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Commit | Line | Data |
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e8899fad JG |
1 | /* |
2 | * Copyright (c) 2015 Linaro Ltd. | |
3 | * Copyright (c) 2015 Hisilicon Limited. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | */ | |
11 | ||
12 | #include "hisi_sas.h" | |
13 | #define DRV_NAME "hisi_sas" | |
14 | ||
42e7a693 JG |
15 | #define DEV_IS_GONE(dev) \ |
16 | ((!dev) || (dev->dev_type == SAS_PHY_UNUSED)) | |
17 | ||
cac9b2a2 JG |
18 | static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device, |
19 | u8 *lun, struct hisi_sas_tmf_task *tmf); | |
441c2740 JG |
20 | static int |
21 | hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, | |
22 | struct domain_device *device, | |
23 | int abort_flag, int tag); | |
7c594f04 | 24 | static int hisi_sas_softreset_ata_disk(struct domain_device *device); |
057c3d1f XT |
25 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
26 | void *funcdata); | |
cac9b2a2 | 27 | |
468f4b8d | 28 | u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction) |
6c7bb8a1 | 29 | { |
468f4b8d | 30 | switch (fis->command) { |
6c7bb8a1 XC |
31 | case ATA_CMD_FPDMA_WRITE: |
32 | case ATA_CMD_FPDMA_READ: | |
33 | case ATA_CMD_FPDMA_RECV: | |
34 | case ATA_CMD_FPDMA_SEND: | |
35 | case ATA_CMD_NCQ_NON_DATA: | |
edafeef4 | 36 | return HISI_SAS_SATA_PROTOCOL_FPDMA; |
6c7bb8a1 XC |
37 | |
38 | case ATA_CMD_DOWNLOAD_MICRO: | |
39 | case ATA_CMD_ID_ATA: | |
40 | case ATA_CMD_PMP_READ: | |
41 | case ATA_CMD_READ_LOG_EXT: | |
42 | case ATA_CMD_PIO_READ: | |
43 | case ATA_CMD_PIO_READ_EXT: | |
44 | case ATA_CMD_PMP_WRITE: | |
45 | case ATA_CMD_WRITE_LOG_EXT: | |
46 | case ATA_CMD_PIO_WRITE: | |
47 | case ATA_CMD_PIO_WRITE_EXT: | |
edafeef4 | 48 | return HISI_SAS_SATA_PROTOCOL_PIO; |
6c7bb8a1 XC |
49 | |
50 | case ATA_CMD_DSM: | |
51 | case ATA_CMD_DOWNLOAD_MICRO_DMA: | |
52 | case ATA_CMD_PMP_READ_DMA: | |
53 | case ATA_CMD_PMP_WRITE_DMA: | |
54 | case ATA_CMD_READ: | |
55 | case ATA_CMD_READ_EXT: | |
56 | case ATA_CMD_READ_LOG_DMA_EXT: | |
57 | case ATA_CMD_READ_STREAM_DMA_EXT: | |
58 | case ATA_CMD_TRUSTED_RCV_DMA: | |
59 | case ATA_CMD_TRUSTED_SND_DMA: | |
60 | case ATA_CMD_WRITE: | |
61 | case ATA_CMD_WRITE_EXT: | |
62 | case ATA_CMD_WRITE_FUA_EXT: | |
63 | case ATA_CMD_WRITE_QUEUED: | |
64 | case ATA_CMD_WRITE_LOG_DMA_EXT: | |
65 | case ATA_CMD_WRITE_STREAM_DMA_EXT: | |
c3fe8a2b | 66 | case ATA_CMD_ZAC_MGMT_IN: |
edafeef4 | 67 | return HISI_SAS_SATA_PROTOCOL_DMA; |
6c7bb8a1 XC |
68 | |
69 | case ATA_CMD_CHK_POWER: | |
70 | case ATA_CMD_DEV_RESET: | |
71 | case ATA_CMD_EDD: | |
72 | case ATA_CMD_FLUSH: | |
73 | case ATA_CMD_FLUSH_EXT: | |
74 | case ATA_CMD_VERIFY: | |
75 | case ATA_CMD_VERIFY_EXT: | |
76 | case ATA_CMD_SET_FEATURES: | |
77 | case ATA_CMD_STANDBY: | |
78 | case ATA_CMD_STANDBYNOW1: | |
c3fe8a2b | 79 | case ATA_CMD_ZAC_MGMT_OUT: |
edafeef4 | 80 | return HISI_SAS_SATA_PROTOCOL_NONDATA; |
468f4b8d | 81 | |
3ff0f0b6 XT |
82 | case ATA_CMD_SET_MAX: |
83 | switch (fis->features) { | |
84 | case ATA_SET_MAX_PASSWD: | |
85 | case ATA_SET_MAX_LOCK: | |
86 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
468f4b8d | 87 | |
3ff0f0b6 XT |
88 | case ATA_SET_MAX_PASSWD_DMA: |
89 | case ATA_SET_MAX_UNLOCK_DMA: | |
90 | return HISI_SAS_SATA_PROTOCOL_DMA; | |
91 | ||
92 | default: | |
93 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
468f4b8d | 94 | } |
3ff0f0b6 XT |
95 | |
96 | default: | |
97 | { | |
6c7bb8a1 XC |
98 | if (direction == DMA_NONE) |
99 | return HISI_SAS_SATA_PROTOCOL_NONDATA; | |
100 | return HISI_SAS_SATA_PROTOCOL_PIO; | |
101 | } | |
468f4b8d | 102 | } |
6c7bb8a1 XC |
103 | } |
104 | EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol); | |
105 | ||
75904077 XC |
106 | void hisi_sas_sata_done(struct sas_task *task, |
107 | struct hisi_sas_slot *slot) | |
108 | { | |
109 | struct task_status_struct *ts = &task->task_status; | |
110 | struct ata_task_resp *resp = (struct ata_task_resp *)ts->buf; | |
f557e32c XT |
111 | struct hisi_sas_status_buffer *status_buf = |
112 | hisi_sas_status_buf_addr_mem(slot); | |
113 | u8 *iu = &status_buf->iu[0]; | |
114 | struct dev_to_host_fis *d2h = (struct dev_to_host_fis *)iu; | |
75904077 XC |
115 | |
116 | resp->frame_len = sizeof(struct dev_to_host_fis); | |
117 | memcpy(&resp->ending_fis[0], d2h, sizeof(struct dev_to_host_fis)); | |
118 | ||
119 | ts->buf_valid_size = sizeof(*resp); | |
120 | } | |
121 | EXPORT_SYMBOL_GPL(hisi_sas_sata_done); | |
122 | ||
318913c6 XC |
123 | int hisi_sas_get_ncq_tag(struct sas_task *task, u32 *tag) |
124 | { | |
125 | struct ata_queued_cmd *qc = task->uldd_task; | |
126 | ||
127 | if (qc) { | |
128 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || | |
129 | qc->tf.command == ATA_CMD_FPDMA_READ) { | |
130 | *tag = qc->tag; | |
131 | return 1; | |
132 | } | |
133 | } | |
134 | return 0; | |
135 | } | |
136 | EXPORT_SYMBOL_GPL(hisi_sas_get_ncq_tag); | |
137 | ||
c2c1d9de XC |
138 | /* |
139 | * This function assumes linkrate mask fits in 8 bits, which it | |
140 | * does for all HW versions supported. | |
141 | */ | |
142 | u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max) | |
143 | { | |
144 | u16 rate = 0; | |
145 | int i; | |
146 | ||
147 | max -= SAS_LINK_RATE_1_5_GBPS; | |
148 | for (i = 0; i <= max; i++) | |
149 | rate |= 1 << (i * 2); | |
150 | return rate; | |
151 | } | |
152 | EXPORT_SYMBOL_GPL(hisi_sas_get_prog_phy_linkrate_mask); | |
153 | ||
42e7a693 JG |
154 | static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device) |
155 | { | |
156 | return device->port->ha->lldd_ha; | |
157 | } | |
158 | ||
2e244f0f JG |
159 | struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port) |
160 | { | |
161 | return container_of(sas_port, struct hisi_sas_port, sas_port); | |
162 | } | |
163 | EXPORT_SYMBOL_GPL(to_hisi_sas_port); | |
164 | ||
a25d0d3d XC |
165 | void hisi_sas_stop_phys(struct hisi_hba *hisi_hba) |
166 | { | |
167 | int phy_no; | |
168 | ||
169 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) | |
170 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
171 | } | |
172 | EXPORT_SYMBOL_GPL(hisi_sas_stop_phys); | |
173 | ||
257efd1f JG |
174 | static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) |
175 | { | |
176 | void *bitmap = hisi_hba->slot_index_tags; | |
177 | ||
178 | clear_bit(slot_idx, bitmap); | |
179 | } | |
180 | ||
42e7a693 JG |
181 | static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx) |
182 | { | |
183 | hisi_sas_slot_index_clear(hisi_hba, slot_idx); | |
184 | } | |
185 | ||
186 | static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx) | |
187 | { | |
188 | void *bitmap = hisi_hba->slot_index_tags; | |
189 | ||
190 | set_bit(slot_idx, bitmap); | |
191 | } | |
192 | ||
193 | static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, int *slot_idx) | |
194 | { | |
195 | unsigned int index; | |
196 | void *bitmap = hisi_hba->slot_index_tags; | |
197 | ||
198 | index = find_first_zero_bit(bitmap, hisi_hba->slot_index_count); | |
199 | if (index >= hisi_hba->slot_index_count) | |
200 | return -SAS_QUEUE_FULL; | |
201 | hisi_sas_slot_index_set(hisi_hba, index); | |
202 | *slot_idx = index; | |
203 | return 0; | |
204 | } | |
205 | ||
257efd1f JG |
206 | static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) |
207 | { | |
208 | int i; | |
209 | ||
210 | for (i = 0; i < hisi_hba->slot_index_count; ++i) | |
211 | hisi_sas_slot_index_clear(hisi_hba, i); | |
212 | } | |
27a3f229 JG |
213 | |
214 | void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, | |
215 | struct hisi_sas_slot *slot) | |
216 | { | |
27a3f229 | 217 | |
d3c4dd4e | 218 | if (task) { |
11b75249 | 219 | struct device *dev = hisi_hba->dev; |
27a3f229 | 220 | |
6ba0fbc3 XT |
221 | if (!task->lldd_task) |
222 | return; | |
223 | ||
224 | task->lldd_task = NULL; | |
225 | ||
d3c4dd4e JG |
226 | if (!sas_protocol_ata(task->task_proto)) |
227 | if (slot->n_elem) | |
dc1e4730 XC |
228 | dma_unmap_sg(dev, task->scatter, |
229 | task->num_scatter, | |
d3c4dd4e | 230 | task->data_dir); |
d3c4dd4e | 231 | } |
27a3f229 | 232 | |
f557e32c XT |
233 | if (slot->buf) |
234 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, slot->buf_dma); | |
27a3f229 | 235 | |
27a3f229 | 236 | list_del_init(&slot->entry); |
6ba0fbc3 | 237 | slot->buf = NULL; |
27a3f229 JG |
238 | slot->task = NULL; |
239 | slot->port = NULL; | |
240 | hisi_sas_slot_index_free(hisi_hba, slot->idx); | |
d3c4dd4e | 241 | |
59ba49f9 | 242 | /* slot memory is fully zeroed when it is reused */ |
27a3f229 JG |
243 | } |
244 | EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free); | |
245 | ||
66ee999b JG |
246 | static int hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba, |
247 | struct hisi_sas_slot *slot) | |
248 | { | |
249 | return hisi_hba->hw->prep_smp(hisi_hba, slot); | |
250 | } | |
251 | ||
42e7a693 JG |
252 | static int hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba, |
253 | struct hisi_sas_slot *slot, int is_tmf, | |
254 | struct hisi_sas_tmf_task *tmf) | |
255 | { | |
256 | return hisi_hba->hw->prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
257 | } | |
258 | ||
6f2ff1a1 JG |
259 | static int hisi_sas_task_prep_ata(struct hisi_hba *hisi_hba, |
260 | struct hisi_sas_slot *slot) | |
261 | { | |
262 | return hisi_hba->hw->prep_stp(hisi_hba, slot); | |
263 | } | |
264 | ||
441c2740 JG |
265 | static int hisi_sas_task_prep_abort(struct hisi_hba *hisi_hba, |
266 | struct hisi_sas_slot *slot, | |
267 | int device_id, int abort_flag, int tag_to_abort) | |
268 | { | |
269 | return hisi_hba->hw->prep_abort(hisi_hba, slot, | |
270 | device_id, abort_flag, tag_to_abort); | |
271 | } | |
272 | ||
cac9b2a2 JG |
273 | /* |
274 | * This function will issue an abort TMF regardless of whether the | |
275 | * task is in the sdev or not. Then it will do the task complete | |
276 | * cleanup and callbacks. | |
277 | */ | |
278 | static void hisi_sas_slot_abort(struct work_struct *work) | |
279 | { | |
280 | struct hisi_sas_slot *abort_slot = | |
281 | container_of(work, struct hisi_sas_slot, abort_slot); | |
282 | struct sas_task *task = abort_slot->task; | |
283 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
284 | struct scsi_cmnd *cmnd = task->uldd_task; | |
285 | struct hisi_sas_tmf_task tmf_task; | |
cac9b2a2 | 286 | struct scsi_lun lun; |
11b75249 | 287 | struct device *dev = hisi_hba->dev; |
cac9b2a2 | 288 | int tag = abort_slot->idx; |
da7b66e7 | 289 | unsigned long flags; |
cac9b2a2 JG |
290 | |
291 | if (!(task->task_proto & SAS_PROTOCOL_SSP)) { | |
292 | dev_err(dev, "cannot abort slot for non-ssp task\n"); | |
293 | goto out; | |
294 | } | |
295 | ||
296 | int_to_scsilun(cmnd->device->lun, &lun); | |
297 | tmf_task.tmf = TMF_ABORT_TASK; | |
298 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
299 | ||
300 | hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, &tmf_task); | |
301 | out: | |
302 | /* Do cleanup for this task */ | |
da7b66e7 | 303 | spin_lock_irqsave(&hisi_hba->lock, flags); |
cac9b2a2 | 304 | hisi_sas_slot_task_free(hisi_hba, task, abort_slot); |
da7b66e7 | 305 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
cac9b2a2 JG |
306 | if (task->task_done) |
307 | task->task_done(task); | |
cac9b2a2 JG |
308 | } |
309 | ||
b1a49412 XC |
310 | static int hisi_sas_task_prep(struct sas_task *task, struct hisi_sas_dq |
311 | *dq, int is_tmf, struct hisi_sas_tmf_task *tmf, | |
312 | int *pass) | |
42e7a693 | 313 | { |
b1a49412 | 314 | struct hisi_hba *hisi_hba = dq->hisi_hba; |
42e7a693 JG |
315 | struct domain_device *device = task->dev; |
316 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
317 | struct hisi_sas_port *port; | |
318 | struct hisi_sas_slot *slot; | |
319 | struct hisi_sas_cmd_hdr *cmd_hdr_base; | |
2e244f0f | 320 | struct asd_sas_port *sas_port = device->port; |
11b75249 | 321 | struct device *dev = hisi_hba->dev; |
42e7a693 | 322 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
54c9dd2d | 323 | unsigned long flags; |
42e7a693 | 324 | |
2e244f0f | 325 | if (!sas_port) { |
42e7a693 JG |
326 | struct task_status_struct *ts = &task->task_status; |
327 | ||
328 | ts->resp = SAS_TASK_UNDELIVERED; | |
329 | ts->stat = SAS_PHY_DOWN; | |
330 | /* | |
331 | * libsas will use dev->port, should | |
332 | * not call task_done for sata | |
333 | */ | |
334 | if (device->dev_type != SAS_SATA_DEV) | |
335 | task->task_done(task); | |
6bf6db51 | 336 | return -ECOMM; |
42e7a693 JG |
337 | } |
338 | ||
339 | if (DEV_IS_GONE(sas_dev)) { | |
340 | if (sas_dev) | |
ad604832 | 341 | dev_info(dev, "task prep: device %d not ready\n", |
42e7a693 JG |
342 | sas_dev->device_id); |
343 | else | |
344 | dev_info(dev, "task prep: device %016llx not ready\n", | |
345 | SAS_ADDR(device->sas_addr)); | |
346 | ||
6bf6db51 | 347 | return -ECOMM; |
42e7a693 | 348 | } |
2e244f0f JG |
349 | |
350 | port = to_hisi_sas_port(sas_port); | |
9859f24e | 351 | if (port && !port->port_attached) { |
09fe9ecb | 352 | dev_info(dev, "task prep: %s port%d not attach device\n", |
6073b771 | 353 | (dev_is_sata(device)) ? |
09fe9ecb JG |
354 | "SATA/STP" : "SAS", |
355 | device->port->id); | |
356 | ||
6bf6db51 | 357 | return -ECOMM; |
42e7a693 JG |
358 | } |
359 | ||
360 | if (!sas_protocol_ata(task->task_proto)) { | |
361 | if (task->num_scatter) { | |
362 | n_elem = dma_map_sg(dev, task->scatter, | |
363 | task->num_scatter, task->data_dir); | |
364 | if (!n_elem) { | |
365 | rc = -ENOMEM; | |
366 | goto prep_out; | |
367 | } | |
368 | } | |
369 | } else | |
370 | n_elem = task->num_scatter; | |
371 | ||
b1a49412 | 372 | spin_lock_irqsave(&hisi_hba->lock, flags); |
685b6d6e JG |
373 | if (hisi_hba->hw->slot_index_alloc) |
374 | rc = hisi_hba->hw->slot_index_alloc(hisi_hba, &slot_idx, | |
375 | device); | |
376 | else | |
377 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); | |
b1a49412 XC |
378 | if (rc) { |
379 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
42e7a693 | 380 | goto err_out; |
b1a49412 XC |
381 | } |
382 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
383 | ||
384 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
42e7a693 JG |
385 | if (rc) |
386 | goto err_out_tag; | |
387 | ||
b1a49412 XC |
388 | dlvry_queue = dq->id; |
389 | dlvry_queue_slot = dq->wr_point; | |
42e7a693 JG |
390 | slot = &hisi_hba->slot_info[slot_idx]; |
391 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
392 | ||
393 | slot->idx = slot_idx; | |
394 | slot->n_elem = n_elem; | |
395 | slot->dlvry_queue = dlvry_queue; | |
396 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
397 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
398 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
399 | slot->task = task; | |
400 | slot->port = port; | |
cd938e53 XC |
401 | if (is_tmf) |
402 | slot->is_internal = true; | |
42e7a693 | 403 | task->lldd_task = slot; |
cac9b2a2 | 404 | INIT_WORK(&slot->abort_slot, hisi_sas_slot_abort); |
42e7a693 | 405 | |
f557e32c XT |
406 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
407 | GFP_ATOMIC, &slot->buf_dma); | |
408 | if (!slot->buf) { | |
9c9d18e7 | 409 | rc = -ENOMEM; |
42e7a693 | 410 | goto err_out_slot_buf; |
9c9d18e7 | 411 | } |
42e7a693 | 412 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
f557e32c XT |
413 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
414 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
42e7a693 JG |
415 | |
416 | switch (task->task_proto) { | |
66ee999b JG |
417 | case SAS_PROTOCOL_SMP: |
418 | rc = hisi_sas_task_prep_smp(hisi_hba, slot); | |
419 | break; | |
42e7a693 JG |
420 | case SAS_PROTOCOL_SSP: |
421 | rc = hisi_sas_task_prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
422 | break; | |
423 | case SAS_PROTOCOL_SATA: | |
424 | case SAS_PROTOCOL_STP: | |
425 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
6f2ff1a1 JG |
426 | rc = hisi_sas_task_prep_ata(hisi_hba, slot); |
427 | break; | |
42e7a693 JG |
428 | default: |
429 | dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n", | |
430 | task->task_proto); | |
431 | rc = -EINVAL; | |
432 | break; | |
433 | } | |
434 | ||
435 | if (rc) { | |
436 | dev_err(dev, "task prep: rc = 0x%x\n", rc); | |
f557e32c | 437 | goto err_out_buf; |
42e7a693 JG |
438 | } |
439 | ||
9feaf909 | 440 | spin_lock_irqsave(&hisi_hba->lock, flags); |
405314df | 441 | list_add_tail(&slot->entry, &sas_dev->list); |
9feaf909 | 442 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
54c9dd2d | 443 | spin_lock_irqsave(&task->task_state_lock, flags); |
42e7a693 | 444 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 445 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
42e7a693 | 446 | |
b1a49412 | 447 | dq->slot_prep = slot; |
42e7a693 JG |
448 | ++(*pass); |
449 | ||
9c9d18e7 | 450 | return 0; |
42e7a693 | 451 | |
f557e32c XT |
452 | err_out_buf: |
453 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
454 | slot->buf_dma); | |
42e7a693 JG |
455 | err_out_slot_buf: |
456 | /* Nothing to be done */ | |
457 | err_out_tag: | |
b1a49412 | 458 | spin_lock_irqsave(&hisi_hba->lock, flags); |
42e7a693 | 459 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 | 460 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
42e7a693 JG |
461 | err_out: |
462 | dev_err(dev, "task prep: failed[%d]!\n", rc); | |
463 | if (!sas_protocol_ata(task->task_proto)) | |
464 | if (n_elem) | |
dc1e4730 XC |
465 | dma_unmap_sg(dev, task->scatter, |
466 | task->num_scatter, | |
42e7a693 JG |
467 | task->data_dir); |
468 | prep_out: | |
469 | return rc; | |
470 | } | |
471 | ||
472 | static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, | |
473 | int is_tmf, struct hisi_sas_tmf_task *tmf) | |
474 | { | |
475 | u32 rc; | |
476 | u32 pass = 0; | |
477 | unsigned long flags; | |
478 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
11b75249 | 479 | struct device *dev = hisi_hba->dev; |
b1a49412 XC |
480 | struct domain_device *device = task->dev; |
481 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
482 | struct hisi_sas_dq *dq = sas_dev->dq; | |
42e7a693 | 483 | |
917d3bda | 484 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
485 | return -EINVAL; |
486 | ||
42e7a693 | 487 | /* protect task_prep and start_delivery sequence */ |
b1a49412 XC |
488 | spin_lock_irqsave(&dq->lock, flags); |
489 | rc = hisi_sas_task_prep(task, dq, is_tmf, tmf, &pass); | |
42e7a693 JG |
490 | if (rc) |
491 | dev_err(dev, "task exec: failed[%d]!\n", rc); | |
492 | ||
493 | if (likely(pass)) | |
b1a49412 XC |
494 | hisi_hba->hw->start_delivery(dq); |
495 | spin_unlock_irqrestore(&dq->lock, flags); | |
42e7a693 JG |
496 | |
497 | return rc; | |
498 | } | |
257efd1f | 499 | |
66139921 JG |
500 | static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no) |
501 | { | |
502 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
503 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
504 | struct sas_ha_struct *sas_ha; | |
505 | ||
506 | if (!phy->phy_attached) | |
507 | return; | |
508 | ||
509 | sas_ha = &hisi_hba->sha; | |
510 | sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); | |
511 | ||
512 | if (sas_phy->phy) { | |
513 | struct sas_phy *sphy = sas_phy->phy; | |
514 | ||
515 | sphy->negotiated_linkrate = sas_phy->linkrate; | |
66139921 | 516 | sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; |
2ae75787 XC |
517 | sphy->maximum_linkrate_hw = |
518 | hisi_hba->hw->phy_get_max_linkrate(); | |
519 | if (sphy->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
520 | sphy->minimum_linkrate = phy->minimum_linkrate; | |
521 | ||
522 | if (sphy->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) | |
523 | sphy->maximum_linkrate = phy->maximum_linkrate; | |
66139921 JG |
524 | } |
525 | ||
526 | if (phy->phy_type & PORT_TYPE_SAS) { | |
527 | struct sas_identify_frame *id; | |
528 | ||
529 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
530 | id->dev_type = phy->identify.device_type; | |
531 | id->initiator_bits = SAS_PROTOCOL_ALL; | |
532 | id->target_bits = phy->identify.target_port_protocols; | |
533 | } else if (phy->phy_type & PORT_TYPE_SATA) { | |
534 | /*Nothing*/ | |
535 | } | |
536 | ||
537 | sas_phy->frame_rcvd_size = phy->frame_rcvd_size; | |
538 | sas_ha->notify_port_event(sas_phy, PORTE_BYTES_DMAED); | |
539 | } | |
540 | ||
abda97c2 JG |
541 | static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) |
542 | { | |
543 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
544 | struct hisi_sas_device *sas_dev = NULL; | |
302e0901 | 545 | unsigned long flags; |
abda97c2 JG |
546 | int i; |
547 | ||
302e0901 | 548 | spin_lock_irqsave(&hisi_hba->lock, flags); |
abda97c2 JG |
549 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
550 | if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) { | |
b1a49412 XC |
551 | int queue = i % hisi_hba->queue_count; |
552 | struct hisi_sas_dq *dq = &hisi_hba->dq[queue]; | |
553 | ||
abda97c2 JG |
554 | hisi_hba->devices[i].device_id = i; |
555 | sas_dev = &hisi_hba->devices[i]; | |
556 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
557 | sas_dev->dev_type = device->dev_type; | |
558 | sas_dev->hisi_hba = hisi_hba; | |
559 | sas_dev->sas_device = device; | |
b1a49412 | 560 | sas_dev->dq = dq; |
405314df | 561 | INIT_LIST_HEAD(&hisi_hba->devices[i].list); |
abda97c2 JG |
562 | break; |
563 | } | |
564 | } | |
302e0901 | 565 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
abda97c2 JG |
566 | |
567 | return sas_dev; | |
568 | } | |
569 | ||
570 | static int hisi_sas_dev_found(struct domain_device *device) | |
571 | { | |
572 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
573 | struct domain_device *parent_dev = device->parent; | |
574 | struct hisi_sas_device *sas_dev; | |
11b75249 | 575 | struct device *dev = hisi_hba->dev; |
abda97c2 | 576 | |
685b6d6e JG |
577 | if (hisi_hba->hw->alloc_dev) |
578 | sas_dev = hisi_hba->hw->alloc_dev(device); | |
579 | else | |
580 | sas_dev = hisi_sas_alloc_dev(device); | |
abda97c2 JG |
581 | if (!sas_dev) { |
582 | dev_err(dev, "fail alloc dev: max support %d devices\n", | |
583 | HISI_SAS_MAX_DEVICES); | |
584 | return -EINVAL; | |
585 | } | |
586 | ||
587 | device->lldd_dev = sas_dev; | |
588 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); | |
589 | ||
590 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { | |
591 | int phy_no; | |
592 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
593 | struct ex_phy *phy; | |
594 | ||
595 | for (phy_no = 0; phy_no < phy_num; phy_no++) { | |
596 | phy = &parent_dev->ex_dev.ex_phy[phy_no]; | |
597 | if (SAS_ADDR(phy->attached_sas_addr) == | |
c90a0bea | 598 | SAS_ADDR(device->sas_addr)) |
abda97c2 | 599 | break; |
abda97c2 JG |
600 | } |
601 | ||
602 | if (phy_no == phy_num) { | |
603 | dev_info(dev, "dev found: no attached " | |
604 | "dev:%016llx at ex:%016llx\n", | |
605 | SAS_ADDR(device->sas_addr), | |
606 | SAS_ADDR(parent_dev->sas_addr)); | |
607 | return -EINVAL; | |
608 | } | |
609 | } | |
610 | ||
f1c88211 XC |
611 | dev_info(dev, "dev[%d:%x] found\n", |
612 | sas_dev->device_id, sas_dev->dev_type); | |
613 | ||
abda97c2 JG |
614 | return 0; |
615 | } | |
616 | ||
31eec8a6 JG |
617 | static int hisi_sas_slave_configure(struct scsi_device *sdev) |
618 | { | |
619 | struct domain_device *dev = sdev_to_domain_dev(sdev); | |
620 | int ret = sas_slave_configure(sdev); | |
621 | ||
622 | if (ret) | |
623 | return ret; | |
624 | if (!dev_is_sata(dev)) | |
625 | sas_change_queue_depth(sdev, 64); | |
626 | ||
627 | return 0; | |
628 | } | |
629 | ||
701f75ec JG |
630 | static void hisi_sas_scan_start(struct Scsi_Host *shost) |
631 | { | |
632 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
701f75ec | 633 | |
396b8044 | 634 | hisi_hba->hw->phys_init(hisi_hba); |
701f75ec JG |
635 | } |
636 | ||
637 | static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
638 | { | |
639 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
640 | struct sas_ha_struct *sha = &hisi_hba->sha; | |
641 | ||
396b8044 JG |
642 | /* Wait for PHY up interrupt to occur */ |
643 | if (time < HZ) | |
701f75ec JG |
644 | return 0; |
645 | ||
646 | sas_drain_work(sha); | |
647 | return 1; | |
648 | } | |
649 | ||
66139921 JG |
650 | static void hisi_sas_phyup_work(struct work_struct *work) |
651 | { | |
652 | struct hisi_sas_phy *phy = | |
e537b62b | 653 | container_of(work, typeof(*phy), works[HISI_PHYE_PHY_UP]); |
66139921 JG |
654 | struct hisi_hba *hisi_hba = phy->hisi_hba; |
655 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
656 | int phy_no = sas_phy->id; | |
657 | ||
658 | hisi_hba->hw->sl_notify(hisi_hba, phy_no); /* This requires a sleep */ | |
659 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
660 | } | |
976867e6 | 661 | |
057c3d1f XT |
662 | static void hisi_sas_linkreset_work(struct work_struct *work) |
663 | { | |
664 | struct hisi_sas_phy *phy = | |
665 | container_of(work, typeof(*phy), works[HISI_PHYE_LINK_RESET]); | |
666 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
667 | ||
668 | hisi_sas_control_phy(sas_phy, PHY_FUNC_LINK_RESET, NULL); | |
669 | } | |
670 | ||
e537b62b XT |
671 | static const work_func_t hisi_sas_phye_fns[HISI_PHYES_NUM] = { |
672 | [HISI_PHYE_PHY_UP] = hisi_sas_phyup_work, | |
057c3d1f | 673 | [HISI_PHYE_LINK_RESET] = hisi_sas_linkreset_work, |
e537b62b XT |
674 | }; |
675 | ||
676 | bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy, | |
677 | enum hisi_sas_phy_event event) | |
678 | { | |
679 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
680 | ||
681 | if (WARN_ON(event >= HISI_PHYES_NUM)) | |
682 | return false; | |
683 | ||
684 | return queue_work(hisi_hba->wq, &phy->works[event]); | |
685 | } | |
686 | EXPORT_SYMBOL_GPL(hisi_sas_notify_phy_event); | |
687 | ||
976867e6 JG |
688 | static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no) |
689 | { | |
690 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
691 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
e537b62b | 692 | int i; |
976867e6 JG |
693 | |
694 | phy->hisi_hba = hisi_hba; | |
695 | phy->port = NULL; | |
eba8c20c XT |
696 | phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; |
697 | phy->maximum_linkrate = hisi_hba->hw->phy_get_max_linkrate(); | |
976867e6 JG |
698 | sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0; |
699 | sas_phy->class = SAS; | |
700 | sas_phy->iproto = SAS_PROTOCOL_ALL; | |
701 | sas_phy->tproto = 0; | |
702 | sas_phy->type = PHY_TYPE_PHYSICAL; | |
703 | sas_phy->role = PHY_ROLE_INITIATOR; | |
704 | sas_phy->oob_mode = OOB_NOT_CONNECTED; | |
705 | sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; | |
706 | sas_phy->id = phy_no; | |
707 | sas_phy->sas_addr = &hisi_hba->sas_addr[0]; | |
708 | sas_phy->frame_rcvd = &phy->frame_rcvd[0]; | |
709 | sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata; | |
710 | sas_phy->lldd_phy = phy; | |
66139921 | 711 | |
e537b62b XT |
712 | for (i = 0; i < HISI_PHYES_NUM; i++) |
713 | INIT_WORK(&phy->works[i], hisi_sas_phye_fns[i]); | |
976867e6 JG |
714 | } |
715 | ||
184a4635 JG |
716 | static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy) |
717 | { | |
718 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
719 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
720 | struct hisi_sas_phy *phy = sas_phy->lldd_phy; | |
721 | struct asd_sas_port *sas_port = sas_phy->port; | |
2e244f0f | 722 | struct hisi_sas_port *port = to_hisi_sas_port(sas_port); |
184a4635 JG |
723 | unsigned long flags; |
724 | ||
725 | if (!sas_port) | |
726 | return; | |
727 | ||
728 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
729 | port->port_attached = 1; | |
730 | port->id = phy->port_id; | |
731 | phy->port = port; | |
732 | sas_port->lldd_port = port; | |
733 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
734 | } | |
735 | ||
d3c4dd4e | 736 | static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, struct sas_task *task, |
405314df | 737 | struct hisi_sas_slot *slot) |
184a4635 | 738 | { |
d3c4dd4e JG |
739 | if (task) { |
740 | unsigned long flags; | |
741 | struct task_status_struct *ts; | |
184a4635 | 742 | |
d3c4dd4e | 743 | ts = &task->task_status; |
184a4635 | 744 | |
d3c4dd4e JG |
745 | ts->resp = SAS_TASK_COMPLETE; |
746 | ts->stat = SAS_ABORTED_TASK; | |
747 | spin_lock_irqsave(&task->task_state_lock, flags); | |
748 | task->task_state_flags &= | |
749 | ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); | |
750 | task->task_state_flags |= SAS_TASK_STATE_DONE; | |
751 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
752 | } | |
184a4635 | 753 | |
405314df | 754 | hisi_sas_slot_task_free(hisi_hba, task, slot); |
184a4635 JG |
755 | } |
756 | ||
405314df | 757 | /* hisi_hba.lock should be locked */ |
184a4635 JG |
758 | static void hisi_sas_release_task(struct hisi_hba *hisi_hba, |
759 | struct domain_device *device) | |
760 | { | |
405314df JG |
761 | struct hisi_sas_slot *slot, *slot2; |
762 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
184a4635 | 763 | |
405314df JG |
764 | list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) |
765 | hisi_sas_do_release_task(hisi_hba, slot->task, slot); | |
184a4635 JG |
766 | } |
767 | ||
4d0951ee | 768 | void hisi_sas_release_tasks(struct hisi_hba *hisi_hba) |
06ec0fb9 | 769 | { |
405314df JG |
770 | struct hisi_sas_device *sas_dev; |
771 | struct domain_device *device; | |
06ec0fb9 XC |
772 | int i; |
773 | ||
405314df JG |
774 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
775 | sas_dev = &hisi_hba->devices[i]; | |
776 | device = sas_dev->sas_device; | |
06ec0fb9 | 777 | |
405314df JG |
778 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) || |
779 | !device) | |
06ec0fb9 | 780 | continue; |
405314df JG |
781 | |
782 | hisi_sas_release_task(hisi_hba, device); | |
06ec0fb9 XC |
783 | } |
784 | } | |
4d0951ee | 785 | EXPORT_SYMBOL_GPL(hisi_sas_release_tasks); |
06ec0fb9 | 786 | |
d30ff263 XC |
787 | static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba, |
788 | struct domain_device *device) | |
789 | { | |
790 | if (hisi_hba->hw->dereg_device) | |
791 | hisi_hba->hw->dereg_device(hisi_hba, device); | |
792 | } | |
793 | ||
abda97c2 JG |
794 | static void hisi_sas_dev_gone(struct domain_device *device) |
795 | { | |
796 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
797 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 798 | struct device *dev = hisi_hba->dev; |
abda97c2 | 799 | |
f1c88211 | 800 | dev_info(dev, "dev[%d:%x] is gone\n", |
abda97c2 JG |
801 | sas_dev->device_id, sas_dev->dev_type); |
802 | ||
f8e45ec2 XC |
803 | if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) { |
804 | hisi_sas_internal_task_abort(hisi_hba, device, | |
40f2702b JG |
805 | HISI_SAS_INT_ABT_DEV, 0); |
806 | ||
f8e45ec2 XC |
807 | hisi_sas_dereg_device(hisi_hba, device); |
808 | ||
809 | hisi_hba->hw->clear_itct(hisi_hba, sas_dev); | |
810 | device->lldd_dev = NULL; | |
f8e45ec2 | 811 | } |
d30ff263 | 812 | |
0258141a XT |
813 | if (hisi_hba->hw->free_device) |
814 | hisi_hba->hw->free_device(sas_dev); | |
abda97c2 | 815 | sas_dev->dev_type = SAS_PHY_UNUSED; |
abda97c2 | 816 | } |
42e7a693 JG |
817 | |
818 | static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) | |
819 | { | |
820 | return hisi_sas_task_exec(task, gfp_flags, 0, NULL); | |
821 | } | |
822 | ||
e4189d53 JG |
823 | static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func, |
824 | void *funcdata) | |
825 | { | |
826 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
827 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
828 | int phy_no = sas_phy->id; | |
829 | ||
830 | switch (func) { | |
831 | case PHY_FUNC_HARD_RESET: | |
832 | hisi_hba->hw->phy_hard_reset(hisi_hba, phy_no); | |
833 | break; | |
834 | ||
835 | case PHY_FUNC_LINK_RESET: | |
b4c67a6c JG |
836 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); |
837 | msleep(100); | |
1eb8eeac | 838 | hisi_hba->hw->phy_start(hisi_hba, phy_no); |
e4189d53 JG |
839 | break; |
840 | ||
841 | case PHY_FUNC_DISABLE: | |
842 | hisi_hba->hw->phy_disable(hisi_hba, phy_no); | |
843 | break; | |
844 | ||
845 | case PHY_FUNC_SET_LINK_RATE: | |
2ae75787 XC |
846 | hisi_hba->hw->phy_set_linkrate(hisi_hba, phy_no, funcdata); |
847 | break; | |
c52108c6 XT |
848 | case PHY_FUNC_GET_EVENTS: |
849 | if (hisi_hba->hw->get_events) { | |
850 | hisi_hba->hw->get_events(hisi_hba, phy_no); | |
851 | break; | |
852 | } | |
853 | /* fallthru */ | |
e4189d53 JG |
854 | case PHY_FUNC_RELEASE_SPINUP_HOLD: |
855 | default: | |
856 | return -EOPNOTSUPP; | |
857 | } | |
858 | return 0; | |
859 | } | |
184a4635 | 860 | |
0efff300 JG |
861 | static void hisi_sas_task_done(struct sas_task *task) |
862 | { | |
863 | if (!del_timer(&task->slow_task->timer)) | |
864 | return; | |
865 | complete(&task->slow_task->completion); | |
866 | } | |
867 | ||
77570eed | 868 | static void hisi_sas_tmf_timedout(struct timer_list *t) |
0efff300 | 869 | { |
77570eed KC |
870 | struct sas_task_slow *slow = from_timer(slow, t, timer); |
871 | struct sas_task *task = slow->task; | |
f64a6988 XC |
872 | unsigned long flags; |
873 | ||
874 | spin_lock_irqsave(&task->task_state_lock, flags); | |
875 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) | |
876 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; | |
877 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
0efff300 | 878 | |
0efff300 JG |
879 | complete(&task->slow_task->completion); |
880 | } | |
881 | ||
882 | #define TASK_TIMEOUT 20 | |
883 | #define TASK_RETRY 3 | |
bb9abc4a | 884 | #define INTERNAL_ABORT_TIMEOUT 6 |
0efff300 JG |
885 | static int hisi_sas_exec_internal_tmf_task(struct domain_device *device, |
886 | void *parameter, u32 para_len, | |
887 | struct hisi_sas_tmf_task *tmf) | |
888 | { | |
889 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
890 | struct hisi_hba *hisi_hba = sas_dev->hisi_hba; | |
11b75249 | 891 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
892 | struct sas_task *task; |
893 | int res, retry; | |
894 | ||
895 | for (retry = 0; retry < TASK_RETRY; retry++) { | |
896 | task = sas_alloc_slow_task(GFP_KERNEL); | |
897 | if (!task) | |
898 | return -ENOMEM; | |
899 | ||
900 | task->dev = device; | |
901 | task->task_proto = device->tproto; | |
902 | ||
7c594f04 XC |
903 | if (dev_is_sata(device)) { |
904 | task->ata_task.device_control_reg_update = 1; | |
905 | memcpy(&task->ata_task.fis, parameter, para_len); | |
906 | } else { | |
907 | memcpy(&task->ssp_task, parameter, para_len); | |
908 | } | |
0efff300 JG |
909 | task->task_done = hisi_sas_task_done; |
910 | ||
841b86f3 | 911 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
0efff300 JG |
912 | task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ; |
913 | add_timer(&task->slow_task->timer); | |
914 | ||
915 | res = hisi_sas_task_exec(task, GFP_KERNEL, 1, tmf); | |
916 | ||
917 | if (res) { | |
918 | del_timer(&task->slow_task->timer); | |
919 | dev_err(dev, "abort tmf: executing internal task failed: %d\n", | |
920 | res); | |
921 | goto ex_err; | |
922 | } | |
923 | ||
924 | wait_for_completion(&task->slow_task->completion); | |
925 | res = TMF_RESP_FUNC_FAILED; | |
926 | /* Even TMF timed out, return direct. */ | |
927 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
928 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
d3c4dd4e JG |
929 | struct hisi_sas_slot *slot = task->lldd_task; |
930 | ||
f1c88211 | 931 | dev_err(dev, "abort tmf: TMF task timeout and not done\n"); |
d3c4dd4e JG |
932 | if (slot) |
933 | slot->task = NULL; | |
934 | ||
0efff300 | 935 | goto ex_err; |
f1c88211 XC |
936 | } else |
937 | dev_err(dev, "abort tmf: TMF task timeout\n"); | |
0efff300 JG |
938 | } |
939 | ||
940 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
1af1b808 | 941 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { |
0efff300 JG |
942 | res = TMF_RESP_FUNC_COMPLETE; |
943 | break; | |
944 | } | |
945 | ||
4ffde482 JG |
946 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
947 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
948 | res = TMF_RESP_FUNC_SUCC; | |
949 | break; | |
950 | } | |
951 | ||
0efff300 JG |
952 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
953 | task->task_status.stat == SAS_DATA_UNDERRUN) { | |
954 | /* no error, but return the number of bytes of | |
955 | * underrun | |
956 | */ | |
957 | dev_warn(dev, "abort tmf: task to dev %016llx " | |
958 | "resp: 0x%x sts 0x%x underrun\n", | |
959 | SAS_ADDR(device->sas_addr), | |
960 | task->task_status.resp, | |
961 | task->task_status.stat); | |
962 | res = task->task_status.residual; | |
963 | break; | |
964 | } | |
965 | ||
966 | if (task->task_status.resp == SAS_TASK_COMPLETE && | |
967 | task->task_status.stat == SAS_DATA_OVERRUN) { | |
968 | dev_warn(dev, "abort tmf: blocked task error\n"); | |
969 | res = -EMSGSIZE; | |
970 | break; | |
971 | } | |
972 | ||
973 | dev_warn(dev, "abort tmf: task to dev " | |
974 | "%016llx resp: 0x%x status 0x%x\n", | |
975 | SAS_ADDR(device->sas_addr), task->task_status.resp, | |
976 | task->task_status.stat); | |
977 | sas_free_task(task); | |
978 | task = NULL; | |
979 | } | |
980 | ex_err: | |
d2d7e7a0 XC |
981 | if (retry == TASK_RETRY) |
982 | dev_warn(dev, "abort tmf: executing internal task failed!\n"); | |
0efff300 JG |
983 | sas_free_task(task); |
984 | return res; | |
985 | } | |
986 | ||
7c594f04 XC |
987 | static void hisi_sas_fill_ata_reset_cmd(struct ata_device *dev, |
988 | bool reset, int pmp, u8 *fis) | |
989 | { | |
990 | struct ata_taskfile tf; | |
991 | ||
992 | ata_tf_init(dev, &tf); | |
993 | if (reset) | |
994 | tf.ctl |= ATA_SRST; | |
995 | else | |
996 | tf.ctl &= ~ATA_SRST; | |
997 | tf.command = ATA_CMD_DEV_RESET; | |
998 | ata_tf_to_fis(&tf, pmp, 0, fis); | |
999 | } | |
1000 | ||
1001 | static int hisi_sas_softreset_ata_disk(struct domain_device *device) | |
1002 | { | |
1003 | u8 fis[20] = {0}; | |
1004 | struct ata_port *ap = device->sata_dev.ap; | |
1005 | struct ata_link *link; | |
1006 | int rc = TMF_RESP_FUNC_FAILED; | |
1007 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1008 | struct device *dev = hisi_hba->dev; |
7c594f04 XC |
1009 | int s = sizeof(struct host_to_dev_fis); |
1010 | unsigned long flags; | |
1011 | ||
1012 | ata_for_each_link(link, ap, EDGE) { | |
1013 | int pmp = sata_srst_pmp(link); | |
1014 | ||
1015 | hisi_sas_fill_ata_reset_cmd(link->device, 1, pmp, fis); | |
1016 | rc = hisi_sas_exec_internal_tmf_task(device, fis, s, NULL); | |
1017 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1018 | break; | |
1019 | } | |
1020 | ||
1021 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1022 | ata_for_each_link(link, ap, EDGE) { | |
1023 | int pmp = sata_srst_pmp(link); | |
1024 | ||
1025 | hisi_sas_fill_ata_reset_cmd(link->device, 0, pmp, fis); | |
1026 | rc = hisi_sas_exec_internal_tmf_task(device, fis, | |
1027 | s, NULL); | |
1028 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1029 | dev_err(dev, "ata disk de-reset failed\n"); | |
1030 | } | |
1031 | } else { | |
1032 | dev_err(dev, "ata disk reset failed\n"); | |
1033 | } | |
1034 | ||
1035 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1036 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1037 | hisi_sas_release_task(hisi_hba, device); | |
1038 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1039 | } | |
1040 | ||
1041 | return rc; | |
1042 | } | |
1043 | ||
0efff300 JG |
1044 | static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device, |
1045 | u8 *lun, struct hisi_sas_tmf_task *tmf) | |
1046 | { | |
1047 | struct sas_ssp_task ssp_task; | |
1048 | ||
1049 | if (!(device->tproto & SAS_PROTOCOL_SSP)) | |
1050 | return TMF_RESP_FUNC_ESUPP; | |
1051 | ||
1052 | memcpy(ssp_task.LUN, lun, 8); | |
1053 | ||
1054 | return hisi_sas_exec_internal_tmf_task(device, &ssp_task, | |
1055 | sizeof(ssp_task), tmf); | |
1056 | } | |
1057 | ||
a669bdbf | 1058 | static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba) |
917d3bda | 1059 | { |
a669bdbf | 1060 | u32 state = hisi_hba->hw->get_phys_state(hisi_hba); |
917d3bda XT |
1061 | int i; |
1062 | ||
1063 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
a669bdbf XT |
1064 | struct hisi_sas_device *sas_dev = &hisi_hba->devices[i]; |
1065 | struct domain_device *device = sas_dev->sas_device; | |
1066 | struct asd_sas_port *sas_port; | |
1067 | struct hisi_sas_port *port; | |
1068 | struct hisi_sas_phy *phy = NULL; | |
1069 | struct asd_sas_phy *sas_phy; | |
1070 | ||
917d3bda | 1071 | if ((sas_dev->dev_type == SAS_PHY_UNUSED) |
a669bdbf | 1072 | || !device || !device->port) |
917d3bda XT |
1073 | continue; |
1074 | ||
a669bdbf XT |
1075 | sas_port = device->port; |
1076 | port = to_hisi_sas_port(sas_port); | |
1077 | ||
1078 | list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el) | |
1079 | if (state & BIT(sas_phy->id)) { | |
1080 | phy = sas_phy->lldd_phy; | |
1081 | break; | |
1082 | } | |
1083 | ||
1084 | if (phy) { | |
1085 | port->id = phy->port_id; | |
917d3bda | 1086 | |
a669bdbf XT |
1087 | /* Update linkrate of directly attached device. */ |
1088 | if (!device->parent) | |
1089 | device->linkrate = phy->sas_phy.linkrate; | |
917d3bda | 1090 | |
a669bdbf XT |
1091 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); |
1092 | } else | |
1093 | port->id = 0xff; | |
917d3bda XT |
1094 | } |
1095 | } | |
1096 | ||
1097 | static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 old_state, | |
1098 | u32 state) | |
1099 | { | |
1100 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1101 | struct asd_sas_port *_sas_port = NULL; | |
1102 | int phy_no; | |
1103 | ||
1104 | for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { | |
1105 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1106 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1107 | struct asd_sas_port *sas_port = sas_phy->port; | |
917d3bda XT |
1108 | bool do_port_check = !!(_sas_port != sas_port); |
1109 | ||
1110 | if (!sas_phy->phy->enabled) | |
1111 | continue; | |
1112 | ||
1113 | /* Report PHY state change to libsas */ | |
a669bdbf XT |
1114 | if (state & BIT(phy_no)) { |
1115 | if (do_port_check && sas_port && sas_port->port_dev) { | |
917d3bda XT |
1116 | struct domain_device *dev = sas_port->port_dev; |
1117 | ||
1118 | _sas_port = sas_port; | |
917d3bda XT |
1119 | |
1120 | if (DEV_IS_EXPANDER(dev->dev_type)) | |
1121 | sas_ha->notify_port_event(sas_phy, | |
1122 | PORTE_BROADCAST_RCVD); | |
1123 | } | |
1124 | } else if (old_state & (1 << phy_no)) | |
1125 | /* PHY down but was up before */ | |
1126 | hisi_sas_phy_down(hisi_hba, phy_no, 0); | |
1127 | ||
1128 | } | |
917d3bda XT |
1129 | } |
1130 | ||
06ec0fb9 XC |
1131 | static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba) |
1132 | { | |
917d3bda XT |
1133 | struct device *dev = hisi_hba->dev; |
1134 | struct Scsi_Host *shost = hisi_hba->shost; | |
1135 | u32 old_state, state; | |
1136 | unsigned long flags; | |
06ec0fb9 XC |
1137 | int rc; |
1138 | ||
1139 | if (!hisi_hba->hw->soft_reset) | |
1140 | return -1; | |
1141 | ||
917d3bda XT |
1142 | if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) |
1143 | return -1; | |
06ec0fb9 | 1144 | |
fb51e7a8 | 1145 | dev_info(dev, "controller resetting...\n"); |
917d3bda | 1146 | old_state = hisi_hba->hw->get_phys_state(hisi_hba); |
06ec0fb9 | 1147 | |
917d3bda | 1148 | scsi_block_requests(shost); |
6f7c32d6 JG |
1149 | if (timer_pending(&hisi_hba->timer)) |
1150 | del_timer_sync(&hisi_hba->timer); | |
1151 | ||
917d3bda XT |
1152 | set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); |
1153 | rc = hisi_hba->hw->soft_reset(hisi_hba); | |
1154 | if (rc) { | |
1155 | dev_warn(dev, "controller reset failed (%d)\n", rc); | |
1156 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); | |
fb51e7a8 | 1157 | scsi_unblock_requests(shost); |
917d3bda XT |
1158 | goto out; |
1159 | } | |
1160 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1161 | hisi_sas_release_tasks(hisi_hba); | |
1162 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1163 | ||
917d3bda XT |
1164 | clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); |
1165 | ||
1166 | /* Init and wait for PHYs to come up and all libsas event finished. */ | |
1167 | hisi_hba->hw->phys_init(hisi_hba); | |
1168 | msleep(1000); | |
a669bdbf | 1169 | hisi_sas_refresh_port_id(hisi_hba); |
fb51e7a8 | 1170 | scsi_unblock_requests(shost); |
917d3bda XT |
1171 | |
1172 | state = hisi_hba->hw->get_phys_state(hisi_hba); | |
1173 | hisi_sas_rescan_topology(hisi_hba, old_state, state); | |
fb51e7a8 | 1174 | dev_info(dev, "controller reset complete\n"); |
06ec0fb9 XC |
1175 | |
1176 | out: | |
06ec0fb9 | 1177 | clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); |
917d3bda | 1178 | |
06ec0fb9 XC |
1179 | return rc; |
1180 | } | |
1181 | ||
0efff300 JG |
1182 | static int hisi_sas_abort_task(struct sas_task *task) |
1183 | { | |
1184 | struct scsi_lun lun; | |
1185 | struct hisi_sas_tmf_task tmf_task; | |
1186 | struct domain_device *device = task->dev; | |
1187 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
c6ef8954 XC |
1188 | struct hisi_hba *hisi_hba; |
1189 | struct device *dev; | |
0efff300 JG |
1190 | int rc = TMF_RESP_FUNC_FAILED; |
1191 | unsigned long flags; | |
1192 | ||
c6ef8954 | 1193 | if (!sas_dev) |
0efff300 | 1194 | return TMF_RESP_FUNC_FAILED; |
c6ef8954 XC |
1195 | |
1196 | hisi_hba = dev_to_hisi_hba(task->dev); | |
1197 | dev = hisi_hba->dev; | |
0efff300 | 1198 | |
b81b6cce | 1199 | spin_lock_irqsave(&task->task_state_lock, flags); |
0efff300 | 1200 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { |
b81b6cce | 1201 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
0efff300 JG |
1202 | rc = TMF_RESP_FUNC_COMPLETE; |
1203 | goto out; | |
1204 | } | |
b81b6cce XC |
1205 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
1206 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
0efff300 | 1207 | |
0efff300 JG |
1208 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
1209 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1210 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1211 | struct hisi_sas_slot *slot = task->lldd_task; | |
1212 | u32 tag = slot->idx; | |
c35279f2 | 1213 | int rc2; |
0efff300 JG |
1214 | |
1215 | int_to_scsilun(cmnd->device->lun, &lun); | |
1216 | tmf_task.tmf = TMF_ABORT_TASK; | |
1217 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1218 | ||
1219 | rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, | |
1220 | &tmf_task); | |
1221 | ||
c35279f2 JG |
1222 | rc2 = hisi_sas_internal_task_abort(hisi_hba, device, |
1223 | HISI_SAS_INT_ABT_CMD, tag); | |
813709f2 XT |
1224 | if (rc2 < 0) { |
1225 | dev_err(dev, "abort task: internal abort (%d)\n", rc2); | |
1226 | return TMF_RESP_FUNC_FAILED; | |
1227 | } | |
1228 | ||
c35279f2 JG |
1229 | /* |
1230 | * If the TMF finds that the IO is not in the device and also | |
1231 | * the internal abort does not succeed, then it is safe to | |
1232 | * free the slot. | |
1233 | * Note: if the internal abort succeeds then the slot | |
1234 | * will have already been completed | |
1235 | */ | |
1236 | if (rc == TMF_RESP_FUNC_COMPLETE && rc2 != TMF_RESP_FUNC_SUCC) { | |
0efff300 | 1237 | if (task->lldd_task) { |
0efff300 | 1238 | spin_lock_irqsave(&hisi_hba->lock, flags); |
c35279f2 | 1239 | hisi_sas_do_release_task(hisi_hba, task, slot); |
0efff300 JG |
1240 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1241 | } | |
1242 | } | |
0efff300 JG |
1243 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1244 | task->task_proto & SAS_PROTOCOL_STP) { | |
1245 | if (task->dev->dev_type == SAS_SATA_DEV) { | |
813709f2 XT |
1246 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1247 | HISI_SAS_INT_ABT_DEV, 0); | |
1248 | if (rc < 0) { | |
1249 | dev_err(dev, "abort task: internal abort failed\n"); | |
1250 | goto out; | |
1251 | } | |
d30ff263 | 1252 | hisi_sas_dereg_device(hisi_hba, device); |
7c594f04 | 1253 | rc = hisi_sas_softreset_ata_disk(device); |
0efff300 | 1254 | } |
eb045e04 | 1255 | } else if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SMP) { |
dc8a49ca JG |
1256 | /* SMP */ |
1257 | struct hisi_sas_slot *slot = task->lldd_task; | |
1258 | u32 tag = slot->idx; | |
0efff300 | 1259 | |
ccbfe5a0 XC |
1260 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1261 | HISI_SAS_INT_ABT_CMD, tag); | |
813709f2 XT |
1262 | if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) && |
1263 | task->lldd_task) { | |
ccbfe5a0 XC |
1264 | spin_lock_irqsave(&hisi_hba->lock, flags); |
1265 | hisi_sas_do_release_task(hisi_hba, task, slot); | |
1266 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1267 | } | |
0efff300 JG |
1268 | } |
1269 | ||
1270 | out: | |
1271 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1272 | dev_notice(dev, "abort task: rc=%d\n", rc); | |
1273 | return rc; | |
1274 | } | |
1275 | ||
1276 | static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun) | |
1277 | { | |
2a038131 XT |
1278 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); |
1279 | struct device *dev = hisi_hba->dev; | |
0efff300 JG |
1280 | struct hisi_sas_tmf_task tmf_task; |
1281 | int rc = TMF_RESP_FUNC_FAILED; | |
2a038131 XT |
1282 | unsigned long flags; |
1283 | ||
1284 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1285 | HISI_SAS_INT_ABT_DEV, 0); | |
1286 | if (rc < 0) { | |
1287 | dev_err(dev, "abort task set: internal abort rc=%d\n", rc); | |
1288 | return TMF_RESP_FUNC_FAILED; | |
1289 | } | |
1290 | hisi_sas_dereg_device(hisi_hba, device); | |
0efff300 JG |
1291 | |
1292 | tmf_task.tmf = TMF_ABORT_TASK_SET; | |
1293 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1294 | ||
2a038131 XT |
1295 | if (rc == TMF_RESP_FUNC_COMPLETE) { |
1296 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1297 | hisi_sas_release_task(hisi_hba, device); | |
1298 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1299 | } | |
1300 | ||
0efff300 JG |
1301 | return rc; |
1302 | } | |
1303 | ||
1304 | static int hisi_sas_clear_aca(struct domain_device *device, u8 *lun) | |
1305 | { | |
1306 | int rc = TMF_RESP_FUNC_FAILED; | |
1307 | struct hisi_sas_tmf_task tmf_task; | |
1308 | ||
1309 | tmf_task.tmf = TMF_CLEAR_ACA; | |
1310 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); | |
1311 | ||
1312 | return rc; | |
1313 | } | |
1314 | ||
1315 | static int hisi_sas_debug_I_T_nexus_reset(struct domain_device *device) | |
1316 | { | |
1317 | struct sas_phy *phy = sas_get_local_phy(device); | |
1318 | int rc, reset_type = (device->dev_type == SAS_SATA_DEV || | |
1319 | (device->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; | |
1320 | rc = sas_phy_reset(phy, reset_type); | |
1321 | sas_put_local_phy(phy); | |
1322 | msleep(2000); | |
1323 | return rc; | |
1324 | } | |
1325 | ||
1326 | static int hisi_sas_I_T_nexus_reset(struct domain_device *device) | |
1327 | { | |
1328 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
1329 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
813709f2 | 1330 | struct device *dev = hisi_hba->dev; |
0efff300 | 1331 | int rc = TMF_RESP_FUNC_FAILED; |
813709f2 | 1332 | unsigned long flags; |
0efff300 JG |
1333 | |
1334 | if (sas_dev->dev_status != HISI_SAS_DEV_EH) | |
1335 | return TMF_RESP_FUNC_FAILED; | |
1336 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
1337 | ||
813709f2 | 1338 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
d30ff263 | 1339 | HISI_SAS_INT_ABT_DEV, 0); |
813709f2 XT |
1340 | if (rc < 0) { |
1341 | dev_err(dev, "I_T nexus reset: internal abort (%d)\n", rc); | |
1342 | return TMF_RESP_FUNC_FAILED; | |
1343 | } | |
d30ff263 XC |
1344 | hisi_sas_dereg_device(hisi_hba, device); |
1345 | ||
0efff300 JG |
1346 | rc = hisi_sas_debug_I_T_nexus_reset(device); |
1347 | ||
9960a24a | 1348 | if ((rc == TMF_RESP_FUNC_COMPLETE) || (rc == -ENODEV)) { |
6131243a XC |
1349 | spin_lock_irqsave(&hisi_hba->lock, flags); |
1350 | hisi_sas_release_task(hisi_hba, device); | |
1351 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1352 | } | |
1353 | return rc; | |
0efff300 JG |
1354 | } |
1355 | ||
1356 | static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun) | |
1357 | { | |
0efff300 JG |
1358 | struct hisi_sas_device *sas_dev = device->lldd_dev; |
1359 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
11b75249 | 1360 | struct device *dev = hisi_hba->dev; |
0efff300 JG |
1361 | unsigned long flags; |
1362 | int rc = TMF_RESP_FUNC_FAILED; | |
1363 | ||
0efff300 | 1364 | sas_dev->dev_status = HISI_SAS_DEV_EH; |
055945df JG |
1365 | if (dev_is_sata(device)) { |
1366 | struct sas_phy *phy; | |
1367 | ||
1368 | /* Clear internal IO and then hardreset */ | |
1369 | rc = hisi_sas_internal_task_abort(hisi_hba, device, | |
1370 | HISI_SAS_INT_ABT_DEV, 0); | |
813709f2 XT |
1371 | if (rc < 0) { |
1372 | dev_err(dev, "lu_reset: internal abort failed\n"); | |
055945df | 1373 | goto out; |
813709f2 | 1374 | } |
d30ff263 | 1375 | hisi_sas_dereg_device(hisi_hba, device); |
0efff300 | 1376 | |
055945df JG |
1377 | phy = sas_get_local_phy(device); |
1378 | ||
1379 | rc = sas_phy_reset(phy, 1); | |
1380 | ||
1381 | if (rc == 0) { | |
1382 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1383 | hisi_sas_release_task(hisi_hba, device); | |
1384 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1385 | } | |
1386 | sas_put_local_phy(phy); | |
1387 | } else { | |
1388 | struct hisi_sas_tmf_task tmf_task = { .tmf = TMF_LU_RESET }; | |
1389 | ||
2a038131 XT |
1390 | rc = hisi_sas_internal_task_abort(hisi_hba, device, |
1391 | HISI_SAS_INT_ABT_DEV, 0); | |
1392 | if (rc < 0) { | |
1393 | dev_err(dev, "lu_reset: internal abort failed\n"); | |
1394 | goto out; | |
1395 | } | |
1396 | hisi_sas_dereg_device(hisi_hba, device); | |
1397 | ||
055945df JG |
1398 | rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task); |
1399 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1400 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
1401 | hisi_sas_release_task(hisi_hba, device); | |
1402 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1403 | } | |
1404 | } | |
1405 | out: | |
14d3f397 | 1406 | if (rc != TMF_RESP_FUNC_COMPLETE) |
ad604832 | 1407 | dev_err(dev, "lu_reset: for device[%d]:rc= %d\n", |
14d3f397 | 1408 | sas_dev->device_id, rc); |
0efff300 JG |
1409 | return rc; |
1410 | } | |
1411 | ||
8b05ad6a JG |
1412 | static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha) |
1413 | { | |
1414 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
e402acdb | 1415 | HISI_SAS_DECLARE_RST_WORK_ON_STACK(r); |
8b05ad6a | 1416 | |
e402acdb XT |
1417 | queue_work(hisi_hba->wq, &r.work); |
1418 | wait_for_completion(r.completion); | |
1419 | if (r.done) | |
1420 | return TMF_RESP_FUNC_COMPLETE; | |
1421 | ||
1422 | return TMF_RESP_FUNC_FAILED; | |
8b05ad6a JG |
1423 | } |
1424 | ||
0efff300 JG |
1425 | static int hisi_sas_query_task(struct sas_task *task) |
1426 | { | |
1427 | struct scsi_lun lun; | |
1428 | struct hisi_sas_tmf_task tmf_task; | |
1429 | int rc = TMF_RESP_FUNC_FAILED; | |
1430 | ||
1431 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1432 | struct scsi_cmnd *cmnd = task->uldd_task; | |
1433 | struct domain_device *device = task->dev; | |
1434 | struct hisi_sas_slot *slot = task->lldd_task; | |
1435 | u32 tag = slot->idx; | |
1436 | ||
1437 | int_to_scsilun(cmnd->device->lun, &lun); | |
1438 | tmf_task.tmf = TMF_QUERY_TASK; | |
1439 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
1440 | ||
1441 | rc = hisi_sas_debug_issue_ssp_tmf(device, | |
1442 | lun.scsi_lun, | |
1443 | &tmf_task); | |
1444 | switch (rc) { | |
1445 | /* The task is still in Lun, release it then */ | |
1446 | case TMF_RESP_FUNC_SUCC: | |
1447 | /* The task is not in Lun or failed, reset the phy */ | |
1448 | case TMF_RESP_FUNC_FAILED: | |
1449 | case TMF_RESP_FUNC_COMPLETE: | |
1450 | break; | |
997ee43c XC |
1451 | default: |
1452 | rc = TMF_RESP_FUNC_FAILED; | |
1453 | break; | |
0efff300 JG |
1454 | } |
1455 | } | |
1456 | return rc; | |
1457 | } | |
1458 | ||
441c2740 | 1459 | static int |
ad604832 | 1460 | hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id, |
441c2740 JG |
1461 | struct sas_task *task, int abort_flag, |
1462 | int task_tag) | |
1463 | { | |
1464 | struct domain_device *device = task->dev; | |
1465 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1466 | struct device *dev = hisi_hba->dev; |
441c2740 JG |
1467 | struct hisi_sas_port *port; |
1468 | struct hisi_sas_slot *slot; | |
2e244f0f | 1469 | struct asd_sas_port *sas_port = device->port; |
441c2740 | 1470 | struct hisi_sas_cmd_hdr *cmd_hdr_base; |
b1a49412 | 1471 | struct hisi_sas_dq *dq = sas_dev->dq; |
441c2740 | 1472 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; |
b1a49412 | 1473 | unsigned long flags, flags_dq; |
441c2740 | 1474 | |
917d3bda | 1475 | if (unlikely(test_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags))) |
06ec0fb9 XC |
1476 | return -EINVAL; |
1477 | ||
441c2740 JG |
1478 | if (!device->port) |
1479 | return -1; | |
1480 | ||
2e244f0f | 1481 | port = to_hisi_sas_port(sas_port); |
441c2740 JG |
1482 | |
1483 | /* simply get a slot and send abort command */ | |
b1a49412 | 1484 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1485 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); |
b1a49412 XC |
1486 | if (rc) { |
1487 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
441c2740 | 1488 | goto err_out; |
b1a49412 XC |
1489 | } |
1490 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
1491 | ||
1492 | spin_lock_irqsave(&dq->lock, flags_dq); | |
1493 | rc = hisi_hba->hw->get_free_slot(hisi_hba, dq); | |
441c2740 JG |
1494 | if (rc) |
1495 | goto err_out_tag; | |
1496 | ||
b1a49412 XC |
1497 | dlvry_queue = dq->id; |
1498 | dlvry_queue_slot = dq->wr_point; | |
1499 | ||
441c2740 JG |
1500 | slot = &hisi_hba->slot_info[slot_idx]; |
1501 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
1502 | ||
1503 | slot->idx = slot_idx; | |
1504 | slot->n_elem = n_elem; | |
1505 | slot->dlvry_queue = dlvry_queue; | |
1506 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
1507 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
1508 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
1509 | slot->task = task; | |
1510 | slot->port = port; | |
cd938e53 | 1511 | slot->is_internal = true; |
441c2740 JG |
1512 | task->lldd_task = slot; |
1513 | ||
031da09c XC |
1514 | slot->buf = dma_pool_alloc(hisi_hba->buffer_pool, |
1515 | GFP_ATOMIC, &slot->buf_dma); | |
1516 | if (!slot->buf) { | |
1517 | rc = -ENOMEM; | |
1518 | goto err_out_tag; | |
1519 | } | |
1520 | ||
441c2740 | 1521 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); |
031da09c XC |
1522 | memset(hisi_sas_cmd_hdr_addr_mem(slot), 0, HISI_SAS_COMMAND_TABLE_SZ); |
1523 | memset(hisi_sas_status_buf_addr_mem(slot), 0, HISI_SAS_STATUS_BUF_SZ); | |
441c2740 JG |
1524 | |
1525 | rc = hisi_sas_task_prep_abort(hisi_hba, slot, device_id, | |
1526 | abort_flag, task_tag); | |
1527 | if (rc) | |
031da09c | 1528 | goto err_out_buf; |
441c2740 | 1529 | |
9feaf909 | 1530 | spin_lock_irqsave(&hisi_hba->lock, flags); |
405314df | 1531 | list_add_tail(&slot->entry, &sas_dev->list); |
9feaf909 | 1532 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
54c9dd2d | 1533 | spin_lock_irqsave(&task->task_state_lock, flags); |
441c2740 | 1534 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; |
54c9dd2d | 1535 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
441c2740 | 1536 | |
b1a49412 | 1537 | dq->slot_prep = slot; |
441c2740 | 1538 | |
b1a49412 XC |
1539 | /* send abort command to the chip */ |
1540 | hisi_hba->hw->start_delivery(dq); | |
1541 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1542 | |
1543 | return 0; | |
1544 | ||
031da09c XC |
1545 | err_out_buf: |
1546 | dma_pool_free(hisi_hba->buffer_pool, slot->buf, | |
1547 | slot->buf_dma); | |
441c2740 | 1548 | err_out_tag: |
b1a49412 | 1549 | spin_lock_irqsave(&hisi_hba->lock, flags); |
441c2740 | 1550 | hisi_sas_slot_index_free(hisi_hba, slot_idx); |
b1a49412 XC |
1551 | spin_unlock_irqrestore(&hisi_hba->lock, flags); |
1552 | spin_unlock_irqrestore(&dq->lock, flags_dq); | |
441c2740 JG |
1553 | err_out: |
1554 | dev_err(dev, "internal abort task prep: failed[%d]!\n", rc); | |
1555 | ||
1556 | return rc; | |
1557 | } | |
1558 | ||
1559 | /** | |
1560 | * hisi_sas_internal_task_abort -- execute an internal | |
1561 | * abort command for single IO command or a device | |
1562 | * @hisi_hba: host controller struct | |
1563 | * @device: domain device | |
1564 | * @abort_flag: mode of operation, device or single IO | |
1565 | * @tag: tag of IO to be aborted (only relevant to single | |
1566 | * IO mode) | |
1567 | */ | |
1568 | static int | |
1569 | hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba, | |
1570 | struct domain_device *device, | |
1571 | int abort_flag, int tag) | |
1572 | { | |
1573 | struct sas_task *task; | |
1574 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
11b75249 | 1575 | struct device *dev = hisi_hba->dev; |
441c2740 | 1576 | int res; |
441c2740 | 1577 | |
813709f2 XT |
1578 | /* |
1579 | * The interface is not realized means this HW don't support internal | |
1580 | * abort, or don't need to do internal abort. Then here, we return | |
1581 | * TMF_RESP_FUNC_FAILED and let other steps go on, which depends that | |
1582 | * the internal abort has been executed and returned CQ. | |
1583 | */ | |
441c2740 | 1584 | if (!hisi_hba->hw->prep_abort) |
813709f2 | 1585 | return TMF_RESP_FUNC_FAILED; |
441c2740 JG |
1586 | |
1587 | task = sas_alloc_slow_task(GFP_KERNEL); | |
1588 | if (!task) | |
1589 | return -ENOMEM; | |
1590 | ||
1591 | task->dev = device; | |
1592 | task->task_proto = device->tproto; | |
1593 | task->task_done = hisi_sas_task_done; | |
841b86f3 | 1594 | task->slow_task->timer.function = hisi_sas_tmf_timedout; |
bb9abc4a | 1595 | task->slow_task->timer.expires = jiffies + INTERNAL_ABORT_TIMEOUT*HZ; |
441c2740 JG |
1596 | add_timer(&task->slow_task->timer); |
1597 | ||
441c2740 JG |
1598 | res = hisi_sas_internal_abort_task_exec(hisi_hba, sas_dev->device_id, |
1599 | task, abort_flag, tag); | |
441c2740 JG |
1600 | if (res) { |
1601 | del_timer(&task->slow_task->timer); | |
1602 | dev_err(dev, "internal task abort: executing internal task failed: %d\n", | |
1603 | res); | |
1604 | goto exit; | |
1605 | } | |
1606 | wait_for_completion(&task->slow_task->completion); | |
1607 | res = TMF_RESP_FUNC_FAILED; | |
1608 | ||
f64a6988 XC |
1609 | /* Internal abort timed out */ |
1610 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
1611 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
1612 | struct hisi_sas_slot *slot = task->lldd_task; | |
1613 | ||
1614 | if (slot) | |
1615 | slot->task = NULL; | |
f1c88211 | 1616 | dev_err(dev, "internal task abort: timeout and not done.\n"); |
813709f2 | 1617 | res = -EIO; |
f692a677 | 1618 | goto exit; |
f1c88211 XC |
1619 | } else |
1620 | dev_err(dev, "internal task abort: timeout.\n"); | |
f64a6988 XC |
1621 | } |
1622 | ||
441c2740 JG |
1623 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1624 | task->task_status.stat == TMF_RESP_FUNC_COMPLETE) { | |
1625 | res = TMF_RESP_FUNC_COMPLETE; | |
1626 | goto exit; | |
1627 | } | |
1628 | ||
c35279f2 JG |
1629 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1630 | task->task_status.stat == TMF_RESP_FUNC_SUCC) { | |
1631 | res = TMF_RESP_FUNC_SUCC; | |
1632 | goto exit; | |
1633 | } | |
1634 | ||
441c2740 | 1635 | exit: |
297d7302 | 1636 | dev_dbg(dev, "internal task abort: task to dev %016llx task=%p " |
441c2740 JG |
1637 | "resp: 0x%x sts 0x%x\n", |
1638 | SAS_ADDR(device->sas_addr), | |
1639 | task, | |
1640 | task->task_status.resp, /* 0 is complete, -1 is undelivered */ | |
1641 | task->task_status.stat); | |
1642 | sas_free_task(task); | |
1643 | ||
1644 | return res; | |
1645 | } | |
1646 | ||
184a4635 JG |
1647 | static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy) |
1648 | { | |
1649 | hisi_sas_port_notify_formed(sas_phy); | |
1650 | } | |
1651 | ||
336bd78b XC |
1652 | static void hisi_sas_port_deformed(struct asd_sas_phy *sas_phy) |
1653 | { | |
1654 | } | |
1655 | ||
6379c560 XT |
1656 | static int hisi_sas_write_gpio(struct sas_ha_struct *sha, u8 reg_type, |
1657 | u8 reg_index, u8 reg_count, u8 *write_data) | |
1658 | { | |
1659 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
1660 | ||
1661 | if (!hisi_hba->hw->write_gpio) | |
1662 | return -EOPNOTSUPP; | |
1663 | ||
1664 | return hisi_hba->hw->write_gpio(hisi_hba, reg_type, | |
1665 | reg_index, reg_count, write_data); | |
1666 | } | |
1667 | ||
184a4635 JG |
1668 | static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy) |
1669 | { | |
1670 | phy->phy_attached = 0; | |
1671 | phy->phy_type = 0; | |
1672 | phy->port = NULL; | |
1673 | } | |
1674 | ||
1675 | void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) | |
1676 | { | |
1677 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
1678 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
1679 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
1680 | ||
1681 | if (rdy) { | |
1682 | /* Phy down but ready */ | |
1683 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
1684 | hisi_sas_port_notify_formed(sas_phy); | |
1685 | } else { | |
1686 | struct hisi_sas_port *port = phy->port; | |
1687 | ||
1688 | /* Phy down and not ready */ | |
1689 | sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL); | |
1690 | sas_phy_disconnected(sas_phy); | |
1691 | ||
1692 | if (port) { | |
1693 | if (phy->phy_type & PORT_TYPE_SAS) { | |
1694 | int port_id = port->id; | |
1695 | ||
1696 | if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba, | |
1697 | port_id)) | |
1698 | port->port_attached = 0; | |
1699 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
1700 | port->port_attached = 0; | |
1701 | } | |
1702 | hisi_sas_phy_disconnected(phy); | |
1703 | } | |
1704 | } | |
1705 | EXPORT_SYMBOL_GPL(hisi_sas_phy_down); | |
1706 | ||
571295f8 XT |
1707 | void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba) |
1708 | { | |
1709 | int i; | |
1710 | ||
1711 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1712 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
1713 | ||
1714 | tasklet_kill(&cq->tasklet); | |
1715 | } | |
1716 | } | |
1717 | EXPORT_SYMBOL_GPL(hisi_sas_kill_tasklets); | |
06ec0fb9 | 1718 | |
e21fe3a5 JG |
1719 | struct scsi_transport_template *hisi_sas_stt; |
1720 | EXPORT_SYMBOL_GPL(hisi_sas_stt); | |
e8899fad | 1721 | |
1e15feac | 1722 | static struct device_attribute *host_attrs[] = { |
8eea9dd8 JY |
1723 | &dev_attr_phy_event_threshold, |
1724 | NULL, | |
1725 | }; | |
1726 | ||
e21fe3a5 | 1727 | static struct scsi_host_template _hisi_sas_sht = { |
7eb7869f JG |
1728 | .module = THIS_MODULE, |
1729 | .name = DRV_NAME, | |
1730 | .queuecommand = sas_queuecommand, | |
1731 | .target_alloc = sas_target_alloc, | |
31eec8a6 | 1732 | .slave_configure = hisi_sas_slave_configure, |
701f75ec JG |
1733 | .scan_finished = hisi_sas_scan_finished, |
1734 | .scan_start = hisi_sas_scan_start, | |
7eb7869f JG |
1735 | .change_queue_depth = sas_change_queue_depth, |
1736 | .bios_param = sas_bios_param, | |
1737 | .can_queue = 1, | |
1738 | .this_id = -1, | |
1739 | .sg_tablesize = SG_ALL, | |
1740 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, | |
1741 | .use_clustering = ENABLE_CLUSTERING, | |
1742 | .eh_device_reset_handler = sas_eh_device_reset_handler, | |
cc199e78 | 1743 | .eh_target_reset_handler = sas_eh_target_reset_handler, |
7eb7869f JG |
1744 | .target_destroy = sas_target_destroy, |
1745 | .ioctl = sas_ioctl, | |
8eea9dd8 | 1746 | .shost_attrs = host_attrs, |
7eb7869f | 1747 | }; |
e21fe3a5 JG |
1748 | struct scsi_host_template *hisi_sas_sht = &_hisi_sas_sht; |
1749 | EXPORT_SYMBOL_GPL(hisi_sas_sht); | |
7eb7869f | 1750 | |
e8899fad | 1751 | static struct sas_domain_function_template hisi_sas_transport_ops = { |
abda97c2 JG |
1752 | .lldd_dev_found = hisi_sas_dev_found, |
1753 | .lldd_dev_gone = hisi_sas_dev_gone, | |
42e7a693 | 1754 | .lldd_execute_task = hisi_sas_queue_command, |
e4189d53 | 1755 | .lldd_control_phy = hisi_sas_control_phy, |
0efff300 JG |
1756 | .lldd_abort_task = hisi_sas_abort_task, |
1757 | .lldd_abort_task_set = hisi_sas_abort_task_set, | |
1758 | .lldd_clear_aca = hisi_sas_clear_aca, | |
1759 | .lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset, | |
1760 | .lldd_lu_reset = hisi_sas_lu_reset, | |
1761 | .lldd_query_task = hisi_sas_query_task, | |
8b05ad6a | 1762 | .lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha, |
184a4635 | 1763 | .lldd_port_formed = hisi_sas_port_formed, |
336bd78b | 1764 | .lldd_port_deformed = hisi_sas_port_deformed, |
6379c560 | 1765 | .lldd_write_gpio = hisi_sas_write_gpio, |
e8899fad JG |
1766 | }; |
1767 | ||
06ec0fb9 XC |
1768 | void hisi_sas_init_mem(struct hisi_hba *hisi_hba) |
1769 | { | |
1770 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; | |
1771 | ||
1772 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1773 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; | |
1774 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; | |
1775 | ||
1776 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1777 | memset(hisi_hba->cmd_hdr[i], 0, s); | |
1778 | dq->wr_point = 0; | |
1779 | ||
1780 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1781 | memset(hisi_hba->complete_hdr[i], 0, s); | |
1782 | cq->rd_point = 0; | |
1783 | } | |
1784 | ||
1785 | s = sizeof(struct hisi_sas_initial_fis) * hisi_hba->n_phy; | |
1786 | memset(hisi_hba->initial_fis, 0, s); | |
1787 | ||
1788 | s = max_command_entries * sizeof(struct hisi_sas_iost); | |
1789 | memset(hisi_hba->iost, 0, s); | |
1790 | ||
1791 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); | |
1792 | memset(hisi_hba->breakpoint, 0, s); | |
1793 | ||
3297ded1 | 1794 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
06ec0fb9 XC |
1795 | memset(hisi_hba->sata_breakpoint, 0, s); |
1796 | } | |
1797 | EXPORT_SYMBOL_GPL(hisi_sas_init_mem); | |
1798 | ||
e21fe3a5 | 1799 | int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost) |
6be6de18 | 1800 | { |
11b75249 | 1801 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1802 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
6be6de18 | 1803 | |
fa42d80d | 1804 | spin_lock_init(&hisi_hba->lock); |
976867e6 JG |
1805 | for (i = 0; i < hisi_hba->n_phy; i++) { |
1806 | hisi_sas_phy_init(hisi_hba, i); | |
1807 | hisi_hba->port[i].port_attached = 0; | |
1808 | hisi_hba->port[i].id = -1; | |
976867e6 JG |
1809 | } |
1810 | ||
af740dbe JG |
1811 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
1812 | hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED; | |
1813 | hisi_hba->devices[i].device_id = i; | |
1814 | hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL; | |
1815 | } | |
1816 | ||
6be6de18 | 1817 | for (i = 0; i < hisi_hba->queue_count; i++) { |
9101a079 | 1818 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
4fde02ad | 1819 | struct hisi_sas_dq *dq = &hisi_hba->dq[i]; |
9101a079 JG |
1820 | |
1821 | /* Completion queue structure */ | |
1822 | cq->id = i; | |
1823 | cq->hisi_hba = hisi_hba; | |
1824 | ||
4fde02ad | 1825 | /* Delivery queue structure */ |
39bade0c | 1826 | spin_lock_init(&dq->lock); |
4fde02ad JG |
1827 | dq->id = i; |
1828 | dq->hisi_hba = hisi_hba; | |
1829 | ||
6be6de18 JG |
1830 | /* Delivery queue */ |
1831 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1832 | hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s, | |
1833 | &hisi_hba->cmd_hdr_dma[i], GFP_KERNEL); | |
1834 | if (!hisi_hba->cmd_hdr[i]) | |
1835 | goto err_out; | |
6be6de18 JG |
1836 | |
1837 | /* Completion queue */ | |
1838 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1839 | hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s, | |
1840 | &hisi_hba->complete_hdr_dma[i], GFP_KERNEL); | |
1841 | if (!hisi_hba->complete_hdr[i]) | |
1842 | goto err_out; | |
6be6de18 JG |
1843 | } |
1844 | ||
f557e32c XT |
1845 | s = sizeof(struct hisi_sas_slot_buf_table); |
1846 | hisi_hba->buffer_pool = dma_pool_create("dma_buffer", dev, s, 16, 0); | |
1847 | if (!hisi_hba->buffer_pool) | |
6be6de18 JG |
1848 | goto err_out; |
1849 | ||
1850 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
4f4e21b8 | 1851 | hisi_hba->itct = dma_zalloc_coherent(dev, s, &hisi_hba->itct_dma, |
6be6de18 JG |
1852 | GFP_KERNEL); |
1853 | if (!hisi_hba->itct) | |
1854 | goto err_out; | |
1855 | ||
a8d547bd | 1856 | hisi_hba->slot_info = devm_kcalloc(dev, max_command_entries, |
6be6de18 JG |
1857 | sizeof(struct hisi_sas_slot), |
1858 | GFP_KERNEL); | |
1859 | if (!hisi_hba->slot_info) | |
1860 | goto err_out; | |
1861 | ||
a8d547bd | 1862 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
6be6de18 JG |
1863 | hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma, |
1864 | GFP_KERNEL); | |
1865 | if (!hisi_hba->iost) | |
1866 | goto err_out; | |
1867 | ||
a8d547bd | 1868 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
6be6de18 JG |
1869 | hisi_hba->breakpoint = dma_alloc_coherent(dev, s, |
1870 | &hisi_hba->breakpoint_dma, GFP_KERNEL); | |
1871 | if (!hisi_hba->breakpoint) | |
1872 | goto err_out; | |
1873 | ||
a8d547bd | 1874 | hisi_hba->slot_index_count = max_command_entries; |
433f5696 | 1875 | s = hisi_hba->slot_index_count / BITS_PER_BYTE; |
257efd1f JG |
1876 | hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL); |
1877 | if (!hisi_hba->slot_index_tags) | |
1878 | goto err_out; | |
1879 | ||
6be6de18 JG |
1880 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; |
1881 | hisi_hba->initial_fis = dma_alloc_coherent(dev, s, | |
1882 | &hisi_hba->initial_fis_dma, GFP_KERNEL); | |
1883 | if (!hisi_hba->initial_fis) | |
1884 | goto err_out; | |
6be6de18 | 1885 | |
3297ded1 | 1886 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
6be6de18 JG |
1887 | hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s, |
1888 | &hisi_hba->sata_breakpoint_dma, GFP_KERNEL); | |
1889 | if (!hisi_hba->sata_breakpoint) | |
1890 | goto err_out; | |
06ec0fb9 | 1891 | hisi_sas_init_mem(hisi_hba); |
6be6de18 | 1892 | |
257efd1f JG |
1893 | hisi_sas_slot_index_init(hisi_hba); |
1894 | ||
7e9080e1 JG |
1895 | hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); |
1896 | if (!hisi_hba->wq) { | |
1897 | dev_err(dev, "sas_alloc: failed to create workqueue\n"); | |
1898 | goto err_out; | |
1899 | } | |
1900 | ||
6be6de18 JG |
1901 | return 0; |
1902 | err_out: | |
1903 | return -ENOMEM; | |
1904 | } | |
e21fe3a5 | 1905 | EXPORT_SYMBOL_GPL(hisi_sas_alloc); |
6be6de18 | 1906 | |
e21fe3a5 | 1907 | void hisi_sas_free(struct hisi_hba *hisi_hba) |
89d53322 | 1908 | { |
11b75249 | 1909 | struct device *dev = hisi_hba->dev; |
a8d547bd | 1910 | int i, s, max_command_entries = hisi_hba->hw->max_command_entries; |
89d53322 JG |
1911 | |
1912 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
1913 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
1914 | if (hisi_hba->cmd_hdr[i]) | |
1915 | dma_free_coherent(dev, s, | |
1916 | hisi_hba->cmd_hdr[i], | |
1917 | hisi_hba->cmd_hdr_dma[i]); | |
1918 | ||
1919 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
1920 | if (hisi_hba->complete_hdr[i]) | |
1921 | dma_free_coherent(dev, s, | |
1922 | hisi_hba->complete_hdr[i], | |
1923 | hisi_hba->complete_hdr_dma[i]); | |
1924 | } | |
1925 | ||
f557e32c | 1926 | dma_pool_destroy(hisi_hba->buffer_pool); |
89d53322 JG |
1927 | |
1928 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
1929 | if (hisi_hba->itct) | |
1930 | dma_free_coherent(dev, s, | |
1931 | hisi_hba->itct, hisi_hba->itct_dma); | |
1932 | ||
a8d547bd | 1933 | s = max_command_entries * sizeof(struct hisi_sas_iost); |
89d53322 JG |
1934 | if (hisi_hba->iost) |
1935 | dma_free_coherent(dev, s, | |
1936 | hisi_hba->iost, hisi_hba->iost_dma); | |
1937 | ||
a8d547bd | 1938 | s = max_command_entries * sizeof(struct hisi_sas_breakpoint); |
89d53322 JG |
1939 | if (hisi_hba->breakpoint) |
1940 | dma_free_coherent(dev, s, | |
1941 | hisi_hba->breakpoint, | |
1942 | hisi_hba->breakpoint_dma); | |
1943 | ||
1944 | ||
1945 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; | |
1946 | if (hisi_hba->initial_fis) | |
1947 | dma_free_coherent(dev, s, | |
1948 | hisi_hba->initial_fis, | |
1949 | hisi_hba->initial_fis_dma); | |
1950 | ||
3297ded1 | 1951 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_sata_breakpoint); |
89d53322 JG |
1952 | if (hisi_hba->sata_breakpoint) |
1953 | dma_free_coherent(dev, s, | |
1954 | hisi_hba->sata_breakpoint, | |
1955 | hisi_hba->sata_breakpoint_dma); | |
1956 | ||
7e9080e1 JG |
1957 | if (hisi_hba->wq) |
1958 | destroy_workqueue(hisi_hba->wq); | |
89d53322 | 1959 | } |
e21fe3a5 | 1960 | EXPORT_SYMBOL_GPL(hisi_sas_free); |
6be6de18 | 1961 | |
b4241f0f | 1962 | void hisi_sas_rst_work_handler(struct work_struct *work) |
06ec0fb9 XC |
1963 | { |
1964 | struct hisi_hba *hisi_hba = | |
1965 | container_of(work, struct hisi_hba, rst_work); | |
1966 | ||
1967 | hisi_sas_controller_reset(hisi_hba); | |
1968 | } | |
b4241f0f | 1969 | EXPORT_SYMBOL_GPL(hisi_sas_rst_work_handler); |
06ec0fb9 | 1970 | |
e402acdb XT |
1971 | void hisi_sas_sync_rst_work_handler(struct work_struct *work) |
1972 | { | |
1973 | struct hisi_sas_rst *rst = | |
1974 | container_of(work, struct hisi_sas_rst, work); | |
1975 | ||
1976 | if (!hisi_sas_controller_reset(rst->hisi_hba)) | |
1977 | rst->done = true; | |
1978 | complete(rst->completion); | |
1979 | } | |
1980 | EXPORT_SYMBOL_GPL(hisi_sas_sync_rst_work_handler); | |
1981 | ||
0fa24c19 | 1982 | int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba) |
7eb7869f | 1983 | { |
0fa24c19 JG |
1984 | struct device *dev = hisi_hba->dev; |
1985 | struct platform_device *pdev = hisi_hba->platform_dev; | |
1986 | struct device_node *np = pdev ? pdev->dev.of_node : NULL; | |
3bc45af8 | 1987 | struct clk *refclk; |
7eb7869f | 1988 | |
4d558c77 | 1989 | if (device_property_read_u8_array(dev, "sas-addr", hisi_hba->sas_addr, |
0fa24c19 JG |
1990 | SAS_ADDR_SIZE)) { |
1991 | dev_err(dev, "could not get property sas-addr\n"); | |
1992 | return -ENOENT; | |
1993 | } | |
e26b2f40 | 1994 | |
4d558c77 | 1995 | if (np) { |
0fa24c19 JG |
1996 | /* |
1997 | * These properties are only required for platform device-based | |
1998 | * controller with DT firmware. | |
1999 | */ | |
4d558c77 JG |
2000 | hisi_hba->ctrl = syscon_regmap_lookup_by_phandle(np, |
2001 | "hisilicon,sas-syscon"); | |
0fa24c19 JG |
2002 | if (IS_ERR(hisi_hba->ctrl)) { |
2003 | dev_err(dev, "could not get syscon\n"); | |
2004 | return -ENOENT; | |
2005 | } | |
e26b2f40 | 2006 | |
4d558c77 | 2007 | if (device_property_read_u32(dev, "ctrl-reset-reg", |
0fa24c19 JG |
2008 | &hisi_hba->ctrl_reset_reg)) { |
2009 | dev_err(dev, | |
2010 | "could not get property ctrl-reset-reg\n"); | |
2011 | return -ENOENT; | |
2012 | } | |
e26b2f40 | 2013 | |
4d558c77 | 2014 | if (device_property_read_u32(dev, "ctrl-reset-sts-reg", |
0fa24c19 JG |
2015 | &hisi_hba->ctrl_reset_sts_reg)) { |
2016 | dev_err(dev, | |
2017 | "could not get property ctrl-reset-sts-reg\n"); | |
2018 | return -ENOENT; | |
2019 | } | |
e26b2f40 | 2020 | |
4d558c77 | 2021 | if (device_property_read_u32(dev, "ctrl-clock-ena-reg", |
0fa24c19 JG |
2022 | &hisi_hba->ctrl_clock_ena_reg)) { |
2023 | dev_err(dev, | |
2024 | "could not get property ctrl-clock-ena-reg\n"); | |
2025 | return -ENOENT; | |
2026 | } | |
4d558c77 JG |
2027 | } |
2028 | ||
0fa24c19 | 2029 | refclk = devm_clk_get(dev, NULL); |
3bc45af8 | 2030 | if (IS_ERR(refclk)) |
87e287c1 | 2031 | dev_dbg(dev, "no ref clk property\n"); |
3bc45af8 JG |
2032 | else |
2033 | hisi_hba->refclk_frequency_mhz = clk_get_rate(refclk) / 1000000; | |
2034 | ||
0fa24c19 JG |
2035 | if (device_property_read_u32(dev, "phy-count", &hisi_hba->n_phy)) { |
2036 | dev_err(dev, "could not get property phy-count\n"); | |
2037 | return -ENOENT; | |
2038 | } | |
e26b2f40 | 2039 | |
4d558c77 | 2040 | if (device_property_read_u32(dev, "queue-count", |
0fa24c19 JG |
2041 | &hisi_hba->queue_count)) { |
2042 | dev_err(dev, "could not get property queue-count\n"); | |
2043 | return -ENOENT; | |
2044 | } | |
2045 | ||
2046 | return 0; | |
2047 | } | |
2048 | EXPORT_SYMBOL_GPL(hisi_sas_get_fw_info); | |
2049 | ||
2050 | static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev, | |
2051 | const struct hisi_sas_hw *hw) | |
2052 | { | |
2053 | struct resource *res; | |
2054 | struct Scsi_Host *shost; | |
2055 | struct hisi_hba *hisi_hba; | |
2056 | struct device *dev = &pdev->dev; | |
2057 | ||
e21fe3a5 | 2058 | shost = scsi_host_alloc(hisi_sas_sht, sizeof(*hisi_hba)); |
0fa24c19 JG |
2059 | if (!shost) { |
2060 | dev_err(dev, "scsi host alloc failed\n"); | |
2061 | return NULL; | |
2062 | } | |
2063 | hisi_hba = shost_priv(shost); | |
2064 | ||
2065 | INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler); | |
2066 | hisi_hba->hw = hw; | |
2067 | hisi_hba->dev = dev; | |
2068 | hisi_hba->platform_dev = pdev; | |
2069 | hisi_hba->shost = shost; | |
2070 | SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; | |
2071 | ||
77570eed | 2072 | timer_setup(&hisi_hba->timer, NULL, 0); |
0fa24c19 JG |
2073 | |
2074 | if (hisi_sas_get_fw_info(hisi_hba) < 0) | |
e26b2f40 JG |
2075 | goto err_out; |
2076 | ||
a6f2c7ff JG |
2077 | if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) && |
2078 | dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) { | |
2079 | dev_err(dev, "No usable DMA addressing method\n"); | |
2080 | goto err_out; | |
2081 | } | |
2082 | ||
e26b2f40 JG |
2083 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
2084 | hisi_hba->regs = devm_ioremap_resource(dev, res); | |
2085 | if (IS_ERR(hisi_hba->regs)) | |
2086 | goto err_out; | |
2087 | ||
6379c560 XT |
2088 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
2089 | if (res) { | |
2090 | hisi_hba->sgpio_regs = devm_ioremap_resource(dev, res); | |
2091 | if (IS_ERR(hisi_hba->sgpio_regs)) | |
2092 | goto err_out; | |
2093 | } | |
2094 | ||
89d53322 JG |
2095 | if (hisi_sas_alloc(hisi_hba, shost)) { |
2096 | hisi_sas_free(hisi_hba); | |
6be6de18 | 2097 | goto err_out; |
89d53322 | 2098 | } |
6be6de18 | 2099 | |
7eb7869f JG |
2100 | return shost; |
2101 | err_out: | |
76aae5f6 | 2102 | scsi_host_put(shost); |
7eb7869f JG |
2103 | dev_err(dev, "shost alloc failed\n"); |
2104 | return NULL; | |
2105 | } | |
2106 | ||
2107 | int hisi_sas_probe(struct platform_device *pdev, | |
2108 | const struct hisi_sas_hw *hw) | |
2109 | { | |
2110 | struct Scsi_Host *shost; | |
2111 | struct hisi_hba *hisi_hba; | |
2112 | struct device *dev = &pdev->dev; | |
2113 | struct asd_sas_phy **arr_phy; | |
2114 | struct asd_sas_port **arr_port; | |
2115 | struct sas_ha_struct *sha; | |
2116 | int rc, phy_nr, port_nr, i; | |
2117 | ||
2118 | shost = hisi_sas_shost_alloc(pdev, hw); | |
d37a0082 XT |
2119 | if (!shost) |
2120 | return -ENOMEM; | |
7eb7869f JG |
2121 | |
2122 | sha = SHOST_TO_SAS_HA(shost); | |
2123 | hisi_hba = shost_priv(shost); | |
2124 | platform_set_drvdata(pdev, sha); | |
50cb916f | 2125 | |
7eb7869f JG |
2126 | phy_nr = port_nr = hisi_hba->n_phy; |
2127 | ||
2128 | arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); | |
2129 | arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); | |
d37a0082 XT |
2130 | if (!arr_phy || !arr_port) { |
2131 | rc = -ENOMEM; | |
2132 | goto err_out_ha; | |
2133 | } | |
7eb7869f JG |
2134 | |
2135 | sha->sas_phy = arr_phy; | |
2136 | sha->sas_port = arr_port; | |
7eb7869f JG |
2137 | sha->lldd_ha = hisi_hba; |
2138 | ||
2139 | shost->transportt = hisi_sas_stt; | |
2140 | shost->max_id = HISI_SAS_MAX_DEVICES; | |
2141 | shost->max_lun = ~0; | |
2142 | shost->max_channel = 1; | |
2143 | shost->max_cmd_len = 16; | |
2144 | shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT); | |
a8d547bd JG |
2145 | shost->can_queue = hisi_hba->hw->max_command_entries; |
2146 | shost->cmd_per_lun = hisi_hba->hw->max_command_entries; | |
7eb7869f JG |
2147 | |
2148 | sha->sas_ha_name = DRV_NAME; | |
11b75249 | 2149 | sha->dev = hisi_hba->dev; |
7eb7869f JG |
2150 | sha->lldd_module = THIS_MODULE; |
2151 | sha->sas_addr = &hisi_hba->sas_addr[0]; | |
2152 | sha->num_phys = hisi_hba->n_phy; | |
2153 | sha->core.shost = hisi_hba->shost; | |
2154 | ||
2155 | for (i = 0; i < hisi_hba->n_phy; i++) { | |
2156 | sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; | |
2157 | sha->sas_port[i] = &hisi_hba->port[i].sas_port; | |
2158 | } | |
2159 | ||
2160 | rc = scsi_add_host(shost, &pdev->dev); | |
2161 | if (rc) | |
2162 | goto err_out_ha; | |
2163 | ||
2164 | rc = sas_register_ha(sha); | |
2165 | if (rc) | |
2166 | goto err_out_register_ha; | |
2167 | ||
0757f041 XC |
2168 | rc = hisi_hba->hw->hw_init(hisi_hba); |
2169 | if (rc) | |
2170 | goto err_out_register_ha; | |
2171 | ||
7eb7869f JG |
2172 | scsi_scan_host(shost); |
2173 | ||
2174 | return 0; | |
2175 | ||
2176 | err_out_register_ha: | |
2177 | scsi_remove_host(shost); | |
2178 | err_out_ha: | |
d37a0082 | 2179 | hisi_sas_free(hisi_hba); |
76aae5f6 | 2180 | scsi_host_put(shost); |
7eb7869f JG |
2181 | return rc; |
2182 | } | |
2183 | EXPORT_SYMBOL_GPL(hisi_sas_probe); | |
2184 | ||
89d53322 JG |
2185 | int hisi_sas_remove(struct platform_device *pdev) |
2186 | { | |
2187 | struct sas_ha_struct *sha = platform_get_drvdata(pdev); | |
2188 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
d37a0082 | 2189 | struct Scsi_Host *shost = sha->core.shost; |
89d53322 | 2190 | |
5df41af4 XC |
2191 | if (timer_pending(&hisi_hba->timer)) |
2192 | del_timer(&hisi_hba->timer); | |
2193 | ||
89d53322 JG |
2194 | sas_unregister_ha(sha); |
2195 | sas_remove_host(sha->core.shost); | |
2196 | ||
2197 | hisi_sas_free(hisi_hba); | |
76aae5f6 | 2198 | scsi_host_put(shost); |
89d53322 JG |
2199 | return 0; |
2200 | } | |
2201 | EXPORT_SYMBOL_GPL(hisi_sas_remove); | |
2202 | ||
e8899fad JG |
2203 | static __init int hisi_sas_init(void) |
2204 | { | |
e8899fad JG |
2205 | hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); |
2206 | if (!hisi_sas_stt) | |
2207 | return -ENOMEM; | |
2208 | ||
2209 | return 0; | |
2210 | } | |
2211 | ||
2212 | static __exit void hisi_sas_exit(void) | |
2213 | { | |
2214 | sas_release_transport(hisi_sas_stt); | |
2215 | } | |
2216 | ||
2217 | module_init(hisi_sas_init); | |
2218 | module_exit(hisi_sas_exit); | |
2219 | ||
e8899fad JG |
2220 | MODULE_LICENSE("GPL"); |
2221 | MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); | |
2222 | MODULE_DESCRIPTION("HISILICON SAS controller driver"); | |
2223 | MODULE_ALIAS("platform:" DRV_NAME); |