[linux-block.git] / drivers / md / dm-vdo / status-codes.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2023 Red Hat
 */

#ifndef VDO_STATUS_CODES_H
#define VDO_STATUS_CODES_H

#include "errors.h"

enum {
	UDS_ERRORS_BLOCK_SIZE = UDS_ERROR_CODE_BLOCK_END - UDS_ERROR_CODE_BASE,
	VDO_ERRORS_BLOCK_START = UDS_ERROR_CODE_BLOCK_END,
	VDO_ERRORS_BLOCK_END = VDO_ERRORS_BLOCK_START + UDS_ERRORS_BLOCK_SIZE,
};

/* VDO-specific status codes. */
enum vdo_status_codes {
	/* base of all VDO errors */
	VDO_STATUS_CODE_BASE = VDO_ERRORS_BLOCK_START,
	/* we haven't written this yet */
	VDO_NOT_IMPLEMENTED = VDO_STATUS_CODE_BASE,
	/* input out of range */
	VDO_OUT_OF_RANGE,
	/* an invalid reference count would result */
	VDO_REF_COUNT_INVALID,
	/* a free block could not be allocated */
	VDO_NO_SPACE,
	/* improper or missing configuration option */
	VDO_BAD_CONFIGURATION,
	/* prior operation still in progress */
	VDO_COMPONENT_BUSY,
	/* page contents incorrect or corrupt data */
	VDO_BAD_PAGE,
	/* unsupported version of some component */
	VDO_UNSUPPORTED_VERSION,
	/* component id mismatch in decoder */
	VDO_INCORRECT_COMPONENT,
	/* parameters have conflicting values */
	VDO_PARAMETER_MISMATCH,
	/* no partition exists with a given id */
	VDO_UNKNOWN_PARTITION,
	/* a partition already exists with a given id */
	VDO_PARTITION_EXISTS,
	/* physical block growth of too few blocks */
	VDO_INCREMENT_TOO_SMALL,
	/* incorrect checksum */
	VDO_CHECKSUM_MISMATCH,
	/* a lock is held incorrectly */
	VDO_LOCK_ERROR,
	/* the VDO is in read-only mode */
	VDO_READ_ONLY,
	/* the VDO is shutting down */
	VDO_SHUTTING_DOWN,
	/* the recovery journal has corrupt entries */
	VDO_CORRUPT_JOURNAL,
	/* exceeds maximum number of slabs supported */
	VDO_TOO_MANY_SLABS,
	/* a compressed block fragment is invalid */
	VDO_INVALID_FRAGMENT,
	/* action is unsupported while rebuilding */
	VDO_RETRY_AFTER_REBUILD,
	/* a block map entry is invalid */
	VDO_BAD_MAPPING,
	/* bio_add_page failed */
	VDO_BIO_CREATION_FAILED,
	/* bad magic number */
	VDO_BAD_MAGIC,
	/* bad nonce */
	VDO_BAD_NONCE,
	/* sequence number overflow */
	VDO_JOURNAL_OVERFLOW,
	/* the VDO is not in a state to perform an admin operation */
	VDO_INVALID_ADMIN_STATE,
	/* failure adding a sysfs node */
	VDO_CANT_ADD_SYSFS_NODE,
	/* one more than last error code */
	VDO_STATUS_CODE_LAST,
	VDO_STATUS_CODE_BLOCK_END = VDO_ERRORS_BLOCK_END
};

extern const struct error_info vdo_status_list[];

int vdo_register_status_codes(void);

int vdo_status_to_errno(int error);

#endif /* VDO_STATUS_CODES_H */
Commit	Line	Data
4fcb4290 MS	1	/* SPDX-License-Identifier: GPL-2.0-only */
	2	/*
	3	* Copyright 2023 Red Hat
	4	*/
	5
	6	#ifndef VDO_STATUS_CODES_H
	7	#define VDO_STATUS_CODES_H
	8
	9	#include "errors.h"
	10
	11	enum {
ee8f6ec1 MS	12	UDS_ERRORS_BLOCK_SIZE = UDS_ERROR_CODE_BLOCK_END - UDS_ERROR_CODE_BASE,
	13	VDO_ERRORS_BLOCK_START = UDS_ERROR_CODE_BLOCK_END,
	14	VDO_ERRORS_BLOCK_END = VDO_ERRORS_BLOCK_START + UDS_ERRORS_BLOCK_SIZE,
4fcb4290 MS	15	};
	16
	17	/* VDO-specific status codes. */
	18	enum vdo_status_codes {
4fcb4290	19	/* base of all VDO errors */
ee8f6ec1	20	VDO_STATUS_CODE_BASE = VDO_ERRORS_BLOCK_START,
4fcb4290 MS	21	/* we haven't written this yet */
	22	VDO_NOT_IMPLEMENTED = VDO_STATUS_CODE_BASE,
	23	/* input out of range */
	24	VDO_OUT_OF_RANGE,
	25	/* an invalid reference count would result */
	26	VDO_REF_COUNT_INVALID,
	27	/* a free block could not be allocated */
	28	VDO_NO_SPACE,
4fcb4290 MS	29	/* improper or missing configuration option */
4fcb4290 MS	30	VDO_BAD_CONFIGURATION,
4fcb4290 MS	31	/* prior operation still in progress */
	32	VDO_COMPONENT_BUSY,
	33	/* page contents incorrect or corrupt data */
	34	VDO_BAD_PAGE,
	35	/* unsupported version of some component */
	36	VDO_UNSUPPORTED_VERSION,
	37	/* component id mismatch in decoder */
	38	VDO_INCORRECT_COMPONENT,
	39	/* parameters have conflicting values */
	40	VDO_PARAMETER_MISMATCH,
4fcb4290 MS	41	/* no partition exists with a given id */
	42	VDO_UNKNOWN_PARTITION,
	43	/* a partition already exists with a given id */
	44	VDO_PARTITION_EXISTS,
4fcb4290 MS	45	/* physical block growth of too few blocks */
	46	VDO_INCREMENT_TOO_SMALL,
	47	/* incorrect checksum */
	48	VDO_CHECKSUM_MISMATCH,
4fcb4290 MS	49	/* a lock is held incorrectly */
	50	VDO_LOCK_ERROR,
	51	/* the VDO is in read-only mode */
	52	VDO_READ_ONLY,
	53	/* the VDO is shutting down */
	54	VDO_SHUTTING_DOWN,
	55	/* the recovery journal has corrupt entries */
	56	VDO_CORRUPT_JOURNAL,
	57	/* exceeds maximum number of slabs supported */
	58	VDO_TOO_MANY_SLABS,
	59	/* a compressed block fragment is invalid */
	60	VDO_INVALID_FRAGMENT,
	61	/* action is unsupported while rebuilding */
	62	VDO_RETRY_AFTER_REBUILD,
4fcb4290 MS	63	/* a block map entry is invalid */
4fcb4290 MS	64	VDO_BAD_MAPPING,
4fcb4290 MS	65	/* bio_add_page failed */
	66	VDO_BIO_CREATION_FAILED,
	67	/* bad magic number */
	68	VDO_BAD_MAGIC,
	69	/* bad nonce */
	70	VDO_BAD_NONCE,
	71	/* sequence number overflow */
	72	VDO_JOURNAL_OVERFLOW,
	73	/* the VDO is not in a state to perform an admin operation */
	74	VDO_INVALID_ADMIN_STATE,
	75	/* failure adding a sysfs node */
	76	VDO_CANT_ADD_SYSFS_NODE,
	77	/* one more than last error code */
	78	VDO_STATUS_CODE_LAST,
ee8f6ec1	79	VDO_STATUS_CODE_BLOCK_END = VDO_ERRORS_BLOCK_END
4fcb4290 MS	80	};
	81
	82	extern const struct error_info vdo_status_list[];
	83
	84	int vdo_register_status_codes(void);
	85
f7c1c2e0	86	int vdo_status_to_errno(int error);
4fcb4290 MS	87
4fcb4290 MS	88	#endif /* VDO_STATUS_CODES_H */