/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) International Business Machines Corp., 2006 * * Author: Artem Bityutskiy (Битюцкий Артём) */ #ifndef __UBI_DEBUG_H__ #define __UBI_DEBUG_H__ void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len); void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr); void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr); #include <linux/random.h> #define ubi_assert(expr) … #define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a) … #define ubi_dbg_msg(type, fmt, ...) … /* General debugging messages */ #define dbg_gen(fmt, ...) … /* Messages from the eraseblock association sub-system */ #define dbg_eba(fmt, ...) … /* Messages from the wear-leveling sub-system */ #define dbg_wl(fmt, ...) … /* Messages from the input/output sub-system */ #define dbg_io(fmt, ...) … /* Initialization and build messages */ #define dbg_bld(fmt, ...) … void ubi_dump_vol_info(const struct ubi_volume *vol); void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx); void ubi_dump_av(const struct ubi_ainf_volume *av); void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type); void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req); int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len); int ubi_debugfs_init(void); void ubi_debugfs_exit(void); int ubi_debugfs_init_dev(struct ubi_device *ubi); void ubi_debugfs_exit_dev(struct ubi_device *ubi); /** * The following function is a legacy implementation of UBI fault-injection * hook. When using more powerful fault injection capabilities, the legacy * fault injection interface should be retained. */ int ubi_dbg_power_cut(struct ubi_device *ubi, int caller); static inline int ubi_dbg_bitflip(const struct ubi_device *ubi) { … } static inline int ubi_dbg_write_failure(const struct ubi_device *ubi) { … } static inline int ubi_dbg_erase_failure(const struct ubi_device *ubi) { … } /** * MASK_XXX: Mask for emulate_failures in ubi_debug_info.The mask is used to * precisely control the type and process of fault injection. */ /* Emulate a power cut when writing EC/VID header */ #define MASK_POWER_CUT_EC … #define MASK_POWER_CUT_VID … /* Emulate a power cut when writing data*/ #define MASK_POWER_CUT_DATA … /* Emulate bit-flips */ #define MASK_BITFLIPS … /* Emulate ecc error */ #define MASK_ECCERR … /* Emulates -EIO during data read */ #define MASK_READ_FAILURE … #define MASK_READ_FAILURE_EC … #define MASK_READ_FAILURE_VID … /* Emulates -EIO during data write */ #define MASK_WRITE_FAILURE … /* Emulates -EIO during erase a PEB*/ #define MASK_ERASE_FAILURE … /* Return UBI_IO_FF when reading EC/VID header */ #define MASK_IO_FF_EC … #define MASK_IO_FF_VID … /* Return UBI_IO_FF_BITFLIPS when reading EC/VID header */ #define MASK_IO_FF_BITFLIPS_EC … #define MASK_IO_FF_BITFLIPS_VID … /* Return UBI_IO_BAD_HDR when reading EC/VID header */ #define MASK_BAD_HDR_EC … #define MASK_BAD_HDR_VID … /* Return UBI_IO_BAD_HDR_EBADMSG when reading EC/VID header */ #define MASK_BAD_HDR_EBADMSG_EC … #define MASK_BAD_HDR_EBADMSG_VID … #ifdef CONFIG_MTD_UBI_FAULT_INJECTION extern bool should_fail_eccerr(void); extern bool should_fail_bitflips(void); extern bool should_fail_read_failure(void); extern bool should_fail_write_failure(void); extern bool should_fail_erase_failure(void); extern bool should_fail_power_cut(void); extern bool should_fail_io_ff(void); extern bool should_fail_io_ff_bitflips(void); extern bool should_fail_bad_hdr(void); extern bool should_fail_bad_hdr_ebadmsg(void); static inline bool ubi_dbg_fail_bitflip(const struct ubi_device *ubi) { … } static inline bool ubi_dbg_fail_write(const struct ubi_device *ubi) { … } static inline bool ubi_dbg_fail_erase(const struct ubi_device *ubi) { … } static inline bool ubi_dbg_fail_power_cut(const struct ubi_device *ubi, unsigned int caller) { … } static inline bool ubi_dbg_fail_read(const struct ubi_device *ubi, unsigned int caller) { … } static inline bool ubi_dbg_fail_eccerr(const struct ubi_device *ubi) { … } static inline bool ubi_dbg_fail_ff(const struct ubi_device *ubi, unsigned int caller) { … } static inline bool ubi_dbg_fail_ff_bitflips(const struct ubi_device *ubi, unsigned int caller) { … } static inline bool ubi_dbg_fail_bad_hdr(const struct ubi_device *ubi, unsigned int caller) { … } static inline bool ubi_dbg_fail_bad_hdr_ebadmsg(const struct ubi_device *ubi, unsigned int caller) { … } #else /* CONFIG_MTD_UBI_FAULT_INJECTION */ #define ubi_dbg_fail_bitflip … #define ubi_dbg_fail_write … #define ubi_dbg_fail_erase … #define ubi_dbg_fail_power_cut … #define ubi_dbg_fail_read … #define ubi_dbg_fail_eccerr … #define ubi_dbg_fail_ff … #define ubi_dbg_fail_ff_bitflips … #define ubi_dbg_fail_bad_hdr … #define ubi_dbg_fail_bad_hdr_ebadmsg … #endif /** * ubi_dbg_is_power_cut - if it is time to emulate power cut. * @ubi: UBI device description object * * Returns true if power cut should be emulated, otherwise returns false. */ static inline bool ubi_dbg_is_power_cut(struct ubi_device *ubi, unsigned int caller) { … } /** * ubi_dbg_is_bitflip - if it is time to emulate a bit-flip. * @ubi: UBI device description object * * Returns true if a bit-flip should be emulated, otherwise returns false. */ static inline bool ubi_dbg_is_bitflip(const struct ubi_device *ubi) { … } /** * ubi_dbg_is_write_failure - if it is time to emulate a write failure. * @ubi: UBI device description object * * Returns true if a write failure should be emulated, otherwise returns * false. */ static inline bool ubi_dbg_is_write_failure(const struct ubi_device *ubi) { … } /** * ubi_dbg_is_erase_failure - if its time to emulate an erase failure. * @ubi: UBI device description object * * Returns true if an erase failure should be emulated, otherwise returns * false. */ static inline bool ubi_dbg_is_erase_failure(const struct ubi_device *ubi) { … } /** * ubi_dbg_is_eccerr - if it is time to emulate ECC error. * @ubi: UBI device description object * * Returns true if a ECC error should be emulated, otherwise returns false. */ static inline bool ubi_dbg_is_eccerr(const struct ubi_device *ubi) { … } /** * ubi_dbg_is_read_failure - if it is time to emulate a read failure. * @ubi: UBI device description object * * Returns true if a read failure should be emulated, otherwise returns * false. */ static inline bool ubi_dbg_is_read_failure(const struct ubi_device *ubi, unsigned int caller) { … } /** * ubi_dbg_is_ff - if it is time to emulate that read region is only 0xFF. * @ubi: UBI device description object * * Returns true if read region should be emulated 0xFF, otherwise * returns false. */ static inline bool ubi_dbg_is_ff(const struct ubi_device *ubi, unsigned int caller) { … } /** * ubi_dbg_is_ff_bitflips - if it is time to emulate that read region is only 0xFF * with error reported by the MTD driver * * @ubi: UBI device description object * * Returns true if read region should be emulated 0xFF and error * reported by the MTD driver, otherwise returns false. */ static inline bool ubi_dbg_is_ff_bitflips(const struct ubi_device *ubi, unsigned int caller) { … } /** * ubi_dbg_is_bad_hdr - if it is time to emulate a bad header * @ubi: UBI device description object * * Returns true if a bad header error should be emulated, otherwise * returns false. */ static inline bool ubi_dbg_is_bad_hdr(const struct ubi_device *ubi, unsigned int caller) { … } /** * ubi_dbg_is_bad_hdr_ebadmsg - if it is time to emulate a bad header with * ECC error. * * @ubi: UBI device description object * * Returns true if a bad header with ECC error should be emulated, otherwise * returns false. */ static inline bool ubi_dbg_is_bad_hdr_ebadmsg(const struct ubi_device *ubi, unsigned int caller) { … } /** * ubi_dbg_is_bgt_disabled - if the background thread is disabled. * @ubi: UBI device description object * * Returns non-zero if the UBI background thread is disabled for testing * purposes. */ static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi) { … } static inline int ubi_dbg_chk_io(const struct ubi_device *ubi) { … } static inline int ubi_dbg_chk_gen(const struct ubi_device *ubi) { … } static inline int ubi_dbg_chk_fastmap(const struct ubi_device *ubi) { … } static inline void ubi_enable_dbg_chk_fastmap(struct ubi_device *ubi) { … } #endif /* !__UBI_DEBUG_H__ */
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