPL(hisi_sas_alloc); |
6be6de18 | 2384 | |
e21fe3a5 | 2385 | void hisi_sas_free(struct hisi_hba *hisi_hba) |
89d53322 | 2386 | { |
7e9080e1 JG |
2387 | if (hisi_hba->wq) |
2388 | destroy_workqueue(hisi_hba->wq); | |
89d53322 | 2389 | } |
e21fe3a5 | 2390 | EXPORT_SYMBOL_GPL(hisi_sas_free); |
6be6de18 | 2391 | |
b4241f0f | 2392 | void hisi_sas_rst_work_handler(struct work_struct *work) |
06ec0fb9 XC |
2393 | { |
2394 | struct hisi_hba *hisi_hba = | |
2395 | container_of(work, struct hisi_hba, rst_work); | |
2396 | ||
2397 | hisi_sas_controller_reset(hisi_hba); | |
2398 | } | |
b4241f0f | 2399 | EXPORT_SYMBOL_GPL(hisi_sas_rst_work_handler); |
06ec0fb9 | 2400 | |
e402acdb XT |
2401 | void hisi_sas_sync_rst_work_handler(struct work_struct *work) |
2402 | { | |
2403 | struct hisi_sas_rst *rst = | |
2404 | container_of(work, struct hisi_sas_rst, work); | |
2405 | ||
2406 | if (!hisi_sas_controller_reset(rst->hisi_hba)) | |
2407 | rst->done = true; | |
2408 | complete(rst->completion); | |
2409 | } | |
2410 | EXPORT_SYMBOL_GPL(hisi_sas_sync_rst_work_handler); | |
2411 | ||
0fa24c19 | 2412 | int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba) |
7eb7869f | 2413 | { |
0fa24c19 JG |
2414 | struct device *dev = hisi_hba->dev; |
2415 | struct platform_device *pdev = hisi_hba->platform_dev; | |
2416 | struct device_node *np = pdev ? pdev->dev.of_node : NULL; | |
3bc45af8 | 2417 | struct clk *refclk; |
7eb7869f | 2418 | |
4d558c77 | 2419 | if (device_property_read_u8_array(dev, "sas-addr", hisi_hba->sas_addr, |
0fa24c19 JG |
2420 | SAS_ADDR_SIZE)) { |
2421 | dev_err(dev, "could not get property sas-addr\n"); | |
2422 | return -ENOENT; | |
2423 | } | |
e26b2f40 | 2424 | |
4d558c77 | 2425 | if (np) { |
0fa24c19 JG |
2426 | /* |
2427 | * These properties are only required for platform device-based | |
2428 | * controller with DT firmware. | |
2429 | */ | |
4d558c77 JG |
2430 | hisi_hba->ctrl = syscon_regmap_lookup_by_phandle(np, |
2431 | "hisilicon,sas-syscon"); | |
0fa24c19 JG |
2432 | if (IS_ERR(hisi_hba->ctrl)) { |
2433 | dev_err(dev, "could not get syscon\n"); | |
2434 | return -ENOENT; | |
2435 | } | |
e26b2f40 | 2436 | |
4d558c77 | 2437 | if (device_property_read_u32(dev, "ctrl-reset-reg", |
0fa24c19 JG |
2438 | &hisi_hba->ctrl_reset_reg)) { |
2439 | dev_err(dev, | |
2440 | "could not get property ctrl-reset-reg\n"); | |
2441 | return -ENOENT; | |
2442 | } | |
e26b2f40 | 2443 | |
4d558c77 | 2444 | if (device_property_read_u32(dev, "ctrl-reset-sts-reg", |
0fa24c19 JG |
2445 | &hisi_hba->ctrl_reset_sts_reg)) { |
2446 | dev_err(dev, | |
2447 | "could not get property ctrl-reset-sts-reg\n"); | |
2448 | return -ENOENT; | |
2449 | } | |
e26b2f40 | 2450 | |
4d558c77 | 2451 | if (device_property_read_u32(dev, "ctrl-clock-ena-reg", |
0fa24c19 JG |
2452 | &hisi_hba->ctrl_clock_ena_reg)) { |
2453 | dev_err(dev, | |
2454 | "could not get property ctrl-clock-ena-reg\n"); | |
2455 | return -ENOENT; | |
2456 | } | |
4d558c77 JG |
2457 | } |
2458 | ||
0fa24c19 | 2459 | refclk = devm_clk_get(dev, NULL); |
3bc45af8 | 2460 | if (IS_ERR(refclk)) |
87e287c1 | 2461 | dev_dbg(dev, "no ref clk property\n"); |
3bc45af8 JG |
2462 | else |
2463 | hisi_hba->refclk_frequency_mhz = clk_get_rate(refclk) / 1000000; | |
2464 | ||
0fa24c19 JG |
2465 | if (device_property_read_u32(dev, "phy-count", &hisi_hba->n_phy)) { |
2466 | dev_err(dev, "could not get property phy-count\n"); | |
2467 | return -ENOENT; | |
2468 | } | |
e26b2f40 | 2469 | |
4d558c77 | 2470 | if (device_property_read_u32(dev, "queue-count", |
0fa24c19 JG |
2471 | &hisi_hba->queue_count)) { |
2472 | dev_err(dev, "could not get property queue-count\n"); | |
2473 | return -ENOENT; | |
2474 | } | |
2475 | ||
2476 | return 0; | |
2477 | } | |
2478 | EXPORT_SYMBOL_GPL(hisi_sas_get_fw_info); | |
2479 | ||
2480 | static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev, | |
2481 | const struct hisi_sas_hw *hw) | |
2482 | { | |
2483 | struct resource *res; | |
2484 | struct Scsi_Host *shost; | |
2485 | struct hisi_hba *hisi_hba; | |
2486 | struct device *dev = &pdev->dev; | |
2487 | ||
235bfc7f | 2488 | shost = scsi_host_alloc(hw->sht, sizeof(*hisi_hba)); |
0fa24c19 JG |
2489 | if (!shost) { |
2490 | dev_err(dev, "scsi host alloc failed\n"); | |
2491 | return NULL; | |
2492 | } | |
2493 | hisi_hba = shost_priv(shost); | |
2494 | ||
2495 | INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler); | |
2496 | hisi_hba->hw = hw; | |
2497 | hisi_hba->dev = dev; | |
2498 | hisi_hba->platform_dev = pdev; | |
2499 | hisi_hba->shost = shost; | |
2500 | SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; | |
2501 | ||
77570eed | 2502 | timer_setup(&hisi_hba->timer, NULL, 0); |
0fa24c19 JG |
2503 | |
2504 | if (hisi_sas_get_fw_info(hisi_hba) < 0) | |
e26b2f40 JG |
2505 | goto err_out; |
2506 | ||
a6f2c7ff JG |
2507 | if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) && |
2508 | dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) { | |
2509 | dev_err(dev, "No usable DMA addressing method\n"); | |
2510 | goto err_out; | |
2511 | } | |
2512 | ||
e26b2f40 JG |
2513 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
2514 | hisi_hba->regs = devm_ioremap_resource(dev, res); | |
2515 | if (IS_ERR(hisi_hba->regs)) | |
2516 | goto err_out; | |
2517 | ||
6379c560 XT |
2518 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
2519 | if (res) { | |
2520 | hisi_hba->sgpio_regs = devm_ioremap_resource(dev, res); | |
2521 | if (IS_ERR(hisi_hba->sgpio_regs)) | |
2522 | goto err_out; | |
2523 | } | |
2524 | ||
ae68b566 | 2525 | if (hisi_sas_alloc(hisi_hba)) { |
89d53322 | 2526 | hisi_sas_free(hisi_hba); |
6be6de18 | 2527 | goto err_out; |
89d53322 | 2528 | } |
6be6de18 | 2529 | |
7eb7869f JG |
2530 | return shost; |
2531 | err_out: | |
76aae5f6 | 2532 | scsi_host_put(shost); |
7eb7869f JG |
2533 | dev_err(dev, "shost alloc failed\n"); |
2534 | return NULL; | |
2535 | } | |
2536 | ||
2537 | int hisi_sas_probe(struct platform_device *pdev, | |
235bfc7f | 2538 | const struct hisi_sas_hw *hw) |
7eb7869f JG |
2539 | { |
2540 | struct Scsi_Host *shost; | |
2541 | struct hisi_hba *hisi_hba; | |
2542 | struct device *dev = &pdev->dev; | |
2543 | struct asd_sas_phy **arr_phy; | |
2544 | struct asd_sas_port **arr_port; | |
2545 | struct sas_ha_struct *sha; | |
2546 | int rc, phy_nr, port_nr, i; | |
2547 | ||
2548 | shost = hisi_sas_shost_alloc(pdev, hw); | |
d37a0082 XT |
2549 | if (!shost) |
2550 | return -ENOMEM; | |
7eb7869f JG |
2551 | |
2552 | sha = SHOST_TO_SAS_HA(shost); | |
2553 | hisi_hba = shost_priv(shost); | |
2554 | platform_set_drvdata(pdev, sha); | |
50cb916f | 2555 | |
7eb7869f JG |
2556 | phy_nr = port_nr = hisi_hba->n_phy; |
2557 | ||
2558 | arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); | |
2559 | arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); | |
d37a0082 XT |
2560 | if (!arr_phy || !arr_port) { |
2561 | rc = -ENOMEM; | |
2562 | goto err_out_ha; | |
2563 | } | |
7eb7869f JG |
2564 | |
2565 | sha->sas_phy = arr_phy; | |
2566 | sha->sas_port = arr_port; | |
7eb7869f JG |
2567 | sha->lldd_ha = hisi_hba; |
2568 | ||
2569 | shost->transportt = hisi_sas_stt; | |
2570 | shost->max_id = HISI_SAS_MAX_DEVICES; | |
2571 | shost->max_lun = ~0; | |
2572 | shost->max_channel = 1; | |
2573 | shost->max_cmd_len = 16; | |
784b46b7 XC |
2574 | if (hisi_hba->hw->slot_index_alloc) { |
2575 | shost->can_queue = hisi_hba->hw->max_command_entries; | |
2576 | shost->cmd_per_lun = hisi_hba->hw->max_command_entries; | |
2577 | } else { | |
2578 | shost->can_queue = hisi_hba->hw->max_command_entries - | |
2579 | HISI_SAS_RESERVED_IPTT_CNT; | |
2580 | shost->cmd_per_lun = hisi_hba->hw->max_command_entries - | |
2581 | HISI_SAS_RESERVED_IPTT_CNT; | |
2582 | } | |
7eb7869f JG |
2583 | |
2584 | sha->sas_ha_name = DRV_NAME; | |
11b75249 | 2585 | sha->dev = hisi_hba->dev; |
7eb7869f JG |
2586 | sha->lldd_module = THIS_MODULE; |
2587 | sha->sas_addr = &hisi_hba->sas_addr[0]; | |
2588 | sha->num_phys = hisi_hba->n_phy; | |
2589 | sha->core.shost = hisi_hba->shost; | |
2590 | ||
2591 | for (i = 0; i < hisi_hba->n_phy; i++) { | |
2592 | sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; | |
2593 | sha->sas_port[i] = &hisi_hba->port[i].sas_port; | |
2594 | } | |
2595 | ||
2596 | rc = scsi_add_host(shost, &pdev->dev); | |
2597 | if (rc) | |
2598 | goto err_out_ha; | |
2599 | ||
2600 | rc = sas_register_ha(sha); | |
2601 | if (rc) | |
2602 | goto err_out_register_ha; | |
2603 | ||
0757f041 XC |
2604 | rc = hisi_hba->hw->hw_init(hisi_hba); |
2605 | if (rc) | |
2606 | goto err_out_register_ha; | |
2607 | ||
7eb7869f JG |
2608 | scsi_scan_host(shost); |
2609 | ||
2610 | return 0; | |
2611 | ||
2612 | err_out_register_ha: | |
2613 | scsi_remove_host(shost); | |
2614 | err_out_ha: | |
d37a0082 | 2615 | hisi_sas_free(hisi_hba); |
76aae5f6 | 2616 | scsi_host_put(shost); |
7eb7869f JG |
2617 | return rc; |
2618 | } | |
2619 | EXPORT_SYMBOL_GPL(hisi_sas_probe); | |
2620 | ||
ef63464b LJ |
2621 | struct dentry *hisi_sas_debugfs_dir; |
2622 | ||
49159a5e LJ |
2623 | static void hisi_sas_debugfs_snapshot_cq_reg(struct hisi_hba *hisi_hba) |
2624 | { | |
2625 | int queue_entry_size = hisi_hba->hw->complete_hdr_size; | |
2626 | int i; | |
2627 | ||
2628 | for (i = 0; i < hisi_hba->queue_count; i++) | |
2629 | memcpy(hisi_hba->debugfs_complete_hdr[i], | |
2630 | hisi_hba->complete_hdr[i], | |
2631 | HISI_SAS_QUEUE_SLOTS * queue_entry_size); | |
2632 | } | |
2633 | ||
2634 | static void hisi_sas_debugfs_snapshot_dq_reg(struct hisi_hba *hisi_hba) | |
2635 | { | |
d1548e9c | 2636 | int queue_entry_size = sizeof(struct hisi_sas_cmd_hdr); |
49159a5e LJ |
2637 | int i; |
2638 | ||
26889e5e JG |
2639 | for (i = 0; i < hisi_hba->queue_count; i++) { |
2640 | struct hisi_sas_cmd_hdr *debugfs_cmd_hdr, *cmd_hdr; | |
2641 | int j; | |
2642 | ||
2643 | debugfs_cmd_hdr = hisi_hba->debugfs_cmd_hdr[i]; | |
2644 | cmd_hdr = hisi_hba->cmd_hdr[i]; | |
2645 | ||
2646 | for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++) | |
2647 | memcpy(&debugfs_cmd_hdr[j], &cmd_hdr[j], | |
2648 | queue_entry_size); | |
2649 | } | |
49159a5e LJ |
2650 | } |
2651 | ||
2652 | static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba) | |
2653 | { | |
2654 | const struct hisi_sas_debugfs_reg *port = | |
2655 | hisi_hba->hw->debugfs_reg_port; | |
2656 | int i, phy_cnt; | |
2657 | u32 offset; | |
2658 | u32 *databuf; | |
2659 | ||
2660 | for (phy_cnt = 0; phy_cnt < hisi_hba->n_phy; phy_cnt++) { | |
2661 | databuf = (u32 *)hisi_hba->debugfs_port_reg[phy_cnt]; | |
2662 | for (i = 0; i < port->count; i++, databuf++) { | |
2663 | offset = port->base_off + 4 * i; | |
2664 | *databuf = port->read_port_reg(hisi_hba, phy_cnt, | |
2665 | offset); | |
2666 | } | |
2667 | } | |
2668 | } | |
2669 | ||
2670 | static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba) | |
2671 | { | |
2672 | u32 *databuf = (u32 *)hisi_hba->debugfs_global_reg; | |
2673 | const struct hisi_sas_debugfs_reg *global = | |
2674 | hisi_hba->hw->debugfs_reg_global; | |
2675 | int i; | |
2676 | ||
2677 | for (i = 0; i < global->count; i++, databuf++) | |
2678 | *databuf = global->read_global_reg(hisi_hba, 4 * i); | |
2679 | } | |
2680 | ||
2681 | static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba) | |
2682 | { | |
2683 | void *databuf = hisi_hba->debugfs_itct; | |
2684 | struct hisi_sas_itct *itct; | |
2685 | int i; | |
2686 | ||
2687 | itct = hisi_hba->itct; | |
2688 | ||
2689 | for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) { | |
2690 | memcpy(databuf, itct, sizeof(struct hisi_sas_itct)); | |
2691 | databuf += sizeof(struct hisi_sas_itct); | |
2692 | } | |
2693 | } | |
2694 | ||
2695 | static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba) | |
2696 | { | |
2697 | int max_command_entries = hisi_hba->hw->max_command_entries; | |
2698 | void *databuf = hisi_hba->debugfs_iost; | |
2699 | struct hisi_sas_iost *iost; | |
2700 | int i; | |
2701 | ||
2702 | iost = hisi_hba->iost; | |
2703 | ||
2704 | for (i = 0; i < max_command_entries; i++, iost++) { | |
2705 | memcpy(databuf, iost, sizeof(struct hisi_sas_iost)); | |
2706 | databuf += sizeof(struct hisi_sas_iost); | |
2707 | } | |
2708 | } | |
2709 | ||
5b0eeac4 | 2710 | static const char * |
caefac19 LJ |
2711 | hisi_sas_debugfs_to_reg_name(int off, int base_off, |
2712 | const struct hisi_sas_debugfs_reg_lu *lu) | |
2713 | { | |
2714 | for (; lu->name; lu++) { | |
2715 | if (off == lu->off - base_off) | |
2716 | return lu->name; | |
2717 | } | |
2718 | ||
2719 | return NULL; | |
2720 | } | |
2721 | ||
2722 | static void hisi_sas_debugfs_print_reg(u32 *regs_val, const void *ptr, | |
2723 | struct seq_file *s) | |
2724 | { | |
2725 | const struct hisi_sas_debugfs_reg *reg = ptr; | |
2726 | int i; | |
2727 | ||
2728 | for (i = 0; i < reg->count; i++) { | |
2729 | int off = i * 4; | |
2730 | const char *name; | |
2731 | ||
2732 | name = hisi_sas_debugfs_to_reg_name(off, reg->base_off, | |
2733 | reg->lu); | |
2734 | ||
2735 | if (name) | |
2736 | seq_printf(s, "0x%08x 0x%08x %s\n", off, | |
5b0eeac4 | 2737 | regs_val[i], name); |
caefac19 LJ |
2738 | else |
2739 | seq_printf(s, "0x%08x 0x%08x\n", off, | |
5b0eeac4 | 2740 | regs_val[i]); |
caefac19 LJ |
2741 | } |
2742 | } | |
2743 | ||
2744 | static int hisi_sas_debugfs_global_show(struct seq_file *s, void *p) | |
2745 | { | |
2746 | struct hisi_hba *hisi_hba = s->private; | |
2747 | const struct hisi_sas_hw *hw = hisi_hba->hw; | |
2748 | const struct hisi_sas_debugfs_reg *reg_global = hw->debugfs_reg_global; | |
2749 | ||
5b0eeac4 | 2750 | hisi_sas_debugfs_print_reg(hisi_hba->debugfs_global_reg, |
caefac19 LJ |
2751 | reg_global, s); |
2752 | ||
2753 | return 0; | |
2754 | } | |
2755 | ||
2756 | static int hisi_sas_debugfs_global_open(struct inode *inode, struct file *filp) | |
2757 | { | |
2758 | return single_open(filp, hisi_sas_debugfs_global_show, | |
2759 | inode->i_private); | |
2760 | } | |
2761 | ||
2762 | static const struct file_operations hisi_sas_debugfs_global_fops = { | |
2763 | .open = hisi_sas_debugfs_global_open, | |
2764 | .read = seq_read, | |
2765 | .llseek = seq_lseek, | |
2766 | .release = single_release, | |
2767 | .owner = THIS_MODULE, | |
2768 | }; | |
2769 | ||
61a6ebf3 LJ |
2770 | static int hisi_sas_debugfs_port_show(struct seq_file *s, void *p) |
2771 | { | |
2772 | struct hisi_sas_phy *phy = s->private; | |
2773 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
2774 | const struct hisi_sas_hw *hw = hisi_hba->hw; | |
2775 | const struct hisi_sas_debugfs_reg *reg_port = hw->debugfs_reg_port; | |
2776 | u32 *databuf = hisi_hba->debugfs_port_reg[phy->sas_phy.id]; | |
2777 | ||
2778 | hisi_sas_debugfs_print_reg(databuf, reg_port, s); | |
2779 | ||
2780 | return 0; | |
2781 | } | |
2782 | ||
2783 | static int hisi_sas_debugfs_port_open(struct inode *inode, struct file *filp) | |
2784 | { | |
2785 | return single_open(filp, hisi_sas_debugfs_port_show, inode->i_private); | |
2786 | } | |
2787 | ||
2788 | static const struct file_operations hisi_sas_debugfs_port_fops = { | |
2789 | .open = hisi_sas_debugfs_port_open, | |
2790 | .read = seq_read, | |
2791 | .llseek = seq_lseek, | |
2792 | .release = single_release, | |
2793 | .owner = THIS_MODULE, | |
2794 | }; | |
2795 | ||
1afb4b85 | 2796 | static int hisi_sas_show_row_64(struct seq_file *s, int index, |
5b0eeac4 | 2797 | int sz, __le64 *ptr) |
1afb4b85 LJ |
2798 | { |
2799 | int i; | |
2800 | ||
2801 | /* completion header size not fixed per HW version */ | |
2802 | seq_printf(s, "index %04d:\n\t", index); | |
2803 | for (i = 1; i <= sz / 8; i++, ptr++) { | |
2804 | seq_printf(s, " 0x%016llx", le64_to_cpu(*ptr)); | |
2805 | if (!(i % 2)) | |
2806 | seq_puts(s, "\n\t"); | |
2807 | } | |
2808 | ||
2809 | seq_puts(s, "\n"); | |
2810 | ||
2811 | return 0; | |
2812 | } | |
2813 | ||
971afae7 | 2814 | static int hisi_sas_show_row_32(struct seq_file *s, int index, |
5b0eeac4 | 2815 | int sz, __le32 *ptr) |
971afae7 LJ |
2816 | { |
2817 | int i; | |
2818 | ||
2819 | /* completion header size not fixed per HW version */ | |
2820 | seq_printf(s, "index %04d:\n\t", index); | |
2821 | for (i = 1; i <= sz / 4; i++, ptr++) { | |
ede2afb9 | 2822 | seq_printf(s, " 0x%08x", le32_to_cpu(*ptr)); |
971afae7 LJ |
2823 | if (!(i % 4)) |
2824 | seq_puts(s, "\n\t"); | |
2825 | } | |
2826 | seq_puts(s, "\n"); | |
2827 | ||
2828 | return 0; | |
2829 | } | |
2830 | ||
2831 | static int hisi_sas_cq_show_slot(struct seq_file *s, int slot, void *cq_ptr) | |
2832 | { | |
2833 | struct hisi_sas_cq *cq = cq_ptr; | |
2834 | struct hisi_hba *hisi_hba = cq->hisi_hba; | |
2835 | void *complete_queue = hisi_hba->debugfs_complete_hdr[cq->id]; | |
5b0eeac4 | 2836 | __le32 *complete_hdr = complete_queue + |
971afae7 LJ |
2837 | (hisi_hba->hw->complete_hdr_size * slot); |
2838 | ||
2839 | return hisi_sas_show_row_32(s, slot, | |
2840 | hisi_hba->hw->complete_hdr_size, | |
2841 | complete_hdr); | |
2842 | } | |
2843 | ||
2844 | static int hisi_sas_debugfs_cq_show(struct seq_file *s, void *p) | |
2845 | { | |
2846 | struct hisi_sas_cq *cq = s->private; | |
2847 | int slot, ret; | |
2848 | ||
2849 | for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) { | |
2850 | ret = hisi_sas_cq_show_slot(s, slot, cq); | |
2851 | if (ret) | |
2852 | return ret; | |
2853 | } | |
2854 | return 0; | |
2855 | } | |
2856 | ||
2857 | static int hisi_sas_debugfs_cq_open(struct inode *inode, struct file *filp) | |
2858 | { | |
2859 | return single_open(filp, hisi_sas_debugfs_cq_show, inode->i_private); | |
2860 | } | |
2861 | ||
2862 | static const struct file_operations hisi_sas_debugfs_cq_fops = { | |
2863 | .open = hisi_sas_debugfs_cq_open, | |
2864 | .read = seq_read, | |
2865 | .llseek = seq_lseek, | |
2866 | .release = single_release, | |
2867 | .owner = THIS_MODULE, | |
2868 | }; | |
2869 | ||
148e379f LJ |
2870 | static int hisi_sas_dq_show_slot(struct seq_file *s, int slot, void *dq_ptr) |
2871 | { | |
2872 | struct hisi_sas_dq *dq = dq_ptr; | |
2873 | struct hisi_hba *hisi_hba = dq->hisi_hba; | |
2874 | void *cmd_queue = hisi_hba->debugfs_cmd_hdr[dq->id]; | |
5b0eeac4 JG |
2875 | __le32 *cmd_hdr = cmd_queue + |
2876 | sizeof(struct hisi_sas_cmd_hdr) * slot; | |
148e379f LJ |
2877 | |
2878 | return hisi_sas_show_row_32(s, slot, sizeof(struct hisi_sas_cmd_hdr), | |
2879 | cmd_hdr); | |
2880 | } | |
2881 | ||
2882 | static int hisi_sas_debugfs_dq_show(struct seq_file *s, void *p) | |
2883 | { | |
2884 | int slot, ret; | |
2885 | ||
2886 | for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) { | |
2887 | ret = hisi_sas_dq_show_slot(s, slot, s->private); | |
2888 | if (ret) | |
2889 | return ret; | |
2890 | } | |
2891 | return 0; | |
2892 | } | |
2893 | ||
2894 | static int hisi_sas_debugfs_dq_open(struct inode *inode, struct file *filp) | |
2895 | { | |
2896 | return single_open(filp, hisi_sas_debugfs_dq_show, inode->i_private); | |
2897 | } | |
2898 | ||
2899 | static const struct file_operations hisi_sas_debugfs_dq_fops = { | |
2900 | .open = hisi_sas_debugfs_dq_open, | |
2901 | .read = seq_read, | |
2902 | .llseek = seq_lseek, | |
2903 | .release = single_release, | |
2904 | .owner = THIS_MODULE, | |
2905 | }; | |
2906 | ||
1afb4b85 LJ |
2907 | static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p) |
2908 | { | |
2909 | struct hisi_hba *hisi_hba = s->private; | |
2910 | struct hisi_sas_iost *debugfs_iost = hisi_hba->debugfs_iost; | |
2911 | int i, ret, max_command_entries = hisi_hba->hw->max_command_entries; | |
5b0eeac4 | 2912 | __le64 *iost = &debugfs_iost->qw0; |
1afb4b85 LJ |
2913 | |
2914 | for (i = 0; i < max_command_entries; i++, debugfs_iost++) { | |
2915 | ret = hisi_sas_show_row_64(s, i, sizeof(*debugfs_iost), | |
5b0eeac4 | 2916 | iost); |
1afb4b85 LJ |
2917 | if (ret) |
2918 | return ret; | |
2919 | } | |
2920 | ||
2921 | return 0; | |
2922 | } | |
2923 | ||
2924 | static int hisi_sas_debugfs_iost_open(struct inode *inode, struct file *filp) | |
2925 | { | |
2926 | return single_open(filp, hisi_sas_debugfs_iost_show, inode->i_private); | |
2927 | } | |
2928 | ||
2929 | static const struct file_operations hisi_sas_debugfs_iost_fops = { | |
2930 | .open = hisi_sas_debugfs_iost_open, | |
2931 | .read = seq_read, | |
2932 | .llseek = seq_lseek, | |
2933 | .release = single_release, | |
2934 | .owner = THIS_MODULE, | |
2935 | }; | |
2936 | ||
5979f33b LJ |
2937 | static int hisi_sas_debugfs_itct_show(struct seq_file *s, void *p) |
2938 | { | |
2939 | int i, ret; | |
2940 | struct hisi_hba *hisi_hba = s->private; | |
2941 | struct hisi_sas_itct *debugfs_itct = hisi_hba->debugfs_itct; | |
2942 | __le64 *itct = &debugfs_itct->qw0; | |
2943 | ||
2944 | for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, debugfs_itct++) { | |
2945 | ret = hisi_sas_show_row_64(s, i, sizeof(*debugfs_itct), | |
2946 | itct); | |
2947 | if (ret) | |
2948 | return ret; | |
2949 | } | |
2950 | ||
2951 | return 0; | |
2952 | } | |
2953 | ||
2954 | static int hisi_sas_debugfs_itct_open(struct inode *inode, struct file *filp) | |
2955 | { | |
2956 | return single_open(filp, hisi_sas_debugfs_itct_show, inode->i_private); | |
2957 | } | |
2958 | ||
2959 | static const struct file_operations hisi_sas_debugfs_itct_fops = { | |
2960 | .open = hisi_sas_debugfs_itct_open, | |
2961 | .read = seq_read, | |
2962 | .llseek = seq_lseek, | |
2963 | .release = single_release, | |
2964 | .owner = THIS_MODULE, | |
2965 | }; | |
2966 | ||
49159a5e LJ |
2967 | static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) |
2968 | { | |
2969 | struct dentry *dump_dentry; | |
61a6ebf3 LJ |
2970 | struct dentry *dentry; |
2971 | char name[256]; | |
2972 | int p; | |
971afae7 | 2973 | int c; |
148e379f | 2974 | int d; |
49159a5e LJ |
2975 | |
2976 | /* Create dump dir inside device dir */ | |
2977 | dump_dentry = debugfs_create_dir("dump", hisi_hba->debugfs_dir); | |
49159a5e | 2978 | hisi_hba->debugfs_dump_dentry = dump_dentry; |
caefac19 | 2979 | |
c2c7e740 JG |
2980 | debugfs_create_file("global", 0400, dump_dentry, hisi_hba, |
2981 | &hisi_sas_debugfs_global_fops); | |
61a6ebf3 LJ |
2982 | |
2983 | /* Create port dir and files */ | |
2984 | dentry = debugfs_create_dir("port", dump_dentry); | |
61a6ebf3 LJ |
2985 | for (p = 0; p < hisi_hba->n_phy; p++) { |
2986 | snprintf(name, 256, "%d", p); | |
c2c7e740 JG |
2987 | |
2988 | debugfs_create_file(name, 0400, dentry, &hisi_hba->phy[p], | |
2989 | &hisi_sas_debugfs_port_fops); | |
61a6ebf3 LJ |
2990 | } |
2991 | ||
971afae7 LJ |
2992 | /* Create CQ dir and files */ |
2993 | dentry = debugfs_create_dir("cq", dump_dentry); | |
971afae7 LJ |
2994 | for (c = 0; c < hisi_hba->queue_count; c++) { |
2995 | snprintf(name, 256, "%d", c); | |
2996 | ||
c2c7e740 JG |
2997 | debugfs_create_file(name, 0400, dentry, &hisi_hba->cq[c], |
2998 | &hisi_sas_debugfs_cq_fops); | |
971afae7 LJ |
2999 | } |
3000 | ||
148e379f LJ |
3001 | /* Create DQ dir and files */ |
3002 | dentry = debugfs_create_dir("dq", dump_dentry); | |
148e379f LJ |
3003 | for (d = 0; d < hisi_hba->queue_count; d++) { |
3004 | snprintf(name, 256, "%d", d); | |
3005 | ||
c2c7e740 JG |
3006 | debugfs_create_file(name, 0400, dentry, &hisi_hba->dq[d], |
3007 | &hisi_sas_debugfs_dq_fops); | |
148e379f LJ |
3008 | } |
3009 | ||
c2c7e740 JG |
3010 | debugfs_create_file("iost", 0400, dump_dentry, hisi_hba, |
3011 | &hisi_sas_debugfs_iost_fops); | |
1afb4b85 | 3012 | |
5979f33b LJ |
3013 | debugfs_create_file("itct", 0400, dump_dentry, hisi_hba, |
3014 | &hisi_sas_debugfs_itct_fops); | |
3015 | ||
49159a5e | 3016 | return; |
49159a5e LJ |
3017 | } |
3018 | ||
3019 | static void hisi_sas_debugfs_snapshot_regs(struct hisi_hba *hisi_hba) | |
3020 | { | |
3021 | hisi_hba->hw->snapshot_prepare(hisi_hba); | |
3022 | ||
3023 | hisi_sas_debugfs_snapshot_global_reg(hisi_hba); | |
3024 | hisi_sas_debugfs_snapshot_port_reg(hisi_hba); | |
3025 | hisi_sas_debugfs_snapshot_cq_reg(hisi_hba); | |
3026 | hisi_sas_debugfs_snapshot_dq_reg(hisi_hba); | |
3027 | hisi_sas_debugfs_snapshot_itct_reg(hisi_hba); | |
3028 | hisi_sas_debugfs_snapshot_iost_reg(hisi_hba); | |
3029 | ||
3030 | hisi_sas_debugfs_create_files(hisi_hba); | |
3031 | ||
3032 | hisi_hba->hw->snapshot_restore(hisi_hba); | |
3033 | } | |
3034 | ||
7c5e1363 LJ |
3035 | static ssize_t hisi_sas_debugfs_trigger_dump_write(struct file *file, |
3036 | const char __user *user_buf, | |
3037 | size_t count, loff_t *ppos) | |
3038 | { | |
3039 | struct hisi_hba *hisi_hba = file->f_inode->i_private; | |
3040 | char buf[8]; | |
3041 | ||
3042 | /* A bit racy, but don't care too much since it's only debugfs */ | |
3043 | if (hisi_hba->debugfs_snapshot) | |
3044 | return -EFAULT; | |
3045 | ||
3046 | if (count > 8) | |
3047 | return -EFAULT; | |
3048 | ||
3049 | if (copy_from_user(buf, user_buf, count)) | |
3050 | return -EFAULT; | |
3051 | ||
3052 | if (buf[0] != '1') | |
3053 | return -EFAULT; | |
3054 | ||
3055 | queue_work(hisi_hba->wq, &hisi_hba->debugfs_work); | |
3056 | ||
3057 | return count; | |
3058 | } | |
3059 | ||
3060 | static const struct file_operations hisi_sas_debugfs_trigger_dump_fops = { | |
3061 | .write = &hisi_sas_debugfs_trigger_dump_write, | |
3062 | .owner = THIS_MODULE, | |
3063 | }; | |
3064 | ||
49159a5e LJ |
3065 | void hisi_sas_debugfs_work_handler(struct work_struct *work) |
3066 | { | |
3067 | struct hisi_hba *hisi_hba = | |
3068 | container_of(work, struct hisi_hba, debugfs_work); | |
3069 | ||
c2c7e740 JG |
3070 | if (hisi_hba->debugfs_snapshot) |
3071 | return; | |
3072 | hisi_hba->debugfs_snapshot = true; | |
3073 | ||
49159a5e LJ |
3074 | hisi_sas_debugfs_snapshot_regs(hisi_hba); |
3075 | } | |
3076 | EXPORT_SYMBOL_GPL(hisi_sas_debugfs_work_handler); | |
3077 | ||
ef63464b LJ |
3078 | void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba) |
3079 | { | |
eb1c2b72 | 3080 | int max_command_entries = hisi_hba->hw->max_command_entries; |
ef63464b | 3081 | struct device *dev = hisi_hba->dev; |
eb1c2b72 LJ |
3082 | int p, i, c, d; |
3083 | size_t sz; | |
ef63464b LJ |
3084 | |
3085 | hisi_hba->debugfs_dir = debugfs_create_dir(dev_name(dev), | |
3086 | hisi_sas_debugfs_dir); | |
7c5e1363 LJ |
3087 | debugfs_create_file("trigger_dump", 0600, |
3088 | hisi_hba->debugfs_dir, | |
3089 | hisi_hba, | |
3090 | &hisi_sas_debugfs_trigger_dump_fops); | |
eb1c2b72 | 3091 | |
eb1c2b72 LJ |
3092 | /* Alloc buffer for global */ |
3093 | sz = hisi_hba->hw->debugfs_reg_global->count * 4; | |
3094 | hisi_hba->debugfs_global_reg = | |
3095 | devm_kmalloc(dev, sz, GFP_KERNEL); | |
3096 | ||
3097 | if (!hisi_hba->debugfs_global_reg) | |
3098 | goto fail_global; | |
3099 | ||
3100 | /* Alloc buffer for port */ | |
3101 | sz = hisi_hba->hw->debugfs_reg_port->count * 4; | |
3102 | for (p = 0; p < hisi_hba->n_phy; p++) { | |
3103 | hisi_hba->debugfs_port_reg[p] = | |
3104 | devm_kmalloc(dev, sz, GFP_KERNEL); | |
3105 | ||
3106 | if (!hisi_hba->debugfs_port_reg[p]) | |
3107 | goto fail_port; | |
3108 | } | |
3109 | ||
3110 | /* Alloc buffer for cq */ | |
3111 | sz = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
3112 | for (c = 0; c < hisi_hba->queue_count; c++) { | |
3113 | hisi_hba->debugfs_complete_hdr[c] = | |
3114 | devm_kmalloc(dev, sz, GFP_KERNEL); | |
3115 | ||
3116 | if (!hisi_hba->debugfs_complete_hdr[c]) | |
3117 | goto fail_cq; | |
3118 | } | |
3119 | ||
3120 | /* Alloc buffer for dq */ | |
d1548e9c | 3121 | sz = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; |
eb1c2b72 LJ |
3122 | for (d = 0; d < hisi_hba->queue_count; d++) { |
3123 | hisi_hba->debugfs_cmd_hdr[d] = | |
3124 | devm_kmalloc(dev, sz, GFP_KERNEL); | |
3125 | ||
3126 | if (!hisi_hba->debugfs_cmd_hdr[d]) | |
3127 | goto fail_iost_dq; | |
3128 | } | |
3129 | ||
3130 | /* Alloc buffer for iost */ | |
3131 | sz = max_command_entries * sizeof(struct hisi_sas_iost); | |
3132 | ||
3133 | hisi_hba->debugfs_iost = devm_kmalloc(dev, sz, GFP_KERNEL); | |
3134 | if (!hisi_hba->debugfs_iost) | |
3135 | goto fail_iost_dq; | |
3136 | ||
3137 | /* Alloc buffer for itct */ | |
3138 | /* New memory allocation must be locate before itct */ | |
3139 | sz = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
3140 | ||
3141 | hisi_hba->debugfs_itct = devm_kmalloc(dev, sz, GFP_KERNEL); | |
3142 | if (!hisi_hba->debugfs_itct) | |
3143 | goto fail_itct; | |
3144 | ||
3145 | return; | |
3146 | fail_itct: | |
3147 | devm_kfree(dev, hisi_hba->debugfs_iost); | |
3148 | fail_iost_dq: | |
3149 | for (i = 0; i < d; i++) | |
3150 | devm_kfree(dev, hisi_hba->debugfs_cmd_hdr[i]); | |
3151 | fail_cq: | |
3152 | for (i = 0; i < c; i++) | |
3153 | devm_kfree(dev, hisi_hba->debugfs_complete_hdr[i]); | |
3154 | fail_port: | |
3155 | for (i = 0; i < p; i++) | |
3156 | devm_kfree(dev, hisi_hba->debugfs_port_reg[i]); | |
3157 | devm_kfree(dev, hisi_hba->debugfs_global_reg); | |
3158 | fail_global: | |
3159 | debugfs_remove_recursive(hisi_hba->debugfs_dir); | |
3160 | dev_dbg(dev, "failed to init debugfs!\n"); | |
ef63464b LJ |
3161 | } |
3162 | EXPORT_SYMBOL_GPL(hisi_sas_debugfs_init); | |
3163 | ||
3164 | void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba) | |
3165 | { | |
3166 | debugfs_remove_recursive(hisi_hba->debugfs_dir); | |
3167 | } | |
3168 | EXPORT_SYMBOL_GPL(hisi_sas_debugfs_exit); | |
3169 | ||
89d53322 JG |
3170 | int hisi_sas_remove(struct platform_device *pdev) |
3171 | { | |
3172 | struct sas_ha_struct *sha = platform_get_drvdata(pdev); | |
3173 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
d37a0082 | 3174 | struct Scsi_Host *shost = sha->core.shost; |
89d53322 | 3175 | |
5df41af4 XC |
3176 | if (timer_pending(&hisi_hba->timer)) |
3177 | del_timer(&hisi_hba->timer); | |
3178 | ||
89d53322 JG |
3179 | sas_unregister_ha(sha); |
3180 | sas_remove_host(sha->core.shost); | |
3181 | ||
3182 | hisi_sas_free(hisi_hba); | |
76aae5f6 | 3183 | scsi_host_put(shost); |
89d53322 JG |
3184 | return 0; |
3185 | } | |
3186 | EXPORT_SYMBOL_GPL(hisi_sas_remove); | |
3187 | ||
ef63464b LJ |
3188 | bool hisi_sas_debugfs_enable; |
3189 | EXPORT_SYMBOL_GPL(hisi_sas_debugfs_enable); | |
3190 | module_param_named(debugfs_enable, hisi_sas_debugfs_enable, bool, 0444); | |
3191 | MODULE_PARM_DESC(hisi_sas_debugfs_enable, "Enable driver debugfs (default disabled)"); | |
3192 | ||
e8899fad JG |
3193 | static __init int hisi_sas_init(void) |
3194 | { | |
e8899fad JG |
3195 | hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); |
3196 | if (!hisi_sas_stt) | |
3197 | return -ENOMEM; | |
3198 | ||
ef63464b LJ |
3199 | if (hisi_sas_debugfs_enable) |
3200 | hisi_sas_debugfs_dir = debugfs_create_dir("hisi_sas", NULL); | |
3201 | ||
e8899fad JG |
3202 | return 0; |
3203 | } | |
3204 | ||
3205 | static __exit void hisi_sas_exit(void) | |
3206 | { | |
3207 | sas_release_transport(hisi_sas_stt); | |
ef63464b LJ |
3208 | |
3209 | debugfs_remove(hisi_sas_debugfs_dir); | |
e8899fad JG |
3210 | } |
3211 | ||
3212 | module_init(hisi_sas_init); | |
3213 | module_exit(hisi_sas_exit); | |
3214 | ||
e8899fad JG |
3215 | MODULE_LICENSE("GPL"); |
3216 | MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); | |
3217 | MODULE_DESCRIPTION("HISILICON SAS controller driver"); | |
3218 | MODULE_ALIAS("platform:" DRV_NAME); |