#include "md_u.h"
#include "md_p.h"
#include "bitmap.h"
+#include "msg.h"
#include <endian.h>
/* Redhat don't like to #include <asm/byteorder.h>, and
#define __le16_to_cpu(_x) (_x)
#define __le32_to_cpu(_x) (_x)
#define __le64_to_cpu(_x) (_x)
+
+#define __cpu_to_be16(_x) bswap_16(_x)
+#define __cpu_to_be32(_x) bswap_32(_x)
+#define __cpu_to_be64(_x) bswap_64(_x)
+#define __be16_to_cpu(_x) bswap_16(_x)
+#define __be32_to_cpu(_x) bswap_32(_x)
+#define __be64_to_cpu(_x) bswap_64(_x)
#elif BYTE_ORDER == BIG_ENDIAN
#define __cpu_to_le16(_x) bswap_16(_x)
#define __cpu_to_le32(_x) bswap_32(_x)
#define __le16_to_cpu(_x) bswap_16(_x)
#define __le32_to_cpu(_x) bswap_32(_x)
#define __le64_to_cpu(_x) bswap_64(_x)
+
+#define __cpu_to_be16(_x) (_x)
+#define __cpu_to_be32(_x) (_x)
+#define __cpu_to_be64(_x) (_x)
+#define __be16_to_cpu(_x) (_x)
+#define __be32_to_cpu(_x) (_x)
+#define __be64_to_cpu(_x) (_x)
#else
# error "unknown endianness."
#endif
int uuid[4];
char name[33];
unsigned long long data_offset;
- unsigned long long component_size;
+ unsigned long long component_size; /* same as array.size, except in
+ * sectors and up to 64bits.
+ */
int reshape_active;
unsigned long long reshape_progress;
+ unsigned long long resync_start;
int new_level, delta_disks, new_layout, new_chunk;
int errors;
int cache_size; /* size of raid456 stripe cache*/
int mismatch_cnt;
char text_version[50];
+ int container_member; /* for assembling external-metatdata arrays
+ * This is to be used internally by metadata
+ * handler only */
+
char sys_name[20];
struct mdinfo *devs;
struct mdinfo *next;
+
+ /* Device info for mdmon: */
+ int state_fd;
+ #define DS_FAULTY 1
+ #define DS_INSYNC 2
+ #define DS_WRITE_MOSTLY 4
+ #define DS_SPARE 8
+ #define DS_BLOCKED 16
+ #define DS_REMOVE 1024
+ int prev_state, curr_state, next_state;
+
};
struct createinfo {
char *pattern; /* U or up, _ for down */
int percent; /* -1 if no resync */
int resync; /* 1 if resync, 0 if recovery */
+ int devcnt;
+ int raid_disks;
+ int chunk_size;
+ char * metadata_version;
struct mdstat_ent *next;
};
extern struct mdstat_ent *mdstat_read(int hold, int start);
extern void free_mdstat(struct mdstat_ent *ms);
extern void mdstat_wait(int seconds);
+extern void mdstat_wait_fd(int fd, const sigset_t *sigmask);
extern int mddev_busy(int devnum);
struct map_ent {
struct map_ent *next;
int devnum;
- int major,minor;
+ char metadata[20];
int uuid[4];
char *path;
};
-extern int map_update(struct map_ent **mpp, int devnum, int major, int minor,
+extern int map_update(struct map_ent **mpp, int devnum, char *metadata,
int uuid[4], char *path);
extern struct map_ent *map_by_uuid(struct map_ent **map, int uuid[4]);
extern void map_read(struct map_ent **melp);
extern void map_delete(struct map_ent **mapp, int devnum);
extern void map_free(struct map_ent *map);
extern void map_add(struct map_ent **melp,
- int devnum, int major, int minor, int uuid[4], char *path);
+ int devnum, char *metadata, int uuid[4], char *path);
/* various details can be requested */
#define GET_LEVEL 1
#define GET_CACHE 16
#define GET_MISMATCH 32
#define GET_VERSION 64
+#define GET_DISKS 128
#define GET_DEVS 1024 /* gets role, major, minor */
#define GET_OFFSET 2048
/* If fd >= 0, get the array it is open on,
* else use devnum. >=0 -> major9. <0.....
*/
+extern int sysfs_open(int devnum, char *devname, char *attr);
extern void sysfs_free(struct mdinfo *sra);
extern struct mdinfo *sysfs_read(int fd, int devnum, unsigned long options);
extern int sysfs_set_str(struct mdinfo *sra, struct mdinfo *dev,
char *name, unsigned long long val);
extern int sysfs_get_ll(struct mdinfo *sra, struct mdinfo *dev,
char *name, unsigned long long *val);
+extern int sysfs_set_array(struct mdinfo *sra,
+ struct mdinfo *info);
+extern int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd);
+extern int sysfs_disk_to_sg(int fd);
+extern int sysfs_disk_to_scsi_id(int fd, __u32 *id);
extern int save_stripes(int *source, unsigned long long *offsets,
extern char *map_dev(int major, int minor, int create);
+struct active_array;
+struct metadata_update;
extern struct superswitch {
void (*examine_super)(struct supertype *st, char *homehost);
void (*export_detail_super)(struct supertype *st);
void (*uuid_from_super)(struct supertype *st, int uuid[4]);
void (*getinfo_super)(struct supertype *st, struct mdinfo *info);
+ void (*getinfo_super_n)(struct supertype *st, struct mdinfo *info);
int (*match_home)(struct supertype *st, char *homehost);
int (*update_super)(struct supertype *st, struct mdinfo *info,
char *update,
int (*init_super)(struct supertype *st, mdu_array_info_t *info,
unsigned long long size, char *name,
char *homehost, int *uuid);
- void (*add_to_super)(struct supertype *st, mdu_disk_info_t *dinfo);
+ void (*add_to_super)(struct supertype *st, mdu_disk_info_t *dinfo,
+ int fd, char *devname);
int (*store_super)(struct supertype *st, int fd);
- int (*write_init_super)(struct supertype *st, mdu_disk_info_t *dinfo,
- char *devname);
+ int (*write_init_super)(struct supertype *st);
int (*compare_super)(struct supertype *st, struct supertype *tst);
int (*load_super)(struct supertype *st, int fd, char *devname);
struct supertype * (*match_metadata_desc)(char *arg);
void (*locate_bitmap)(struct supertype *st, int fd);
int (*write_bitmap)(struct supertype *st, int fd);
void (*free_super)(struct supertype *st);
- int major;
+ int (*validate_geometry)(struct supertype *st, int level, int layout,
+ int raiddisks,
+ int chunk, unsigned long long size,
+ char *subdev, unsigned long long *freesize);
+
+ struct mdinfo *(*container_content)(struct supertype *st);
+
+/* for mdmon */
+ int (*open_new)(struct supertype *c, struct active_array *a,
+ char *inst);
+
+ /* Tell the metadata handler the current state of the array.
+ * This covers whether it is known to be consistent (no pending writes)
+ * when how far along a resync is known to have progressed
+ * (in a->resync_start).
+ * resync status is really irrelevant if the array is not consistent,
+ * but some metadata (DDF!) have a place to record the distinction.
+ */
+ void (*set_array_state)(struct active_array *a, int consistent);
+
+ /* When the state of a device might have changed, we call set_disk to
+ * tell the metadata what the current state is.
+ * Typically this happens on spare->in_sync and (spare|in_sync)->faulty
+ * transitions.
+ * set_disk might be called when the state of the particular disk has
+ * not in fact changed.
+ */
+ void (*set_disk)(struct active_array *a, int n, int state);
+ void (*sync_metadata)(struct supertype *st);
+ void (*process_update)(struct supertype *st,
+ struct metadata_update *update);
+
+ /* activate_spare will check if the array is degraded and, if it
+ * is, try to find some spare space in the container.
+ * On success, it add appropriate updates (For process_update) to
+ * to the 'updates' list and returns a list of 'mdinfo' identifying
+ * the device, or devices as there might be multiple missing
+ * devices and multiple spares available.
+ */
+ struct mdinfo *(*activate_spare)(struct active_array *a,
+ struct metadata_update **updates);
+
int swapuuid; /* true if uuid is bigending rather than hostendian */
-} super0, super1, *superlist[];
+ int external;
+} super0, super1, super_ddf, super_ddf_bvd, super_ddf_svd, *superlist[];
+
+extern struct superswitch super_imsm, super_imsm_volume;
struct supertype {
struct superswitch *ss;
int minor_version;
int max_devs;
+ int container_dev; /* devnum of container */
void *sb;
+ void *info;
+
+ /* extra stuff used by mdmon */
+ struct active_array *arrays;
+ int sock; /* listen to external programs */
+ int mgr_pipe[2]; /* communicate between threads */
+ int mon_pipe[2]; /* communicate between threads */
+ int devnum;
+ char *devname; /* e.g. md0. This appears in metadata_verison:
+ * external:/md0/12
+ */
+ int devcnt;
+ char *device_name; /* e.g. /dev/md/whatever */
+
+ struct mdinfo *devs;
+
};
+extern struct supertype supertype_container_member;
extern struct supertype *super_by_fd(int fd);
extern struct supertype *guess_super(int fd);
extern struct supertype *dup_super(struct supertype *st);
int period, int daemonise, int scan, int oneshot,
int dosyslog, int test, char *pidfile);
-extern int Kill(char *dev, int force, int quiet);
+extern int Kill(char *dev, int force, int quiet, int noexcl);
extern int Wait(char *dev);
extern int Incremental(char *devname, int verbose, int runstop,
struct supertype *st, char *homehost, int autof);
+extern int Incremental_container(struct supertype *st, char *devname,
+ int verbose, int runstop, int autof);
extern void RebuildMap(void);
extern int IncrementalScan(int verbose);
extern int get_mdp_major(void);
extern int dev_open(char *dev, int flags);
+extern int open_dev_excl(int devnum);
extern int is_standard(char *dev, int *nump);
extern int parse_auto(char *str, char *msg, int config);
extern int ask(char *mesg);
extern unsigned long long get_component_size(int fd);
extern void remove_partitions(int fd);
+extern unsigned long long calc_array_size(int level, int raid_disks, int layout,
+ int chunksize, unsigned long long devsize);
extern char *human_size(long long bytes);
extern int open_mddev(char *dev, int autof);
extern int open_mddev_devnum(char *devname, int devnum, char *name,
char *chosen_name, int parts);
+extern int open_container(int fd);
+
+extern int mdmon_running(int devnum);
+extern int signal_mdmon(int devnum);
+extern char *devnum2devname(int num);
+extern int fd2devnum(int fd);
+
+static inline int dev2major(int d)
+{
+ if (d >= 0)
+ return MD_MAJOR;
+ else
+ return get_mdp_major();
+}
+
+static inline int dev2minor(int d)
+{
+ if (d >= 0)
+ return d;
+ return (-1-d) << MdpMinorShift;
+}
#define LEVEL_MULTIPATH (-4)
#define LEVEL_LINEAR (-1)
#define LEVEL_FAULTY (-5)
+/* kernel module doesn't know about these */
+#define LEVEL_CONTAINER (-100)
+#define LEVEL_UNSUPPORTED (-200)
+
/* faulty stuff */
projects / thirdparty / mdadm.git / blobdiff