* Use is subject to license terms.
*/
/*
+ * Copyright (c) 2011 Whamcloud, Inc.
+ */
+/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
};
enum lu_dirpage_flags {
- LDF_EMPTY = 1 << 0
+ /**
+ * 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)
#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 {
#define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client supports layout lock */
#define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits
* directory hash */
+#define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
/* also update obd_connect_names[] for lprocfs_rd_connect_flags()
* and lustre/utils/wirecheck.c */
#define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
- OBD_CONNECT_IBITS | OBD_CONNECT_JOIN | \
+ 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_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_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)
#define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
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_64BITHASH | OBD_CONNECT_MAXBYTES)
#define ECHO_CONNECT_SUPPORTED (0)
#define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
OBD_CONNECT_FULL20)
+/* 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)
*
* 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 */
+ __u32 ocd_nllu; /* non-local-lustre-user */
+ __u32 ocd_nllg; /* non-local-lustre-group */
+ __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 padding; /* 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 */
__u64 ocd_transno; /* first transno from client to be replayed */
__u32 ocd_group; /* MDS group on OST */
__u32 ocd_cksum_types; /* supported checksum algorithms */
- __u64 padding1; /* also fix lustre_swab_connect */
- __u64 padding2; /* also fix lustre_swab_connect */
+ __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
+ __u32 padding; /* also fix lustre_swab_connect */
+ __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 2.2.0. also fix lustre_swab_connect */
+ __u64 padding2; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 padding3; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 padding4; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 padding5; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 padding6; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 padding7; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 padding8; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 padding9; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 paddingA; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 paddingB; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 paddingC; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 paddingD; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 paddingE; /* added 2.2.0. also fix lustre_swab_connect */
+ __u64 paddingF; /* added 2.2.0. also fix lustre_swab_connect */
};
+
extern void lustre_swab_connect(struct obd_connect_data *ocd);
/*
OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client */
OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
+ OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */
OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER,