X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=blobdiff_plain;f=mdadm.h;h=a9ae698d36a1b2e7fe07f7b8e15050387b4454cc;hp=f03454df7afc039dffc7372c0a1b029f1b0ab01b;hb=16c6fa807c1e43a1a12bbeb7668b4166d14b2cc8;hpb=5dd497eecbb7dc453e6e1353e0e77bb4faeaeb3f

diff --git a/mdadm.h b/mdadm.h
index f03454df..a9ae698d 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -71,12 +71,32 @@ char *strncpy(char *dest, const char *src, size_t n) __THROW;
 #include	"md_p.h"
 #include	"bitmap.h"
 
+#include <endian.h>
+/* #include "asm/byteorder.h" Redhat don't like this so... */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#  include <linux/byteorder/little_endian.h>
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#  include <linux/byteorder/big_endian.h>
+#elif __BYTE_ORDER == __PDP_ENDIAN
+#  include <linux/byteorder/pdp_endian.h>
+#else
+#  error "unknown endianness."
+#endif
+
+
+
 /* general information that might be extracted from a superblock */
 struct mdinfo {
 	mdu_array_info_t	array;
 	mdu_disk_info_t		disk;
 	__u64			events;
 	int			uuid[4];
+	char			name[33];
+	unsigned long long	data_offset;
+	unsigned long long	component_size;
+	int			reshape_active;
+	unsigned long long	reshape_progress;
+	int			new_level, delta_disks, new_layout, new_chunk;
 };
 
 #define Name "mdadm"
@@ -160,10 +180,62 @@ struct mdstat_ent {
 	struct mdstat_ent *next;
 };
 
-extern struct mdstat_ent *mdstat_read(int);
+extern struct mdstat_ent *mdstat_read(int hold, int start);
 extern void free_mdstat(struct mdstat_ent *ms);
 extern void mdstat_wait(int seconds);
 
+/* Data structure for holding info read from sysfs */
+struct sysdev {
+	char	name[20];
+	int	role;
+	int	major, minor;
+	unsigned long long offset, size;
+	int	state;
+	int	errors;
+	struct sysdev *next;
+};
+struct sysarray {
+	char	name[20];
+	struct sysdev *devs;
+	int	chunk;
+	unsigned long long component_size;
+	int	layout;
+	int	level;
+	int	spares;
+};
+/* various details can be requested */
+#define	GET_LEVEL	1
+#define	GET_LAYOUT	2
+#define	GET_COMPONENT	4
+#define	GET_CHUNK	8
+
+#define	GET_DEVS	1024 /* gets role, major, minor */
+#define	GET_OFFSET	2048
+#define	GET_SIZE	4096
+#define	GET_STATE	8192
+#define	GET_ERROR	16384
+
+/* If fd >= 0, get the array it is open on,
+ * else use devnum. >=0 -> major9. <0.....
+ */
+extern struct sysarray *sysfs_read(int fd, int devnum, unsigned long options);
+extern int sysfs_set_str(struct sysarray *sra, struct sysdev *dev,
+			 char *name, char *val);
+extern int sysfs_set_num(struct sysarray *sra, struct sysdev *dev,
+			 char *name, unsigned long long val);
+extern int sysfs_get_ll(struct sysarray *sra, struct sysdev *dev,
+			char *name, unsigned long long *val);
+
+
+extern int save_stripes(int *source, unsigned long long *offsets,
+			int raid_disks, int chunk_size, int level, int layout,
+			int nwrites, int *dest,
+			unsigned long long start, unsigned long long length);
+extern int restore_stripes(int *dest, unsigned long long *offsets,
+			   int raid_disks, int chunk_size, int level, int layout,
+			   int source, unsigned long long read_offset,
+			   unsigned long long start, unsigned long long length);
+
 #ifndef Sendmail
 #define Sendmail "/usr/lib/sendmail -t"
 #endif
@@ -174,7 +246,7 @@ extern char *map_num(mapping_t *map, int num);
 extern int map_name(mapping_t *map, char *name);
 extern mapping_t r5layout[], pers[], modes[], faultylayout[];
 
-extern char *map_dev(int major, int minor);
+extern char *map_dev(int major, int minor, int create);
 
 
 extern struct superswitch {
@@ -183,7 +255,7 @@ extern struct superswitch {
 	void (*detail_super)(void *sbv);
 	void (*brief_detail_super)(void *sbv);
 	void (*uuid_from_super)(int uuid[4], void *sbv);
-	void (*getinfo_super)(struct mdinfo *info, mddev_ident_t ident, void *sbv);
+	void (*getinfo_super)(struct mdinfo *info, void *sbv);
 	int (*update_super)(struct mdinfo *info, void *sbv, char *update, char *devname, int verbose);
 	__u64 (*event_super)(void *sbv);
 	int (*init_super)(struct supertype *st, void **sbp, mdu_array_info_t *info, unsigned long long size, char *name);
@@ -236,13 +308,18 @@ extern int Manage_reconfig(char *devname, int fd, int layout);
 extern int Manage_subdevs(char *devname, int fd,
 			  mddev_dev_t devlist, int verbose);
 extern int Grow_Add_device(char *devname, int fd, char *newdev);
-extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind);
+extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind, int force);
+extern int Grow_reshape(char *devname, int fd, int quiet, char *backup_file,
+			long long size,
+			int level, int layout, int chunksize, int raid_disks);
+extern int Grow_restart(struct supertype *st, struct mdinfo *info,
+			int *fdlist, int cnt, char *backup_file);
 
 
 extern int Assemble(struct supertype *st, char *mddev, int mdfd,
 		    mddev_ident_t ident,
 		    char *conffile,
-		    mddev_dev_t devlist,
+		    mddev_dev_t devlist, char *backup_file,
 		    int readonly, int runstop,
 		    char *update,
 		    int verbose, int force);
@@ -305,6 +382,7 @@ extern unsigned long calc_csum(void *super, int bytes);
 extern int enough(int level, int raid_disks, int layout,
 		   char *avail, int avail_disks);
 extern int ask(char *mesg);
+extern unsigned long long get_component_size(int fd);
 
 
 extern char *human_size(long long bytes);
@@ -352,3 +430,8 @@ extern int open_mddev(char *dev, int autof);
 #define makedev(M,m) (((M)<<8) | (m))
 #endif
 
+/* for raid5 */
+#define ALGORITHM_LEFT_ASYMMETRIC	0
+#define ALGORITHM_RIGHT_ASYMMETRIC	1
+#define ALGORITHM_LEFT_SYMMETRIC	2
+#define ALGORITHM_RIGHT_SYMMETRIC	3