/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 only, * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License version 2 for more details (a copy is included * in the LICENSE file that accompanied this code). * * You should have received a copy of the GNU General Public License * version 2 along with this program; If not, see * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * * GPL HEADER END */ /* * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2011, 2012, Whamcloud, Inc. */ /* * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. * * lustre/include/lustre/lustre_idl.h * * Lustre wire protocol definitions. */ /** \defgroup lustreidl lustreidl * * Lustre wire protocol definitions. * * ALL structs passing over the wire should be declared here. Structs * that are used in interfaces with userspace should go in lustre_user.h. * * All structs being declared here should be built from simple fixed-size * types (__u8, __u16, __u32, __u64) or be built from other types or * structs also declared in this file. Similarly, all flags and magic * values in those structs should also be declared here. This ensures * that the Lustre wire protocol is not influenced by external dependencies. * * The only other acceptable items in this file are VERY SIMPLE accessor * functions to avoid callers grubbing inside the structures, and the * prototypes of the swabber functions for each struct. Nothing that * depends on external functions or definitions should be in here. * * Structs must be properly aligned to put 64-bit values on an 8-byte * boundary. Any structs being added here must also be added to * utils/wirecheck.c and "make newwiretest" run to regenerate the * utils/wiretest.c sources. This allows us to verify that wire structs * have the proper alignment/size on all architectures. * * DO NOT CHANGE any of the structs, flags, values declared here and used * in released Lustre versions. Some structs may have padding fields that * can be used. Some structs might allow addition at the end (verify this * in the code to ensure that new/old clients that see this larger struct * do not fail, otherwise you need to implement protocol compatibility). * * We assume all nodes are either little-endian or big-endian, and we * always send messages in the sender's native format. The receiver * detects the message format by checking the 'magic' field of the message * (see lustre_msg_swabbed() below). * * Each wire type has corresponding 'lustre_swab_xxxtypexxx()' routines, * implemented either here, inline (trivial implementations) or in * ptlrpc/pack_generic.c. These 'swabbers' convert the type from "other" * endian, in-place in the message buffer. * * A swabber takes a single pointer argument. The caller must already have * verified that the length of the message buffer >= sizeof (type). * * For variable length types, a second 'lustre_swab_v_xxxtypexxx()' routine * may be defined that swabs just the variable part, after the caller has * verified that the message buffer is large enough. * * @{ */ #ifndef _LUSTRE_IDL_H_ #define _LUSTRE_IDL_H_ #if !defined(LASSERT) && !defined(LPU64) #include /* for LASSERT, LPUX64, etc */ #endif /* Defn's shared with user-space. */ #include /* * GENERAL STUFF */ /* FOO_REQUEST_PORTAL is for incoming requests on the FOO * FOO_REPLY_PORTAL is for incoming replies on the FOO * FOO_BULK_PORTAL is for incoming bulk on the FOO */ #define CONNMGR_REQUEST_PORTAL 1 #define CONNMGR_REPLY_PORTAL 2 //#define OSC_REQUEST_PORTAL 3 #define OSC_REPLY_PORTAL 4 //#define OSC_BULK_PORTAL 5 #define OST_IO_PORTAL 6 #define OST_CREATE_PORTAL 7 #define OST_BULK_PORTAL 8 //#define MDC_REQUEST_PORTAL 9 #define MDC_REPLY_PORTAL 10 //#define MDC_BULK_PORTAL 11 #define MDS_REQUEST_PORTAL 12 //#define MDS_REPLY_PORTAL 13 #define MDS_BULK_PORTAL 14 #define LDLM_CB_REQUEST_PORTAL 15 #define LDLM_CB_REPLY_PORTAL 16 #define LDLM_CANCEL_REQUEST_PORTAL 17 #define LDLM_CANCEL_REPLY_PORTAL 18 //#define PTLBD_REQUEST_PORTAL 19 //#define PTLBD_REPLY_PORTAL 20 //#define PTLBD_BULK_PORTAL 21 #define MDS_SETATTR_PORTAL 22 #define MDS_READPAGE_PORTAL 23 #define MDS_MDS_PORTAL 24 #define MGC_REPLY_PORTAL 25 #define MGS_REQUEST_PORTAL 26 #define MGS_REPLY_PORTAL 27 #define OST_REQUEST_PORTAL 28 #define FLD_REQUEST_PORTAL 29 #define SEQ_METADATA_PORTAL 30 #define SEQ_DATA_PORTAL 31 #define SEQ_CONTROLLER_PORTAL 32 #define MGS_BULK_PORTAL 33 /* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, n8851@cray.com */ /* packet types */ #define PTL_RPC_MSG_REQUEST 4711 #define PTL_RPC_MSG_ERR 4712 #define PTL_RPC_MSG_REPLY 4713 /* DON'T use swabbed values of MAGIC as magic! */ #define LUSTRE_MSG_MAGIC_V1 0x0BD00BD0 #define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3 #define LUSTRE_MSG_MAGIC_V1_SWABBED 0xD00BD00B #define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B #define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2 #define PTLRPC_MSG_VERSION 0x00000003 #define LUSTRE_VERSION_MASK 0xffff0000 #define LUSTRE_OBD_VERSION 0x00010000 #define LUSTRE_MDS_VERSION 0x00020000 #define LUSTRE_OST_VERSION 0x00030000 #define LUSTRE_DLM_VERSION 0x00040000 #define LUSTRE_LOG_VERSION 0x00050000 #define LUSTRE_MGS_VERSION 0x00060000 typedef __u32 mdsno_t; typedef __u64 seqno_t; typedef __u64 obd_id; typedef __u64 obd_seq; typedef __s64 obd_time; typedef __u64 obd_size; typedef __u64 obd_off; typedef __u64 obd_blocks; typedef __u64 obd_valid; typedef __u32 obd_blksize; typedef __u32 obd_mode; typedef __u32 obd_uid; typedef __u32 obd_gid; typedef __u32 obd_flag; typedef __u32 obd_count; /** * Describes a range of sequence, lsr_start is included but lsr_end is * not in the range. * Same structure is used in fld module where lsr_index field holds mdt id * of the home mdt. */ #define LU_SEQ_RANGE_MDT 0x0 #define LU_SEQ_RANGE_OST 0x1 struct lu_seq_range { __u64 lsr_start; __u64 lsr_end; __u32 lsr_index; __u32 lsr_flags; }; /** * returns width of given range \a r */ static inline __u64 range_space(const struct lu_seq_range *range) { return range->lsr_end - range->lsr_start; } /** * initialize range to zero */ static inline void range_init(struct lu_seq_range *range) { range->lsr_start = range->lsr_end = range->lsr_index = 0; } /** * check if given seq id \a s is within given range \a r */ static inline int range_within(const struct lu_seq_range *range, __u64 s) { return s >= range->lsr_start && s < range->lsr_end; } static inline int range_is_sane(const struct lu_seq_range *range) { return (range->lsr_end >= range->lsr_start); } static inline int range_is_zero(const struct lu_seq_range *range) { return (range->lsr_start == 0 && range->lsr_end == 0); } static inline int range_is_exhausted(const struct lu_seq_range *range) { return range_space(range) == 0; } /* return 0 if two range have the same location */ static inline int range_compare_loc(const struct lu_seq_range *r1, const struct lu_seq_range *r2) { return r1->lsr_index != r2->lsr_index || r1->lsr_flags != r2->lsr_flags; } #define DRANGE "[%#16.16"LPF64"x-%#16.16"LPF64"x):%x:%s" #define PRANGE(range) \ (range)->lsr_start, \ (range)->lsr_end, \ (range)->lsr_index, \ (range)->lsr_flags == LU_SEQ_RANGE_MDT ? "mdt" : "ost" /** \defgroup lu_fid lu_fid * @{ */ /** * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat. */ enum lma_compat { LMAC_HSM = 0x00000001, LMAC_SOM = 0x00000002, }; /** * Masks for all features that should be supported by a Lustre version to * access a specific file. * This information is stored in lustre_mdt_attrs::lma_incompat. * * NOTE: No incompat feature should be added before bug #17670 is landed. */ #define LMA_INCOMPAT_SUPP 0x0 /** * Following struct for MDT attributes, that will be kept inode's EA. * Introduced in 2.0 release (please see b15993, for details) */ 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; /** mdt/ost type, others */ __u64 lma_flags; /* IO Epoch SOM attributes belongs to */ __u64 lma_ioepoch; /** total file size in objects */ __u64 lma_som_size; /** total fs blocks in objects */ __u64 lma_som_blocks; /** mds mount id the size is valid for */ __u64 lma_som_mountid; }; /** * Fill \a lma with its first content. * Only fid is stored. */ static inline void lustre_lma_init(struct lustre_mdt_attrs *lma, const struct lu_fid *fid) { lma->lma_compat = 0; lma->lma_incompat = 0; memcpy(&lma->lma_self_fid, fid, sizeof(*fid)); lma->lma_flags = 0; lma->lma_ioepoch = 0; lma->lma_som_size = 0; lma->lma_som_blocks = 0; lma->lma_som_mountid = 0; /* If a field is added in struct lustre_mdt_attrs, zero it explicitly * and change the test below. */ LASSERT(sizeof(*lma) == (offsetof(struct lustre_mdt_attrs, lma_som_mountid) + sizeof(lma->lma_som_mountid))); }; extern void lustre_swab_lu_fid(struct lu_fid *fid); /** * Swab, if needed, lustre_mdt_attr struct to on-disk format. * Otherwise, do not touch it. */ static inline void lustre_lma_swab(struct lustre_mdt_attrs *lma) { /* Use LUSTRE_MSG_MAGIC to detect local endianess. */ if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) { __swab32s(&lma->lma_compat); __swab32s(&lma->lma_incompat); lustre_swab_lu_fid(&lma->lma_self_fid); __swab64s(&lma->lma_flags); __swab64s(&lma->lma_ioepoch); __swab64s(&lma->lma_som_size); __swab64s(&lma->lma_som_blocks); __swab64s(&lma->lma_som_mountid); } }; /* This is the maximum number of MDTs allowed in CMD testing until such * a time that FID-on-OST is implemented. This is due to the limitations * of packing non-0-MDT numbers into the FID SEQ namespace. Once FID-on-OST * is implemented this limit will be virtually unlimited. */ #define MAX_MDT_COUNT 8 /** * fid constants */ enum { /** initial fid id value */ LUSTRE_FID_INIT_OID = 1UL }; /** returns fid object sequence */ static inline __u64 fid_seq(const struct lu_fid *fid) { return fid->f_seq; } /** returns fid object id */ static inline __u32 fid_oid(const struct lu_fid *fid) { return fid->f_oid; } /** returns fid object version */ static inline __u32 fid_ver(const struct lu_fid *fid) { return fid->f_ver; } static inline void fid_zero(struct lu_fid *fid) { memset(fid, 0, sizeof(*fid)); } static inline obd_id fid_ver_oid(const struct lu_fid *fid) { return ((__u64)fid_ver(fid) << 32 | fid_oid(fid)); } /** * Note that reserved SEQ numbers below 12 will conflict with ldiskfs * inodes in the IGIF namespace, so these reserved SEQ numbers can be * used for other purposes and not risk collisions with existing inodes. * * Different FID Format * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0 */ enum fid_seq { FID_SEQ_OST_MDT0 = 0, FID_SEQ_LLOG = 1, FID_SEQ_ECHO = 2, FID_SEQ_OST_MDT1 = 3, FID_SEQ_OST_MAX = 9, /* Max MDT count before OST_on_FID */ FID_SEQ_RSVD = 11, FID_SEQ_IGIF = 12, FID_SEQ_IGIF_MAX = 0x0ffffffffULL, FID_SEQ_IDIF = 0x100000000ULL, FID_SEQ_IDIF_MAX = 0x1ffffffffULL, /* Normal FID sequence starts from this value, i.e. 1<<33 */ FID_SEQ_START = 0x200000000ULL, /* sequence for local pre-defined FIDs listed in local_oid */ FID_SEQ_LOCAL_FILE = 0x200000001ULL, FID_SEQ_DOT_LUSTRE = 0x200000002ULL, /* sequence is used for local named objects FIDs generated * by local_object_storage library */ FID_SEQ_LOCAL_NAME = 0x200000003ULL, FID_SEQ_SPECIAL = 0x200000004ULL, FID_SEQ_QUOTA = 0x200000005ULL, FID_SEQ_QUOTA_GLB = 0x200000006ULL, FID_SEQ_NORMAL = 0x200000400ULL, FID_SEQ_LOV_DEFAULT= 0xffffffffffffffffULL }; #define OBIF_OID_MAX_BITS 32 #define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS) #define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1) #define IDIF_OID_MAX_BITS 48 #define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS) #define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1) /** OID for FID_SEQ_SPECIAL */ enum special_oid { /* Big Filesystem Lock to serialize rename operations */ FID_OID_SPECIAL_BFL = 1UL, }; /** OID for FID_SEQ_DOT_LUSTRE */ enum dot_lustre_oid { FID_OID_DOT_LUSTRE = 1UL, FID_OID_DOT_LUSTRE_OBF = 2UL, }; static inline int fid_seq_is_mdt0(obd_seq seq) { return (seq == FID_SEQ_OST_MDT0); } static inline int fid_seq_is_cmd(const __u64 seq) { return (seq >= FID_SEQ_OST_MDT1 && seq <= FID_SEQ_OST_MAX); }; static inline int fid_seq_is_mdt(const __u64 seq) { return seq == FID_SEQ_OST_MDT0 || (seq >= FID_SEQ_OST_MDT1 && seq <= FID_SEQ_OST_MAX); }; static inline int fid_seq_is_rsvd(const __u64 seq) { return (seq > FID_SEQ_OST_MDT0 && seq <= FID_SEQ_RSVD); }; static inline int fid_is_mdt0(const struct lu_fid *fid) { return fid_seq_is_mdt0(fid_seq(fid)); } /** * Check if a fid is igif or not. * \param fid the fid to be tested. * \return true if the fid is a igif; otherwise false. */ static inline int fid_seq_is_igif(const __u64 seq) { return seq >= FID_SEQ_IGIF && seq <= FID_SEQ_IGIF_MAX; } static inline int fid_is_igif(const struct lu_fid *fid) { return fid_seq_is_igif(fid_seq(fid)); } /** * Check if a fid is idif or not. * \param fid the fid to be tested. * \return true if the fid is a idif; otherwise false. */ static inline int fid_seq_is_idif(const __u64 seq) { return seq >= FID_SEQ_IDIF && seq <= FID_SEQ_IDIF_MAX; } static inline int fid_is_idif(const struct lu_fid *fid) { return fid_seq_is_idif(fid_seq(fid)); } struct ost_id { obd_id oi_id; obd_seq oi_seq; }; static inline int fid_seq_is_norm(const __u64 seq) { return (seq >= FID_SEQ_NORMAL); } static inline int fid_is_norm(const struct lu_fid *fid) { return fid_seq_is_norm(fid_seq(fid)); } /* convert an OST objid into an IDIF FID SEQ number */ static inline obd_seq fid_idif_seq(obd_id id, __u32 ost_idx) { return FID_SEQ_IDIF | (ost_idx << 16) | ((id >> 32) & 0xffff); } /* convert a packed IDIF FID into an OST objid */ static inline obd_id fid_idif_id(obd_seq seq, __u32 oid, __u32 ver) { return ((__u64)ver << 48) | ((seq & 0xffff) << 32) | oid; } /* extract ost index from IDIF FID */ static inline __u32 fid_idif_ost_idx(const struct lu_fid *fid) { LASSERT(fid_is_idif(fid)); return (fid_seq(fid) >> 16) & 0xffff; } /* unpack an ostid (id/seq) from a wire/disk structure into an IDIF FID */ static inline void ostid_idif_unpack(struct ost_id *ostid, struct lu_fid *fid, __u32 ost_idx) { fid->f_seq = fid_idif_seq(ostid->oi_id, ost_idx); fid->f_oid = ostid->oi_id; /* truncate to 32 bits by assignment */ fid->f_ver = ostid->oi_id >> 48; /* in theory, not currently used */ } /* unpack an ostid (id/seq) from a wire/disk structure into a non-IDIF FID */ static inline void ostid_fid_unpack(struct ost_id *ostid, struct lu_fid *fid) { fid->f_seq = ostid->oi_seq; fid->f_oid = ostid->oi_id; /* truncate to 32 bits by assignment */ fid->f_ver = ostid->oi_id >> 32; /* in theory, not currently used */ } /* Unpack an OST object id/seq (group) into a FID. This is needed for * converting all obdo, lmm, lsm, etc. 64-bit id/seq pairs into proper * FIDs. Note that if an id/seq is already in FID/IDIF format it will * be passed through unchanged. Only legacy OST objects in "group 0" * will be mapped into the IDIF namespace so that they can fit into the * struct lu_fid fields without loss. For reference see: * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs */ static inline int fid_ostid_unpack(struct lu_fid *fid, struct ost_id *ostid, __u32 ost_idx) { if (ost_idx > 0xffff) { CERROR("bad ost_idx, seq:"LPU64" id:"LPU64" ost_idx:%u\n", ostid->oi_seq, ostid->oi_id, ost_idx); return -EBADF; } if (fid_seq_is_mdt0(ostid->oi_seq)) { /* This is a "legacy" (old 1.x/2.early) OST object in "group 0" * that we map into the IDIF namespace. It allows up to 2^48 * objects per OST, as this is the object namespace that has * been in production for years. This can handle create rates * of 1M objects/s/OST for 9 years, or combinations thereof. */ if (ostid->oi_id >= IDIF_MAX_OID) { CERROR("bad MDT0 id, seq:"LPU64" id:"LPU64" ost_idx:%u\n", ostid->oi_seq, ostid->oi_id, ost_idx); return -EBADF; } ostid_idif_unpack(ostid, fid, ost_idx); } else if (fid_seq_is_rsvd(ostid->oi_seq)) { /* These are legacy OST objects for LLOG/ECHO and CMD testing. * We only support 2^32 objects in these groups, and cannot * uniquely identify them in the system (i.e. they are the * duplicated on all OSTs), but this is not strictly required * for the old object protocol, which has a separate ost_idx. */ if (ostid->oi_id >= 0xffffffffULL) { CERROR("bad RSVD id, seq:"LPU64" id:"LPU64" ost_idx:%u\n", ostid->oi_seq, ostid->oi_id, ost_idx); return -EBADF; } ostid_fid_unpack(ostid, fid); } else if (unlikely(fid_seq_is_igif(ostid->oi_seq))) { /* This is an MDT inode number, which should never collide with * proper OST object IDs, and is probably a broken filesystem */ CERROR("bad IGIF, seq:"LPU64" id:"LPU64" ost_idx:%u\n", ostid->oi_seq, ostid->oi_id, ost_idx); return -EBADF; } else /* if (fid_seq_is_idif(seq) || fid_seq_is_norm(seq)) */ { /* This is either an IDIF object, which identifies objects across * all OSTs, or a regular FID. The IDIF namespace maps legacy * OST objects into the FID namespace. In both cases, we just * pass the FID through, no conversion needed. */ ostid_fid_unpack(ostid, fid); } return 0; } /* pack an IDIF FID into an ostid (id/seq) for the wire/disk */ static inline void ostid_idif_pack(const struct lu_fid *fid, struct ost_id *ostid) { ostid->oi_seq = FID_SEQ_OST_MDT0; ostid->oi_id = fid_idif_id(fid->f_seq, fid->f_oid, fid->f_ver); } /* pack a non-IDIF FID into an ostid (id/seq) for the wire/disk */ static inline void ostid_fid_pack(const struct lu_fid *fid, struct ost_id *ostid) { ostid->oi_seq = fid_seq(fid); ostid->oi_id = fid_ver_oid(fid); } /* pack any OST FID into an ostid (id/seq) for the wire/disk */ static inline int fid_ostid_pack(const struct lu_fid *fid, struct ost_id *ostid) { if (unlikely(fid_seq_is_igif(fid->f_seq))) { CERROR("bad IGIF, "DFID"\n", PFID(fid)); return -EBADF; } if (fid_is_idif(fid)) ostid_idif_pack(fid, ostid); else ostid_fid_pack(fid, ostid); return 0; } /* extract OST sequence (group) from a wire ost_id (id/seq) pair */ static inline obd_seq ostid_seq(struct ost_id *ostid) { if (unlikely(fid_seq_is_igif(ostid->oi_seq))) CWARN("bad IGIF, oi_seq: "LPU64" oi_id: "LPX64"\n", ostid->oi_seq, ostid->oi_id); if (unlikely(fid_seq_is_idif(ostid->oi_seq))) return FID_SEQ_OST_MDT0; return ostid->oi_seq; } /* extract OST objid from a wire ost_id (id/seq) pair */ static inline obd_id ostid_id(struct ost_id *ostid) { if (ostid->oi_seq == FID_SEQ_OST_MDT0) return ostid->oi_id & IDIF_OID_MASK; if (fid_seq_is_rsvd(ostid->oi_seq)) return ostid->oi_id & OBIF_OID_MASK; if (fid_seq_is_idif(ostid->oi_seq)) return fid_idif_id(ostid->oi_seq, ostid->oi_id, 0); return ostid->oi_id; } /** * Get inode number from a igif. * \param fid a igif to get inode number from. * \return inode number for the igif. */ static inline ino_t lu_igif_ino(const struct lu_fid *fid) { return fid_seq(fid); } /** * Build igif from the inode number/generation. */ #define LU_IGIF_BUILD(fid, ino, gen) \ do { \ fid->f_seq = ino; \ fid->f_oid = gen; \ fid->f_ver = 0; \ } while(0) static inline void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen) { LU_IGIF_BUILD(fid, ino, gen); LASSERT(fid_is_igif(fid)); } /** * Get inode generation from a igif. * \param fid a igif to get inode generation from. * \return inode generation for the igif. */ static inline __u32 lu_igif_gen(const struct lu_fid *fid) { return fid_oid(fid); } /* * Fids are transmitted across network (in the sender byte-ordering), * and stored on disk in big-endian order. */ static inline void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src) { /* check that all fields are converted */ CLASSERT(sizeof *src == sizeof fid_seq(src) + sizeof fid_oid(src) + sizeof fid_ver(src)); LASSERTF(fid_is_igif(src) || fid_ver(src) == 0, DFID"\n", PFID(src)); dst->f_seq = cpu_to_le64(fid_seq(src)); dst->f_oid = cpu_to_le32(fid_oid(src)); dst->f_ver = cpu_to_le32(fid_ver(src)); } static inline void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src) { /* check that all fields are converted */ CLASSERT(sizeof *src == sizeof fid_seq(src) + sizeof fid_oid(src) + sizeof fid_ver(src)); dst->f_seq = le64_to_cpu(fid_seq(src)); dst->f_oid = le32_to_cpu(fid_oid(src)); dst->f_ver = le32_to_cpu(fid_ver(src)); LASSERTF(fid_is_igif(dst) || fid_ver(dst) == 0, DFID"\n", PFID(dst)); } static inline void fid_cpu_to_be(struct lu_fid *dst, const struct lu_fid *src) { /* check that all fields are converted */ CLASSERT(sizeof *src == sizeof fid_seq(src) + sizeof fid_oid(src) + sizeof fid_ver(src)); LASSERTF(fid_is_igif(src) || fid_ver(src) == 0, DFID"\n", PFID(src)); dst->f_seq = cpu_to_be64(fid_seq(src)); dst->f_oid = cpu_to_be32(fid_oid(src)); dst->f_ver = cpu_to_be32(fid_ver(src)); } static inline void fid_be_to_cpu(struct lu_fid *dst, const struct lu_fid *src) { /* check that all fields are converted */ CLASSERT(sizeof *src == sizeof fid_seq(src) + sizeof fid_oid(src) + sizeof fid_ver(src)); dst->f_seq = be64_to_cpu(fid_seq(src)); dst->f_oid = be32_to_cpu(fid_oid(src)); dst->f_ver = be32_to_cpu(fid_ver(src)); LASSERTF(fid_is_igif(dst) || fid_ver(dst) == 0, DFID"\n", PFID(dst)); } static inline int fid_is_sane(const struct lu_fid *fid) { return fid != NULL && ((fid_seq(fid) >= FID_SEQ_START && fid_oid(fid) != 0 && fid_ver(fid) == 0) || fid_is_igif(fid) || fid_seq_is_rsvd(fid_seq(fid))); } static inline int fid_is_zero(const struct lu_fid *fid) { return fid_seq(fid) == 0 && fid_oid(fid) == 0; } extern void lustre_swab_lu_fid(struct lu_fid *fid); extern void lustre_swab_lu_seq_range(struct lu_seq_range *range); static inline int lu_fid_eq(const struct lu_fid *f0, const struct lu_fid *f1) { /* Check that there is no alignment padding. */ CLASSERT(sizeof *f0 == sizeof f0->f_seq + sizeof f0->f_oid + sizeof f0->f_ver); LASSERTF((fid_is_igif(f0) || fid_is_idif(f0)) || fid_ver(f0) == 0, DFID, PFID(f0)); LASSERTF((fid_is_igif(f1) || fid_is_idif(f1)) || fid_ver(f1) == 0, DFID, PFID(f1)); return memcmp(f0, f1, sizeof *f0) == 0; } #define __diff_normalize(val0, val1) \ ({ \ typeof(val0) __val0 = (val0); \ typeof(val1) __val1 = (val1); \ \ (__val0 == __val1 ? 0 : __val0 > __val1 ? +1 : -1); \ }) static inline int lu_fid_cmp(const struct lu_fid *f0, const struct lu_fid *f1) { return __diff_normalize(fid_seq(f0), fid_seq(f1)) ?: __diff_normalize(fid_oid(f0), fid_oid(f1)) ?: __diff_normalize(fid_ver(f0), fid_ver(f1)); } /** @} lu_fid */ /** \defgroup lu_dir lu_dir * @{ */ /** * Enumeration of possible directory entry attributes. * * Attributes follow directory entry header in the order they appear in this * enumeration. */ enum lu_dirent_attrs { LUDA_FID = 0x0001, LUDA_TYPE = 0x0002, LUDA_64BITHASH = 0x0004, }; /** * Layout of readdir pages, as transmitted on wire. */ struct lu_dirent { /** valid if LUDA_FID is set. */ struct lu_fid lde_fid; /** a unique entry identifier: a hash or an offset. */ __u64 lde_hash; /** total record length, including all attributes. */ __u16 lde_reclen; /** name length */ __u16 lde_namelen; /** optional variable size attributes following this entry. * taken from enum lu_dirent_attrs. */ __u32 lde_attrs; /** name is followed by the attributes indicated in ->ldp_attrs, in * their natural order. After the last attribute, padding bytes are * added to make ->lde_reclen a multiple of 8. */ char lde_name[0]; }; /* * Definitions of optional directory entry attributes formats. * * Individual attributes do not have their length encoded in a generic way. It * is assumed that consumer of an attribute knows its format. This means that * it is impossible to skip over an unknown attribute, except by skipping over all * remaining attributes (by using ->lde_reclen), which is not too * constraining, because new server versions will append new attributes at * the end of an entry. */ /** * Fid directory attribute: a fid of an object referenced by the entry. This * will be almost always requested by the client and supplied by the server. * * Aligned to 8 bytes. */ /* To have compatibility with 1.8, lets have fid in lu_dirent struct. */ /** * File type. * * Aligned to 2 bytes. */ struct luda_type { __u16 lt_type; }; struct lu_dirpage { __u64 ldp_hash_start; __u64 ldp_hash_end; __u32 ldp_flags; __u32 ldp_pad0; struct lu_dirent ldp_entries[0]; }; enum lu_dirpage_flags { /** * dirpage contains no entry. */ LDF_EMPTY = 1 << 0, /** * last entry's lde_hash equals ldp_hash_end. */ LDF_COLLIDE = 1 << 1 }; static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp) { if (le32_to_cpu(dp->ldp_flags) & LDF_EMPTY) return NULL; else return dp->ldp_entries; } static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent) { struct lu_dirent *next; if (le16_to_cpu(ent->lde_reclen) != 0) next = ((void *)ent) + le16_to_cpu(ent->lde_reclen); else next = NULL; return next; } static inline int lu_dirent_calc_size(int namelen, __u16 attr) { int size; if (attr & LUDA_TYPE) { const unsigned align = sizeof(struct luda_type) - 1; size = (sizeof(struct lu_dirent) + namelen + align) & ~align; size += sizeof(struct luda_type); } else size = sizeof(struct lu_dirent) + namelen; return (size + 7) & ~7; } static inline int lu_dirent_size(struct lu_dirent *ent) { if (le16_to_cpu(ent->lde_reclen) == 0) { return lu_dirent_calc_size(le16_to_cpu(ent->lde_namelen), le32_to_cpu(ent->lde_attrs)); } return le16_to_cpu(ent->lde_reclen); } #define MDS_DIR_END_OFF 0xfffffffffffffffeULL /** * MDS_READPAGE page size * * This is the directory page size packed in MDS_READPAGE RPC. * It's different than CFS_PAGE_SIZE because the client needs to * access the struct lu_dirpage header packed at the beginning of * the "page" and without this there isn't any way to know find the * lu_dirpage header is if client and server CFS_PAGE_SIZE differ. */ #define LU_PAGE_SHIFT 12 #define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT) #define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1)) #define LU_PAGE_COUNT (1 << (CFS_PAGE_SHIFT - LU_PAGE_SHIFT)) /** @} lu_dir */ struct lustre_handle { __u64 cookie; }; #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL static inline int lustre_handle_is_used(struct lustre_handle *lh) { return lh->cookie != 0ull; } static inline int lustre_handle_equal(const struct lustre_handle *lh1, const struct lustre_handle *lh2) { return lh1->cookie == lh2->cookie; } static inline void lustre_handle_copy(struct lustre_handle *tgt, struct lustre_handle *src) { tgt->cookie = src->cookie; } /* flags for lm_flags */ #define MSGHDR_AT_SUPPORT 0x1 #define MSGHDR_CKSUM_INCOMPAT18 0x2 #define lustre_msg lustre_msg_v2 /* we depend on this structure to be 8-byte aligned */ /* this type is only endian-adjusted in lustre_unpack_msg() */ struct lustre_msg_v2 { __u32 lm_bufcount; __u32 lm_secflvr; __u32 lm_magic; __u32 lm_repsize; __u32 lm_cksum; __u32 lm_flags; __u32 lm_padding_2; __u32 lm_padding_3; __u32 lm_buflens[0]; }; /* without gss, ptlrpc_body is put at the first buffer. */ #define PTLRPC_NUM_VERSIONS 4 #define JOBSTATS_JOBID_SIZE 32 /* 32 bytes string */ struct ptlrpc_body_v3 { struct lustre_handle pb_handle; __u32 pb_type; __u32 pb_version; __u32 pb_opc; __u32 pb_status; __u64 pb_last_xid; __u64 pb_last_seen; __u64 pb_last_committed; __u64 pb_transno; __u32 pb_flags; __u32 pb_op_flags; __u32 pb_conn_cnt; __u32 pb_timeout; /* for req, the deadline, for rep, the service est */ __u32 pb_service_time; /* for rep, actual service time */ __u32 pb_limit; __u64 pb_slv; /* VBR: pre-versions */ __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS]; /* padding for future needs */ __u64 pb_padding[4]; char pb_jobid[JOBSTATS_JOBID_SIZE]; }; #define ptlrpc_body ptlrpc_body_v3 struct ptlrpc_body_v2 { struct lustre_handle pb_handle; __u32 pb_type; __u32 pb_version; __u32 pb_opc; __u32 pb_status; __u64 pb_last_xid; __u64 pb_last_seen; __u64 pb_last_committed; __u64 pb_transno; __u32 pb_flags; __u32 pb_op_flags; __u32 pb_conn_cnt; __u32 pb_timeout; /* for req, the deadline, for rep, the service est */ __u32 pb_service_time; /* for rep, actual service time, also used for net_latency of req */ __u32 pb_limit; __u64 pb_slv; /* VBR: pre-versions */ __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS]; /* padding for future needs */ __u64 pb_padding[4]; }; extern void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb); /* message body offset for lustre_msg_v2 */ /* ptlrpc body offset in all request/reply messages */ #define MSG_PTLRPC_BODY_OFF 0 /* normal request/reply message record offset */ #define REQ_REC_OFF 1 #define REPLY_REC_OFF 1 /* ldlm request message body offset */ #define DLM_LOCKREQ_OFF 1 /* lockreq offset */ #define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */ /* ldlm intent lock message body offset */ #define DLM_INTENT_IT_OFF 2 /* intent lock it offset */ #define DLM_INTENT_REC_OFF 3 /* intent lock record offset */ /* ldlm reply message body offset */ #define DLM_LOCKREPLY_OFF 1 /* lockrep offset */ #define DLM_REPLY_REC_OFF 2 /* reply record offset */ /** only use in req->rq_{req,rep}_swab_mask */ #define MSG_PTLRPC_HEADER_OFF 31 /* Flags that are operation-specific go in the top 16 bits. */ #define MSG_OP_FLAG_MASK 0xffff0000 #define MSG_OP_FLAG_SHIFT 16 /* Flags that apply to all requests are in the bottom 16 bits */ #define MSG_GEN_FLAG_MASK 0x0000ffff #define MSG_LAST_REPLAY 0x0001 #define MSG_RESENT 0x0002 #define MSG_REPLAY 0x0004 /* #define MSG_AT_SUPPORT 0x0008 * This was used in early prototypes of adaptive timeouts, and while there * shouldn't be any users of that code there also isn't a need for using this * bits. Defer usage until at least 1.10 to avoid potential conflict. */ #define MSG_DELAY_REPLAY 0x0010 #define MSG_VERSION_REPLAY 0x0020 #define MSG_REQ_REPLAY_DONE 0x0040 #define MSG_LOCK_REPLAY_DONE 0x0080 /* * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT) */ #define MSG_CONNECT_RECOVERING 0x00000001 #define MSG_CONNECT_RECONNECT 0x00000002 #define MSG_CONNECT_REPLAYABLE 0x00000004 //#define MSG_CONNECT_PEER 0x8 #define MSG_CONNECT_LIBCLIENT 0x00000010 #define MSG_CONNECT_INITIAL 0x00000020 #define MSG_CONNECT_ASYNC 0x00000040 #define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */ #define MSG_CONNECT_TRANSNO 0x00000100 /* report transno */ /* Connect flags */ #define OBD_CONNECT_RDONLY 0x1ULL /*client has read-only access*/ #define OBD_CONNECT_INDEX 0x2ULL /*connect specific LOV idx */ #define OBD_CONNECT_MDS 0x4ULL /*connect from MDT to OST */ #define OBD_CONNECT_GRANT 0x8ULL /*OSC gets grant at connect */ #define OBD_CONNECT_SRVLOCK 0x10ULL /*server takes locks for cli */ #define OBD_CONNECT_VERSION 0x20ULL /*Lustre versions in ocd */ #define OBD_CONNECT_REQPORTAL 0x40ULL /*Separate non-IO req portal */ #define OBD_CONNECT_ACL 0x80ULL /*access control lists */ #define OBD_CONNECT_XATTR 0x100ULL /*client use extended attr */ #define OBD_CONNECT_CROW 0x200ULL /*MDS+OST create obj on write*/ #define OBD_CONNECT_TRUNCLOCK 0x400ULL /*locks on server for punch */ #define OBD_CONNECT_TRANSNO 0x800ULL /*replay sends init transno */ #define OBD_CONNECT_IBITS 0x1000ULL /*support for inodebits locks*/ #define OBD_CONNECT_JOIN 0x2000ULL /*files can be concatenated. *We do not support JOIN FILE *anymore, reserve this flags *just for preventing such bit *to be reused.*/ #define OBD_CONNECT_ATTRFID 0x4000ULL /*Server can GetAttr By Fid*/ #define OBD_CONNECT_NODEVOH 0x8000ULL /*No open hndl on specl nodes*/ #define OBD_CONNECT_RMT_CLIENT 0x10000ULL /*Remote client */ #define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /*Remote client by force */ #define OBD_CONNECT_BRW_SIZE 0x40000ULL /*Max bytes per rpc */ #define OBD_CONNECT_QUOTA64 0x80000ULL /*Not used since 2.4 */ #define OBD_CONNECT_MDS_CAPA 0x100000ULL /*MDS capability */ #define OBD_CONNECT_OSS_CAPA 0x200000ULL /*OSS capability */ #define OBD_CONNECT_CANCELSET 0x400000ULL /*Early batched cancels. */ #define OBD_CONNECT_SOM 0x800000ULL /*Size on MDS */ #define OBD_CONNECT_AT 0x1000000ULL /*client uses AT */ #define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /*LRU resize feature. */ #define OBD_CONNECT_MDS_MDS 0x4000000ULL /*MDS-MDS connection */ #define OBD_CONNECT_REAL 0x8000000ULL /*real connection */ #define OBD_CONNECT_CHANGE_QS 0x10000000ULL /*Not used since 2.4 */ #define OBD_CONNECT_CKSUM 0x20000000ULL /*support several cksum algos*/ #define OBD_CONNECT_FID 0x40000000ULL /*FID is supported by server */ #define OBD_CONNECT_VBR 0x80000000ULL /*version based recovery */ #define OBD_CONNECT_LOV_V3 0x100000000ULL /*client supports LOV v3 EA */ #define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* support grant shrink */ #define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* don't reuse orphan objids */ #define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* preserved for large EA */ #define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */ #define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client uses layout lock */ #define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits * directory hash */ #define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */ #define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recovery support */ #define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* jobid in ptlrpc_body */ #define OBD_CONNECT_UMASK 0x40000000000ULL /* create uses client umask */ #define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS * RPC error properly */ #define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for * finer space reservation */ #define OBD_CONNECT_NANOSEC_TIME 0x200000000000ULL /* nanosecond timestamps */ #define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable type of LVB */ #define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */ #define OBD_CONNECT_SHORTIO 0x2000000000000ULL/* short io */ /* XXX README XXX: * Please DO NOT add flag values here before first ensuring that this same * flag value is not in use on some other branch. Please clear any such * changes with senior engineers before starting to use a new flag. Then, * submit a small patch against EVERY branch that ONLY adds the new flag * and updates obd_connect_names[] for lprocfs_rd_connect_flags(), so it * can be approved and landed easily to reserve the flag for future use. */ /* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS * connection. It is a temporary bug fix for Imperative Recovery interop * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for * 2.2 clients/servers is no longer needed. LU-1252/LU-1644. */ #define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS #define OCD_HAS_FLAG(ocd, flg) \ (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg)) #ifdef HAVE_LRU_RESIZE_SUPPORT #define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE #else #define LRU_RESIZE_CONNECT_FLAG 0 #endif #define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \ OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \ OBD_CONNECT_IBITS | \ OBD_CONNECT_NODEVOH | OBD_CONNECT_ATTRFID | \ OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \ OBD_CONNECT_RMT_CLIENT | \ OBD_CONNECT_RMT_CLIENT_FORCE | \ OBD_CONNECT_BRW_SIZE | OBD_CONNECT_MDS_CAPA | \ OBD_CONNECT_OSS_CAPA | OBD_CONNECT_MDS_MDS | \ OBD_CONNECT_FID | LRU_RESIZE_CONNECT_FLAG | \ OBD_CONNECT_VBR | OBD_CONNECT_LOV_V3 | \ OBD_CONNECT_SOM | OBD_CONNECT_FULL20 | \ OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \ OBD_CONNECT_EINPROGRESS | \ OBD_CONNECT_LIGHTWEIGHT) #define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \ OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \ OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \ OBD_CONNECT_BRW_SIZE | OBD_CONNECT_OSS_CAPA | \ OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \ LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_CKSUM | \ OBD_CONNECT_RMT_CLIENT | \ OBD_CONNECT_RMT_CLIENT_FORCE | OBD_CONNECT_VBR | \ OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \ OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 | \ OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \ OBD_CONNECT_MAX_EASIZE | \ OBD_CONNECT_EINPROGRESS | \ OBD_CONNECT_JOBSTATS | OBD_CONNECT_LIGHTWEIGHT) #define ECHO_CONNECT_SUPPORTED (0) #define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \ OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \ OBD_CONNECT_MNE_SWAB) /* Features required for this version of the client to work with server */ #define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \ OBD_CONNECT_FULL20) #define OBD_OCD_VERSION(major,minor,patch,fix) (((major)<<24) + ((minor)<<16) +\ ((patch)<<8) + (fix)) #define OBD_OCD_VERSION_MAJOR(version) ((int)((version)>>24)&255) #define OBD_OCD_VERSION_MINOR(version) ((int)((version)>>16)&255) #define OBD_OCD_VERSION_PATCH(version) ((int)((version)>>8)&255) #define OBD_OCD_VERSION_FIX(version) ((int)(version)&255) /* This structure is used for both request and reply. * * If we eventually have separate connect data for different types, which we * almost certainly will, then perhaps we stick a union in here. */ struct obd_connect_data_v1 { __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */ __u32 ocd_version; /* lustre release version number */ __u32 ocd_grant; /* initial cache grant amount (bytes) */ __u32 ocd_index; /* LOV index to connect to */ __u32 ocd_brw_size; /* Maximum BRW size in bytes */ __u64 ocd_ibits_known; /* inode bits this client understands */ __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */ __u8 ocd_inodespace; /* log2 of the per-inode space consumption */ __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */ __u32 ocd_unused; /* also fix lustre_swab_connect */ __u64 ocd_transno; /* first transno from client to be replayed */ __u32 ocd_group; /* MDS group on OST */ __u32 ocd_cksum_types; /* supported checksum algorithms */ __u32 ocd_max_easize; /* How big LOV EA can be on MDS */ __u32 ocd_instance; /* also fix lustre_swab_connect */ __u64 ocd_maxbytes; /* Maximum stripe size in bytes */ }; struct obd_connect_data { __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */ __u32 ocd_version; /* lustre release version number */ __u32 ocd_grant; /* initial cache grant amount (bytes) */ __u32 ocd_index; /* LOV index to connect to */ __u32 ocd_brw_size; /* Maximum BRW size in bytes */ __u64 ocd_ibits_known; /* inode bits this client understands */ __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */ __u8 ocd_inodespace; /* log2 of the per-inode space consumption */ __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */ __u32 ocd_unused; /* also fix lustre_swab_connect */ __u64 ocd_transno; /* first transno from client to be replayed */ __u32 ocd_group; /* MDS group on OST */ __u32 ocd_cksum_types; /* supported checksum algorithms */ __u32 ocd_max_easize; /* How big LOV EA can be on MDS */ __u32 ocd_instance; /* instance # of this target */ __u64 ocd_maxbytes; /* Maximum stripe size in bytes */ /* Fields after ocd_maxbytes are only accessible by the receiver * if the corresponding flag in ocd_connect_flags is set. Accessing * any field after ocd_maxbytes on the receiver without a valid flag * may result in out-of-bound memory access and kernel oops. */ __u64 padding1; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding2; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding3; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding4; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding5; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding6; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding7; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding8; /* added 2.1.0. also fix lustre_swab_connect */ __u64 padding9; /* added 2.1.0. also fix lustre_swab_connect */ __u64 paddingA; /* added 2.1.0. also fix lustre_swab_connect */ __u64 paddingB; /* added 2.1.0. also fix lustre_swab_connect */ __u64 paddingC; /* added 2.1.0. also fix lustre_swab_connect */ __u64 paddingD; /* added 2.1.0. also fix lustre_swab_connect */ __u64 paddingE; /* added 2.1.0. also fix lustre_swab_connect */ __u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */ }; /* XXX README XXX: * Please DO NOT use any fields here before first ensuring that this same * field is not in use on some other branch. Please clear any such changes * with senior engineers before starting to use a new field. Then, submit * a small patch against EVERY branch that ONLY adds the new field along with * the matching OBD_CONNECT flag, so that can be approved and landed easily to * reserve the flag for future use. */ extern void lustre_swab_connect(struct obd_connect_data *ocd); /* * Supported checksum algorithms. Up to 32 checksum types are supported. * (32-bit mask stored in obd_connect_data::ocd_cksum_types) * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new * algorithm and also the OBD_FL_CKSUM* flags. */ typedef enum { OBD_CKSUM_CRC32 = 0x00000001, OBD_CKSUM_ADLER = 0x00000002, OBD_CKSUM_CRC32C= 0x00000004, } cksum_type_t; /* * OST requests: OBDO & OBD request records */ /* opcodes */ typedef enum { OST_REPLY = 0, /* reply ? */ OST_GETATTR = 1, OST_SETATTR = 2, OST_READ = 3, OST_WRITE = 4, OST_CREATE = 5, OST_DESTROY = 6, OST_GET_INFO = 7, OST_CONNECT = 8, OST_DISCONNECT = 9, OST_PUNCH = 10, OST_OPEN = 11, OST_CLOSE = 12, OST_STATFS = 13, OST_SYNC = 16, OST_SET_INFO = 17, OST_QUOTACHECK = 18, OST_QUOTACTL = 19, OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */ OST_LAST_OPC } ost_cmd_t; #define OST_FIRST_OPC OST_REPLY enum obdo_flags { OBD_FL_INLINEDATA = 0x00000001, OBD_FL_OBDMDEXISTS = 0x00000002, OBD_FL_DELORPHAN = 0x00000004, /* if set in o_flags delete orphans */ OBD_FL_NORPC = 0x00000008, /* set in o_flags do in OSC not OST */ OBD_FL_IDONLY = 0x00000010, /* set in o_flags only adjust obj id*/ OBD_FL_RECREATE_OBJS= 0x00000020, /* recreate missing obj */ OBD_FL_DEBUG_CHECK = 0x00000040, /* echo client/server debug check */ OBD_FL_NO_USRQUOTA = 0x00000100, /* the object's owner is over quota */ OBD_FL_NO_GRPQUOTA = 0x00000200, /* the object's group is over quota */ OBD_FL_CREATE_CROW = 0x00000400, /* object should be create on write */ OBD_FL_SRVLOCK = 0x00000800, /* delegate DLM locking to server */ OBD_FL_CKSUM_CRC32 = 0x00001000, /* CRC32 checksum type */ OBD_FL_CKSUM_ADLER = 0x00002000, /* ADLER checksum type */ OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */ OBD_FL_CKSUM_RSVD2 = 0x00008000, /* for future cksum types */ OBD_FL_CKSUM_RSVD3 = 0x00010000, /* for future cksum types */ OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */ OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client. * XXX: obsoleted - reserved for old * clients prior than 2.2 */ OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */ OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */ /* Note that while these checksum values are currently separate bits, * in 2.x we can actually allow all values from 1-31 if we wanted. */ OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER | OBD_FL_CKSUM_CRC32C, /* mask for local-only flag, which won't be sent over network */ OBD_FL_LOCAL_MASK = 0xF0000000, }; #define LOV_MAGIC_V1 0x0BD10BD0 #define LOV_MAGIC LOV_MAGIC_V1 #define LOV_MAGIC_JOIN_V1 0x0BD20BD0 #define LOV_MAGIC_V3 0x0BD30BD0 /* * magic for fully defined striping * the idea is that we should have different magics for striping "hints" * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct * lov_mds_md_v[13]). at the moment the magics are used in wire protocol, * we can't just change it w/o long way preparation, but we still need a * mechanism to allow LOD to differentiate hint versus ready striping. * so, at the moment we do a trick: MDT knows what to expect from request * depending on the case (replay uses ready striping, non-replay req uses * hints), so MDT replaces magic with appropriate one and now LOD can * easily understand what's inside -bzzz */ #define LOV_MAGIC_V1_DEF 0x0CD10BD0 #define LOV_MAGIC_V3_DEF 0x0CD30BD0 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */ #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */ #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */ #define LOV_PATTERN_CMOBD 0x200 #define lov_ost_data lov_ost_data_v1 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/ __u64 l_object_id; /* OST object ID */ __u64 l_object_seq; /* OST object seq number */ __u32 l_ost_gen; /* generation of this l_ost_idx */ __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */ }; #define lov_mds_md lov_mds_md_v1 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */ __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */ __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ __u64 lmm_object_id; /* LOV object ID */ __u64 lmm_object_seq; /* LOV object seq number */ __u32 lmm_stripe_size; /* size of stripe in bytes */ /* lmm_stripe_count used to be __u32 */ __u16 lmm_stripe_count; /* num stripes in use for this object */ __u16 lmm_layout_gen; /* layout generation number */ struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */ }; /* extern void lustre_swab_lov_mds_md(struct lov_mds_md *llm); */ #define MAX_MD_SIZE (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data)) #define MIN_MD_SIZE (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data)) #define XATTR_NAME_ACL_ACCESS "system.posix_acl_access" #define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default" #define XATTR_USER_PREFIX "user." #define XATTR_TRUSTED_PREFIX "trusted." #define XATTR_SECURITY_PREFIX "security." #define XATTR_LUSTRE_PREFIX "lustre." #define XATTR_NAME_LOV "trusted.lov" #define XATTR_NAME_LMA "trusted.lma" #define XATTR_NAME_LMV "trusted.lmv" #define XATTR_NAME_LINK "trusted.link" #define XATTR_NAME_FID "trusted.fid" #define XATTR_NAME_VERSION "trusted.version" struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */ __u32 lmm_magic; /* magic number = LOV_MAGIC_V3 */ __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ __u64 lmm_object_id; /* LOV object ID */ __u64 lmm_object_seq; /* LOV object seq number */ __u32 lmm_stripe_size; /* size of stripe in bytes */ /* lmm_stripe_count used to be __u32 */ __u16 lmm_stripe_count; /* num stripes in use for this object */ __u16 lmm_layout_gen; /* layout generation number */ char lmm_pool_name[LOV_MAXPOOLNAME]; /* must be 32bit aligned */ struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */ }; #define OBD_MD_FLID (0x00000001ULL) /* object ID */ #define OBD_MD_FLATIME (0x00000002ULL) /* access time */ #define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */ #define OBD_MD_FLCTIME (0x00000008ULL) /* change time */ #define OBD_MD_FLSIZE (0x00000010ULL) /* size */ #define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */ #define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */ #define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */ #define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */ #define OBD_MD_FLUID (0x00000200ULL) /* user ID */ #define OBD_MD_FLGID (0x00000400ULL) /* group ID */ #define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */ #define OBD_MD_FLNLINK (0x00002000ULL) /* link count */ #define OBD_MD_FLGENER (0x00004000ULL) /* generation number */ /*#define OBD_MD_FLINLINE (0x00008000ULL) inline data. used until 1.6.5 */ #define OBD_MD_FLRDEV (0x00010000ULL) /* device number */ #define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */ #define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */ #define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */ #define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */ #define OBD_MD_FLQOS (0x00200000ULL) /* quality of service stats */ /*#define OBD_MD_FLOSCOPQ (0x00400000ULL) osc opaque data, never used */ #define OBD_MD_FLCOOKIE (0x00800000ULL) /* log cancellation cookie */ #define OBD_MD_FLGROUP (0x01000000ULL) /* group */ #define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */ #define OBD_MD_FLEPOCH (0x04000000ULL) /* ->ost write with ioepoch */ /* ->mds if epoch opens or closes */ #define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */ #define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */ #define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */ #define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */ #define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */ #define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */ #define OBD_MD_REINT (0x0000000200000000ULL) /* reintegrate oa */ #define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */ #define OBD_MD_MDTIDX (0x0000000800000000ULL) /* Get MDT index */ #define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */ #define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */ #define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */ #define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */ #define OBD_MD_FLRMTPERM (0x0000010000000000ULL) /* remote permission */ #define OBD_MD_FLMDSCAPA (0x0000020000000000ULL) /* MDS capability */ #define OBD_MD_FLOSSCAPA (0x0000040000000000ULL) /* OSS capability */ #define OBD_MD_FLCKSPLIT (0x0000080000000000ULL) /* Check split on server */ #define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */ #define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes * under lock */ #define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */ #define OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) /* lfs lsetfacl case */ #define OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) /* lfs lgetfacl case */ #define OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) /* lfs rsetfacl case */ #define OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) /* lfs rgetfacl case */ #define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */ #define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \ OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \ OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \ OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \ OBD_MD_FLGENER | OBD_MD_FLRDEV | OBD_MD_FLGROUP) /* don't forget obdo_fid which is way down at the bottom so it can * come after the definition of llog_cookie */ extern void lustre_swab_obd_statfs (struct obd_statfs *os); /* ost_body.data values for OST_BRW */ #define OBD_BRW_READ 0x01 #define OBD_BRW_WRITE 0x02 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE) #define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous * transfer and is not accounted in * the grant. */ #define OBD_BRW_CHECK 0x10 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */ #define OBD_BRW_GRANTED 0x40 /* the ost manages this */ #define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */ #define OBD_BRW_NOQUOTA 0x100 #define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */ #define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */ #define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */ #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */ #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */ #define OBD_OBJECT_EOF 0xffffffffffffffffULL #define OST_MIN_PRECREATE 32 #define OST_MAX_PRECREATE 20000 struct obd_ioobj { obd_id ioo_id; obd_seq ioo_seq; __u32 ioo_type; __u32 ioo_bufcnt; }; extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo); /* multiple of 8 bytes => can array */ struct niobuf_remote { __u64 offset; __u32 len; __u32 flags; }; extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr); /* lock value block communicated between the filter and llite */ /* OST_LVB_ERR_INIT is needed because the return code in rc is * negative, i.e. because ((MASK + rc) & MASK) != MASK. */ #define OST_LVB_ERR_INIT 0xffbadbad80000000ULL #define OST_LVB_ERR_MASK 0xffbadbad00000000ULL #define OST_LVB_IS_ERR(blocks) \ ((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK) #define OST_LVB_SET_ERR(blocks, rc) \ do { blocks = OST_LVB_ERR_INIT + rc; } while (0) #define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT) struct ost_lvb { __u64 lvb_size; obd_time lvb_mtime; obd_time lvb_atime; obd_time lvb_ctime; __u64 lvb_blocks; }; /* * lquota data structures */ #ifndef QUOTABLOCK_BITS #define QUOTABLOCK_BITS 10 #endif #ifndef QUOTABLOCK_SIZE #define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS) #endif #ifndef toqb #define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS) #endif /* The lquota_id structure is an union of all the possible identifier types that * can be used with quota, this includes: * - 64-bit user ID * - 64-bit group ID * - a FID which can be used for per-directory quota in the future */ union lquota_id { struct lu_fid qid_fid; /* FID for per-directory quota */ __u64 qid_uid; /* user identifier */ __u64 qid_gid; /* group identifier */ }; /* quotactl management */ struct obd_quotactl { __u32 qc_cmd; __u32 qc_type; /* see Q_* flag below */ __u32 qc_id; __u32 qc_stat; struct obd_dqinfo qc_dqinfo; struct obd_dqblk qc_dqblk; }; extern void lustre_swab_obd_quotactl(struct obd_quotactl *q); #define Q_QUOTACHECK 0x800100 /* deprecated as of 2.4 */ #define Q_INITQUOTA 0x800101 /* deprecated as of 2.4 */ #define Q_GETOINFO 0x800102 /* get obd quota info */ #define Q_GETOQUOTA 0x800103 /* get obd quotas */ #define Q_FINVALIDATE 0x800104 /* deprecated as of 2.4 */ #define Q_COPY(out, in, member) (out)->member = (in)->member #define QCTL_COPY(out, in) \ do { \ Q_COPY(out, in, qc_cmd); \ Q_COPY(out, in, qc_type); \ Q_COPY(out, in, qc_id); \ Q_COPY(out, in, qc_stat); \ Q_COPY(out, in, qc_dqinfo); \ Q_COPY(out, in, qc_dqblk); \ } while (0) /* Body of quota request used for quota acquire/release RPCs between quota * master (aka QMT) and slaves (ak QSD). */ struct quota_body { struct lu_fid qb_fid; /* FID of global index packing the pool ID * and type (data or metadata) as well as * the quota type (user or group). */ union lquota_id qb_id; /* uid or gid or directory FID */ __u32 qb_flags; /* see below */ __u32 qb_padding; __u64 qb_count; /* acquire/release count (kbytes/inodes) */ __u64 qb_usage; /* current slave usage (kbytes/inodes) */ __u64 qb_slv_ver; /* slave index file version */ struct lustre_handle qb_lockh; /* per-ID lock handle */ struct lustre_handle qb_glb_lockh; /* global lock handle */ __u64 qb_padding1[4]; }; /* When the quota_body is used in the reply of quota global intent * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */ #define qb_slv_fid qb_fid /* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in * quota reply */ #define qb_qunit qb_usage #define QUOTA_DQACQ_FL_ACQ 0x1 /* acquire quota */ #define QUOTA_DQACQ_FL_PREACQ 0x2 /* pre-acquire */ #define QUOTA_DQACQ_FL_REL 0x4 /* release quota */ #define QUOTA_DQACQ_FL_REPORT 0x8 /* report usage */ extern void lustre_swab_quota_body(struct quota_body *b); /* Quota types currently supported */ enum { LQUOTA_TYPE_USR = 0x00, /* maps to USRQUOTA */ LQUOTA_TYPE_GRP = 0x01, /* maps to GRPQUOTA */ LQUOTA_TYPE_MAX }; /* There are 2 different resource types on which a quota limit can be enforced: * - inodes on the MDTs * - blocks on the OSTs */ enum { LQUOTA_RES_MD = 0x01, /* skip 0 to avoid null oid in FID */ LQUOTA_RES_DT = 0x02, LQUOTA_LAST_RES, LQUOTA_FIRST_RES = LQUOTA_RES_MD }; #define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1) /* * Space accounting support * Format of an accounting record, providing disk usage information for a given * user or group */ struct lquota_acct_rec { /* 16 bytes */ __u64 bspace; /* current space in use */ __u64 ispace; /* current # inodes in use */ }; /* * Global quota index support * Format of a global record, providing global quota settings for a given quota * identifier */ struct lquota_glb_rec { /* 32 bytes */ __u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */ __u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */ __u64 qbr_time; /* grace time, in seconds */ __u64 qbr_granted; /* how much is granted to slaves, in #inodes or * kbytes */ }; /* * Slave index support * Format of a slave record, recording how much space is granted to a given * slave */ struct lquota_slv_rec { /* 8 bytes */ __u64 qsr_granted; /* space granted to the slave for the key=ID, * in #inodes or kbytes */ }; /* Data structures associated with the quota locks */ /* Glimpse descriptor used for the index & per-ID quota locks */ struct ldlm_gl_lquota_desc { union lquota_id gl_id; /* quota ID subject to the glimpse */ __u64 gl_flags; /* see LQUOTA_FL* below */ __u64 gl_ver; /* new index version */ __u64 gl_hardlimit; /* new hardlimit or qunit value */ __u64 gl_softlimit; /* new softlimit */ __u64 gl_pad1; __u64 gl_pad2; }; #define gl_qunit gl_hardlimit /* current qunit value used when * glimpsing per-ID quota locks */ /* quota glimpse flags */ #define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */ /* LVB used with quota (global and per-ID) locks */ struct lquota_lvb { __u64 lvb_flags; /* see LQUOTA_FL* above */ __u64 lvb_id_may_rel; /* space that might be released later */ __u64 lvb_id_rel; /* space released by the slave for this ID */ __u64 lvb_id_qunit; /* current qunit value */ __u64 lvb_pad1; }; /* LVB used with global quota lock */ #define lvb_glb_ver lvb_id_may_rel /* current version of the global index */ /* op codes */ typedef enum { QUOTA_DQACQ = 601, QUOTA_DQREL = 602, QUOTA_LAST_OPC } quota_cmd_t; #define QUOTA_FIRST_OPC QUOTA_DQACQ /* * MDS REQ RECORDS */ /* opcodes */ typedef enum { MDS_GETATTR = 33, MDS_GETATTR_NAME = 34, MDS_CLOSE = 35, MDS_REINT = 36, MDS_READPAGE = 37, MDS_CONNECT = 38, MDS_DISCONNECT = 39, MDS_GETSTATUS = 40, MDS_STATFS = 41, MDS_PIN = 42, MDS_UNPIN = 43, MDS_SYNC = 44, MDS_DONE_WRITING = 45, MDS_SET_INFO = 46, MDS_QUOTACHECK = 47, MDS_QUOTACTL = 48, MDS_GETXATTR = 49, MDS_SETXATTR = 50, /* obsolete, now it's MDS_REINT op */ MDS_WRITEPAGE = 51, MDS_IS_SUBDIR = 52, MDS_GET_INFO = 53, MDS_LAST_OPC } mds_cmd_t; #define MDS_FIRST_OPC MDS_GETATTR /* * Do not exceed 63 */ typedef enum { REINT_SETATTR = 1, REINT_CREATE = 2, REINT_LINK = 3, REINT_UNLINK = 4, REINT_RENAME = 5, REINT_OPEN = 6, REINT_SETXATTR = 7, // REINT_CLOSE = 8, // REINT_WRITE = 9, REINT_MAX } mds_reint_t, mdt_reint_t; extern void lustre_swab_generic_32s (__u32 *val); /* the disposition of the intent outlines what was executed */ #define DISP_IT_EXECD 0x00000001 #define DISP_LOOKUP_EXECD 0x00000002 #define DISP_LOOKUP_NEG 0x00000004 #define DISP_LOOKUP_POS 0x00000008 #define DISP_OPEN_CREATE 0x00000010 #define DISP_OPEN_OPEN 0x00000020 #define DISP_ENQ_COMPLETE 0x00400000 #define DISP_ENQ_OPEN_REF 0x00800000 #define DISP_ENQ_CREATE_REF 0x01000000 #define DISP_OPEN_LOCK 0x02000000 /* INODE LOCK PARTS */ #define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */ #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */ #define MDS_INODELOCK_OPEN 0x000004 /* For opened files */ #define MDS_INODELOCK_LAYOUT 0x000008 /* for layout */ /* Do not forget to increase MDS_INODELOCK_MAXSHIFT when adding new bits * XXX: MDS_INODELOCK_MAXSHIFT should be increased to 3 once the layout lock is * supported */ #define MDS_INODELOCK_MAXSHIFT 2 /* This FULL lock is useful to take on unlink sort of operations */ #define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1) extern void lustre_swab_ll_fid (struct ll_fid *fid); /* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2], * but was moved into name[1] along with the OID to avoid consuming the * name[2,3] fields that need to be used for the quota id (also a FID). */ enum { LUSTRE_RES_ID_SEQ_OFF = 0, LUSTRE_RES_ID_VER_OID_OFF = 1, LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */ LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2, LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3, LUSTRE_RES_ID_HSH_OFF = 3 }; #define MDS_STATUS_CONN 1 #define MDS_STATUS_LOV 2 /* mdt_thread_info.mti_flags. */ enum md_op_flags { /* The flag indicates Size-on-MDS attributes are changed. */ MF_SOM_CHANGE = (1 << 0), /* Flags indicates an epoch opens or closes. */ MF_EPOCH_OPEN = (1 << 1), MF_EPOCH_CLOSE = (1 << 2), MF_MDC_CANCEL_FID1 = (1 << 3), MF_MDC_CANCEL_FID2 = (1 << 4), MF_MDC_CANCEL_FID3 = (1 << 5), MF_MDC_CANCEL_FID4 = (1 << 6), /* There is a pending attribute update. */ MF_SOM_AU = (1 << 7), /* Cancel OST locks while getattr OST attributes. */ MF_GETATTR_LOCK = (1 << 8), }; #define MF_SOM_LOCAL_FLAGS (MF_SOM_CHANGE | MF_EPOCH_OPEN | MF_EPOCH_CLOSE) #define LUSTRE_BFLAG_UNCOMMITTED_WRITES 0x1 /* these should be identical to their EXT4_*_FL counterparts, they are * redefined here only to avoid dragging in fs/ext4/ext4.h */ #define LUSTRE_SYNC_FL 0x00000008 /* Synchronous updates */ #define LUSTRE_IMMUTABLE_FL 0x00000010 /* Immutable file */ #define LUSTRE_APPEND_FL 0x00000020 /* writes to file may only append */ #define LUSTRE_NOATIME_FL 0x00000080 /* do not update atime */ #define LUSTRE_DIRSYNC_FL 0x00010000 /* dirsync behaviour (dir only) */ #ifdef __KERNEL__ /* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values * for the client inode i_flags. The LUSTRE_*_FL are the Lustre wire * protocol equivalents of LDISKFS_*_FL values stored on disk, while * the S_* flags are kernel-internal values that change between kernel * versions. These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS. * See b=16526 for a full history. */ static inline int ll_ext_to_inode_flags(int flags) { return (((flags & LUSTRE_SYNC_FL) ? S_SYNC : 0) | ((flags & LUSTRE_NOATIME_FL) ? S_NOATIME : 0) | ((flags & LUSTRE_APPEND_FL) ? S_APPEND : 0) | #if defined(S_DIRSYNC) ((flags & LUSTRE_DIRSYNC_FL) ? S_DIRSYNC : 0) | #endif ((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0)); } static inline int ll_inode_to_ext_flags(int iflags) { return (((iflags & S_SYNC) ? LUSTRE_SYNC_FL : 0) | ((iflags & S_NOATIME) ? LUSTRE_NOATIME_FL : 0) | ((iflags & S_APPEND) ? LUSTRE_APPEND_FL : 0) | #if defined(S_DIRSYNC) ((iflags & S_DIRSYNC) ? LUSTRE_DIRSYNC_FL : 0) | #endif ((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0)); } #endif struct mdt_body { struct lu_fid fid1; struct lu_fid fid2; struct lustre_handle handle; __u64 valid; __u64 size; /* Offset, in the case of MDS_READPAGE */ obd_time mtime; obd_time atime; obd_time ctime; __u64 blocks; /* XID, in the case of MDS_READPAGE */ __u64 ioepoch; __u64 ino; __u32 fsuid; __u32 fsgid; __u32 capability; __u32 mode; __u32 uid; __u32 gid; __u32 flags; /* from vfs for pin/unpin, LUSTRE_BFLAG close */ __u32 rdev; __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */ __u32 generation; __u32 suppgid; __u32 eadatasize; __u32 aclsize; __u32 max_mdsize; __u32 max_cookiesize; __u32 uid_h; /* high 32-bits of uid, for FUID */ __u32 gid_h; /* high 32-bits of gid, for FUID */ __u32 padding_5; /* also fix lustre_swab_mdt_body */ __u64 padding_6; __u64 padding_7; __u64 padding_8; __u64 padding_9; __u64 padding_10; }; /* 216 */ extern void lustre_swab_mdt_body (struct mdt_body *b); struct mdt_ioepoch { struct lustre_handle handle; __u64 ioepoch; __u32 flags; __u32 padding; }; extern void lustre_swab_mdt_ioepoch (struct mdt_ioepoch *b); /* permissions for md_perm.mp_perm */ enum { CFS_SETUID_PERM = 0x01, CFS_SETGID_PERM = 0x02, CFS_SETGRP_PERM = 0x04, CFS_RMTACL_PERM = 0x08, CFS_RMTOWN_PERM = 0x10 }; /* inode access permission for remote user, the inode info are omitted, * for client knows them. */ struct mdt_remote_perm { __u32 rp_uid; __u32 rp_gid; __u32 rp_fsuid; __u32 rp_fsuid_h; __u32 rp_fsgid; __u32 rp_fsgid_h; __u32 rp_access_perm; /* MAY_READ/WRITE/EXEC */ __u32 rp_padding; }; extern void lustre_swab_mdt_remote_perm(struct mdt_remote_perm *p); struct mdt_rec_setattr { __u32 sa_opcode; __u32 sa_cap; __u32 sa_fsuid; __u32 sa_fsuid_h; __u32 sa_fsgid; __u32 sa_fsgid_h; __u32 sa_suppgid; __u32 sa_suppgid_h; __u32 sa_padding_1; __u32 sa_padding_1_h; struct lu_fid sa_fid; __u64 sa_valid; __u32 sa_uid; __u32 sa_gid; __u64 sa_size; __u64 sa_blocks; obd_time sa_mtime; obd_time sa_atime; obd_time sa_ctime; __u32 sa_attr_flags; __u32 sa_mode; __u32 sa_padding_2; __u32 sa_padding_3; __u32 sa_padding_4; __u32 sa_padding_5; }; extern void lustre_swab_mdt_rec_setattr (struct mdt_rec_setattr *sa); /* * Attribute flags used in mdt_rec_setattr::sa_valid. * The kernel's #defines for ATTR_* should not be used over the network * since the client and MDS may run different kernels (see bug 13828) * Therefore, we should only use MDS_ATTR_* attributes for sa_valid. */ #define MDS_ATTR_MODE 0x1ULL /* = 1 */ #define MDS_ATTR_UID 0x2ULL /* = 2 */ #define MDS_ATTR_GID 0x4ULL /* = 4 */ #define MDS_ATTR_SIZE 0x8ULL /* = 8 */ #define MDS_ATTR_ATIME 0x10ULL /* = 16 */ #define MDS_ATTR_MTIME 0x20ULL /* = 32 */ #define MDS_ATTR_CTIME 0x40ULL /* = 64 */ #define MDS_ATTR_ATIME_SET 0x80ULL /* = 128 */ #define MDS_ATTR_MTIME_SET 0x100ULL /* = 256 */ #define MDS_ATTR_FORCE 0x200ULL /* = 512, Not a change, but a change it */ #define MDS_ATTR_ATTR_FLAG 0x400ULL /* = 1024 */ #define MDS_ATTR_KILL_SUID 0x800ULL /* = 2048 */ #define MDS_ATTR_KILL_SGID 0x1000ULL /* = 4096 */ #define MDS_ATTR_CTIME_SET 0x2000ULL /* = 8192 */ #define MDS_ATTR_FROM_OPEN 0x4000ULL /* = 16384, called from open path, ie O_TRUNC */ #define MDS_ATTR_BLOCKS 0x8000ULL /* = 32768 */ #ifndef FMODE_READ #define FMODE_READ 00000001 #define FMODE_WRITE 00000002 #endif #define MDS_FMODE_CLOSED 00000000 #define MDS_FMODE_EXEC 00000004 /* IO Epoch is opened on a closed file. */ #define MDS_FMODE_EPOCH 01000000 /* IO Epoch is opened on a file truncate. */ #define MDS_FMODE_TRUNC 02000000 /* Size-on-MDS Attribute Update is pending. */ #define MDS_FMODE_SOM 04000000 #define MDS_OPEN_CREATED 00000010 #define MDS_OPEN_CROSS 00000020 #define MDS_OPEN_CREAT 00000100 #define MDS_OPEN_EXCL 00000200 #define MDS_OPEN_TRUNC 00001000 #define MDS_OPEN_APPEND 00002000 #define MDS_OPEN_SYNC 00010000 #define MDS_OPEN_DIRECTORY 00200000 #define MDS_OPEN_BY_FID 040000000 /* open_by_fid for known object */ #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */ #define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */ #define MDS_OPEN_JOIN_FILE 0400000000 /* open for join file. * We do not support JOIN FILE * anymore, reserve this flags * just for preventing such bit * to be reused. */ #define MDS_CREATE_RMT_ACL 01000000000 /* indicate create on remote server * with default ACL */ #define MDS_CREATE_SLAVE_OBJ 02000000000 /* indicate create slave object * actually, this is for create, not * conflict with other open flags */ #define MDS_OPEN_LOCK 04000000000 /* This open requires open lock */ #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */ #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */ #define MDS_OPEN_NORESTORE 0100000000000ULL /* Do not restore file at open */ #define MDS_OPEN_NEWSTRIPE 0200000000000ULL /* New stripe needed (restripe or * hsm restore) */ /* permission for create non-directory file */ #define MAY_CREATE (1 << 7) /* permission for create directory file */ #define MAY_LINK (1 << 8) /* permission for delete from the directory */ #define MAY_UNLINK (1 << 9) /* source's permission for rename */ #define MAY_RENAME_SRC (1 << 10) /* target's permission for rename */ #define MAY_RENAME_TAR (1 << 11) /* part (parent's) VTX permission check */ #define MAY_VTX_PART (1 << 12) /* full VTX permission check */ #define MAY_VTX_FULL (1 << 13) /* lfs rgetfacl permission check */ #define MAY_RGETFACL (1 << 14) enum { MDS_CHECK_SPLIT = 1 << 0, MDS_CROSS_REF = 1 << 1, MDS_VTX_BYPASS = 1 << 2, MDS_PERM_BYPASS = 1 << 3, MDS_SOM = 1 << 4, MDS_QUOTA_IGNORE = 1 << 5, MDS_CLOSE_CLEANUP = 1 << 6, MDS_KEEP_ORPHAN = 1 << 7, MDS_RECOV_OPEN = 1 << 8, }; /* instance of mdt_reint_rec */ struct mdt_rec_create { __u32 cr_opcode; __u32 cr_cap; __u32 cr_fsuid; __u32 cr_fsuid_h; __u32 cr_fsgid; __u32 cr_fsgid_h; __u32 cr_suppgid1; __u32 cr_suppgid1_h; __u32 cr_suppgid2; __u32 cr_suppgid2_h; struct lu_fid cr_fid1; struct lu_fid cr_fid2; struct lustre_handle cr_old_handle; /* handle in case of open replay */ obd_time cr_time; __u64 cr_rdev; __u64 cr_ioepoch; __u64 cr_padding_1; /* rr_blocks */ __u32 cr_mode; __u32 cr_bias; /* use of helpers set/get_mrc_cr_flags() is needed to access * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to * extend cr_flags size without breaking 1.8 compat */ __u32 cr_flags_l; /* for use with open, low 32 bits */ __u32 cr_flags_h; /* for use with open, high 32 bits */ __u32 cr_padding_3; /* rr_padding_3 */ __u32 cr_padding_4; /* rr_padding_4 */ }; static inline void set_mrc_cr_flags(struct mdt_rec_create *mrc, __u64 flags) { mrc->cr_flags_l = (__u32)(flags & 0xFFFFFFFFUll); mrc->cr_flags_h = (__u32)(flags >> 32); } static inline __u64 get_mrc_cr_flags(struct mdt_rec_create *mrc) { return ((__u64)(mrc->cr_flags_l) | ((__u64)mrc->cr_flags_h << 32)); } /* instance of mdt_reint_rec */ struct mdt_rec_link { __u32 lk_opcode; __u32 lk_cap; __u32 lk_fsuid; __u32 lk_fsuid_h; __u32 lk_fsgid; __u32 lk_fsgid_h; __u32 lk_suppgid1; __u32 lk_suppgid1_h; __u32 lk_suppgid2; __u32 lk_suppgid2_h; struct lu_fid lk_fid1; struct lu_fid lk_fid2; obd_time lk_time; __u64 lk_padding_1; /* rr_atime */ __u64 lk_padding_2; /* rr_ctime */ __u64 lk_padding_3; /* rr_size */ __u64 lk_padding_4; /* rr_blocks */ __u32 lk_bias; __u32 lk_padding_5; /* rr_mode */ __u32 lk_padding_6; /* rr_flags */ __u32 lk_padding_7; /* rr_padding_2 */ __u32 lk_padding_8; /* rr_padding_3 */ __u32 lk_padding_9; /* rr_padding_4 */ }; /* instance of mdt_reint_rec */ struct mdt_rec_unlink { __u32 ul_opcode; __u32 ul_cap; __u32 ul_fsuid; __u32 ul_fsuid_h; __u32 ul_fsgid; __u32 ul_fsgid_h; __u32 ul_suppgid1; __u32 ul_suppgid1_h; __u32 ul_suppgid2; __u32 ul_suppgid2_h; struct lu_fid ul_fid1; struct lu_fid ul_fid2; obd_time ul_time; __u64 ul_padding_2; /* rr_atime */ __u64 ul_padding_3; /* rr_ctime */ __u64 ul_padding_4; /* rr_size */ __u64 ul_padding_5; /* rr_blocks */ __u32 ul_bias; __u32 ul_mode; __u32 ul_padding_6; /* rr_flags */ __u32 ul_padding_7; /* rr_padding_2 */ __u32 ul_padding_8; /* rr_padding_3 */ __u32 ul_padding_9; /* rr_padding_4 */ }; /* instance of mdt_reint_rec */ struct mdt_rec_rename { __u32 rn_opcode; __u32 rn_cap; __u32 rn_fsuid; __u32 rn_fsuid_h; __u32 rn_fsgid; __u32 rn_fsgid_h; __u32 rn_suppgid1; __u32 rn_suppgid1_h; __u32 rn_suppgid2; __u32 rn_suppgid2_h; struct lu_fid rn_fid1; struct lu_fid rn_fid2; obd_time rn_time; __u64 rn_padding_1; /* rr_atime */ __u64 rn_padding_2; /* rr_ctime */ __u64 rn_padding_3; /* rr_size */ __u64 rn_padding_4; /* rr_blocks */ __u32 rn_bias; /* some operation flags */ __u32 rn_mode; /* cross-ref rename has mode */ __u32 rn_padding_5; /* rr_flags */ __u32 rn_padding_6; /* rr_padding_2 */ __u32 rn_padding_7; /* rr_padding_3 */ __u32 rn_padding_8; /* rr_padding_4 */ }; /* instance of mdt_reint_rec */ struct mdt_rec_setxattr { __u32 sx_opcode; __u32 sx_cap; __u32 sx_fsuid; __u32 sx_fsuid_h; __u32 sx_fsgid; __u32 sx_fsgid_h; __u32 sx_suppgid1; __u32 sx_suppgid1_h; __u32 sx_suppgid2; __u32 sx_suppgid2_h; struct lu_fid sx_fid; __u64 sx_padding_1; /* These three are rr_fid2 */ __u32 sx_padding_2; __u32 sx_padding_3; __u64 sx_valid; obd_time sx_time; __u64 sx_padding_5; /* rr_ctime */ __u64 sx_padding_6; /* rr_size */ __u64 sx_padding_7; /* rr_blocks */ __u32 sx_size; __u32 sx_flags; __u32 sx_padding_8; /* rr_flags */ __u32 sx_padding_9; /* rr_padding_2 */ __u32 sx_padding_10; /* rr_padding_3 */ __u32 sx_padding_11; /* rr_padding_4 */ }; /* * mdt_rec_reint is the template for all mdt_reint_xxx structures. * Do NOT change the size of various members, otherwise the value * will be broken in lustre_swab_mdt_rec_reint(). * * If you add new members in other mdt_reint_xxx structres and need to use the * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also. */ struct mdt_rec_reint { __u32 rr_opcode; __u32 rr_cap; __u32 rr_fsuid; __u32 rr_fsuid_h; __u32 rr_fsgid; __u32 rr_fsgid_h; __u32 rr_suppgid1; __u32 rr_suppgid1_h; __u32 rr_suppgid2; __u32 rr_suppgid2_h; struct lu_fid rr_fid1; struct lu_fid rr_fid2; obd_time rr_mtime; obd_time rr_atime; obd_time rr_ctime; __u64 rr_size; __u64 rr_blocks; __u32 rr_bias; __u32 rr_mode; __u32 rr_flags; __u32 rr_padding_2; /* also fix lustre_swab_mdt_rec_reint */ __u32 rr_padding_3; /* also fix lustre_swab_mdt_rec_reint */ __u32 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */ }; extern void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr); struct lmv_desc { __u32 ld_tgt_count; /* how many MDS's */ __u32 ld_active_tgt_count; /* how many active */ __u32 ld_default_stripe_count; /* how many objects are used */ __u32 ld_pattern; /* default MEA_MAGIC_* */ __u64 ld_default_hash_size; __u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */ __u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */ __u32 ld_qos_maxage; /* in second */ __u32 ld_padding_3; /* also fix lustre_swab_lmv_desc */ __u32 ld_padding_4; /* also fix lustre_swab_lmv_desc */ struct obd_uuid ld_uuid; }; extern void lustre_swab_lmv_desc (struct lmv_desc *ld); /* TODO: lmv_stripe_md should contain mds capabilities for all slave fids */ struct lmv_stripe_md { __u32 mea_magic; __u32 mea_count; __u32 mea_master; __u32 mea_padding; char mea_pool_name[LOV_MAXPOOLNAME]; struct lu_fid mea_ids[0]; }; extern void lustre_swab_lmv_stripe_md(struct lmv_stripe_md *mea); /* lmv structures */ #define MEA_MAGIC_LAST_CHAR 0xb2221ca1 #define MEA_MAGIC_ALL_CHARS 0xb222a11c #define MEA_MAGIC_HASH_SEGMENT 0xb222a11b #define MAX_HASH_SIZE_32 0x7fffffffUL #define MAX_HASH_SIZE 0x7fffffffffffffffULL #define MAX_HASH_HIGHEST_BIT 0x1000000000000000ULL enum fld_rpc_opc { FLD_QUERY = 900, FLD_LAST_OPC, FLD_FIRST_OPC = FLD_QUERY }; enum seq_rpc_opc { SEQ_QUERY = 700, SEQ_LAST_OPC, SEQ_FIRST_OPC = SEQ_QUERY }; enum seq_op { SEQ_ALLOC_SUPER = 0, SEQ_ALLOC_META = 1 }; /* * LOV data structures */ #define LOV_MAX_UUID_BUFFER_SIZE 8192 /* The size of the buffer the lov/mdc reserves for the * array of UUIDs returned by the MDS. With the current * protocol, this will limit the max number of OSTs per LOV */ #define LOV_DESC_MAGIC 0xB0CCDE5C /* LOV settings descriptor (should only contain static info) */ struct lov_desc { __u32 ld_tgt_count; /* how many OBD's */ __u32 ld_active_tgt_count; /* how many active */ __u32 ld_default_stripe_count; /* how many objects are used */ __u32 ld_pattern; /* default PATTERN_RAID0 */ __u64 ld_default_stripe_size; /* in bytes */ __u64 ld_default_stripe_offset; /* in bytes */ __u32 ld_padding_0; /* unused */ __u32 ld_qos_maxage; /* in second */ __u32 ld_padding_1; /* also fix lustre_swab_lov_desc */ __u32 ld_padding_2; /* also fix lustre_swab_lov_desc */ struct obd_uuid ld_uuid; }; #define ld_magic ld_active_tgt_count /* for swabbing from llogs */ extern void lustre_swab_lov_desc (struct lov_desc *ld); /* * LDLM requests: */ /* opcodes -- MUST be distinct from OST/MDS opcodes */ typedef enum { LDLM_ENQUEUE = 101, LDLM_CONVERT = 102, LDLM_CANCEL = 103, LDLM_BL_CALLBACK = 104, LDLM_CP_CALLBACK = 105, LDLM_GL_CALLBACK = 106, LDLM_SET_INFO = 107, LDLM_LAST_OPC } ldlm_cmd_t; #define LDLM_FIRST_OPC LDLM_ENQUEUE #define RES_NAME_SIZE 4 struct ldlm_res_id { __u64 name[RES_NAME_SIZE]; }; extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id); static inline int ldlm_res_eq(const struct ldlm_res_id *res0, const struct ldlm_res_id *res1) { return !memcmp(res0, res1, sizeof(*res0)); } /* lock types */ typedef enum { LCK_MINMODE = 0, LCK_EX = 1, LCK_PW = 2, LCK_PR = 4, LCK_CW = 8, LCK_CR = 16, LCK_NL = 32, LCK_GROUP = 64, LCK_COS = 128, LCK_MAXMODE } ldlm_mode_t; #define LCK_MODE_NUM 8 typedef enum { LDLM_PLAIN = 10, LDLM_EXTENT = 11, LDLM_FLOCK = 12, LDLM_IBITS = 13, LDLM_MAX_TYPE } ldlm_type_t; #define LDLM_MIN_TYPE LDLM_PLAIN struct ldlm_extent { __u64 start; __u64 end; __u64 gid; }; static inline int ldlm_extent_overlap(struct ldlm_extent *ex1, struct ldlm_extent *ex2) { return (ex1->start <= ex2->end) && (ex2->start <= ex1->end); } /* check if @ex1 contains @ex2 */ static inline int ldlm_extent_contain(struct ldlm_extent *ex1, struct ldlm_extent *ex2) { return (ex1->start <= ex2->start) && (ex1->end >= ex2->end); } struct ldlm_inodebits { __u64 bits; }; struct ldlm_flock_wire { __u64 lfw_start; __u64 lfw_end; __u64 lfw_owner; __u32 lfw_padding; __u32 lfw_pid; }; /* it's important that the fields of the ldlm_extent structure match * the first fields of the ldlm_flock structure because there is only * one ldlm_swab routine to process the ldlm_policy_data_t union. if * this ever changes we will need to swab the union differently based * on the resource type. */ typedef union { struct ldlm_extent l_extent; struct ldlm_flock_wire l_flock; struct ldlm_inodebits l_inodebits; } ldlm_wire_policy_data_t; extern void lustre_swab_ldlm_policy_data (ldlm_wire_policy_data_t *d); /* Similarly to ldlm_wire_policy_data_t, there is one common swabber for all * LVB types. As a result, any new LVB structure must match the fields of the * ost_lvb structure. */ union ldlm_wire_lvb { struct ost_lvb l_ost; struct lquota_lvb l_lquota; }; extern void lustre_swab_lvb(union ldlm_wire_lvb *); union ldlm_gl_desc { struct ldlm_gl_lquota_desc lquota_desc; }; extern void lustre_swab_gl_desc(union ldlm_gl_desc *); struct ldlm_intent { __u64 opc; }; extern void lustre_swab_ldlm_intent (struct ldlm_intent *i); struct ldlm_resource_desc { ldlm_type_t lr_type; __u32 lr_padding; /* also fix lustre_swab_ldlm_resource_desc */ struct ldlm_res_id lr_name; }; extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r); struct ldlm_lock_desc { struct ldlm_resource_desc l_resource; ldlm_mode_t l_req_mode; ldlm_mode_t l_granted_mode; ldlm_wire_policy_data_t l_policy_data; }; extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l); #define LDLM_LOCKREQ_HANDLES 2 #define LDLM_ENQUEUE_CANCEL_OFF 1 struct ldlm_request { __u32 lock_flags; __u32 lock_count; struct ldlm_lock_desc lock_desc; struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES]; }; extern void lustre_swab_ldlm_request (struct ldlm_request *rq); /* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available. * Otherwise, 2 are available. */ #define ldlm_request_bufsize(count,type) \ ({ \ int _avail = LDLM_LOCKREQ_HANDLES; \ _avail -= (type == LDLM_ENQUEUE ? LDLM_ENQUEUE_CANCEL_OFF : 0); \ sizeof(struct ldlm_request) + \ (count > _avail ? count - _avail : 0) * \ sizeof(struct lustre_handle); \ }) struct ldlm_reply { __u32 lock_flags; __u32 lock_padding; /* also fix lustre_swab_ldlm_reply */ struct ldlm_lock_desc lock_desc; struct lustre_handle lock_handle; __u64 lock_policy_res1; __u64 lock_policy_res2; }; extern void lustre_swab_ldlm_reply (struct ldlm_reply *r); /* * Opcodes for mountconf (mgs and mgc) */ typedef enum { MGS_CONNECT = 250, MGS_DISCONNECT, MGS_EXCEPTION, /* node died, etc. */ MGS_TARGET_REG, /* whenever target starts up */ MGS_TARGET_DEL, MGS_SET_INFO, MGS_CONFIG_READ, MGS_LAST_OPC } mgs_cmd_t; #define MGS_FIRST_OPC MGS_CONNECT #define MGS_PARAM_MAXLEN 1024 #define KEY_SET_INFO "set_info" struct mgs_send_param { char mgs_param[MGS_PARAM_MAXLEN]; }; /* We pass this info to the MGS so it can write config logs */ #define MTI_NAME_MAXLEN 64 #define MTI_PARAM_MAXLEN 4096 #define MTI_NIDS_MAX 32 struct mgs_target_info { __u32 mti_lustre_ver; __u32 mti_stripe_index; __u32 mti_config_ver; __u32 mti_flags; __u32 mti_nid_count; __u32 mti_instance; /* Running instance of target */ char mti_fsname[MTI_NAME_MAXLEN]; char mti_svname[MTI_NAME_MAXLEN]; char mti_uuid[sizeof(struct obd_uuid)]; __u64 mti_nids[MTI_NIDS_MAX]; /* host nids (lnet_nid_t)*/ char mti_params[MTI_PARAM_MAXLEN]; }; extern void lustre_swab_mgs_target_info(struct mgs_target_info *oinfo); struct mgs_nidtbl_entry { __u64 mne_version; /* table version of this entry */ __u32 mne_instance; /* target instance # */ __u32 mne_index; /* target index */ __u32 mne_length; /* length of this entry - by bytes */ __u8 mne_type; /* target type LDD_F_SV_TYPE_OST/MDT */ __u8 mne_nid_type; /* type of nid(mbz). for ipv6. */ __u8 mne_nid_size; /* size of each NID, by bytes */ __u8 mne_nid_count; /* # of NIDs in buffer */ union { lnet_nid_t nids[0]; /* variable size buffer for NIDs. */ } u; }; extern void lustre_swab_mgs_nidtbl_entry(struct mgs_nidtbl_entry *oinfo); struct mgs_config_body { char mcb_name[MTI_NAME_MAXLEN]; /* logname */ __u64 mcb_offset; /* next index of config log to request */ __u16 mcb_type; /* type of log: CONFIG_T_[CONFIG|RECOVER] */ __u8 mcb_reserved; __u8 mcb_bits; /* bits unit size of config log */ __u32 mcb_units; /* # of units for bulk transfer */ }; extern void lustre_swab_mgs_config_body(struct mgs_config_body *body); struct mgs_config_res { __u64 mcr_offset; /* index of last config log */ __u64 mcr_size; /* size of the log */ }; extern void lustre_swab_mgs_config_res(struct mgs_config_res *body); /* Config marker flags (in config log) */ #define CM_START 0x01 #define CM_END 0x02 #define CM_SKIP 0x04 #define CM_UPGRADE146 0x08 #define CM_EXCLUDE 0x10 #define CM_START_SKIP (CM_START | CM_SKIP) struct cfg_marker { __u32 cm_step; /* aka config version */ __u32 cm_flags; __u32 cm_vers; /* lustre release version number */ __u32 cm_padding; /* 64 bit align */ obd_time cm_createtime; /*when this record was first created */ obd_time cm_canceltime; /*when this record is no longer valid*/ char cm_tgtname[MTI_NAME_MAXLEN]; char cm_comment[MTI_NAME_MAXLEN]; }; extern void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size); /* * Opcodes for multiple servers. */ typedef enum { OBD_PING = 400, OBD_LOG_CANCEL, OBD_QC_CALLBACK, OBD_IDX_READ, OBD_LAST_OPC } obd_cmd_t; #define OBD_FIRST_OPC OBD_PING /* catalog of log objects */ /** Identifier for a single log object */ struct llog_logid { __u64 lgl_oid; __u64 lgl_oseq; __u32 lgl_ogen; } __attribute__((packed)); /** Records written to the CATALOGS list */ #define CATLIST "CATALOGS" struct llog_catid { struct llog_logid lci_logid; __u32 lci_padding1; __u32 lci_padding2; __u32 lci_padding3; } __attribute__((packed)); /* Log data record types - there is no specific reason that these need to * be related to the RPC opcodes, but no reason not to (may be handy later?) */ #define LLOG_OP_MAGIC 0x10600000 #define LLOG_OP_MASK 0xfff00000 typedef enum { LLOG_PAD_MAGIC = LLOG_OP_MAGIC | 0x00000, OST_SZ_REC = LLOG_OP_MAGIC | 0x00f00, /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */ MDS_UNLINK_REC = LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) | REINT_UNLINK, /* obsolete after 2.5.0 */ MDS_UNLINK64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) | REINT_UNLINK, /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */ MDS_SETATTR64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) | REINT_SETATTR, OBD_CFG_REC = LLOG_OP_MAGIC | 0x20000, /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */ LLOG_GEN_REC = LLOG_OP_MAGIC | 0x40000, /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */ CHANGELOG_REC = LLOG_OP_MAGIC | 0x60000, CHANGELOG_USER_REC = LLOG_OP_MAGIC | 0x70000, LLOG_HDR_MAGIC = LLOG_OP_MAGIC | 0x45539, LLOG_LOGID_MAGIC = LLOG_OP_MAGIC | 0x4553b, } llog_op_type; #define LLOG_REC_HDR_NEEDS_SWABBING(r) \ (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC)) /** Log record header - stored in little endian order. * Each record must start with this struct, end with a llog_rec_tail, * and be a multiple of 256 bits in size. */ struct llog_rec_hdr { __u32 lrh_len; __u32 lrh_index; __u32 lrh_type; __u32 lrh_id; }; struct llog_rec_tail { __u32 lrt_len; __u32 lrt_index; }; struct llog_logid_rec { struct llog_rec_hdr lid_hdr; struct llog_logid lid_id; __u32 lid_padding1; __u64 lid_padding2; __u64 lid_padding3; struct llog_rec_tail lid_tail; } __attribute__((packed)); struct llog_unlink_rec { struct llog_rec_hdr lur_hdr; obd_id lur_oid; obd_count lur_oseq; obd_count lur_count; struct llog_rec_tail lur_tail; } __attribute__((packed)); struct llog_unlink64_rec { struct llog_rec_hdr lur_hdr; struct lu_fid lur_fid; obd_count lur_count; /* to destroy the lost precreated */ __u32 lur_padding1; __u64 lur_padding2; __u64 lur_padding3; struct llog_rec_tail lur_tail; } __attribute__((packed)); struct llog_setattr64_rec { struct llog_rec_hdr lsr_hdr; obd_id lsr_oid; obd_seq lsr_oseq; __u32 lsr_uid; __u32 lsr_uid_h; __u32 lsr_gid; __u32 lsr_gid_h; __u64 lsr_padding; struct llog_rec_tail lsr_tail; } __attribute__((packed)); struct llog_size_change_rec { struct llog_rec_hdr lsc_hdr; struct ll_fid lsc_fid; __u32 lsc_ioepoch; __u32 lsc_padding1; __u64 lsc_padding2; __u64 lsc_padding3; struct llog_rec_tail lsc_tail; } __attribute__((packed)); #define CHANGELOG_MAGIC 0xca103000 /** \a changelog_rec_type's that can't be masked */ #define CHANGELOG_MINMASK (1 << CL_MARK) /** bits covering all \a changelog_rec_type's */ #define CHANGELOG_ALLMASK 0XFFFFFFFF /** default \a changelog_rec_type mask */ #define CHANGELOG_DEFMASK CHANGELOG_ALLMASK & ~(1 << CL_ATIME | 1 << CL_CLOSE) /* changelog llog name, needed by client replicators */ #define CHANGELOG_CATALOG "changelog_catalog" struct changelog_setinfo { __u64 cs_recno; __u32 cs_id; } __attribute__((packed)); /** changelog record */ struct llog_changelog_rec { struct llog_rec_hdr cr_hdr; struct changelog_rec cr; struct llog_rec_tail cr_tail; /**< for_sizezof_only */ } __attribute__((packed)); struct llog_changelog_ext_rec { struct llog_rec_hdr cr_hdr; struct changelog_ext_rec cr; struct llog_rec_tail cr_tail; /**< for_sizezof_only */ } __attribute__((packed)); #define CHANGELOG_USER_PREFIX "cl" struct llog_changelog_user_rec { struct llog_rec_hdr cur_hdr; __u32 cur_id; __u32 cur_padding; __u64 cur_endrec; struct llog_rec_tail cur_tail; } __attribute__((packed)); /* Old llog gen for compatibility */ struct llog_gen { __u64 mnt_cnt; __u64 conn_cnt; } __attribute__((packed)); struct llog_gen_rec { struct llog_rec_hdr lgr_hdr; struct llog_gen lgr_gen; __u64 padding1; __u64 padding2; __u64 padding3; struct llog_rec_tail lgr_tail; }; /* On-disk header structure of each log object, stored in little endian order */ #define LLOG_CHUNK_SIZE 8192 #define LLOG_HEADER_SIZE (96) #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE) #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */ /* flags for the logs */ enum llog_flag { LLOG_F_ZAP_WHEN_EMPTY = 0x1, LLOG_F_IS_CAT = 0x2, LLOG_F_IS_PLAIN = 0x4, }; struct llog_log_hdr { struct llog_rec_hdr llh_hdr; obd_time llh_timestamp; __u32 llh_count; __u32 llh_bitmap_offset; __u32 llh_size; __u32 llh_flags; __u32 llh_cat_idx; /* for a catalog the first plain slot is next to it */ struct obd_uuid llh_tgtuuid; __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23]; __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)]; struct llog_rec_tail llh_tail; } __attribute__((packed)); #define LLOG_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \ llh->llh_bitmap_offset - \ sizeof(llh->llh_tail)) * 8) /** log cookies are used to reference a specific log file and a record therein */ struct llog_cookie { struct llog_logid lgc_lgl; __u32 lgc_subsys; __u32 lgc_index; __u32 lgc_padding; } __attribute__((packed)); /** llog protocol */ enum llogd_rpc_ops { LLOG_ORIGIN_HANDLE_CREATE = 501, LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502, LLOG_ORIGIN_HANDLE_READ_HEADER = 503, LLOG_ORIGIN_HANDLE_WRITE_REC = 504, LLOG_ORIGIN_HANDLE_CLOSE = 505, LLOG_ORIGIN_CONNECT = 506, LLOG_CATINFO = 507, /* deprecated */ LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508, LLOG_ORIGIN_HANDLE_DESTROY = 509, /* for destroy llog object*/ LLOG_LAST_OPC, LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE }; struct llogd_body { struct llog_logid lgd_logid; __u32 lgd_ctxt_idx; __u32 lgd_llh_flags; __u32 lgd_index; __u32 lgd_saved_index; __u32 lgd_len; __u64 lgd_cur_offset; } __attribute__((packed)); struct llogd_conn_body { struct llog_gen lgdc_gen; struct llog_logid lgdc_logid; __u32 lgdc_ctxt_idx; } __attribute__((packed)); /* Note: 64-bit types are 64-bit aligned in structure */ struct obdo { obd_valid o_valid; /* hot fields in this obdo */ struct ost_id o_oi; obd_id o_parent_seq; obd_size o_size; /* o_size-o_blocks == ost_lvb */ obd_time o_mtime; obd_time o_atime; obd_time o_ctime; obd_blocks o_blocks; /* brw: cli sent cached bytes */ obd_size o_grant; /* 32-bit fields start here: keep an even number of them via padding */ obd_blksize o_blksize; /* optimal IO blocksize */ obd_mode o_mode; /* brw: cli sent cache remain */ obd_uid o_uid; obd_gid o_gid; obd_flag o_flags; obd_count o_nlink; /* brw: checksum */ obd_count o_parent_oid; obd_count o_misc; /* brw: o_dropped */ __u64 o_ioepoch; /* epoch in ost writes */ __u32 o_stripe_idx; /* holds stripe idx */ __u32 o_parent_ver; struct lustre_handle o_handle; /* brw: lock handle to prolong * locks */ struct llog_cookie o_lcookie; /* destroy: unlink cookie from * MDS */ __u32 o_uid_h; __u32 o_gid_h; __u64 o_data_version; /* getattr: sum of iversion for * each stripe. * brw: grant space consumed on * the client for the write */ __u64 o_padding_4; __u64 o_padding_5; __u64 o_padding_6; }; #define o_id o_oi.oi_id #define o_seq o_oi.oi_seq #define o_dirty o_blocks #define o_undirty o_mode #define o_dropped o_misc #define o_cksum o_nlink #define o_grant_used o_data_version static inline void lustre_set_wire_obdo(struct obdo *wobdo, struct obdo *lobdo) { memcpy(wobdo, lobdo, sizeof(*lobdo)); wobdo->o_flags &= ~OBD_FL_LOCAL_MASK; } static inline void lustre_get_wire_obdo(struct obdo *lobdo, struct obdo *wobdo) { obd_flag local_flags = 0; if (lobdo->o_valid & OBD_MD_FLFLAGS) local_flags = lobdo->o_flags & OBD_FL_LOCAL_MASK; LASSERT(!(wobdo->o_flags & OBD_FL_LOCAL_MASK)); memcpy(lobdo, wobdo, sizeof(*lobdo)); if (local_flags != 0) { lobdo->o_valid |= OBD_MD_FLFLAGS; lobdo->o_flags &= ~OBD_FL_LOCAL_MASK; lobdo->o_flags |= local_flags; } } extern void lustre_swab_obdo (struct obdo *o); /* request structure for OST's */ struct ost_body { struct obdo oa; }; /* Key for FIEMAP to be used in get_info calls */ struct ll_fiemap_info_key { char name[8]; struct obdo oa; struct ll_user_fiemap fiemap; }; extern void lustre_swab_ost_body (struct ost_body *b); extern void lustre_swab_ost_last_id(obd_id *id); extern void lustre_swab_fiemap(struct ll_user_fiemap *fiemap); extern void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum); extern void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum); extern void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod, int stripe_count); extern void lustre_swab_lov_mds_md(struct lov_mds_md *lmm); /* llog_swab.c */ extern void lustre_swab_llogd_body (struct llogd_body *d); extern void lustre_swab_llog_hdr (struct llog_log_hdr *h); extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d); extern void lustre_swab_llog_rec(struct llog_rec_hdr *rec); struct lustre_cfg; extern void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg); /* Functions for dumping PTLRPC fields */ void dump_rniobuf(struct niobuf_remote *rnb); void dump_ioo(struct obd_ioobj *nb); void dump_obdo(struct obdo *oa); void dump_ost_body(struct ost_body *ob); void dump_rcs(__u32 *rc); #define IDX_INFO_MAGIC 0x3D37CC37 /* Index file transfer through the network. The server serializes the index into * a byte stream which is sent to the client via a bulk transfer */ struct idx_info { __u32 ii_magic; /* reply: see idx_info_flags below */ __u32 ii_flags; /* request & reply: number of lu_idxpage (to be) transferred */ __u16 ii_count; __u16 ii_pad0; /* request: requested attributes passed down to the iterator API */ __u32 ii_attrs; /* request & reply: index file identifier (FID) */ struct lu_fid ii_fid; /* reply: version of the index file before starting to walk the index. * Please note that the version can be modified at any time during the * transfer */ __u64 ii_version; /* request: hash to start with: * reply: hash of the first entry of the first lu_idxpage and hash * of the entry to read next if any */ __u64 ii_hash_start; __u64 ii_hash_end; /* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is * set */ __u16 ii_keysize; /* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC * is set */ __u16 ii_recsize; __u32 ii_pad1; __u64 ii_pad2; __u64 ii_pad3; }; extern void lustre_swab_idx_info(struct idx_info *ii); #define II_END_OFF MDS_DIR_END_OFF /* all entries have been read */ /* List of flags used in idx_info::ii_flags */ enum idx_info_flags { II_FL_NOHASH = 1 << 0, /* client doesn't care about hash value */ II_FL_VARKEY = 1 << 1, /* keys can be of variable size */ II_FL_VARREC = 1 << 2, /* records can be of variable size */ II_FL_NONUNQ = 1 << 3, /* index supports non-unique keys */ }; #define LIP_MAGIC 0x8A6D6B6C /* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */ struct lu_idxpage { /* 16-byte header */ __u32 lip_magic; __u16 lip_flags; __u16 lip_nr; /* number of entries in the container */ __u64 lip_pad0; /* additional padding for future use */ /* key/record pairs are stored in the remaining 4080 bytes. * depending upon the flags in idx_info::ii_flags, each key/record * pair might be preceded by: * - a hash value * - the key size (II_FL_VARKEY is set) * - the record size (II_FL_VARREC is set) * * For the time being, we only support fixed-size key & record. */ char lip_entries[0]; }; #define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries)) /* Gather all possible type associated with a 4KB container */ union lu_page { struct lu_dirpage lp_dir; /* for MDS_READPAGE */ struct lu_idxpage lp_idx; /* for OBD_IDX_READ */ char lp_array[LU_PAGE_SIZE]; }; /* security opcodes */ typedef enum { SEC_CTX_INIT = 801, SEC_CTX_INIT_CONT = 802, SEC_CTX_FINI = 803, SEC_LAST_OPC, SEC_FIRST_OPC = SEC_CTX_INIT } sec_cmd_t; /* * capa related definitions */ #define CAPA_HMAC_MAX_LEN 64 #define CAPA_HMAC_KEY_MAX_LEN 56 /* NB take care when changing the sequence of elements this struct, * because the offset info is used in find_capa() */ struct lustre_capa { struct lu_fid lc_fid; /** fid */ __u64 lc_opc; /** operations allowed */ __u64 lc_uid; /** file owner */ __u64 lc_gid; /** file group */ __u32 lc_flags; /** HMAC algorithm & flags */ __u32 lc_keyid; /** key# used for the capability */ __u32 lc_timeout; /** capa timeout value (sec) */ __u32 lc_expiry; /** expiry time (sec) */ __u8 lc_hmac[CAPA_HMAC_MAX_LEN]; /** HMAC */ } __attribute__((packed)); extern void lustre_swab_lustre_capa(struct lustre_capa *c); /** lustre_capa::lc_opc */ enum { CAPA_OPC_BODY_WRITE = 1<<0, /**< write object data */ CAPA_OPC_BODY_READ = 1<<1, /**< read object data */ CAPA_OPC_INDEX_LOOKUP = 1<<2, /**< lookup object fid */ CAPA_OPC_INDEX_INSERT = 1<<3, /**< insert object fid */ CAPA_OPC_INDEX_DELETE = 1<<4, /**< delete object fid */ CAPA_OPC_OSS_WRITE = 1<<5, /**< write oss object data */ CAPA_OPC_OSS_READ = 1<<6, /**< read oss object data */ CAPA_OPC_OSS_TRUNC = 1<<7, /**< truncate oss object */ CAPA_OPC_OSS_DESTROY = 1<<8, /**< destroy oss object */ CAPA_OPC_META_WRITE = 1<<9, /**< write object meta data */ CAPA_OPC_META_READ = 1<<10, /**< read object meta data */ }; #define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE) #define CAPA_OPC_MDS_ONLY \ (CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \ CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE) #define CAPA_OPC_OSS_ONLY \ (CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC | \ CAPA_OPC_OSS_DESTROY) #define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY #define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY) /* MDS capability covers object capability for operations of body r/w * (dir readpage/sendpage), index lookup/insert/delete and meta data r/w, * while OSS capability only covers object capability for operations of * oss data(file content) r/w/truncate. */ static inline int capa_for_mds(struct lustre_capa *c) { return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) != 0; } static inline int capa_for_oss(struct lustre_capa *c) { return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) == 0; } /* lustre_capa::lc_hmac_alg */ enum { CAPA_HMAC_ALG_SHA1 = 1, /**< sha1 algorithm */ CAPA_HMAC_ALG_MAX, }; #define CAPA_FL_MASK 0x00ffffff #define CAPA_HMAC_ALG_MASK 0xff000000 struct lustre_capa_key { __u64 lk_seq; /**< mds# */ __u32 lk_keyid; /**< key# */ __u32 lk_padding; __u8 lk_key[CAPA_HMAC_KEY_MAX_LEN]; /**< key */ } __attribute__((packed)); extern void lustre_swab_lustre_capa_key(struct lustre_capa_key *k); /** The link ea holds 1 \a link_ea_entry for each hardlink */ #define LINK_EA_MAGIC 0x11EAF1DFUL struct link_ea_header { __u32 leh_magic; __u32 leh_reccount; __u64 leh_len; /* total size */ /* future use */ __u32 padding1; __u32 padding2; }; /** Hardlink data is name and parent fid. * Stored in this crazy struct for maximum packing and endian-neutrality */ struct link_ea_entry { /** __u16 stored big-endian, unaligned */ unsigned char lee_reclen[2]; unsigned char lee_parent_fid[sizeof(struct lu_fid)]; char lee_name[0]; }__attribute__((packed)); /** fid2path request/reply structure */ struct getinfo_fid2path { struct lu_fid gf_fid; __u64 gf_recno; __u32 gf_linkno; __u32 gf_pathlen; char gf_path[0]; } __attribute__((packed)); void lustre_swab_fid2path (struct getinfo_fid2path *gf); #endif /** @} lustreidl */