X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Flinux%2Fobd_class.h;h=639d221d4fe16ed1672a6ae343696d6dfe0c4e5e;hp=200e45b446a420d30a71e8e2a41ccdbafe8b6da3;hb=5267b98fdebd222dd16beb9bd464841dcffda324;hpb=9937b22dc3b00aa886cb9e0c7c7a2b71083f03af diff --git a/lustre/include/linux/obd_class.h b/lustre/include/linux/obd_class.h index 200e45b..639d221 100644 --- a/lustre/include/linux/obd_class.h +++ b/lustre/include/linux/obd_class.h @@ -1,66 +1,108 @@ -#ifndef __LINUX_SIM_OBD_H -#define __LINUX_SIM_OBD_H +#ifndef __LINUX_CLASS_OBD_H +#define __LINUX_CLASS_OBD_H #include #include +#include +#include -#include +#include +#include /* #include */ +#include +#include -#define OBD_PSDEV_MAJOR 120 -#define MAX_OBD_DEVICES 2 -extern struct obd_device obd_dev[MAX_OBD_DEVICES]; +#define OBD_PSDEV_MAJOR 186 +#define MAX_OBD_DEVICES 8 +#define MAX_MULTI 16 -struct obd_conn_info { - unsigned int conn_id; /* handle */ +typedef unsigned long objid; +typedef struct inode obdattr; +#if 0 +struct obdattr { + objid oa_id; + umode_t oa_mode; + nlink_t oa_nlink; + uid_t oa_uid; + gid_t oa_gid; + off_t oa_size; + time_t oa_atime; + time_t oa_mtime; + time_t oa_ctime; + unsigned long oa_blksize; + unsigned long oa_blocks; + char oa_data[116]; + struct obd_ops *oa_op; }; -struct obd_type { - struct list_head typ_chain; - struct obd_ops *typ_ops; - char *typ_name; - int typ_refcnt; -}; +#endif + +extern struct obd_device obd_dev[MAX_OBD_DEVICES]; + + + + #define OBD_ATTACHED 0x1 #define OBD_SET_UP 0x2 +struct obd_conn { + struct obd_device *oc_dev; + unsigned int oc_id; +}; + /* corresponds to one of the obdx */ struct obd_device { struct obd_type *obd_type; int obd_minor; int obd_flags; int obd_refcnt; + int obd_multi_count; + struct obd_conn obd_multi_conn[MAX_MULTI]; + unsigned int obd_gen_last_id; + unsigned long obd_gen_prealloc_quota; + struct list_head obd_gen_clients; union { - struct sim_obd sim; + struct ext2_obd ext2; + struct raid1_obd raid1; + struct snap_obd snap; + struct rpc_obd rpc; /* struct fc_obd fc; */ } u; }; struct obd_ops { int (*o_attach)(struct obd_device *, int len, void *); + int (*o_detach)(struct obd_device *); int (*o_format)(struct obd_device *, int len, void *); int (*o_partition)(struct obd_device *, int len, void *); - int (*o_connect)(struct obd_device *, struct obd_conn_info *info); - int (*o_disconnect)(unsigned int conn_id); + int (*o_connect)(struct obd_conn *conn); + int (*o_disconnect)(struct obd_conn *); int (*o_setup) (struct obd_device *dev, int len, void *data); int (*o_cleanup)(struct obd_device *dev); - int (*o_setattr)(unsigned int conn_id, unsigned long id, struct inode *iattr); - int (*o_getattr)(unsigned int conn_id, unsigned long id, struct inode *iattr); - int (*o_statfs)(unsigned int conn_id, struct statfs *statfs); - int (*o_create)(struct obd_device *, int prealloc_ino, int *er); - int (*o_destroy)(unsigned int conn_id, unsigned long ino); - unsigned long (*o_read)(unsigned int conn_id, unsigned long ino, char *buf, unsigned long count, loff_t offset, int *err); - unsigned long (*o_read2)(unsigned int conn_id, unsigned long ino, char *buf, unsigned long count, loff_t offset, int *err); - unsigned long (*o_write)(unsigned int conn_id, unsigned long ino, char *buf, unsigned long count, loff_t offset, int *err); - int (*o_brw)(int rw, int conn, int objectid, struct page *page, int create); - long (*o_preallocate)(unsigned int conn_id, int req, long inodes[32], int *err); - void (*o_cleanup_device)(int dev); - int (*o_get_info)(unsigned int conn_id, int keylen, void *key, int *vallen, void **val); - int (*o_set_info)(unsigned int conn_id, int keylen, void *key, int vallen, void *val); + int (*o_setattr)(struct obd_conn *, obdattr *oa); + int (*o_getattr)(struct obd_conn *, obdattr *oa); + int (*o_statfs)(struct obd_conn *, struct statfs *statfs); + int (*o_create)(struct obd_conn *, int prealloc_ino, int *er); + int (*o_destroy)(struct obd_conn *, obdattr *oa); + int (*o_read)(struct obd_conn *, obdattr *ino, char *buf, unsigned long *count, loff_t offset); + int (*o_read2)(struct obd_conn *, obdattr *oa, char *buf, unsigned long *count, loff_t offset); + int (*o_write)(struct obd_conn *, obdattr *oa, char *buf, unsigned long *count, loff_t offset); + int (*o_brw)(int rw, struct obd_conn * conn, obdattr *obj, struct page *page, int create); + int (*o_preallocate)(struct obd_conn *, unsigned long *req, long inodes[32]); + int (*o_get_info)(struct obd_conn *, int keylen, void *key, int *vallen, void **val); + int (*o_set_info)(struct obd_conn *, int keylen, void *key, int vallen, void *val); + int (*o_migrate)(struct obd_conn *, obdattr *src, obdattr *dst); + int (*o_copy)(struct obd_conn *dev, obdattr *source, obdattr *target); + int (*o_iocontrol)(int cmd, struct obd_conn *, int len, void *karg, void *uarg); + int (*o_iterate)(struct obd_conn *, int (*)(objid, void *), objid, void *); + }; +#define OBT(dev) dev->obd_type->typ_ops +#define OBP(dev,op) dev->obd_type->typ_ops->o_ ## op + int obd_register_type(struct obd_ops *ops, char *nm); int obd_unregister_type(char *nm); @@ -72,15 +114,30 @@ struct obd_client { struct list_head cli_prealloc_inodes; }; + struct obd_prealloc_inode { struct list_head obd_prealloc_chain; unsigned long inode; }; +/* generic operations shared by various OBD types */ +int gen_connect (struct obd_conn *conn); +int gen_disconnect(struct obd_conn *conn); +int gen_multi_setup(struct obd_device *obddev, int len, void *data); +int gen_multi_cleanup(struct obd_device *obddev); +int gen_multi_attach(struct obd_device *obddev, int len, void *data); +struct obd_client *gen_client(struct obd_conn *); +int gen_multi_detach(struct obd_device *obddev); +int gen_cleanup(struct obd_device *obddev); +int gen_copy_data(struct obd_conn *, obdattr *source, obdattr *target); + + + /* * ioctl commands */ -struct oic_attach { +struct oic_generic { + int att_connid; int att_typelen; void *att_type; int att_datalen; @@ -94,19 +151,32 @@ struct oic_prealloc_s { * of succesfully preallocated inodes */ long inodes[32]; /* actual inode numbers */ }; -struct oic_attr_s { + +struct oic_create_s { unsigned int conn_id; - unsigned long inode; + unsigned long prealloc; +}; +struct oic_attr_s { + unsigned int conn_id; + unsigned long ino; struct iattr iattr; }; + +struct ioc_mv_s { + unsigned int conn_id; + objid src; + objid tgt; +}; + struct oic_rw_s { unsigned int conn_id; - unsigned long inode; + unsigned long id; char * buf; unsigned long count; loff_t offset; }; + struct oic_partition { int partition; unsigned int size; @@ -114,8 +184,8 @@ struct oic_partition { #define OBD_IOC_CREATE _IOR ('f', 3, long) -#define OBD_IOC_SETUP_OBDDEV _IOW ('f', 4, long) -#define OBD_IOC_CLEANUP_OBDDEV _IO ('f', 5 ) +#define OBD_IOC_SETUP _IOW ('f', 4, long) +#define OBD_IOC_CLEANUP _IO ('f', 5 ) #define OBD_IOC_DESTROY _IOW ('f', 6, long) #define OBD_IOC_PREALLOCATE _IOWR('f', 7, long) #define OBD_IOC_DEC_USE_COUNT _IO ('f', 8 ) @@ -131,6 +201,9 @@ struct oic_partition { #define OBD_IOC_FORMAT _IOWR('f', 18, long) #define OBD_IOC_PARTITION _IOWR('f', 19, long) #define OBD_IOC_ATTACH _IOWR('f', 20, long) +#define OBD_IOC_DETACH _IOWR('f', 21, long) +#define OBD_IOC_COPY _IOWR('f', 22, long) +#define OBD_IOC_MIGR _IOWR('f', 23, long) #define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 32 ) @@ -139,5 +212,150 @@ struct oic_partition { extern void obd_sysctl_init (void); extern void obd_sysctl_clean (void); +#define CHKCONN(conn) do { if (!gen_client(conn)) {\ + printk("%s %d invalid client %u\n", __FILE__, __LINE__, \ + conn->oc_id);\ + return -EINVAL; }} while (0) + + +/* support routines */ +static __inline__ obdattr *obd_empty_oa(void) +{ + obdattr *res = NULL; + OBD_ALLOC(res, obdattr *, sizeof(*res)); + memset(res, 0, sizeof (*res)); + return res; +} + +static __inline__ void obd_free_oa(obdattr *oa) +{ + if ( !oa ) + return; + OBD_FREE(oa,sizeof(*oa)); +} + + + +static __inline__ obdattr *obd_oa_fromid(struct obd_conn *conn, objid id) +{ + obdattr *res = NULL; + + OBD_ALLOC(res, obdattr *, sizeof(*res)); + if ( !res ) { + EXIT; + return NULL; + } + memset(res, 0, sizeof(*res)); + res->i_ino = id; + if (conn->oc_dev->obd_type->typ_ops->o_getattr(conn, res)) { + OBD_FREE(res, sizeof(*res)); + EXIT; + return NULL; + } + EXIT; + return res; +} + +#define OBD_MD_NO (1UL) /* negates meaning of all flags */ +#define OBD_MD_ALL (OBD_MD_NO) /* passing NO with no other flags == ALL */ +#define OBD_MD_FLMODE (1UL<<1) +#define OBD_MD_FLUID (1UL<<2) +#define OBD_MD_FLGID (1UL<<3) +#define OBD_MD_FLSIZE (1UL<<4) +#define OBD_MD_FLATIME (1UL<<5) +#define OBD_MD_FLMTIME (1UL<<6) +#define OBD_MD_FLCTIME (1UL<<7) +#define OBD_MD_FLFLAGS (1UL<<8) +#define OBD_MD_FLBLOCKS (1UL<<9) +#define OBD_MD_FLOBDMD (1UL<<10) + + +static __inline__ void obdo_cpy_md(obdattr *dst, obdattr *src, int mask) +{ + /* If the OBD_MD_NO flag is set, then we copy all EXCEPT those + * fields given by the flags. The default is to copy the field + * given by the flags. + */ + if (mask & OBD_MD_NO) + mask = ~mask; + + CDEBUG(D_INODE, "flags %x\n", mask); + if ( mask & OBD_MD_FLMODE ) + dst->i_mode = src->i_mode; + if ( mask & OBD_MD_FLUID ) + dst->i_uid = src->i_uid; + if ( mask & OBD_MD_FLGID ) + dst->i_gid = src->i_gid; + if ( mask & OBD_MD_FLSIZE ) + dst->i_size = src->i_size; + if ( mask & OBD_MD_FLATIME ) + dst->i_atime = src->i_atime; + if ( mask & OBD_MD_FLMTIME ) + dst->i_mtime = src->i_mtime; + if ( mask & OBD_MD_FLCTIME ) + dst->i_ctime = src->i_ctime; + if ( mask & OBD_MD_FLFLAGS ) + dst->i_flags = src->i_flags; + /* allocation of space */ + if ( mask & OBD_MD_FLBLOCKS ) + dst->i_blocks = src->i_blocks; + if ( mask & OBD_MD_FLOBDMD && src->i_blocks == 0 ) { + CDEBUG(D_IOCTL, "copying inline data: ino %ld\n", dst->i_ino); + memcpy(&dst->u.ext2_i.i_data, &src->u.ext2_i.i_data, + sizeof(src->u.ext2_i.i_data)); + } else { + CDEBUG(D_INODE, "XXXX cpy_obdmd: ino %ld iblocks not 0!\n", + src->i_ino); + } +} + + +static __inline__ int obdo_cmp_md(obdattr *dst, obdattr *src, int mask) +{ + int res = 1; + + /* If the OBD_MD_NO flag is set, then we copy all EXCEPT those + * fields given by the flags. The default is to copy the field + * given by the flags. + */ + if (mask & OBD_MD_NO) + mask = ~mask; + + if ( mask & OBD_MD_FLMODE ) + res = (res && (dst->i_mode == src->i_mode)); + if ( mask & OBD_MD_FLUID ) + res = (res && (dst->i_uid == src->i_uid)); + if ( mask & OBD_MD_FLGID ) + res = (res && (dst->i_gid == src->i_gid)); + if ( mask & OBD_MD_FLSIZE ) + res = (res && (dst->i_size == src->i_size)); + if ( mask & OBD_MD_FLATIME ) + res = (res && (dst->i_atime == src->i_atime)); + if ( mask & OBD_MD_FLMTIME ) + res = (res && (dst->i_mtime == src->i_mtime)); + if ( mask & OBD_MD_FLCTIME ) + res = (res && (dst->i_ctime == src->i_ctime)); + if ( mask & OBD_MD_FLFLAGS ) + res = (res && (dst->i_flags == src->i_flags)); + /* allocation of space */ + if ( mask & OBD_MD_FLBLOCKS ) + res = (res && (dst->i_blocks == src->i_blocks)); + return res; +} + + +static __inline__ void obd_cpy_appmd(obdattr *dst, obdattr *src) +{ + dst->i_mode = src->i_mode; + dst->i_uid = src->i_uid; + dst->i_gid = src->i_gid; + dst->i_size = src->i_size; + dst->i_atime = src->i_atime; + dst->i_mtime = src->i_mtime; + dst->i_ctime = src->i_ctime; + dst->i_flags = src->i_flags; + /* allocation of space */ + dst->i_blocks = src->i_blocks; +} -#endif /* __LINUX_SIM_OBD_H */ +#endif /* __LINUX_CLASS_OBD_H */