mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 15:49:17 +07:00
1145046983
The specification was changed to reflect a multi-value bad block table. Instead of bit-based bad block table, the bad block table now allows eight bad block categories. Currently four are defined: * Factory bad blocks * Grown bad blocks * Device-side reserved blocks * Host-side reserved blocks The factory and grown bad blocks are the regular bad blocks. The reserved blocks are either for internal use or external use. In particular, the device-side reserved blocks allows the host to bootstrap from a limited number of flash blocks. Reducing the flash blocks to scan upon super block initialization. Support for both get bad block table and set bad block table is added. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
|
|
* Copyright: Matias Bjorling <mb@bjorling.me>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License version
|
|
* 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#ifndef GENNVM_H_
|
|
#define GENNVM_H_
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/vmalloc.h>
|
|
|
|
#include <linux/lightnvm.h>
|
|
|
|
struct gen_lun {
|
|
struct nvm_lun vlun;
|
|
|
|
int reserved_blocks;
|
|
/* lun block lists */
|
|
struct list_head used_list; /* In-use blocks */
|
|
struct list_head free_list; /* Not used blocks i.e. released
|
|
* and ready for use
|
|
*/
|
|
struct list_head bb_list; /* Bad blocks. Mutually exclusive with
|
|
* free_list and used_list
|
|
*/
|
|
};
|
|
|
|
struct gen_nvm {
|
|
struct nvm_dev *dev;
|
|
|
|
int nr_luns;
|
|
struct gen_lun *luns;
|
|
};
|
|
|
|
#define gennvm_for_each_lun(bm, lun, i) \
|
|
for ((i) = 0, lun = &(bm)->luns[0]; \
|
|
(i) < (bm)->nr_luns; (i)++, lun = &(bm)->luns[(i)])
|
|
|
|
#endif /* GENNVM_H_ */
|