]>
Commit | Line | Data |
---|---|---|
e8899fad JG |
1 | /* |
2 | * Copyright (c) 2015 Linaro Ltd. | |
3 | * Copyright (c) 2015 Hisilicon Limited. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | */ | |
11 | ||
12 | #include "hisi_sas.h" | |
13 | #define DRV_NAME "hisi_sas" | |
14 | ||
abda97c2 JG |
15 | #define DEV_IS_EXPANDER(type) \ |
16 | ((type == SAS_EDGE_EXPANDER_DEVICE) || \ | |
17 | (type == SAS_FANOUT_EXPANDER_DEVICE)) | |
42e7a693 JG |
18 | |
19 | #define DEV_IS_GONE(dev) \ | |
20 | ((!dev) || (dev->dev_type == SAS_PHY_UNUSED)) | |
21 | ||
22 | static struct hisi_hba *dev_to_hisi_hba(struct domain_device *device) | |
23 | { | |
24 | return device->port->ha->lldd_ha; | |
25 | } | |
26 | ||
257efd1f JG |
27 | static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) |
28 | { | |
29 | void *bitmap = hisi_hba->slot_index_tags; | |
30 | ||
31 | clear_bit(slot_idx, bitmap); | |
32 | } | |
33 | ||
42e7a693 JG |
34 | static void hisi_sas_slot_index_free(struct hisi_hba *hisi_hba, int slot_idx) |
35 | { | |
36 | hisi_sas_slot_index_clear(hisi_hba, slot_idx); | |
37 | } | |
38 | ||
39 | static void hisi_sas_slot_index_set(struct hisi_hba *hisi_hba, int slot_idx) | |
40 | { | |
41 | void *bitmap = hisi_hba->slot_index_tags; | |
42 | ||
43 | set_bit(slot_idx, bitmap); | |
44 | } | |
45 | ||
46 | static int hisi_sas_slot_index_alloc(struct hisi_hba *hisi_hba, int *slot_idx) | |
47 | { | |
48 | unsigned int index; | |
49 | void *bitmap = hisi_hba->slot_index_tags; | |
50 | ||
51 | index = find_first_zero_bit(bitmap, hisi_hba->slot_index_count); | |
52 | if (index >= hisi_hba->slot_index_count) | |
53 | return -SAS_QUEUE_FULL; | |
54 | hisi_sas_slot_index_set(hisi_hba, index); | |
55 | *slot_idx = index; | |
56 | return 0; | |
57 | } | |
58 | ||
257efd1f JG |
59 | static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) |
60 | { | |
61 | int i; | |
62 | ||
63 | for (i = 0; i < hisi_hba->slot_index_count; ++i) | |
64 | hisi_sas_slot_index_clear(hisi_hba, i); | |
65 | } | |
27a3f229 JG |
66 | |
67 | void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, | |
68 | struct hisi_sas_slot *slot) | |
69 | { | |
70 | struct device *dev = &hisi_hba->pdev->dev; | |
71 | ||
72 | if (!slot->task) | |
73 | return; | |
74 | ||
75 | if (!sas_protocol_ata(task->task_proto)) | |
76 | if (slot->n_elem) | |
77 | dma_unmap_sg(dev, task->scatter, slot->n_elem, | |
78 | task->data_dir); | |
79 | ||
80 | if (slot->command_table) | |
81 | dma_pool_free(hisi_hba->command_table_pool, | |
82 | slot->command_table, slot->command_table_dma); | |
83 | ||
84 | if (slot->status_buffer) | |
85 | dma_pool_free(hisi_hba->status_buffer_pool, | |
86 | slot->status_buffer, slot->status_buffer_dma); | |
87 | ||
88 | if (slot->sge_page) | |
89 | dma_pool_free(hisi_hba->sge_page_pool, slot->sge_page, | |
90 | slot->sge_page_dma); | |
91 | ||
92 | list_del_init(&slot->entry); | |
93 | task->lldd_task = NULL; | |
94 | slot->task = NULL; | |
95 | slot->port = NULL; | |
96 | hisi_sas_slot_index_free(hisi_hba, slot->idx); | |
97 | memset(slot, 0, sizeof(*slot)); | |
98 | } | |
99 | EXPORT_SYMBOL_GPL(hisi_sas_slot_task_free); | |
100 | ||
66ee999b JG |
101 | static int hisi_sas_task_prep_smp(struct hisi_hba *hisi_hba, |
102 | struct hisi_sas_slot *slot) | |
103 | { | |
104 | return hisi_hba->hw->prep_smp(hisi_hba, slot); | |
105 | } | |
106 | ||
42e7a693 JG |
107 | static int hisi_sas_task_prep_ssp(struct hisi_hba *hisi_hba, |
108 | struct hisi_sas_slot *slot, int is_tmf, | |
109 | struct hisi_sas_tmf_task *tmf) | |
110 | { | |
111 | return hisi_hba->hw->prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
112 | } | |
113 | ||
114 | static int hisi_sas_task_prep(struct sas_task *task, struct hisi_hba *hisi_hba, | |
115 | int is_tmf, struct hisi_sas_tmf_task *tmf, | |
116 | int *pass) | |
117 | { | |
118 | struct domain_device *device = task->dev; | |
119 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
120 | struct hisi_sas_port *port; | |
121 | struct hisi_sas_slot *slot; | |
122 | struct hisi_sas_cmd_hdr *cmd_hdr_base; | |
123 | struct device *dev = &hisi_hba->pdev->dev; | |
124 | int dlvry_queue_slot, dlvry_queue, n_elem = 0, rc, slot_idx; | |
125 | ||
126 | if (!device->port) { | |
127 | struct task_status_struct *ts = &task->task_status; | |
128 | ||
129 | ts->resp = SAS_TASK_UNDELIVERED; | |
130 | ts->stat = SAS_PHY_DOWN; | |
131 | /* | |
132 | * libsas will use dev->port, should | |
133 | * not call task_done for sata | |
134 | */ | |
135 | if (device->dev_type != SAS_SATA_DEV) | |
136 | task->task_done(task); | |
137 | return 0; | |
138 | } | |
139 | ||
140 | if (DEV_IS_GONE(sas_dev)) { | |
141 | if (sas_dev) | |
142 | dev_info(dev, "task prep: device %llu not ready\n", | |
143 | sas_dev->device_id); | |
144 | else | |
145 | dev_info(dev, "task prep: device %016llx not ready\n", | |
146 | SAS_ADDR(device->sas_addr)); | |
147 | ||
148 | rc = SAS_PHY_DOWN; | |
149 | return rc; | |
150 | } | |
151 | port = device->port->lldd_port; | |
152 | if (port && !port->port_attached && !tmf) { | |
153 | if (sas_protocol_ata(task->task_proto)) { | |
154 | struct task_status_struct *ts = &task->task_status; | |
155 | ||
156 | dev_info(dev, | |
157 | "task prep: SATA/STP port%d not attach device\n", | |
158 | device->port->id); | |
159 | ts->resp = SAS_TASK_COMPLETE; | |
160 | ts->stat = SAS_PHY_DOWN; | |
161 | task->task_done(task); | |
162 | } else { | |
163 | struct task_status_struct *ts = &task->task_status; | |
164 | ||
165 | dev_info(dev, | |
166 | "task prep: SAS port%d does not attach device\n", | |
167 | device->port->id); | |
168 | ts->resp = SAS_TASK_UNDELIVERED; | |
169 | ts->stat = SAS_PHY_DOWN; | |
170 | task->task_done(task); | |
171 | } | |
172 | return 0; | |
173 | } | |
174 | ||
175 | if (!sas_protocol_ata(task->task_proto)) { | |
176 | if (task->num_scatter) { | |
177 | n_elem = dma_map_sg(dev, task->scatter, | |
178 | task->num_scatter, task->data_dir); | |
179 | if (!n_elem) { | |
180 | rc = -ENOMEM; | |
181 | goto prep_out; | |
182 | } | |
183 | } | |
184 | } else | |
185 | n_elem = task->num_scatter; | |
186 | ||
187 | rc = hisi_sas_slot_index_alloc(hisi_hba, &slot_idx); | |
188 | if (rc) | |
189 | goto err_out; | |
190 | rc = hisi_hba->hw->get_free_slot(hisi_hba, &dlvry_queue, | |
191 | &dlvry_queue_slot); | |
192 | if (rc) | |
193 | goto err_out_tag; | |
194 | ||
195 | slot = &hisi_hba->slot_info[slot_idx]; | |
196 | memset(slot, 0, sizeof(struct hisi_sas_slot)); | |
197 | ||
198 | slot->idx = slot_idx; | |
199 | slot->n_elem = n_elem; | |
200 | slot->dlvry_queue = dlvry_queue; | |
201 | slot->dlvry_queue_slot = dlvry_queue_slot; | |
202 | cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; | |
203 | slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; | |
204 | slot->task = task; | |
205 | slot->port = port; | |
206 | task->lldd_task = slot; | |
207 | ||
208 | slot->status_buffer = dma_pool_alloc(hisi_hba->status_buffer_pool, | |
209 | GFP_ATOMIC, | |
210 | &slot->status_buffer_dma); | |
211 | if (!slot->status_buffer) | |
212 | goto err_out_slot_buf; | |
213 | memset(slot->status_buffer, 0, HISI_SAS_STATUS_BUF_SZ); | |
214 | ||
215 | slot->command_table = dma_pool_alloc(hisi_hba->command_table_pool, | |
216 | GFP_ATOMIC, | |
217 | &slot->command_table_dma); | |
218 | if (!slot->command_table) | |
219 | goto err_out_status_buf; | |
220 | memset(slot->command_table, 0, HISI_SAS_COMMAND_TABLE_SZ); | |
221 | memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); | |
222 | ||
223 | switch (task->task_proto) { | |
66ee999b JG |
224 | case SAS_PROTOCOL_SMP: |
225 | rc = hisi_sas_task_prep_smp(hisi_hba, slot); | |
226 | break; | |
42e7a693 JG |
227 | case SAS_PROTOCOL_SSP: |
228 | rc = hisi_sas_task_prep_ssp(hisi_hba, slot, is_tmf, tmf); | |
229 | break; | |
230 | case SAS_PROTOCOL_SATA: | |
231 | case SAS_PROTOCOL_STP: | |
232 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
233 | default: | |
234 | dev_err(dev, "task prep: unknown/unsupported proto (0x%x)\n", | |
235 | task->task_proto); | |
236 | rc = -EINVAL; | |
237 | break; | |
238 | } | |
239 | ||
240 | if (rc) { | |
241 | dev_err(dev, "task prep: rc = 0x%x\n", rc); | |
242 | if (slot->sge_page) | |
243 | goto err_out_sge; | |
244 | goto err_out_command_table; | |
245 | } | |
246 | ||
247 | list_add_tail(&slot->entry, &port->list); | |
248 | spin_lock(&task->task_state_lock); | |
249 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; | |
250 | spin_unlock(&task->task_state_lock); | |
251 | ||
252 | hisi_hba->slot_prep = slot; | |
253 | ||
254 | sas_dev->running_req++; | |
255 | ++(*pass); | |
256 | ||
257 | return rc; | |
258 | ||
259 | err_out_sge: | |
260 | dma_pool_free(hisi_hba->sge_page_pool, slot->sge_page, | |
261 | slot->sge_page_dma); | |
262 | err_out_command_table: | |
263 | dma_pool_free(hisi_hba->command_table_pool, slot->command_table, | |
264 | slot->command_table_dma); | |
265 | err_out_status_buf: | |
266 | dma_pool_free(hisi_hba->status_buffer_pool, slot->status_buffer, | |
267 | slot->status_buffer_dma); | |
268 | err_out_slot_buf: | |
269 | /* Nothing to be done */ | |
270 | err_out_tag: | |
271 | hisi_sas_slot_index_free(hisi_hba, slot_idx); | |
272 | err_out: | |
273 | dev_err(dev, "task prep: failed[%d]!\n", rc); | |
274 | if (!sas_protocol_ata(task->task_proto)) | |
275 | if (n_elem) | |
276 | dma_unmap_sg(dev, task->scatter, n_elem, | |
277 | task->data_dir); | |
278 | prep_out: | |
279 | return rc; | |
280 | } | |
281 | ||
282 | static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, | |
283 | int is_tmf, struct hisi_sas_tmf_task *tmf) | |
284 | { | |
285 | u32 rc; | |
286 | u32 pass = 0; | |
287 | unsigned long flags; | |
288 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(task->dev); | |
289 | struct device *dev = &hisi_hba->pdev->dev; | |
290 | ||
291 | /* protect task_prep and start_delivery sequence */ | |
292 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
293 | rc = hisi_sas_task_prep(task, hisi_hba, is_tmf, tmf, &pass); | |
294 | if (rc) | |
295 | dev_err(dev, "task exec: failed[%d]!\n", rc); | |
296 | ||
297 | if (likely(pass)) | |
298 | hisi_hba->hw->start_delivery(hisi_hba); | |
299 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
300 | ||
301 | return rc; | |
302 | } | |
257efd1f | 303 | |
66139921 JG |
304 | static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no) |
305 | { | |
306 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
307 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
308 | struct sas_ha_struct *sas_ha; | |
309 | ||
310 | if (!phy->phy_attached) | |
311 | return; | |
312 | ||
313 | sas_ha = &hisi_hba->sha; | |
314 | sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); | |
315 | ||
316 | if (sas_phy->phy) { | |
317 | struct sas_phy *sphy = sas_phy->phy; | |
318 | ||
319 | sphy->negotiated_linkrate = sas_phy->linkrate; | |
320 | sphy->minimum_linkrate = phy->minimum_linkrate; | |
321 | sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; | |
322 | sphy->maximum_linkrate = phy->maximum_linkrate; | |
323 | } | |
324 | ||
325 | if (phy->phy_type & PORT_TYPE_SAS) { | |
326 | struct sas_identify_frame *id; | |
327 | ||
328 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
329 | id->dev_type = phy->identify.device_type; | |
330 | id->initiator_bits = SAS_PROTOCOL_ALL; | |
331 | id->target_bits = phy->identify.target_port_protocols; | |
332 | } else if (phy->phy_type & PORT_TYPE_SATA) { | |
333 | /*Nothing*/ | |
334 | } | |
335 | ||
336 | sas_phy->frame_rcvd_size = phy->frame_rcvd_size; | |
337 | sas_ha->notify_port_event(sas_phy, PORTE_BYTES_DMAED); | |
338 | } | |
339 | ||
abda97c2 JG |
340 | static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) |
341 | { | |
342 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
343 | struct hisi_sas_device *sas_dev = NULL; | |
344 | int i; | |
345 | ||
346 | spin_lock(&hisi_hba->lock); | |
347 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { | |
348 | if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) { | |
349 | hisi_hba->devices[i].device_id = i; | |
350 | sas_dev = &hisi_hba->devices[i]; | |
351 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
352 | sas_dev->dev_type = device->dev_type; | |
353 | sas_dev->hisi_hba = hisi_hba; | |
354 | sas_dev->sas_device = device; | |
355 | break; | |
356 | } | |
357 | } | |
358 | spin_unlock(&hisi_hba->lock); | |
359 | ||
360 | return sas_dev; | |
361 | } | |
362 | ||
363 | static int hisi_sas_dev_found(struct domain_device *device) | |
364 | { | |
365 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
366 | struct domain_device *parent_dev = device->parent; | |
367 | struct hisi_sas_device *sas_dev; | |
368 | struct device *dev = &hisi_hba->pdev->dev; | |
369 | ||
370 | sas_dev = hisi_sas_alloc_dev(device); | |
371 | if (!sas_dev) { | |
372 | dev_err(dev, "fail alloc dev: max support %d devices\n", | |
373 | HISI_SAS_MAX_DEVICES); | |
374 | return -EINVAL; | |
375 | } | |
376 | ||
377 | device->lldd_dev = sas_dev; | |
378 | hisi_hba->hw->setup_itct(hisi_hba, sas_dev); | |
379 | ||
380 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { | |
381 | int phy_no; | |
382 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
383 | struct ex_phy *phy; | |
384 | ||
385 | for (phy_no = 0; phy_no < phy_num; phy_no++) { | |
386 | phy = &parent_dev->ex_dev.ex_phy[phy_no]; | |
387 | if (SAS_ADDR(phy->attached_sas_addr) == | |
388 | SAS_ADDR(device->sas_addr)) { | |
389 | sas_dev->attached_phy = phy_no; | |
390 | break; | |
391 | } | |
392 | } | |
393 | ||
394 | if (phy_no == phy_num) { | |
395 | dev_info(dev, "dev found: no attached " | |
396 | "dev:%016llx at ex:%016llx\n", | |
397 | SAS_ADDR(device->sas_addr), | |
398 | SAS_ADDR(parent_dev->sas_addr)); | |
399 | return -EINVAL; | |
400 | } | |
401 | } | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
701f75ec JG |
406 | static void hisi_sas_scan_start(struct Scsi_Host *shost) |
407 | { | |
408 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
409 | int i; | |
410 | ||
411 | for (i = 0; i < hisi_hba->n_phy; ++i) | |
412 | hisi_sas_bytes_dmaed(hisi_hba, i); | |
413 | ||
414 | hisi_hba->scan_finished = 1; | |
415 | } | |
416 | ||
417 | static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time) | |
418 | { | |
419 | struct hisi_hba *hisi_hba = shost_priv(shost); | |
420 | struct sas_ha_struct *sha = &hisi_hba->sha; | |
421 | ||
422 | if (hisi_hba->scan_finished == 0) | |
423 | return 0; | |
424 | ||
425 | sas_drain_work(sha); | |
426 | return 1; | |
427 | } | |
428 | ||
66139921 JG |
429 | static void hisi_sas_phyup_work(struct work_struct *work) |
430 | { | |
431 | struct hisi_sas_phy *phy = | |
432 | container_of(work, struct hisi_sas_phy, phyup_ws); | |
433 | struct hisi_hba *hisi_hba = phy->hisi_hba; | |
434 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
435 | int phy_no = sas_phy->id; | |
436 | ||
437 | hisi_hba->hw->sl_notify(hisi_hba, phy_no); /* This requires a sleep */ | |
438 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
439 | } | |
976867e6 JG |
440 | |
441 | static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no) | |
442 | { | |
443 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
444 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
445 | ||
446 | phy->hisi_hba = hisi_hba; | |
447 | phy->port = NULL; | |
448 | init_timer(&phy->timer); | |
449 | sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0; | |
450 | sas_phy->class = SAS; | |
451 | sas_phy->iproto = SAS_PROTOCOL_ALL; | |
452 | sas_phy->tproto = 0; | |
453 | sas_phy->type = PHY_TYPE_PHYSICAL; | |
454 | sas_phy->role = PHY_ROLE_INITIATOR; | |
455 | sas_phy->oob_mode = OOB_NOT_CONNECTED; | |
456 | sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; | |
457 | sas_phy->id = phy_no; | |
458 | sas_phy->sas_addr = &hisi_hba->sas_addr[0]; | |
459 | sas_phy->frame_rcvd = &phy->frame_rcvd[0]; | |
460 | sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata; | |
461 | sas_phy->lldd_phy = phy; | |
66139921 JG |
462 | |
463 | INIT_WORK(&phy->phyup_ws, hisi_sas_phyup_work); | |
976867e6 JG |
464 | } |
465 | ||
184a4635 JG |
466 | static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy) |
467 | { | |
468 | struct sas_ha_struct *sas_ha = sas_phy->ha; | |
469 | struct hisi_hba *hisi_hba = sas_ha->lldd_ha; | |
470 | struct hisi_sas_phy *phy = sas_phy->lldd_phy; | |
471 | struct asd_sas_port *sas_port = sas_phy->port; | |
472 | struct hisi_sas_port *port = &hisi_hba->port[sas_phy->id]; | |
473 | unsigned long flags; | |
474 | ||
475 | if (!sas_port) | |
476 | return; | |
477 | ||
478 | spin_lock_irqsave(&hisi_hba->lock, flags); | |
479 | port->port_attached = 1; | |
480 | port->id = phy->port_id; | |
481 | phy->port = port; | |
482 | sas_port->lldd_port = port; | |
483 | spin_unlock_irqrestore(&hisi_hba->lock, flags); | |
484 | } | |
485 | ||
486 | static void hisi_sas_do_release_task(struct hisi_hba *hisi_hba, int phy_no, | |
487 | struct domain_device *device) | |
488 | { | |
489 | struct hisi_sas_phy *phy; | |
490 | struct hisi_sas_port *port; | |
491 | struct hisi_sas_slot *slot, *slot2; | |
492 | struct device *dev = &hisi_hba->pdev->dev; | |
493 | ||
494 | phy = &hisi_hba->phy[phy_no]; | |
495 | port = phy->port; | |
496 | if (!port) | |
497 | return; | |
498 | ||
499 | list_for_each_entry_safe(slot, slot2, &port->list, entry) { | |
500 | struct sas_task *task; | |
501 | ||
502 | task = slot->task; | |
503 | if (device && task->dev != device) | |
504 | continue; | |
505 | ||
506 | dev_info(dev, "Release slot [%d:%d], task [%p]:\n", | |
507 | slot->dlvry_queue, slot->dlvry_queue_slot, task); | |
508 | hisi_hba->hw->slot_complete(hisi_hba, slot, 1); | |
509 | } | |
510 | } | |
511 | ||
512 | static void hisi_sas_port_notify_deformed(struct asd_sas_phy *sas_phy) | |
513 | { | |
514 | struct domain_device *device; | |
515 | struct hisi_sas_phy *phy = sas_phy->lldd_phy; | |
516 | struct asd_sas_port *sas_port = sas_phy->port; | |
517 | ||
518 | list_for_each_entry(device, &sas_port->dev_list, dev_list_node) | |
519 | hisi_sas_do_release_task(phy->hisi_hba, sas_phy->id, device); | |
520 | } | |
521 | ||
522 | static void hisi_sas_release_task(struct hisi_hba *hisi_hba, | |
523 | struct domain_device *device) | |
524 | { | |
525 | struct asd_sas_port *port = device->port; | |
526 | struct asd_sas_phy *sas_phy; | |
527 | ||
528 | list_for_each_entry(sas_phy, &port->phy_list, port_phy_el) | |
529 | hisi_sas_do_release_task(hisi_hba, sas_phy->id, device); | |
530 | } | |
531 | ||
abda97c2 JG |
532 | static void hisi_sas_dev_gone(struct domain_device *device) |
533 | { | |
534 | struct hisi_sas_device *sas_dev = device->lldd_dev; | |
535 | struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); | |
536 | struct device *dev = &hisi_hba->pdev->dev; | |
537 | u64 dev_id = sas_dev->device_id; | |
538 | ||
539 | dev_info(dev, "found dev[%lld:%x] is gone\n", | |
540 | sas_dev->device_id, sas_dev->dev_type); | |
541 | ||
542 | hisi_hba->hw->free_device(hisi_hba, sas_dev); | |
543 | device->lldd_dev = NULL; | |
544 | memset(sas_dev, 0, sizeof(*sas_dev)); | |
545 | sas_dev->device_id = dev_id; | |
546 | sas_dev->dev_type = SAS_PHY_UNUSED; | |
547 | sas_dev->dev_status = HISI_SAS_DEV_NORMAL; | |
548 | } | |
42e7a693 JG |
549 | |
550 | static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) | |
551 | { | |
552 | return hisi_sas_task_exec(task, gfp_flags, 0, NULL); | |
553 | } | |
554 | ||
184a4635 JG |
555 | |
556 | static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy) | |
557 | { | |
558 | hisi_sas_port_notify_formed(sas_phy); | |
559 | } | |
560 | ||
561 | static void hisi_sas_port_deformed(struct asd_sas_phy *sas_phy) | |
562 | { | |
563 | hisi_sas_port_notify_deformed(sas_phy); | |
564 | } | |
565 | ||
566 | static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy) | |
567 | { | |
568 | phy->phy_attached = 0; | |
569 | phy->phy_type = 0; | |
570 | phy->port = NULL; | |
571 | } | |
572 | ||
573 | void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) | |
574 | { | |
575 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; | |
576 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
577 | struct sas_ha_struct *sas_ha = &hisi_hba->sha; | |
578 | ||
579 | if (rdy) { | |
580 | /* Phy down but ready */ | |
581 | hisi_sas_bytes_dmaed(hisi_hba, phy_no); | |
582 | hisi_sas_port_notify_formed(sas_phy); | |
583 | } else { | |
584 | struct hisi_sas_port *port = phy->port; | |
585 | ||
586 | /* Phy down and not ready */ | |
587 | sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL); | |
588 | sas_phy_disconnected(sas_phy); | |
589 | ||
590 | if (port) { | |
591 | if (phy->phy_type & PORT_TYPE_SAS) { | |
592 | int port_id = port->id; | |
593 | ||
594 | if (!hisi_hba->hw->get_wideport_bitmap(hisi_hba, | |
595 | port_id)) | |
596 | port->port_attached = 0; | |
597 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
598 | port->port_attached = 0; | |
599 | } | |
600 | hisi_sas_phy_disconnected(phy); | |
601 | } | |
602 | } | |
603 | EXPORT_SYMBOL_GPL(hisi_sas_phy_down); | |
604 | ||
e8899fad JG |
605 | static struct scsi_transport_template *hisi_sas_stt; |
606 | ||
7eb7869f JG |
607 | static struct scsi_host_template hisi_sas_sht = { |
608 | .module = THIS_MODULE, | |
609 | .name = DRV_NAME, | |
610 | .queuecommand = sas_queuecommand, | |
611 | .target_alloc = sas_target_alloc, | |
612 | .slave_configure = sas_slave_configure, | |
701f75ec JG |
613 | .scan_finished = hisi_sas_scan_finished, |
614 | .scan_start = hisi_sas_scan_start, | |
7eb7869f JG |
615 | .change_queue_depth = sas_change_queue_depth, |
616 | .bios_param = sas_bios_param, | |
617 | .can_queue = 1, | |
618 | .this_id = -1, | |
619 | .sg_tablesize = SG_ALL, | |
620 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, | |
621 | .use_clustering = ENABLE_CLUSTERING, | |
622 | .eh_device_reset_handler = sas_eh_device_reset_handler, | |
623 | .eh_bus_reset_handler = sas_eh_bus_reset_handler, | |
624 | .target_destroy = sas_target_destroy, | |
625 | .ioctl = sas_ioctl, | |
626 | }; | |
627 | ||
e8899fad | 628 | static struct sas_domain_function_template hisi_sas_transport_ops = { |
abda97c2 JG |
629 | .lldd_dev_found = hisi_sas_dev_found, |
630 | .lldd_dev_gone = hisi_sas_dev_gone, | |
42e7a693 | 631 | .lldd_execute_task = hisi_sas_queue_command, |
184a4635 JG |
632 | .lldd_port_formed = hisi_sas_port_formed, |
633 | .lldd_port_deformed = hisi_sas_port_deformed, | |
e8899fad JG |
634 | }; |
635 | ||
6be6de18 JG |
636 | static int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost) |
637 | { | |
638 | int i, s; | |
639 | struct platform_device *pdev = hisi_hba->pdev; | |
640 | struct device *dev = &pdev->dev; | |
641 | ||
fa42d80d | 642 | spin_lock_init(&hisi_hba->lock); |
976867e6 JG |
643 | for (i = 0; i < hisi_hba->n_phy; i++) { |
644 | hisi_sas_phy_init(hisi_hba, i); | |
645 | hisi_hba->port[i].port_attached = 0; | |
646 | hisi_hba->port[i].id = -1; | |
647 | INIT_LIST_HEAD(&hisi_hba->port[i].list); | |
648 | } | |
649 | ||
af740dbe JG |
650 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
651 | hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED; | |
652 | hisi_hba->devices[i].device_id = i; | |
653 | hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL; | |
654 | } | |
655 | ||
6be6de18 | 656 | for (i = 0; i < hisi_hba->queue_count; i++) { |
9101a079 JG |
657 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
658 | ||
659 | /* Completion queue structure */ | |
660 | cq->id = i; | |
661 | cq->hisi_hba = hisi_hba; | |
662 | ||
6be6de18 JG |
663 | /* Delivery queue */ |
664 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
665 | hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s, | |
666 | &hisi_hba->cmd_hdr_dma[i], GFP_KERNEL); | |
667 | if (!hisi_hba->cmd_hdr[i]) | |
668 | goto err_out; | |
669 | memset(hisi_hba->cmd_hdr[i], 0, s); | |
670 | ||
671 | /* Completion queue */ | |
672 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
673 | hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s, | |
674 | &hisi_hba->complete_hdr_dma[i], GFP_KERNEL); | |
675 | if (!hisi_hba->complete_hdr[i]) | |
676 | goto err_out; | |
677 | memset(hisi_hba->complete_hdr[i], 0, s); | |
678 | } | |
679 | ||
680 | s = HISI_SAS_STATUS_BUF_SZ; | |
681 | hisi_hba->status_buffer_pool = dma_pool_create("status_buffer", | |
682 | dev, s, 16, 0); | |
683 | if (!hisi_hba->status_buffer_pool) | |
684 | goto err_out; | |
685 | ||
686 | s = HISI_SAS_COMMAND_TABLE_SZ; | |
687 | hisi_hba->command_table_pool = dma_pool_create("command_table", | |
688 | dev, s, 16, 0); | |
689 | if (!hisi_hba->command_table_pool) | |
690 | goto err_out; | |
691 | ||
692 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
693 | hisi_hba->itct = dma_alloc_coherent(dev, s, &hisi_hba->itct_dma, | |
694 | GFP_KERNEL); | |
695 | if (!hisi_hba->itct) | |
696 | goto err_out; | |
697 | ||
698 | memset(hisi_hba->itct, 0, s); | |
699 | ||
700 | hisi_hba->slot_info = devm_kcalloc(dev, HISI_SAS_COMMAND_ENTRIES, | |
701 | sizeof(struct hisi_sas_slot), | |
702 | GFP_KERNEL); | |
703 | if (!hisi_hba->slot_info) | |
704 | goto err_out; | |
705 | ||
706 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_iost); | |
707 | hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma, | |
708 | GFP_KERNEL); | |
709 | if (!hisi_hba->iost) | |
710 | goto err_out; | |
711 | ||
712 | memset(hisi_hba->iost, 0, s); | |
713 | ||
714 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint); | |
715 | hisi_hba->breakpoint = dma_alloc_coherent(dev, s, | |
716 | &hisi_hba->breakpoint_dma, GFP_KERNEL); | |
717 | if (!hisi_hba->breakpoint) | |
718 | goto err_out; | |
719 | ||
720 | memset(hisi_hba->breakpoint, 0, s); | |
721 | ||
257efd1f JG |
722 | hisi_hba->slot_index_count = HISI_SAS_COMMAND_ENTRIES; |
723 | s = hisi_hba->slot_index_count / sizeof(unsigned long); | |
724 | hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL); | |
725 | if (!hisi_hba->slot_index_tags) | |
726 | goto err_out; | |
727 | ||
6be6de18 JG |
728 | hisi_hba->sge_page_pool = dma_pool_create("status_sge", dev, |
729 | sizeof(struct hisi_sas_sge_page), 16, 0); | |
730 | if (!hisi_hba->sge_page_pool) | |
731 | goto err_out; | |
732 | ||
733 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; | |
734 | hisi_hba->initial_fis = dma_alloc_coherent(dev, s, | |
735 | &hisi_hba->initial_fis_dma, GFP_KERNEL); | |
736 | if (!hisi_hba->initial_fis) | |
737 | goto err_out; | |
738 | memset(hisi_hba->initial_fis, 0, s); | |
739 | ||
740 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint) * 2; | |
741 | hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s, | |
742 | &hisi_hba->sata_breakpoint_dma, GFP_KERNEL); | |
743 | if (!hisi_hba->sata_breakpoint) | |
744 | goto err_out; | |
745 | memset(hisi_hba->sata_breakpoint, 0, s); | |
746 | ||
257efd1f JG |
747 | hisi_sas_slot_index_init(hisi_hba); |
748 | ||
7e9080e1 JG |
749 | hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); |
750 | if (!hisi_hba->wq) { | |
751 | dev_err(dev, "sas_alloc: failed to create workqueue\n"); | |
752 | goto err_out; | |
753 | } | |
754 | ||
6be6de18 JG |
755 | return 0; |
756 | err_out: | |
757 | return -ENOMEM; | |
758 | } | |
759 | ||
89d53322 JG |
760 | static void hisi_sas_free(struct hisi_hba *hisi_hba) |
761 | { | |
762 | struct device *dev = &hisi_hba->pdev->dev; | |
763 | int i, s; | |
764 | ||
765 | for (i = 0; i < hisi_hba->queue_count; i++) { | |
766 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; | |
767 | if (hisi_hba->cmd_hdr[i]) | |
768 | dma_free_coherent(dev, s, | |
769 | hisi_hba->cmd_hdr[i], | |
770 | hisi_hba->cmd_hdr_dma[i]); | |
771 | ||
772 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; | |
773 | if (hisi_hba->complete_hdr[i]) | |
774 | dma_free_coherent(dev, s, | |
775 | hisi_hba->complete_hdr[i], | |
776 | hisi_hba->complete_hdr_dma[i]); | |
777 | } | |
778 | ||
779 | dma_pool_destroy(hisi_hba->status_buffer_pool); | |
780 | dma_pool_destroy(hisi_hba->command_table_pool); | |
781 | dma_pool_destroy(hisi_hba->sge_page_pool); | |
782 | ||
783 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); | |
784 | if (hisi_hba->itct) | |
785 | dma_free_coherent(dev, s, | |
786 | hisi_hba->itct, hisi_hba->itct_dma); | |
787 | ||
788 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_iost); | |
789 | if (hisi_hba->iost) | |
790 | dma_free_coherent(dev, s, | |
791 | hisi_hba->iost, hisi_hba->iost_dma); | |
792 | ||
793 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint); | |
794 | if (hisi_hba->breakpoint) | |
795 | dma_free_coherent(dev, s, | |
796 | hisi_hba->breakpoint, | |
797 | hisi_hba->breakpoint_dma); | |
798 | ||
799 | ||
800 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; | |
801 | if (hisi_hba->initial_fis) | |
802 | dma_free_coherent(dev, s, | |
803 | hisi_hba->initial_fis, | |
804 | hisi_hba->initial_fis_dma); | |
805 | ||
806 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint) * 2; | |
807 | if (hisi_hba->sata_breakpoint) | |
808 | dma_free_coherent(dev, s, | |
809 | hisi_hba->sata_breakpoint, | |
810 | hisi_hba->sata_breakpoint_dma); | |
811 | ||
7e9080e1 JG |
812 | if (hisi_hba->wq) |
813 | destroy_workqueue(hisi_hba->wq); | |
89d53322 | 814 | } |
6be6de18 | 815 | |
7eb7869f JG |
816 | static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev, |
817 | const struct hisi_sas_hw *hw) | |
818 | { | |
e26b2f40 | 819 | struct resource *res; |
7eb7869f JG |
820 | struct Scsi_Host *shost; |
821 | struct hisi_hba *hisi_hba; | |
822 | struct device *dev = &pdev->dev; | |
e26b2f40 JG |
823 | struct device_node *np = pdev->dev.of_node; |
824 | struct property *sas_addr_prop; | |
825 | int num; | |
7eb7869f JG |
826 | |
827 | shost = scsi_host_alloc(&hisi_sas_sht, sizeof(*hisi_hba)); | |
828 | if (!shost) | |
829 | goto err_out; | |
830 | hisi_hba = shost_priv(shost); | |
831 | ||
832 | hisi_hba->hw = hw; | |
833 | hisi_hba->pdev = pdev; | |
834 | hisi_hba->shost = shost; | |
835 | SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; | |
836 | ||
fa42d80d JG |
837 | init_timer(&hisi_hba->timer); |
838 | ||
e26b2f40 JG |
839 | sas_addr_prop = of_find_property(np, "sas-addr", NULL); |
840 | if (!sas_addr_prop || (sas_addr_prop->length != SAS_ADDR_SIZE)) | |
841 | goto err_out; | |
842 | memcpy(hisi_hba->sas_addr, sas_addr_prop->value, SAS_ADDR_SIZE); | |
843 | ||
844 | if (of_property_read_u32(np, "ctrl-reset-reg", | |
845 | &hisi_hba->ctrl_reset_reg)) | |
846 | goto err_out; | |
847 | ||
848 | if (of_property_read_u32(np, "ctrl-reset-sts-reg", | |
849 | &hisi_hba->ctrl_reset_sts_reg)) | |
850 | goto err_out; | |
851 | ||
852 | if (of_property_read_u32(np, "ctrl-clock-ena-reg", | |
853 | &hisi_hba->ctrl_clock_ena_reg)) | |
854 | goto err_out; | |
855 | ||
856 | if (of_property_read_u32(np, "phy-count", &hisi_hba->n_phy)) | |
857 | goto err_out; | |
858 | ||
859 | if (of_property_read_u32(np, "queue-count", &hisi_hba->queue_count)) | |
860 | goto err_out; | |
861 | ||
862 | num = of_irq_count(np); | |
863 | hisi_hba->int_names = devm_kcalloc(dev, num, | |
864 | HISI_SAS_NAME_LEN, | |
865 | GFP_KERNEL); | |
866 | if (!hisi_hba->int_names) | |
867 | goto err_out; | |
868 | ||
869 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
870 | hisi_hba->regs = devm_ioremap_resource(dev, res); | |
871 | if (IS_ERR(hisi_hba->regs)) | |
872 | goto err_out; | |
873 | ||
874 | hisi_hba->ctrl = syscon_regmap_lookup_by_phandle( | |
875 | np, "hisilicon,sas-syscon"); | |
876 | if (IS_ERR(hisi_hba->ctrl)) | |
877 | goto err_out; | |
878 | ||
89d53322 JG |
879 | if (hisi_sas_alloc(hisi_hba, shost)) { |
880 | hisi_sas_free(hisi_hba); | |
6be6de18 | 881 | goto err_out; |
89d53322 | 882 | } |
6be6de18 | 883 | |
7eb7869f JG |
884 | return shost; |
885 | err_out: | |
886 | dev_err(dev, "shost alloc failed\n"); | |
887 | return NULL; | |
888 | } | |
889 | ||
5d74242e JG |
890 | static void hisi_sas_init_add(struct hisi_hba *hisi_hba) |
891 | { | |
892 | int i; | |
893 | ||
894 | for (i = 0; i < hisi_hba->n_phy; i++) | |
895 | memcpy(&hisi_hba->phy[i].dev_sas_addr, | |
896 | hisi_hba->sas_addr, | |
897 | SAS_ADDR_SIZE); | |
898 | } | |
899 | ||
7eb7869f JG |
900 | int hisi_sas_probe(struct platform_device *pdev, |
901 | const struct hisi_sas_hw *hw) | |
902 | { | |
903 | struct Scsi_Host *shost; | |
904 | struct hisi_hba *hisi_hba; | |
905 | struct device *dev = &pdev->dev; | |
906 | struct asd_sas_phy **arr_phy; | |
907 | struct asd_sas_port **arr_port; | |
908 | struct sas_ha_struct *sha; | |
909 | int rc, phy_nr, port_nr, i; | |
910 | ||
911 | shost = hisi_sas_shost_alloc(pdev, hw); | |
912 | if (!shost) { | |
913 | rc = -ENOMEM; | |
914 | goto err_out_ha; | |
915 | } | |
916 | ||
917 | sha = SHOST_TO_SAS_HA(shost); | |
918 | hisi_hba = shost_priv(shost); | |
919 | platform_set_drvdata(pdev, sha); | |
50cb916f JG |
920 | |
921 | if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) && | |
922 | dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) { | |
923 | dev_err(dev, "No usable DMA addressing method\n"); | |
924 | rc = -EIO; | |
925 | goto err_out_ha; | |
926 | } | |
927 | ||
7eb7869f JG |
928 | phy_nr = port_nr = hisi_hba->n_phy; |
929 | ||
930 | arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); | |
931 | arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); | |
932 | if (!arr_phy || !arr_port) | |
933 | return -ENOMEM; | |
934 | ||
935 | sha->sas_phy = arr_phy; | |
936 | sha->sas_port = arr_port; | |
937 | sha->core.shost = shost; | |
938 | sha->lldd_ha = hisi_hba; | |
939 | ||
940 | shost->transportt = hisi_sas_stt; | |
941 | shost->max_id = HISI_SAS_MAX_DEVICES; | |
942 | shost->max_lun = ~0; | |
943 | shost->max_channel = 1; | |
944 | shost->max_cmd_len = 16; | |
945 | shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT); | |
946 | shost->can_queue = HISI_SAS_COMMAND_ENTRIES; | |
947 | shost->cmd_per_lun = HISI_SAS_COMMAND_ENTRIES; | |
948 | ||
949 | sha->sas_ha_name = DRV_NAME; | |
950 | sha->dev = &hisi_hba->pdev->dev; | |
951 | sha->lldd_module = THIS_MODULE; | |
952 | sha->sas_addr = &hisi_hba->sas_addr[0]; | |
953 | sha->num_phys = hisi_hba->n_phy; | |
954 | sha->core.shost = hisi_hba->shost; | |
955 | ||
956 | for (i = 0; i < hisi_hba->n_phy; i++) { | |
957 | sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; | |
958 | sha->sas_port[i] = &hisi_hba->port[i].sas_port; | |
959 | } | |
960 | ||
5d74242e JG |
961 | hisi_sas_init_add(hisi_hba); |
962 | ||
8ff1d571 JG |
963 | rc = hisi_hba->hw->hw_init(hisi_hba); |
964 | if (rc) | |
965 | goto err_out_ha; | |
966 | ||
7eb7869f JG |
967 | rc = scsi_add_host(shost, &pdev->dev); |
968 | if (rc) | |
969 | goto err_out_ha; | |
970 | ||
971 | rc = sas_register_ha(sha); | |
972 | if (rc) | |
973 | goto err_out_register_ha; | |
974 | ||
975 | scsi_scan_host(shost); | |
976 | ||
977 | return 0; | |
978 | ||
979 | err_out_register_ha: | |
980 | scsi_remove_host(shost); | |
981 | err_out_ha: | |
982 | kfree(shost); | |
983 | return rc; | |
984 | } | |
985 | EXPORT_SYMBOL_GPL(hisi_sas_probe); | |
986 | ||
89d53322 JG |
987 | int hisi_sas_remove(struct platform_device *pdev) |
988 | { | |
989 | struct sas_ha_struct *sha = platform_get_drvdata(pdev); | |
990 | struct hisi_hba *hisi_hba = sha->lldd_ha; | |
991 | ||
992 | scsi_remove_host(sha->core.shost); | |
993 | sas_unregister_ha(sha); | |
994 | sas_remove_host(sha->core.shost); | |
995 | ||
996 | hisi_sas_free(hisi_hba); | |
997 | return 0; | |
998 | } | |
999 | EXPORT_SYMBOL_GPL(hisi_sas_remove); | |
1000 | ||
e8899fad JG |
1001 | static __init int hisi_sas_init(void) |
1002 | { | |
1003 | pr_info("hisi_sas: driver version %s\n", DRV_VERSION); | |
1004 | ||
1005 | hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); | |
1006 | if (!hisi_sas_stt) | |
1007 | return -ENOMEM; | |
1008 | ||
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | static __exit void hisi_sas_exit(void) | |
1013 | { | |
1014 | sas_release_transport(hisi_sas_stt); | |
1015 | } | |
1016 | ||
1017 | module_init(hisi_sas_init); | |
1018 | module_exit(hisi_sas_exit); | |
1019 | ||
1020 | MODULE_VERSION(DRV_VERSION); | |
1021 | MODULE_LICENSE("GPL"); | |
1022 | MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); | |
1023 | MODULE_DESCRIPTION("HISILICON SAS controller driver"); | |
1024 | MODULE_ALIAS("platform:" DRV_NAME); |