Commit | Line | Data |
---|---|---|
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); |
cac9b2a2 | 25 | |
6c7bb8a1 XC |
26 | u8 hisi_sas_get_ata_protocol(u8 cmd, int direction) |
27 | { | |
28 | switch (cmd) { | |
29 | case ATA_CMD_FPDMA_WRITE: | |
30 | case ATA_CMD_FPDMA_READ: | |
31 | case ATA_CMD_FPDMA_RECV: | |
32 | case ATA_CMD_FPDMA_SEND: | |
33 | case ATA_CMD_NCQ_NON_DATA: | |
34 | return HISI_SAS_SATA_PROTOCOL_FPDMA; | |
35 | ||
36 | case ATA_CMD_DOWNLOAD_MICRO: | |
37 | case ATA_CMD_ID_ATA: | |
38 | case ATA_CMD_PMP_READ: | |
39 | case ATA_CMD_READ_LOG_EXT: | |
40 | case ATA_CMD_PIO_READ: | |
41 | case ATA_CMD_PIO_READ_EXT: | |
42 | case ATA_CMD_PMP_WRITE: | |
43 | case ATA_CMD_WRITE_LOG_EXT: | |
44 | case ATA_CMD_PIO_WRITE: | |
45 | case ATA_CMD_PIO_WRITE_EXT: | |
46 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
47 | ||
48 | case ATA_CMD_DSM: | |
49 | case ATA_CMD_DOWNLOAD_MICRO_DMA: | |
50 | case ATA_CMD_PMP_READ_DMA: | |
51 | case ATA_CMD_PMP_WRITE_DMA: | |
52 | case ATA_CMD_READ: | |
53 | case ATA_CMD_READ_EXT: | |
54 | case ATA_CMD_READ_LOG_DMA_EXT: | |
55 | case ATA_CMD_READ_STREAM_DMA_EXT: | |
56 | case ATA_CMD_TRUSTED_RCV_DMA: | |
57 | case ATA_CMD_TRUSTED_SND_DMA: | |
58 | case ATA_CMD_WRITE: | |
59 | case ATA_CMD_WRITE_EXT: | |
60 | case ATA_CMD_WRITE_FUA_EXT: | |
61 | case ATA_CMD_WRITE_QUEUED: | |
62 | case ATA_CMD_WRITE_LOG_DMA_EXT: | |
63 | case ATA_CMD_WRITE_STREAM_DMA_EXT: | |
c3fe8a2b | 64 | case ATA_CMD_ZAC_MGMT_IN: |
6c7bb8a1 XC |
65 | return HISI_SAS_SATA_PROTOCOL_DMA; |
66 | ||
67 | case ATA_CMD_CHK_POWER: | |
68 | case ATA_CMD_DEV_RESET: | |
69 | case ATA_CMD_EDD: | |
70 | case ATA_CMD_FLUSH: | |
71 | case ATA_CMD_FLUSH_EXT: | |
72 | case ATA_CMD_VERIFY: | |
73 | case ATA_CMD_VERIFY_EXT: | |
74 | case ATA_CMD_SET_FEATURES: | |
75 | case ATA_CMD_STANDBY: | |
76 | case ATA_CMD_STANDBYNOW1: | |
c3fe8a2b | 77 | case ATA_CMD_ZAC_MGMT_OUT: |
6c7bb8a1 XC |
78 | return HISI_SAS_SATA_PROTOCOL_NONDATA; |
79 | default: | |
80 | if (direction == DMA_NONE) | |
81 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
82 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
83 | } | |
84 | } | |
85 | EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol); | |
86 | ||
75904077 XC |
87 | void hisi_sas_sata_done(struct sas_task *task, |
88 | struct hisi_sas_slot *slot) | |
89 | { | |
90 | struct task_status_struct *ts = &task->task_status; | |
91 | struct ata_task_resp *resp = (struct ata_task_resp *)ts->buf; | |
f557e32c XT |
92 | struct hisi_sas_status_buffer *status_buf = |
93 | hisi_sas_status_buf_addr_mem(slot); | |
94 | u8 *iu = &status_buf->iu[0]; | |
95 | struct dev_to_host_fis *d2h = (struct dev_to_host_fis *)iu; | |
75904077 XC |
96 | |
97 | resp->frame_len = sizeof(struct dev_to_host_fis); | |
98 | memcpy(&resp->ending_fis[0], d2h, sizeof(struct dev_to_host_fis)); | |
99 | ||
100 | ts->buf_valid_size = sizeof(*resp); | |
101 | } | |
102 | EXPORT_SYMBOL_GPL(hisi_sas_sata_done); | |
103 | ||
318913c6 XC |
104 | int hisi_sas_get_ncq_tag(struct sas_task *task, u32 *tag) |
105 | { | |
106 | struct ata_queued_cmd *qc = task->uldd_task; | |
107 | ||
108 | if (qc) { | |
109 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || | |
110 | qc->tf.command == ATA_CMD_FPDMA_READ) { | |
111 | *tag = qc->tag; | |
112 | return 1; | |
113 | } | |
114 | } | |
115 | return 0; | |
116 | } | |
117 | EXPORT_SYMBOL_GPL(hisi_sas_get_ncq_tag); | |
118 | ||
42e7a693 JG |
119 | static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device) |
120 | { | |
121 | return device->port->ha->lldd_ha; | |
122 | } | |
123 | ||
2e244f0f JG |
124 | struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port) |
125 | { | |
126 | return container_of(sas_port, struct hisi_sas_port, sas_port); | |
127 | } | |
128 | EXPORT_SYMBOL_GPL(to_hisi_sas_port); | |
129 | ||
a25d0d3d XC |
130 | void hisi_sas_stop_phys(struct hisi_hba *hisi_hba) |
131 | { | |
132 | int phy_no; | |
133 | ||
134 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) | |
135 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
136 | } | |
137 | EXPORT_SYMBOL_GPL(hisi_sas_stop_phys); | |
138 | ||
257efd1f JG |
139 | static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) |
140 | { | |
141 | void *bitmap = hisi_hba->slot_index_tags; | |
142 | ||
143 | clear_bit(slot_idx, bitmap); | |
144 | } | |
145 | ||
42e7a693 JG |
146 | static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx) |
147 | { | |
148 | hisi_sas_slot_index_clear(hisi_hba, slot_idx); | |
149 | } | |
150 | ||
151 | static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx) | |
152 | { | |
153 | void *bitmap = hisi_hba->slot_index_tags; | |
154 | ||
155 | set_bit(slot_idx, bitmap); | |
156 | } | |
157 | ||
158 | static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, int *slot_idx) | |
159 | { | |
160 | unsigned int index; | |
161 | void *bitmap = hisi_hba->slot_index_tags; | |
162 | ||
163 | index = find_first_zero_bit(bitmap, hisi_hba->slot_index_count); | |
164 | if (index >= hisi_hba->slot_index_count) | |
165 | return -SAS_QUEUE_FULL; | |
166 | hisi_sas_slot_index_set(hisi_hba, index); | |
167 | *slot_idx = index; | |
168 | return 0; | |
169 | } | |
170 | ||
257efd1f JG |
171 | static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) |
172 | { | |
173 | int i; | |
174 | ||
175 | for (i = 0; i < hisi_hba->slot_index_count; ++i) | |
176 | hisi_sas_slot_index_clear(hisi_hba, i); | |
177 | } | |
27a3f229 JG |
178 | |
179 | void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, | |
180 | struct hisi_sas_slot *slot) | |
181 | { | |
27a3f229 | 182 | |
d3c4dd4e | 183 | if (task) { |
11b75249 | 184 | struct device *dev = hisi_hba->dev; |
d3c4dd4e JG |
185 | struct domain_device *device = task->dev; |
186 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
27a3f229 | 187 | |
d3c4dd4e JG |
188 | if (!sas_protocol_ata(task->task_proto)) |
189 | if (slot->n_elem) | |
190 | dma_unmap_sg(dev, task->scatter, slot->n_elem, | |
191 | task->data_dir); | |
192 | ||
193 | task->lldd_task = NULL; | |
194 | ||
195 | if (sas_dev) | |
196 | atomic64_dec(&sas_dev->running_req); | |
197 | } | |
27a3f229 | 198 | |
f557e32c XT |
199 | if (slot->buf) |
200 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, slot->buf_dma); | |
27a3f229 | 201 | |
27a3f229 JG |
202 | |
203 | list_del_init(&slot->entry); | |
27a3f229 JG |
204 | slot->task = NULL; |
205 | slot->port = NULL; | |
206 | hisi_sas_slot_index_free(hisi_hba, slot->idx); | |
d3c4dd4e | 207 | |
59ba49f9 | 208 | /* slot memory is fully zeroed when it is reused */ |
27a3f229 JG |
209 | } |
210 | EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free); | |
211 | ||
66ee999b JG |
212 | static int hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba, |
213 | struct hisi_sas_slot *slot) | |
214 | { | |
215 | return hisi_hba->hw->prep_smp(hisi_hba, slot); | |
216 | } | |
217 | ||
42e7a693 JG |
218 | static int hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba, |
219 | struct hisi_sas_slot *slot, int is_tmf, | |
220 | struct hisi_sas_tmf_task *tmf) | |
221 | { | |
222 | return hisi_hba->hw->prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
223 | } | |
224 | ||
6f2ff1a1 JG |
225 | static int hisi_sas_task_prep_ata(struct hisi_hba *hisi_hba, |
226 | struct hisi_sas_slot *slot) | |
227 | { | |
228 | return hisi_hba->hw->prep_stp(hisi_hba, slot); | |
229 | } | |
230 | ||
441c2740 JG |
231 | static int hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba, |
232 | struct hisi_sas_slot *slot, | |
233 | int device_id, int abort_flag, int tag_to_abort) | |
234 | { | |
235 | return hisi_hba->hw->prep_abort(hisi_hba, slot, | |
236 | device_id, abort_flag, tag_to_abort); | |
237 | } | |
238 | ||
cac9b2a2 JG |
239 | /* |
240 | * This function will issue an abort TMF regardless of whether the | |
241 | * task is in the sdev or not. Then it will do the task complete | |
242 | * cleanup and callbacks. | |
243 | */ | |
244 | static void hisi_sas_slot_abort(struct work_struct *work) | |
245 | { | |
246 | struct hisi_sas_slot *abort_slot = | |
247 | container_of(work, struct hisi_sas_slot, abort_slot); | |
248 | struct sas_task *task = abort_slot->task; | |
249 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
250 | struct scsi_cmnd *cmnd = task->uldd_task; | |
251 | struct hisi_sas_tmf_task tmf_task; | |
cac9b2a2 | 252 | struct scsi_lun lun; |
11b75249 | 253 | struct device *dev = hisi_hba->dev; |
cac9b2a2 | 254 | int tag = abort_slot->idx; |
da7b66e7 | 255 | unsigned long flags; |
cac9b2a2 JG |
256 | |
257 | if (!(task->task_proto & SAS_PROTOCOL_SSP)) { | |
258 | dev_err(dev, "cannot abort slot for non-ssp task\n"); | |
259 | goto out; | |
260 | } | |
261 | ||
262 | int_to_scsilun(cmnd->device->lun, &lun); | |
263 | tmf_task.tmf = TMF_ABORT_TASK; | |
264 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
265 | ||
266 | hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, &tmf_task); | |
267 | out: | |
268 | /* Do cleanup for this task */ | |
da7b66e7 | 269 | spin_lock_irqsave(&hisi_hba->lock, flags); |
cac9b2a2 | 270 | hisi_sas_slot_task_free(hisi_hba, task, abort_slot); |
da7b66e7 | 271 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
cac9b2a2 JG |
272 | if (task->task_done) |
273 | task->task_done(task); | |
cac9b2a2 JG |
274 | } |
275 | ||
b1a49412 XC |
276 | static int hisi_sas_task_prep(struct sas_task *task, struct hisi_sas_dq |
277 | *dq, int is_tmf, struct hisi_sas_tmf_task *tmf, | |
278 | int *pass) | |
42e7a693 | 279 | { |
b1a49412 | 280 | struct hisi_hba *hisi_hba = dq->hisi_hba; |
42e7a693 JG |
281 | struct domain_device *device = task->dev; |
282 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
283 | struct hisi_sas_port *port; | |
284 | struct hisi_sas_slot *slot; | |
285 | struct hisi_sas_cmd_hdr *cmd_hdr_base; | |
2e244f0f | 286 | struct asd_sas_port *sas_port = device->port; |
11b75249 | 287 | struct device *dev = hisi_hba->dev; |
42e7a693 | 288 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
54c9dd2d | 289 | unsigned long flags; |
42e7a693 | 290 | |
2e244f0f | 291 | if (!sas_port) { |
42e7a693 JG |
292 | struct task_status_struct *ts = &task->task_status; |
293 | ||
294 | ts->resp = SAS_TASK_UNDELIVERED; | |
295 | ts->stat = SAS_PHY_DOWN; | |
296 | /* | |
297 | * libsas will use dev->port, should | |
298 | * not call task_done for sata | |
299 | */ | |
300 | if (device->dev_type != SAS_SATA_DEV) | |
301 | task->task_done(task); | |
ddabca21 | 302 | return SAS_PHY_DOWN; |
42e7a693 JG |
303 | } |
304 | ||
305 | if (DEV_IS_GONE(sas_dev)) { | |
306 | if (sas_dev) | |
ad604832 | 307 | dev_info(dev, "task prep: device %d not ready\n", |
42e7a693 JG |
308 | sas_dev->device_id); |
309 | else | |
310 | dev_info(dev, "task prep: device %016llx not ready\n", | |
311 | SAS_ADDR(device->sas_addr)); | |
312 | ||
ddabca21 | 313 | return SAS_PHY_DOWN; |
42e7a693 | 314 | } |
2e244f0f JG |
315 | |
316 | port = to_hisi_sas_port(sas_port); | |
9859f24e | 317 | if (port && !port->port_attached) { |
09fe9ecb | 318 | dev_info(dev, "task prep: %s port%d not attach device\n", |
6073b771 | 319 | (dev_is_sata(device)) ? |
09fe9ecb JG |
320 | "SATA/STP" : "SAS", |
321 | device->port->id); | |
322 | ||
323 | return SAS_PHY_DOWN; | |
42e7a693 JG |
324 | } |
325 | ||
326 | if (!sas_protocol_ata(task->task_proto)) { | |
327 | if (task->num_scatter) { | |
328 | n_elem = dma_map_sg(dev, task->scatter, | |
329 | task->num_scatter, task->data_dir); | |
330 | if (!n_elem) { | |
331 | rc = -ENOMEM; | |
332 | goto prep_out; | |
333 | } | |
334 | } | |
335 | } else | |
336 | n_elem = task->num_scatter; | |
337 | ||
b1a49412 | 338 | spin_lock_irqsave(&hisi_hba->lock, flags); |
685b6d6e JG |
339 | if (hisi_hba->hw->slot_index_alloc) |
340 | rc = hisi_hba->hw->slot_index_alloc(hisi_hba, &slot_idx, | |
341 | device); | |
342 | else | |
343 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); | |
b1a49412 XC |
344 | if (rc) { |
345 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
42e7a693 | 346 | goto err_out; |
b1a49412 XC |
347 | } |
348 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
349 | ||
350 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
42e7a693 JG |
351 | if (rc) |
352 | goto err_out_tag; | |
353 | ||
b1a49412 XC |
354 | dlvry_queue = dq->id; |
355 | dlvry_queue_slot = dq->wr_point; | |
42e7a693 JG |
356 | slot = &hisi_hba->slot_info[slot_idx]; |
357 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
358 | ||
359 | slot->idx = slot_idx; | |
360 | slot->n_elem = n_elem; | |
361 | slot->dlvry_queue = dlvry_queue; | |
362 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
363 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
364 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
365 | slot->task = task; | |
366 | slot->port = port; | |
367 | task->lldd_task = slot; | |
cac9b2a2 | 368 | INIT_WORK(&slot->abort_slot, hisi_sas_slot_abort); |
42e7a693 | 369 | |
f557e32c XT |
370 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
371 | GFP_ATOMIC, &slot->buf_dma); | |
372 | if (!slot->buf) { | |
9c9d18e7 | 373 | rc = -ENOMEM; |
42e7a693 | 374 | goto err_out_slot_buf; |
9c9d18e7 | 375 | } |
42e7a693 | 376 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
f557e32c XT |
377 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
378 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
42e7a693 JG |
379 | |
380 | switch (task->task_proto) { | |
66ee999b JG |
381 | case SAS_PROTOCOL_SMP: |
382 | rc = hisi_sas_task_prep_smp(hisi_hba, slot); | |
383 | break; | |
42e7a693 JG |
384 | case SAS_PROTOCOL_SSP: |
385 | rc = hisi_sas_task_prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
386 | break; | |
387 | case SAS_PROTOCOL_SATA: | |
388 | case SAS_PROTOCOL_STP: | |
389 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
6f2ff1a1 JG |
390 | rc = hisi_sas_task_prep_ata(hisi_hba, slot); |
391 | break; | |
42e7a693 JG |
392 | default: |
393 | dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n", | |
394 | task->task_proto); | |
395 | rc = -EINVAL; | |
396 | break; | |
397 | } | |
398 | ||
399 | if (rc) { | |
400 | dev_err(dev, "task prep: rc = 0x%x\n", rc); | |
f557e32c | 401 | goto err_out_buf; |
42e7a693 JG |
402 | } |
403 | ||
405314df | 404 | list_add_tail(&slot->entry, &sas_dev->list); |
54c9dd2d | 405 | spin_lock_irqsave(&task->task_state_lock, flags); |
42e7a693 | 406 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 407 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
42e7a693 | 408 | |
b1a49412 | 409 | dq->slot_prep = slot; |
42e7a693 | 410 | |
f696cc32 | 411 | atomic64_inc(&sas_dev->running_req); |
42e7a693 JG |
412 | ++(*pass); |
413 | ||
9c9d18e7 | 414 | return 0; |
42e7a693 | 415 | |
f557e32c XT |
416 | err_out_buf: |
417 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
418 | slot->buf_dma); | |
42e7a693 JG |
419 | err_out_slot_buf: |
420 | /* Nothing to be done */ | |
421 | err_out_tag: | |
b1a49412 | 422 | spin_lock_irqsave(&hisi_hba->lock, flags); |
42e7a693 | 423 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 | 424 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
42e7a693 JG |
425 | err_out: |
426 | dev_err(dev, "task prep: failed[%d]!\n", rc); | |
427 | if (!sas_protocol_ata(task->task_proto)) | |
428 | if (n_elem) | |
429 | dma_unmap_sg(dev, task->scatter, n_elem, | |
430 | task->data_dir); | |
431 | prep_out: | |
432 | return rc; | |
433 | } | |
434 | ||
435 | static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, | |
436 | int is_tmf, struct hisi_sas_tmf_task *tmf) | |
437 | { | |
438 | u32 rc; | |
439 | u32 pass = 0; | |
440 | unsigned long flags; | |
441 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
11b75249 | 442 | struct device *dev = hisi_hba->dev; |
b1a49412 XC |
443 | struct domain_device *device = task->dev; |
444 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
445 | struct hisi_sas_dq *dq = sas_dev->dq; | |
42e7a693 | 446 | |
917d3bda | 447 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
448 | return -EINVAL; |
449 | ||
42e7a693 | 450 | /* protect task_prep and start_delivery sequence */ |
b1a49412 XC |
451 | spin_lock_irqsave(&dq->lock, flags); |
452 | rc = hisi_sas_task_prep(task, dq, is_tmf, tmf, &pass); | |
42e7a693 JG |
453 | if (rc) |
454 | dev_err(dev, "task exec: failed[%d]!\n", rc); | |
455 | ||
456 | if (likely(pass)) | |
b1a49412 XC |
457 | hisi_hba->hw->start_delivery(dq); |
458 | spin_unlock_irqrestore(&dq->lock, flags); | |
42e7a693 JG |
459 | |
460 | return rc; | |
461 | } | |
257efd1f | 462 | |
66139921 JG |
463 | static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no) |
464 | { | |
465 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
466 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
467 | struct sas_ha_struct *sas_ha; | |
468 | ||
469 | if (!phy->phy_attached) | |
470 | return; | |
471 | ||
472 | sas_ha = &hisi_hba->sha; | |
473 | sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); | |
474 | ||
475 | if (sas_phy->phy) { | |
476 | struct sas_phy *sphy = sas_phy->phy; | |
477 | ||
478 | sphy->negotiated_linkrate = sas_phy->linkrate; | |
66139921 | 479 | sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; |
2ae75787 XC |
480 | sphy->maximum_linkrate_hw = |
481 | hisi_hba->hw->phy_get_max_linkrate(); | |
482 | if (sphy->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
483 | sphy->minimum_linkrate = phy->minimum_linkrate; | |
484 | ||
485 | if (sphy->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
486 | sphy->maximum_linkrate = phy->maximum_linkrate; | |
66139921 JG |
487 | } |
488 | ||
489 | if (phy->phy_type & PORT_TYPE_SAS) { | |
490 | struct sas_identify_frame *id; | |
491 | ||
492 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
493 | id->dev_type = phy->identify.device_type; | |
494 | id->initiator_bits = SAS_PROTOCOL_ALL; | |
495 | id->target_bits = phy->identify.target_port_protocols; | |
496 | } else if (phy->phy_type & PORT_TYPE_SATA) { | |
497 | /*Nothing*/ | |
498 | } | |
499 | ||
500 | sas_phy->frame_rcvd_size = phy->frame_rcvd_size; | |
501 | sas_ha->notify_port_event(sas_phy, PORTE_BYTES_DMAED); | |
502 | } | |
503 | ||
abda97c2 JG |
504 | static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) |
505 | { | |
506 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
507 | struct hisi_sas_device *sas_dev = NULL; | |
508 | int i; | |
509 | ||
510 | spin_lock(&hisi_hba->lock); | |
511 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
512 | if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) { | |
b1a49412 XC |
513 | int queue = i % hisi_hba->queue_count; |
514 | struct hisi_sas_dq *dq = &hisi_hba->dq[queue]; | |
515 | ||
abda97c2 JG |
516 | hisi_hba->devices[i].device_id = i; |
517 | sas_dev = &hisi_hba->devices[i]; | |
518 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
519 | sas_dev->dev_type = device->dev_type; | |
520 | sas_dev->hisi_hba = hisi_hba; | |
521 | sas_dev->sas_device = device; | |
b1a49412 | 522 | sas_dev->dq = dq; |
405314df | 523 | INIT_LIST_HEAD(&hisi_hba->devices[i].list); |
abda97c2 JG |
524 | break; |
525 | } | |
526 | } | |
527 | spin_unlock(&hisi_hba->lock); | |
528 | ||
529 | return sas_dev; | |
530 | } | |
531 | ||
532 | static int hisi_sas_dev_found(struct domain_device *device) | |
533 | { | |
534 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
535 | struct domain_device *parent_dev = device->parent; | |
536 | struct hisi_sas_device *sas_dev; | |
11b75249 | 537 | struct device *dev = hisi_hba->dev; |
abda97c2 | 538 | |
685b6d6e JG |
539 | if (hisi_hba->hw->alloc_dev) |
540 | sas_dev = hisi_hba->hw->alloc_dev(device); | |
541 | else | |
542 | sas_dev = hisi_sas_alloc_dev(device); | |
abda97c2 JG |
543 | if (!sas_dev) { |
544 | dev_err(dev, "fail alloc dev: max support %d devices\n", | |
545 | HISI_SAS_MAX_DEVICES); | |
546 | return -EINVAL; | |
547 | } | |
548 | ||
549 | device->lldd_dev = sas_dev; | |
550 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); | |
551 | ||
552 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { | |
553 | int phy_no; | |
554 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
555 | struct ex_phy *phy; | |
556 | ||
557 | for (phy_no = 0; phy_no < phy_num; phy_no++) { | |
558 | phy = &parent_dev->ex_dev.ex_phy[phy_no]; | |
559 | if (SAS_ADDR(phy->attached_sas_addr) == | |
560 | SAS_ADDR(device->sas_addr)) { | |
561 | sas_dev->attached_phy = phy_no; | |
562 | break; | |
563 | } | |
564 | } | |
565 | ||
566 | if (phy_no == phy_num) { | |
567 | dev_info(dev, "dev found: no attached " | |
568 | "dev:%016llx at ex:%016llx\n", | |
569 | SAS_ADDR(device->sas_addr), | |
570 | SAS_ADDR(parent_dev->sas_addr)); | |
571 | return -EINVAL; | |
572 | } | |
573 | } | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
31eec8a6 JG |
578 | static int hisi_sas_slave_configure(struct scsi_device *sdev) |
579 | { | |
580 | struct domain_device *dev = sdev_to_domain_dev(sdev); | |
581 | int ret = sas_slave_configure(sdev); | |
582 | ||
583 | if (ret) | |
584 | return ret; | |
585 | if (!dev_is_sata(dev)) | |
586 | sas_change_queue_depth(sdev, 64); | |
587 | ||
588 | return 0; | |
589 | } | |
590 | ||
701f75ec JG |
591 | static void hisi_sas_scan_start(struct Scsi_Host *shost) |
592 | { | |
593 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
701f75ec | 594 | |
396b8044 | 595 | hisi_hba->hw->phys_init(hisi_hba); |
701f75ec JG |
596 | } |
597 | ||
598 | static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
599 | { | |
600 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
601 | struct sas_ha_struct *sha = &hisi_hba->sha; | |
602 | ||
396b8044 JG |
603 | /* Wait for PHY up interrupt to occur */ |
604 | if (time < HZ) | |
701f75ec JG |
605 | return 0; |
606 | ||
607 | sas_drain_work(sha); | |
608 | return 1; | |
609 | } | |
610 | ||
66139921 JG |
611 | static void hisi_sas_phyup_work(struct work_struct *work) |
612 | { | |
613 | struct hisi_sas_phy *phy = | |
614 | container_of(work, struct hisi_sas_phy, phyup_ws); | |
615 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
616 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
617 | int phy_no = sas_phy->id; | |
618 | ||
619 | hisi_hba->hw->sl_notify(hisi_hba, phy_no); /* This requires a sleep */ | |
620 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
621 | } | |
976867e6 JG |
622 | |
623 | static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no) | |
624 | { | |
625 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
626 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
627 | ||
628 | phy->hisi_hba = hisi_hba; | |
629 | phy->port = NULL; | |
630 | init_timer(&phy->timer); | |
631 | sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0; | |
632 | sas_phy->class = SAS; | |
633 | sas_phy->iproto = SAS_PROTOCOL_ALL; | |
634 | sas_phy->tproto = 0; | |
635 | sas_phy->type = PHY_TYPE_PHYSICAL; | |
636 | sas_phy->role = PHY_ROLE_INITIATOR; | |
637 | sas_phy->oob_mode = OOB_NOT_CONNECTED; | |
638 | sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; | |
639 | sas_phy->id = phy_no; | |
640 | sas_phy->sas_addr = &hisi_hba->sas_addr[0]; | |
641 | sas_phy->frame_rcvd = &phy->frame_rcvd[0]; | |
642 | sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata; | |
643 | sas_phy->lldd_phy = phy; | |
66139921 JG |
644 | |
645 | INIT_WORK(&phy->phyup_ws, hisi_sas_phyup_work); | |
976867e6 JG |
646 | } |
647 | ||
184a4635 JG |
648 | static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy) |
649 | { | |
650 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
651 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
652 | struct hisi_sas_phy *phy = sas_phy->lldd_phy; | |
653 | struct asd_sas_port *sas_port = sas_phy->port; | |
2e244f0f | 654 | struct hisi_sas_port *port = to_hisi_sas_port(sas_port); |
184a4635 JG |
655 | unsigned long flags; |
656 | ||
657 | if (!sas_port) | |
658 | return; | |
659 | ||
660 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
661 | port->port_attached = 1; | |
662 | port->id = phy->port_id; | |
663 | phy->port = port; | |
664 | sas_port->lldd_port = port; | |
665 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
666 | } | |
667 | ||
d3c4dd4e | 668 | static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, struct sas_task *task, |
405314df | 669 | struct hisi_sas_slot *slot) |
184a4635 | 670 | { |
d3c4dd4e JG |
671 | if (task) { |
672 | unsigned long flags; | |
673 | struct task_status_struct *ts; | |
184a4635 | 674 | |
d3c4dd4e | 675 | ts = &task->task_status; |
184a4635 | 676 | |
d3c4dd4e JG |
677 | ts->resp = SAS_TASK_COMPLETE; |
678 | ts->stat = SAS_ABORTED_TASK; | |
679 | spin_lock_irqsave(&task->task_state_lock, flags); | |
680 | task->task_state_flags &= | |
681 | ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); | |
682 | task->task_state_flags |= SAS_TASK_STATE_DONE; | |
683 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
684 | } | |
184a4635 | 685 | |
405314df | 686 | hisi_sas_slot_task_free(hisi_hba, task, slot); |
184a4635 JG |
687 | } |
688 | ||
405314df | 689 | /* hisi_hba.lock should be locked */ |
184a4635 JG |
690 | static void hisi_sas_release_task(struct hisi_hba *hisi_hba, |
691 | struct domain_device *device) | |
692 | { | |
405314df JG |
693 | struct hisi_sas_slot *slot, *slot2; |
694 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
184a4635 | 695 | |
405314df JG |
696 | list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) |
697 | hisi_sas_do_release_task(hisi_hba, slot->task, slot); | |
184a4635 JG |
698 | } |
699 | ||
06ec0fb9 XC |
700 | static void hisi_sas_release_tasks(struct hisi_hba *hisi_hba) |
701 | { | |
405314df JG |
702 | struct hisi_sas_device *sas_dev; |
703 | struct domain_device *device; | |
06ec0fb9 XC |
704 | int i; |
705 | ||
405314df JG |
706 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
707 | sas_dev = &hisi_hba->devices[i]; | |
708 | device = sas_dev->sas_device; | |
06ec0fb9 | 709 | |
405314df JG |
710 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || |
711 | !device) | |
06ec0fb9 | 712 | continue; |
405314df JG |
713 | |
714 | hisi_sas_release_task(hisi_hba, device); | |
06ec0fb9 XC |
715 | } |
716 | } | |
717 | ||
d30ff263 XC |
718 | static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba, |
719 | struct domain_device *device) | |
720 | { | |
721 | if (hisi_hba->hw->dereg_device) | |
722 | hisi_hba->hw->dereg_device(hisi_hba, device); | |
723 | } | |
724 | ||
abda97c2 JG |
725 | static void hisi_sas_dev_gone(struct domain_device *device) |
726 | { | |
727 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
728 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 729 | struct device *dev = hisi_hba->dev; |
abda97c2 | 730 | |
ad604832 | 731 | dev_info(dev, "found dev[%d:%x] is gone\n", |
abda97c2 JG |
732 | sas_dev->device_id, sas_dev->dev_type); |
733 | ||
40f2702b JG |
734 | hisi_sas_internal_task_abort(hisi_hba, device, |
735 | HISI_SAS_INT_ABT_DEV, 0); | |
736 | ||
d30ff263 XC |
737 | hisi_sas_dereg_device(hisi_hba, device); |
738 | ||
abda97c2 JG |
739 | hisi_hba->hw->free_device(hisi_hba, sas_dev); |
740 | device->lldd_dev = NULL; | |
741 | memset(sas_dev, 0, sizeof(*sas_dev)); | |
abda97c2 | 742 | sas_dev->dev_type = SAS_PHY_UNUSED; |
abda97c2 | 743 | } |
42e7a693 JG |
744 | |
745 | static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) | |
746 | { | |
747 | return hisi_sas_task_exec(task, gfp_flags, 0, NULL); | |
748 | } | |
749 | ||
e4189d53 JG |
750 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
751 | void *funcdata) | |
752 | { | |
753 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
754 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
755 | int phy_no = sas_phy->id; | |
756 | ||
757 | switch (func) { | |
758 | case PHY_FUNC_HARD_RESET: | |
759 | hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no); | |
760 | break; | |
761 | ||
762 | case PHY_FUNC_LINK_RESET: | |
b4c67a6c JG |
763 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); |
764 | msleep(100); | |
e4189d53 | 765 | hisi_hba->hw->phy_enable(hisi_hba, phy_no); |
e4189d53 JG |
766 | break; |
767 | ||
768 | case PHY_FUNC_DISABLE: | |
769 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
770 | break; | |
771 | ||
772 | case PHY_FUNC_SET_LINK_RATE: | |
2ae75787 XC |
773 | hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, funcdata); |
774 | break; | |
c52108c6 XT |
775 | case PHY_FUNC_GET_EVENTS: |
776 | if (hisi_hba->hw->get_events) { | |
777 | hisi_hba->hw->get_events(hisi_hba, phy_no); | |
778 | break; | |
779 | } | |
780 | /* fallthru */ | |
e4189d53 JG |
781 | case PHY_FUNC_RELEASE_SPINUP_HOLD: |
782 | default: | |
783 | return -EOPNOTSUPP; | |
784 | } | |
785 | return 0; | |
786 | } | |
184a4635 | 787 | |
0efff300 JG |
788 | static void hisi_sas_task_done(struct sas_task *task) |
789 | { | |
790 | if (!del_timer(&task->slow_task->timer)) | |
791 | return; | |
792 | complete(&task->slow_task->completion); | |
793 | } | |
794 | ||
795 | static void hisi_sas_tmf_timedout(unsigned long data) | |
796 | { | |
797 | struct sas_task *task = (struct sas_task *)data; | |
f64a6988 XC |
798 | unsigned long flags; |
799 | ||
800 | spin_lock_irqsave(&task->task_state_lock, flags); | |
801 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) | |
802 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; | |
803 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
0efff300 | 804 | |
0efff300 JG |
805 | complete(&task->slow_task->completion); |
806 | } | |
807 | ||
808 | #define TASK_TIMEOUT 20 | |
809 | #define TASK_RETRY 3 | |
810 | static int hisi_sas_exec_internal_tmf_task(struct domain_device *device, | |
811 | void *parameter, u32 para_len, | |
812 | struct hisi_sas_tmf_task *tmf) | |
813 | { | |
814 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
815 | struct hisi_hba *hisi_hba = sas_dev->hisi_hba; | |
11b75249 | 816 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
817 | struct sas_task *task; |
818 | int res, retry; | |
819 | ||
820 | for (retry = 0; retry < TASK_RETRY; retry++) { | |
821 | task = sas_alloc_slow_task(GFP_KERNEL); | |
822 | if (!task) | |
823 | return -ENOMEM; | |
824 | ||
825 | task->dev = device; | |
826 | task->task_proto = device->tproto; | |
827 | ||
7c594f04 XC |
828 | if (dev_is_sata(device)) { |
829 | task->ata_task.device_control_reg_update = 1; | |
830 | memcpy(&task->ata_task.fis, parameter, para_len); | |
831 | } else { | |
832 | memcpy(&task->ssp_task, parameter, para_len); | |
833 | } | |
0efff300 JG |
834 | task->task_done = hisi_sas_task_done; |
835 | ||
836 | task->slow_task->timer.data = (unsigned long) task; | |
837 | task->slow_task->timer.function = hisi_sas_tmf_timedout; | |
838 | task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ; | |
839 | add_timer(&task->slow_task->timer); | |
840 | ||
841 | res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf); | |
842 | ||
843 | if (res) { | |
844 | del_timer(&task->slow_task->timer); | |
845 | dev_err(dev, "abort tmf: executing internal task failed: %d\n", | |
846 | res); | |
847 | goto ex_err; | |
848 | } | |
849 | ||
850 | wait_for_completion(&task->slow_task->completion); | |
851 | res = TMF_RESP_FUNC_FAILED; | |
852 | /* Even TMF timed out, return direct. */ | |
853 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
854 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
d3c4dd4e JG |
855 | struct hisi_sas_slot *slot = task->lldd_task; |
856 | ||
7c594f04 | 857 | dev_err(dev, "abort tmf: TMF task timeout\n"); |
d3c4dd4e JG |
858 | if (slot) |
859 | slot->task = NULL; | |
860 | ||
0efff300 JG |
861 | goto ex_err; |
862 | } | |
863 | } | |
864 | ||
865 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
1af1b808 | 866 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { |
0efff300 JG |
867 | res = TMF_RESP_FUNC_COMPLETE; |
868 | break; | |
869 | } | |
870 | ||
4ffde482 JG |
871 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
872 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
873 | res = TMF_RESP_FUNC_SUCC; | |
874 | break; | |
875 | } | |
876 | ||
0efff300 JG |
877 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
878 | task->task_status.stat == SAS_DATA_UNDERRUN) { | |
879 | /* no error, but return the number of bytes of | |
880 | * underrun | |
881 | */ | |
882 | dev_warn(dev, "abort tmf: task to dev %016llx " | |
883 | "resp: 0x%x sts 0x%x underrun\n", | |
884 | SAS_ADDR(device->sas_addr), | |
885 | task->task_status.resp, | |
886 | task->task_status.stat); | |
887 | res = task->task_status.residual; | |
888 | break; | |
889 | } | |
890 | ||
891 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
892 | task->task_status.stat == SAS_DATA_OVERRUN) { | |
893 | dev_warn(dev, "abort tmf: blocked task error\n"); | |
894 | res = -EMSGSIZE; | |
895 | break; | |
896 | } | |
897 | ||
898 | dev_warn(dev, "abort tmf: task to dev " | |
899 | "%016llx resp: 0x%x status 0x%x\n", | |
900 | SAS_ADDR(device->sas_addr), task->task_status.resp, | |
901 | task->task_status.stat); | |
902 | sas_free_task(task); | |
903 | task = NULL; | |
904 | } | |
905 | ex_err: | |
d2d7e7a0 XC |
906 | if (retry == TASK_RETRY) |
907 | dev_warn(dev, "abort tmf: executing internal task failed!\n"); | |
0efff300 JG |
908 | sas_free_task(task); |
909 | return res; | |
910 | } | |
911 | ||
7c594f04 XC |
912 | static void hisi_sas_fill_ata_reset_cmd(struct ata_device *dev, |
913 | bool reset, int pmp, u8 *fis) | |
914 | { | |
915 | struct ata_taskfile tf; | |
916 | ||
917 | ata_tf_init(dev, &tf); | |
918 | if (reset) | |
919 | tf.ctl |= ATA_SRST; | |
920 | else | |
921 | tf.ctl &= ~ATA_SRST; | |
922 | tf.command = ATA_CMD_DEV_RESET; | |
923 | ata_tf_to_fis(&tf, pmp, 0, fis); | |
924 | } | |
925 | ||
926 | static int hisi_sas_softreset_ata_disk(struct domain_device *device) | |
927 | { | |
928 | u8 fis[20] = {0}; | |
929 | struct ata_port *ap = device->sata_dev.ap; | |
930 | struct ata_link *link; | |
931 | int rc = TMF_RESP_FUNC_FAILED; | |
932 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 933 | struct device *dev = hisi_hba->dev; |
7c594f04 XC |
934 | int s = sizeof(struct host_to_dev_fis); |
935 | unsigned long flags; | |
936 | ||
937 | ata_for_each_link(link, ap, EDGE) { | |
938 | int pmp = sata_srst_pmp(link); | |
939 | ||
940 | hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis); | |
941 | rc = hisi_sas_exec_internal_tmf_task(device, fis, s, NULL); | |
942 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
943 | break; | |
944 | } | |
945 | ||
946 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
947 | ata_for_each_link(link, ap, EDGE) { | |
948 | int pmp = sata_srst_pmp(link); | |
949 | ||
950 | hisi_sas_fill_ata_reset_cmd(link->device, 0, pmp, fis); | |
951 | rc = hisi_sas_exec_internal_tmf_task(device, fis, | |
952 | s, NULL); | |
953 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
954 | dev_err(dev, "ata disk de-reset failed\n"); | |
955 | } | |
956 | } else { | |
957 | dev_err(dev, "ata disk reset failed\n"); | |
958 | } | |
959 | ||
960 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
961 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
962 | hisi_sas_release_task(hisi_hba, device); | |
963 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
964 | } | |
965 | ||
966 | return rc; | |
967 | } | |
968 | ||
0efff300 JG |
969 | static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device, |
970 | u8 *lun, struct hisi_sas_tmf_task *tmf) | |
971 | { | |
972 | struct sas_ssp_task ssp_task; | |
973 | ||
974 | if (!(device->tproto & SAS_PROTOCOL_SSP)) | |
975 | return TMF_RESP_FUNC_ESUPP; | |
976 | ||
977 | memcpy(ssp_task.LUN, lun, 8); | |
978 | ||
979 | return hisi_sas_exec_internal_tmf_task(device, &ssp_task, | |
980 | sizeof(ssp_task), tmf); | |
981 | } | |
982 | ||
917d3bda XT |
983 | static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba, |
984 | struct asd_sas_port *sas_port, enum sas_linkrate linkrate) | |
985 | { | |
986 | struct hisi_sas_device *sas_dev; | |
987 | struct domain_device *device; | |
988 | int i; | |
989 | ||
990 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
991 | sas_dev = &hisi_hba->devices[i]; | |
992 | device = sas_dev->sas_device; | |
993 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) | |
994 | || !device || (device->port != sas_port)) | |
995 | continue; | |
996 | ||
997 | hisi_hba->hw->free_device(hisi_hba, sas_dev); | |
998 | ||
999 | /* Update linkrate of directly attached device. */ | |
1000 | if (!device->parent) | |
1001 | device->linkrate = linkrate; | |
1002 | ||
1003 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); | |
1004 | } | |
1005 | } | |
1006 | ||
1007 | static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 old_state, | |
1008 | u32 state) | |
1009 | { | |
1010 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1011 | struct asd_sas_port *_sas_port = NULL; | |
1012 | int phy_no; | |
1013 | ||
1014 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { | |
1015 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1016 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1017 | struct asd_sas_port *sas_port = sas_phy->port; | |
1018 | struct hisi_sas_port *port = to_hisi_sas_port(sas_port); | |
1019 | bool do_port_check = !!(_sas_port != sas_port); | |
1020 | ||
1021 | if (!sas_phy->phy->enabled) | |
1022 | continue; | |
1023 | ||
1024 | /* Report PHY state change to libsas */ | |
1025 | if (state & (1 << phy_no)) { | |
1026 | if (do_port_check && sas_port) { | |
1027 | struct domain_device *dev = sas_port->port_dev; | |
1028 | ||
1029 | _sas_port = sas_port; | |
1030 | port->id = phy->port_id; | |
1031 | hisi_sas_refresh_port_id(hisi_hba, | |
1032 | sas_port, sas_phy->linkrate); | |
1033 | ||
1034 | if (DEV_IS_EXPANDER(dev->dev_type)) | |
1035 | sas_ha->notify_port_event(sas_phy, | |
1036 | PORTE_BROADCAST_RCVD); | |
1037 | } | |
1038 | } else if (old_state & (1 << phy_no)) | |
1039 | /* PHY down but was up before */ | |
1040 | hisi_sas_phy_down(hisi_hba, phy_no, 0); | |
1041 | ||
1042 | } | |
1043 | ||
1044 | drain_workqueue(hisi_hba->shost->work_q); | |
1045 | } | |
1046 | ||
06ec0fb9 XC |
1047 | static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba) |
1048 | { | |
917d3bda XT |
1049 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; |
1050 | struct device *dev = hisi_hba->dev; | |
1051 | struct Scsi_Host *shost = hisi_hba->shost; | |
1052 | u32 old_state, state; | |
1053 | unsigned long flags; | |
06ec0fb9 XC |
1054 | int rc; |
1055 | ||
1056 | if (!hisi_hba->hw->soft_reset) | |
1057 | return -1; | |
1058 | ||
917d3bda XT |
1059 | if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) |
1060 | return -1; | |
06ec0fb9 | 1061 | |
917d3bda XT |
1062 | dev_dbg(dev, "controller resetting...\n"); |
1063 | old_state = hisi_hba->hw->get_phys_state(hisi_hba); | |
06ec0fb9 | 1064 | |
917d3bda XT |
1065 | scsi_block_requests(shost); |
1066 | set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
1067 | rc = hisi_hba->hw->soft_reset(hisi_hba); | |
1068 | if (rc) { | |
1069 | dev_warn(dev, "controller reset failed (%d)\n", rc); | |
1070 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
1071 | goto out; | |
1072 | } | |
1073 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1074 | hisi_sas_release_tasks(hisi_hba); | |
1075 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1076 | ||
1077 | sas_ha->notify_ha_event(sas_ha, HAE_RESET); | |
1078 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
1079 | ||
1080 | /* Init and wait for PHYs to come up and all libsas event finished. */ | |
1081 | hisi_hba->hw->phys_init(hisi_hba); | |
1082 | msleep(1000); | |
1083 | drain_workqueue(hisi_hba->wq); | |
1084 | drain_workqueue(shost->work_q); | |
1085 | ||
1086 | state = hisi_hba->hw->get_phys_state(hisi_hba); | |
1087 | hisi_sas_rescan_topology(hisi_hba, old_state, state); | |
1088 | dev_dbg(dev, "controller reset complete\n"); | |
06ec0fb9 XC |
1089 | |
1090 | out: | |
917d3bda | 1091 | scsi_unblock_requests(shost); |
06ec0fb9 | 1092 | clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); |
917d3bda | 1093 | |
06ec0fb9 XC |
1094 | return rc; |
1095 | } | |
1096 | ||
0efff300 JG |
1097 | static int hisi_sas_abort_task(struct sas_task *task) |
1098 | { | |
1099 | struct scsi_lun lun; | |
1100 | struct hisi_sas_tmf_task tmf_task; | |
1101 | struct domain_device *device = task->dev; | |
1102 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1103 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
11b75249 | 1104 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1105 | int rc = TMF_RESP_FUNC_FAILED; |
1106 | unsigned long flags; | |
1107 | ||
1108 | if (!sas_dev) { | |
1109 | dev_warn(dev, "Device has been removed\n"); | |
1110 | return TMF_RESP_FUNC_FAILED; | |
1111 | } | |
1112 | ||
0efff300 | 1113 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { |
0efff300 JG |
1114 | rc = TMF_RESP_FUNC_COMPLETE; |
1115 | goto out; | |
1116 | } | |
1117 | ||
0efff300 JG |
1118 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
1119 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1120 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1121 | struct hisi_sas_slot *slot = task->lldd_task; | |
1122 | u32 tag = slot->idx; | |
c35279f2 | 1123 | int rc2; |
0efff300 JG |
1124 | |
1125 | int_to_scsilun(cmnd->device->lun, &lun); | |
1126 | tmf_task.tmf = TMF_ABORT_TASK; | |
1127 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1128 | ||
1129 | rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, | |
1130 | &tmf_task); | |
1131 | ||
c35279f2 JG |
1132 | rc2 = hisi_sas_internal_task_abort(hisi_hba, device, |
1133 | HISI_SAS_INT_ABT_CMD, tag); | |
1134 | /* | |
1135 | * If the TMF finds that the IO is not in the device and also | |
1136 | * the internal abort does not succeed, then it is safe to | |
1137 | * free the slot. | |
1138 | * Note: if the internal abort succeeds then the slot | |
1139 | * will have already been completed | |
1140 | */ | |
1141 | if (rc == TMF_RESP_FUNC_COMPLETE && rc2 != TMF_RESP_FUNC_SUCC) { | |
0efff300 | 1142 | if (task->lldd_task) { |
0efff300 | 1143 | spin_lock_irqsave(&hisi_hba->lock, flags); |
c35279f2 | 1144 | hisi_sas_do_release_task(hisi_hba, task, slot); |
0efff300 JG |
1145 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1146 | } | |
1147 | } | |
0efff300 JG |
1148 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1149 | task->task_proto & SAS_PROTOCOL_STP) { | |
1150 | if (task->dev->dev_type == SAS_SATA_DEV) { | |
dc8a49ca JG |
1151 | hisi_sas_internal_task_abort(hisi_hba, device, |
1152 | HISI_SAS_INT_ABT_DEV, 0); | |
d30ff263 | 1153 | hisi_sas_dereg_device(hisi_hba, device); |
7c594f04 | 1154 | rc = hisi_sas_softreset_ata_disk(device); |
0efff300 | 1155 | } |
eb045e04 | 1156 | } else if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SMP) { |
dc8a49ca JG |
1157 | /* SMP */ |
1158 | struct hisi_sas_slot *slot = task->lldd_task; | |
1159 | u32 tag = slot->idx; | |
0efff300 | 1160 | |
ccbfe5a0 XC |
1161 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1162 | HISI_SAS_INT_ABT_CMD, tag); | |
1163 | if (rc == TMF_RESP_FUNC_FAILED) { | |
1164 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1165 | hisi_sas_do_release_task(hisi_hba, task, slot); | |
1166 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1167 | } | |
0efff300 JG |
1168 | } |
1169 | ||
1170 | out: | |
1171 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1172 | dev_notice(dev, "abort task: rc=%d\n", rc); | |
1173 | return rc; | |
1174 | } | |
1175 | ||
1176 | static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun) | |
1177 | { | |
1178 | struct hisi_sas_tmf_task tmf_task; | |
1179 | int rc = TMF_RESP_FUNC_FAILED; | |
1180 | ||
1181 | tmf_task.tmf = TMF_ABORT_TASK_SET; | |
1182 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1183 | ||
1184 | return rc; | |
1185 | } | |
1186 | ||
1187 | static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun) | |
1188 | { | |
1189 | int rc = TMF_RESP_FUNC_FAILED; | |
1190 | struct hisi_sas_tmf_task tmf_task; | |
1191 | ||
1192 | tmf_task.tmf = TMF_CLEAR_ACA; | |
1193 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1194 | ||
1195 | return rc; | |
1196 | } | |
1197 | ||
1198 | static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device) | |
1199 | { | |
1200 | struct sas_phy *phy = sas_get_local_phy(device); | |
1201 | int rc, reset_type = (device->dev_type == SAS_SATA_DEV || | |
1202 | (device->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; | |
1203 | rc = sas_phy_reset(phy, reset_type); | |
1204 | sas_put_local_phy(phy); | |
1205 | msleep(2000); | |
1206 | return rc; | |
1207 | } | |
1208 | ||
1209 | static int hisi_sas_I_T_nexus_reset(struct domain_device *device) | |
1210 | { | |
1211 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1212 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
1213 | unsigned long flags; | |
1214 | int rc = TMF_RESP_FUNC_FAILED; | |
1215 | ||
1216 | if (sas_dev->dev_status != HISI_SAS_DEV_EH) | |
1217 | return TMF_RESP_FUNC_FAILED; | |
1218 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
1219 | ||
d30ff263 XC |
1220 | hisi_sas_internal_task_abort(hisi_hba, device, |
1221 | HISI_SAS_INT_ABT_DEV, 0); | |
1222 | hisi_sas_dereg_device(hisi_hba, device); | |
1223 | ||
0efff300 JG |
1224 | rc = hisi_sas_debug_I_T_nexus_reset(device); |
1225 | ||
6131243a XC |
1226 | if (rc == TMF_RESP_FUNC_COMPLETE) { |
1227 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1228 | hisi_sas_release_task(hisi_hba, device); | |
1229 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1230 | } | |
1231 | return rc; | |
0efff300 JG |
1232 | } |
1233 | ||
1234 | static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun) | |
1235 | { | |
0efff300 JG |
1236 | struct hisi_sas_device *sas_dev = device->lldd_dev; |
1237 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1238 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1239 | unsigned long flags; |
1240 | int rc = TMF_RESP_FUNC_FAILED; | |
1241 | ||
0efff300 | 1242 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
055945df JG |
1243 | if (dev_is_sata(device)) { |
1244 | struct sas_phy *phy; | |
1245 | ||
1246 | /* Clear internal IO and then hardreset */ | |
1247 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1248 | HISI_SAS_INT_ABT_DEV, 0); | |
1249 | if (rc == TMF_RESP_FUNC_FAILED) | |
1250 | goto out; | |
d30ff263 | 1251 | hisi_sas_dereg_device(hisi_hba, device); |
0efff300 | 1252 | |
055945df JG |
1253 | phy = sas_get_local_phy(device); |
1254 | ||
1255 | rc = sas_phy_reset(phy, 1); | |
1256 | ||
1257 | if (rc == 0) { | |
1258 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1259 | hisi_sas_release_task(hisi_hba, device); | |
1260 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1261 | } | |
1262 | sas_put_local_phy(phy); | |
1263 | } else { | |
1264 | struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET }; | |
1265 | ||
1266 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1267 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1268 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1269 | hisi_sas_release_task(hisi_hba, device); | |
1270 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1271 | } | |
1272 | } | |
1273 | out: | |
14d3f397 | 1274 | if (rc != TMF_RESP_FUNC_COMPLETE) |
ad604832 | 1275 | dev_err(dev, "lu_reset: for device[%d]:rc= %d\n", |
14d3f397 | 1276 | sas_dev->device_id, rc); |
0efff300 JG |
1277 | return rc; |
1278 | } | |
1279 | ||
8b05ad6a JG |
1280 | static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha) |
1281 | { | |
1282 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
1283 | ||
1284 | return hisi_sas_controller_reset(hisi_hba); | |
1285 | } | |
1286 | ||
0efff300 JG |
1287 | static int hisi_sas_query_task(struct sas_task *task) |
1288 | { | |
1289 | struct scsi_lun lun; | |
1290 | struct hisi_sas_tmf_task tmf_task; | |
1291 | int rc = TMF_RESP_FUNC_FAILED; | |
1292 | ||
1293 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1294 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1295 | struct domain_device *device = task->dev; | |
1296 | struct hisi_sas_slot *slot = task->lldd_task; | |
1297 | u32 tag = slot->idx; | |
1298 | ||
1299 | int_to_scsilun(cmnd->device->lun, &lun); | |
1300 | tmf_task.tmf = TMF_QUERY_TASK; | |
1301 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1302 | ||
1303 | rc = hisi_sas_debug_issue_ssp_tmf(device, | |
1304 | lun.scsi_lun, | |
1305 | &tmf_task); | |
1306 | switch (rc) { | |
1307 | /* The task is still in Lun, release it then */ | |
1308 | case TMF_RESP_FUNC_SUCC: | |
1309 | /* The task is not in Lun or failed, reset the phy */ | |
1310 | case TMF_RESP_FUNC_FAILED: | |
1311 | case TMF_RESP_FUNC_COMPLETE: | |
1312 | break; | |
997ee43c XC |
1313 | default: |
1314 | rc = TMF_RESP_FUNC_FAILED; | |
1315 | break; | |
0efff300 JG |
1316 | } |
1317 | } | |
1318 | return rc; | |
1319 | } | |
1320 | ||
441c2740 | 1321 | static int |
ad604832 | 1322 | hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id, |
441c2740 JG |
1323 | struct sas_task *task, int abort_flag, |
1324 | int task_tag) | |
1325 | { | |
1326 | struct domain_device *device = task->dev; | |
1327 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1328 | struct device *dev = hisi_hba->dev; |
441c2740 JG |
1329 | struct hisi_sas_port *port; |
1330 | struct hisi_sas_slot *slot; | |
2e244f0f | 1331 | struct asd_sas_port *sas_port = device->port; |
441c2740 | 1332 | struct hisi_sas_cmd_hdr *cmd_hdr_base; |
b1a49412 | 1333 | struct hisi_sas_dq *dq = sas_dev->dq; |
441c2740 | 1334 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
b1a49412 | 1335 | unsigned long flags, flags_dq; |
441c2740 | 1336 | |
917d3bda | 1337 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
1338 | return -EINVAL; |
1339 | ||
441c2740 JG |
1340 | if (!device->port) |
1341 | return -1; | |
1342 | ||
2e244f0f | 1343 | port = to_hisi_sas_port(sas_port); |
441c2740 JG |
1344 | |
1345 | /* simply get a slot and send abort command */ | |
b1a49412 | 1346 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1347 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); |
b1a49412 XC |
1348 | if (rc) { |
1349 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
441c2740 | 1350 | goto err_out; |
b1a49412 XC |
1351 | } |
1352 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1353 | ||
1354 | spin_lock_irqsave(&dq->lock, flags_dq); | |
1355 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
441c2740 JG |
1356 | if (rc) |
1357 | goto err_out_tag; | |
1358 | ||
b1a49412 XC |
1359 | dlvry_queue = dq->id; |
1360 | dlvry_queue_slot = dq->wr_point; | |
1361 | ||
441c2740 JG |
1362 | slot = &hisi_hba->slot_info[slot_idx]; |
1363 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
1364 | ||
1365 | slot->idx = slot_idx; | |
1366 | slot->n_elem = n_elem; | |
1367 | slot->dlvry_queue = dlvry_queue; | |
1368 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
1369 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
1370 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
1371 | slot->task = task; | |
1372 | slot->port = port; | |
1373 | task->lldd_task = slot; | |
1374 | ||
031da09c XC |
1375 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
1376 | GFP_ATOMIC, &slot->buf_dma); | |
1377 | if (!slot->buf) { | |
1378 | rc = -ENOMEM; | |
1379 | goto err_out_tag; | |
1380 | } | |
1381 | ||
441c2740 | 1382 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
031da09c XC |
1383 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
1384 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
441c2740 JG |
1385 | |
1386 | rc = hisi_sas_task_prep_abort(hisi_hba, slot, device_id, | |
1387 | abort_flag, task_tag); | |
1388 | if (rc) | |
031da09c | 1389 | goto err_out_buf; |
441c2740 | 1390 | |
405314df JG |
1391 | |
1392 | list_add_tail(&slot->entry, &sas_dev->list); | |
54c9dd2d | 1393 | spin_lock_irqsave(&task->task_state_lock, flags); |
441c2740 | 1394 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 1395 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
441c2740 | 1396 | |
b1a49412 | 1397 | dq->slot_prep = slot; |
441c2740 | 1398 | |
f696cc32 JG |
1399 | atomic64_inc(&sas_dev->running_req); |
1400 | ||
b1a49412 XC |
1401 | /* send abort command to the chip */ |
1402 | hisi_hba->hw->start_delivery(dq); | |
1403 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1404 | |
1405 | return 0; | |
1406 | ||
031da09c XC |
1407 | err_out_buf: |
1408 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
1409 | slot->buf_dma); | |
441c2740 | 1410 | err_out_tag: |
b1a49412 | 1411 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1412 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 XC |
1413 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1414 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1415 | err_out: |
1416 | dev_err(dev, "internal abort task prep: failed[%d]!\n", rc); | |
1417 | ||
1418 | return rc; | |
1419 | } | |
1420 | ||
1421 | /** | |
1422 | * hisi_sas_internal_task_abort -- execute an internal | |
1423 | * abort command for single IO command or a device | |
1424 | * @hisi_hba: host controller struct | |
1425 | * @device: domain device | |
1426 | * @abort_flag: mode of operation, device or single IO | |
1427 | * @tag: tag of IO to be aborted (only relevant to single | |
1428 | * IO mode) | |
1429 | */ | |
1430 | static int | |
1431 | hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, | |
1432 | struct domain_device *device, | |
1433 | int abort_flag, int tag) | |
1434 | { | |
1435 | struct sas_task *task; | |
1436 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1437 | struct device *dev = hisi_hba->dev; |
441c2740 | 1438 | int res; |
441c2740 JG |
1439 | |
1440 | if (!hisi_hba->hw->prep_abort) | |
1441 | return -EOPNOTSUPP; | |
1442 | ||
1443 | task = sas_alloc_slow_task(GFP_KERNEL); | |
1444 | if (!task) | |
1445 | return -ENOMEM; | |
1446 | ||
1447 | task->dev = device; | |
1448 | task->task_proto = device->tproto; | |
1449 | task->task_done = hisi_sas_task_done; | |
1450 | task->slow_task->timer.data = (unsigned long)task; | |
1451 | task->slow_task->timer.function = hisi_sas_tmf_timedout; | |
0844a3ff | 1452 | task->slow_task->timer.expires = jiffies + msecs_to_jiffies(110); |
441c2740 JG |
1453 | add_timer(&task->slow_task->timer); |
1454 | ||
441c2740 JG |
1455 | res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id, |
1456 | task, abort_flag, tag); | |
441c2740 JG |
1457 | if (res) { |
1458 | del_timer(&task->slow_task->timer); | |
1459 | dev_err(dev, "internal task abort: executing internal task failed: %d\n", | |
1460 | res); | |
1461 | goto exit; | |
1462 | } | |
1463 | wait_for_completion(&task->slow_task->completion); | |
1464 | res = TMF_RESP_FUNC_FAILED; | |
1465 | ||
f64a6988 XC |
1466 | /* Internal abort timed out */ |
1467 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
1468 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
1469 | struct hisi_sas_slot *slot = task->lldd_task; | |
1470 | ||
1471 | if (slot) | |
1472 | slot->task = NULL; | |
1473 | dev_err(dev, "internal task abort: timeout.\n"); | |
1474 | } | |
1475 | } | |
1476 | ||
441c2740 JG |
1477 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1478 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { | |
1479 | res = TMF_RESP_FUNC_COMPLETE; | |
1480 | goto exit; | |
1481 | } | |
1482 | ||
c35279f2 JG |
1483 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1484 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
1485 | res = TMF_RESP_FUNC_SUCC; | |
1486 | goto exit; | |
1487 | } | |
1488 | ||
441c2740 | 1489 | exit: |
297d7302 | 1490 | dev_dbg(dev, "internal task abort: task to dev %016llx task=%p " |
441c2740 JG |
1491 | "resp: 0x%x sts 0x%x\n", |
1492 | SAS_ADDR(device->sas_addr), | |
1493 | task, | |
1494 | task->task_status.resp, /* 0 is complete, -1 is undelivered */ | |
1495 | task->task_status.stat); | |
1496 | sas_free_task(task); | |
1497 | ||
1498 | return res; | |
1499 | } | |
1500 | ||
184a4635 JG |
1501 | static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy) |
1502 | { | |
1503 | hisi_sas_port_notify_formed(sas_phy); | |
1504 | } | |
1505 | ||
184a4635 JG |
1506 | static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy) |
1507 | { | |
1508 | phy->phy_attached = 0; | |
1509 | phy->phy_type = 0; | |
1510 | phy->port = NULL; | |
1511 | } | |
1512 | ||
1513 | void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) | |
1514 | { | |
1515 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1516 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1517 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1518 | ||
1519 | if (rdy) { | |
1520 | /* Phy down but ready */ | |
1521 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
1522 | hisi_sas_port_notify_formed(sas_phy); | |
1523 | } else { | |
1524 | struct hisi_sas_port *port = phy->port; | |
1525 | ||
1526 | /* Phy down and not ready */ | |
1527 | sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL); | |
1528 | sas_phy_disconnected(sas_phy); | |
1529 | ||
1530 | if (port) { | |
1531 | if (phy->phy_type & PORT_TYPE_SAS) { | |
1532 | int port_id = port->id; | |
1533 | ||
1534 | if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba, | |
1535 | port_id)) | |
1536 | port->port_attached = 0; | |
1537 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
1538 | port->port_attached = 0; | |
1539 | } | |
1540 | hisi_sas_phy_disconnected(phy); | |
1541 | } | |
1542 | } | |
1543 | EXPORT_SYMBOL_GPL(hisi_sas_phy_down); | |
1544 | ||
06ec0fb9 | 1545 | |
e21fe3a5 JG |
1546 | struct scsi_transport_template *hisi_sas_stt; |
1547 | EXPORT_SYMBOL_GPL(hisi_sas_stt); | |
e8899fad | 1548 | |
e21fe3a5 | 1549 | static struct scsi_host_template _hisi_sas_sht = { |
7eb7869f JG |
1550 | .module = THIS_MODULE, |
1551 | .name = DRV_NAME, | |
1552 | .queuecommand = sas_queuecommand, | |
1553 | .target_alloc = sas_target_alloc, | |
31eec8a6 | 1554 | .slave_configure = hisi_sas_slave_configure, |
701f75ec JG |
1555 | .scan_finished = hisi_sas_scan_finished, |
1556 | .scan_start = hisi_sas_scan_start, | |
7eb7869f JG |
1557 | .change_queue_depth = sas_change_queue_depth, |
1558 | .bios_param = sas_bios_param, | |
1559 | .can_queue = 1, | |
1560 | .this_id = -1, | |
1561 | .sg_tablesize = SG_ALL, | |
1562 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, | |
1563 | .use_clustering = ENABLE_CLUSTERING, | |
1564 | .eh_device_reset_handler = sas_eh_device_reset_handler, | |
cc199e78 | 1565 | .eh_target_reset_handler = sas_eh_target_reset_handler, |
7eb7869f JG |
1566 | .target_destroy = sas_target_destroy, |
1567 | .ioctl = sas_ioctl, | |
1568 | }; | |
e21fe3a5 JG |
1569 | struct scsi_host_template *hisi_sas_sht = &_hisi_sas_sht; |
1570 | EXPORT_SYMBOL_GPL(hisi_sas_sht); | |
7eb7869f | 1571 | |
e8899fad | 1572 | static struct sas_domain_function_template hisi_sas_transport_ops = { |
abda97c2 JG |
1573 | .lldd_dev_found = hisi_sas_dev_found, |
1574 | .lldd_dev_gone = hisi_sas_dev_gone, | |
42e7a693 | 1575 | .lldd_execute_task = hisi_sas_queue_command, |
e4189d53 | 1576 | .lldd_control_phy = hisi_sas_control_phy, |
0efff300 JG |
1577 | .lldd_abort_task = hisi_sas_abort_task, |
1578 | .lldd_abort_task_set = hisi_sas_abort_task_set, | |
1579 | .lldd_clear_aca = hisi_sas_clear_aca, | |
1580 | .lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset, | |
1581 | .lldd_lu_reset = hisi_sas_lu_reset, | |
1582 | .lldd_query_task = hisi_sas_query_task, | |
8b05ad6a | 1583 | .lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha, |
184a4635 | 1584 | .lldd_port_formed = hisi_sas_port_formed, |
e8899fad JG |
1585 | }; |
1586 | ||
06ec0fb9 XC |
1587 | void hisi_sas_init_mem(struct hisi_hba *hisi_hba) |
1588 | { | |
1589 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; | |
1590 | ||
1591 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1592 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
1593 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; | |
1594 | ||
1595 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1596 | memset(hisi_hba->cmd_hdr[i], 0, s); | |
1597 | dq->wr_point = 0; | |
1598 | ||
1599 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1600 | memset(hisi_hba->complete_hdr[i], 0, s); | |
1601 | cq->rd_point = 0; | |
1602 | } | |
1603 | ||
1604 | s = sizeof(struct hisi_sas_initial_fis) * hisi_hba->n_phy; | |
1605 | memset(hisi_hba->initial_fis, 0, s); | |
1606 | ||
1607 | s = max_command_entries * sizeof(struct hisi_sas_iost); | |
1608 | memset(hisi_hba->iost, 0, s); | |
1609 | ||
1610 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); | |
1611 | memset(hisi_hba->breakpoint, 0, s); | |
1612 | ||
1613 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint) * 2; | |
1614 | memset(hisi_hba->sata_breakpoint, 0, s); | |
1615 | } | |
1616 | EXPORT_SYMBOL_GPL(hisi_sas_init_mem); | |
1617 | ||
e21fe3a5 | 1618 | int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost) |
6be6de18 | 1619 | { |
11b75249 | 1620 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1621 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
6be6de18 | 1622 | |
fa42d80d | 1623 | spin_lock_init(&hisi_hba->lock); |
976867e6 JG |
1624 | for (i = 0; i < hisi_hba->n_phy; i++) { |
1625 | hisi_sas_phy_init(hisi_hba, i); | |
1626 | hisi_hba->port[i].port_attached = 0; | |
1627 | hisi_hba->port[i].id = -1; | |
976867e6 JG |
1628 | } |
1629 | ||
af740dbe JG |
1630 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
1631 | hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED; | |
1632 | hisi_hba->devices[i].device_id = i; | |
1633 | hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL; | |
1634 | } | |
1635 | ||
6be6de18 | 1636 | for (i = 0; i < hisi_hba->queue_count; i++) { |
9101a079 | 1637 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
4fde02ad | 1638 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; |
9101a079 JG |
1639 | |
1640 | /* Completion queue structure */ | |
1641 | cq->id = i; | |
1642 | cq->hisi_hba = hisi_hba; | |
1643 | ||
4fde02ad JG |
1644 | /* Delivery queue structure */ |
1645 | dq->id = i; | |
1646 | dq->hisi_hba = hisi_hba; | |
1647 | ||
6be6de18 JG |
1648 | /* Delivery queue */ |
1649 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1650 | hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s, | |
1651 | &hisi_hba->cmd_hdr_dma[i], GFP_KERNEL); | |
1652 | if (!hisi_hba->cmd_hdr[i]) | |
1653 | goto err_out; | |
6be6de18 JG |
1654 | |
1655 | /* Completion queue */ | |
1656 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1657 | hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s, | |
1658 | &hisi_hba->complete_hdr_dma[i], GFP_KERNEL); | |
1659 | if (!hisi_hba->complete_hdr[i]) | |
1660 | goto err_out; | |
6be6de18 JG |
1661 | } |
1662 | ||
f557e32c XT |
1663 | s = sizeof(struct hisi_sas_slot_buf_table); |
1664 | hisi_hba->buffer_pool = dma_pool_create("dma_buffer", dev, s, 16, 0); | |
1665 | if (!hisi_hba->buffer_pool) | |
6be6de18 JG |
1666 | goto err_out; |
1667 | ||
1668 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
1669 | hisi_hba->itct = dma_alloc_coherent(dev, s, &hisi_hba->itct_dma, | |
1670 | GFP_KERNEL); | |
1671 | if (!hisi_hba->itct) | |
1672 | goto err_out; | |
1673 | ||
1674 | memset(hisi_hba->itct, 0, s); | |
1675 | ||
a8d547bd | 1676 | hisi_hba->slot_info = devm_kcalloc(dev, max_command_entries, |
6be6de18 JG |
1677 | sizeof(struct hisi_sas_slot), |
1678 | GFP_KERNEL); | |
1679 | if (!hisi_hba->slot_info) | |
1680 | goto err_out; | |
1681 | ||
a8d547bd | 1682 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
6be6de18 JG |
1683 | hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma, |
1684 | GFP_KERNEL); | |
1685 | if (!hisi_hba->iost) | |
1686 | goto err_out; | |
1687 | ||
a8d547bd | 1688 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
6be6de18 JG |
1689 | hisi_hba->breakpoint = dma_alloc_coherent(dev, s, |
1690 | &hisi_hba->breakpoint_dma, GFP_KERNEL); | |
1691 | if (!hisi_hba->breakpoint) | |
1692 | goto err_out; | |
1693 | ||
a8d547bd | 1694 | hisi_hba->slot_index_count = max_command_entries; |
433f5696 | 1695 | s = hisi_hba->slot_index_count / BITS_PER_BYTE; |
257efd1f JG |
1696 | hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL); |
1697 | if (!hisi_hba->slot_index_tags) | |
1698 | goto err_out; | |
1699 | ||
6be6de18 JG |
1700 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; |
1701 | hisi_hba->initial_fis = dma_alloc_coherent(dev, s, | |
1702 | &hisi_hba->initial_fis_dma, GFP_KERNEL); | |
1703 | if (!hisi_hba->initial_fis) | |
1704 | goto err_out; | |
6be6de18 | 1705 | |
a8d547bd | 1706 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint) * 2; |
6be6de18 JG |
1707 | hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s, |
1708 | &hisi_hba->sata_breakpoint_dma, GFP_KERNEL); | |
1709 | if (!hisi_hba->sata_breakpoint) | |
1710 | goto err_out; | |
06ec0fb9 | 1711 | hisi_sas_init_mem(hisi_hba); |
6be6de18 | 1712 | |
257efd1f JG |
1713 | hisi_sas_slot_index_init(hisi_hba); |
1714 | ||
7e9080e1 JG |
1715 | hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); |
1716 | if (!hisi_hba->wq) { | |
1717 | dev_err(dev, "sas_alloc: failed to create workqueue\n"); | |
1718 | goto err_out; | |
1719 | } | |
1720 | ||
6be6de18 JG |
1721 | return 0; |
1722 | err_out: | |
1723 | return -ENOMEM; | |
1724 | } | |
e21fe3a5 | 1725 | EXPORT_SYMBOL_GPL(hisi_sas_alloc); |
6be6de18 | 1726 | |
e21fe3a5 | 1727 | void hisi_sas_free(struct hisi_hba *hisi_hba) |
89d53322 | 1728 | { |
11b75249 | 1729 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1730 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
89d53322 JG |
1731 | |
1732 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1733 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1734 | if (hisi_hba->cmd_hdr[i]) | |
1735 | dma_free_coherent(dev, s, | |
1736 | hisi_hba->cmd_hdr[i], | |
1737 | hisi_hba->cmd_hdr_dma[i]); | |
1738 | ||
1739 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1740 | if (hisi_hba->complete_hdr[i]) | |
1741 | dma_free_coherent(dev, s, | |
1742 | hisi_hba->complete_hdr[i], | |
1743 | hisi_hba->complete_hdr_dma[i]); | |
1744 | } | |
1745 | ||
f557e32c | 1746 | dma_pool_destroy(hisi_hba->buffer_pool); |
89d53322 JG |
1747 | |
1748 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
1749 | if (hisi_hba->itct) | |
1750 | dma_free_coherent(dev, s, | |
1751 | hisi_hba->itct, hisi_hba->itct_dma); | |
1752 | ||
a8d547bd | 1753 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
89d53322 JG |
1754 | if (hisi_hba->iost) |
1755 | dma_free_coherent(dev, s, | |
1756 | hisi_hba->iost, hisi_hba->iost_dma); | |
1757 | ||
a8d547bd | 1758 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
89d53322 JG |
1759 | if (hisi_hba->breakpoint) |
1760 | dma_free_coherent(dev, s, | |
1761 | hisi_hba->breakpoint, | |
1762 | hisi_hba->breakpoint_dma); | |
1763 | ||
1764 | ||
1765 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; | |
1766 | if (hisi_hba->initial_fis) | |
1767 | dma_free_coherent(dev, s, | |
1768 | hisi_hba->initial_fis, | |
1769 | hisi_hba->initial_fis_dma); | |
1770 | ||
a8d547bd | 1771 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint) * 2; |
89d53322 JG |
1772 | if (hisi_hba->sata_breakpoint) |
1773 | dma_free_coherent(dev, s, | |
1774 | hisi_hba->sata_breakpoint, | |
1775 | hisi_hba->sata_breakpoint_dma); | |
1776 | ||
7e9080e1 JG |
1777 | if (hisi_hba->wq) |
1778 | destroy_workqueue(hisi_hba->wq); | |
89d53322 | 1779 | } |
e21fe3a5 | 1780 | EXPORT_SYMBOL_GPL(hisi_sas_free); |
6be6de18 | 1781 | |
06ec0fb9 XC |
1782 | static void hisi_sas_rst_work_handler(struct work_struct *work) |
1783 | { | |
1784 | struct hisi_hba *hisi_hba = | |
1785 | container_of(work, struct hisi_hba, rst_work); | |
1786 | ||
1787 | hisi_sas_controller_reset(hisi_hba); | |
1788 | } | |
1789 | ||
0fa24c19 | 1790 | int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba) |
7eb7869f | 1791 | { |
0fa24c19 JG |
1792 | struct device *dev = hisi_hba->dev; |
1793 | struct platform_device *pdev = hisi_hba->platform_dev; | |
1794 | struct device_node *np = pdev ? pdev->dev.of_node : NULL; | |
3bc45af8 | 1795 | struct clk *refclk; |
7eb7869f | 1796 | |
4d558c77 | 1797 | if (device_property_read_u8_array(dev, "sas-addr", hisi_hba->sas_addr, |
0fa24c19 JG |
1798 | SAS_ADDR_SIZE)) { |
1799 | dev_err(dev, "could not get property sas-addr\n"); | |
1800 | return -ENOENT; | |
1801 | } | |
e26b2f40 | 1802 | |
4d558c77 | 1803 | if (np) { |
0fa24c19 JG |
1804 | /* |
1805 | * These properties are only required for platform device-based | |
1806 | * controller with DT firmware. | |
1807 | */ | |
4d558c77 JG |
1808 | hisi_hba->ctrl = syscon_regmap_lookup_by_phandle(np, |
1809 | "hisilicon,sas-syscon"); | |
0fa24c19 JG |
1810 | if (IS_ERR(hisi_hba->ctrl)) { |
1811 | dev_err(dev, "could not get syscon\n"); | |
1812 | return -ENOENT; | |
1813 | } | |
e26b2f40 | 1814 | |
4d558c77 | 1815 | if (device_property_read_u32(dev, "ctrl-reset-reg", |
0fa24c19 JG |
1816 | &hisi_hba->ctrl_reset_reg)) { |
1817 | dev_err(dev, | |
1818 | "could not get property ctrl-reset-reg\n"); | |
1819 | return -ENOENT; | |
1820 | } | |
e26b2f40 | 1821 | |
4d558c77 | 1822 | if (device_property_read_u32(dev, "ctrl-reset-sts-reg", |
0fa24c19 JG |
1823 | &hisi_hba->ctrl_reset_sts_reg)) { |
1824 | dev_err(dev, | |
1825 | "could not get property ctrl-reset-sts-reg\n"); | |
1826 | return -ENOENT; | |
1827 | } | |
e26b2f40 | 1828 | |
4d558c77 | 1829 | if (device_property_read_u32(dev, "ctrl-clock-ena-reg", |
0fa24c19 JG |
1830 | &hisi_hba->ctrl_clock_ena_reg)) { |
1831 | dev_err(dev, | |
1832 | "could not get property ctrl-clock-ena-reg\n"); | |
1833 | return -ENOENT; | |
1834 | } | |
4d558c77 JG |
1835 | } |
1836 | ||
0fa24c19 | 1837 | refclk = devm_clk_get(dev, NULL); |
3bc45af8 | 1838 | if (IS_ERR(refclk)) |
87e287c1 | 1839 | dev_dbg(dev, "no ref clk property\n"); |
3bc45af8 JG |
1840 | else |
1841 | hisi_hba->refclk_frequency_mhz = clk_get_rate(refclk) / 1000000; | |
1842 | ||
0fa24c19 JG |
1843 | if (device_property_read_u32(dev, "phy-count", &hisi_hba->n_phy)) { |
1844 | dev_err(dev, "could not get property phy-count\n"); | |
1845 | return -ENOENT; | |
1846 | } | |
e26b2f40 | 1847 | |
4d558c77 | 1848 | if (device_property_read_u32(dev, "queue-count", |
0fa24c19 JG |
1849 | &hisi_hba->queue_count)) { |
1850 | dev_err(dev, "could not get property queue-count\n"); | |
1851 | return -ENOENT; | |
1852 | } | |
1853 | ||
1854 | return 0; | |
1855 | } | |
1856 | EXPORT_SYMBOL_GPL(hisi_sas_get_fw_info); | |
1857 | ||
1858 | static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev, | |
1859 | const struct hisi_sas_hw *hw) | |
1860 | { | |
1861 | struct resource *res; | |
1862 | struct Scsi_Host *shost; | |
1863 | struct hisi_hba *hisi_hba; | |
1864 | struct device *dev = &pdev->dev; | |
1865 | ||
e21fe3a5 | 1866 | shost = scsi_host_alloc(hisi_sas_sht, sizeof(*hisi_hba)); |
0fa24c19 JG |
1867 | if (!shost) { |
1868 | dev_err(dev, "scsi host alloc failed\n"); | |
1869 | return NULL; | |
1870 | } | |
1871 | hisi_hba = shost_priv(shost); | |
1872 | ||
1873 | INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler); | |
1874 | hisi_hba->hw = hw; | |
1875 | hisi_hba->dev = dev; | |
1876 | hisi_hba->platform_dev = pdev; | |
1877 | hisi_hba->shost = shost; | |
1878 | SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; | |
1879 | ||
1880 | init_timer(&hisi_hba->timer); | |
1881 | ||
1882 | if (hisi_sas_get_fw_info(hisi_hba) < 0) | |
e26b2f40 JG |
1883 | goto err_out; |
1884 | ||
a6f2c7ff JG |
1885 | if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) && |
1886 | dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) { | |
1887 | dev_err(dev, "No usable DMA addressing method\n"); | |
1888 | goto err_out; | |
1889 | } | |
1890 | ||
e26b2f40 JG |
1891 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
1892 | hisi_hba->regs = devm_ioremap_resource(dev, res); | |
1893 | if (IS_ERR(hisi_hba->regs)) | |
1894 | goto err_out; | |
1895 | ||
89d53322 JG |
1896 | if (hisi_sas_alloc(hisi_hba, shost)) { |
1897 | hisi_sas_free(hisi_hba); | |
6be6de18 | 1898 | goto err_out; |
89d53322 | 1899 | } |
6be6de18 | 1900 | |
7eb7869f JG |
1901 | return shost; |
1902 | err_out: | |
76aae5f6 | 1903 | scsi_host_put(shost); |
7eb7869f JG |
1904 | dev_err(dev, "shost alloc failed\n"); |
1905 | return NULL; | |
1906 | } | |
1907 | ||
e21fe3a5 | 1908 | void hisi_sas_init_add(struct hisi_hba *hisi_hba) |
5d74242e JG |
1909 | { |
1910 | int i; | |
1911 | ||
1912 | for (i = 0; i < hisi_hba->n_phy; i++) | |
1913 | memcpy(&hisi_hba->phy[i].dev_sas_addr, | |
1914 | hisi_hba->sas_addr, | |
1915 | SAS_ADDR_SIZE); | |
1916 | } | |
e21fe3a5 | 1917 | EXPORT_SYMBOL_GPL(hisi_sas_init_add); |
5d74242e | 1918 | |
7eb7869f JG |
1919 | int hisi_sas_probe(struct platform_device *pdev, |
1920 | const struct hisi_sas_hw *hw) | |
1921 | { | |
1922 | struct Scsi_Host *shost; | |
1923 | struct hisi_hba *hisi_hba; | |
1924 | struct device *dev = &pdev->dev; | |
1925 | struct asd_sas_phy **arr_phy; | |
1926 | struct asd_sas_port **arr_port; | |
1927 | struct sas_ha_struct *sha; | |
1928 | int rc, phy_nr, port_nr, i; | |
1929 | ||
1930 | shost = hisi_sas_shost_alloc(pdev, hw); | |
d37a0082 XT |
1931 | if (!shost) |
1932 | return -ENOMEM; | |
7eb7869f JG |
1933 | |
1934 | sha = SHOST_TO_SAS_HA(shost); | |
1935 | hisi_hba = shost_priv(shost); | |
1936 | platform_set_drvdata(pdev, sha); | |
50cb916f | 1937 | |
7eb7869f JG |
1938 | phy_nr = port_nr = hisi_hba->n_phy; |
1939 | ||
1940 | arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); | |
1941 | arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); | |
d37a0082 XT |
1942 | if (!arr_phy || !arr_port) { |
1943 | rc = -ENOMEM; | |
1944 | goto err_out_ha; | |
1945 | } | |
7eb7869f JG |
1946 | |
1947 | sha->sas_phy = arr_phy; | |
1948 | sha->sas_port = arr_port; | |
7eb7869f JG |
1949 | sha->lldd_ha = hisi_hba; |
1950 | ||
1951 | shost->transportt = hisi_sas_stt; | |
1952 | shost->max_id = HISI_SAS_MAX_DEVICES; | |
1953 | shost->max_lun = ~0; | |
1954 | shost->max_channel = 1; | |
1955 | shost->max_cmd_len = 16; | |
1956 | shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT); | |
a8d547bd JG |
1957 | shost->can_queue = hisi_hba->hw->max_command_entries; |
1958 | shost->cmd_per_lun = hisi_hba->hw->max_command_entries; | |
7eb7869f JG |
1959 | |
1960 | sha->sas_ha_name = DRV_NAME; | |
11b75249 | 1961 | sha->dev = hisi_hba->dev; |
7eb7869f JG |
1962 | sha->lldd_module = THIS_MODULE; |
1963 | sha->sas_addr = &hisi_hba->sas_addr[0]; | |
1964 | sha->num_phys = hisi_hba->n_phy; | |
1965 | sha->core.shost = hisi_hba->shost; | |
1966 | ||
1967 | for (i = 0; i < hisi_hba->n_phy; i++) { | |
1968 | sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; | |
1969 | sha->sas_port[i] = &hisi_hba->port[i].sas_port; | |
1970 | } | |
1971 | ||
5d74242e JG |
1972 | hisi_sas_init_add(hisi_hba); |
1973 | ||
7eb7869f JG |
1974 | rc = scsi_add_host(shost, &pdev->dev); |
1975 | if (rc) | |
1976 | goto err_out_ha; | |
1977 | ||
1978 | rc = sas_register_ha(sha); | |
1979 | if (rc) | |
1980 | goto err_out_register_ha; | |
1981 | ||
0757f041 XC |
1982 | rc = hisi_hba->hw->hw_init(hisi_hba); |
1983 | if (rc) | |
1984 | goto err_out_register_ha; | |
1985 | ||
7eb7869f JG |
1986 | scsi_scan_host(shost); |
1987 | ||
1988 | return 0; | |
1989 | ||
1990 | err_out_register_ha: | |
1991 | scsi_remove_host(shost); | |
1992 | err_out_ha: | |
d37a0082 | 1993 | hisi_sas_free(hisi_hba); |
76aae5f6 | 1994 | scsi_host_put(shost); |
7eb7869f JG |
1995 | return rc; |
1996 | } | |
1997 | EXPORT_SYMBOL_GPL(hisi_sas_probe); | |
1998 | ||
89d53322 JG |
1999 | int hisi_sas_remove(struct platform_device *pdev) |
2000 | { | |
2001 | struct sas_ha_struct *sha = platform_get_drvdata(pdev); | |
2002 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
d37a0082 | 2003 | struct Scsi_Host *shost = sha->core.shost; |
89d53322 | 2004 | |
89d53322 JG |
2005 | sas_unregister_ha(sha); |
2006 | sas_remove_host(sha->core.shost); | |
2007 | ||
2008 | hisi_sas_free(hisi_hba); | |
76aae5f6 | 2009 | scsi_host_put(shost); |
89d53322 JG |
2010 | return 0; |
2011 | } | |
2012 | EXPORT_SYMBOL_GPL(hisi_sas_remove); | |
2013 | ||
e8899fad JG |
2014 | static __init int hisi_sas_init(void) |
2015 | { | |
e8899fad JG |
2016 | hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); |
2017 | if (!hisi_sas_stt) | |
2018 | return -ENOMEM; | |
2019 | ||
2020 | return 0; | |
2021 | } | |
2022 | ||
2023 | static __exit void hisi_sas_exit(void) | |
2024 | { | |
2025 | sas_release_transport(hisi_sas_stt); | |
2026 | } | |
2027 | ||
2028 | module_init(hisi_sas_init); | |
2029 | module_exit(hisi_sas_exit); | |
2030 | ||
e8899fad JG |
2031 | MODULE_LICENSE("GPL"); |
2032 | MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); | |
2033 | MODULE_DESCRIPTION("HISILICON SAS controller driver"); | |
2034 | MODULE_ALIAS("platform:" DRV_NAME); |