Commit | Line | Data |
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935912c5 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
c6131fa5 GU |
2 | /* |
3 | * PS3 Disk Storage Driver | |
4 | * | |
5 | * Copyright (C) 2007 Sony Computer Entertainment Inc. | |
6 | * Copyright 2007 Sony Corp. | |
c6131fa5 GU |
7 | */ |
8 | ||
9 | #include <linux/ata.h> | |
fab1adcf | 10 | #include <linux/blk-mq.h> |
5a0e3ad6 | 11 | #include <linux/slab.h> |
0c8d44f2 | 12 | #include <linux/module.h> |
c6131fa5 GU |
13 | |
14 | #include <asm/lv1call.h> | |
15 | #include <asm/ps3stor.h> | |
16 | #include <asm/firmware.h> | |
17 | ||
18 | ||
19 | #define DEVICE_NAME "ps3disk" | |
20 | ||
21 | #define BOUNCE_SIZE (64*1024) | |
22 | ||
23 | #define PS3DISK_MAX_DISKS 16 | |
24 | #define PS3DISK_MINORS 16 | |
25 | ||
26 | ||
27 | #define PS3DISK_NAME "ps3d%c" | |
28 | ||
29 | ||
30 | struct ps3disk_private { | |
31 | spinlock_t lock; /* Request queue spinlock */ | |
fab1adcf | 32 | struct blk_mq_tag_set tag_set; |
c6131fa5 GU |
33 | struct gendisk *gendisk; |
34 | unsigned int blocking_factor; | |
35 | struct request *req; | |
36 | u64 raw_capacity; | |
37 | unsigned char model[ATA_ID_PROD_LEN+1]; | |
38 | }; | |
39 | ||
40 | ||
41 | #define LV1_STORAGE_SEND_ATA_COMMAND (2) | |
42 | #define LV1_STORAGE_ATA_HDDOUT (0x23) | |
43 | ||
44 | struct lv1_ata_cmnd_block { | |
45 | u16 features; | |
46 | u16 sector_count; | |
47 | u16 LBA_low; | |
48 | u16 LBA_mid; | |
49 | u16 LBA_high; | |
50 | u8 device; | |
51 | u8 command; | |
52 | u32 is_ext; | |
53 | u32 proto; | |
54 | u32 in_out; | |
55 | u32 size; | |
56 | u64 buffer; | |
57 | u32 arglen; | |
58 | }; | |
59 | ||
60 | enum lv1_ata_proto { | |
61 | NON_DATA_PROTO = 0, | |
62 | PIO_DATA_IN_PROTO = 1, | |
63 | PIO_DATA_OUT_PROTO = 2, | |
64 | DMA_PROTO = 3 | |
65 | }; | |
66 | ||
67 | enum lv1_ata_in_out { | |
68 | DIR_WRITE = 0, /* memory -> device */ | |
69 | DIR_READ = 1 /* device -> memory */ | |
70 | }; | |
71 | ||
72 | static int ps3disk_major; | |
73 | ||
74 | ||
83d5cde4 | 75 | static const struct block_device_operations ps3disk_fops = { |
c6131fa5 GU |
76 | .owner = THIS_MODULE, |
77 | }; | |
78 | ||
79 | ||
80 | static void ps3disk_scatter_gather(struct ps3_storage_device *dev, | |
81 | struct request *req, int gather) | |
82 | { | |
83 | unsigned int offset = 0; | |
5705f702 | 84 | struct req_iterator iter; |
7988613b | 85 | struct bio_vec bvec; |
c6131fa5 | 86 | |
5705f702 | 87 | rq_for_each_segment(bvec, req, iter) { |
6c92e699 | 88 | if (gather) |
6e0a4855 | 89 | memcpy_from_bvec(dev->bounce_buf + offset, &bvec); |
6c92e699 | 90 | else |
6e0a4855 | 91 | memcpy_to_bvec(&bvec, dev->bounce_buf + offset); |
c6131fa5 GU |
92 | } |
93 | } | |
94 | ||
fab1adcf JA |
95 | static blk_status_t ps3disk_submit_request_sg(struct ps3_storage_device *dev, |
96 | struct request *req) | |
c6131fa5 | 97 | { |
03fa68c2 | 98 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
99 | int write = rq_data_dir(req), res; |
100 | const char *op = write ? "write" : "read"; | |
101 | u64 start_sector, sectors; | |
102 | unsigned int region_id = dev->regions[dev->region_idx].id; | |
103 | ||
104 | #ifdef DEBUG | |
105 | unsigned int n = 0; | |
7988613b | 106 | struct bio_vec bv; |
5705f702 | 107 | struct req_iterator iter; |
c6131fa5 | 108 | |
5705f702 | 109 | rq_for_each_segment(bv, req, iter) |
c6131fa5 GU |
110 | n++; |
111 | dev_dbg(&dev->sbd.core, | |
83096ebf TH |
112 | "%s:%u: %s req has %u bvecs for %u sectors\n", |
113 | __func__, __LINE__, op, n, blk_rq_sectors(req)); | |
c6131fa5 GU |
114 | #endif |
115 | ||
83096ebf TH |
116 | start_sector = blk_rq_pos(req) * priv->blocking_factor; |
117 | sectors = blk_rq_sectors(req) * priv->blocking_factor; | |
e377c6e2 | 118 | dev_dbg(&dev->sbd.core, "%s:%u: %s %llu sectors starting at %llu\n", |
c6131fa5 GU |
119 | __func__, __LINE__, op, sectors, start_sector); |
120 | ||
121 | if (write) { | |
122 | ps3disk_scatter_gather(dev, req, 1); | |
123 | ||
124 | res = lv1_storage_write(dev->sbd.dev_id, region_id, | |
125 | start_sector, sectors, 0, | |
126 | dev->bounce_lpar, &dev->tag); | |
127 | } else { | |
128 | res = lv1_storage_read(dev->sbd.dev_id, region_id, | |
129 | start_sector, sectors, 0, | |
130 | dev->bounce_lpar, &dev->tag); | |
131 | } | |
132 | if (res) { | |
133 | dev_err(&dev->sbd.core, "%s:%u: %s failed %d\n", __func__, | |
134 | __LINE__, op, res); | |
fab1adcf | 135 | return BLK_STS_IOERR; |
c6131fa5 GU |
136 | } |
137 | ||
138 | priv->req = req; | |
fab1adcf | 139 | return BLK_STS_OK; |
c6131fa5 GU |
140 | } |
141 | ||
fab1adcf JA |
142 | static blk_status_t ps3disk_submit_flush_request(struct ps3_storage_device *dev, |
143 | struct request *req) | |
c6131fa5 | 144 | { |
03fa68c2 | 145 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
146 | u64 res; |
147 | ||
148 | dev_dbg(&dev->sbd.core, "%s:%u: flush request\n", __func__, __LINE__); | |
149 | ||
150 | res = lv1_storage_send_device_command(dev->sbd.dev_id, | |
151 | LV1_STORAGE_ATA_HDDOUT, 0, 0, 0, | |
152 | 0, &dev->tag); | |
153 | if (res) { | |
e377c6e2 | 154 | dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n", |
c6131fa5 | 155 | __func__, __LINE__, res); |
fab1adcf | 156 | return BLK_STS_IOERR; |
c6131fa5 GU |
157 | } |
158 | ||
159 | priv->req = req; | |
fab1adcf | 160 | return BLK_STS_OK; |
c6131fa5 GU |
161 | } |
162 | ||
fab1adcf JA |
163 | static blk_status_t ps3disk_do_request(struct ps3_storage_device *dev, |
164 | struct request *req) | |
c6131fa5 | 165 | { |
c6131fa5 GU |
166 | dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__); |
167 | ||
fab1adcf JA |
168 | switch (req_op(req)) { |
169 | case REQ_OP_FLUSH: | |
170 | return ps3disk_submit_flush_request(dev, req); | |
171 | case REQ_OP_READ: | |
172 | case REQ_OP_WRITE: | |
173 | return ps3disk_submit_request_sg(dev, req); | |
174 | default: | |
175 | blk_dump_rq_flags(req, DEVICE_NAME " bad request"); | |
176 | return BLK_STS_IOERR; | |
c6131fa5 GU |
177 | } |
178 | } | |
179 | ||
fab1adcf JA |
180 | static blk_status_t ps3disk_queue_rq(struct blk_mq_hw_ctx *hctx, |
181 | const struct blk_mq_queue_data *bd) | |
c6131fa5 | 182 | { |
fab1adcf | 183 | struct request_queue *q = hctx->queue; |
c6131fa5 | 184 | struct ps3_storage_device *dev = q->queuedata; |
03fa68c2 | 185 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
fab1adcf | 186 | blk_status_t ret; |
c6131fa5 | 187 | |
fab1adcf JA |
188 | blk_mq_start_request(bd->rq); |
189 | ||
190 | spin_lock_irq(&priv->lock); | |
191 | ret = ps3disk_do_request(dev, bd->rq); | |
192 | spin_unlock_irq(&priv->lock); | |
c6131fa5 | 193 | |
fab1adcf | 194 | return ret; |
c6131fa5 GU |
195 | } |
196 | ||
197 | static irqreturn_t ps3disk_interrupt(int irq, void *data) | |
198 | { | |
199 | struct ps3_storage_device *dev = data; | |
200 | struct ps3disk_private *priv; | |
201 | struct request *req; | |
2a842aca CH |
202 | int res, read; |
203 | blk_status_t error; | |
c6131fa5 | 204 | u64 tag, status; |
c6131fa5 GU |
205 | const char *op; |
206 | ||
207 | res = lv1_storage_get_async_status(dev->sbd.dev_id, &tag, &status); | |
208 | ||
209 | if (tag != dev->tag) | |
210 | dev_err(&dev->sbd.core, | |
e377c6e2 | 211 | "%s:%u: tag mismatch, got %llx, expected %llx\n", |
c6131fa5 GU |
212 | __func__, __LINE__, tag, dev->tag); |
213 | ||
214 | if (res) { | |
e377c6e2 | 215 | dev_err(&dev->sbd.core, "%s:%u: res=%d status=0x%llx\n", |
c6131fa5 GU |
216 | __func__, __LINE__, res, status); |
217 | return IRQ_HANDLED; | |
218 | } | |
219 | ||
03fa68c2 | 220 | priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
221 | req = priv->req; |
222 | if (!req) { | |
223 | dev_dbg(&dev->sbd.core, | |
224 | "%s:%u non-block layer request completed\n", __func__, | |
225 | __LINE__); | |
226 | dev->lv1_status = status; | |
227 | complete(&dev->done); | |
228 | return IRQ_HANDLED; | |
229 | } | |
230 | ||
3a5e02ce | 231 | if (req_op(req) == REQ_OP_FLUSH) { |
c6131fa5 | 232 | read = 0; |
c6131fa5 GU |
233 | op = "flush"; |
234 | } else { | |
235 | read = !rq_data_dir(req); | |
c6131fa5 GU |
236 | op = read ? "read" : "write"; |
237 | } | |
238 | if (status) { | |
e377c6e2 | 239 | dev_dbg(&dev->sbd.core, "%s:%u: %s failed 0x%llx\n", __func__, |
c6131fa5 | 240 | __LINE__, op, status); |
2a842aca | 241 | error = BLK_STS_IOERR; |
c6131fa5 GU |
242 | } else { |
243 | dev_dbg(&dev->sbd.core, "%s:%u: %s completed\n", __func__, | |
244 | __LINE__, op); | |
f01ab252 | 245 | error = 0; |
c6131fa5 GU |
246 | if (read) |
247 | ps3disk_scatter_gather(dev, req, 0); | |
248 | } | |
249 | ||
250 | spin_lock(&priv->lock); | |
c6131fa5 | 251 | priv->req = NULL; |
fab1adcf | 252 | blk_mq_end_request(req, error); |
c6131fa5 GU |
253 | spin_unlock(&priv->lock); |
254 | ||
89662ac5 | 255 | blk_mq_run_hw_queues(priv->gendisk->queue, true); |
c6131fa5 GU |
256 | return IRQ_HANDLED; |
257 | } | |
258 | ||
259 | static int ps3disk_sync_cache(struct ps3_storage_device *dev) | |
260 | { | |
261 | u64 res; | |
262 | ||
263 | dev_dbg(&dev->sbd.core, "%s:%u: sync cache\n", __func__, __LINE__); | |
264 | ||
265 | res = ps3stor_send_command(dev, LV1_STORAGE_ATA_HDDOUT, 0, 0, 0, 0); | |
266 | if (res) { | |
e377c6e2 | 267 | dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n", |
c6131fa5 GU |
268 | __func__, __LINE__, res); |
269 | return -EIO; | |
270 | } | |
271 | return 0; | |
272 | } | |
273 | ||
274 | ||
275 | /* ATA helpers copied from drivers/ata/libata-core.c */ | |
276 | ||
277 | static void swap_buf_le16(u16 *buf, unsigned int buf_words) | |
278 | { | |
279 | #ifdef __BIG_ENDIAN | |
280 | unsigned int i; | |
281 | ||
282 | for (i = 0; i < buf_words; i++) | |
283 | buf[i] = le16_to_cpu(buf[i]); | |
284 | #endif /* __BIG_ENDIAN */ | |
285 | } | |
286 | ||
287 | static u64 ata_id_n_sectors(const u16 *id) | |
288 | { | |
289 | if (ata_id_has_lba(id)) { | |
290 | if (ata_id_has_lba48(id)) | |
291 | return ata_id_u64(id, 100); | |
292 | else | |
293 | return ata_id_u32(id, 60); | |
294 | } else { | |
295 | if (ata_id_current_chs_valid(id)) | |
296 | return ata_id_u32(id, 57); | |
297 | else | |
298 | return id[1] * id[3] * id[6]; | |
299 | } | |
300 | } | |
301 | ||
302 | static void ata_id_string(const u16 *id, unsigned char *s, unsigned int ofs, | |
303 | unsigned int len) | |
304 | { | |
305 | unsigned int c; | |
306 | ||
307 | while (len > 0) { | |
308 | c = id[ofs] >> 8; | |
309 | *s = c; | |
310 | s++; | |
311 | ||
312 | c = id[ofs] & 0xff; | |
313 | *s = c; | |
314 | s++; | |
315 | ||
316 | ofs++; | |
317 | len -= 2; | |
318 | } | |
319 | } | |
320 | ||
321 | static void ata_id_c_string(const u16 *id, unsigned char *s, unsigned int ofs, | |
322 | unsigned int len) | |
323 | { | |
324 | unsigned char *p; | |
325 | ||
326 | WARN_ON(!(len & 1)); | |
327 | ||
328 | ata_id_string(id, s, ofs, len - 1); | |
329 | ||
330 | p = s + strnlen(s, len - 1); | |
331 | while (p > s && p[-1] == ' ') | |
332 | p--; | |
333 | *p = '\0'; | |
334 | } | |
335 | ||
336 | static int ps3disk_identify(struct ps3_storage_device *dev) | |
337 | { | |
03fa68c2 | 338 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
339 | struct lv1_ata_cmnd_block ata_cmnd; |
340 | u16 *id = dev->bounce_buf; | |
341 | u64 res; | |
342 | ||
343 | dev_dbg(&dev->sbd.core, "%s:%u: identify disk\n", __func__, __LINE__); | |
344 | ||
345 | memset(&ata_cmnd, 0, sizeof(struct lv1_ata_cmnd_block)); | |
346 | ata_cmnd.command = ATA_CMD_ID_ATA; | |
347 | ata_cmnd.sector_count = 1; | |
348 | ata_cmnd.size = ata_cmnd.arglen = ATA_ID_WORDS * 2; | |
349 | ata_cmnd.buffer = dev->bounce_lpar; | |
350 | ata_cmnd.proto = PIO_DATA_IN_PROTO; | |
351 | ata_cmnd.in_out = DIR_READ; | |
352 | ||
353 | res = ps3stor_send_command(dev, LV1_STORAGE_SEND_ATA_COMMAND, | |
354 | ps3_mm_phys_to_lpar(__pa(&ata_cmnd)), | |
355 | sizeof(ata_cmnd), ata_cmnd.buffer, | |
356 | ata_cmnd.arglen); | |
357 | if (res) { | |
e377c6e2 | 358 | dev_err(&dev->sbd.core, "%s:%u: identify disk failed 0x%llx\n", |
c6131fa5 GU |
359 | __func__, __LINE__, res); |
360 | return -EIO; | |
361 | } | |
362 | ||
363 | swap_buf_le16(id, ATA_ID_WORDS); | |
364 | ||
365 | /* All we're interested in are raw capacity and model name */ | |
366 | priv->raw_capacity = ata_id_n_sectors(id); | |
367 | ata_id_c_string(id, priv->model, ATA_ID_PROD, sizeof(priv->model)); | |
368 | return 0; | |
369 | } | |
370 | ||
c6131fa5 GU |
371 | static unsigned long ps3disk_mask; |
372 | ||
373 | static DEFINE_MUTEX(ps3disk_mask_mutex); | |
374 | ||
fab1adcf JA |
375 | static const struct blk_mq_ops ps3disk_mq_ops = { |
376 | .queue_rq = ps3disk_queue_rq, | |
377 | }; | |
378 | ||
8d85fce7 | 379 | static int ps3disk_probe(struct ps3_system_bus_device *_dev) |
c6131fa5 GU |
380 | { |
381 | struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core); | |
382 | struct ps3disk_private *priv; | |
383 | int error; | |
384 | unsigned int devidx; | |
385 | struct request_queue *queue; | |
386 | struct gendisk *gendisk; | |
387 | ||
388 | if (dev->blk_size < 512) { | |
389 | dev_err(&dev->sbd.core, | |
e377c6e2 | 390 | "%s:%u: cannot handle block size %llu\n", __func__, |
c6131fa5 GU |
391 | __LINE__, dev->blk_size); |
392 | return -EINVAL; | |
393 | } | |
394 | ||
395 | BUILD_BUG_ON(PS3DISK_MAX_DISKS > BITS_PER_LONG); | |
396 | mutex_lock(&ps3disk_mask_mutex); | |
397 | devidx = find_first_zero_bit(&ps3disk_mask, PS3DISK_MAX_DISKS); | |
398 | if (devidx >= PS3DISK_MAX_DISKS) { | |
399 | dev_err(&dev->sbd.core, "%s:%u: Too many disks\n", __func__, | |
400 | __LINE__); | |
401 | mutex_unlock(&ps3disk_mask_mutex); | |
402 | return -ENOSPC; | |
403 | } | |
404 | __set_bit(devidx, &ps3disk_mask); | |
405 | mutex_unlock(&ps3disk_mask_mutex); | |
406 | ||
407 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
408 | if (!priv) { | |
409 | error = -ENOMEM; | |
410 | goto fail; | |
411 | } | |
412 | ||
03fa68c2 | 413 | ps3_system_bus_set_drvdata(_dev, priv); |
c6131fa5 GU |
414 | spin_lock_init(&priv->lock); |
415 | ||
416 | dev->bounce_size = BOUNCE_SIZE; | |
417 | dev->bounce_buf = kmalloc(BOUNCE_SIZE, GFP_DMA); | |
418 | if (!dev->bounce_buf) { | |
419 | error = -ENOMEM; | |
420 | goto fail_free_priv; | |
421 | } | |
422 | ||
423 | error = ps3stor_setup(dev, ps3disk_interrupt); | |
424 | if (error) | |
425 | goto fail_free_bounce; | |
426 | ||
427 | ps3disk_identify(dev); | |
428 | ||
89662ac5 | 429 | error = blk_mq_alloc_sq_tag_set(&priv->tag_set, &ps3disk_mq_ops, 1, |
fab1adcf | 430 | BLK_MQ_F_SHOULD_MERGE); |
89662ac5 | 431 | if (error) |
c6131fa5 | 432 | goto fail_teardown; |
89662ac5 CH |
433 | |
434 | gendisk = blk_mq_alloc_disk(&priv->tag_set, dev); | |
435 | if (IS_ERR(gendisk)) { | |
436 | dev_err(&dev->sbd.core, "%s:%u: blk_mq_alloc_disk failed\n", | |
437 | __func__, __LINE__); | |
438 | error = PTR_ERR(gendisk); | |
439 | goto fail_free_tag_set; | |
c6131fa5 GU |
440 | } |
441 | ||
89662ac5 | 442 | queue = gendisk->queue; |
c6131fa5 | 443 | |
086fa5ff | 444 | blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9); |
c6131fa5 | 445 | blk_queue_dma_alignment(queue, dev->blk_size-1); |
e1defc4f | 446 | blk_queue_logical_block_size(queue, dev->blk_size); |
c6131fa5 | 447 | |
12c95f13 | 448 | blk_queue_write_cache(queue, true, false); |
c6131fa5 | 449 | |
8a78362c | 450 | blk_queue_max_segments(queue, -1); |
c6131fa5 GU |
451 | blk_queue_max_segment_size(queue, dev->bounce_size); |
452 | ||
c6131fa5 GU |
453 | priv->gendisk = gendisk; |
454 | gendisk->major = ps3disk_major; | |
455 | gendisk->first_minor = devidx * PS3DISK_MINORS; | |
89662ac5 | 456 | gendisk->minors = PS3DISK_MINORS; |
c6131fa5 | 457 | gendisk->fops = &ps3disk_fops; |
c6131fa5 | 458 | gendisk->private_data = dev; |
c6131fa5 GU |
459 | snprintf(gendisk->disk_name, sizeof(gendisk->disk_name), PS3DISK_NAME, |
460 | devidx+'a'); | |
461 | priv->blocking_factor = dev->blk_size >> 9; | |
462 | set_capacity(gendisk, | |
463 | dev->regions[dev->region_idx].size*priv->blocking_factor); | |
464 | ||
465 | dev_info(&dev->sbd.core, | |
72deb455 | 466 | "%s is a %s (%llu MiB total, %llu MiB for OtherOS)\n", |
c6131fa5 GU |
467 | gendisk->disk_name, priv->model, priv->raw_capacity >> 11, |
468 | get_capacity(gendisk) >> 11); | |
469 | ||
ff4cbe0f LC |
470 | error = device_add_disk(&dev->sbd.core, gendisk, NULL); |
471 | if (error) | |
472 | goto fail_cleanup_disk; | |
c6131fa5 | 473 | |
ff4cbe0f LC |
474 | return 0; |
475 | fail_cleanup_disk: | |
8b9ab626 | 476 | put_disk(gendisk); |
89662ac5 | 477 | fail_free_tag_set: |
fab1adcf | 478 | blk_mq_free_tag_set(&priv->tag_set); |
c6131fa5 GU |
479 | fail_teardown: |
480 | ps3stor_teardown(dev); | |
481 | fail_free_bounce: | |
482 | kfree(dev->bounce_buf); | |
483 | fail_free_priv: | |
484 | kfree(priv); | |
03fa68c2 | 485 | ps3_system_bus_set_drvdata(_dev, NULL); |
c6131fa5 GU |
486 | fail: |
487 | mutex_lock(&ps3disk_mask_mutex); | |
488 | __clear_bit(devidx, &ps3disk_mask); | |
489 | mutex_unlock(&ps3disk_mask_mutex); | |
490 | return error; | |
491 | } | |
492 | ||
6d247e4d | 493 | static void ps3disk_remove(struct ps3_system_bus_device *_dev) |
c6131fa5 GU |
494 | { |
495 | struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core); | |
03fa68c2 | 496 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
497 | |
498 | mutex_lock(&ps3disk_mask_mutex); | |
f331c029 | 499 | __clear_bit(MINOR(disk_devt(priv->gendisk)) / PS3DISK_MINORS, |
c6131fa5 GU |
500 | &ps3disk_mask); |
501 | mutex_unlock(&ps3disk_mask_mutex); | |
502 | del_gendisk(priv->gendisk); | |
8b9ab626 | 503 | put_disk(priv->gendisk); |
fab1adcf | 504 | blk_mq_free_tag_set(&priv->tag_set); |
c6131fa5 GU |
505 | dev_notice(&dev->sbd.core, "Synchronizing disk cache\n"); |
506 | ps3disk_sync_cache(dev); | |
507 | ps3stor_teardown(dev); | |
508 | kfree(dev->bounce_buf); | |
509 | kfree(priv); | |
03fa68c2 | 510 | ps3_system_bus_set_drvdata(_dev, NULL); |
c6131fa5 GU |
511 | } |
512 | ||
513 | static struct ps3_system_bus_driver ps3disk = { | |
514 | .match_id = PS3_MATCH_ID_STOR_DISK, | |
515 | .core.name = DEVICE_NAME, | |
516 | .core.owner = THIS_MODULE, | |
517 | .probe = ps3disk_probe, | |
518 | .remove = ps3disk_remove, | |
519 | .shutdown = ps3disk_remove, | |
520 | }; | |
521 | ||
522 | ||
523 | static int __init ps3disk_init(void) | |
524 | { | |
525 | int error; | |
526 | ||
527 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) | |
528 | return -ENODEV; | |
529 | ||
530 | error = register_blkdev(0, DEVICE_NAME); | |
531 | if (error <= 0) { | |
532 | printk(KERN_ERR "%s:%u: register_blkdev failed %d\n", __func__, | |
533 | __LINE__, error); | |
534 | return error; | |
535 | } | |
536 | ps3disk_major = error; | |
537 | ||
538 | pr_info("%s:%u: registered block device major %d\n", __func__, | |
539 | __LINE__, ps3disk_major); | |
540 | ||
541 | error = ps3_system_bus_driver_register(&ps3disk); | |
542 | if (error) | |
543 | unregister_blkdev(ps3disk_major, DEVICE_NAME); | |
544 | ||
545 | return error; | |
546 | } | |
547 | ||
548 | static void __exit ps3disk_exit(void) | |
549 | { | |
550 | ps3_system_bus_driver_unregister(&ps3disk); | |
551 | unregister_blkdev(ps3disk_major, DEVICE_NAME); | |
552 | } | |
553 | ||
554 | module_init(ps3disk_init); | |
555 | module_exit(ps3disk_exit); | |
556 | ||
557 | MODULE_LICENSE("GPL"); | |
558 | MODULE_DESCRIPTION("PS3 Disk Storage Driver"); | |
559 | MODULE_AUTHOR("Sony Corporation"); | |
560 | MODULE_ALIAS(PS3_MODULE_ALIAS_STOR_DISK); |