Loading Documentation/ABI/stable/sysfs-class-ubi 0 → 100644 +212 −0 Original line number Original line Diff line number Diff line What: /sys/class/ubi/ Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The ubi/ class sub-directory belongs to the UBI subsystem and provides general UBI information, per-UBI device information and per-UBI volume information. What: /sys/class/ubi/version Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: This file contains version of the latest supported UBI on-media format. Currently it is 1, and there is no plan to change this. However, if in the future UBI needs on-flash format changes which cannot be done in a compatible manner, a new format version will be added. So this is a mechanism for possible future backward-compatible (but forward-incompatible) improvements. What: /sys/class/ubiX/ Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The /sys/class/ubi0, /sys/class/ubi1, etc directories describe UBI devices (UBI device 0, 1, etc). They contain general UBI device information and per UBI volume information (each UBI device may have many UBI volumes) What: /sys/class/ubi/ubiX/avail_eraseblocks Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Amount of available logical eraseblock. For example, one may create a new UBI volume which has this amount of logical eraseblocks. What: /sys/class/ubi/ubiX/bad_peb_count Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Count of bad physical eraseblocks on the underlying MTD device. What: /sys/class/ubi/ubiX/bgt_enabled Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Contains ASCII "0\n" if the UBI background thread is disabled, and ASCII "1\n" if it is enabled. What: /sys/class/ubi/ubiX/dev Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Major and minor numbers of the character device corresponding to this UBI device (in <major>:<minor> format). What: /sys/class/ubi/ubiX/eraseblock_size Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Maximum logical eraseblock size this UBI device may provide. UBI volumes may have smaller logical eraseblock size because of their alignment. What: /sys/class/ubi/ubiX/max_ec Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Maximum physical eraseblock erase counter value. What: /sys/class/ubi/ubiX/max_vol_count Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Maximum number of volumes which this UBI device may have. What: /sys/class/ubi/ubiX/min_io_size Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Minimum input/output unit size. All the I/O may only be done in fractions of the contained number. What: /sys/class/ubi/ubiX/mtd_num Date: January 2008 KernelVersion: 2.6.25 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Number of the underlying MTD device. What: /sys/class/ubi/ubiX/reserved_for_bad Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Number of physical eraseblocks reserved for bad block handling. What: /sys/class/ubi/ubiX/total_eraseblocks Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Total number of good (not marked as bad) physical eraseblocks on the underlying MTD device. What: /sys/class/ubi/ubiX/volumes_count Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Count of volumes on this UBI device. What: /sys/class/ubi/ubiX/ubiX_Y/ Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The /sys/class/ubi/ubiX/ubiX_0/, /sys/class/ubi/ubiX/ubiX_1/, etc directories describe UBI volumes on UBI device X (volumes 0, 1, etc). What: /sys/class/ubi/ubiX/ubiX_Y/alignment Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Volume alignment - the value the logical eraseblock size of this volume has to be aligned on. For example, 2048 means that logical eraseblock size is multiple of 2048. In other words, volume logical eraseblock size is UBI device logical eraseblock size aligned to the alignment value. What: /sys/class/ubi/ubiX/ubiX_Y/corrupted Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Contains ASCII "0\n" if the UBI volume is OK, and ASCII "1\n" if it is corrupted (e.g., due to an interrupted volume update). What: /sys/class/ubi/ubiX/ubiX_Y/data_bytes Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The amount of data this volume contains. This value makes sense only for static volumes, and for dynamic volume it equivalent to the total volume size in bytes. What: /sys/class/ubi/ubiX/ubiX_Y/dev Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Major and minor numbers of the character device corresponding to this UBI volume (in <major>:<minor> format). What: /sys/class/ubi/ubiX/ubiX_Y/name Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Volume name. What: /sys/class/ubi/ubiX/ubiX_Y/reserved_ebs Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Count of physical eraseblock reserved for this volume. Equivalent to the volume size in logical eraseblocks. What: /sys/class/ubi/ubiX/ubiX_Y/type Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Volume type. Contains ASCII "dynamic\n" for dynamic volumes and "static\n" for static volumes. What: /sys/class/ubi/ubiX/ubiX_Y/upd_marker Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Contains ASCII "0\n" if the update marker is not set for this volume, and "1\n" if it is set. The update marker is set when volume update starts, and cleaned when it ends. So the presence of the update marker indicates that the volume is being updated at the moment of the update was interrupted. The later may be checked using the "corrupted" sysfs file. What: /sys/class/ubi/ubiX/ubiX_Y/usable_eb_size Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Logical eraseblock size of this volume. Equivalent to logical eraseblock size of the device aligned on the volume alignment value. drivers/mtd/ubi/Kconfig +7 −2 Original line number Original line Diff line number Diff line Loading @@ -24,8 +24,13 @@ config MTD_UBI_WL_THRESHOLD erase counter value and the lowest erase counter value of eraseblocks erase counter value and the lowest erase counter value of eraseblocks of UBI devices. When this threshold is exceeded, UBI starts performing of UBI devices. When this threshold is exceeded, UBI starts performing wear leveling by means of moving data from eraseblock with low erase wear leveling by means of moving data from eraseblock with low erase counter to eraseblocks with high erase counter. Leave the default counter to eraseblocks with high erase counter. value if unsure. The default value should be OK for SLC NAND flashes, NOR flashes and other flashes which have eraseblock life-cycle 100000 or more. However, in case of MLC NAND flashes which typically have eraseblock life-cycle less then 10000, the threshold should be lessened (e.g., to 128 or 256, although it does not have to be power of 2). config MTD_UBI_BEB_RESERVE config MTD_UBI_BEB_RESERVE int "Percentage of reserved eraseblocks for bad eraseblocks handling" int "Percentage of reserved eraseblocks for bad eraseblocks handling" Loading drivers/mtd/ubi/build.c +18 −19 Original line number Original line Diff line number Diff line Loading @@ -606,8 +606,16 @@ static int io_init(struct ubi_device *ubi) ubi->ro_mode = 1; ubi->ro_mode = 1; } } dbg_msg("leb_size %d", ubi->leb_size); ubi_msg("physical eraseblock size: %d bytes (%d KiB)", dbg_msg("ro_mode %d", ubi->ro_mode); ubi->peb_size, ubi->peb_size >> 10); ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size); ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size); if (ubi->hdrs_min_io_size != ubi->min_io_size) ubi_msg("sub-page size: %d", ubi->hdrs_min_io_size); ubi_msg("VID header offset: %d (aligned %d)", ubi->vid_hdr_offset, ubi->vid_hdr_aloffset); ubi_msg("data offset: %d", ubi->leb_start); /* /* * Note, ideally, we have to initialize ubi->bad_peb_count here. But * Note, ideally, we have to initialize ubi->bad_peb_count here. But Loading Loading @@ -804,15 +812,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) ubi_msg("attached mtd%d to ubi%d", mtd->index, ubi_num); ubi_msg("attached mtd%d to ubi%d", mtd->index, ubi_num); ubi_msg("MTD device name: \"%s\"", mtd->name); ubi_msg("MTD device name: \"%s\"", mtd->name); ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20); ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20); ubi_msg("physical eraseblock size: %d bytes (%d KiB)", ubi->peb_size, ubi->peb_size >> 10); ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size); ubi_msg("number of good PEBs: %d", ubi->good_peb_count); ubi_msg("number of good PEBs: %d", ubi->good_peb_count); ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count); ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count); ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size); ubi_msg("VID header offset: %d (aligned %d)", ubi->vid_hdr_offset, ubi->vid_hdr_aloffset); ubi_msg("data offset: %d", ubi->leb_start); ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots); ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots); ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD); ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD); ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT); ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT); Loading Loading @@ -950,8 +951,7 @@ static int __init ubi_init(void) BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64); BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64); if (mtd_devs > UBI_MAX_DEVICES) { if (mtd_devs > UBI_MAX_DEVICES) { printk(KERN_ERR "UBI error: too many MTD devices, " ubi_err("too many MTD devices, maximum is %d", UBI_MAX_DEVICES); "maximum is %d\n", UBI_MAX_DEVICES); return -EINVAL; return -EINVAL; } } Loading @@ -959,19 +959,19 @@ static int __init ubi_init(void) ubi_class = class_create(THIS_MODULE, UBI_NAME_STR); ubi_class = class_create(THIS_MODULE, UBI_NAME_STR); if (IS_ERR(ubi_class)) { if (IS_ERR(ubi_class)) { err = PTR_ERR(ubi_class); err = PTR_ERR(ubi_class); printk(KERN_ERR "UBI error: cannot create UBI class\n"); ubi_err("cannot create UBI class"); goto out; goto out; } } err = class_create_file(ubi_class, &ubi_version); err = class_create_file(ubi_class, &ubi_version); if (err) { if (err) { printk(KERN_ERR "UBI error: cannot create sysfs file\n"); ubi_err("cannot create sysfs file"); goto out_class; goto out_class; } } err = misc_register(&ubi_ctrl_cdev); err = misc_register(&ubi_ctrl_cdev); if (err) { if (err) { printk(KERN_ERR "UBI error: cannot register device\n"); ubi_err("cannot register device"); goto out_version; goto out_version; } } Loading Loading @@ -1000,8 +1000,7 @@ static int __init ubi_init(void) mutex_unlock(&ubi_devices_mutex); mutex_unlock(&ubi_devices_mutex); if (err < 0) { if (err < 0) { put_mtd_device(mtd); put_mtd_device(mtd); printk(KERN_ERR "UBI error: cannot attach mtd%d\n", ubi_err("cannot attach mtd%d", mtd->index); mtd->index); goto out_detach; goto out_detach; } } } } Loading @@ -1023,7 +1022,7 @@ static int __init ubi_init(void) out_class: out_class: class_destroy(ubi_class); class_destroy(ubi_class); out: out: printk(KERN_ERR "UBI error: cannot initialize UBI, error %d\n", err); ubi_err("UBI error: cannot initialize UBI, error %d", err); return err; return err; } } module_init(ubi_init); module_init(ubi_init); Loading drivers/mtd/ubi/debug.h +2 −0 Original line number Original line Diff line number Diff line Loading @@ -99,8 +99,10 @@ void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req); #ifdef CONFIG_MTD_UBI_DEBUG_MSG_BLD #ifdef CONFIG_MTD_UBI_DEBUG_MSG_BLD /* Initialization and build messages */ /* Initialization and build messages */ #define dbg_bld(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #define dbg_bld(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #define UBI_IO_DEBUG 1 #else #else #define dbg_bld(fmt, ...) ({}) #define dbg_bld(fmt, ...) ({}) #define UBI_IO_DEBUG 0 #endif #endif #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS Loading drivers/mtd/ubi/gluebi.c +3 −2 Original line number Original line Diff line number Diff line Loading @@ -291,11 +291,12 @@ int ubi_create_gluebi(struct ubi_device *ubi, struct ubi_volume *vol) /* /* * In case of dynamic volume, MTD device size is just volume size. In * In case of dynamic volume, MTD device size is just volume size. In * case of a static volume the size is equivalent to the amount of data * case of a static volume the size is equivalent to the amount of data * bytes, which is zero at this moment and will be changed after volume * bytes. * update. */ */ if (vol->vol_type == UBI_DYNAMIC_VOLUME) if (vol->vol_type == UBI_DYNAMIC_VOLUME) mtd->size = vol->usable_leb_size * vol->reserved_pebs; mtd->size = vol->usable_leb_size * vol->reserved_pebs; else mtd->size = vol->used_bytes; if (add_mtd_device(mtd)) { if (add_mtd_device(mtd)) { ubi_err("cannot not add MTD device\n"); ubi_err("cannot not add MTD device\n"); Loading Loading
Documentation/ABI/stable/sysfs-class-ubi 0 → 100644 +212 −0 Original line number Original line Diff line number Diff line What: /sys/class/ubi/ Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The ubi/ class sub-directory belongs to the UBI subsystem and provides general UBI information, per-UBI device information and per-UBI volume information. What: /sys/class/ubi/version Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: This file contains version of the latest supported UBI on-media format. Currently it is 1, and there is no plan to change this. However, if in the future UBI needs on-flash format changes which cannot be done in a compatible manner, a new format version will be added. So this is a mechanism for possible future backward-compatible (but forward-incompatible) improvements. What: /sys/class/ubiX/ Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The /sys/class/ubi0, /sys/class/ubi1, etc directories describe UBI devices (UBI device 0, 1, etc). They contain general UBI device information and per UBI volume information (each UBI device may have many UBI volumes) What: /sys/class/ubi/ubiX/avail_eraseblocks Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Amount of available logical eraseblock. For example, one may create a new UBI volume which has this amount of logical eraseblocks. What: /sys/class/ubi/ubiX/bad_peb_count Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Count of bad physical eraseblocks on the underlying MTD device. What: /sys/class/ubi/ubiX/bgt_enabled Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Contains ASCII "0\n" if the UBI background thread is disabled, and ASCII "1\n" if it is enabled. What: /sys/class/ubi/ubiX/dev Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Major and minor numbers of the character device corresponding to this UBI device (in <major>:<minor> format). What: /sys/class/ubi/ubiX/eraseblock_size Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Maximum logical eraseblock size this UBI device may provide. UBI volumes may have smaller logical eraseblock size because of their alignment. What: /sys/class/ubi/ubiX/max_ec Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Maximum physical eraseblock erase counter value. What: /sys/class/ubi/ubiX/max_vol_count Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Maximum number of volumes which this UBI device may have. What: /sys/class/ubi/ubiX/min_io_size Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Minimum input/output unit size. All the I/O may only be done in fractions of the contained number. What: /sys/class/ubi/ubiX/mtd_num Date: January 2008 KernelVersion: 2.6.25 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Number of the underlying MTD device. What: /sys/class/ubi/ubiX/reserved_for_bad Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Number of physical eraseblocks reserved for bad block handling. What: /sys/class/ubi/ubiX/total_eraseblocks Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Total number of good (not marked as bad) physical eraseblocks on the underlying MTD device. What: /sys/class/ubi/ubiX/volumes_count Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Count of volumes on this UBI device. What: /sys/class/ubi/ubiX/ubiX_Y/ Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The /sys/class/ubi/ubiX/ubiX_0/, /sys/class/ubi/ubiX/ubiX_1/, etc directories describe UBI volumes on UBI device X (volumes 0, 1, etc). What: /sys/class/ubi/ubiX/ubiX_Y/alignment Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Volume alignment - the value the logical eraseblock size of this volume has to be aligned on. For example, 2048 means that logical eraseblock size is multiple of 2048. In other words, volume logical eraseblock size is UBI device logical eraseblock size aligned to the alignment value. What: /sys/class/ubi/ubiX/ubiX_Y/corrupted Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Contains ASCII "0\n" if the UBI volume is OK, and ASCII "1\n" if it is corrupted (e.g., due to an interrupted volume update). What: /sys/class/ubi/ubiX/ubiX_Y/data_bytes Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: The amount of data this volume contains. This value makes sense only for static volumes, and for dynamic volume it equivalent to the total volume size in bytes. What: /sys/class/ubi/ubiX/ubiX_Y/dev Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Major and minor numbers of the character device corresponding to this UBI volume (in <major>:<minor> format). What: /sys/class/ubi/ubiX/ubiX_Y/name Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Volume name. What: /sys/class/ubi/ubiX/ubiX_Y/reserved_ebs Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Count of physical eraseblock reserved for this volume. Equivalent to the volume size in logical eraseblocks. What: /sys/class/ubi/ubiX/ubiX_Y/type Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Volume type. Contains ASCII "dynamic\n" for dynamic volumes and "static\n" for static volumes. What: /sys/class/ubi/ubiX/ubiX_Y/upd_marker Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Contains ASCII "0\n" if the update marker is not set for this volume, and "1\n" if it is set. The update marker is set when volume update starts, and cleaned when it ends. So the presence of the update marker indicates that the volume is being updated at the moment of the update was interrupted. The later may be checked using the "corrupted" sysfs file. What: /sys/class/ubi/ubiX/ubiX_Y/usable_eb_size Date: July 2006 KernelVersion: 2.6.22 Contact: Artem Bityutskiy <dedekind@infradead.org> Description: Logical eraseblock size of this volume. Equivalent to logical eraseblock size of the device aligned on the volume alignment value.
drivers/mtd/ubi/Kconfig +7 −2 Original line number Original line Diff line number Diff line Loading @@ -24,8 +24,13 @@ config MTD_UBI_WL_THRESHOLD erase counter value and the lowest erase counter value of eraseblocks erase counter value and the lowest erase counter value of eraseblocks of UBI devices. When this threshold is exceeded, UBI starts performing of UBI devices. When this threshold is exceeded, UBI starts performing wear leveling by means of moving data from eraseblock with low erase wear leveling by means of moving data from eraseblock with low erase counter to eraseblocks with high erase counter. Leave the default counter to eraseblocks with high erase counter. value if unsure. The default value should be OK for SLC NAND flashes, NOR flashes and other flashes which have eraseblock life-cycle 100000 or more. However, in case of MLC NAND flashes which typically have eraseblock life-cycle less then 10000, the threshold should be lessened (e.g., to 128 or 256, although it does not have to be power of 2). config MTD_UBI_BEB_RESERVE config MTD_UBI_BEB_RESERVE int "Percentage of reserved eraseblocks for bad eraseblocks handling" int "Percentage of reserved eraseblocks for bad eraseblocks handling" Loading
drivers/mtd/ubi/build.c +18 −19 Original line number Original line Diff line number Diff line Loading @@ -606,8 +606,16 @@ static int io_init(struct ubi_device *ubi) ubi->ro_mode = 1; ubi->ro_mode = 1; } } dbg_msg("leb_size %d", ubi->leb_size); ubi_msg("physical eraseblock size: %d bytes (%d KiB)", dbg_msg("ro_mode %d", ubi->ro_mode); ubi->peb_size, ubi->peb_size >> 10); ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size); ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size); if (ubi->hdrs_min_io_size != ubi->min_io_size) ubi_msg("sub-page size: %d", ubi->hdrs_min_io_size); ubi_msg("VID header offset: %d (aligned %d)", ubi->vid_hdr_offset, ubi->vid_hdr_aloffset); ubi_msg("data offset: %d", ubi->leb_start); /* /* * Note, ideally, we have to initialize ubi->bad_peb_count here. But * Note, ideally, we have to initialize ubi->bad_peb_count here. But Loading Loading @@ -804,15 +812,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) ubi_msg("attached mtd%d to ubi%d", mtd->index, ubi_num); ubi_msg("attached mtd%d to ubi%d", mtd->index, ubi_num); ubi_msg("MTD device name: \"%s\"", mtd->name); ubi_msg("MTD device name: \"%s\"", mtd->name); ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20); ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20); ubi_msg("physical eraseblock size: %d bytes (%d KiB)", ubi->peb_size, ubi->peb_size >> 10); ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size); ubi_msg("number of good PEBs: %d", ubi->good_peb_count); ubi_msg("number of good PEBs: %d", ubi->good_peb_count); ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count); ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count); ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size); ubi_msg("VID header offset: %d (aligned %d)", ubi->vid_hdr_offset, ubi->vid_hdr_aloffset); ubi_msg("data offset: %d", ubi->leb_start); ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots); ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots); ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD); ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD); ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT); ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT); Loading Loading @@ -950,8 +951,7 @@ static int __init ubi_init(void) BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64); BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64); if (mtd_devs > UBI_MAX_DEVICES) { if (mtd_devs > UBI_MAX_DEVICES) { printk(KERN_ERR "UBI error: too many MTD devices, " ubi_err("too many MTD devices, maximum is %d", UBI_MAX_DEVICES); "maximum is %d\n", UBI_MAX_DEVICES); return -EINVAL; return -EINVAL; } } Loading @@ -959,19 +959,19 @@ static int __init ubi_init(void) ubi_class = class_create(THIS_MODULE, UBI_NAME_STR); ubi_class = class_create(THIS_MODULE, UBI_NAME_STR); if (IS_ERR(ubi_class)) { if (IS_ERR(ubi_class)) { err = PTR_ERR(ubi_class); err = PTR_ERR(ubi_class); printk(KERN_ERR "UBI error: cannot create UBI class\n"); ubi_err("cannot create UBI class"); goto out; goto out; } } err = class_create_file(ubi_class, &ubi_version); err = class_create_file(ubi_class, &ubi_version); if (err) { if (err) { printk(KERN_ERR "UBI error: cannot create sysfs file\n"); ubi_err("cannot create sysfs file"); goto out_class; goto out_class; } } err = misc_register(&ubi_ctrl_cdev); err = misc_register(&ubi_ctrl_cdev); if (err) { if (err) { printk(KERN_ERR "UBI error: cannot register device\n"); ubi_err("cannot register device"); goto out_version; goto out_version; } } Loading Loading @@ -1000,8 +1000,7 @@ static int __init ubi_init(void) mutex_unlock(&ubi_devices_mutex); mutex_unlock(&ubi_devices_mutex); if (err < 0) { if (err < 0) { put_mtd_device(mtd); put_mtd_device(mtd); printk(KERN_ERR "UBI error: cannot attach mtd%d\n", ubi_err("cannot attach mtd%d", mtd->index); mtd->index); goto out_detach; goto out_detach; } } } } Loading @@ -1023,7 +1022,7 @@ static int __init ubi_init(void) out_class: out_class: class_destroy(ubi_class); class_destroy(ubi_class); out: out: printk(KERN_ERR "UBI error: cannot initialize UBI, error %d\n", err); ubi_err("UBI error: cannot initialize UBI, error %d", err); return err; return err; } } module_init(ubi_init); module_init(ubi_init); Loading
drivers/mtd/ubi/debug.h +2 −0 Original line number Original line Diff line number Diff line Loading @@ -99,8 +99,10 @@ void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req); #ifdef CONFIG_MTD_UBI_DEBUG_MSG_BLD #ifdef CONFIG_MTD_UBI_DEBUG_MSG_BLD /* Initialization and build messages */ /* Initialization and build messages */ #define dbg_bld(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #define dbg_bld(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #define UBI_IO_DEBUG 1 #else #else #define dbg_bld(fmt, ...) ({}) #define dbg_bld(fmt, ...) ({}) #define UBI_IO_DEBUG 0 #endif #endif #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS Loading
drivers/mtd/ubi/gluebi.c +3 −2 Original line number Original line Diff line number Diff line Loading @@ -291,11 +291,12 @@ int ubi_create_gluebi(struct ubi_device *ubi, struct ubi_volume *vol) /* /* * In case of dynamic volume, MTD device size is just volume size. In * In case of dynamic volume, MTD device size is just volume size. In * case of a static volume the size is equivalent to the amount of data * case of a static volume the size is equivalent to the amount of data * bytes, which is zero at this moment and will be changed after volume * bytes. * update. */ */ if (vol->vol_type == UBI_DYNAMIC_VOLUME) if (vol->vol_type == UBI_DYNAMIC_VOLUME) mtd->size = vol->usable_leb_size * vol->reserved_pebs; mtd->size = vol->usable_leb_size * vol->reserved_pebs; else mtd->size = vol->used_bytes; if (add_mtd_device(mtd)) { if (add_mtd_device(mtd)) { ubi_err("cannot not add MTD device\n"); ubi_err("cannot not add MTD device\n"); Loading
