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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); |
066312f6 XT |
25 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
26 | void *funcdata); | |
cac9b2a2 | 27 | |
6c7bb8a1 XC |
28 | u8 hisi_sas_get_ata_protocol(u8 cmd, int direction) |
29 | { | |
30 | switch (cmd) { | |
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: | |
36 | return HISI_SAS_SATA_PROTOCOL_FPDMA; | |
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: | |
48 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
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: |
6c7bb8a1 XC |
67 | return HISI_SAS_SATA_PROTOCOL_DMA; |
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: |
6c7bb8a1 XC |
80 | return HISI_SAS_SATA_PROTOCOL_NONDATA; |
81 | default: | |
82 | if (direction == DMA_NONE) | |
83 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
84 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
85 | } | |
86 | } | |
87 | EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol); | |
88 | ||
75904077 XC |
89 | void hisi_sas_sata_done(struct sas_task *task, |
90 | struct hisi_sas_slot *slot) | |
91 | { | |
92 | struct task_status_struct *ts = &task->task_status; | |
93 | struct ata_task_resp *resp = (struct ata_task_resp *)ts->buf; | |
f557e32c XT |
94 | struct hisi_sas_status_buffer *status_buf = |
95 | hisi_sas_status_buf_addr_mem(slot); | |
96 | u8 *iu = &status_buf->iu[0]; | |
97 | struct dev_to_host_fis *d2h = (struct dev_to_host_fis *)iu; | |
75904077 XC |
98 | |
99 | resp->frame_len = sizeof(struct dev_to_host_fis); | |
100 | memcpy(&resp->ending_fis[0], d2h, sizeof(struct dev_to_host_fis)); | |
101 | ||
102 | ts->buf_valid_size = sizeof(*resp); | |
103 | } | |
104 | EXPORT_SYMBOL_GPL(hisi_sas_sata_done); | |
105 | ||
318913c6 XC |
106 | int hisi_sas_get_ncq_tag(struct sas_task *task, u32 *tag) |
107 | { | |
108 | struct ata_queued_cmd *qc = task->uldd_task; | |
109 | ||
110 | if (qc) { | |
111 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || | |
112 | qc->tf.command == ATA_CMD_FPDMA_READ) { | |
113 | *tag = qc->tag; | |
114 | return 1; | |
115 | } | |
116 | } | |
117 | return 0; | |
118 | } | |
119 | EXPORT_SYMBOL_GPL(hisi_sas_get_ncq_tag); | |
120 | ||
42e7a693 JG |
121 | static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device) |
122 | { | |
123 | return device->port->ha->lldd_ha; | |
124 | } | |
125 | ||
2e244f0f JG |
126 | struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port) |
127 | { | |
128 | return container_of(sas_port, struct hisi_sas_port, sas_port); | |
129 | } | |
130 | EXPORT_SYMBOL_GPL(to_hisi_sas_port); | |
131 | ||
a25d0d3d XC |
132 | void hisi_sas_stop_phys(struct hisi_hba *hisi_hba) |
133 | { | |
134 | int phy_no; | |
135 | ||
136 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) | |
137 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
138 | } | |
139 | EXPORT_SYMBOL_GPL(hisi_sas_stop_phys); | |
140 | ||
257efd1f JG |
141 | static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) |
142 | { | |
143 | void *bitmap = hisi_hba->slot_index_tags; | |
144 | ||
145 | clear_bit(slot_idx, bitmap); | |
146 | } | |
147 | ||
42e7a693 JG |
148 | static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx) |
149 | { | |
150 | hisi_sas_slot_index_clear(hisi_hba, slot_idx); | |
151 | } | |
152 | ||
153 | static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx) | |
154 | { | |
155 | void *bitmap = hisi_hba->slot_index_tags; | |
156 | ||
157 | set_bit(slot_idx, bitmap); | |
158 | } | |
159 | ||
160 | static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, int *slot_idx) | |
161 | { | |
162 | unsigned int index; | |
163 | void *bitmap = hisi_hba->slot_index_tags; | |
164 | ||
165 | index = find_first_zero_bit(bitmap, hisi_hba->slot_index_count); | |
166 | if (index >= hisi_hba->slot_index_count) | |
167 | return -SAS_QUEUE_FULL; | |
168 | hisi_sas_slot_index_set(hisi_hba, index); | |
169 | *slot_idx = index; | |
170 | return 0; | |
171 | } | |
172 | ||
257efd1f JG |
173 | static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) |
174 | { | |
175 | int i; | |
176 | ||
177 | for (i = 0; i < hisi_hba->slot_index_count; ++i) | |
178 | hisi_sas_slot_index_clear(hisi_hba, i); | |
179 | } | |
27a3f229 JG |
180 | |
181 | void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, | |
182 | struct hisi_sas_slot *slot) | |
183 | { | |
27a3f229 | 184 | |
d3c4dd4e | 185 | if (task) { |
11b75249 | 186 | struct device *dev = hisi_hba->dev; |
d3c4dd4e JG |
187 | struct domain_device *device = task->dev; |
188 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
27a3f229 | 189 | |
6ba0fbc3 XT |
190 | if (!task->lldd_task) |
191 | return; | |
192 | ||
193 | task->lldd_task = NULL; | |
194 | ||
d3c4dd4e JG |
195 | if (!sas_protocol_ata(task->task_proto)) |
196 | if (slot->n_elem) | |
35d339f1 XC |
197 | dma_unmap_sg(dev, task->scatter, |
198 | task->num_scatter, | |
d3c4dd4e JG |
199 | task->data_dir); |
200 | ||
d3c4dd4e JG |
201 | if (sas_dev) |
202 | atomic64_dec(&sas_dev->running_req); | |
203 | } | |
27a3f229 | 204 | |
f557e32c XT |
205 | if (slot->buf) |
206 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, slot->buf_dma); | |
27a3f229 | 207 | |
27a3f229 | 208 | list_del_init(&slot->entry); |
6ba0fbc3 | 209 | slot->buf = NULL; |
27a3f229 JG |
210 | slot->task = NULL; |
211 | slot->port = NULL; | |
212 | hisi_sas_slot_index_free(hisi_hba, slot->idx); | |
d3c4dd4e | 213 | |
59ba49f9 | 214 | /* slot memory is fully zeroed when it is reused */ |
27a3f229 JG |
215 | } |
216 | EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free); | |
217 | ||
66ee999b JG |
218 | static int hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba, |
219 | struct hisi_sas_slot *slot) | |
220 | { | |
221 | return hisi_hba->hw->prep_smp(hisi_hba, slot); | |
222 | } | |
223 | ||
42e7a693 JG |
224 | static int hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba, |
225 | struct hisi_sas_slot *slot, int is_tmf, | |
226 | struct hisi_sas_tmf_task *tmf) | |
227 | { | |
228 | return hisi_hba->hw->prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
229 | } | |
230 | ||
6f2ff1a1 JG |
231 | static int hisi_sas_task_prep_ata(struct hisi_hba *hisi_hba, |
232 | struct hisi_sas_slot *slot) | |
233 | { | |
234 | return hisi_hba->hw->prep_stp(hisi_hba, slot); | |
235 | } | |
236 | ||
441c2740 JG |
237 | static int hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba, |
238 | struct hisi_sas_slot *slot, | |
239 | int device_id, int abort_flag, int tag_to_abort) | |
240 | { | |
241 | return hisi_hba->hw->prep_abort(hisi_hba, slot, | |
242 | device_id, abort_flag, tag_to_abort); | |
243 | } | |
244 | ||
cac9b2a2 JG |
245 | /* |
246 | * This function will issue an abort TMF regardless of whether the | |
247 | * task is in the sdev or not. Then it will do the task complete | |
248 | * cleanup and callbacks. | |
249 | */ | |
250 | static void hisi_sas_slot_abort(struct work_struct *work) | |
251 | { | |
252 | struct hisi_sas_slot *abort_slot = | |
253 | container_of(work, struct hisi_sas_slot, abort_slot); | |
254 | struct sas_task *task = abort_slot->task; | |
255 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
256 | struct scsi_cmnd *cmnd = task->uldd_task; | |
257 | struct hisi_sas_tmf_task tmf_task; | |
cac9b2a2 | 258 | struct scsi_lun lun; |
11b75249 | 259 | struct device *dev = hisi_hba->dev; |
cac9b2a2 | 260 | int tag = abort_slot->idx; |
da7b66e7 | 261 | unsigned long flags; |
cac9b2a2 JG |
262 | |
263 | if (!(task->task_proto & SAS_PROTOCOL_SSP)) { | |
264 | dev_err(dev, "cannot abort slot for non-ssp task\n"); | |
265 | goto out; | |
266 | } | |
267 | ||
268 | int_to_scsilun(cmnd->device->lun, &lun); | |
269 | tmf_task.tmf = TMF_ABORT_TASK; | |
270 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
271 | ||
272 | hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, &tmf_task); | |
273 | out: | |
274 | /* Do cleanup for this task */ | |
da7b66e7 | 275 | spin_lock_irqsave(&hisi_hba->lock, flags); |
cac9b2a2 | 276 | hisi_sas_slot_task_free(hisi_hba, task, abort_slot); |
da7b66e7 | 277 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
cac9b2a2 JG |
278 | if (task->task_done) |
279 | task->task_done(task); | |
cac9b2a2 JG |
280 | } |
281 | ||
b1a49412 XC |
282 | static int hisi_sas_task_prep(struct sas_task *task, struct hisi_sas_dq |
283 | *dq, int is_tmf, struct hisi_sas_tmf_task *tmf, | |
284 | int *pass) | |
42e7a693 | 285 | { |
b1a49412 | 286 | struct hisi_hba *hisi_hba = dq->hisi_hba; |
42e7a693 JG |
287 | struct domain_device *device = task->dev; |
288 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
289 | struct hisi_sas_port *port; | |
290 | struct hisi_sas_slot *slot; | |
291 | struct hisi_sas_cmd_hdr *cmd_hdr_base; | |
2e244f0f | 292 | struct asd_sas_port *sas_port = device->port; |
11b75249 | 293 | struct device *dev = hisi_hba->dev; |
42e7a693 | 294 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
54c9dd2d | 295 | unsigned long flags; |
42e7a693 | 296 | |
2e244f0f | 297 | if (!sas_port) { |
42e7a693 JG |
298 | struct task_status_struct *ts = &task->task_status; |
299 | ||
300 | ts->resp = SAS_TASK_UNDELIVERED; | |
301 | ts->stat = SAS_PHY_DOWN; | |
302 | /* | |
303 | * libsas will use dev->port, should | |
304 | * not call task_done for sata | |
305 | */ | |
306 | if (device->dev_type != SAS_SATA_DEV) | |
307 | task->task_done(task); | |
ddabca21 | 308 | return SAS_PHY_DOWN; |
42e7a693 JG |
309 | } |
310 | ||
311 | if (DEV_IS_GONE(sas_dev)) { | |
312 | if (sas_dev) | |
ad604832 | 313 | dev_info(dev, "task prep: device %d not ready\n", |
42e7a693 JG |
314 | sas_dev->device_id); |
315 | else | |
316 | dev_info(dev, "task prep: device %016llx not ready\n", | |
317 | SAS_ADDR(device->sas_addr)); | |
318 | ||
ddabca21 | 319 | return SAS_PHY_DOWN; |
42e7a693 | 320 | } |
2e244f0f JG |
321 | |
322 | port = to_hisi_sas_port(sas_port); | |
9859f24e | 323 | if (port && !port->port_attached) { |
09fe9ecb | 324 | dev_info(dev, "task prep: %s port%d not attach device\n", |
6073b771 | 325 | (dev_is_sata(device)) ? |
09fe9ecb JG |
326 | "SATA/STP" : "SAS", |
327 | device->port->id); | |
328 | ||
329 | return SAS_PHY_DOWN; | |
42e7a693 JG |
330 | } |
331 | ||
332 | if (!sas_protocol_ata(task->task_proto)) { | |
333 | if (task->num_scatter) { | |
334 | n_elem = dma_map_sg(dev, task->scatter, | |
335 | task->num_scatter, task->data_dir); | |
336 | if (!n_elem) { | |
337 | rc = -ENOMEM; | |
338 | goto prep_out; | |
339 | } | |
340 | } | |
341 | } else | |
342 | n_elem = task->num_scatter; | |
343 | ||
b1a49412 | 344 | spin_lock_irqsave(&hisi_hba->lock, flags); |
685b6d6e JG |
345 | if (hisi_hba->hw->slot_index_alloc) |
346 | rc = hisi_hba->hw->slot_index_alloc(hisi_hba, &slot_idx, | |
347 | device); | |
348 | else | |
349 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); | |
b1a49412 XC |
350 | if (rc) { |
351 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
42e7a693 | 352 | goto err_out; |
b1a49412 XC |
353 | } |
354 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
355 | ||
356 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
42e7a693 JG |
357 | if (rc) |
358 | goto err_out_tag; | |
359 | ||
b1a49412 XC |
360 | dlvry_queue = dq->id; |
361 | dlvry_queue_slot = dq->wr_point; | |
42e7a693 JG |
362 | slot = &hisi_hba->slot_info[slot_idx]; |
363 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
364 | ||
365 | slot->idx = slot_idx; | |
366 | slot->n_elem = n_elem; | |
367 | slot->dlvry_queue = dlvry_queue; | |
368 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
369 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
370 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
371 | slot->task = task; | |
372 | slot->port = port; | |
373 | task->lldd_task = slot; | |
cac9b2a2 | 374 | INIT_WORK(&slot->abort_slot, hisi_sas_slot_abort); |
42e7a693 | 375 | |
f557e32c XT |
376 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
377 | GFP_ATOMIC, &slot->buf_dma); | |
378 | if (!slot->buf) { | |
9c9d18e7 | 379 | rc = -ENOMEM; |
42e7a693 | 380 | goto err_out_slot_buf; |
9c9d18e7 | 381 | } |
42e7a693 | 382 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
f557e32c XT |
383 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
384 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
42e7a693 JG |
385 | |
386 | switch (task->task_proto) { | |
66ee999b JG |
387 | case SAS_PROTOCOL_SMP: |
388 | rc = hisi_sas_task_prep_smp(hisi_hba, slot); | |
389 | break; | |
42e7a693 JG |
390 | case SAS_PROTOCOL_SSP: |
391 | rc = hisi_sas_task_prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
392 | break; | |
393 | case SAS_PROTOCOL_SATA: | |
394 | case SAS_PROTOCOL_STP: | |
395 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
6f2ff1a1 JG |
396 | rc = hisi_sas_task_prep_ata(hisi_hba, slot); |
397 | break; | |
42e7a693 JG |
398 | default: |
399 | dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n", | |
400 | task->task_proto); | |
401 | rc = -EINVAL; | |
402 | break; | |
403 | } | |
404 | ||
405 | if (rc) { | |
406 | dev_err(dev, "task prep: rc = 0x%x\n", rc); | |
f557e32c | 407 | goto err_out_buf; |
42e7a693 JG |
408 | } |
409 | ||
9feaf909 | 410 | spin_lock_irqsave(&hisi_hba->lock, flags); |
405314df | 411 | list_add_tail(&slot->entry, &sas_dev->list); |
9feaf909 | 412 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
54c9dd2d | 413 | spin_lock_irqsave(&task->task_state_lock, flags); |
42e7a693 | 414 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 415 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
42e7a693 | 416 | |
b1a49412 | 417 | dq->slot_prep = slot; |
42e7a693 | 418 | |
f696cc32 | 419 | atomic64_inc(&sas_dev->running_req); |
42e7a693 JG |
420 | ++(*pass); |
421 | ||
9c9d18e7 | 422 | return 0; |
42e7a693 | 423 | |
f557e32c XT |
424 | err_out_buf: |
425 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
426 | slot->buf_dma); | |
42e7a693 JG |
427 | err_out_slot_buf: |
428 | /* Nothing to be done */ | |
429 | err_out_tag: | |
b1a49412 | 430 | spin_lock_irqsave(&hisi_hba->lock, flags); |
42e7a693 | 431 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 | 432 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
42e7a693 JG |
433 | err_out: |
434 | dev_err(dev, "task prep: failed[%d]!\n", rc); | |
435 | if (!sas_protocol_ata(task->task_proto)) | |
436 | if (n_elem) | |
35d339f1 XC |
437 | dma_unmap_sg(dev, task->scatter, |
438 | task->num_scatter, | |
42e7a693 JG |
439 | task->data_dir); |
440 | prep_out: | |
441 | return rc; | |
442 | } | |
443 | ||
444 | static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, | |
445 | int is_tmf, struct hisi_sas_tmf_task *tmf) | |
446 | { | |
447 | u32 rc; | |
448 | u32 pass = 0; | |
449 | unsigned long flags; | |
450 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
11b75249 | 451 | struct device *dev = hisi_hba->dev; |
b1a49412 XC |
452 | struct domain_device *device = task->dev; |
453 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
454 | struct hisi_sas_dq *dq = sas_dev->dq; | |
42e7a693 | 455 | |
917d3bda | 456 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
457 | return -EINVAL; |
458 | ||
42e7a693 | 459 | /* protect task_prep and start_delivery sequence */ |
b1a49412 XC |
460 | spin_lock_irqsave(&dq->lock, flags); |
461 | rc = hisi_sas_task_prep(task, dq, is_tmf, tmf, &pass); | |
42e7a693 JG |
462 | if (rc) |
463 | dev_err(dev, "task exec: failed[%d]!\n", rc); | |
464 | ||
465 | if (likely(pass)) | |
b1a49412 XC |
466 | hisi_hba->hw->start_delivery(dq); |
467 | spin_unlock_irqrestore(&dq->lock, flags); | |
42e7a693 JG |
468 | |
469 | return rc; | |
470 | } | |
257efd1f | 471 | |
66139921 JG |
472 | static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no) |
473 | { | |
474 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
475 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
476 | struct sas_ha_struct *sas_ha; | |
477 | ||
478 | if (!phy->phy_attached) | |
479 | return; | |
480 | ||
481 | sas_ha = &hisi_hba->sha; | |
482 | sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); | |
483 | ||
484 | if (sas_phy->phy) { | |
485 | struct sas_phy *sphy = sas_phy->phy; | |
486 | ||
487 | sphy->negotiated_linkrate = sas_phy->linkrate; | |
66139921 | 488 | sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; |
2ae75787 XC |
489 | sphy->maximum_linkrate_hw = |
490 | hisi_hba->hw->phy_get_max_linkrate(); | |
491 | if (sphy->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
492 | sphy->minimum_linkrate = phy->minimum_linkrate; | |
493 | ||
494 | if (sphy->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
495 | sphy->maximum_linkrate = phy->maximum_linkrate; | |
66139921 JG |
496 | } |
497 | ||
498 | if (phy->phy_type & PORT_TYPE_SAS) { | |
499 | struct sas_identify_frame *id; | |
500 | ||
501 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
502 | id->dev_type = phy->identify.device_type; | |
503 | id->initiator_bits = SAS_PROTOCOL_ALL; | |
504 | id->target_bits = phy->identify.target_port_protocols; | |
505 | } else if (phy->phy_type & PORT_TYPE_SATA) { | |
506 | /*Nothing*/ | |
507 | } | |
508 | ||
509 | sas_phy->frame_rcvd_size = phy->frame_rcvd_size; | |
510 | sas_ha->notify_port_event(sas_phy, PORTE_BYTES_DMAED); | |
511 | } | |
512 | ||
abda97c2 JG |
513 | static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) |
514 | { | |
515 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
516 | struct hisi_sas_device *sas_dev = NULL; | |
302e0901 | 517 | unsigned long flags; |
abda97c2 JG |
518 | int i; |
519 | ||
302e0901 | 520 | spin_lock_irqsave(&hisi_hba->lock, flags); |
abda97c2 JG |
521 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
522 | if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) { | |
b1a49412 XC |
523 | int queue = i % hisi_hba->queue_count; |
524 | struct hisi_sas_dq *dq = &hisi_hba->dq[queue]; | |
525 | ||
abda97c2 JG |
526 | hisi_hba->devices[i].device_id = i; |
527 | sas_dev = &hisi_hba->devices[i]; | |
528 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
529 | sas_dev->dev_type = device->dev_type; | |
530 | sas_dev->hisi_hba = hisi_hba; | |
531 | sas_dev->sas_device = device; | |
b1a49412 | 532 | sas_dev->dq = dq; |
405314df | 533 | INIT_LIST_HEAD(&hisi_hba->devices[i].list); |
abda97c2 JG |
534 | break; |
535 | } | |
536 | } | |
302e0901 | 537 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
abda97c2 JG |
538 | |
539 | return sas_dev; | |
540 | } | |
541 | ||
542 | static int hisi_sas_dev_found(struct domain_device *device) | |
543 | { | |
544 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
545 | struct domain_device *parent_dev = device->parent; | |
546 | struct hisi_sas_device *sas_dev; | |
11b75249 | 547 | struct device *dev = hisi_hba->dev; |
abda97c2 | 548 | |
685b6d6e JG |
549 | if (hisi_hba->hw->alloc_dev) |
550 | sas_dev = hisi_hba->hw->alloc_dev(device); | |
551 | else | |
552 | sas_dev = hisi_sas_alloc_dev(device); | |
abda97c2 JG |
553 | if (!sas_dev) { |
554 | dev_err(dev, "fail alloc dev: max support %d devices\n", | |
555 | HISI_SAS_MAX_DEVICES); | |
556 | return -EINVAL; | |
557 | } | |
558 | ||
559 | device->lldd_dev = sas_dev; | |
560 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); | |
561 | ||
562 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { | |
563 | int phy_no; | |
564 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
565 | struct ex_phy *phy; | |
566 | ||
567 | for (phy_no = 0; phy_no < phy_num; phy_no++) { | |
568 | phy = &parent_dev->ex_dev.ex_phy[phy_no]; | |
569 | if (SAS_ADDR(phy->attached_sas_addr) == | |
570 | SAS_ADDR(device->sas_addr)) { | |
571 | sas_dev->attached_phy = phy_no; | |
572 | break; | |
573 | } | |
574 | } | |
575 | ||
576 | if (phy_no == phy_num) { | |
577 | dev_info(dev, "dev found: no attached " | |
578 | "dev:%016llx at ex:%016llx\n", | |
579 | SAS_ADDR(device->sas_addr), | |
580 | SAS_ADDR(parent_dev->sas_addr)); | |
581 | return -EINVAL; | |
582 | } | |
583 | } | |
584 | ||
081a1608 XC |
585 | dev_info(dev, "dev[%d:%x] found\n", |
586 | sas_dev->device_id, sas_dev->dev_type); | |
587 | ||
abda97c2 JG |
588 | return 0; |
589 | } | |
590 | ||
31eec8a6 JG |
591 | static int hisi_sas_slave_configure(struct scsi_device *sdev) |
592 | { | |
593 | struct domain_device *dev = sdev_to_domain_dev(sdev); | |
594 | int ret = sas_slave_configure(sdev); | |
595 | ||
596 | if (ret) | |
597 | return ret; | |
598 | if (!dev_is_sata(dev)) | |
599 | sas_change_queue_depth(sdev, 64); | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
701f75ec JG |
604 | static void hisi_sas_scan_start(struct Scsi_Host *shost) |
605 | { | |
606 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
701f75ec | 607 | |
396b8044 | 608 | hisi_hba->hw->phys_init(hisi_hba); |
701f75ec JG |
609 | } |
610 | ||
611 | static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
612 | { | |
613 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
614 | struct sas_ha_struct *sha = &hisi_hba->sha; | |
615 | ||
396b8044 JG |
616 | /* Wait for PHY up interrupt to occur */ |
617 | if (time < HZ) | |
701f75ec JG |
618 | return 0; |
619 | ||
620 | sas_drain_work(sha); | |
621 | return 1; | |
622 | } | |
623 | ||
66139921 JG |
624 | static void hisi_sas_phyup_work(struct work_struct *work) |
625 | { | |
626 | struct hisi_sas_phy *phy = | |
320cd6f1 | 627 | container_of(work, typeof(*phy), works[HISI_PHYE_PHY_UP]); |
66139921 JG |
628 | struct hisi_hba *hisi_hba = phy->hisi_hba; |
629 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
630 | int phy_no = sas_phy->id; | |
631 | ||
632 | hisi_hba->hw->sl_notify(hisi_hba, phy_no); /* This requires a sleep */ | |
633 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
634 | } | |
976867e6 | 635 | |
066312f6 XT |
636 | static void hisi_sas_linkreset_work(struct work_struct *work) |
637 | { | |
638 | struct hisi_sas_phy *phy = | |
639 | container_of(work, typeof(*phy), works[HISI_PHYE_LINK_RESET]); | |
640 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
641 | ||
642 | hisi_sas_control_phy(sas_phy, PHY_FUNC_LINK_RESET, NULL); | |
643 | } | |
644 | ||
320cd6f1 XT |
645 | static const work_func_t hisi_sas_phye_fns[HISI_PHYES_NUM] = { |
646 | [HISI_PHYE_PHY_UP] = hisi_sas_phyup_work, | |
066312f6 | 647 | [HISI_PHYE_LINK_RESET] = hisi_sas_linkreset_work, |
320cd6f1 XT |
648 | }; |
649 | ||
650 | bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy, | |
651 | enum hisi_sas_phy_event event) | |
652 | { | |
653 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
654 | ||
655 | if (WARN_ON(event >= HISI_PHYES_NUM)) | |
656 | return false; | |
657 | ||
658 | return queue_work(hisi_hba->wq, &phy->works[event]); | |
659 | } | |
660 | EXPORT_SYMBOL_GPL(hisi_sas_notify_phy_event); | |
661 | ||
976867e6 JG |
662 | static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no) |
663 | { | |
664 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
665 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
320cd6f1 | 666 | int i; |
976867e6 JG |
667 | |
668 | phy->hisi_hba = hisi_hba; | |
669 | phy->port = NULL; | |
976867e6 JG |
670 | sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0; |
671 | sas_phy->class = SAS; | |
672 | sas_phy->iproto = SAS_PROTOCOL_ALL; | |
673 | sas_phy->tproto = 0; | |
674 | sas_phy->type = PHY_TYPE_PHYSICAL; | |
675 | sas_phy->role = PHY_ROLE_INITIATOR; | |
676 | sas_phy->oob_mode = OOB_NOT_CONNECTED; | |
677 | sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; | |
678 | sas_phy->id = phy_no; | |
679 | sas_phy->sas_addr = &hisi_hba->sas_addr[0]; | |
680 | sas_phy->frame_rcvd = &phy->frame_rcvd[0]; | |
681 | sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata; | |
682 | sas_phy->lldd_phy = phy; | |
66139921 | 683 | |
320cd6f1 XT |
684 | for (i = 0; i < HISI_PHYES_NUM; i++) |
685 | INIT_WORK(&phy->works[i], hisi_sas_phye_fns[i]); | |
976867e6 JG |
686 | } |
687 | ||
184a4635 JG |
688 | static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy) |
689 | { | |
690 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
691 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
692 | struct hisi_sas_phy *phy = sas_phy->lldd_phy; | |
693 | struct asd_sas_port *sas_port = sas_phy->port; | |
2e244f0f | 694 | struct hisi_sas_port *port = to_hisi_sas_port(sas_port); |
184a4635 JG |
695 | unsigned long flags; |
696 | ||
697 | if (!sas_port) | |
698 | return; | |
699 | ||
700 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
701 | port->port_attached = 1; | |
702 | port->id = phy->port_id; | |
703 | phy->port = port; | |
704 | sas_port->lldd_port = port; | |
705 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
706 | } | |
707 | ||
d3c4dd4e | 708 | static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, struct sas_task *task, |
405314df | 709 | struct hisi_sas_slot *slot) |
184a4635 | 710 | { |
d3c4dd4e JG |
711 | if (task) { |
712 | unsigned long flags; | |
713 | struct task_status_struct *ts; | |
184a4635 | 714 | |
d3c4dd4e | 715 | ts = &task->task_status; |
184a4635 | 716 | |
d3c4dd4e JG |
717 | ts->resp = SAS_TASK_COMPLETE; |
718 | ts->stat = SAS_ABORTED_TASK; | |
719 | spin_lock_irqsave(&task->task_state_lock, flags); | |
720 | task->task_state_flags &= | |
721 | ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); | |
722 | task->task_state_flags |= SAS_TASK_STATE_DONE; | |
723 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
724 | } | |
184a4635 | 725 | |
405314df | 726 | hisi_sas_slot_task_free(hisi_hba, task, slot); |
184a4635 JG |
727 | } |
728 | ||
405314df | 729 | /* hisi_hba.lock should be locked */ |
184a4635 JG |
730 | static void hisi_sas_release_task(struct hisi_hba *hisi_hba, |
731 | struct domain_device *device) | |
732 | { | |
405314df JG |
733 | struct hisi_sas_slot *slot, *slot2; |
734 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
184a4635 | 735 | |
405314df JG |
736 | list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) |
737 | hisi_sas_do_release_task(hisi_hba, slot->task, slot); | |
184a4635 JG |
738 | } |
739 | ||
06ec0fb9 XC |
740 | static void hisi_sas_release_tasks(struct hisi_hba *hisi_hba) |
741 | { | |
405314df JG |
742 | struct hisi_sas_device *sas_dev; |
743 | struct domain_device *device; | |
06ec0fb9 XC |
744 | int i; |
745 | ||
405314df JG |
746 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
747 | sas_dev = &hisi_hba->devices[i]; | |
748 | device = sas_dev->sas_device; | |
06ec0fb9 | 749 | |
405314df JG |
750 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || |
751 | !device) | |
06ec0fb9 | 752 | continue; |
405314df JG |
753 | |
754 | hisi_sas_release_task(hisi_hba, device); | |
06ec0fb9 XC |
755 | } |
756 | } | |
757 | ||
d30ff263 XC |
758 | static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba, |
759 | struct domain_device *device) | |
760 | { | |
761 | if (hisi_hba->hw->dereg_device) | |
762 | hisi_hba->hw->dereg_device(hisi_hba, device); | |
763 | } | |
764 | ||
abda97c2 JG |
765 | static void hisi_sas_dev_gone(struct domain_device *device) |
766 | { | |
767 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
768 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 769 | struct device *dev = hisi_hba->dev; |
abda97c2 | 770 | |
081a1608 | 771 | dev_info(dev, "dev[%d:%x] is gone\n", |
abda97c2 JG |
772 | sas_dev->device_id, sas_dev->dev_type); |
773 | ||
1028b853 XC |
774 | if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) { |
775 | hisi_sas_internal_task_abort(hisi_hba, device, | |
40f2702b JG |
776 | HISI_SAS_INT_ABT_DEV, 0); |
777 | ||
1028b853 XC |
778 | hisi_sas_dereg_device(hisi_hba, device); |
779 | ||
780 | hisi_hba->hw->clear_itct(hisi_hba, sas_dev); | |
781 | device->lldd_dev = NULL; | |
782 | memset(sas_dev, 0, sizeof(*sas_dev)); | |
783 | } | |
d30ff263 | 784 | |
f39943ee XT |
785 | if (hisi_hba->hw->free_device) |
786 | hisi_hba->hw->free_device(sas_dev); | |
abda97c2 | 787 | sas_dev->dev_type = SAS_PHY_UNUSED; |
abda97c2 | 788 | } |
42e7a693 JG |
789 | |
790 | static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) | |
791 | { | |
792 | return hisi_sas_task_exec(task, gfp_flags, 0, NULL); | |
793 | } | |
794 | ||
e4189d53 JG |
795 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
796 | void *funcdata) | |
797 | { | |
798 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
799 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
800 | int phy_no = sas_phy->id; | |
801 | ||
802 | switch (func) { | |
803 | case PHY_FUNC_HARD_RESET: | |
804 | hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no); | |
805 | break; | |
806 | ||
807 | case PHY_FUNC_LINK_RESET: | |
b4c67a6c JG |
808 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); |
809 | msleep(100); | |
1eb8eeac | 810 | hisi_hba->hw->phy_start(hisi_hba, phy_no); |
e4189d53 JG |
811 | break; |
812 | ||
813 | case PHY_FUNC_DISABLE: | |
814 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
815 | break; | |
816 | ||
817 | case PHY_FUNC_SET_LINK_RATE: | |
2ae75787 XC |
818 | hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, funcdata); |
819 | break; | |
c52108c6 XT |
820 | case PHY_FUNC_GET_EVENTS: |
821 | if (hisi_hba->hw->get_events) { | |
822 | hisi_hba->hw->get_events(hisi_hba, phy_no); | |
823 | break; | |
824 | } | |
825 | /* fallthru */ | |
e4189d53 JG |
826 | case PHY_FUNC_RELEASE_SPINUP_HOLD: |
827 | default: | |
828 | return -EOPNOTSUPP; | |
829 | } | |
830 | return 0; | |
831 | } | |
184a4635 | 832 | |
0efff300 JG |
833 | static void hisi_sas_task_done(struct sas_task *task) |
834 | { | |
835 | if (!del_timer(&task->slow_task->timer)) | |
836 | return; | |
837 | complete(&task->slow_task->completion); | |
838 | } | |
839 | ||
77570eed | 840 | static void hisi_sas_tmf_timedout(struct timer_list *t) |
0efff300 | 841 | { |
77570eed KC |
842 | struct sas_task_slow *slow = from_timer(slow, t, timer); |
843 | struct sas_task *task = slow->task; | |
f64a6988 XC |
844 | unsigned long flags; |
845 | ||
846 | spin_lock_irqsave(&task->task_state_lock, flags); | |
847 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) | |
848 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; | |
849 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
0efff300 | 850 | |
0efff300 JG |
851 | complete(&task->slow_task->completion); |
852 | } | |
853 | ||
854 | #define TASK_TIMEOUT 20 | |
855 | #define TASK_RETRY 3 | |
856 | static int hisi_sas_exec_internal_tmf_task(struct domain_device *device, | |
857 | void *parameter, u32 para_len, | |
858 | struct hisi_sas_tmf_task *tmf) | |
859 | { | |
860 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
861 | struct hisi_hba *hisi_hba = sas_dev->hisi_hba; | |
11b75249 | 862 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
863 | struct sas_task *task; |
864 | int res, retry; | |
865 | ||
866 | for (retry = 0; retry < TASK_RETRY; retry++) { | |
867 | task = sas_alloc_slow_task(GFP_KERNEL); | |
868 | if (!task) | |
869 | return -ENOMEM; | |
870 | ||
871 | task->dev = device; | |
872 | task->task_proto = device->tproto; | |
873 | ||
7c594f04 XC |
874 | if (dev_is_sata(device)) { |
875 | task->ata_task.device_control_reg_update = 1; | |
876 | memcpy(&task->ata_task.fis, parameter, para_len); | |
877 | } else { | |
878 | memcpy(&task->ssp_task, parameter, para_len); | |
879 | } | |
0efff300 JG |
880 | task->task_done = hisi_sas_task_done; |
881 | ||
841b86f3 | 882 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
0efff300 JG |
883 | task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ; |
884 | add_timer(&task->slow_task->timer); | |
885 | ||
886 | res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf); | |
887 | ||
888 | if (res) { | |
889 | del_timer(&task->slow_task->timer); | |
890 | dev_err(dev, "abort tmf: executing internal task failed: %d\n", | |
891 | res); | |
892 | goto ex_err; | |
893 | } | |
894 | ||
895 | wait_for_completion(&task->slow_task->completion); | |
896 | res = TMF_RESP_FUNC_FAILED; | |
897 | /* Even TMF timed out, return direct. */ | |
898 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
899 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
d3c4dd4e JG |
900 | struct hisi_sas_slot *slot = task->lldd_task; |
901 | ||
081a1608 | 902 | dev_err(dev, "abort tmf: TMF task timeout and not done\n"); |
d3c4dd4e JG |
903 | if (slot) |
904 | slot->task = NULL; | |
905 | ||
0efff300 | 906 | goto ex_err; |
081a1608 XC |
907 | } else |
908 | dev_err(dev, "abort tmf: TMF task timeout\n"); | |
0efff300 JG |
909 | } |
910 | ||
911 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
1af1b808 | 912 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { |
0efff300 JG |
913 | res = TMF_RESP_FUNC_COMPLETE; |
914 | break; | |
915 | } | |
916 | ||
4ffde482 JG |
917 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
918 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
919 | res = TMF_RESP_FUNC_SUCC; | |
920 | break; | |
921 | } | |
922 | ||
0efff300 JG |
923 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
924 | task->task_status.stat == SAS_DATA_UNDERRUN) { | |
925 | /* no error, but return the number of bytes of | |
926 | * underrun | |
927 | */ | |
928 | dev_warn(dev, "abort tmf: task to dev %016llx " | |
929 | "resp: 0x%x sts 0x%x underrun\n", | |
930 | SAS_ADDR(device->sas_addr), | |
931 | task->task_status.resp, | |
932 | task->task_status.stat); | |
933 | res = task->task_status.residual; | |
934 | break; | |
935 | } | |
936 | ||
937 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
938 | task->task_status.stat == SAS_DATA_OVERRUN) { | |
939 | dev_warn(dev, "abort tmf: blocked task error\n"); | |
940 | res = -EMSGSIZE; | |
941 | break; | |
942 | } | |
943 | ||
944 | dev_warn(dev, "abort tmf: task to dev " | |
945 | "%016llx resp: 0x%x status 0x%x\n", | |
946 | SAS_ADDR(device->sas_addr), task->task_status.resp, | |
947 | task->task_status.stat); | |
948 | sas_free_task(task); | |
949 | task = NULL; | |
950 | } | |
951 | ex_err: | |
d2d7e7a0 XC |
952 | if (retry == TASK_RETRY) |
953 | dev_warn(dev, "abort tmf: executing internal task failed!\n"); | |
0efff300 JG |
954 | sas_free_task(task); |
955 | return res; | |
956 | } | |
957 | ||
7c594f04 XC |
958 | static void hisi_sas_fill_ata_reset_cmd(struct ata_device *dev, |
959 | bool reset, int pmp, u8 *fis) | |
960 | { | |
961 | struct ata_taskfile tf; | |
962 | ||
963 | ata_tf_init(dev, &tf); | |
964 | if (reset) | |
965 | tf.ctl |= ATA_SRST; | |
966 | else | |
967 | tf.ctl &= ~ATA_SRST; | |
968 | tf.command = ATA_CMD_DEV_RESET; | |
969 | ata_tf_to_fis(&tf, pmp, 0, fis); | |
970 | } | |
971 | ||
972 | static int hisi_sas_softreset_ata_disk(struct domain_device *device) | |
973 | { | |
974 | u8 fis[20] = {0}; | |
975 | struct ata_port *ap = device->sata_dev.ap; | |
976 | struct ata_link *link; | |
977 | int rc = TMF_RESP_FUNC_FAILED; | |
978 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 979 | struct device *dev = hisi_hba->dev; |
7c594f04 XC |
980 | int s = sizeof(struct host_to_dev_fis); |
981 | unsigned long flags; | |
982 | ||
983 | ata_for_each_link(link, ap, EDGE) { | |
984 | int pmp = sata_srst_pmp(link); | |
985 | ||
986 | hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis); | |
987 | rc = hisi_sas_exec_internal_tmf_task(device, fis, s, NULL); | |
988 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
989 | break; | |
990 | } | |
991 | ||
992 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
993 | ata_for_each_link(link, ap, EDGE) { | |
994 | int pmp = sata_srst_pmp(link); | |
995 | ||
996 | hisi_sas_fill_ata_reset_cmd(link->device, 0, pmp, fis); | |
997 | rc = hisi_sas_exec_internal_tmf_task(device, fis, | |
998 | s, NULL); | |
999 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1000 | dev_err(dev, "ata disk de-reset failed\n"); | |
1001 | } | |
1002 | } else { | |
1003 | dev_err(dev, "ata disk reset failed\n"); | |
1004 | } | |
1005 | ||
1006 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1007 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1008 | hisi_sas_release_task(hisi_hba, device); | |
1009 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1010 | } | |
1011 | ||
1012 | return rc; | |
1013 | } | |
1014 | ||
0efff300 JG |
1015 | static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device, |
1016 | u8 *lun, struct hisi_sas_tmf_task *tmf) | |
1017 | { | |
1018 | struct sas_ssp_task ssp_task; | |
1019 | ||
1020 | if (!(device->tproto & SAS_PROTOCOL_SSP)) | |
1021 | return TMF_RESP_FUNC_ESUPP; | |
1022 | ||
1023 | memcpy(ssp_task.LUN, lun, 8); | |
1024 | ||
1025 | return hisi_sas_exec_internal_tmf_task(device, &ssp_task, | |
1026 | sizeof(ssp_task), tmf); | |
1027 | } | |
1028 | ||
0b881a24 | 1029 | static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba) |
917d3bda | 1030 | { |
0b881a24 | 1031 | u32 state = hisi_hba->hw->get_phys_state(hisi_hba); |
917d3bda XT |
1032 | int i; |
1033 | ||
1034 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
0b881a24 XT |
1035 | struct hisi_sas_device *sas_dev = &hisi_hba->devices[i]; |
1036 | struct domain_device *device = sas_dev->sas_device; | |
1037 | struct asd_sas_port *sas_port; | |
1038 | struct hisi_sas_port *port; | |
1039 | struct hisi_sas_phy *phy = NULL; | |
1040 | struct asd_sas_phy *sas_phy; | |
1041 | ||
917d3bda | 1042 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) |
0b881a24 | 1043 | || !device || !device->port) |
917d3bda XT |
1044 | continue; |
1045 | ||
0b881a24 XT |
1046 | sas_port = device->port; |
1047 | port = to_hisi_sas_port(sas_port); | |
1048 | ||
1049 | list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el) | |
1050 | if (state & BIT(sas_phy->id)) { | |
1051 | phy = sas_phy->lldd_phy; | |
1052 | break; | |
1053 | } | |
1054 | ||
1055 | if (phy) { | |
1056 | port->id = phy->port_id; | |
917d3bda | 1057 | |
0b881a24 XT |
1058 | /* Update linkrate of directly attached device. */ |
1059 | if (!device->parent) | |
1060 | device->linkrate = phy->sas_phy.linkrate; | |
917d3bda | 1061 | |
0b881a24 XT |
1062 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); |
1063 | } else | |
1064 | port->id = 0xff; | |
917d3bda XT |
1065 | } |
1066 | } | |
1067 | ||
1068 | static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 old_state, | |
1069 | u32 state) | |
1070 | { | |
1071 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1072 | struct asd_sas_port *_sas_port = NULL; | |
1073 | int phy_no; | |
1074 | ||
1075 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { | |
1076 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1077 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1078 | struct asd_sas_port *sas_port = sas_phy->port; | |
917d3bda XT |
1079 | bool do_port_check = !!(_sas_port != sas_port); |
1080 | ||
1081 | if (!sas_phy->phy->enabled) | |
1082 | continue; | |
1083 | ||
1084 | /* Report PHY state change to libsas */ | |
0b881a24 XT |
1085 | if (state & BIT(phy_no)) { |
1086 | if (do_port_check && sas_port && sas_port->port_dev) { | |
917d3bda XT |
1087 | struct domain_device *dev = sas_port->port_dev; |
1088 | ||
1089 | _sas_port = sas_port; | |
917d3bda XT |
1090 | |
1091 | if (DEV_IS_EXPANDER(dev->dev_type)) | |
1092 | sas_ha->notify_port_event(sas_phy, | |
1093 | PORTE_BROADCAST_RCVD); | |
1094 | } | |
1095 | } else if (old_state & (1 << phy_no)) | |
1096 | /* PHY down but was up before */ | |
1097 | hisi_sas_phy_down(hisi_hba, phy_no, 0); | |
1098 | ||
1099 | } | |
917d3bda XT |
1100 | } |
1101 | ||
06ec0fb9 XC |
1102 | static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba) |
1103 | { | |
917d3bda XT |
1104 | struct device *dev = hisi_hba->dev; |
1105 | struct Scsi_Host *shost = hisi_hba->shost; | |
1106 | u32 old_state, state; | |
1107 | unsigned long flags; | |
06ec0fb9 XC |
1108 | int rc; |
1109 | ||
1110 | if (!hisi_hba->hw->soft_reset) | |
1111 | return -1; | |
1112 | ||
917d3bda XT |
1113 | if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) |
1114 | return -1; | |
06ec0fb9 | 1115 | |
cf878054 | 1116 | dev_info(dev, "controller resetting...\n"); |
917d3bda | 1117 | old_state = hisi_hba->hw->get_phys_state(hisi_hba); |
06ec0fb9 | 1118 | |
917d3bda XT |
1119 | scsi_block_requests(shost); |
1120 | set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
1121 | rc = hisi_hba->hw->soft_reset(hisi_hba); | |
1122 | if (rc) { | |
1123 | dev_warn(dev, "controller reset failed (%d)\n", rc); | |
1124 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
cf878054 | 1125 | scsi_unblock_requests(shost); |
917d3bda XT |
1126 | goto out; |
1127 | } | |
1128 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1129 | hisi_sas_release_tasks(hisi_hba); | |
1130 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1131 | ||
917d3bda XT |
1132 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); |
1133 | ||
1134 | /* Init and wait for PHYs to come up and all libsas event finished. */ | |
1135 | hisi_hba->hw->phys_init(hisi_hba); | |
1136 | msleep(1000); | |
0b881a24 | 1137 | hisi_sas_refresh_port_id(hisi_hba); |
cf878054 | 1138 | scsi_unblock_requests(shost); |
917d3bda XT |
1139 | |
1140 | state = hisi_hba->hw->get_phys_state(hisi_hba); | |
1141 | hisi_sas_rescan_topology(hisi_hba, old_state, state); | |
cf878054 | 1142 | dev_info(dev, "controller reset complete\n"); |
06ec0fb9 XC |
1143 | |
1144 | out: | |
06ec0fb9 | 1145 | clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); |
917d3bda | 1146 | |
06ec0fb9 XC |
1147 | return rc; |
1148 | } | |
1149 | ||
0efff300 JG |
1150 | static int hisi_sas_abort_task(struct sas_task *task) |
1151 | { | |
1152 | struct scsi_lun lun; | |
1153 | struct hisi_sas_tmf_task tmf_task; | |
1154 | struct domain_device *device = task->dev; | |
1155 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1156 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
11b75249 | 1157 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1158 | int rc = TMF_RESP_FUNC_FAILED; |
1159 | unsigned long flags; | |
1160 | ||
1161 | if (!sas_dev) { | |
1162 | dev_warn(dev, "Device has been removed\n"); | |
1163 | return TMF_RESP_FUNC_FAILED; | |
1164 | } | |
1165 | ||
0efff300 | 1166 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { |
0efff300 JG |
1167 | rc = TMF_RESP_FUNC_COMPLETE; |
1168 | goto out; | |
1169 | } | |
1170 | ||
0efff300 JG |
1171 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
1172 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1173 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1174 | struct hisi_sas_slot *slot = task->lldd_task; | |
1175 | u32 tag = slot->idx; | |
c35279f2 | 1176 | int rc2; |
0efff300 JG |
1177 | |
1178 | int_to_scsilun(cmnd->device->lun, &lun); | |
1179 | tmf_task.tmf = TMF_ABORT_TASK; | |
1180 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1181 | ||
1182 | rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, | |
1183 | &tmf_task); | |
1184 | ||
c35279f2 JG |
1185 | rc2 = hisi_sas_internal_task_abort(hisi_hba, device, |
1186 | HISI_SAS_INT_ABT_CMD, tag); | |
1187 | /* | |
1188 | * If the TMF finds that the IO is not in the device and also | |
1189 | * the internal abort does not succeed, then it is safe to | |
1190 | * free the slot. | |
1191 | * Note: if the internal abort succeeds then the slot | |
1192 | * will have already been completed | |
1193 | */ | |
1194 | if (rc == TMF_RESP_FUNC_COMPLETE && rc2 != TMF_RESP_FUNC_SUCC) { | |
0efff300 | 1195 | if (task->lldd_task) { |
0efff300 | 1196 | spin_lock_irqsave(&hisi_hba->lock, flags); |
c35279f2 | 1197 | hisi_sas_do_release_task(hisi_hba, task, slot); |
0efff300 JG |
1198 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1199 | } | |
1200 | } | |
0efff300 JG |
1201 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1202 | task->task_proto & SAS_PROTOCOL_STP) { | |
1203 | if (task->dev->dev_type == SAS_SATA_DEV) { | |
dc8a49ca JG |
1204 | hisi_sas_internal_task_abort(hisi_hba, device, |
1205 | HISI_SAS_INT_ABT_DEV, 0); | |
d30ff263 | 1206 | hisi_sas_dereg_device(hisi_hba, device); |
7c594f04 | 1207 | rc = hisi_sas_softreset_ata_disk(device); |
0efff300 | 1208 | } |
eb045e04 | 1209 | } else if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SMP) { |
dc8a49ca JG |
1210 | /* SMP */ |
1211 | struct hisi_sas_slot *slot = task->lldd_task; | |
1212 | u32 tag = slot->idx; | |
0efff300 | 1213 | |
ccbfe5a0 XC |
1214 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1215 | HISI_SAS_INT_ABT_CMD, tag); | |
378c233b | 1216 | if (rc == TMF_RESP_FUNC_FAILED && task->lldd_task) { |
ccbfe5a0 XC |
1217 | spin_lock_irqsave(&hisi_hba->lock, flags); |
1218 | hisi_sas_do_release_task(hisi_hba, task, slot); | |
1219 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1220 | } | |
0efff300 JG |
1221 | } |
1222 | ||
1223 | out: | |
1224 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1225 | dev_notice(dev, "abort task: rc=%d\n", rc); | |
1226 | return rc; | |
1227 | } | |
1228 | ||
1229 | static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun) | |
1230 | { | |
1231 | struct hisi_sas_tmf_task tmf_task; | |
1232 | int rc = TMF_RESP_FUNC_FAILED; | |
1233 | ||
1234 | tmf_task.tmf = TMF_ABORT_TASK_SET; | |
1235 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1236 | ||
1237 | return rc; | |
1238 | } | |
1239 | ||
1240 | static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun) | |
1241 | { | |
1242 | int rc = TMF_RESP_FUNC_FAILED; | |
1243 | struct hisi_sas_tmf_task tmf_task; | |
1244 | ||
1245 | tmf_task.tmf = TMF_CLEAR_ACA; | |
1246 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1247 | ||
1248 | return rc; | |
1249 | } | |
1250 | ||
1251 | static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device) | |
1252 | { | |
1253 | struct sas_phy *phy = sas_get_local_phy(device); | |
1254 | int rc, reset_type = (device->dev_type == SAS_SATA_DEV || | |
1255 | (device->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; | |
1256 | rc = sas_phy_reset(phy, reset_type); | |
1257 | sas_put_local_phy(phy); | |
1258 | msleep(2000); | |
1259 | return rc; | |
1260 | } | |
1261 | ||
1262 | static int hisi_sas_I_T_nexus_reset(struct domain_device *device) | |
1263 | { | |
1264 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1265 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
1266 | unsigned long flags; | |
1267 | int rc = TMF_RESP_FUNC_FAILED; | |
1268 | ||
1269 | if (sas_dev->dev_status != HISI_SAS_DEV_EH) | |
1270 | return TMF_RESP_FUNC_FAILED; | |
1271 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
1272 | ||
d30ff263 XC |
1273 | hisi_sas_internal_task_abort(hisi_hba, device, |
1274 | HISI_SAS_INT_ABT_DEV, 0); | |
1275 | hisi_sas_dereg_device(hisi_hba, device); | |
1276 | ||
0efff300 JG |
1277 | rc = hisi_sas_debug_I_T_nexus_reset(device); |
1278 | ||
6131243a XC |
1279 | if (rc == TMF_RESP_FUNC_COMPLETE) { |
1280 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1281 | hisi_sas_release_task(hisi_hba, device); | |
1282 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1283 | } | |
1284 | return rc; | |
0efff300 JG |
1285 | } |
1286 | ||
1287 | static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun) | |
1288 | { | |
0efff300 JG |
1289 | struct hisi_sas_device *sas_dev = device->lldd_dev; |
1290 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1291 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1292 | unsigned long flags; |
1293 | int rc = TMF_RESP_FUNC_FAILED; | |
1294 | ||
0efff300 | 1295 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
055945df JG |
1296 | if (dev_is_sata(device)) { |
1297 | struct sas_phy *phy; | |
1298 | ||
1299 | /* Clear internal IO and then hardreset */ | |
1300 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1301 | HISI_SAS_INT_ABT_DEV, 0); | |
1302 | if (rc == TMF_RESP_FUNC_FAILED) | |
1303 | goto out; | |
d30ff263 | 1304 | hisi_sas_dereg_device(hisi_hba, device); |
0efff300 | 1305 | |
055945df JG |
1306 | phy = sas_get_local_phy(device); |
1307 | ||
1308 | rc = sas_phy_reset(phy, 1); | |
1309 | ||
1310 | if (rc == 0) { | |
1311 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1312 | hisi_sas_release_task(hisi_hba, device); | |
1313 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1314 | } | |
1315 | sas_put_local_phy(phy); | |
1316 | } else { | |
1317 | struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET }; | |
1318 | ||
1319 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1320 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1321 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1322 | hisi_sas_release_task(hisi_hba, device); | |
1323 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1324 | } | |
1325 | } | |
1326 | out: | |
14d3f397 | 1327 | if (rc != TMF_RESP_FUNC_COMPLETE) |
ad604832 | 1328 | dev_err(dev, "lu_reset: for device[%d]:rc= %d\n", |
14d3f397 | 1329 | sas_dev->device_id, rc); |
0efff300 JG |
1330 | return rc; |
1331 | } | |
1332 | ||
8b05ad6a JG |
1333 | static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha) |
1334 | { | |
1335 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
2b1658ec | 1336 | HISI_SAS_DECLARE_RST_WORK_ON_STACK(r); |
8b05ad6a | 1337 | |
2b1658ec XT |
1338 | queue_work(hisi_hba->wq, &r.work); |
1339 | wait_for_completion(r.completion); | |
1340 | if (r.done) | |
1341 | return TMF_RESP_FUNC_COMPLETE; | |
1342 | ||
1343 | return TMF_RESP_FUNC_FAILED; | |
8b05ad6a JG |
1344 | } |
1345 | ||
0efff300 JG |
1346 | static int hisi_sas_query_task(struct sas_task *task) |
1347 | { | |
1348 | struct scsi_lun lun; | |
1349 | struct hisi_sas_tmf_task tmf_task; | |
1350 | int rc = TMF_RESP_FUNC_FAILED; | |
1351 | ||
1352 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1353 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1354 | struct domain_device *device = task->dev; | |
1355 | struct hisi_sas_slot *slot = task->lldd_task; | |
1356 | u32 tag = slot->idx; | |
1357 | ||
1358 | int_to_scsilun(cmnd->device->lun, &lun); | |
1359 | tmf_task.tmf = TMF_QUERY_TASK; | |
1360 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1361 | ||
1362 | rc = hisi_sas_debug_issue_ssp_tmf(device, | |
1363 | lun.scsi_lun, | |
1364 | &tmf_task); | |
1365 | switch (rc) { | |
1366 | /* The task is still in Lun, release it then */ | |
1367 | case TMF_RESP_FUNC_SUCC: | |
1368 | /* The task is not in Lun or failed, reset the phy */ | |
1369 | case TMF_RESP_FUNC_FAILED: | |
1370 | case TMF_RESP_FUNC_COMPLETE: | |
1371 | break; | |
997ee43c XC |
1372 | default: |
1373 | rc = TMF_RESP_FUNC_FAILED; | |
1374 | break; | |
0efff300 JG |
1375 | } |
1376 | } | |
1377 | return rc; | |
1378 | } | |
1379 | ||
441c2740 | 1380 | static int |
ad604832 | 1381 | hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id, |
441c2740 JG |
1382 | struct sas_task *task, int abort_flag, |
1383 | int task_tag) | |
1384 | { | |
1385 | struct domain_device *device = task->dev; | |
1386 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1387 | struct device *dev = hisi_hba->dev; |
441c2740 JG |
1388 | struct hisi_sas_port *port; |
1389 | struct hisi_sas_slot *slot; | |
2e244f0f | 1390 | struct asd_sas_port *sas_port = device->port; |
441c2740 | 1391 | struct hisi_sas_cmd_hdr *cmd_hdr_base; |
b1a49412 | 1392 | struct hisi_sas_dq *dq = sas_dev->dq; |
441c2740 | 1393 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
b1a49412 | 1394 | unsigned long flags, flags_dq; |
441c2740 | 1395 | |
917d3bda | 1396 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
1397 | return -EINVAL; |
1398 | ||
441c2740 JG |
1399 | if (!device->port) |
1400 | return -1; | |
1401 | ||
2e244f0f | 1402 | port = to_hisi_sas_port(sas_port); |
441c2740 JG |
1403 | |
1404 | /* simply get a slot and send abort command */ | |
b1a49412 | 1405 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1406 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); |
b1a49412 XC |
1407 | if (rc) { |
1408 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
441c2740 | 1409 | goto err_out; |
b1a49412 XC |
1410 | } |
1411 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1412 | ||
1413 | spin_lock_irqsave(&dq->lock, flags_dq); | |
1414 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
441c2740 JG |
1415 | if (rc) |
1416 | goto err_out_tag; | |
1417 | ||
b1a49412 XC |
1418 | dlvry_queue = dq->id; |
1419 | dlvry_queue_slot = dq->wr_point; | |
1420 | ||
441c2740 JG |
1421 | slot = &hisi_hba->slot_info[slot_idx]; |
1422 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
1423 | ||
1424 | slot->idx = slot_idx; | |
1425 | slot->n_elem = n_elem; | |
1426 | slot->dlvry_queue = dlvry_queue; | |
1427 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
1428 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
1429 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
1430 | slot->task = task; | |
1431 | slot->port = port; | |
1432 | task->lldd_task = slot; | |
1433 | ||
031da09c XC |
1434 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
1435 | GFP_ATOMIC, &slot->buf_dma); | |
1436 | if (!slot->buf) { | |
1437 | rc = -ENOMEM; | |
1438 | goto err_out_tag; | |
1439 | } | |
1440 | ||
441c2740 | 1441 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
031da09c XC |
1442 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
1443 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
441c2740 JG |
1444 | |
1445 | rc = hisi_sas_task_prep_abort(hisi_hba, slot, device_id, | |
1446 | abort_flag, task_tag); | |
1447 | if (rc) | |
031da09c | 1448 | goto err_out_buf; |
441c2740 | 1449 | |
9feaf909 | 1450 | spin_lock_irqsave(&hisi_hba->lock, flags); |
405314df | 1451 | list_add_tail(&slot->entry, &sas_dev->list); |
9feaf909 | 1452 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
54c9dd2d | 1453 | spin_lock_irqsave(&task->task_state_lock, flags); |
441c2740 | 1454 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 1455 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
441c2740 | 1456 | |
b1a49412 | 1457 | dq->slot_prep = slot; |
441c2740 | 1458 | |
f696cc32 JG |
1459 | atomic64_inc(&sas_dev->running_req); |
1460 | ||
b1a49412 XC |
1461 | /* send abort command to the chip */ |
1462 | hisi_hba->hw->start_delivery(dq); | |
1463 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1464 | |
1465 | return 0; | |
1466 | ||
031da09c XC |
1467 | err_out_buf: |
1468 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
1469 | slot->buf_dma); | |
441c2740 | 1470 | err_out_tag: |
b1a49412 | 1471 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1472 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 XC |
1473 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1474 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1475 | err_out: |
1476 | dev_err(dev, "internal abort task prep: failed[%d]!\n", rc); | |
1477 | ||
1478 | return rc; | |
1479 | } | |
1480 | ||
1481 | /** | |
1482 | * hisi_sas_internal_task_abort -- execute an internal | |
1483 | * abort command for single IO command or a device | |
1484 | * @hisi_hba: host controller struct | |
1485 | * @device: domain device | |
1486 | * @abort_flag: mode of operation, device or single IO | |
1487 | * @tag: tag of IO to be aborted (only relevant to single | |
1488 | * IO mode) | |
1489 | */ | |
1490 | static int | |
1491 | hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, | |
1492 | struct domain_device *device, | |
1493 | int abort_flag, int tag) | |
1494 | { | |
1495 | struct sas_task *task; | |
1496 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1497 | struct device *dev = hisi_hba->dev; |
441c2740 | 1498 | int res; |
441c2740 JG |
1499 | |
1500 | if (!hisi_hba->hw->prep_abort) | |
1501 | return -EOPNOTSUPP; | |
1502 | ||
1503 | task = sas_alloc_slow_task(GFP_KERNEL); | |
1504 | if (!task) | |
1505 | return -ENOMEM; | |
1506 | ||
1507 | task->dev = device; | |
1508 | task->task_proto = device->tproto; | |
1509 | task->task_done = hisi_sas_task_done; | |
841b86f3 | 1510 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
0844a3ff | 1511 | task->slow_task->timer.expires = jiffies + msecs_to_jiffies(110); |
441c2740 JG |
1512 | add_timer(&task->slow_task->timer); |
1513 | ||
441c2740 JG |
1514 | res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id, |
1515 | task, abort_flag, tag); | |
441c2740 JG |
1516 | if (res) { |
1517 | del_timer(&task->slow_task->timer); | |
1518 | dev_err(dev, "internal task abort: executing internal task failed: %d\n", | |
1519 | res); | |
1520 | goto exit; | |
1521 | } | |
1522 | wait_for_completion(&task->slow_task->completion); | |
1523 | res = TMF_RESP_FUNC_FAILED; | |
1524 | ||
f64a6988 XC |
1525 | /* Internal abort timed out */ |
1526 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
1527 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
1528 | struct hisi_sas_slot *slot = task->lldd_task; | |
1529 | ||
1530 | if (slot) | |
1531 | slot->task = NULL; | |
081a1608 | 1532 | dev_err(dev, "internal task abort: timeout and not done.\n"); |
f692a677 | 1533 | goto exit; |
081a1608 XC |
1534 | } else |
1535 | dev_err(dev, "internal task abort: timeout.\n"); | |
f64a6988 XC |
1536 | } |
1537 | ||
441c2740 JG |
1538 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1539 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { | |
1540 | res = TMF_RESP_FUNC_COMPLETE; | |
1541 | goto exit; | |
1542 | } | |
1543 | ||
c35279f2 JG |
1544 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1545 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
1546 | res = TMF_RESP_FUNC_SUCC; | |
1547 | goto exit; | |
1548 | } | |
1549 | ||
441c2740 | 1550 | exit: |
297d7302 | 1551 | dev_dbg(dev, "internal task abort: task to dev %016llx task=%p " |
441c2740 JG |
1552 | "resp: 0x%x sts 0x%x\n", |
1553 | SAS_ADDR(device->sas_addr), | |
1554 | task, | |
1555 | task->task_status.resp, /* 0 is complete, -1 is undelivered */ | |
1556 | task->task_status.stat); | |
1557 | sas_free_task(task); | |
1558 | ||
1559 | return res; | |
1560 | } | |
1561 | ||
184a4635 JG |
1562 | static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy) |
1563 | { | |
1564 | hisi_sas_port_notify_formed(sas_phy); | |
1565 | } | |
1566 | ||
02615ec8 XT |
1567 | static int hisi_sas_write_gpio(struct sas_ha_struct *sha, u8 reg_type, |
1568 | u8 reg_index, u8 reg_count, u8 *write_data) | |
1569 | { | |
1570 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
1571 | ||
1572 | if (!hisi_hba->hw->write_gpio) | |
1573 | return -EOPNOTSUPP; | |
1574 | ||
1575 | return hisi_hba->hw->write_gpio(hisi_hba, reg_type, | |
1576 | reg_index, reg_count, write_data); | |
1577 | } | |
1578 | ||
184a4635 JG |
1579 | static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy) |
1580 | { | |
1581 | phy->phy_attached = 0; | |
1582 | phy->phy_type = 0; | |
1583 | phy->port = NULL; | |
1584 | } | |
1585 | ||
1586 | void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) | |
1587 | { | |
1588 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1589 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1590 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1591 | ||
1592 | if (rdy) { | |
1593 | /* Phy down but ready */ | |
1594 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
1595 | hisi_sas_port_notify_formed(sas_phy); | |
1596 | } else { | |
1597 | struct hisi_sas_port *port = phy->port; | |
1598 | ||
1599 | /* Phy down and not ready */ | |
1600 | sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL); | |
1601 | sas_phy_disconnected(sas_phy); | |
1602 | ||
1603 | if (port) { | |
1604 | if (phy->phy_type & PORT_TYPE_SAS) { | |
1605 | int port_id = port->id; | |
1606 | ||
1607 | if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba, | |
1608 | port_id)) | |
1609 | port->port_attached = 0; | |
1610 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
1611 | port->port_attached = 0; | |
1612 | } | |
1613 | hisi_sas_phy_disconnected(phy); | |
1614 | } | |
1615 | } | |
1616 | EXPORT_SYMBOL_GPL(hisi_sas_phy_down); | |
1617 | ||
571295f8 XT |
1618 | void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba) |
1619 | { | |
1620 | int i; | |
1621 | ||
1622 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1623 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
1624 | ||
1625 | tasklet_kill(&cq->tasklet); | |
1626 | } | |
1627 | } | |
1628 | EXPORT_SYMBOL_GPL(hisi_sas_kill_tasklets); | |
06ec0fb9 | 1629 | |
e21fe3a5 JG |
1630 | struct scsi_transport_template *hisi_sas_stt; |
1631 | EXPORT_SYMBOL_GPL(hisi_sas_stt); | |
e8899fad | 1632 | |
3a878c41 JY |
1633 | struct device_attribute *host_attrs[] = { |
1634 | &dev_attr_phy_event_threshold, | |
1635 | NULL, | |
1636 | }; | |
1637 | ||
e21fe3a5 | 1638 | static struct scsi_host_template _hisi_sas_sht = { |
7eb7869f JG |
1639 | .module = THIS_MODULE, |
1640 | .name = DRV_NAME, | |
1641 | .queuecommand = sas_queuecommand, | |
1642 | .target_alloc = sas_target_alloc, | |
31eec8a6 | 1643 | .slave_configure = hisi_sas_slave_configure, |
701f75ec JG |
1644 | .scan_finished = hisi_sas_scan_finished, |
1645 | .scan_start = hisi_sas_scan_start, | |
7eb7869f JG |
1646 | .change_queue_depth = sas_change_queue_depth, |
1647 | .bios_param = sas_bios_param, | |
1648 | .can_queue = 1, | |
1649 | .this_id = -1, | |
1650 | .sg_tablesize = SG_ALL, | |
1651 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, | |
1652 | .use_clustering = ENABLE_CLUSTERING, | |
1653 | .eh_device_reset_handler = sas_eh_device_reset_handler, | |
cc199e78 | 1654 | .eh_target_reset_handler = sas_eh_target_reset_handler, |
7eb7869f JG |
1655 | .target_destroy = sas_target_destroy, |
1656 | .ioctl = sas_ioctl, | |
3a878c41 | 1657 | .shost_attrs = host_attrs, |
7eb7869f | 1658 | }; |
e21fe3a5 JG |
1659 | struct scsi_host_template *hisi_sas_sht = &_hisi_sas_sht; |
1660 | EXPORT_SYMBOL_GPL(hisi_sas_sht); | |
7eb7869f | 1661 | |
e8899fad | 1662 | static struct sas_domain_function_template hisi_sas_transport_ops = { |
abda97c2 JG |
1663 | .lldd_dev_found = hisi_sas_dev_found, |
1664 | .lldd_dev_gone = hisi_sas_dev_gone, | |
42e7a693 | 1665 | .lldd_execute_task = hisi_sas_queue_command, |
e4189d53 | 1666 | .lldd_control_phy = hisi_sas_control_phy, |
0efff300 JG |
1667 | .lldd_abort_task = hisi_sas_abort_task, |
1668 | .lldd_abort_task_set = hisi_sas_abort_task_set, | |
1669 | .lldd_clear_aca = hisi_sas_clear_aca, | |
1670 | .lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset, | |
1671 | .lldd_lu_reset = hisi_sas_lu_reset, | |
1672 | .lldd_query_task = hisi_sas_query_task, | |
8b05ad6a | 1673 | .lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha, |
184a4635 | 1674 | .lldd_port_formed = hisi_sas_port_formed, |
02615ec8 | 1675 | .lldd_write_gpio = hisi_sas_write_gpio, |
e8899fad JG |
1676 | }; |
1677 | ||
06ec0fb9 XC |
1678 | void hisi_sas_init_mem(struct hisi_hba *hisi_hba) |
1679 | { | |
1680 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; | |
1681 | ||
1682 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1683 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
1684 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; | |
1685 | ||
1686 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1687 | memset(hisi_hba->cmd_hdr[i], 0, s); | |
1688 | dq->wr_point = 0; | |
1689 | ||
1690 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1691 | memset(hisi_hba->complete_hdr[i], 0, s); | |
1692 | cq->rd_point = 0; | |
1693 | } | |
1694 | ||
1695 | s = sizeof(struct hisi_sas_initial_fis) * hisi_hba->n_phy; | |
1696 | memset(hisi_hba->initial_fis, 0, s); | |
1697 | ||
1698 | s = max_command_entries * sizeof(struct hisi_sas_iost); | |
1699 | memset(hisi_hba->iost, 0, s); | |
1700 | ||
1701 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); | |
1702 | memset(hisi_hba->breakpoint, 0, s); | |
1703 | ||
3297ded1 | 1704 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
06ec0fb9 XC |
1705 | memset(hisi_hba->sata_breakpoint, 0, s); |
1706 | } | |
1707 | EXPORT_SYMBOL_GPL(hisi_sas_init_mem); | |
1708 | ||
e21fe3a5 | 1709 | int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost) |
6be6de18 | 1710 | { |
11b75249 | 1711 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1712 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
6be6de18 | 1713 | |
fa42d80d | 1714 | spin_lock_init(&hisi_hba->lock); |
976867e6 JG |
1715 | for (i = 0; i < hisi_hba->n_phy; i++) { |
1716 | hisi_sas_phy_init(hisi_hba, i); | |
1717 | hisi_hba->port[i].port_attached = 0; | |
1718 | hisi_hba->port[i].id = -1; | |
976867e6 JG |
1719 | } |
1720 | ||
af740dbe JG |
1721 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
1722 | hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED; | |
1723 | hisi_hba->devices[i].device_id = i; | |
1724 | hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL; | |
1725 | } | |
1726 | ||
6be6de18 | 1727 | for (i = 0; i < hisi_hba->queue_count; i++) { |
9101a079 | 1728 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
4fde02ad | 1729 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; |
9101a079 JG |
1730 | |
1731 | /* Completion queue structure */ | |
1732 | cq->id = i; | |
1733 | cq->hisi_hba = hisi_hba; | |
1734 | ||
4fde02ad JG |
1735 | /* Delivery queue structure */ |
1736 | dq->id = i; | |
1737 | dq->hisi_hba = hisi_hba; | |
1738 | ||
6be6de18 JG |
1739 | /* Delivery queue */ |
1740 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1741 | hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s, | |
1742 | &hisi_hba->cmd_hdr_dma[i], GFP_KERNEL); | |
1743 | if (!hisi_hba->cmd_hdr[i]) | |
1744 | goto err_out; | |
6be6de18 JG |
1745 | |
1746 | /* Completion queue */ | |
1747 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1748 | hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s, | |
1749 | &hisi_hba->complete_hdr_dma[i], GFP_KERNEL); | |
1750 | if (!hisi_hba->complete_hdr[i]) | |
1751 | goto err_out; | |
6be6de18 JG |
1752 | } |
1753 | ||
f557e32c XT |
1754 | s = sizeof(struct hisi_sas_slot_buf_table); |
1755 | hisi_hba->buffer_pool = dma_pool_create("dma_buffer", dev, s, 16, 0); | |
1756 | if (!hisi_hba->buffer_pool) | |
6be6de18 JG |
1757 | goto err_out; |
1758 | ||
1759 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
1760 | hisi_hba->itct = dma_alloc_coherent(dev, s, &hisi_hba->itct_dma, | |
1761 | GFP_KERNEL); | |
1762 | if (!hisi_hba->itct) | |
1763 | goto err_out; | |
1764 | ||
1765 | memset(hisi_hba->itct, 0, s); | |
1766 | ||
a8d547bd | 1767 | hisi_hba->slot_info = devm_kcalloc(dev, max_command_entries, |
6be6de18 JG |
1768 | sizeof(struct hisi_sas_slot), |
1769 | GFP_KERNEL); | |
1770 | if (!hisi_hba->slot_info) | |
1771 | goto err_out; | |
1772 | ||
a8d547bd | 1773 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
6be6de18 JG |
1774 | hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma, |
1775 | GFP_KERNEL); | |
1776 | if (!hisi_hba->iost) | |
1777 | goto err_out; | |
1778 | ||
a8d547bd | 1779 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
6be6de18 JG |
1780 | hisi_hba->breakpoint = dma_alloc_coherent(dev, s, |
1781 | &hisi_hba->breakpoint_dma, GFP_KERNEL); | |
1782 | if (!hisi_hba->breakpoint) | |
1783 | goto err_out; | |
1784 | ||
a8d547bd | 1785 | hisi_hba->slot_index_count = max_command_entries; |
433f5696 | 1786 | s = hisi_hba->slot_index_count / BITS_PER_BYTE; |
257efd1f JG |
1787 | hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL); |
1788 | if (!hisi_hba->slot_index_tags) | |
1789 | goto err_out; | |
1790 | ||
6be6de18 JG |
1791 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; |
1792 | hisi_hba->initial_fis = dma_alloc_coherent(dev, s, | |
1793 | &hisi_hba->initial_fis_dma, GFP_KERNEL); | |
1794 | if (!hisi_hba->initial_fis) | |
1795 | goto err_out; | |
6be6de18 | 1796 | |
3297ded1 | 1797 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
6be6de18 JG |
1798 | hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s, |
1799 | &hisi_hba->sata_breakpoint_dma, GFP_KERNEL); | |
1800 | if (!hisi_hba->sata_breakpoint) | |
1801 | goto err_out; | |
06ec0fb9 | 1802 | hisi_sas_init_mem(hisi_hba); |
6be6de18 | 1803 | |
257efd1f JG |
1804 | hisi_sas_slot_index_init(hisi_hba); |
1805 | ||
7e9080e1 JG |
1806 | hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); |
1807 | if (!hisi_hba->wq) { | |
1808 | dev_err(dev, "sas_alloc: failed to create workqueue\n"); | |
1809 | goto err_out; | |
1810 | } | |
1811 | ||
6be6de18 JG |
1812 | return 0; |
1813 | err_out: | |
1814 | return -ENOMEM; | |
1815 | } | |
e21fe3a5 | 1816 | EXPORT_SYMBOL_GPL(hisi_sas_alloc); |
6be6de18 | 1817 | |
e21fe3a5 | 1818 | void hisi_sas_free(struct hisi_hba *hisi_hba) |
89d53322 | 1819 | { |
11b75249 | 1820 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1821 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
89d53322 JG |
1822 | |
1823 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1824 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1825 | if (hisi_hba->cmd_hdr[i]) | |
1826 | dma_free_coherent(dev, s, | |
1827 | hisi_hba->cmd_hdr[i], | |
1828 | hisi_hba->cmd_hdr_dma[i]); | |
1829 | ||
1830 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1831 | if (hisi_hba->complete_hdr[i]) | |
1832 | dma_free_coherent(dev, s, | |
1833 | hisi_hba->complete_hdr[i], | |
1834 | hisi_hba->complete_hdr_dma[i]); | |
1835 | } | |
1836 | ||
f557e32c | 1837 | dma_pool_destroy(hisi_hba->buffer_pool); |
89d53322 JG |
1838 | |
1839 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
1840 | if (hisi_hba->itct) | |
1841 | dma_free_coherent(dev, s, | |
1842 | hisi_hba->itct, hisi_hba->itct_dma); | |
1843 | ||
a8d547bd | 1844 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
89d53322 JG |
1845 | if (hisi_hba->iost) |
1846 | dma_free_coherent(dev, s, | |
1847 | hisi_hba->iost, hisi_hba->iost_dma); | |
1848 | ||
a8d547bd | 1849 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
89d53322 JG |
1850 | if (hisi_hba->breakpoint) |
1851 | dma_free_coherent(dev, s, | |
1852 | hisi_hba->breakpoint, | |
1853 | hisi_hba->breakpoint_dma); | |
1854 | ||
1855 | ||
1856 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; | |
1857 | if (hisi_hba->initial_fis) | |
1858 | dma_free_coherent(dev, s, | |
1859 | hisi_hba->initial_fis, | |
1860 | hisi_hba->initial_fis_dma); | |
1861 | ||
3297ded1 | 1862 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
89d53322 JG |
1863 | if (hisi_hba->sata_breakpoint) |
1864 | dma_free_coherent(dev, s, | |
1865 | hisi_hba->sata_breakpoint, | |
1866 | hisi_hba->sata_breakpoint_dma); | |
1867 | ||
7e9080e1 JG |
1868 | if (hisi_hba->wq) |
1869 | destroy_workqueue(hisi_hba->wq); | |
89d53322 | 1870 | } |
e21fe3a5 | 1871 | EXPORT_SYMBOL_GPL(hisi_sas_free); |
6be6de18 | 1872 | |
b4241f0f | 1873 | void hisi_sas_rst_work_handler(struct work_struct *work) |
06ec0fb9 XC |
1874 | { |
1875 | struct hisi_hba *hisi_hba = | |
1876 | container_of(work, struct hisi_hba, rst_work); | |
1877 | ||
1878 | hisi_sas_controller_reset(hisi_hba); | |
1879 | } | |
b4241f0f | 1880 | EXPORT_SYMBOL_GPL(hisi_sas_rst_work_handler); |
06ec0fb9 | 1881 | |
2b1658ec XT |
1882 | void hisi_sas_sync_rst_work_handler(struct work_struct *work) |
1883 | { | |
1884 | struct hisi_sas_rst *rst = | |
1885 | container_of(work, struct hisi_sas_rst, work); | |
1886 | ||
1887 | if (!hisi_sas_controller_reset(rst->hisi_hba)) | |
1888 | rst->done = true; | |
1889 | complete(rst->completion); | |
1890 | } | |
1891 | EXPORT_SYMBOL_GPL(hisi_sas_sync_rst_work_handler); | |
1892 | ||
0fa24c19 | 1893 | int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba) |
7eb7869f | 1894 | { |
0fa24c19 JG |
1895 | struct device *dev = hisi_hba->dev; |
1896 | struct platform_device *pdev = hisi_hba->platform_dev; | |
1897 | struct device_node *np = pdev ? pdev->dev.of_node : NULL; | |
3bc45af8 | 1898 | struct clk *refclk; |
7eb7869f | 1899 | |
4d558c77 | 1900 | if (device_property_read_u8_array(dev, "sas-addr", hisi_hba->sas_addr, |
0fa24c19 JG |
1901 | SAS_ADDR_SIZE)) { |
1902 | dev_err(dev, "could not get property sas-addr\n"); | |
1903 | return -ENOENT; | |
1904 | } | |
e26b2f40 | 1905 | |
4d558c77 | 1906 | if (np) { |
0fa24c19 JG |
1907 | /* |
1908 | * These properties are only required for platform device-based | |
1909 | * controller with DT firmware. | |
1910 | */ | |
4d558c77 JG |
1911 | hisi_hba->ctrl = syscon_regmap_lookup_by_phandle(np, |
1912 | "hisilicon,sas-syscon"); | |
0fa24c19 JG |
1913 | if (IS_ERR(hisi_hba->ctrl)) { |
1914 | dev_err(dev, "could not get syscon\n"); | |
1915 | return -ENOENT; | |
1916 | } | |
e26b2f40 | 1917 | |
4d558c77 | 1918 | if (device_property_read_u32(dev, "ctrl-reset-reg", |
0fa24c19 JG |
1919 | &hisi_hba->ctrl_reset_reg)) { |
1920 | dev_err(dev, | |
1921 | "could not get property ctrl-reset-reg\n"); | |
1922 | return -ENOENT; | |
1923 | } | |
e26b2f40 | 1924 | |
4d558c77 | 1925 | if (device_property_read_u32(dev, "ctrl-reset-sts-reg", |
0fa24c19 JG |
1926 | &hisi_hba->ctrl_reset_sts_reg)) { |
1927 | dev_err(dev, | |
1928 | "could not get property ctrl-reset-sts-reg\n"); | |
1929 | return -ENOENT; | |
1930 | } | |
e26b2f40 | 1931 | |
4d558c77 | 1932 | if (device_property_read_u32(dev, "ctrl-clock-ena-reg", |
0fa24c19 JG |
1933 | &hisi_hba->ctrl_clock_ena_reg)) { |
1934 | dev_err(dev, | |
1935 | "could not get property ctrl-clock-ena-reg\n"); | |
1936 | return -ENOENT; | |
1937 | } | |
4d558c77 JG |
1938 | } |
1939 | ||
0fa24c19 | 1940 | refclk = devm_clk_get(dev, NULL); |
3bc45af8 | 1941 | if (IS_ERR(refclk)) |
87e287c1 | 1942 | dev_dbg(dev, "no ref clk property\n"); |
3bc45af8 JG |
1943 | else |
1944 | hisi_hba->refclk_frequency_mhz = clk_get_rate(refclk) / 1000000; | |
1945 | ||
0fa24c19 JG |
1946 | if (device_property_read_u32(dev, "phy-count", &hisi_hba->n_phy)) { |
1947 | dev_err(dev, "could not get property phy-count\n"); | |
1948 | return -ENOENT; | |
1949 | } | |
e26b2f40 | 1950 | |
4d558c77 | 1951 | if (device_property_read_u32(dev, "queue-count", |
0fa24c19 JG |
1952 | &hisi_hba->queue_count)) { |
1953 | dev_err(dev, "could not get property queue-count\n"); | |
1954 | return -ENOENT; | |
1955 | } | |
1956 | ||
1957 | return 0; | |
1958 | } | |
1959 | EXPORT_SYMBOL_GPL(hisi_sas_get_fw_info); | |
1960 | ||
1961 | static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev, | |
1962 | const struct hisi_sas_hw *hw) | |
1963 | { | |
1964 | struct resource *res; | |
1965 | struct Scsi_Host *shost; | |
1966 | struct hisi_hba *hisi_hba; | |
1967 | struct device *dev = &pdev->dev; | |
1968 | ||
e21fe3a5 | 1969 | shost = scsi_host_alloc(hisi_sas_sht, sizeof(*hisi_hba)); |
0fa24c19 JG |
1970 | if (!shost) { |
1971 | dev_err(dev, "scsi host alloc failed\n"); | |
1972 | return NULL; | |
1973 | } | |
1974 | hisi_hba = shost_priv(shost); | |
1975 | ||
1976 | INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler); | |
1977 | hisi_hba->hw = hw; | |
1978 | hisi_hba->dev = dev; | |
1979 | hisi_hba->platform_dev = pdev; | |
1980 | hisi_hba->shost = shost; | |
1981 | SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; | |
1982 | ||
77570eed | 1983 | timer_setup(&hisi_hba->timer, NULL, 0); |
0fa24c19 JG |
1984 | |
1985 | if (hisi_sas_get_fw_info(hisi_hba) < 0) | |
e26b2f40 JG |
1986 | goto err_out; |
1987 | ||
a6f2c7ff JG |
1988 | if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) && |
1989 | dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) { | |
1990 | dev_err(dev, "No usable DMA addressing method\n"); | |
1991 | goto err_out; | |
1992 | } | |
1993 | ||
e26b2f40 JG |
1994 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
1995 | hisi_hba->regs = devm_ioremap_resource(dev, res); | |
1996 | if (IS_ERR(hisi_hba->regs)) | |
1997 | goto err_out; | |
1998 | ||
02615ec8 XT |
1999 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
2000 | if (res) { | |
2001 | hisi_hba->sgpio_regs = devm_ioremap_resource(dev, res); | |
2002 | if (IS_ERR(hisi_hba->sgpio_regs)) | |
2003 | goto err_out; | |
2004 | } | |
2005 | ||
89d53322 JG |
2006 | if (hisi_sas_alloc(hisi_hba, shost)) { |
2007 | hisi_sas_free(hisi_hba); | |
6be6de18 | 2008 | goto err_out; |
89d53322 | 2009 | } |
6be6de18 | 2010 | |
7eb7869f JG |
2011 | return shost; |
2012 | err_out: | |
76aae5f6 | 2013 | scsi_host_put(shost); |
7eb7869f JG |
2014 | dev_err(dev, "shost alloc failed\n"); |
2015 | return NULL; | |
2016 | } | |
2017 | ||
e21fe3a5 | 2018 | void hisi_sas_init_add(struct hisi_hba *hisi_hba) |
5d74242e JG |
2019 | { |
2020 | int i; | |
2021 | ||
2022 | for (i = 0; i < hisi_hba->n_phy; i++) | |
2023 | memcpy(&hisi_hba->phy[i].dev_sas_addr, | |
2024 | hisi_hba->sas_addr, | |
2025 | SAS_ADDR_SIZE); | |
2026 | } | |
e21fe3a5 | 2027 | EXPORT_SYMBOL_GPL(hisi_sas_init_add); |
5d74242e | 2028 | |
7eb7869f JG |
2029 | int hisi_sas_probe(struct platform_device *pdev, |
2030 | const struct hisi_sas_hw *hw) | |
2031 | { | |
2032 | struct Scsi_Host *shost; | |
2033 | struct hisi_hba *hisi_hba; | |
2034 | struct device *dev = &pdev->dev; | |
2035 | struct asd_sas_phy **arr_phy; | |
2036 | struct asd_sas_port **arr_port; | |
2037 | struct sas_ha_struct *sha; | |
2038 | int rc, phy_nr, port_nr, i; | |
2039 | ||
2040 | shost = hisi_sas_shost_alloc(pdev, hw); | |
d37a0082 XT |
2041 | if (!shost) |
2042 | return -ENOMEM; | |
7eb7869f JG |
2043 | |
2044 | sha = SHOST_TO_SAS_HA(shost); | |
2045 | hisi_hba = shost_priv(shost); | |
2046 | platform_set_drvdata(pdev, sha); | |
50cb916f | 2047 | |
7eb7869f JG |
2048 | phy_nr = port_nr = hisi_hba->n_phy; |
2049 | ||
2050 | arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); | |
2051 | arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); | |
d37a0082 XT |
2052 | if (!arr_phy || !arr_port) { |
2053 | rc = -ENOMEM; | |
2054 | goto err_out_ha; | |
2055 | } | |
7eb7869f JG |
2056 | |
2057 | sha->sas_phy = arr_phy; | |
2058 | sha->sas_port = arr_port; | |
7eb7869f JG |
2059 | sha->lldd_ha = hisi_hba; |
2060 | ||
2061 | shost->transportt = hisi_sas_stt; | |
2062 | shost->max_id = HISI_SAS_MAX_DEVICES; | |
2063 | shost->max_lun = ~0; | |
2064 | shost->max_channel = 1; | |
2065 | shost->max_cmd_len = 16; | |
2066 | shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT); | |
a8d547bd JG |
2067 | shost->can_queue = hisi_hba->hw->max_command_entries; |
2068 | shost->cmd_per_lun = hisi_hba->hw->max_command_entries; | |
7eb7869f JG |
2069 | |
2070 | sha->sas_ha_name = DRV_NAME; | |
11b75249 | 2071 | sha->dev = hisi_hba->dev; |
7eb7869f JG |
2072 | sha->lldd_module = THIS_MODULE; |
2073 | sha->sas_addr = &hisi_hba->sas_addr[0]; | |
2074 | sha->num_phys = hisi_hba->n_phy; | |
2075 | sha->core.shost = hisi_hba->shost; | |
2076 | ||
2077 | for (i = 0; i < hisi_hba->n_phy; i++) { | |
2078 | sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; | |
2079 | sha->sas_port[i] = &hisi_hba->port[i].sas_port; | |
2080 | } | |
2081 | ||
5d74242e JG |
2082 | hisi_sas_init_add(hisi_hba); |
2083 | ||
7eb7869f JG |
2084 | rc = scsi_add_host(shost, &pdev->dev); |
2085 | if (rc) | |
2086 | goto err_out_ha; | |
2087 | ||
2088 | rc = sas_register_ha(sha); | |
2089 | if (rc) | |
2090 | goto err_out_register_ha; | |
2091 | ||
0757f041 XC |
2092 | rc = hisi_hba->hw->hw_init(hisi_hba); |
2093 | if (rc) | |
2094 | goto err_out_register_ha; | |
2095 | ||
7eb7869f JG |
2096 | scsi_scan_host(shost); |
2097 | ||
2098 | return 0; | |
2099 | ||
2100 | err_out_register_ha: | |
2101 | scsi_remove_host(shost); | |
2102 | err_out_ha: | |
d37a0082 | 2103 | hisi_sas_free(hisi_hba); |
76aae5f6 | 2104 | scsi_host_put(shost); |
7eb7869f JG |
2105 | return rc; |
2106 | } | |
2107 | EXPORT_SYMBOL_GPL(hisi_sas_probe); | |
2108 | ||
89d53322 JG |
2109 | int hisi_sas_remove(struct platform_device *pdev) |
2110 | { | |
2111 | struct sas_ha_struct *sha = platform_get_drvdata(pdev); | |
2112 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
d37a0082 | 2113 | struct Scsi_Host *shost = sha->core.shost; |
89d53322 | 2114 | |
89d53322 JG |
2115 | sas_unregister_ha(sha); |
2116 | sas_remove_host(sha->core.shost); | |
2117 | ||
2118 | hisi_sas_free(hisi_hba); | |
76aae5f6 | 2119 | scsi_host_put(shost); |
89d53322 JG |
2120 | return 0; |
2121 | } | |
2122 | EXPORT_SYMBOL_GPL(hisi_sas_remove); | |
2123 | ||
e8899fad JG |
2124 | static __init int hisi_sas_init(void) |
2125 | { | |
e8899fad JG |
2126 | hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); |
2127 | if (!hisi_sas_stt) | |
2128 | return -ENOMEM; | |
2129 | ||
2130 | return 0; | |
2131 | } | |
2132 | ||
2133 | static __exit void hisi_sas_exit(void) | |
2134 | { | |
2135 | sas_release_transport(hisi_sas_stt); | |
2136 | } | |
2137 | ||
2138 | module_init(hisi_sas_init); | |
2139 | module_exit(hisi_sas_exit); | |
2140 | ||
e8899fad JG |
2141 | MODULE_LICENSE("GPL"); |
2142 | MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); | |
2143 | MODULE_DESCRIPTION("HISILICON SAS controller driver"); | |
2144 | MODULE_ALIAS("platform:" DRV_NAME); |