X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Finclude%2Flustre%2Flustre_user.h;h=36fbce94b54e2b74d344960c4c08e7d58ad95b4f;hp=8948c7fa1c538445280f9d30e9752046848fde2b;hb=d39b08def6512ee6ae883a0db62cebd808646208;hpb=cd40f5454d9fefcbdf0a2eb50dee78be5d19e72c diff --git a/lustre/include/lustre/lustre_user.h b/lustre/include/lustre/lustre_user.h index 8948c7f..36fbce9 100644 --- a/lustre/include/lustre/lustre_user.h +++ b/lustre/include/lustre/lustre_user.h @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -26,8 +24,10 @@ * GPL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2010, 2013, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -41,6 +41,14 @@ #ifndef _LUSTRE_USER_H #define _LUSTRE_USER_H +/** \defgroup lustreuser lustreuser + * + * @{ + */ + +#ifndef __KERNEL__ +#include +#endif #include #if defined(__linux__) #include @@ -88,7 +96,9 @@ struct obd_statfs { __u32 os_namelen; __u64 os_maxbytes; __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */ - __u32 os_spare1; + __u32 os_fprecreated; /* objs available now to the caller */ + /* used in QoS code to find preferred + * OSTs */ __u32 os_spare2; __u32 os_spare3; __u32 os_spare4; @@ -99,6 +109,89 @@ struct obd_statfs { __u32 os_spare9; }; +/** + * File IDentifier. + * + * FID is a cluster-wide unique identifier of a file or an object (stripe). + * FIDs are never reused. + **/ +struct lu_fid { + /** + * FID sequence. Sequence is a unit of migration: all files (objects) + * with FIDs from a given sequence are stored on the same server. + * Lustre should support 2^64 objects, so even if each sequence + * has only a single object we can still enumerate 2^64 objects. + **/ + __u64 f_seq; + /* FID number within sequence. */ + __u32 f_oid; + /** + * FID version, used to distinguish different versions (in the sense + * of snapshots, etc.) of the same file system object. Not currently + * used. + **/ + __u32 f_ver; +}; + +struct filter_fid { + struct lu_fid ff_parent; /* ff_parent.f_ver == file stripe number */ +}; + +/* keep this one for compatibility */ +struct filter_fid_old { + struct lu_fid ff_parent; + __u64 ff_objid; + __u64 ff_seq; +}; + +/* Userspace should treat lu_fid as opaque, and only use the following methods + * to print or parse them. Other functions (e.g. compare, swab) could be moved + * here from lustre_idl.h if needed. */ +typedef struct lu_fid lustre_fid; + +/** + * Following struct for object attributes, that will be kept inode's EA. + * Introduced in 2.0 release (please see b15993, for details) + * Added to all objects since Lustre 2.4 as contains self FID + */ +struct lustre_mdt_attrs { + /** + * Bitfield for supported data in this structure. From enum lma_compat. + * lma_self_fid and lma_flags are always available. + */ + __u32 lma_compat; + /** + * Per-file incompat feature list. Lustre version should support all + * flags set in this field. The supported feature mask is available in + * LMA_INCOMPAT_SUPP. + */ + __u32 lma_incompat; + /** FID of this inode */ + struct lu_fid lma_self_fid; +}; + +/** + * Prior to 2.4, the LMA structure also included SOM attributes which has since + * been moved to a dedicated xattr + * lma_flags was also removed because of lma_compat/incompat fields. + */ +#define LMA_OLD_SIZE (sizeof(struct lustre_mdt_attrs) + 5 * sizeof(__u64)) + +/** + * OST object IDentifier. + */ +struct ost_id { + union { + struct ostid { + __u64 oi_id; + __u64 oi_seq; + } oi; + struct lu_fid oi_fid; + }; +}; + +#define DOSTID LPX64":"LPU64 +#define POSTID(oi) ostid_seq(oi), ostid_id(oi) /* * The ioctl naming rules: @@ -110,33 +203,65 @@ struct obd_statfs { * *STRIPE* - set/get lov_user_md * *INFO - set/get lov_user_mds_data */ +/* see for ioctl numberss 101-150 */ #define LL_IOC_GETFLAGS _IOR ('f', 151, long) #define LL_IOC_SETFLAGS _IOW ('f', 152, long) #define LL_IOC_CLRFLAGS _IOW ('f', 153, long) +/* LL_IOC_LOV_SETSTRIPE: See also OBD_IOC_LOV_SETSTRIPE */ #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long) +/* LL_IOC_LOV_GETSTRIPE: See also OBD_IOC_LOV_GETSTRIPE */ #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long) +/* LL_IOC_LOV_SETEA: See also OBD_IOC_LOV_SETEA */ #define LL_IOC_LOV_SETEA _IOW ('f', 156, long) #define LL_IOC_RECREATE_OBJ _IOW ('f', 157, long) +#define LL_IOC_RECREATE_FID _IOW ('f', 157, struct lu_fid) #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long) #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long) +/* LL_IOC_QUOTACHECK: See also OBD_IOC_QUOTACHECK */ #define LL_IOC_QUOTACHECK _IOW ('f', 160, int) +/* LL_IOC_POLL_QUOTACHECK: See also OBD_IOC_POLL_QUOTACHECK */ #define LL_IOC_POLL_QUOTACHECK _IOR ('f', 161, struct if_quotacheck *) -#define LL_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl *) +/* LL_IOC_QUOTACTL: See also OBD_IOC_QUOTACTL */ +#define LL_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl) #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *) #define IOC_LOV_GETINFO _IOWR('f', 165, struct lov_user_mds_data *) #define LL_IOC_FLUSHCTX _IOW ('f', 166, long) #define LL_IOC_RMTACL _IOW ('f', 167, long) - #define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long) - #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long) #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long) -#define LL_IOC_LLOOP_INFO _IOWR('f', 171, long) +#define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid) #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long) #define LL_IOC_PATH2FID _IOR ('f', 173, long) - -#define LL_STATFS_MDC 1 -#define LL_STATFS_LOV 2 +#define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *) +#define LL_IOC_GET_MDTIDX _IOR ('f', 175, int) + +/* see for ioctl numbers 177-210 */ + +#define LL_IOC_HSM_STATE_GET _IOR('f', 211, struct hsm_user_state) +#define LL_IOC_HSM_STATE_SET _IOW('f', 212, struct hsm_state_set) +#define LL_IOC_HSM_CT_START _IOW('f', 213, struct lustre_kernelcomm) +#define LL_IOC_HSM_COPY_START _IOW('f', 214, struct hsm_copy *) +#define LL_IOC_HSM_COPY_END _IOW('f', 215, struct hsm_copy *) +#define LL_IOC_HSM_PROGRESS _IOW('f', 216, struct hsm_user_request) +#define LL_IOC_HSM_REQUEST _IOW('f', 217, struct hsm_user_request) +#define LL_IOC_DATA_VERSION _IOR('f', 218, struct ioc_data_version) +#define LL_IOC_LOV_SWAP_LAYOUTS _IOW('f', 219, \ + struct lustre_swap_layouts) +#define LL_IOC_HSM_ACTION _IOR('f', 220, \ + struct hsm_current_action) +/* see for ioctl numbers 221-232 */ + +#define LL_IOC_LMV_SETSTRIPE _IOWR('f', 240, struct lmv_user_md) +#define LL_IOC_LMV_GETSTRIPE _IOWR('f', 241, struct lmv_user_md) +#define LL_IOC_REMOVE_ENTRY _IOWR('f', 242, __u64) +#define LL_IOC_SET_LEASE _IOWR('f', 243, long) +#define LL_IOC_GET_LEASE _IO('f', 244) +#define LL_IOC_HSM_IMPORT _IOWR('f', 245, struct hsm_user_import) + +#define LL_STATFS_LMV 1 +#define LL_STATFS_LOV 2 +#define LL_STATFS_NODELAY 4 #define IOC_MDC_TYPE 'i' #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *) @@ -148,18 +273,32 @@ struct obd_statfs { #define LL_IOC_OBD_STATFS IOC_OBD_STATFS #define IOC_MDC_GETSTRIPE IOC_MDC_GETFILESTRIPE -#define O_LOV_DELAY_CREATE 0100000000 /* hopefully this does not conflict */ -#define LL_FILE_IGNORE_LOCK 0x00000001 -#define LL_FILE_GROUP_LOCKED 0x00000002 -#define LL_FILE_READAHEAD 0x00000004 -#define LL_FILE_RMTACL 0x00000008 +#define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */ + +/* Hopefully O_LOV_DELAY_CREATE does not conflict with standard O_xxx flags. + * Previously it was defined as 0100000000 and conflicts with FMODE_NONOTIFY + * which was added since kernel 2.6.36, so we redefine it as 020000000. + * To be compatible with old version's statically linked binary, finally we + * define it as (020000000 | 0100000000). + * */ +#define O_LOV_DELAY_CREATE 0120000000 + +#define LL_FILE_IGNORE_LOCK 0x00000001 +#define LL_FILE_GROUP_LOCKED 0x00000002 +#define LL_FILE_READAHEA 0x00000004 +#define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */ +#define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */ +#define LL_FILE_RMTACL 0x00000020 #define LOV_USER_MAGIC_V1 0x0BD10BD0 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1 #define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0 #define LOV_USER_MAGIC_V3 0x0BD30BD0 +#define LMV_MAGIC_V1 0x0CD10CD0 /*normal stripe lmv magic */ +#define LMV_USER_MAGIC 0x0CD20CD0 /*default lmv magic*/ + #define LOV_PATTERN_RAID0 0x001 #define LOV_PATTERN_RAID1 0x002 #define LOV_PATTERN_FIRST 0x100 @@ -167,38 +306,71 @@ struct obd_statfs { #define LOV_MAXPOOLNAME 16 #define LOV_POOLNAMEF "%.16s" +#define LOV_MIN_STRIPE_BITS 16 /* maximum PAGE_SIZE (ia64), power of 2 */ +#define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS) +#define LOV_MAX_STRIPE_COUNT_OLD 160 +/* This calculation is crafted so that input of 4096 will result in 160 + * which in turn is equal to old maximal stripe count. + * XXX: In fact this is too simpified for now, what it also need is to get + * ea_type argument to clearly know how much space each stripe consumes. + * + * The limit of 12 pages is somewhat arbitrary, but is a reasonably large + * allocation that is sufficient for the current generation of systems. + * + * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */ +#define LOV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */ +#define LOV_ALL_STRIPES 0xffff /* only valid for directories */ +#define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */ + #define lov_user_ost_data lov_user_ost_data_v1 struct lov_user_ost_data_v1 { /* per-stripe data structure */ - __u64 l_object_id; /* OST object ID */ - __u64 l_object_gr; /* OST object group (creating MDS number) */ - __u32 l_ost_gen; /* generation of this OST index */ - __u32 l_ost_idx; /* OST index in LOV */ + struct ost_id l_ost_oi; /* OST object ID */ + __u32 l_ost_gen; /* generation of this OST index */ + __u32 l_ost_idx; /* OST index in LOV */ } __attribute__((packed)); #define lov_user_md lov_user_md_v1 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */ - __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */ - __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ - __u64 lmm_object_id; /* LOV object ID */ - __u64 lmm_object_gr; /* LOV object group */ - __u32 lmm_stripe_size; /* size of stripe in bytes */ - __u16 lmm_stripe_count; /* num stripes in use for this object */ - __u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */ - struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */ -} __attribute__((packed)); + __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */ + __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ + struct ost_id lmm_oi; /* LOV object ID */ + __u32 lmm_stripe_size; /* size of stripe in bytes */ + __u16 lmm_stripe_count; /* num stripes in use for this object */ + union { + __u16 lmm_stripe_offset; /* starting stripe offset in + * lmm_objects, use when writing */ + __u16 lmm_layout_gen; /* layout generation number + * used when reading */ + }; + struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */ +} __attribute__((packed, __may_alias__)); struct lov_user_md_v3 { /* LOV EA user data (host-endian) */ - __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */ - __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ - __u64 lmm_object_id; /* LOV object ID */ - __u64 lmm_object_gr; /* LOV object group */ - __u32 lmm_stripe_size; /* size of stripe in bytes */ - __u16 lmm_stripe_count; /* num stripes in use for this object */ - __u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */ - char lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */ - struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */ + __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */ + __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ + struct ost_id lmm_oi; /* LOV object ID */ + __u32 lmm_stripe_size; /* size of stripe in bytes */ + __u16 lmm_stripe_count; /* num stripes in use for this object */ + union { + __u16 lmm_stripe_offset; /* starting stripe offset in + * lmm_objects, use when writing */ + __u16 lmm_layout_gen; /* layout generation number + * used when reading */ + }; + char lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */ + struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */ } __attribute__((packed)); +static inline __u32 lov_user_md_size(__u16 stripes, __u32 lmm_magic) +{ + if (lmm_magic == LOV_USER_MAGIC_V3) + return sizeof(struct lov_user_md_v3) + + stripes * sizeof(struct lov_user_ost_data_v1); + else + return sizeof(struct lov_user_md_v1) + + stripes * sizeof(struct lov_user_ost_data_v1); +} + /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to * use this. It is unsafe to #define those values in this header as it * is possible the application has already #included . */ @@ -215,9 +387,43 @@ struct lov_user_mds_data_v3 { } __attribute__((packed)); #endif +/* keep this to be the same size as lov_user_ost_data_v1 */ +struct lmv_user_mds_data { + struct lu_fid lum_fid; + __u32 lum_padding; + __u32 lum_mds; +}; + +/* lum_type */ +enum { + LMV_STRIPE_TYPE = 0, + LMV_DEFAULT_TYPE = 1, +}; + +#define lmv_user_md lmv_user_md_v1 +struct lmv_user_md_v1 { + __u32 lum_magic; /* must be the first field */ + __u32 lum_stripe_count; /* dirstripe count */ + __u32 lum_stripe_offset; /* MDT idx for default dirstripe */ + __u32 lum_hash_type; /* Dir stripe policy */ + __u32 lum_type; /* LMV type: default or normal */ + __u32 lum_padding1; + __u32 lum_padding2; + __u32 lum_padding3; + char lum_pool_name[LOV_MAXPOOLNAME]; + struct lmv_user_mds_data lum_objects[0]; +}; + +static inline int lmv_user_md_size(int stripes, int lmm_magic) +{ + return sizeof(struct lmv_user_md) + + stripes * sizeof(struct lmv_user_mds_data); +} + +extern void lustre_swab_lmv_user_md(struct lmv_user_md *lum); + struct ll_recreate_obj { __u64 lrc_id; - __u64 lrc_group; __u32 lrc_ost_idx; }; @@ -228,19 +434,15 @@ struct ll_fid { * OST for saving into EA. */ }; -struct filter_fid { - struct ll_fid ff_fid; /* ff_fid.f_type == file stripe number */ - __u64 ff_objid; - __u64 ff_group; -}; - +#define UUID_MAX 40 struct obd_uuid { - char uuid[40]; + char uuid[UUID_MAX]; }; -static inline int obd_uuid_equals(struct obd_uuid *u1, struct obd_uuid *u2) +static inline bool obd_uuid_equals(const struct obd_uuid *u1, + const struct obd_uuid *u2) { - return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0; + return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0; } static inline int obd_uuid_empty(struct obd_uuid *uuid) @@ -255,7 +457,7 @@ static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp) } /* For printf's only, make sure uuid is terminated */ -static inline char *obd_uuid2str(struct obd_uuid *uuid) +static inline char *obd_uuid2str(const struct obd_uuid *uuid) { if (uuid->uuid[sizeof(*uuid) - 1] != '\0') { /* Obviously not safe, but for printfs, no real harm done... @@ -282,38 +484,12 @@ static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen) *p = '\0'; } -/** - * File IDentifier. - * - * FID is a cluster-wide unique identifier of a file or an object (stripe). - * FIDs are never reused. - */ -struct lu_fid { - /** - * FID sequence. Sequence is a unit of migration: all files (objects) - * with FIDs from a given sequence are stored on the same server. - * Lustre should support 2^64 objects, so even if each sequence - * has only a single object we can still enumerate 2^64 objects. - */ - __u64 f_seq; - /** FID number within sequence. */ - __u32 f_oid; - /** - * FID version, used to distinguish different versions (in the sense - * of snapshots, etc.) of the same file system object. Not currently - * used. - */ - __u32 f_ver; -}; - -/* Userspace should treat lu_fid as opaque, and only use the following methods - to print or parse them. Other functions (e.g. compare, swab) could be moved - here from lustre_idl.h if needed. */ -typedef struct lu_fid lustre_fid; - /* printf display format e.g. printf("file FID is "DFID"\n", PFID(fid)); */ -#define DFID "["LPX64":0x%x:0x%x]" +#define FID_NOBRACE_LEN 40 +#define FID_LEN (FID_NOBRACE_LEN + 2) +#define DFID_NOBRACE LPX64":0x%x:0x%x" +#define DFID "["DFID_NOBRACE"]" #define PFID(fid) \ (fid)->f_seq, \ (fid)->f_oid, \ @@ -321,7 +497,11 @@ typedef struct lu_fid lustre_fid; /* scanf input parse format -- strip '[' first. e.g. sscanf(fidstr, SFID, RFID(&fid)); */ -#define SFID "0x%llx:0x%x:0x%x" +/* #define SFID "0x"LPX64i":0x"LPSZX":0x"LPSZX"" +liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 4 has type 'unsigned int *' +liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 5 has type 'unsigned int *' +*/ +#define SFID "0x"LPX64i":0x%x:0x%x" #define RFID(fid) \ &((fid)->f_seq), \ &((fid)->f_oid), \ @@ -348,7 +528,7 @@ struct if_quotacheck { struct obd_uuid obd_uuid; }; -#define IDENTITY_DOWNCALL_MAGIC 0x6d6dd620 +#define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629 /* permission */ #define N_PERMS_MAX 64 @@ -356,6 +536,7 @@ struct if_quotacheck { struct perm_downcall_data { __u64 pdd_nid; __u32 pdd_perm; + __u32 pdd_padding; }; struct identity_downcall_data { @@ -364,8 +545,8 @@ struct identity_downcall_data { __u32 idd_uid; __u32 idd_gid; __u32 idd_nperms; - struct perm_downcall_data idd_perms[N_PERMS_MAX]; __u32 idd_ngroups; + struct perm_downcall_data idd_perms[N_PERMS_MAX]; __u32 idd_groups[0]; }; @@ -398,6 +579,14 @@ enum { #endif /* !__KERNEL__ */ +/* lustre volatile file support + * file name header: .^L^S^T^R:volatile" + */ +#define LUSTRE_VOLATILE_HDR ".\x0c\x13\x14\x12:VOLATILE" +#define LUSTRE_VOLATILE_HDR_LEN 14 +/* hdr + MDT index */ +#define LUSTRE_VOLATILE_IDX LUSTRE_VOLATILE_HDR":%.4X:" + typedef enum lustre_quota_version { LUSTRE_QUOTA_V2 = 1 } lustre_quota_version_t; @@ -421,7 +610,7 @@ struct obd_dqblk { __u64 dqb_btime; __u64 dqb_itime; __u32 dqb_valid; - __u32 padding; + __u32 dqb_padding; }; enum { @@ -444,6 +633,22 @@ struct if_quotactl { struct obd_uuid obd_uuid; }; +/* swap layout flags */ +#define SWAP_LAYOUTS_CHECK_DV1 (1 << 0) +#define SWAP_LAYOUTS_CHECK_DV2 (1 << 1) +#define SWAP_LAYOUTS_KEEP_MTIME (1 << 2) +#define SWAP_LAYOUTS_KEEP_ATIME (1 << 3) + +/* Swap XATTR_NAME_HSM as well, only on the MDT so far */ +#define SWAP_LAYOUTS_MDS_HSM (1 << 31) +struct lustre_swap_layouts { + __u64 sl_flags; + __u32 sl_fd; + __u32 sl_gid; + __u64 sl_dv1; + __u64 sl_dv2; +}; + /********* Changelogs **********/ /** Changelog record types */ @@ -460,30 +665,114 @@ enum changelog_rec_type { CL_EXT = 9, /* namespace extended record (2nd half of rename) */ CL_OPEN = 10, /* not currently used */ CL_CLOSE = 11, /* may be written to log only with mtime change */ - CL_IOCTL = 12, - CL_TRUNC = 13, - CL_SETATTR = 14, - CL_XATTR = 15, - CL_HSM = 16, /* HSM specific events, see flags */ - CL_LAST + CL_LAYOUT = 12, /* file layout/striping modified */ + CL_TRUNC = 13, + CL_SETATTR = 14, + CL_XATTR = 15, + CL_HSM = 16, /* HSM specific events, see flags */ + CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */ + CL_CTIME = 18, + CL_ATIME = 19, + CL_LAST }; static inline const char *changelog_type2str(int type) { - static const char *changelog_str[] = { - "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK", - "RMDIR", "RNMFM", "RNMTO", "OPEN", "CLOSE", "IOCTL", "TRUNC", - "SATTR", "XATTR", "HSM" }; - if (type >= 0 && type < CL_LAST) - return changelog_str[type]; - return NULL; + static const char *changelog_str[] = { + "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK", + "RMDIR", "RENME", "RNMTO", "OPEN", "CLOSE", "LYOUT", "TRUNC", + "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME", + }; + + if (type >= 0 && type < CL_LAST) + return changelog_str[type]; + return NULL; } /* per-record flags */ -#define CLF_VERSION 0x1000 -#define CLF_FLAGMASK 0x0FFF +#define CLF_VERSION 0x1000 +#define CLF_EXT_VERSION 0x2000 +#define CLF_FLAGSHIFT 12 +#define CLF_FLAGMASK ((1U << CLF_FLAGSHIFT) - 1) +#define CLF_VERMASK (~CLF_FLAGMASK) /* Anything under the flagmask may be per-type (if desired) */ +/* Flags for unlink */ +#define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */ +#define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */ + /* HSM cleaning needed */ +/* Flags for rename */ +#define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink of target */ + +/* Flags for HSM */ +/* 12b used (from high weight to low weight): + * 2b for flags + * 3b for event + * 7b for error code + */ +#define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */ +#define CLF_HSM_ERR_H 6 +#define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */ +#define CLF_HSM_EVENT_H 9 +#define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */ +#define CLF_HSM_FLAG_H 11 +#define CLF_HSM_SPARE_L 12 /* 4 spare bits */ +#define CLF_HSM_SPARE_H 15 +#define CLF_HSM_LAST 15 + +/* Remove bits higher than _h, then extract the value + * between _h and _l by shifting lower weigth to bit 0. */ +#define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \ + >> (CLF_HSM_LAST - _h + _l)) + +#define CLF_HSM_SUCCESS 0x00 +#define CLF_HSM_MAXERROR 0x7E +#define CLF_HSM_ERROVERFLOW 0x7F + +#define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */ + +/* 3 bits field => 8 values allowed */ +enum hsm_event { + HE_ARCHIVE = 0, + HE_RESTORE = 1, + HE_CANCEL = 2, + HE_RELEASE = 3, + HE_REMOVE = 4, + HE_STATE = 5, + HE_SPARE1 = 6, + HE_SPARE2 = 7, +}; + +static inline enum hsm_event hsm_get_cl_event(__u16 flags) +{ + return CLF_GET_BITS(flags, CLF_HSM_EVENT_H, CLF_HSM_EVENT_L); +} + +static inline void hsm_set_cl_event(int *flags, enum hsm_event he) +{ + *flags |= (he << CLF_HSM_EVENT_L); +} + +static inline __u16 hsm_get_cl_flags(int flags) +{ + return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L); +} + +static inline void hsm_set_cl_flags(int *flags, int bits) +{ + *flags |= (bits << CLF_HSM_FLAG_L); +} + +static inline int hsm_get_cl_error(int flags) +{ + return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L); +} + +static inline void hsm_set_cl_error(int *flags, int error) +{ + *flags |= (error << CLF_HSM_ERR_L); +} + +#define CR_MAXSIZE cfs_size_round(2*NAME_MAX + 1 + sizeof(struct changelog_rec)) -#define CR_MAXSIZE (PATH_MAX + sizeof(struct changelog_rec)) struct changelog_rec { __u16 cr_namelen; __u16 cr_flags; /**< (flags&CLF_FLAGMASK)|CLF_VERSION */ @@ -499,10 +788,58 @@ struct changelog_rec { char cr_name[0]; /**< last element */ } __attribute__((packed)); -struct ioc_changelog_clear { +/* changelog_ext_rec is 2*sizeof(lu_fid) bigger than changelog_rec, to save + * space, only rename uses changelog_ext_rec, while others use changelog_rec to + * store records. + */ +struct changelog_ext_rec { + __u16 cr_namelen; + __u16 cr_flags; /**< (flags & CLF_FLAGMASK) | + CLF_EXT_VERSION */ + __u32 cr_type; /**< \a changelog_rec_type */ + __u64 cr_index; /**< changelog record number */ + __u64 cr_prev; /**< last index for this target fid */ + __u64 cr_time; + union { + lustre_fid cr_tfid; /**< target fid */ + __u32 cr_markerflags; /**< CL_MARK flags */ + }; + lustre_fid cr_pfid; /**< target parent fid */ + lustre_fid cr_sfid; /**< source fid, or zero */ + lustre_fid cr_spfid; /**< source parent fid, or zero */ + char cr_name[0]; /**< last element */ +} __attribute__((packed)); + +#define CHANGELOG_REC_EXTENDED(rec) \ + (((rec)->cr_flags & CLF_VERMASK) == CLF_EXT_VERSION) + +static inline int changelog_rec_size(struct changelog_rec *rec) +{ + return CHANGELOG_REC_EXTENDED(rec) ? sizeof(struct changelog_ext_rec): + sizeof(*rec); +} + +static inline char *changelog_rec_name(struct changelog_rec *rec) +{ + return CHANGELOG_REC_EXTENDED(rec) ? + ((struct changelog_ext_rec *)rec)->cr_name: rec->cr_name; +} + +static inline int changelog_rec_snamelen(struct changelog_ext_rec *rec) +{ + return rec->cr_namelen - strlen(rec->cr_name) - 1; +} + +static inline char *changelog_rec_sname(struct changelog_ext_rec *rec) +{ + return rec->cr_name + strlen(rec->cr_name) + 1; +} + +struct ioc_changelog { + __u64 icc_recno; __u32 icc_mdtindex; __u32 icc_id; - __u64 icc_recno; + __u32 icc_flags; }; enum changelog_message_type { @@ -512,6 +849,13 @@ enum changelog_message_type { /********* Misc **********/ +struct ioc_data_version { + __u64 idv_version; + __u64 idv_flags; /* See LL_DV_xxx */ +}; +#define LL_DV_NOFLUSH 0x01 /* Do not take READ EXTENT LOCK before sampling + version. Dirty caches are left unchanged. */ + #ifndef offsetof # define offsetof(typ,memb) ((unsigned long)((char *)&(((typ *)0)->memb))) #endif @@ -521,69 +865,324 @@ enum changelog_message_type { /********* HSM **********/ +/** HSM per-file state + * See HSM_FLAGS below. + */ +enum hsm_states { + HS_EXISTS = 0x00000001, + HS_DIRTY = 0x00000002, + HS_RELEASED = 0x00000004, + HS_ARCHIVED = 0x00000008, + HS_NORELEASE = 0x00000010, + HS_NOARCHIVE = 0x00000020, + HS_LOST = 0x00000040, +}; -#define HSM_FLAGS_MASK 0 +/* HSM user-setable flags. */ +#define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY) +/* Other HSM flags. */ +#define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED) -enum hsm_message_type { - HMT_ACTION_LIST = 100, /* message is a hsm_action_list */ +/* + * All HSM-related possible flags that could be applied to a file. + * This should be kept in sync with hsm_states. + */ +#define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK) + +/** + * HSM request progress state + */ +enum hsm_progress_states { + HPS_WAITING = 1, + HPS_RUNNING = 2, + HPS_DONE = 3, }; +#define HPS_NONE 0 + +static inline char *hsm_progress_state2name(enum hsm_progress_states s) +{ + switch (s) { + case HPS_WAITING: return "waiting"; + case HPS_RUNNING: return "running"; + case HPS_DONE: return "done"; + default: return "unknown"; + } +} -/* User-generated (ioctl) request types */ -enum hsm_request { - HSMR_ARCHIVE = 10, /* copy to hsm */ - HSMR_RESTORE = 11, /* prestage */ - HSMR_RELEASE = 12, /* drop ost objects */ - HSMR_REMOVE = 13, /* remove from archive */ - HSMR_CANCEL = 14 +struct hsm_extent { + __u64 offset; + __u64 length; +} __attribute__((packed)); + +/** + * Current HSM states of a Lustre file. + * + * This structure purpose is to be sent to user-space mainly. It describes the + * current HSM flags and in-progress action. + */ +struct hsm_user_state { + /** Current HSM states, from enum hsm_states. */ + __u32 hus_states; + __u32 hus_archive_id; + /** The current undergoing action, if there is one */ + __u32 hus_in_progress_state; + __u32 hus_in_progress_action; + struct hsm_extent hus_in_progress_location; + char hus_extended_info[]; }; -/* Copytool commands */ -enum hsm_action { +struct hsm_state_set_ioc { + struct lu_fid hssi_fid; + __u64 hssi_setmask; + __u64 hssi_clearmask; +}; + +/* + * This structure describes the current in-progress action for a file. + * it is retuned to user space and send over the wire + */ +struct hsm_current_action { + /** The current undergoing action, if there is one */ + /* state is one of hsm_progress_states */ + __u32 hca_state; + /* action is one of hsm_user_action */ + __u32 hca_action; + struct hsm_extent hca_location; +}; + +/***** HSM user requests ******/ +/* User-generated (lfs/ioctl) request types */ +enum hsm_user_action { + HUA_NONE = 1, /* no action (noop) */ + HUA_ARCHIVE = 10, /* copy to hsm */ + HUA_RESTORE = 11, /* prestage */ + HUA_RELEASE = 12, /* drop ost objects */ + HUA_REMOVE = 13, /* remove from archive */ + HUA_CANCEL = 14 /* cancel a request */ +}; + +static inline char *hsm_user_action2name(enum hsm_user_action a) +{ + switch (a) { + case HUA_NONE: return "NOOP"; + case HUA_ARCHIVE: return "ARCHIVE"; + case HUA_RESTORE: return "RESTORE"; + case HUA_RELEASE: return "RELEASE"; + case HUA_REMOVE: return "REMOVE"; + case HUA_CANCEL: return "CANCEL"; + default: return "UNKNOWN"; + } +} + +/* + * List of hr_flags (bit field) + */ +#define HSM_FORCE_ACTION 0x0001 +/* used by CT, connot be set by user */ +#define HSM_GHOST_COPY 0x0002 + +/** + * Contains all the fixed part of struct hsm_user_request. + * + */ +struct hsm_request { + __u32 hr_action; /* enum hsm_user_action */ + __u32 hr_archive_id; /* archive id, used only with HUA_ARCHIVE */ + __u64 hr_flags; /* request flags */ + __u32 hr_itemcount; /* item count in hur_user_item vector */ + __u32 hr_data_len; +}; + +struct hsm_user_item { + lustre_fid hui_fid; + struct hsm_extent hui_extent; +} __attribute__((packed)); + +struct hsm_user_request { + struct hsm_request hur_request; + struct hsm_user_item hur_user_item[0]; + /* extra data blob at end of struct (after all + * hur_user_items), only use helpers to access it + */ +} __attribute__((packed)); + +/** Return pointer to data field in a hsm user request */ +static inline void *hur_data(struct hsm_user_request *hur) +{ + return &(hur->hur_user_item[hur->hur_request.hr_itemcount]); +} + +/** Compute the current length of the provided hsm_user_request. */ +static inline int hur_len(struct hsm_user_request *hur) +{ + return offsetof(struct hsm_user_request, + hur_user_item[hur->hur_request.hr_itemcount]) + + hur->hur_request.hr_data_len; +} + +/****** HSM RPCs to copytool *****/ +/* Message types the copytool may receive */ +enum hsm_message_type { + HMT_ACTION_LIST = 100, /* message is a hsm_action_list */ +}; + +/* Actions the copytool may be instructed to take for a given action_item */ +enum hsm_copytool_action { + HSMA_NONE = 10, /* no action */ HSMA_ARCHIVE = 20, /* arbitrary offset */ HSMA_RESTORE = 21, HSMA_REMOVE = 22, HSMA_CANCEL = 23 }; +static inline char *hsm_copytool_action2name(enum hsm_copytool_action a) +{ + switch (a) { + case HSMA_NONE: return "NOOP"; + case HSMA_ARCHIVE: return "ARCHIVE"; + case HSMA_RESTORE: return "RESTORE"; + case HSMA_REMOVE: return "REMOVE"; + case HSMA_CANCEL: return "CANCEL"; + default: return "UNKNOWN"; + } +} + /* Copytool item action description */ struct hsm_action_item { - __u32 hai_len; /* valid size of this struct */ - __u32 hai_action; /* enum actually, but use known size */ - lustre_fid hai_fid; /* Lustre FID to operated on */ - __u64 hai_cookie; /* action cookie from coordinator */ - __u64 hai_extent_start; /* byte range to operate on */ - __u64 hai_extent_end; - __u64 hai_gid; /* grouplock id */ - char hai_data[0]; /* variable length */ + __u32 hai_len; /* valid size of this struct */ + __u32 hai_action; /* hsm_copytool_action, but use known size */ + lustre_fid hai_fid; /* Lustre FID to operated on */ + lustre_fid hai_dfid; /* fid used for data access */ + struct hsm_extent hai_extent; /* byte range to operate on */ + __u64 hai_cookie; /* action cookie from coordinator */ + __u64 hai_gid; /* grouplock id */ + char hai_data[0]; /* variable length */ } __attribute__((packed)); +/* + * helper function which print in hexa the first bytes of + * hai opaque field + * \param hai [IN] record to print + * \param buffer [OUT] output buffer + * \param len [IN] max buffer len + * \retval buffer + */ +static inline char *hai_dump_data_field(struct hsm_action_item *hai, + char *buffer, int len) +{ + int i, sz, data_len; + char *ptr; + + ptr = buffer; + sz = len; + data_len = hai->hai_len - sizeof(*hai); + for (i = 0 ; (i < data_len) && (sz > 0) ; i++) + { + int cnt; + + cnt = snprintf(ptr, sz, "%.2X", + (unsigned char)hai->hai_data[i]); + ptr += cnt; + sz -= cnt; + } + *ptr = '\0'; + return buffer; +} + /* Copytool action list */ #define HAL_VERSION 1 -#define HAL_MAXSIZE 4096 /* bytes, used in userspace only */ +#define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */ struct hsm_action_list { - __u32 hal_version; - __u32 hal_count; /* number of hai's to follow */ - __u32 hal_archive_num; /* which archive backend */ - __u32 padding1; - char hal_fsname[0]; /* null-terminated */ - /* struct hsm_action_item[hal_count] follows, aligned on 8-byte - boundaries. See hai_zero */ + __u32 hal_version; + __u32 hal_count; /* number of hai's to follow */ + __u64 hal_compound_id; /* returned by coordinator */ + __u64 hal_flags; + __u32 hal_archive_id; /* which archive backend */ + __u32 padding1; + char hal_fsname[0]; /* null-terminated */ + /* struct hsm_action_item[hal_count] follows, aligned on 8-byte + boundaries. See hai_zero */ } __attribute__((packed)); +#ifndef HAVE_CFS_SIZE_ROUND +static inline int cfs_size_round (int val) +{ + return (val + 7) & (~0x7); +} +#define HAVE_CFS_SIZE_ROUND +#endif + /* Return pointer to first hai in action list */ -static __inline__ struct hsm_action_item * hai_zero(struct hsm_action_list *hal) +static inline struct hsm_action_item * hai_zero(struct hsm_action_list *hal) { return (struct hsm_action_item *)(hal->hal_fsname + cfs_size_round(strlen(hal-> \ hal_fsname))); } /* Return pointer to next hai */ -static __inline__ struct hsm_action_item * hai_next(struct hsm_action_item *hai) +static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai) { return (struct hsm_action_item *)((char *)hai + cfs_size_round(hai->hai_len)); } +/* Return size of an hsm_action_list */ +static inline int hal_size(struct hsm_action_list *hal) +{ + int i, sz; + struct hsm_action_item *hai; + + sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname)); + hai = hai_zero(hal); + for (i = 0 ; i < hal->hal_count ; i++, hai = hai_next(hai)) + sz += cfs_size_round(hai->hai_len); + + return sz; +} + +/* HSM file import + * describe the attributes to be set on imported file + */ +struct hsm_user_import { + __u64 hui_size; + __u64 hui_atime; + __u64 hui_mtime; + __u32 hui_atime_ns; + __u32 hui_mtime_ns; + __u32 hui_uid; + __u32 hui_gid; + __u32 hui_mode; + __u32 hui_archive_id; +}; + +/* Copytool progress reporting */ +#define HP_FLAG_COMPLETED 0x01 +#define HP_FLAG_RETRY 0x02 + +struct hsm_progress { + lustre_fid hp_fid; + __u64 hp_cookie; + struct hsm_extent hp_extent; + __u16 hp_flags; + __u16 hp_errval; /* positive val */ + __u32 padding; +}; + +/** + * Use by copytool during any hsm request they handled. + * This structure is initialized by llapi_hsm_copy_start() + * which is an helper over the ioctl() interface + * Store Lustre, internal use only, data. + */ +struct hsm_copy { + __u64 hc_data_version; + __u16 hc_flags; + __u16 hc_errval; /* positive val */ + __u32 padding; + struct hsm_action_item hc_hai; +}; + +/** @} lustreuser */ #endif /* _LUSTRE_USER_H */