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1 | /* |
2 | * Copyright: Matias Bjorling <mb@bjorling.me> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License version | |
6 | * 2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | */ | |
14 | ||
15 | #ifndef GENNVM_H_ | |
16 | #define GENNVM_H_ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/vmalloc.h> | |
20 | ||
21 | #include <linux/lightnvm.h> | |
22 | ||
23 | struct gen_lun { | |
24 | struct nvm_lun vlun; | |
25 | ||
26 | int reserved_blocks; | |
27 | /* lun block lists */ | |
28 | struct list_head used_list; /* In-use blocks */ | |
29 | struct list_head free_list; /* Not used blocks i.e. released | |
30 | * and ready for use | |
31 | */ | |
32 | struct list_head bb_list; /* Bad blocks. Mutually exclusive with | |
33 | * free_list and used_list | |
34 | */ | |
35 | }; | |
36 | ||
5e60edb7 | 37 | struct gen_dev { |
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38 | struct nvm_dev *dev; |
39 | ||
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40 | int nr_luns; |
41 | struct gen_lun *luns; | |
4c9dacb8 | 42 | struct list_head area_list; |
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43 | |
44 | struct mutex lock; | |
45 | struct list_head targets; | |
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46 | }; |
47 | ||
5e60edb7 | 48 | struct gen_area { |
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49 | struct list_head list; |
50 | sector_t begin; | |
51 | sector_t end; /* end is excluded */ | |
52 | }; | |
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53 | |
54 | #define gen_for_each_lun(bm, lun, i) \ | |
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55 | for ((i) = 0, lun = &(bm)->luns[0]; \ |
56 | (i) < (bm)->nr_luns; (i)++, lun = &(bm)->luns[(i)]) | |
57 | ||
58 | #endif /* GENNVM_H_ */ |