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 37 struct gen_dev { 38 struct nvm_dev *dev; 39 40 int nr_luns; 41 struct gen_lun *luns; 42 struct list_head area_list; 43 44 struct mutex lock; 45 struct list_head targets; 46 }; 47 48 struct gen_area { 49 struct list_head list; 50 sector_t begin; 51 sector_t end; /* end is excluded */ 52 }; 53 54 #define gen_for_each_lun(bm, lun, i) \ 55 for ((i) = 0, lun = &(bm)->luns[0]; \ 56 (i) < (bm)->nr_luns; (i)++, lun = &(bm)->luns[(i)]) 57 58 #endif /* GENNVM_H_ */ 59