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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); | |
cac9b2a2 | 27 | |
468f4b8d | 28 | u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction) |
6c7bb8a1 | 29 | { |
468f4b8d | 30 | switch (fis->command) { |
6c7bb8a1 XC |
31 | case ATA_CMD_FPDMA_WRITE: |
32 | case ATA_CMD_FPDMA_READ: | |
33 | case ATA_CMD_FPDMA_RECV: | |
34 | case ATA_CMD_FPDMA_SEND: | |
35 | case ATA_CMD_NCQ_NON_DATA: | |
edafeef4 | 36 | return HISI_SAS_SATA_PROTOCOL_FPDMA; |
6c7bb8a1 XC |
37 | |
38 | case ATA_CMD_DOWNLOAD_MICRO: | |
39 | case ATA_CMD_ID_ATA: | |
40 | case ATA_CMD_PMP_READ: | |
41 | case ATA_CMD_READ_LOG_EXT: | |
42 | case ATA_CMD_PIO_READ: | |
43 | case ATA_CMD_PIO_READ_EXT: | |
44 | case ATA_CMD_PMP_WRITE: | |
45 | case ATA_CMD_WRITE_LOG_EXT: | |
46 | case ATA_CMD_PIO_WRITE: | |
47 | case ATA_CMD_PIO_WRITE_EXT: | |
edafeef4 | 48 | return HISI_SAS_SATA_PROTOCOL_PIO; |
6c7bb8a1 XC |
49 | |
50 | case ATA_CMD_DSM: | |
51 | case ATA_CMD_DOWNLOAD_MICRO_DMA: | |
52 | case ATA_CMD_PMP_READ_DMA: | |
53 | case ATA_CMD_PMP_WRITE_DMA: | |
54 | case ATA_CMD_READ: | |
55 | case ATA_CMD_READ_EXT: | |
56 | case ATA_CMD_READ_LOG_DMA_EXT: | |
57 | case ATA_CMD_READ_STREAM_DMA_EXT: | |
58 | case ATA_CMD_TRUSTED_RCV_DMA: | |
59 | case ATA_CMD_TRUSTED_SND_DMA: | |
60 | case ATA_CMD_WRITE: | |
61 | case ATA_CMD_WRITE_EXT: | |
62 | case ATA_CMD_WRITE_FUA_EXT: | |
63 | case ATA_CMD_WRITE_QUEUED: | |
64 | case ATA_CMD_WRITE_LOG_DMA_EXT: | |
65 | case ATA_CMD_WRITE_STREAM_DMA_EXT: | |
c3fe8a2b | 66 | case ATA_CMD_ZAC_MGMT_IN: |
edafeef4 | 67 | return HISI_SAS_SATA_PROTOCOL_DMA; |
6c7bb8a1 XC |
68 | |
69 | case ATA_CMD_CHK_POWER: | |
70 | case ATA_CMD_DEV_RESET: | |
71 | case ATA_CMD_EDD: | |
72 | case ATA_CMD_FLUSH: | |
73 | case ATA_CMD_FLUSH_EXT: | |
74 | case ATA_CMD_VERIFY: | |
75 | case ATA_CMD_VERIFY_EXT: | |
76 | case ATA_CMD_SET_FEATURES: | |
77 | case ATA_CMD_STANDBY: | |
78 | case ATA_CMD_STANDBYNOW1: | |
c3fe8a2b | 79 | case ATA_CMD_ZAC_MGMT_OUT: |
edafeef4 | 80 | return HISI_SAS_SATA_PROTOCOL_NONDATA; |
468f4b8d | 81 | |
3ff0f0b6 XT |
82 | case ATA_CMD_SET_MAX: |
83 | switch (fis->features) { | |
84 | case ATA_SET_MAX_PASSWD: | |
85 | case ATA_SET_MAX_LOCK: | |
86 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
468f4b8d | 87 | |
3ff0f0b6 XT |
88 | case ATA_SET_MAX_PASSWD_DMA: |
89 | case ATA_SET_MAX_UNLOCK_DMA: | |
90 | return HISI_SAS_SATA_PROTOCOL_DMA; | |
91 | ||
92 | default: | |
93 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
468f4b8d | 94 | } |
3ff0f0b6 XT |
95 | |
96 | default: | |
97 | { | |
6c7bb8a1 XC |
98 | if (direction == DMA_NONE) |
99 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
100 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
101 | } | |
468f4b8d | 102 | } |
6c7bb8a1 XC |
103 | } |
104 | EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol); | |
105 | ||
75904077 XC |
106 | void hisi_sas_sata_done(struct sas_task *task, |
107 | struct hisi_sas_slot *slot) | |
108 | { | |
109 | struct task_status_struct *ts = &task->task_status; | |
110 | struct ata_task_resp *resp = (struct ata_task_resp *)ts->buf; | |
f557e32c XT |
111 | struct hisi_sas_status_buffer *status_buf = |
112 | hisi_sas_status_buf_addr_mem(slot); | |
113 | u8 *iu = &status_buf->iu[0]; | |
114 | struct dev_to_host_fis *d2h = (struct dev_to_host_fis *)iu; | |
75904077 XC |
115 | |
116 | resp->frame_len = sizeof(struct dev_to_host_fis); | |
117 | memcpy(&resp->ending_fis[0], d2h, sizeof(struct dev_to_host_fis)); | |
118 | ||
119 | ts->buf_valid_size = sizeof(*resp); | |
120 | } | |
121 | EXPORT_SYMBOL_GPL(hisi_sas_sata_done); | |
122 | ||
318913c6 XC |
123 | int hisi_sas_get_ncq_tag(struct sas_task *task, u32 *tag) |
124 | { | |
125 | struct ata_queued_cmd *qc = task->uldd_task; | |
126 | ||
127 | if (qc) { | |
128 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || | |
129 | qc->tf.command == ATA_CMD_FPDMA_READ) { | |
130 | *tag = qc->tag; | |
131 | return 1; | |
132 | } | |
133 | } | |
134 | return 0; | |
135 | } | |
136 | EXPORT_SYMBOL_GPL(hisi_sas_get_ncq_tag); | |
137 | ||
42e7a693 JG |
138 | static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device) |
139 | { | |
140 | return device->port->ha->lldd_ha; | |
141 | } | |
142 | ||
2e244f0f JG |
143 | struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port) |
144 | { | |
145 | return container_of(sas_port, struct hisi_sas_port, sas_port); | |
146 | } | |
147 | EXPORT_SYMBOL_GPL(to_hisi_sas_port); | |
148 | ||
a25d0d3d XC |
149 | void hisi_sas_stop_phys(struct hisi_hba *hisi_hba) |
150 | { | |
151 | int phy_no; | |
152 | ||
153 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) | |
154 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
155 | } | |
156 | EXPORT_SYMBOL_GPL(hisi_sas_stop_phys); | |
157 | ||
257efd1f JG |
158 | static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) |
159 | { | |
160 | void *bitmap = hisi_hba->slot_index_tags; | |
161 | ||
162 | clear_bit(slot_idx, bitmap); | |
163 | } | |
164 | ||
42e7a693 JG |
165 | static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx) |
166 | { | |
167 | hisi_sas_slot_index_clear(hisi_hba, slot_idx); | |
168 | } | |
169 | ||
170 | static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx) | |
171 | { | |
172 | void *bitmap = hisi_hba->slot_index_tags; | |
173 | ||
174 | set_bit(slot_idx, bitmap); | |
175 | } | |
176 | ||
177 | static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, int *slot_idx) | |
178 | { | |
179 | unsigned int index; | |
180 | void *bitmap = hisi_hba->slot_index_tags; | |
181 | ||
182 | index = find_first_zero_bit(bitmap, hisi_hba->slot_index_count); | |
183 | if (index >= hisi_hba->slot_index_count) | |
184 | return -SAS_QUEUE_FULL; | |
185 | hisi_sas_slot_index_set(hisi_hba, index); | |
186 | *slot_idx = index; | |
187 | return 0; | |
188 | } | |
189 | ||
257efd1f JG |
190 | static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) |
191 | { | |
192 | int i; | |
193 | ||
194 | for (i = 0; i < hisi_hba->slot_index_count; ++i) | |
195 | hisi_sas_slot_index_clear(hisi_hba, i); | |
196 | } | |
27a3f229 JG |
197 | |
198 | void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, | |
199 | struct hisi_sas_slot *slot) | |
200 | { | |
27a3f229 | 201 | |
d3c4dd4e | 202 | if (task) { |
11b75249 | 203 | struct device *dev = hisi_hba->dev; |
27a3f229 | 204 | |
6ba0fbc3 XT |
205 | if (!task->lldd_task) |
206 | return; | |
207 | ||
208 | task->lldd_task = NULL; | |
209 | ||
d3c4dd4e JG |
210 | if (!sas_protocol_ata(task->task_proto)) |
211 | if (slot->n_elem) | |
dc1e4730 XC |
212 | dma_unmap_sg(dev, task->scatter, |
213 | task->num_scatter, | |
d3c4dd4e | 214 | task->data_dir); |
d3c4dd4e | 215 | } |
27a3f229 | 216 | |
f557e32c XT |
217 | if (slot->buf) |
218 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, slot->buf_dma); | |
27a3f229 | 219 | |
27a3f229 | 220 | list_del_init(&slot->entry); |
6ba0fbc3 | 221 | slot->buf = NULL; |
27a3f229 JG |
222 | slot->task = NULL; |
223 | slot->port = NULL; | |
224 | hisi_sas_slot_index_free(hisi_hba, slot->idx); | |
d3c4dd4e | 225 | |
59ba49f9 | 226 | /* slot memory is fully zeroed when it is reused */ |
27a3f229 JG |
227 | } |
228 | EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free); | |
229 | ||
66ee999b JG |
230 | static int hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba, |
231 | struct hisi_sas_slot *slot) | |
232 | { | |
233 | return hisi_hba->hw->prep_smp(hisi_hba, slot); | |
234 | } | |
235 | ||
42e7a693 JG |
236 | static int hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba, |
237 | struct hisi_sas_slot *slot, int is_tmf, | |
238 | struct hisi_sas_tmf_task *tmf) | |
239 | { | |
240 | return hisi_hba->hw->prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
241 | } | |
242 | ||
6f2ff1a1 JG |
243 | static int hisi_sas_task_prep_ata(struct hisi_hba *hisi_hba, |
244 | struct hisi_sas_slot *slot) | |
245 | { | |
246 | return hisi_hba->hw->prep_stp(hisi_hba, slot); | |
247 | } | |
248 | ||
441c2740 JG |
249 | static int hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba, |
250 | struct hisi_sas_slot *slot, | |
251 | int device_id, int abort_flag, int tag_to_abort) | |
252 | { | |
253 | return hisi_hba->hw->prep_abort(hisi_hba, slot, | |
254 | device_id, abort_flag, tag_to_abort); | |
255 | } | |
256 | ||
cac9b2a2 JG |
257 | /* |
258 | * This function will issue an abort TMF regardless of whether the | |
259 | * task is in the sdev or not. Then it will do the task complete | |
260 | * cleanup and callbacks. | |
261 | */ | |
262 | static void hisi_sas_slot_abort(struct work_struct *work) | |
263 | { | |
264 | struct hisi_sas_slot *abort_slot = | |
265 | container_of(work, struct hisi_sas_slot, abort_slot); | |
266 | struct sas_task *task = abort_slot->task; | |
267 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
268 | struct scsi_cmnd *cmnd = task->uldd_task; | |
269 | struct hisi_sas_tmf_task tmf_task; | |
cac9b2a2 | 270 | struct scsi_lun lun; |
11b75249 | 271 | struct device *dev = hisi_hba->dev; |
cac9b2a2 | 272 | int tag = abort_slot->idx; |
da7b66e7 | 273 | unsigned long flags; |
cac9b2a2 JG |
274 | |
275 | if (!(task->task_proto & SAS_PROTOCOL_SSP)) { | |
276 | dev_err(dev, "cannot abort slot for non-ssp task\n"); | |
277 | goto out; | |
278 | } | |
279 | ||
280 | int_to_scsilun(cmnd->device->lun, &lun); | |
281 | tmf_task.tmf = TMF_ABORT_TASK; | |
282 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
283 | ||
284 | hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, &tmf_task); | |
285 | out: | |
286 | /* Do cleanup for this task */ | |
da7b66e7 | 287 | spin_lock_irqsave(&hisi_hba->lock, flags); |
cac9b2a2 | 288 | hisi_sas_slot_task_free(hisi_hba, task, abort_slot); |
da7b66e7 | 289 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
cac9b2a2 JG |
290 | if (task->task_done) |
291 | task->task_done(task); | |
cac9b2a2 JG |
292 | } |
293 | ||
b1a49412 XC |
294 | static int hisi_sas_task_prep(struct sas_task *task, struct hisi_sas_dq |
295 | *dq, int is_tmf, struct hisi_sas_tmf_task *tmf, | |
296 | int *pass) | |
42e7a693 | 297 | { |
b1a49412 | 298 | struct hisi_hba *hisi_hba = dq->hisi_hba; |
42e7a693 JG |
299 | struct domain_device *device = task->dev; |
300 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
301 | struct hisi_sas_port *port; | |
302 | struct hisi_sas_slot *slot; | |
303 | struct hisi_sas_cmd_hdr *cmd_hdr_base; | |
2e244f0f | 304 | struct asd_sas_port *sas_port = device->port; |
11b75249 | 305 | struct device *dev = hisi_hba->dev; |
42e7a693 | 306 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
54c9dd2d | 307 | unsigned long flags; |
42e7a693 | 308 | |
2e244f0f | 309 | if (!sas_port) { |
42e7a693 JG |
310 | struct task_status_struct *ts = &task->task_status; |
311 | ||
312 | ts->resp = SAS_TASK_UNDELIVERED; | |
313 | ts->stat = SAS_PHY_DOWN; | |
314 | /* | |
315 | * libsas will use dev->port, should | |
316 | * not call task_done for sata | |
317 | */ | |
318 | if (device->dev_type != SAS_SATA_DEV) | |
319 | task->task_done(task); | |
6bf6db51 | 320 | return -ECOMM; |
42e7a693 JG |
321 | } |
322 | ||
323 | if (DEV_IS_GONE(sas_dev)) { | |
324 | if (sas_dev) | |
ad604832 | 325 | dev_info(dev, "task prep: device %d not ready\n", |
42e7a693 JG |
326 | sas_dev->device_id); |
327 | else | |
328 | dev_info(dev, "task prep: device %016llx not ready\n", | |
329 | SAS_ADDR(device->sas_addr)); | |
330 | ||
6bf6db51 | 331 | return -ECOMM; |
42e7a693 | 332 | } |
2e244f0f JG |
333 | |
334 | port = to_hisi_sas_port(sas_port); | |
9859f24e | 335 | if (port && !port->port_attached) { |
09fe9ecb | 336 | dev_info(dev, "task prep: %s port%d not attach device\n", |
6073b771 | 337 | (dev_is_sata(device)) ? |
09fe9ecb JG |
338 | "SATA/STP" : "SAS", |
339 | device->port->id); | |
340 | ||
6bf6db51 | 341 | return -ECOMM; |
42e7a693 JG |
342 | } |
343 | ||
344 | if (!sas_protocol_ata(task->task_proto)) { | |
345 | if (task->num_scatter) { | |
346 | n_elem = dma_map_sg(dev, task->scatter, | |
347 | task->num_scatter, task->data_dir); | |
348 | if (!n_elem) { | |
349 | rc = -ENOMEM; | |
350 | goto prep_out; | |
351 | } | |
352 | } | |
353 | } else | |
354 | n_elem = task->num_scatter; | |
355 | ||
b1a49412 | 356 | spin_lock_irqsave(&hisi_hba->lock, flags); |
685b6d6e JG |
357 | if (hisi_hba->hw->slot_index_alloc) |
358 | rc = hisi_hba->hw->slot_index_alloc(hisi_hba, &slot_idx, | |
359 | device); | |
360 | else | |
361 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); | |
b1a49412 XC |
362 | if (rc) { |
363 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
42e7a693 | 364 | goto err_out; |
b1a49412 XC |
365 | } |
366 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
367 | ||
368 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
42e7a693 JG |
369 | if (rc) |
370 | goto err_out_tag; | |
371 | ||
b1a49412 XC |
372 | dlvry_queue = dq->id; |
373 | dlvry_queue_slot = dq->wr_point; | |
42e7a693 JG |
374 | slot = &hisi_hba->slot_info[slot_idx]; |
375 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
376 | ||
377 | slot->idx = slot_idx; | |
378 | slot->n_elem = n_elem; | |
379 | slot->dlvry_queue = dlvry_queue; | |
380 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
381 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
382 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
383 | slot->task = task; | |
384 | slot->port = port; | |
385 | task->lldd_task = slot; | |
cac9b2a2 | 386 | INIT_WORK(&slot->abort_slot, hisi_sas_slot_abort); |
42e7a693 | 387 | |
f557e32c XT |
388 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
389 | GFP_ATOMIC, &slot->buf_dma); | |
390 | if (!slot->buf) { | |
9c9d18e7 | 391 | rc = -ENOMEM; |
42e7a693 | 392 | goto err_out_slot_buf; |
9c9d18e7 | 393 | } |
42e7a693 | 394 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
f557e32c XT |
395 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
396 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
42e7a693 JG |
397 | |
398 | switch (task->task_proto) { | |
66ee999b JG |
399 | case SAS_PROTOCOL_SMP: |
400 | rc = hisi_sas_task_prep_smp(hisi_hba, slot); | |
401 | break; | |
42e7a693 JG |
402 | case SAS_PROTOCOL_SSP: |
403 | rc = hisi_sas_task_prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
404 | break; | |
405 | case SAS_PROTOCOL_SATA: | |
406 | case SAS_PROTOCOL_STP: | |
407 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
6f2ff1a1 JG |
408 | rc = hisi_sas_task_prep_ata(hisi_hba, slot); |
409 | break; | |
42e7a693 JG |
410 | default: |
411 | dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n", | |
412 | task->task_proto); | |
413 | rc = -EINVAL; | |
414 | break; | |
415 | } | |
416 | ||
417 | if (rc) { | |
418 | dev_err(dev, "task prep: rc = 0x%x\n", rc); | |
f557e32c | 419 | goto err_out_buf; |
42e7a693 JG |
420 | } |
421 | ||
9feaf909 | 422 | spin_lock_irqsave(&hisi_hba->lock, flags); |
405314df | 423 | list_add_tail(&slot->entry, &sas_dev->list); |
9feaf909 | 424 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
54c9dd2d | 425 | spin_lock_irqsave(&task->task_state_lock, flags); |
42e7a693 | 426 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 427 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
42e7a693 | 428 | |
b1a49412 | 429 | dq->slot_prep = slot; |
42e7a693 JG |
430 | ++(*pass); |
431 | ||
9c9d18e7 | 432 | return 0; |
42e7a693 | 433 | |
f557e32c XT |
434 | err_out_buf: |
435 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
436 | slot->buf_dma); | |
42e7a693 JG |
437 | err_out_slot_buf: |
438 | /* Nothing to be done */ | |
439 | err_out_tag: | |
b1a49412 | 440 | spin_lock_irqsave(&hisi_hba->lock, flags); |
42e7a693 | 441 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 | 442 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
42e7a693 JG |
443 | err_out: |
444 | dev_err(dev, "task prep: failed[%d]!\n", rc); | |
445 | if (!sas_protocol_ata(task->task_proto)) | |
446 | if (n_elem) | |
dc1e4730 XC |
447 | dma_unmap_sg(dev, task->scatter, |
448 | task->num_scatter, | |
42e7a693 JG |
449 | task->data_dir); |
450 | prep_out: | |
451 | return rc; | |
452 | } | |
453 | ||
454 | static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, | |
455 | int is_tmf, struct hisi_sas_tmf_task *tmf) | |
456 | { | |
457 | u32 rc; | |
458 | u32 pass = 0; | |
459 | unsigned long flags; | |
460 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
11b75249 | 461 | struct device *dev = hisi_hba->dev; |
b1a49412 XC |
462 | struct domain_device *device = task->dev; |
463 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
464 | struct hisi_sas_dq *dq = sas_dev->dq; | |
42e7a693 | 465 | |
917d3bda | 466 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
467 | return -EINVAL; |
468 | ||
42e7a693 | 469 | /* protect task_prep and start_delivery sequence */ |
b1a49412 XC |
470 | spin_lock_irqsave(&dq->lock, flags); |
471 | rc = hisi_sas_task_prep(task, dq, is_tmf, tmf, &pass); | |
42e7a693 JG |
472 | if (rc) |
473 | dev_err(dev, "task exec: failed[%d]!\n", rc); | |
474 | ||
475 | if (likely(pass)) | |
b1a49412 XC |
476 | hisi_hba->hw->start_delivery(dq); |
477 | spin_unlock_irqrestore(&dq->lock, flags); | |
42e7a693 JG |
478 | |
479 | return rc; | |
480 | } | |
257efd1f | 481 | |
66139921 JG |
482 | static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no) |
483 | { | |
484 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
485 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
486 | struct sas_ha_struct *sas_ha; | |
487 | ||
488 | if (!phy->phy_attached) | |
489 | return; | |
490 | ||
491 | sas_ha = &hisi_hba->sha; | |
492 | sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); | |
493 | ||
494 | if (sas_phy->phy) { | |
495 | struct sas_phy *sphy = sas_phy->phy; | |
496 | ||
497 | sphy->negotiated_linkrate = sas_phy->linkrate; | |
66139921 | 498 | sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; |
2ae75787 XC |
499 | sphy->maximum_linkrate_hw = |
500 | hisi_hba->hw->phy_get_max_linkrate(); | |
501 | if (sphy->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
502 | sphy->minimum_linkrate = phy->minimum_linkrate; | |
503 | ||
504 | if (sphy->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
505 | sphy->maximum_linkrate = phy->maximum_linkrate; | |
66139921 JG |
506 | } |
507 | ||
508 | if (phy->phy_type & PORT_TYPE_SAS) { | |
509 | struct sas_identify_frame *id; | |
510 | ||
511 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
512 | id->dev_type = phy->identify.device_type; | |
513 | id->initiator_bits = SAS_PROTOCOL_ALL; | |
514 | id->target_bits = phy->identify.target_port_protocols; | |
515 | } else if (phy->phy_type & PORT_TYPE_SATA) { | |
516 | /*Nothing*/ | |
517 | } | |
518 | ||
519 | sas_phy->frame_rcvd_size = phy->frame_rcvd_size; | |
520 | sas_ha->notify_port_event(sas_phy, PORTE_BYTES_DMAED); | |
521 | } | |
522 | ||
abda97c2 JG |
523 | static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) |
524 | { | |
525 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
526 | struct hisi_sas_device *sas_dev = NULL; | |
302e0901 | 527 | unsigned long flags; |
abda97c2 JG |
528 | int i; |
529 | ||
302e0901 | 530 | spin_lock_irqsave(&hisi_hba->lock, flags); |
abda97c2 JG |
531 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
532 | if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) { | |
b1a49412 XC |
533 | int queue = i % hisi_hba->queue_count; |
534 | struct hisi_sas_dq *dq = &hisi_hba->dq[queue]; | |
535 | ||
abda97c2 JG |
536 | hisi_hba->devices[i].device_id = i; |
537 | sas_dev = &hisi_hba->devices[i]; | |
538 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
539 | sas_dev->dev_type = device->dev_type; | |
540 | sas_dev->hisi_hba = hisi_hba; | |
541 | sas_dev->sas_device = device; | |
b1a49412 | 542 | sas_dev->dq = dq; |
405314df | 543 | INIT_LIST_HEAD(&hisi_hba->devices[i].list); |
abda97c2 JG |
544 | break; |
545 | } | |
546 | } | |
302e0901 | 547 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
abda97c2 JG |
548 | |
549 | return sas_dev; | |
550 | } | |
551 | ||
552 | static int hisi_sas_dev_found(struct domain_device *device) | |
553 | { | |
554 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
555 | struct domain_device *parent_dev = device->parent; | |
556 | struct hisi_sas_device *sas_dev; | |
11b75249 | 557 | struct device *dev = hisi_hba->dev; |
abda97c2 | 558 | |
685b6d6e JG |
559 | if (hisi_hba->hw->alloc_dev) |
560 | sas_dev = hisi_hba->hw->alloc_dev(device); | |
561 | else | |
562 | sas_dev = hisi_sas_alloc_dev(device); | |
abda97c2 JG |
563 | if (!sas_dev) { |
564 | dev_err(dev, "fail alloc dev: max support %d devices\n", | |
565 | HISI_SAS_MAX_DEVICES); | |
566 | return -EINVAL; | |
567 | } | |
568 | ||
569 | device->lldd_dev = sas_dev; | |
570 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); | |
571 | ||
572 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { | |
573 | int phy_no; | |
574 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
575 | struct ex_phy *phy; | |
576 | ||
577 | for (phy_no = 0; phy_no < phy_num; phy_no++) { | |
578 | phy = &parent_dev->ex_dev.ex_phy[phy_no]; | |
579 | if (SAS_ADDR(phy->attached_sas_addr) == | |
580 | SAS_ADDR(device->sas_addr)) { | |
581 | sas_dev->attached_phy = phy_no; | |
582 | break; | |
583 | } | |
584 | } | |
585 | ||
586 | if (phy_no == phy_num) { | |
587 | dev_info(dev, "dev found: no attached " | |
588 | "dev:%016llx at ex:%016llx\n", | |
589 | SAS_ADDR(device->sas_addr), | |
590 | SAS_ADDR(parent_dev->sas_addr)); | |
591 | return -EINVAL; | |
592 | } | |
593 | } | |
594 | ||
f1c88211 XC |
595 | dev_info(dev, "dev[%d:%x] found\n", |
596 | sas_dev->device_id, sas_dev->dev_type); | |
597 | ||
abda97c2 JG |
598 | return 0; |
599 | } | |
600 | ||
31eec8a6 JG |
601 | static int hisi_sas_slave_configure(struct scsi_device *sdev) |
602 | { | |
603 | struct domain_device *dev = sdev_to_domain_dev(sdev); | |
604 | int ret = sas_slave_configure(sdev); | |
605 | ||
606 | if (ret) | |
607 | return ret; | |
608 | if (!dev_is_sata(dev)) | |
609 | sas_change_queue_depth(sdev, 64); | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
701f75ec JG |
614 | static void hisi_sas_scan_start(struct Scsi_Host *shost) |
615 | { | |
616 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
701f75ec | 617 | |
396b8044 | 618 | hisi_hba->hw->phys_init(hisi_hba); |
701f75ec JG |
619 | } |
620 | ||
621 | static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
622 | { | |
623 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
624 | struct sas_ha_struct *sha = &hisi_hba->sha; | |
625 | ||
396b8044 JG |
626 | /* Wait for PHY up interrupt to occur */ |
627 | if (time < HZ) | |
701f75ec JG |
628 | return 0; |
629 | ||
630 | sas_drain_work(sha); | |
631 | return 1; | |
632 | } | |
633 | ||
66139921 JG |
634 | static void hisi_sas_phyup_work(struct work_struct *work) |
635 | { | |
636 | struct hisi_sas_phy *phy = | |
e537b62b | 637 | container_of(work, typeof(*phy), works[HISI_PHYE_PHY_UP]); |
66139921 JG |
638 | struct hisi_hba *hisi_hba = phy->hisi_hba; |
639 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
640 | int phy_no = sas_phy->id; | |
641 | ||
642 | hisi_hba->hw->sl_notify(hisi_hba, phy_no); /* This requires a sleep */ | |
643 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
644 | } | |
976867e6 | 645 | |
057c3d1f XT |
646 | static void hisi_sas_linkreset_work(struct work_struct *work) |
647 | { | |
648 | struct hisi_sas_phy *phy = | |
649 | container_of(work, typeof(*phy), works[HISI_PHYE_LINK_RESET]); | |
650 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
651 | ||
652 | hisi_sas_control_phy(sas_phy, PHY_FUNC_LINK_RESET, NULL); | |
653 | } | |
654 | ||
e537b62b XT |
655 | static const work_func_t hisi_sas_phye_fns[HISI_PHYES_NUM] = { |
656 | [HISI_PHYE_PHY_UP] = hisi_sas_phyup_work, | |
057c3d1f | 657 | [HISI_PHYE_LINK_RESET] = hisi_sas_linkreset_work, |
e537b62b XT |
658 | }; |
659 | ||
660 | bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy, | |
661 | enum hisi_sas_phy_event event) | |
662 | { | |
663 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
664 | ||
665 | if (WARN_ON(event >= HISI_PHYES_NUM)) | |
666 | return false; | |
667 | ||
668 | return queue_work(hisi_hba->wq, &phy->works[event]); | |
669 | } | |
670 | EXPORT_SYMBOL_GPL(hisi_sas_notify_phy_event); | |
671 | ||
976867e6 JG |
672 | static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no) |
673 | { | |
674 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
675 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
e537b62b | 676 | int i; |
976867e6 JG |
677 | |
678 | phy->hisi_hba = hisi_hba; | |
679 | phy->port = NULL; | |
eba8c20c XT |
680 | phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; |
681 | phy->maximum_linkrate = hisi_hba->hw->phy_get_max_linkrate(); | |
976867e6 JG |
682 | sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0; |
683 | sas_phy->class = SAS; | |
684 | sas_phy->iproto = SAS_PROTOCOL_ALL; | |
685 | sas_phy->tproto = 0; | |
686 | sas_phy->type = PHY_TYPE_PHYSICAL; | |
687 | sas_phy->role = PHY_ROLE_INITIATOR; | |
688 | sas_phy->oob_mode = OOB_NOT_CONNECTED; | |
689 | sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; | |
690 | sas_phy->id = phy_no; | |
691 | sas_phy->sas_addr = &hisi_hba->sas_addr[0]; | |
692 | sas_phy->frame_rcvd = &phy->frame_rcvd[0]; | |
693 | sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata; | |
694 | sas_phy->lldd_phy = phy; | |
66139921 | 695 | |
e537b62b XT |
696 | for (i = 0; i < HISI_PHYES_NUM; i++) |
697 | INIT_WORK(&phy->works[i], hisi_sas_phye_fns[i]); | |
976867e6 JG |
698 | } |
699 | ||
184a4635 JG |
700 | static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy) |
701 | { | |
702 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
703 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
704 | struct hisi_sas_phy *phy = sas_phy->lldd_phy; | |
705 | struct asd_sas_port *sas_port = sas_phy->port; | |
2e244f0f | 706 | struct hisi_sas_port *port = to_hisi_sas_port(sas_port); |
184a4635 JG |
707 | unsigned long flags; |
708 | ||
709 | if (!sas_port) | |
710 | return; | |
711 | ||
712 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
713 | port->port_attached = 1; | |
714 | port->id = phy->port_id; | |
715 | phy->port = port; | |
716 | sas_port->lldd_port = port; | |
717 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
718 | } | |
719 | ||
d3c4dd4e | 720 | static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, struct sas_task *task, |
405314df | 721 | struct hisi_sas_slot *slot) |
184a4635 | 722 | { |
d3c4dd4e JG |
723 | if (task) { |
724 | unsigned long flags; | |
725 | struct task_status_struct *ts; | |
184a4635 | 726 | |
d3c4dd4e | 727 | ts = &task->task_status; |
184a4635 | 728 | |
d3c4dd4e JG |
729 | ts->resp = SAS_TASK_COMPLETE; |
730 | ts->stat = SAS_ABORTED_TASK; | |
731 | spin_lock_irqsave(&task->task_state_lock, flags); | |
732 | task->task_state_flags &= | |
733 | ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); | |
734 | task->task_state_flags |= SAS_TASK_STATE_DONE; | |
735 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
736 | } | |
184a4635 | 737 | |
405314df | 738 | hisi_sas_slot_task_free(hisi_hba, task, slot); |
184a4635 JG |
739 | } |
740 | ||
405314df | 741 | /* hisi_hba.lock should be locked */ |
184a4635 JG |
742 | static void hisi_sas_release_task(struct hisi_hba *hisi_hba, |
743 | struct domain_device *device) | |
744 | { | |
405314df JG |
745 | struct hisi_sas_slot *slot, *slot2; |
746 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
184a4635 | 747 | |
405314df JG |
748 | list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) |
749 | hisi_sas_do_release_task(hisi_hba, slot->task, slot); | |
184a4635 JG |
750 | } |
751 | ||
4d0951ee | 752 | void hisi_sas_release_tasks(struct hisi_hba *hisi_hba) |
06ec0fb9 | 753 | { |
405314df JG |
754 | struct hisi_sas_device *sas_dev; |
755 | struct domain_device *device; | |
06ec0fb9 XC |
756 | int i; |
757 | ||
405314df JG |
758 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
759 | sas_dev = &hisi_hba->devices[i]; | |
760 | device = sas_dev->sas_device; | |
06ec0fb9 | 761 | |
405314df JG |
762 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || |
763 | !device) | |
06ec0fb9 | 764 | continue; |
405314df JG |
765 | |
766 | hisi_sas_release_task(hisi_hba, device); | |
06ec0fb9 XC |
767 | } |
768 | } | |
4d0951ee | 769 | EXPORT_SYMBOL_GPL(hisi_sas_release_tasks); |
06ec0fb9 | 770 | |
d30ff263 XC |
771 | static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba, |
772 | struct domain_device *device) | |
773 | { | |
774 | if (hisi_hba->hw->dereg_device) | |
775 | hisi_hba->hw->dereg_device(hisi_hba, device); | |
776 | } | |
777 | ||
abda97c2 JG |
778 | static void hisi_sas_dev_gone(struct domain_device *device) |
779 | { | |
780 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
781 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 782 | struct device *dev = hisi_hba->dev; |
abda97c2 | 783 | |
f1c88211 | 784 | dev_info(dev, "dev[%d:%x] is gone\n", |
abda97c2 JG |
785 | sas_dev->device_id, sas_dev->dev_type); |
786 | ||
f8e45ec2 XC |
787 | if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) { |
788 | hisi_sas_internal_task_abort(hisi_hba, device, | |
40f2702b JG |
789 | HISI_SAS_INT_ABT_DEV, 0); |
790 | ||
f8e45ec2 XC |
791 | hisi_sas_dereg_device(hisi_hba, device); |
792 | ||
793 | hisi_hba->hw->clear_itct(hisi_hba, sas_dev); | |
794 | device->lldd_dev = NULL; | |
f8e45ec2 | 795 | } |
d30ff263 | 796 | |
0258141a XT |
797 | if (hisi_hba->hw->free_device) |
798 | hisi_hba->hw->free_device(sas_dev); | |
abda97c2 | 799 | sas_dev->dev_type = SAS_PHY_UNUSED; |
abda97c2 | 800 | } |
42e7a693 JG |
801 | |
802 | static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) | |
803 | { | |
804 | return hisi_sas_task_exec(task, gfp_flags, 0, NULL); | |
805 | } | |
806 | ||
e4189d53 JG |
807 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
808 | void *funcdata) | |
809 | { | |
810 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
811 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
812 | int phy_no = sas_phy->id; | |
813 | ||
814 | switch (func) { | |
815 | case PHY_FUNC_HARD_RESET: | |
816 | hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no); | |
817 | break; | |
818 | ||
819 | case PHY_FUNC_LINK_RESET: | |
b4c67a6c JG |
820 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); |
821 | msleep(100); | |
1eb8eeac | 822 | hisi_hba->hw->phy_start(hisi_hba, phy_no); |
e4189d53 JG |
823 | break; |
824 | ||
825 | case PHY_FUNC_DISABLE: | |
826 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
827 | break; | |
828 | ||
829 | case PHY_FUNC_SET_LINK_RATE: | |
2ae75787 XC |
830 | hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, funcdata); |
831 | break; | |
c52108c6 XT |
832 | case PHY_FUNC_GET_EVENTS: |
833 | if (hisi_hba->hw->get_events) { | |
834 | hisi_hba->hw->get_events(hisi_hba, phy_no); | |
835 | break; | |
836 | } | |
837 | /* fallthru */ | |
e4189d53 JG |
838 | case PHY_FUNC_RELEASE_SPINUP_HOLD: |
839 | default: | |
840 | return -EOPNOTSUPP; | |
841 | } | |
842 | return 0; | |
843 | } | |
184a4635 | 844 | |
0efff300 JG |
845 | static void hisi_sas_task_done(struct sas_task *task) |
846 | { | |
847 | if (!del_timer(&task->slow_task->timer)) | |
848 | return; | |
849 | complete(&task->slow_task->completion); | |
850 | } | |
851 | ||
77570eed | 852 | static void hisi_sas_tmf_timedout(struct timer_list *t) |
0efff300 | 853 | { |
77570eed KC |
854 | struct sas_task_slow *slow = from_timer(slow, t, timer); |
855 | struct sas_task *task = slow->task; | |
f64a6988 XC |
856 | unsigned long flags; |
857 | ||
858 | spin_lock_irqsave(&task->task_state_lock, flags); | |
859 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) | |
860 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; | |
861 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
0efff300 | 862 | |
0efff300 JG |
863 | complete(&task->slow_task->completion); |
864 | } | |
865 | ||
866 | #define TASK_TIMEOUT 20 | |
867 | #define TASK_RETRY 3 | |
bb9abc4a | 868 | #define INTERNAL_ABORT_TIMEOUT 6 |
0efff300 JG |
869 | static int hisi_sas_exec_internal_tmf_task(struct domain_device *device, |
870 | void *parameter, u32 para_len, | |
871 | struct hisi_sas_tmf_task *tmf) | |
872 | { | |
873 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
874 | struct hisi_hba *hisi_hba = sas_dev->hisi_hba; | |
11b75249 | 875 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
876 | struct sas_task *task; |
877 | int res, retry; | |
878 | ||
879 | for (retry = 0; retry < TASK_RETRY; retry++) { | |
880 | task = sas_alloc_slow_task(GFP_KERNEL); | |
881 | if (!task) | |
882 | return -ENOMEM; | |
883 | ||
884 | task->dev = device; | |
885 | task->task_proto = device->tproto; | |
886 | ||
7c594f04 XC |
887 | if (dev_is_sata(device)) { |
888 | task->ata_task.device_control_reg_update = 1; | |
889 | memcpy(&task->ata_task.fis, parameter, para_len); | |
890 | } else { | |
891 | memcpy(&task->ssp_task, parameter, para_len); | |
892 | } | |
0efff300 JG |
893 | task->task_done = hisi_sas_task_done; |
894 | ||
841b86f3 | 895 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
0efff300 JG |
896 | task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ; |
897 | add_timer(&task->slow_task->timer); | |
898 | ||
899 | res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf); | |
900 | ||
901 | if (res) { | |
902 | del_timer(&task->slow_task->timer); | |
903 | dev_err(dev, "abort tmf: executing internal task failed: %d\n", | |
904 | res); | |
905 | goto ex_err; | |
906 | } | |
907 | ||
908 | wait_for_completion(&task->slow_task->completion); | |
909 | res = TMF_RESP_FUNC_FAILED; | |
910 | /* Even TMF timed out, return direct. */ | |
911 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
912 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
d3c4dd4e JG |
913 | struct hisi_sas_slot *slot = task->lldd_task; |
914 | ||
f1c88211 | 915 | dev_err(dev, "abort tmf: TMF task timeout and not done\n"); |
d3c4dd4e JG |
916 | if (slot) |
917 | slot->task = NULL; | |
918 | ||
0efff300 | 919 | goto ex_err; |
f1c88211 XC |
920 | } else |
921 | dev_err(dev, "abort tmf: TMF task timeout\n"); | |
0efff300 JG |
922 | } |
923 | ||
924 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
1af1b808 | 925 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { |
0efff300 JG |
926 | res = TMF_RESP_FUNC_COMPLETE; |
927 | break; | |
928 | } | |
929 | ||
4ffde482 JG |
930 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
931 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
932 | res = TMF_RESP_FUNC_SUCC; | |
933 | break; | |
934 | } | |
935 | ||
0efff300 JG |
936 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
937 | task->task_status.stat == SAS_DATA_UNDERRUN) { | |
938 | /* no error, but return the number of bytes of | |
939 | * underrun | |
940 | */ | |
941 | dev_warn(dev, "abort tmf: task to dev %016llx " | |
942 | "resp: 0x%x sts 0x%x underrun\n", | |
943 | SAS_ADDR(device->sas_addr), | |
944 | task->task_status.resp, | |
945 | task->task_status.stat); | |
946 | res = task->task_status.residual; | |
947 | break; | |
948 | } | |
949 | ||
950 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
951 | task->task_status.stat == SAS_DATA_OVERRUN) { | |
952 | dev_warn(dev, "abort tmf: blocked task error\n"); | |
953 | res = -EMSGSIZE; | |
954 | break; | |
955 | } | |
956 | ||
957 | dev_warn(dev, "abort tmf: task to dev " | |
958 | "%016llx resp: 0x%x status 0x%x\n", | |
959 | SAS_ADDR(device->sas_addr), task->task_status.resp, | |
960 | task->task_status.stat); | |
961 | sas_free_task(task); | |
962 | task = NULL; | |
963 | } | |
964 | ex_err: | |
d2d7e7a0 XC |
965 | if (retry == TASK_RETRY) |
966 | dev_warn(dev, "abort tmf: executing internal task failed!\n"); | |
0efff300 JG |
967 | sas_free_task(task); |
968 | return res; | |
969 | } | |
970 | ||
7c594f04 XC |
971 | static void hisi_sas_fill_ata_reset_cmd(struct ata_device *dev, |
972 | bool reset, int pmp, u8 *fis) | |
973 | { | |
974 | struct ata_taskfile tf; | |
975 | ||
976 | ata_tf_init(dev, &tf); | |
977 | if (reset) | |
978 | tf.ctl |= ATA_SRST; | |
979 | else | |
980 | tf.ctl &= ~ATA_SRST; | |
981 | tf.command = ATA_CMD_DEV_RESET; | |
982 | ata_tf_to_fis(&tf, pmp, 0, fis); | |
983 | } | |
984 | ||
985 | static int hisi_sas_softreset_ata_disk(struct domain_device *device) | |
986 | { | |
987 | u8 fis[20] = {0}; | |
988 | struct ata_port *ap = device->sata_dev.ap; | |
989 | struct ata_link *link; | |
990 | int rc = TMF_RESP_FUNC_FAILED; | |
991 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 992 | struct device *dev = hisi_hba->dev; |
7c594f04 XC |
993 | int s = sizeof(struct host_to_dev_fis); |
994 | unsigned long flags; | |
995 | ||
996 | ata_for_each_link(link, ap, EDGE) { | |
997 | int pmp = sata_srst_pmp(link); | |
998 | ||
999 | hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis); | |
1000 | rc = hisi_sas_exec_internal_tmf_task(device, fis, s, NULL); | |
1001 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1002 | break; | |
1003 | } | |
1004 | ||
1005 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1006 | ata_for_each_link(link, ap, EDGE) { | |
1007 | int pmp = sata_srst_pmp(link); | |
1008 | ||
1009 | hisi_sas_fill_ata_reset_cmd(link->device, 0, pmp, fis); | |
1010 | rc = hisi_sas_exec_internal_tmf_task(device, fis, | |
1011 | s, NULL); | |
1012 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1013 | dev_err(dev, "ata disk de-reset failed\n"); | |
1014 | } | |
1015 | } else { | |
1016 | dev_err(dev, "ata disk reset failed\n"); | |
1017 | } | |
1018 | ||
1019 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1020 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1021 | hisi_sas_release_task(hisi_hba, device); | |
1022 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1023 | } | |
1024 | ||
1025 | return rc; | |
1026 | } | |
1027 | ||
0efff300 JG |
1028 | static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device, |
1029 | u8 *lun, struct hisi_sas_tmf_task *tmf) | |
1030 | { | |
1031 | struct sas_ssp_task ssp_task; | |
1032 | ||
1033 | if (!(device->tproto & SAS_PROTOCOL_SSP)) | |
1034 | return TMF_RESP_FUNC_ESUPP; | |
1035 | ||
1036 | memcpy(ssp_task.LUN, lun, 8); | |
1037 | ||
1038 | return hisi_sas_exec_internal_tmf_task(device, &ssp_task, | |
1039 | sizeof(ssp_task), tmf); | |
1040 | } | |
1041 | ||
a669bdbf | 1042 | static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba) |
917d3bda | 1043 | { |
a669bdbf | 1044 | u32 state = hisi_hba->hw->get_phys_state(hisi_hba); |
917d3bda XT |
1045 | int i; |
1046 | ||
1047 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
a669bdbf XT |
1048 | struct hisi_sas_device *sas_dev = &hisi_hba->devices[i]; |
1049 | struct domain_device *device = sas_dev->sas_device; | |
1050 | struct asd_sas_port *sas_port; | |
1051 | struct hisi_sas_port *port; | |
1052 | struct hisi_sas_phy *phy = NULL; | |
1053 | struct asd_sas_phy *sas_phy; | |
1054 | ||
917d3bda | 1055 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) |
a669bdbf | 1056 | || !device || !device->port) |
917d3bda XT |
1057 | continue; |
1058 | ||
a669bdbf XT |
1059 | sas_port = device->port; |
1060 | port = to_hisi_sas_port(sas_port); | |
1061 | ||
1062 | list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el) | |
1063 | if (state & BIT(sas_phy->id)) { | |
1064 | phy = sas_phy->lldd_phy; | |
1065 | break; | |
1066 | } | |
1067 | ||
1068 | if (phy) { | |
1069 | port->id = phy->port_id; | |
917d3bda | 1070 | |
a669bdbf XT |
1071 | /* Update linkrate of directly attached device. */ |
1072 | if (!device->parent) | |
1073 | device->linkrate = phy->sas_phy.linkrate; | |
917d3bda | 1074 | |
a669bdbf XT |
1075 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); |
1076 | } else | |
1077 | port->id = 0xff; | |
917d3bda XT |
1078 | } |
1079 | } | |
1080 | ||
1081 | static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 old_state, | |
1082 | u32 state) | |
1083 | { | |
1084 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1085 | struct asd_sas_port *_sas_port = NULL; | |
1086 | int phy_no; | |
1087 | ||
1088 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { | |
1089 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1090 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1091 | struct asd_sas_port *sas_port = sas_phy->port; | |
917d3bda XT |
1092 | bool do_port_check = !!(_sas_port != sas_port); |
1093 | ||
1094 | if (!sas_phy->phy->enabled) | |
1095 | continue; | |
1096 | ||
1097 | /* Report PHY state change to libsas */ | |
a669bdbf XT |
1098 | if (state & BIT(phy_no)) { |
1099 | if (do_port_check && sas_port && sas_port->port_dev) { | |
917d3bda XT |
1100 | struct domain_device *dev = sas_port->port_dev; |
1101 | ||
1102 | _sas_port = sas_port; | |
917d3bda XT |
1103 | |
1104 | if (DEV_IS_EXPANDER(dev->dev_type)) | |
1105 | sas_ha->notify_port_event(sas_phy, | |
1106 | PORTE_BROADCAST_RCVD); | |
1107 | } | |
1108 | } else if (old_state & (1 << phy_no)) | |
1109 | /* PHY down but was up before */ | |
1110 | hisi_sas_phy_down(hisi_hba, phy_no, 0); | |
1111 | ||
1112 | } | |
917d3bda XT |
1113 | } |
1114 | ||
06ec0fb9 XC |
1115 | static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba) |
1116 | { | |
917d3bda XT |
1117 | struct device *dev = hisi_hba->dev; |
1118 | struct Scsi_Host *shost = hisi_hba->shost; | |
1119 | u32 old_state, state; | |
1120 | unsigned long flags; | |
06ec0fb9 XC |
1121 | int rc; |
1122 | ||
1123 | if (!hisi_hba->hw->soft_reset) | |
1124 | return -1; | |
1125 | ||
917d3bda XT |
1126 | if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) |
1127 | return -1; | |
06ec0fb9 | 1128 | |
fb51e7a8 | 1129 | dev_info(dev, "controller resetting...\n"); |
917d3bda | 1130 | old_state = hisi_hba->hw->get_phys_state(hisi_hba); |
06ec0fb9 | 1131 | |
917d3bda XT |
1132 | scsi_block_requests(shost); |
1133 | set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
1134 | rc = hisi_hba->hw->soft_reset(hisi_hba); | |
1135 | if (rc) { | |
1136 | dev_warn(dev, "controller reset failed (%d)\n", rc); | |
1137 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
fb51e7a8 | 1138 | scsi_unblock_requests(shost); |
917d3bda XT |
1139 | goto out; |
1140 | } | |
1141 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1142 | hisi_sas_release_tasks(hisi_hba); | |
1143 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1144 | ||
917d3bda XT |
1145 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); |
1146 | ||
1147 | /* Init and wait for PHYs to come up and all libsas event finished. */ | |
1148 | hisi_hba->hw->phys_init(hisi_hba); | |
1149 | msleep(1000); | |
a669bdbf | 1150 | hisi_sas_refresh_port_id(hisi_hba); |
fb51e7a8 | 1151 | scsi_unblock_requests(shost); |
917d3bda XT |
1152 | |
1153 | state = hisi_hba->hw->get_phys_state(hisi_hba); | |
1154 | hisi_sas_rescan_topology(hisi_hba, old_state, state); | |
fb51e7a8 | 1155 | dev_info(dev, "controller reset complete\n"); |
06ec0fb9 XC |
1156 | |
1157 | out: | |
06ec0fb9 | 1158 | clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); |
917d3bda | 1159 | |
06ec0fb9 XC |
1160 | return rc; |
1161 | } | |
1162 | ||
0efff300 JG |
1163 | static int hisi_sas_abort_task(struct sas_task *task) |
1164 | { | |
1165 | struct scsi_lun lun; | |
1166 | struct hisi_sas_tmf_task tmf_task; | |
1167 | struct domain_device *device = task->dev; | |
1168 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1169 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
11b75249 | 1170 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1171 | int rc = TMF_RESP_FUNC_FAILED; |
1172 | unsigned long flags; | |
1173 | ||
1174 | if (!sas_dev) { | |
1175 | dev_warn(dev, "Device has been removed\n"); | |
1176 | return TMF_RESP_FUNC_FAILED; | |
1177 | } | |
1178 | ||
0efff300 | 1179 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { |
0efff300 JG |
1180 | rc = TMF_RESP_FUNC_COMPLETE; |
1181 | goto out; | |
1182 | } | |
1183 | ||
0efff300 JG |
1184 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
1185 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1186 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1187 | struct hisi_sas_slot *slot = task->lldd_task; | |
1188 | u32 tag = slot->idx; | |
c35279f2 | 1189 | int rc2; |
0efff300 JG |
1190 | |
1191 | int_to_scsilun(cmnd->device->lun, &lun); | |
1192 | tmf_task.tmf = TMF_ABORT_TASK; | |
1193 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1194 | ||
1195 | rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, | |
1196 | &tmf_task); | |
1197 | ||
c35279f2 JG |
1198 | rc2 = hisi_sas_internal_task_abort(hisi_hba, device, |
1199 | HISI_SAS_INT_ABT_CMD, tag); | |
813709f2 XT |
1200 | if (rc2 < 0) { |
1201 | dev_err(dev, "abort task: internal abort (%d)\n", rc2); | |
1202 | return TMF_RESP_FUNC_FAILED; | |
1203 | } | |
1204 | ||
c35279f2 JG |
1205 | /* |
1206 | * If the TMF finds that the IO is not in the device and also | |
1207 | * the internal abort does not succeed, then it is safe to | |
1208 | * free the slot. | |
1209 | * Note: if the internal abort succeeds then the slot | |
1210 | * will have already been completed | |
1211 | */ | |
1212 | if (rc == TMF_RESP_FUNC_COMPLETE && rc2 != TMF_RESP_FUNC_SUCC) { | |
0efff300 | 1213 | if (task->lldd_task) { |
0efff300 | 1214 | spin_lock_irqsave(&hisi_hba->lock, flags); |
c35279f2 | 1215 | hisi_sas_do_release_task(hisi_hba, task, slot); |
0efff300 JG |
1216 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1217 | } | |
1218 | } | |
0efff300 JG |
1219 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1220 | task->task_proto & SAS_PROTOCOL_STP) { | |
1221 | if (task->dev->dev_type == SAS_SATA_DEV) { | |
813709f2 XT |
1222 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1223 | HISI_SAS_INT_ABT_DEV, 0); | |
1224 | if (rc < 0) { | |
1225 | dev_err(dev, "abort task: internal abort failed\n"); | |
1226 | goto out; | |
1227 | } | |
d30ff263 | 1228 | hisi_sas_dereg_device(hisi_hba, device); |
7c594f04 | 1229 | rc = hisi_sas_softreset_ata_disk(device); |
0efff300 | 1230 | } |
eb045e04 | 1231 | } else if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SMP) { |
dc8a49ca JG |
1232 | /* SMP */ |
1233 | struct hisi_sas_slot *slot = task->lldd_task; | |
1234 | u32 tag = slot->idx; | |
0efff300 | 1235 | |
ccbfe5a0 XC |
1236 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1237 | HISI_SAS_INT_ABT_CMD, tag); | |
813709f2 XT |
1238 | if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) && |
1239 | task->lldd_task) { | |
ccbfe5a0 XC |
1240 | spin_lock_irqsave(&hisi_hba->lock, flags); |
1241 | hisi_sas_do_release_task(hisi_hba, task, slot); | |
1242 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1243 | } | |
0efff300 JG |
1244 | } |
1245 | ||
1246 | out: | |
1247 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1248 | dev_notice(dev, "abort task: rc=%d\n", rc); | |
1249 | return rc; | |
1250 | } | |
1251 | ||
1252 | static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun) | |
1253 | { | |
2a038131 XT |
1254 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); |
1255 | struct device *dev = hisi_hba->dev; | |
0efff300 JG |
1256 | struct hisi_sas_tmf_task tmf_task; |
1257 | int rc = TMF_RESP_FUNC_FAILED; | |
2a038131 XT |
1258 | unsigned long flags; |
1259 | ||
1260 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1261 | HISI_SAS_INT_ABT_DEV, 0); | |
1262 | if (rc < 0) { | |
1263 | dev_err(dev, "abort task set: internal abort rc=%d\n", rc); | |
1264 | return TMF_RESP_FUNC_FAILED; | |
1265 | } | |
1266 | hisi_sas_dereg_device(hisi_hba, device); | |
0efff300 JG |
1267 | |
1268 | tmf_task.tmf = TMF_ABORT_TASK_SET; | |
1269 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1270 | ||
2a038131 XT |
1271 | if (rc == TMF_RESP_FUNC_COMPLETE) { |
1272 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1273 | hisi_sas_release_task(hisi_hba, device); | |
1274 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1275 | } | |
1276 | ||
0efff300 JG |
1277 | return rc; |
1278 | } | |
1279 | ||
1280 | static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun) | |
1281 | { | |
1282 | int rc = TMF_RESP_FUNC_FAILED; | |
1283 | struct hisi_sas_tmf_task tmf_task; | |
1284 | ||
1285 | tmf_task.tmf = TMF_CLEAR_ACA; | |
1286 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1287 | ||
1288 | return rc; | |
1289 | } | |
1290 | ||
1291 | static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device) | |
1292 | { | |
1293 | struct sas_phy *phy = sas_get_local_phy(device); | |
1294 | int rc, reset_type = (device->dev_type == SAS_SATA_DEV || | |
1295 | (device->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; | |
1296 | rc = sas_phy_reset(phy, reset_type); | |
1297 | sas_put_local_phy(phy); | |
1298 | msleep(2000); | |
1299 | return rc; | |
1300 | } | |
1301 | ||
1302 | static int hisi_sas_I_T_nexus_reset(struct domain_device *device) | |
1303 | { | |
1304 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1305 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
813709f2 | 1306 | struct device *dev = hisi_hba->dev; |
0efff300 | 1307 | int rc = TMF_RESP_FUNC_FAILED; |
813709f2 | 1308 | unsigned long flags; |
0efff300 JG |
1309 | |
1310 | if (sas_dev->dev_status != HISI_SAS_DEV_EH) | |
1311 | return TMF_RESP_FUNC_FAILED; | |
1312 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
1313 | ||
813709f2 | 1314 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
d30ff263 | 1315 | HISI_SAS_INT_ABT_DEV, 0); |
813709f2 XT |
1316 | if (rc < 0) { |
1317 | dev_err(dev, "I_T nexus reset: internal abort (%d)\n", rc); | |
1318 | return TMF_RESP_FUNC_FAILED; | |
1319 | } | |
d30ff263 XC |
1320 | hisi_sas_dereg_device(hisi_hba, device); |
1321 | ||
0efff300 JG |
1322 | rc = hisi_sas_debug_I_T_nexus_reset(device); |
1323 | ||
9960a24a | 1324 | if ((rc == TMF_RESP_FUNC_COMPLETE) || (rc == -ENODEV)) { |
6131243a XC |
1325 | spin_lock_irqsave(&hisi_hba->lock, flags); |
1326 | hisi_sas_release_task(hisi_hba, device); | |
1327 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1328 | } | |
1329 | return rc; | |
0efff300 JG |
1330 | } |
1331 | ||
1332 | static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun) | |
1333 | { | |
0efff300 JG |
1334 | struct hisi_sas_device *sas_dev = device->lldd_dev; |
1335 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1336 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1337 | unsigned long flags; |
1338 | int rc = TMF_RESP_FUNC_FAILED; | |
1339 | ||
0efff300 | 1340 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
055945df JG |
1341 | if (dev_is_sata(device)) { |
1342 | struct sas_phy *phy; | |
1343 | ||
1344 | /* Clear internal IO and then hardreset */ | |
1345 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1346 | HISI_SAS_INT_ABT_DEV, 0); | |
813709f2 XT |
1347 | if (rc < 0) { |
1348 | dev_err(dev, "lu_reset: internal abort failed\n"); | |
055945df | 1349 | goto out; |
813709f2 | 1350 | } |
d30ff263 | 1351 | hisi_sas_dereg_device(hisi_hba, device); |
0efff300 | 1352 | |
055945df JG |
1353 | phy = sas_get_local_phy(device); |
1354 | ||
1355 | rc = sas_phy_reset(phy, 1); | |
1356 | ||
1357 | if (rc == 0) { | |
1358 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1359 | hisi_sas_release_task(hisi_hba, device); | |
1360 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1361 | } | |
1362 | sas_put_local_phy(phy); | |
1363 | } else { | |
1364 | struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET }; | |
1365 | ||
2a038131 XT |
1366 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1367 | HISI_SAS_INT_ABT_DEV, 0); | |
1368 | if (rc < 0) { | |
1369 | dev_err(dev, "lu_reset: internal abort failed\n"); | |
1370 | goto out; | |
1371 | } | |
1372 | hisi_sas_dereg_device(hisi_hba, device); | |
1373 | ||
055945df JG |
1374 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); |
1375 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1376 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1377 | hisi_sas_release_task(hisi_hba, device); | |
1378 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1379 | } | |
1380 | } | |
1381 | out: | |
14d3f397 | 1382 | if (rc != TMF_RESP_FUNC_COMPLETE) |
ad604832 | 1383 | dev_err(dev, "lu_reset: for device[%d]:rc= %d\n", |
14d3f397 | 1384 | sas_dev->device_id, rc); |
0efff300 JG |
1385 | return rc; |
1386 | } | |
1387 | ||
8b05ad6a JG |
1388 | static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha) |
1389 | { | |
1390 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
e402acdb | 1391 | HISI_SAS_DECLARE_RST_WORK_ON_STACK(r); |
8b05ad6a | 1392 | |
e402acdb XT |
1393 | queue_work(hisi_hba->wq, &r.work); |
1394 | wait_for_completion(r.completion); | |
1395 | if (r.done) | |
1396 | return TMF_RESP_FUNC_COMPLETE; | |
1397 | ||
1398 | return TMF_RESP_FUNC_FAILED; | |
8b05ad6a JG |
1399 | } |
1400 | ||
0efff300 JG |
1401 | static int hisi_sas_query_task(struct sas_task *task) |
1402 | { | |
1403 | struct scsi_lun lun; | |
1404 | struct hisi_sas_tmf_task tmf_task; | |
1405 | int rc = TMF_RESP_FUNC_FAILED; | |
1406 | ||
1407 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1408 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1409 | struct domain_device *device = task->dev; | |
1410 | struct hisi_sas_slot *slot = task->lldd_task; | |
1411 | u32 tag = slot->idx; | |
1412 | ||
1413 | int_to_scsilun(cmnd->device->lun, &lun); | |
1414 | tmf_task.tmf = TMF_QUERY_TASK; | |
1415 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1416 | ||
1417 | rc = hisi_sas_debug_issue_ssp_tmf(device, | |
1418 | lun.scsi_lun, | |
1419 | &tmf_task); | |
1420 | switch (rc) { | |
1421 | /* The task is still in Lun, release it then */ | |
1422 | case TMF_RESP_FUNC_SUCC: | |
1423 | /* The task is not in Lun or failed, reset the phy */ | |
1424 | case TMF_RESP_FUNC_FAILED: | |
1425 | case TMF_RESP_FUNC_COMPLETE: | |
1426 | break; | |
997ee43c XC |
1427 | default: |
1428 | rc = TMF_RESP_FUNC_FAILED; | |
1429 | break; | |
0efff300 JG |
1430 | } |
1431 | } | |
1432 | return rc; | |
1433 | } | |
1434 | ||
441c2740 | 1435 | static int |
ad604832 | 1436 | hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id, |
441c2740 JG |
1437 | struct sas_task *task, int abort_flag, |
1438 | int task_tag) | |
1439 | { | |
1440 | struct domain_device *device = task->dev; | |
1441 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1442 | struct device *dev = hisi_hba->dev; |
441c2740 JG |
1443 | struct hisi_sas_port *port; |
1444 | struct hisi_sas_slot *slot; | |
2e244f0f | 1445 | struct asd_sas_port *sas_port = device->port; |
441c2740 | 1446 | struct hisi_sas_cmd_hdr *cmd_hdr_base; |
b1a49412 | 1447 | struct hisi_sas_dq *dq = sas_dev->dq; |
441c2740 | 1448 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
b1a49412 | 1449 | unsigned long flags, flags_dq; |
441c2740 | 1450 | |
917d3bda | 1451 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
1452 | return -EINVAL; |
1453 | ||
441c2740 JG |
1454 | if (!device->port) |
1455 | return -1; | |
1456 | ||
2e244f0f | 1457 | port = to_hisi_sas_port(sas_port); |
441c2740 JG |
1458 | |
1459 | /* simply get a slot and send abort command */ | |
b1a49412 | 1460 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1461 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); |
b1a49412 XC |
1462 | if (rc) { |
1463 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
441c2740 | 1464 | goto err_out; |
b1a49412 XC |
1465 | } |
1466 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1467 | ||
1468 | spin_lock_irqsave(&dq->lock, flags_dq); | |
1469 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
441c2740 JG |
1470 | if (rc) |
1471 | goto err_out_tag; | |
1472 | ||
b1a49412 XC |
1473 | dlvry_queue = dq->id; |
1474 | dlvry_queue_slot = dq->wr_point; | |
1475 | ||
441c2740 JG |
1476 | slot = &hisi_hba->slot_info[slot_idx]; |
1477 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
1478 | ||
1479 | slot->idx = slot_idx; | |
1480 | slot->n_elem = n_elem; | |
1481 | slot->dlvry_queue = dlvry_queue; | |
1482 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
1483 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
1484 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
1485 | slot->task = task; | |
1486 | slot->port = port; | |
1487 | task->lldd_task = slot; | |
1488 | ||
031da09c XC |
1489 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
1490 | GFP_ATOMIC, &slot->buf_dma); | |
1491 | if (!slot->buf) { | |
1492 | rc = -ENOMEM; | |
1493 | goto err_out_tag; | |
1494 | } | |
1495 | ||
441c2740 | 1496 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
031da09c XC |
1497 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
1498 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
441c2740 JG |
1499 | |
1500 | rc = hisi_sas_task_prep_abort(hisi_hba, slot, device_id, | |
1501 | abort_flag, task_tag); | |
1502 | if (rc) | |
031da09c | 1503 | goto err_out_buf; |
441c2740 | 1504 | |
9feaf909 | 1505 | spin_lock_irqsave(&hisi_hba->lock, flags); |
405314df | 1506 | list_add_tail(&slot->entry, &sas_dev->list); |
9feaf909 | 1507 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
54c9dd2d | 1508 | spin_lock_irqsave(&task->task_state_lock, flags); |
441c2740 | 1509 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 1510 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
441c2740 | 1511 | |
b1a49412 | 1512 | dq->slot_prep = slot; |
441c2740 | 1513 | |
b1a49412 XC |
1514 | /* send abort command to the chip */ |
1515 | hisi_hba->hw->start_delivery(dq); | |
1516 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1517 | |
1518 | return 0; | |
1519 | ||
031da09c XC |
1520 | err_out_buf: |
1521 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
1522 | slot->buf_dma); | |
441c2740 | 1523 | err_out_tag: |
b1a49412 | 1524 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1525 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 XC |
1526 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1527 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1528 | err_out: |
1529 | dev_err(dev, "internal abort task prep: failed[%d]!\n", rc); | |
1530 | ||
1531 | return rc; | |
1532 | } | |
1533 | ||
1534 | /** | |
1535 | * hisi_sas_internal_task_abort -- execute an internal | |
1536 | * abort command for single IO command or a device | |
1537 | * @hisi_hba: host controller struct | |
1538 | * @device: domain device | |
1539 | * @abort_flag: mode of operation, device or single IO | |
1540 | * @tag: tag of IO to be aborted (only relevant to single | |
1541 | * IO mode) | |
1542 | */ | |
1543 | static int | |
1544 | hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, | |
1545 | struct domain_device *device, | |
1546 | int abort_flag, int tag) | |
1547 | { | |
1548 | struct sas_task *task; | |
1549 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1550 | struct device *dev = hisi_hba->dev; |
441c2740 | 1551 | int res; |
441c2740 | 1552 | |
813709f2 XT |
1553 | /* |
1554 | * The interface is not realized means this HW don't support internal | |
1555 | * abort, or don't need to do internal abort. Then here, we return | |
1556 | * TMF_RESP_FUNC_FAILED and let other steps go on, which depends that | |
1557 | * the internal abort has been executed and returned CQ. | |
1558 | */ | |
441c2740 | 1559 | if (!hisi_hba->hw->prep_abort) |
813709f2 | 1560 | return TMF_RESP_FUNC_FAILED; |
441c2740 JG |
1561 | |
1562 | task = sas_alloc_slow_task(GFP_KERNEL); | |
1563 | if (!task) | |
1564 | return -ENOMEM; | |
1565 | ||
1566 | task->dev = device; | |
1567 | task->task_proto = device->tproto; | |
1568 | task->task_done = hisi_sas_task_done; | |
841b86f3 | 1569 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
bb9abc4a | 1570 | task->slow_task->timer.expires = jiffies + INTERNAL_ABORT_TIMEOUT*HZ; |
441c2740 JG |
1571 | add_timer(&task->slow_task->timer); |
1572 | ||
441c2740 JG |
1573 | res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id, |
1574 | task, abort_flag, tag); | |
441c2740 JG |
1575 | if (res) { |
1576 | del_timer(&task->slow_task->timer); | |
1577 | dev_err(dev, "internal task abort: executing internal task failed: %d\n", | |
1578 | res); | |
1579 | goto exit; | |
1580 | } | |
1581 | wait_for_completion(&task->slow_task->completion); | |
1582 | res = TMF_RESP_FUNC_FAILED; | |
1583 | ||
f64a6988 XC |
1584 | /* Internal abort timed out */ |
1585 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
1586 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
1587 | struct hisi_sas_slot *slot = task->lldd_task; | |
1588 | ||
1589 | if (slot) | |
1590 | slot->task = NULL; | |
f1c88211 | 1591 | dev_err(dev, "internal task abort: timeout and not done.\n"); |
813709f2 | 1592 | res = -EIO; |
f692a677 | 1593 | goto exit; |
f1c88211 XC |
1594 | } else |
1595 | dev_err(dev, "internal task abort: timeout.\n"); | |
f64a6988 XC |
1596 | } |
1597 | ||
441c2740 JG |
1598 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1599 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { | |
1600 | res = TMF_RESP_FUNC_COMPLETE; | |
1601 | goto exit; | |
1602 | } | |
1603 | ||
c35279f2 JG |
1604 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1605 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
1606 | res = TMF_RESP_FUNC_SUCC; | |
1607 | goto exit; | |
1608 | } | |
1609 | ||
441c2740 | 1610 | exit: |
297d7302 | 1611 | dev_dbg(dev, "internal task abort: task to dev %016llx task=%p " |
441c2740 JG |
1612 | "resp: 0x%x sts 0x%x\n", |
1613 | SAS_ADDR(device->sas_addr), | |
1614 | task, | |
1615 | task->task_status.resp, /* 0 is complete, -1 is undelivered */ | |
1616 | task->task_status.stat); | |
1617 | sas_free_task(task); | |
1618 | ||
1619 | return res; | |
1620 | } | |
1621 | ||
184a4635 JG |
1622 | static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy) |
1623 | { | |
1624 | hisi_sas_port_notify_formed(sas_phy); | |
1625 | } | |
1626 | ||
336bd78b XC |
1627 | static void hisi_sas_port_deformed(struct asd_sas_phy *sas_phy) |
1628 | { | |
1629 | } | |
1630 | ||
6379c560 XT |
1631 | static int hisi_sas_write_gpio(struct sas_ha_struct *sha, u8 reg_type, |
1632 | u8 reg_index, u8 reg_count, u8 *write_data) | |
1633 | { | |
1634 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
1635 | ||
1636 | if (!hisi_hba->hw->write_gpio) | |
1637 | return -EOPNOTSUPP; | |
1638 | ||
1639 | return hisi_hba->hw->write_gpio(hisi_hba, reg_type, | |
1640 | reg_index, reg_count, write_data); | |
1641 | } | |
1642 | ||
184a4635 JG |
1643 | static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy) |
1644 | { | |
1645 | phy->phy_attached = 0; | |
1646 | phy->phy_type = 0; | |
1647 | phy->port = NULL; | |
1648 | } | |
1649 | ||
1650 | void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) | |
1651 | { | |
1652 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1653 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1654 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1655 | ||
1656 | if (rdy) { | |
1657 | /* Phy down but ready */ | |
1658 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
1659 | hisi_sas_port_notify_formed(sas_phy); | |
1660 | } else { | |
1661 | struct hisi_sas_port *port = phy->port; | |
1662 | ||
1663 | /* Phy down and not ready */ | |
1664 | sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL); | |
1665 | sas_phy_disconnected(sas_phy); | |
1666 | ||
1667 | if (port) { | |
1668 | if (phy->phy_type & PORT_TYPE_SAS) { | |
1669 | int port_id = port->id; | |
1670 | ||
1671 | if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba, | |
1672 | port_id)) | |
1673 | port->port_attached = 0; | |
1674 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
1675 | port->port_attached = 0; | |
1676 | } | |
1677 | hisi_sas_phy_disconnected(phy); | |
1678 | } | |
1679 | } | |
1680 | EXPORT_SYMBOL_GPL(hisi_sas_phy_down); | |
1681 | ||
571295f8 XT |
1682 | void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba) |
1683 | { | |
1684 | int i; | |
1685 | ||
1686 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1687 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
1688 | ||
1689 | tasklet_kill(&cq->tasklet); | |
1690 | } | |
1691 | } | |
1692 | EXPORT_SYMBOL_GPL(hisi_sas_kill_tasklets); | |
06ec0fb9 | 1693 | |
e21fe3a5 JG |
1694 | struct scsi_transport_template *hisi_sas_stt; |
1695 | EXPORT_SYMBOL_GPL(hisi_sas_stt); | |
e8899fad | 1696 | |
1e15feac | 1697 | static struct device_attribute *host_attrs[] = { |
8eea9dd8 JY |
1698 | &dev_attr_phy_event_threshold, |
1699 | NULL, | |
1700 | }; | |
1701 | ||
e21fe3a5 | 1702 | static struct scsi_host_template _hisi_sas_sht = { |
7eb7869f JG |
1703 | .module = THIS_MODULE, |
1704 | .name = DRV_NAME, | |
1705 | .queuecommand = sas_queuecommand, | |
1706 | .target_alloc = sas_target_alloc, | |
31eec8a6 | 1707 | .slave_configure = hisi_sas_slave_configure, |
701f75ec JG |
1708 | .scan_finished = hisi_sas_scan_finished, |
1709 | .scan_start = hisi_sas_scan_start, | |
7eb7869f JG |
1710 | .change_queue_depth = sas_change_queue_depth, |
1711 | .bios_param = sas_bios_param, | |
1712 | .can_queue = 1, | |
1713 | .this_id = -1, | |
1714 | .sg_tablesize = SG_ALL, | |
1715 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, | |
1716 | .use_clustering = ENABLE_CLUSTERING, | |
1717 | .eh_device_reset_handler = sas_eh_device_reset_handler, | |
cc199e78 | 1718 | .eh_target_reset_handler = sas_eh_target_reset_handler, |
7eb7869f JG |
1719 | .target_destroy = sas_target_destroy, |
1720 | .ioctl = sas_ioctl, | |
8eea9dd8 | 1721 | .shost_attrs = host_attrs, |
7eb7869f | 1722 | }; |
e21fe3a5 JG |
1723 | struct scsi_host_template *hisi_sas_sht = &_hisi_sas_sht; |
1724 | EXPORT_SYMBOL_GPL(hisi_sas_sht); | |
7eb7869f | 1725 | |
e8899fad | 1726 | static struct sas_domain_function_template hisi_sas_transport_ops = { |
abda97c2 JG |
1727 | .lldd_dev_found = hisi_sas_dev_found, |
1728 | .lldd_dev_gone = hisi_sas_dev_gone, | |
42e7a693 | 1729 | .lldd_execute_task = hisi_sas_queue_command, |
e4189d53 | 1730 | .lldd_control_phy = hisi_sas_control_phy, |
0efff300 JG |
1731 | .lldd_abort_task = hisi_sas_abort_task, |
1732 | .lldd_abort_task_set = hisi_sas_abort_task_set, | |
1733 | .lldd_clear_aca = hisi_sas_clear_aca, | |
1734 | .lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset, | |
1735 | .lldd_lu_reset = hisi_sas_lu_reset, | |
1736 | .lldd_query_task = hisi_sas_query_task, | |
8b05ad6a | 1737 | .lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha, |
184a4635 | 1738 | .lldd_port_formed = hisi_sas_port_formed, |
336bd78b | 1739 | .lldd_port_deformed = hisi_sas_port_deformed, |
6379c560 | 1740 | .lldd_write_gpio = hisi_sas_write_gpio, |
e8899fad JG |
1741 | }; |
1742 | ||
06ec0fb9 XC |
1743 | void hisi_sas_init_mem(struct hisi_hba *hisi_hba) |
1744 | { | |
1745 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; | |
1746 | ||
1747 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1748 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
1749 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; | |
1750 | ||
1751 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1752 | memset(hisi_hba->cmd_hdr[i], 0, s); | |
1753 | dq->wr_point = 0; | |
1754 | ||
1755 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1756 | memset(hisi_hba->complete_hdr[i], 0, s); | |
1757 | cq->rd_point = 0; | |
1758 | } | |
1759 | ||
1760 | s = sizeof(struct hisi_sas_initial_fis) * hisi_hba->n_phy; | |
1761 | memset(hisi_hba->initial_fis, 0, s); | |
1762 | ||
1763 | s = max_command_entries * sizeof(struct hisi_sas_iost); | |
1764 | memset(hisi_hba->iost, 0, s); | |
1765 | ||
1766 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); | |
1767 | memset(hisi_hba->breakpoint, 0, s); | |
1768 | ||
3297ded1 | 1769 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
06ec0fb9 XC |
1770 | memset(hisi_hba->sata_breakpoint, 0, s); |
1771 | } | |
1772 | EXPORT_SYMBOL_GPL(hisi_sas_init_mem); | |
1773 | ||
e21fe3a5 | 1774 | int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost) |
6be6de18 | 1775 | { |
11b75249 | 1776 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1777 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
6be6de18 | 1778 | |
fa42d80d | 1779 | spin_lock_init(&hisi_hba->lock); |
976867e6 JG |
1780 | for (i = 0; i < hisi_hba->n_phy; i++) { |
1781 | hisi_sas_phy_init(hisi_hba, i); | |
1782 | hisi_hba->port[i].port_attached = 0; | |
1783 | hisi_hba->port[i].id = -1; | |
976867e6 JG |
1784 | } |
1785 | ||
af740dbe JG |
1786 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
1787 | hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED; | |
1788 | hisi_hba->devices[i].device_id = i; | |
1789 | hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL; | |
1790 | } | |
1791 | ||
6be6de18 | 1792 | for (i = 0; i < hisi_hba->queue_count; i++) { |
9101a079 | 1793 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
4fde02ad | 1794 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; |
9101a079 JG |
1795 | |
1796 | /* Completion queue structure */ | |
1797 | cq->id = i; | |
1798 | cq->hisi_hba = hisi_hba; | |
1799 | ||
4fde02ad | 1800 | /* Delivery queue structure */ |
39bade0c | 1801 | spin_lock_init(&dq->lock); |
4fde02ad JG |
1802 | dq->id = i; |
1803 | dq->hisi_hba = hisi_hba; | |
1804 | ||
6be6de18 JG |
1805 | /* Delivery queue */ |
1806 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1807 | hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s, | |
1808 | &hisi_hba->cmd_hdr_dma[i], GFP_KERNEL); | |
1809 | if (!hisi_hba->cmd_hdr[i]) | |
1810 | goto err_out; | |
6be6de18 JG |
1811 | |
1812 | /* Completion queue */ | |
1813 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1814 | hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s, | |
1815 | &hisi_hba->complete_hdr_dma[i], GFP_KERNEL); | |
1816 | if (!hisi_hba->complete_hdr[i]) | |
1817 | goto err_out; | |
6be6de18 JG |
1818 | } |
1819 | ||
f557e32c XT |
1820 | s = sizeof(struct hisi_sas_slot_buf_table); |
1821 | hisi_hba->buffer_pool = dma_pool_create("dma_buffer", dev, s, 16, 0); | |
1822 | if (!hisi_hba->buffer_pool) | |
6be6de18 JG |
1823 | goto err_out; |
1824 | ||
1825 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
4f4e21b8 | 1826 | hisi_hba->itct = dma_zalloc_coherent(dev, s, &hisi_hba->itct_dma, |
6be6de18 JG |
1827 | GFP_KERNEL); |
1828 | if (!hisi_hba->itct) | |
1829 | goto err_out; | |
1830 | ||
a8d547bd | 1831 | hisi_hba->slot_info = devm_kcalloc(dev, max_command_entries, |
6be6de18 JG |
1832 | sizeof(struct hisi_sas_slot), |
1833 | GFP_KERNEL); | |
1834 | if (!hisi_hba->slot_info) | |
1835 | goto err_out; | |
1836 | ||
a8d547bd | 1837 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
6be6de18 JG |
1838 | hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma, |
1839 | GFP_KERNEL); | |
1840 | if (!hisi_hba->iost) | |
1841 | goto err_out; | |
1842 | ||
a8d547bd | 1843 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
6be6de18 JG |
1844 | hisi_hba->breakpoint = dma_alloc_coherent(dev, s, |
1845 | &hisi_hba->breakpoint_dma, GFP_KERNEL); | |
1846 | if (!hisi_hba->breakpoint) | |
1847 | goto err_out; | |
1848 | ||
a8d547bd | 1849 | hisi_hba->slot_index_count = max_command_entries; |
433f5696 | 1850 | s = hisi_hba->slot_index_count / BITS_PER_BYTE; |
257efd1f JG |
1851 | hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL); |
1852 | if (!hisi_hba->slot_index_tags) | |
1853 | goto err_out; | |
1854 | ||
6be6de18 JG |
1855 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; |
1856 | hisi_hba->initial_fis = dma_alloc_coherent(dev, s, | |
1857 | &hisi_hba->initial_fis_dma, GFP_KERNEL); | |
1858 | if (!hisi_hba->initial_fis) | |
1859 | goto err_out; | |
6be6de18 | 1860 | |
3297ded1 | 1861 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
6be6de18 JG |
1862 | hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s, |
1863 | &hisi_hba->sata_breakpoint_dma, GFP_KERNEL); | |
1864 | if (!hisi_hba->sata_breakpoint) | |
1865 | goto err_out; | |
06ec0fb9 | 1866 | hisi_sas_init_mem(hisi_hba); |
6be6de18 | 1867 | |
257efd1f JG |
1868 | hisi_sas_slot_index_init(hisi_hba); |
1869 | ||
7e9080e1 JG |
1870 | hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); |
1871 | if (!hisi_hba->wq) { | |
1872 | dev_err(dev, "sas_alloc: failed to create workqueue\n"); | |
1873 | goto err_out; | |
1874 | } | |
1875 | ||
6be6de18 JG |
1876 | return 0; |
1877 | err_out: | |
1878 | return -ENOMEM; | |
1879 | } | |
e21fe3a5 | 1880 | EXPORT_SYMBOL_GPL(hisi_sas_alloc); |
6be6de18 | 1881 | |
e21fe3a5 | 1882 | void hisi_sas_free(struct hisi_hba *hisi_hba) |
89d53322 | 1883 | { |
11b75249 | 1884 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1885 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
89d53322 JG |
1886 | |
1887 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1888 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1889 | if (hisi_hba->cmd_hdr[i]) | |
1890 | dma_free_coherent(dev, s, | |
1891 | hisi_hba->cmd_hdr[i], | |
1892 | hisi_hba->cmd_hdr_dma[i]); | |
1893 | ||
1894 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1895 | if (hisi_hba->complete_hdr[i]) | |
1896 | dma_free_coherent(dev, s, | |
1897 | hisi_hba->complete_hdr[i], | |
1898 | hisi_hba->complete_hdr_dma[i]); | |
1899 | } | |
1900 | ||
f557e32c | 1901 | dma_pool_destroy(hisi_hba->buffer_pool); |
89d53322 JG |
1902 | |
1903 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
1904 | if (hisi_hba->itct) | |
1905 | dma_free_coherent(dev, s, | |
1906 | hisi_hba->itct, hisi_hba->itct_dma); | |
1907 | ||
a8d547bd | 1908 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
89d53322 JG |
1909 | if (hisi_hba->iost) |
1910 | dma_free_coherent(dev, s, | |
1911 | hisi_hba->iost, hisi_hba->iost_dma); | |
1912 | ||
a8d547bd | 1913 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
89d53322 JG |
1914 | if (hisi_hba->breakpoint) |
1915 | dma_free_coherent(dev, s, | |
1916 | hisi_hba->breakpoint, | |
1917 | hisi_hba->breakpoint_dma); | |
1918 | ||
1919 | ||
1920 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; | |
1921 | if (hisi_hba->initial_fis) | |
1922 | dma_free_coherent(dev, s, | |
1923 | hisi_hba->initial_fis, | |
1924 | hisi_hba->initial_fis_dma); | |
1925 | ||
3297ded1 | 1926 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
89d53322 JG |
1927 | if (hisi_hba->sata_breakpoint) |
1928 | dma_free_coherent(dev, s, | |
1929 | hisi_hba->sata_breakpoint, | |
1930 | hisi_hba->sata_breakpoint_dma); | |
1931 | ||
7e9080e1 JG |
1932 | if (hisi_hba->wq) |
1933 | destroy_workqueue(hisi_hba->wq); | |
89d53322 | 1934 | } |
e21fe3a5 | 1935 | EXPORT_SYMBOL_GPL(hisi_sas_free); |
6be6de18 | 1936 | |
b4241f0f | 1937 | void hisi_sas_rst_work_handler(struct work_struct *work) |
06ec0fb9 XC |
1938 | { |
1939 | struct hisi_hba *hisi_hba = | |
1940 | container_of(work, struct hisi_hba, rst_work); | |
1941 | ||
1942 | hisi_sas_controller_reset(hisi_hba); | |
1943 | } | |
b4241f0f | 1944 | EXPORT_SYMBOL_GPL(hisi_sas_rst_work_handler); |
06ec0fb9 | 1945 | |
e402acdb XT |
1946 | void hisi_sas_sync_rst_work_handler(struct work_struct *work) |
1947 | { | |
1948 | struct hisi_sas_rst *rst = | |
1949 | container_of(work, struct hisi_sas_rst, work); | |
1950 | ||
1951 | if (!hisi_sas_controller_reset(rst->hisi_hba)) | |
1952 | rst->done = true; | |
1953 | complete(rst->completion); | |
1954 | } | |
1955 | EXPORT_SYMBOL_GPL(hisi_sas_sync_rst_work_handler); | |
1956 | ||
0fa24c19 | 1957 | int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba) |
7eb7869f | 1958 | { |
0fa24c19 JG |
1959 | struct device *dev = hisi_hba->dev; |
1960 | struct platform_device *pdev = hisi_hba->platform_dev; | |
1961 | struct device_node *np = pdev ? pdev->dev.of_node : NULL; | |
3bc45af8 | 1962 | struct clk *refclk; |
7eb7869f | 1963 | |
4d558c77 | 1964 | if (device_property_read_u8_array(dev, "sas-addr", hisi_hba->sas_addr, |
0fa24c19 JG |
1965 | SAS_ADDR_SIZE)) { |
1966 | dev_err(dev, "could not get property sas-addr\n"); | |
1967 | return -ENOENT; | |
1968 | } | |
e26b2f40 | 1969 | |
4d558c77 | 1970 | if (np) { |
0fa24c19 JG |
1971 | /* |
1972 | * These properties are only required for platform device-based | |
1973 | * controller with DT firmware. | |
1974 | */ | |
4d558c77 JG |
1975 | hisi_hba->ctrl = syscon_regmap_lookup_by_phandle(np, |
1976 | "hisilicon,sas-syscon"); | |
0fa24c19 JG |
1977 | if (IS_ERR(hisi_hba->ctrl)) { |
1978 | dev_err(dev, "could not get syscon\n"); | |
1979 | return -ENOENT; | |
1980 | } | |
e26b2f40 | 1981 | |
4d558c77 | 1982 | if (device_property_read_u32(dev, "ctrl-reset-reg", |
0fa24c19 JG |
1983 | &hisi_hba->ctrl_reset_reg)) { |
1984 | dev_err(dev, | |
1985 | "could not get property ctrl-reset-reg\n"); | |
1986 | return -ENOENT; | |
1987 | } | |
e26b2f40 | 1988 | |
4d558c77 | 1989 | if (device_property_read_u32(dev, "ctrl-reset-sts-reg", |
0fa24c19 JG |
1990 | &hisi_hba->ctrl_reset_sts_reg)) { |
1991 | dev_err(dev, | |
1992 | "could not get property ctrl-reset-sts-reg\n"); | |
1993 | return -ENOENT; | |
1994 | } | |
e26b2f40 | 1995 | |
4d558c77 | 1996 | if (device_property_read_u32(dev, "ctrl-clock-ena-reg", |
0fa24c19 JG |
1997 | &hisi_hba->ctrl_clock_ena_reg)) { |
1998 | dev_err(dev, | |
1999 | "could not get property ctrl-clock-ena-reg\n"); | |
2000 | return -ENOENT; | |
2001 | } | |
4d558c77 JG |
2002 | } |
2003 | ||
0fa24c19 | 2004 | refclk = devm_clk_get(dev, NULL); |
3bc45af8 | 2005 | if (IS_ERR(refclk)) |
87e287c1 | 2006 | dev_dbg(dev, "no ref clk property\n"); |
3bc45af8 JG |
2007 | else |
2008 | hisi_hba->refclk_frequency_mhz = clk_get_rate(refclk) / 1000000; | |
2009 | ||
0fa24c19 JG |
2010 | if (device_property_read_u32(dev, "phy-count", &hisi_hba->n_phy)) { |
2011 | dev_err(dev, "could not get property phy-count\n"); | |
2012 | return -ENOENT; | |
2013 | } | |
e26b2f40 | 2014 | |
4d558c77 | 2015 | if (device_property_read_u32(dev, "queue-count", |
0fa24c19 JG |
2016 | &hisi_hba->queue_count)) { |
2017 | dev_err(dev, "could not get property queue-count\n"); | |
2018 | return -ENOENT; | |
2019 | } | |
2020 | ||
2021 | return 0; | |
2022 | } | |
2023 | EXPORT_SYMBOL_GPL(hisi_sas_get_fw_info); | |
2024 | ||
2025 | static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev, | |
2026 | const struct hisi_sas_hw *hw) | |
2027 | { | |
2028 | struct resource *res; | |
2029 | struct Scsi_Host *shost; | |
2030 | struct hisi_hba *hisi_hba; | |
2031 | struct device *dev = &pdev->dev; | |
2032 | ||
e21fe3a5 | 2033 | shost = scsi_host_alloc(hisi_sas_sht, sizeof(*hisi_hba)); |
0fa24c19 JG |
2034 | if (!shost) { |
2035 | dev_err(dev, "scsi host alloc failed\n"); | |
2036 | return NULL; | |
2037 | } | |
2038 | hisi_hba = shost_priv(shost); | |
2039 | ||
2040 | INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler); | |
2041 | hisi_hba->hw = hw; | |
2042 | hisi_hba->dev = dev; | |
2043 | hisi_hba->platform_dev = pdev; | |
2044 | hisi_hba->shost = shost; | |
2045 | SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; | |
2046 | ||
77570eed | 2047 | timer_setup(&hisi_hba->timer, NULL, 0); |
0fa24c19 JG |
2048 | |
2049 | if (hisi_sas_get_fw_info(hisi_hba) < 0) | |
e26b2f40 JG |
2050 | goto err_out; |
2051 | ||
a6f2c7ff JG |
2052 | if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) && |
2053 | dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) { | |
2054 | dev_err(dev, "No usable DMA addressing method\n"); | |
2055 | goto err_out; | |
2056 | } | |
2057 | ||
e26b2f40 JG |
2058 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
2059 | hisi_hba->regs = devm_ioremap_resource(dev, res); | |
2060 | if (IS_ERR(hisi_hba->regs)) | |
2061 | goto err_out; | |
2062 | ||
6379c560 XT |
2063 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
2064 | if (res) { | |
2065 | hisi_hba->sgpio_regs = devm_ioremap_resource(dev, res); | |
2066 | if (IS_ERR(hisi_hba->sgpio_regs)) | |
2067 | goto err_out; | |
2068 | } | |
2069 | ||
89d53322 JG |
2070 | if (hisi_sas_alloc(hisi_hba, shost)) { |
2071 | hisi_sas_free(hisi_hba); | |
6be6de18 | 2072 | goto err_out; |
89d53322 | 2073 | } |
6be6de18 | 2074 | |
7eb7869f JG |
2075 | return shost; |
2076 | err_out: | |
76aae5f6 | 2077 | scsi_host_put(shost); |
7eb7869f JG |
2078 | dev_err(dev, "shost alloc failed\n"); |
2079 | return NULL; | |
2080 | } | |
2081 | ||
e21fe3a5 | 2082 | void hisi_sas_init_add(struct hisi_hba *hisi_hba) |
5d74242e JG |
2083 | { |
2084 | int i; | |
2085 | ||
2086 | for (i = 0; i < hisi_hba->n_phy; i++) | |
2087 | memcpy(&hisi_hba->phy[i].dev_sas_addr, | |
2088 | hisi_hba->sas_addr, | |
2089 | SAS_ADDR_SIZE); | |
2090 | } | |
e21fe3a5 | 2091 | EXPORT_SYMBOL_GPL(hisi_sas_init_add); |
5d74242e | 2092 | |
7eb7869f JG |
2093 | int hisi_sas_probe(struct platform_device *pdev, |
2094 | const struct hisi_sas_hw *hw) | |
2095 | { | |
2096 | struct Scsi_Host *shost; | |
2097 | struct hisi_hba *hisi_hba; | |
2098 | struct device *dev = &pdev->dev; | |
2099 | struct asd_sas_phy **arr_phy; | |
2100 | struct asd_sas_port **arr_port; | |
2101 | struct sas_ha_struct *sha; | |
2102 | int rc, phy_nr, port_nr, i; | |
2103 | ||
2104 | shost = hisi_sas_shost_alloc(pdev, hw); | |
d37a0082 XT |
2105 | if (!shost) |
2106 | return -ENOMEM; | |
7eb7869f JG |
2107 | |
2108 | sha = SHOST_TO_SAS_HA(shost); | |
2109 | hisi_hba = shost_priv(shost); | |
2110 | platform_set_drvdata(pdev, sha); | |
50cb916f | 2111 | |
7eb7869f JG |
2112 | phy_nr = port_nr = hisi_hba->n_phy; |
2113 | ||
2114 | arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); | |
2115 | arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); | |
d37a0082 XT |
2116 | if (!arr_phy || !arr_port) { |
2117 | rc = -ENOMEM; | |
2118 | goto err_out_ha; | |
2119 | } | |
7eb7869f JG |
2120 | |
2121 | sha->sas_phy = arr_phy; | |
2122 | sha->sas_port = arr_port; | |
7eb7869f JG |
2123 | sha->lldd_ha = hisi_hba; |
2124 | ||
2125 | shost->transportt = hisi_sas_stt; | |
2126 | shost->max_id = HISI_SAS_MAX_DEVICES; | |
2127 | shost->max_lun = ~0; | |
2128 | shost->max_channel = 1; | |
2129 | shost->max_cmd_len = 16; | |
2130 | shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT); | |
a8d547bd JG |
2131 | shost->can_queue = hisi_hba->hw->max_command_entries; |
2132 | shost->cmd_per_lun = hisi_hba->hw->max_command_entries; | |
7eb7869f JG |
2133 | |
2134 | sha->sas_ha_name = DRV_NAME; | |
11b75249 | 2135 | sha->dev = hisi_hba->dev; |
7eb7869f JG |
2136 | sha->lldd_module = THIS_MODULE; |
2137 | sha->sas_addr = &hisi_hba->sas_addr[0]; | |
2138 | sha->num_phys = hisi_hba->n_phy; | |
2139 | sha->core.shost = hisi_hba->shost; | |
2140 | ||
2141 | for (i = 0; i < hisi_hba->n_phy; i++) { | |
2142 | sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; | |
2143 | sha->sas_port[i] = &hisi_hba->port[i].sas_port; | |
2144 | } | |
2145 | ||
5d74242e JG |
2146 | hisi_sas_init_add(hisi_hba); |
2147 | ||
7eb7869f JG |
2148 | rc = scsi_add_host(shost, &pdev->dev); |
2149 | if (rc) | |
2150 | goto err_out_ha; | |
2151 | ||
2152 | rc = sas_register_ha(sha); | |
2153 | if (rc) | |
2154 | goto err_out_register_ha; | |
2155 | ||
0757f041 XC |
2156 | rc = hisi_hba->hw->hw_init(hisi_hba); |
2157 | if (rc) | |
2158 | goto err_out_register_ha; | |
2159 | ||
7eb7869f JG |
2160 | scsi_scan_host(shost); |
2161 | ||
2162 | return 0; | |
2163 | ||
2164 | err_out_register_ha: | |
2165 | scsi_remove_host(shost); | |
2166 | err_out_ha: | |
d37a0082 | 2167 | hisi_sas_free(hisi_hba); |
76aae5f6 | 2168 | scsi_host_put(shost); |
7eb7869f JG |
2169 | return rc; |
2170 | } | |
2171 | EXPORT_SYMBOL_GPL(hisi_sas_probe); | |
2172 | ||
89d53322 JG |
2173 | int hisi_sas_remove(struct platform_device *pdev) |
2174 | { | |
2175 | struct sas_ha_struct *sha = platform_get_drvdata(pdev); | |
2176 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
d37a0082 | 2177 | struct Scsi_Host *shost = sha->core.shost; |
89d53322 | 2178 | |
5df41af4 XC |
2179 | if (timer_pending(&hisi_hba->timer)) |
2180 | del_timer(&hisi_hba->timer); | |
2181 | ||
89d53322 JG |
2182 | sas_unregister_ha(sha); |
2183 | sas_remove_host(sha->core.shost); | |
2184 | ||
2185 | hisi_sas_free(hisi_hba); | |
76aae5f6 | 2186 | scsi_host_put(shost); |
89d53322 JG |
2187 | return 0; |
2188 | } | |
2189 | EXPORT_SYMBOL_GPL(hisi_sas_remove); | |
2190 | ||
e8899fad JG |
2191 | static __init int hisi_sas_init(void) |
2192 | { | |
e8899fad JG |
2193 | hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); |
2194 | if (!hisi_sas_stt) | |
2195 | return -ENOMEM; | |
2196 | ||
2197 | return 0; | |
2198 | } | |
2199 | ||
2200 | static __exit void hisi_sas_exit(void) | |
2201 | { | |
2202 | sas_release_transport(hisi_sas_stt); | |
2203 | } | |
2204 | ||
2205 | module_init(hisi_sas_init); | |
2206 | module_exit(hisi_sas_exit); | |
2207 | ||
e8899fad JG |
2208 | MODULE_LICENSE("GPL"); |
2209 | MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); | |
2210 | MODULE_DESCRIPTION("HISILICON SAS controller driver"); | |
2211 | MODULE_ALIAS("platform:" DRV_NAME); |