Commit | Line | Data |
---|---|---|
cd9e9808 MB |
1 | #ifndef NVM_H |
2 | #define NVM_H | |
3 | ||
b76eb20b | 4 | #include <linux/blkdev.h> |
a7fd9a4f | 5 | #include <linux/types.h> |
b76eb20b | 6 | #include <uapi/linux/lightnvm.h> |
a7fd9a4f | 7 | |
cd9e9808 MB |
8 | enum { |
9 | NVM_IO_OK = 0, | |
10 | NVM_IO_REQUEUE = 1, | |
11 | NVM_IO_DONE = 2, | |
12 | NVM_IO_ERR = 3, | |
13 | ||
14 | NVM_IOTYPE_NONE = 0, | |
15 | NVM_IOTYPE_GC = 1, | |
16 | }; | |
17 | ||
a7fd9a4f JA |
18 | #define NVM_BLK_BITS (16) |
19 | #define NVM_PG_BITS (16) | |
20 | #define NVM_SEC_BITS (8) | |
21 | #define NVM_PL_BITS (8) | |
22 | #define NVM_LUN_BITS (8) | |
df414b33 | 23 | #define NVM_CH_BITS (7) |
a7fd9a4f JA |
24 | |
25 | struct ppa_addr { | |
26 | /* Generic structure for all addresses */ | |
27 | union { | |
28 | struct { | |
29 | u64 blk : NVM_BLK_BITS; | |
30 | u64 pg : NVM_PG_BITS; | |
31 | u64 sec : NVM_SEC_BITS; | |
32 | u64 pl : NVM_PL_BITS; | |
33 | u64 lun : NVM_LUN_BITS; | |
34 | u64 ch : NVM_CH_BITS; | |
df414b33 | 35 | u64 reserved : 1; |
a7fd9a4f JA |
36 | } g; |
37 | ||
df414b33 MB |
38 | struct { |
39 | u64 line : 63; | |
40 | u64 is_cached : 1; | |
41 | } c; | |
42 | ||
a7fd9a4f JA |
43 | u64 ppa; |
44 | }; | |
45 | }; | |
46 | ||
47 | struct nvm_rq; | |
48 | struct nvm_id; | |
49 | struct nvm_dev; | |
50 | ||
51 | typedef int (nvm_l2p_update_fn)(u64, u32, __le64 *, void *); | |
a7fd9a4f JA |
52 | typedef int (nvm_id_fn)(struct nvm_dev *, struct nvm_id *); |
53 | typedef int (nvm_get_l2p_tbl_fn)(struct nvm_dev *, u64, u32, | |
54 | nvm_l2p_update_fn *, void *); | |
e11903f5 | 55 | typedef int (nvm_op_bb_tbl_fn)(struct nvm_dev *, struct ppa_addr, u8 *); |
00ee6cc3 | 56 | typedef int (nvm_op_set_bb_fn)(struct nvm_dev *, struct ppa_addr *, int, int); |
a7fd9a4f JA |
57 | typedef int (nvm_submit_io_fn)(struct nvm_dev *, struct nvm_rq *); |
58 | typedef int (nvm_erase_blk_fn)(struct nvm_dev *, struct nvm_rq *); | |
59 | typedef void *(nvm_create_dma_pool_fn)(struct nvm_dev *, char *); | |
60 | typedef void (nvm_destroy_dma_pool_fn)(void *); | |
61 | typedef void *(nvm_dev_dma_alloc_fn)(struct nvm_dev *, void *, gfp_t, | |
62 | dma_addr_t *); | |
63 | typedef void (nvm_dev_dma_free_fn)(void *, void*, dma_addr_t); | |
64 | ||
65 | struct nvm_dev_ops { | |
66 | nvm_id_fn *identity; | |
67 | nvm_get_l2p_tbl_fn *get_l2p_tbl; | |
68 | nvm_op_bb_tbl_fn *get_bb_tbl; | |
69 | nvm_op_set_bb_fn *set_bb_tbl; | |
70 | ||
71 | nvm_submit_io_fn *submit_io; | |
72 | nvm_erase_blk_fn *erase_block; | |
73 | ||
74 | nvm_create_dma_pool_fn *create_dma_pool; | |
75 | nvm_destroy_dma_pool_fn *destroy_dma_pool; | |
76 | nvm_dev_dma_alloc_fn *dev_dma_alloc; | |
77 | nvm_dev_dma_free_fn *dev_dma_free; | |
78 | ||
79 | unsigned int max_phys_sect; | |
80 | }; | |
81 | ||
82 | ||
83 | ||
cd9e9808 MB |
84 | #ifdef CONFIG_NVM |
85 | ||
86 | #include <linux/blkdev.h> | |
cd9e9808 MB |
87 | #include <linux/file.h> |
88 | #include <linux/dmapool.h> | |
e3eb3799 | 89 | #include <uapi/linux/lightnvm.h> |
cd9e9808 MB |
90 | |
91 | enum { | |
92 | /* HW Responsibilities */ | |
93 | NVM_RSP_L2P = 1 << 0, | |
94 | NVM_RSP_ECC = 1 << 1, | |
95 | ||
96 | /* Physical Adressing Mode */ | |
97 | NVM_ADDRMODE_LINEAR = 0, | |
98 | NVM_ADDRMODE_CHANNEL = 1, | |
99 | ||
100 | /* Plane programming mode for LUN */ | |
d5bdec8d MB |
101 | NVM_PLANE_SINGLE = 1, |
102 | NVM_PLANE_DOUBLE = 2, | |
103 | NVM_PLANE_QUAD = 4, | |
cd9e9808 MB |
104 | |
105 | /* Status codes */ | |
106 | NVM_RSP_SUCCESS = 0x0, | |
107 | NVM_RSP_NOT_CHANGEABLE = 0x1, | |
108 | NVM_RSP_ERR_FAILWRITE = 0x40ff, | |
109 | NVM_RSP_ERR_EMPTYPAGE = 0x42ff, | |
110 | ||
111 | /* Device opcodes */ | |
112 | NVM_OP_HBREAD = 0x02, | |
113 | NVM_OP_HBWRITE = 0x81, | |
114 | NVM_OP_PWRITE = 0x91, | |
115 | NVM_OP_PREAD = 0x92, | |
116 | NVM_OP_ERASE = 0x90, | |
117 | ||
118 | /* PPA Command Flags */ | |
119 | NVM_IO_SNGL_ACCESS = 0x0, | |
120 | NVM_IO_DUAL_ACCESS = 0x1, | |
121 | NVM_IO_QUAD_ACCESS = 0x2, | |
122 | ||
57b4bd06 | 123 | /* NAND Access Modes */ |
cd9e9808 MB |
124 | NVM_IO_SUSPEND = 0x80, |
125 | NVM_IO_SLC_MODE = 0x100, | |
126 | NVM_IO_SCRAMBLE_DISABLE = 0x200, | |
57b4bd06 MB |
127 | |
128 | /* Block Types */ | |
129 | NVM_BLK_T_FREE = 0x0, | |
130 | NVM_BLK_T_BAD = 0x1, | |
b5d4acd4 MB |
131 | NVM_BLK_T_GRWN_BAD = 0x2, |
132 | NVM_BLK_T_DEV = 0x4, | |
133 | NVM_BLK_T_HOST = 0x8, | |
f9a99950 MB |
134 | |
135 | /* Memory capabilities */ | |
136 | NVM_ID_CAP_SLC = 0x1, | |
137 | NVM_ID_CAP_CMD_SUSPEND = 0x2, | |
138 | NVM_ID_CAP_SCRAMBLE = 0x4, | |
139 | NVM_ID_CAP_ENCRYPT = 0x8, | |
ca5927e7 MB |
140 | |
141 | /* Memory types */ | |
142 | NVM_ID_FMTYPE_SLC = 0, | |
143 | NVM_ID_FMTYPE_MLC = 1, | |
bf643185 MB |
144 | |
145 | /* Device capabilities */ | |
146 | NVM_ID_DCAP_BBLKMGMT = 0x1, | |
147 | NVM_UD_DCAP_ECC = 0x2, | |
ca5927e7 MB |
148 | }; |
149 | ||
150 | struct nvm_id_lp_mlc { | |
151 | u16 num_pairs; | |
152 | u8 pairs[886]; | |
153 | }; | |
154 | ||
155 | struct nvm_id_lp_tbl { | |
156 | __u8 id[8]; | |
157 | struct nvm_id_lp_mlc mlc; | |
cd9e9808 MB |
158 | }; |
159 | ||
160 | struct nvm_id_group { | |
161 | u8 mtype; | |
162 | u8 fmtype; | |
cd9e9808 MB |
163 | u8 num_ch; |
164 | u8 num_lun; | |
165 | u8 num_pln; | |
166 | u16 num_blk; | |
167 | u16 num_pg; | |
168 | u16 fpg_sz; | |
169 | u16 csecs; | |
170 | u16 sos; | |
171 | u32 trdt; | |
172 | u32 trdm; | |
173 | u32 tprt; | |
174 | u32 tprm; | |
175 | u32 tbet; | |
176 | u32 tbem; | |
177 | u32 mpos; | |
12be5edf | 178 | u32 mccap; |
cd9e9808 | 179 | u16 cpar; |
ca5927e7 MB |
180 | |
181 | struct nvm_id_lp_tbl lptbl; | |
73387e7b | 182 | }; |
cd9e9808 MB |
183 | |
184 | struct nvm_addr_format { | |
185 | u8 ch_offset; | |
186 | u8 ch_len; | |
187 | u8 lun_offset; | |
188 | u8 lun_len; | |
189 | u8 pln_offset; | |
190 | u8 pln_len; | |
191 | u8 blk_offset; | |
192 | u8 blk_len; | |
193 | u8 pg_offset; | |
194 | u8 pg_len; | |
195 | u8 sect_offset; | |
196 | u8 sect_len; | |
cd9e9808 MB |
197 | }; |
198 | ||
199 | struct nvm_id { | |
200 | u8 ver_id; | |
201 | u8 vmnt; | |
202 | u8 cgrps; | |
cd9e9808 MB |
203 | u32 cap; |
204 | u32 dom; | |
205 | struct nvm_addr_format ppaf; | |
cd9e9808 MB |
206 | struct nvm_id_group groups[4]; |
207 | } __packed; | |
208 | ||
209 | struct nvm_target { | |
210 | struct list_head list; | |
976bdfca | 211 | struct nvm_dev *dev; |
cd9e9808 MB |
212 | struct nvm_tgt_type *type; |
213 | struct gendisk *disk; | |
214 | }; | |
215 | ||
216 | struct nvm_tgt_instance { | |
217 | struct nvm_tgt_type *tt; | |
218 | }; | |
219 | ||
220 | #define ADDR_EMPTY (~0ULL) | |
221 | ||
222 | #define NVM_VERSION_MAJOR 1 | |
223 | #define NVM_VERSION_MINOR 0 | |
224 | #define NVM_VERSION_PATCH 0 | |
225 | ||
91276162 | 226 | struct nvm_rq; |
72d256ec | 227 | typedef void (nvm_end_io_fn)(struct nvm_rq *); |
91276162 | 228 | |
cd9e9808 MB |
229 | struct nvm_rq { |
230 | struct nvm_tgt_instance *ins; | |
231 | struct nvm_dev *dev; | |
232 | ||
233 | struct bio *bio; | |
234 | ||
235 | union { | |
236 | struct ppa_addr ppa_addr; | |
237 | dma_addr_t dma_ppa_list; | |
238 | }; | |
239 | ||
240 | struct ppa_addr *ppa_list; | |
241 | ||
003fad37 JG |
242 | void *meta_list; |
243 | dma_addr_t dma_meta_list; | |
cd9e9808 | 244 | |
91276162 MB |
245 | struct completion *wait; |
246 | nvm_end_io_fn *end_io; | |
247 | ||
cd9e9808 | 248 | uint8_t opcode; |
6d5be959 | 249 | uint16_t nr_ppas; |
cd9e9808 | 250 | uint16_t flags; |
72d256ec | 251 | |
9f867268 | 252 | u64 ppa_status; /* ppa media status */ |
72d256ec | 253 | int error; |
cd9e9808 MB |
254 | }; |
255 | ||
256 | static inline struct nvm_rq *nvm_rq_from_pdu(void *pdu) | |
257 | { | |
258 | return pdu - sizeof(struct nvm_rq); | |
259 | } | |
260 | ||
261 | static inline void *nvm_rq_to_pdu(struct nvm_rq *rqdata) | |
262 | { | |
263 | return rqdata + 1; | |
264 | } | |
265 | ||
266 | struct nvm_block; | |
267 | ||
cd9e9808 MB |
268 | struct nvm_lun { |
269 | int id; | |
270 | ||
271 | int lun_id; | |
272 | int chnl_id; | |
273 | ||
cd9e9808 | 274 | spinlock_t lock; |
ff0e498b | 275 | |
077d2389 | 276 | unsigned int nr_free_blocks; /* Number of unused blocks */ |
ff0e498b JG |
277 | struct nvm_block *blocks; |
278 | }; | |
279 | ||
280 | enum { | |
281 | NVM_BLK_ST_FREE = 0x1, /* Free block */ | |
077d2389 | 282 | NVM_BLK_ST_TGT = 0x2, /* Block in use by target */ |
ff0e498b | 283 | NVM_BLK_ST_BAD = 0x8, /* Bad block */ |
cd9e9808 MB |
284 | }; |
285 | ||
286 | struct nvm_block { | |
287 | struct list_head list; | |
288 | struct nvm_lun *lun; | |
289 | unsigned long id; | |
290 | ||
291 | void *priv; | |
ff0e498b | 292 | int state; |
cd9e9808 MB |
293 | }; |
294 | ||
e3eb3799 MB |
295 | /* system block cpu representation */ |
296 | struct nvm_sb_info { | |
297 | unsigned long seqnr; | |
298 | unsigned long erase_cnt; | |
299 | unsigned int version; | |
300 | char mmtype[NVM_MMTYPE_LEN]; | |
301 | struct ppa_addr fs_ppa; | |
302 | }; | |
303 | ||
cd9e9808 MB |
304 | struct nvm_dev { |
305 | struct nvm_dev_ops *ops; | |
306 | ||
307 | struct list_head devices; | |
cd9e9808 MB |
308 | |
309 | /* Media manager */ | |
310 | struct nvmm_type *mt; | |
311 | void *mp; | |
312 | ||
b7692076 MB |
313 | /* System blocks */ |
314 | struct nvm_sb_info sb; | |
315 | ||
cd9e9808 MB |
316 | /* Device information */ |
317 | int nr_chnls; | |
318 | int nr_planes; | |
319 | int luns_per_chnl; | |
320 | int sec_per_pg; /* only sectors for a single page */ | |
321 | int pgs_per_blk; | |
322 | int blks_per_lun; | |
4891d120 MB |
323 | int fpg_size; |
324 | int pfpg_size; /* size of buffer if all pages are to be read */ | |
cd9e9808 MB |
325 | int sec_size; |
326 | int oob_size; | |
f9a99950 | 327 | int mccap; |
7386af27 | 328 | struct nvm_addr_format ppaf; |
cd9e9808 MB |
329 | |
330 | /* Calculated/Cached values. These do not reflect the actual usable | |
331 | * blocks at run-time. | |
332 | */ | |
333 | int max_rq_size; | |
334 | int plane_mode; /* drive device in single, double or quad mode */ | |
335 | ||
336 | int sec_per_pl; /* all sectors across planes */ | |
337 | int sec_per_blk; | |
338 | int sec_per_lun; | |
339 | ||
ca5927e7 MB |
340 | /* lower page table */ |
341 | int lps_per_blk; | |
342 | int *lptbl; | |
343 | ||
cd9e9808 | 344 | unsigned long total_blocks; |
4ece44af | 345 | unsigned long total_secs; |
cd9e9808 | 346 | int nr_luns; |
cd9e9808 | 347 | |
da1e2849 | 348 | unsigned long *lun_map; |
75b85649 | 349 | void *dma_pool; |
cd9e9808 MB |
350 | |
351 | struct nvm_id identity; | |
352 | ||
353 | /* Backend device */ | |
354 | struct request_queue *q; | |
355 | char name[DISK_NAME_LEN]; | |
e3eb3799 MB |
356 | |
357 | struct mutex mlock; | |
4c9dacb8 | 358 | spinlock_t lock; |
cd9e9808 MB |
359 | }; |
360 | ||
7386af27 MB |
361 | static inline struct ppa_addr generic_to_dev_addr(struct nvm_dev *dev, |
362 | struct ppa_addr r) | |
cd9e9808 MB |
363 | { |
364 | struct ppa_addr l; | |
365 | ||
7386af27 MB |
366 | l.ppa = ((u64)r.g.blk) << dev->ppaf.blk_offset; |
367 | l.ppa |= ((u64)r.g.pg) << dev->ppaf.pg_offset; | |
368 | l.ppa |= ((u64)r.g.sec) << dev->ppaf.sect_offset; | |
369 | l.ppa |= ((u64)r.g.pl) << dev->ppaf.pln_offset; | |
370 | l.ppa |= ((u64)r.g.lun) << dev->ppaf.lun_offset; | |
371 | l.ppa |= ((u64)r.g.ch) << dev->ppaf.ch_offset; | |
cd9e9808 MB |
372 | |
373 | return l; | |
374 | } | |
375 | ||
7386af27 MB |
376 | static inline struct ppa_addr dev_to_generic_addr(struct nvm_dev *dev, |
377 | struct ppa_addr r) | |
cd9e9808 MB |
378 | { |
379 | struct ppa_addr l; | |
380 | ||
5389a1df | 381 | l.ppa = 0; |
7386af27 MB |
382 | /* |
383 | * (r.ppa << X offset) & X len bitmask. X eq. blk, pg, etc. | |
384 | */ | |
385 | l.g.blk = (r.ppa >> dev->ppaf.blk_offset) & | |
386 | (((1 << dev->ppaf.blk_len) - 1)); | |
387 | l.g.pg |= (r.ppa >> dev->ppaf.pg_offset) & | |
388 | (((1 << dev->ppaf.pg_len) - 1)); | |
389 | l.g.sec |= (r.ppa >> dev->ppaf.sect_offset) & | |
390 | (((1 << dev->ppaf.sect_len) - 1)); | |
391 | l.g.pl |= (r.ppa >> dev->ppaf.pln_offset) & | |
392 | (((1 << dev->ppaf.pln_len) - 1)); | |
393 | l.g.lun |= (r.ppa >> dev->ppaf.lun_offset) & | |
394 | (((1 << dev->ppaf.lun_len) - 1)); | |
395 | l.g.ch |= (r.ppa >> dev->ppaf.ch_offset) & | |
396 | (((1 << dev->ppaf.ch_len) - 1)); | |
cd9e9808 MB |
397 | |
398 | return l; | |
399 | } | |
400 | ||
cd9e9808 MB |
401 | static inline int ppa_empty(struct ppa_addr ppa_addr) |
402 | { | |
403 | return (ppa_addr.ppa == ADDR_EMPTY); | |
404 | } | |
405 | ||
406 | static inline void ppa_set_empty(struct ppa_addr *ppa_addr) | |
407 | { | |
408 | ppa_addr->ppa = ADDR_EMPTY; | |
409 | } | |
410 | ||
411 | static inline struct ppa_addr block_to_ppa(struct nvm_dev *dev, | |
412 | struct nvm_block *blk) | |
413 | { | |
414 | struct ppa_addr ppa; | |
415 | struct nvm_lun *lun = blk->lun; | |
416 | ||
417 | ppa.ppa = 0; | |
418 | ppa.g.blk = blk->id % dev->blks_per_lun; | |
419 | ppa.g.lun = lun->lun_id; | |
420 | ppa.g.ch = lun->chnl_id; | |
421 | ||
422 | return ppa; | |
423 | } | |
424 | ||
e3eb3799 MB |
425 | static inline int ppa_to_slc(struct nvm_dev *dev, int slc_pg) |
426 | { | |
427 | return dev->lptbl[slc_pg]; | |
428 | } | |
429 | ||
dece1635 | 430 | typedef blk_qc_t (nvm_tgt_make_rq_fn)(struct request_queue *, struct bio *); |
cd9e9808 | 431 | typedef sector_t (nvm_tgt_capacity_fn)(void *); |
cd9e9808 MB |
432 | typedef void *(nvm_tgt_init_fn)(struct nvm_dev *, struct gendisk *, int, int); |
433 | typedef void (nvm_tgt_exit_fn)(void *); | |
434 | ||
435 | struct nvm_tgt_type { | |
436 | const char *name; | |
437 | unsigned int version[3]; | |
438 | ||
439 | /* target entry points */ | |
440 | nvm_tgt_make_rq_fn *make_rq; | |
441 | nvm_tgt_capacity_fn *capacity; | |
91276162 | 442 | nvm_end_io_fn *end_io; |
cd9e9808 MB |
443 | |
444 | /* module-specific init/teardown */ | |
445 | nvm_tgt_init_fn *init; | |
446 | nvm_tgt_exit_fn *exit; | |
447 | ||
448 | /* For internal use */ | |
449 | struct list_head list; | |
450 | }; | |
451 | ||
b76eb20b MB |
452 | extern struct nvm_tgt_type *nvm_find_target_type(const char *, int); |
453 | ||
6063fe39 SL |
454 | extern int nvm_register_tgt_type(struct nvm_tgt_type *); |
455 | extern void nvm_unregister_tgt_type(struct nvm_tgt_type *); | |
cd9e9808 MB |
456 | |
457 | extern void *nvm_dev_dma_alloc(struct nvm_dev *, gfp_t, dma_addr_t *); | |
458 | extern void nvm_dev_dma_free(struct nvm_dev *, void *, dma_addr_t); | |
459 | ||
460 | typedef int (nvmm_register_fn)(struct nvm_dev *); | |
461 | typedef void (nvmm_unregister_fn)(struct nvm_dev *); | |
b76eb20b MB |
462 | |
463 | typedef int (nvmm_create_tgt_fn)(struct nvm_dev *, struct nvm_ioctl_create *); | |
464 | typedef int (nvmm_remove_tgt_fn)(struct nvm_dev *, struct nvm_ioctl_remove *); | |
cd9e9808 MB |
465 | typedef struct nvm_block *(nvmm_get_blk_fn)(struct nvm_dev *, |
466 | struct nvm_lun *, unsigned long); | |
467 | typedef void (nvmm_put_blk_fn)(struct nvm_dev *, struct nvm_block *); | |
468 | typedef int (nvmm_open_blk_fn)(struct nvm_dev *, struct nvm_block *); | |
469 | typedef int (nvmm_close_blk_fn)(struct nvm_dev *, struct nvm_block *); | |
470 | typedef void (nvmm_flush_blk_fn)(struct nvm_dev *, struct nvm_block *); | |
471 | typedef int (nvmm_submit_io_fn)(struct nvm_dev *, struct nvm_rq *); | |
cd9e9808 MB |
472 | typedef int (nvmm_erase_blk_fn)(struct nvm_dev *, struct nvm_block *, |
473 | unsigned long); | |
04a8aa17 | 474 | typedef void (nvmm_mark_blk_fn)(struct nvm_dev *, struct ppa_addr, int); |
cd9e9808 | 475 | typedef struct nvm_lun *(nvmm_get_lun_fn)(struct nvm_dev *, int); |
da1e2849 WT |
476 | typedef int (nvmm_reserve_lun)(struct nvm_dev *, int); |
477 | typedef void (nvmm_release_lun)(struct nvm_dev *, int); | |
2fde0e48 | 478 | typedef void (nvmm_lun_info_print_fn)(struct nvm_dev *); |
cd9e9808 | 479 | |
4c9dacb8 WT |
480 | typedef int (nvmm_get_area_fn)(struct nvm_dev *, sector_t *, sector_t); |
481 | typedef void (nvmm_put_area_fn)(struct nvm_dev *, sector_t); | |
482 | ||
cd9e9808 MB |
483 | struct nvmm_type { |
484 | const char *name; | |
485 | unsigned int version[3]; | |
486 | ||
487 | nvmm_register_fn *register_mgr; | |
488 | nvmm_unregister_fn *unregister_mgr; | |
489 | ||
b76eb20b MB |
490 | nvmm_create_tgt_fn *create_tgt; |
491 | nvmm_remove_tgt_fn *remove_tgt; | |
492 | ||
cd9e9808 MB |
493 | /* Block administration callbacks */ |
494 | nvmm_get_blk_fn *get_blk; | |
495 | nvmm_put_blk_fn *put_blk; | |
496 | nvmm_open_blk_fn *open_blk; | |
497 | nvmm_close_blk_fn *close_blk; | |
498 | nvmm_flush_blk_fn *flush_blk; | |
499 | ||
500 | nvmm_submit_io_fn *submit_io; | |
cd9e9808 MB |
501 | nvmm_erase_blk_fn *erase_blk; |
502 | ||
04a8aa17 MB |
503 | /* Bad block mgmt */ |
504 | nvmm_mark_blk_fn *mark_blk; | |
505 | ||
cd9e9808 MB |
506 | /* Configuration management */ |
507 | nvmm_get_lun_fn *get_lun; | |
da1e2849 WT |
508 | nvmm_reserve_lun *reserve_lun; |
509 | nvmm_release_lun *release_lun; | |
cd9e9808 MB |
510 | |
511 | /* Statistics */ | |
2fde0e48 | 512 | nvmm_lun_info_print_fn *lun_info_print; |
4c9dacb8 WT |
513 | |
514 | nvmm_get_area_fn *get_area; | |
515 | nvmm_put_area_fn *put_area; | |
516 | ||
cd9e9808 MB |
517 | struct list_head list; |
518 | }; | |
519 | ||
520 | extern int nvm_register_mgr(struct nvmm_type *); | |
521 | extern void nvm_unregister_mgr(struct nvmm_type *); | |
522 | ||
523 | extern struct nvm_block *nvm_get_blk(struct nvm_dev *, struct nvm_lun *, | |
524 | unsigned long); | |
525 | extern void nvm_put_blk(struct nvm_dev *, struct nvm_block *); | |
526 | ||
527 | extern int nvm_register(struct request_queue *, char *, | |
528 | struct nvm_dev_ops *); | |
529 | extern void nvm_unregister(char *); | |
530 | ||
529435e8 JG |
531 | void nvm_mark_blk(struct nvm_dev *dev, struct ppa_addr ppa, int type); |
532 | ||
cd9e9808 | 533 | extern int nvm_submit_io(struct nvm_dev *, struct nvm_rq *); |
069368e9 MB |
534 | extern void nvm_generic_to_addr_mode(struct nvm_dev *, struct nvm_rq *); |
535 | extern void nvm_addr_to_generic_mode(struct nvm_dev *, struct nvm_rq *); | |
abd805ec | 536 | extern int nvm_set_rqd_ppalist(struct nvm_dev *, struct nvm_rq *, |
8680f165 | 537 | const struct ppa_addr *, int, int); |
abd805ec | 538 | extern void nvm_free_rqd_ppalist(struct nvm_dev *, struct nvm_rq *); |
81e681d3 | 539 | extern int nvm_erase_ppa(struct nvm_dev *, struct ppa_addr *, int); |
cd9e9808 | 540 | extern int nvm_erase_blk(struct nvm_dev *, struct nvm_block *); |
91276162 | 541 | extern void nvm_end_io(struct nvm_rq *, int); |
09719b62 MB |
542 | extern int nvm_submit_ppa(struct nvm_dev *, struct ppa_addr *, int, int, int, |
543 | void *, int); | |
1145e635 MB |
544 | extern int nvm_submit_ppa_list(struct nvm_dev *, struct ppa_addr *, int, int, |
545 | int, void *, int); | |
22e8c976 | 546 | extern int nvm_bb_tbl_fold(struct nvm_dev *, u8 *, int); |
e11903f5 | 547 | extern int nvm_get_bb_tbl(struct nvm_dev *, struct ppa_addr, u8 *); |
e3eb3799 MB |
548 | |
549 | /* sysblk.c */ | |
550 | #define NVM_SYSBLK_MAGIC 0x4E564D53 /* "NVMS" */ | |
551 | ||
552 | /* system block on disk representation */ | |
553 | struct nvm_system_block { | |
554 | __be32 magic; /* magic signature */ | |
555 | __be32 seqnr; /* sequence number */ | |
556 | __be32 erase_cnt; /* erase count */ | |
557 | __be16 version; /* version number */ | |
558 | u8 mmtype[NVM_MMTYPE_LEN]; /* media manager name */ | |
559 | __be64 fs_ppa; /* PPA for media manager | |
560 | * superblock */ | |
561 | }; | |
562 | ||
563 | extern int nvm_get_sysblock(struct nvm_dev *, struct nvm_sb_info *); | |
564 | extern int nvm_update_sysblock(struct nvm_dev *, struct nvm_sb_info *); | |
565 | extern int nvm_init_sysblock(struct nvm_dev *, struct nvm_sb_info *); | |
8b4970c4 MB |
566 | |
567 | extern int nvm_dev_factory(struct nvm_dev *, int flags); | |
5136061c MB |
568 | |
569 | #define nvm_for_each_lun_ppa(dev, ppa, chid, lunid) \ | |
570 | for ((chid) = 0, (ppa).ppa = 0; (chid) < (dev)->nr_chnls; \ | |
571 | (chid)++, (ppa).g.ch = (chid)) \ | |
572 | for ((lunid) = 0; (lunid) < (dev)->luns_per_chnl; \ | |
573 | (lunid)++, (ppa).g.lun = (lunid)) | |
574 | ||
cd9e9808 MB |
575 | #else /* CONFIG_NVM */ |
576 | struct nvm_dev_ops; | |
577 | ||
578 | static inline int nvm_register(struct request_queue *q, char *disk_name, | |
579 | struct nvm_dev_ops *ops) | |
580 | { | |
581 | return -EINVAL; | |
582 | } | |
583 | static inline void nvm_unregister(char *disk_name) {} | |
584 | #endif /* CONFIG_NVM */ | |
585 | #endif /* LIGHTNVM.H */ |