forked from Minki/linux
48add0f5a6
The implementation for Open-Channel SSDs is divided into media management and targets. This patch implements a generic media manager for open-channel SSDs. After a media manager has been initialized, single or multiple targets can be instantiated with the media managed as the backend. Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
47 lines
1.2 KiB
C
47 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 {
|
|
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_ */
|