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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PSTORE_BLK_H_
#define __PSTORE_BLK_H_
#include <linux/types.h>
#include <linux/pstore.h>
#include <linux/pstore_zone.h>
/**
* struct pstore_device_info - back-end pstore/blk driver structure.
*
* @flags: Refer to macro starting with PSTORE_FLAGS defined in
* linux/pstore.h. It means what front-ends this device support.
* Zero means all backends for compatible.
* @zone: The struct pstore_zone_info details.
*
*/
struct pstore_device_info {
unsigned int flags;
struct pstore_zone_info zone;
};
int register_pstore_device(struct pstore_device_info *dev);
void unregister_pstore_device(struct pstore_device_info *dev);
/**
* struct pstore_blk_config - the pstore_blk backend configuration
*
* @device: Name of the desired block device
* @max_reason: Maximum kmsg dump reason to store to block device
* @kmsg_size: Total size of for kmsg dumps
* @pmsg_size: Total size of the pmsg storage area
* @console_size: Total size of the console storage area
* @ftrace_size: Total size for ftrace logging data (for all CPUs)
*/
struct pstore_blk_config {
char device[80];
enum kmsg_dump_reason max_reason;
unsigned long kmsg_size;
unsigned long pmsg_size;
unsigned long console_size;
unsigned long ftrace_size;
};
/**
* pstore_blk_get_config - get a copy of the pstore_blk backend configuration
*
* @info: The sturct pstore_blk_config to be filled in
*
* Failure returns negative error code, and success returns 0.
*/
int pstore_blk_get_config(struct pstore_blk_config *info);
#endif
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