diff options
Diffstat (limited to 'fs/orangefs/protocol.h')
| -rw-r--r-- | fs/orangefs/protocol.h | 681 |
1 files changed, 681 insertions, 0 deletions
diff --git a/fs/orangefs/protocol.h b/fs/orangefs/protocol.h new file mode 100644 index 000000000000..2fb3a63ae9ab --- /dev/null +++ b/fs/orangefs/protocol.h @@ -0,0 +1,681 @@ +#include <linux/spinlock_types.h> +#include <linux/types.h> +#include <linux/slab.h> + +extern struct client_debug_mask *cdm_array; +extern char *debug_help_string; +extern int help_string_initialized; +extern struct dentry *debug_dir; +extern struct dentry *help_file_dentry; +extern struct dentry *client_debug_dentry; +extern const struct file_operations debug_help_fops; +extern int client_all_index; +extern int client_verbose_index; +extern int cdm_element_count; +#define DEBUG_HELP_STRING_SIZE 4096 +#define HELP_STRING_UNINITIALIZED \ + "Client Debug Keywords are unknown until the first time\n" \ + "the client is started after boot.\n" +#define ORANGEFS_KMOD_DEBUG_HELP_FILE "debug-help" +#define ORANGEFS_KMOD_DEBUG_FILE "kernel-debug" +#define ORANGEFS_CLIENT_DEBUG_FILE "client-debug" +#define PVFS2_VERBOSE "verbose" +#define PVFS2_ALL "all" + +/* pvfs2-config.h ***********************************************************/ +#define PVFS2_VERSION_MAJOR 2 +#define PVFS2_VERSION_MINOR 9 +#define PVFS2_VERSION_SUB 0 + +/* khandle stuff ***********************************************************/ + +/* + * The 2.9 core will put 64 bit handles in here like this: + * 1234 0000 0000 5678 + * The 3.0 and beyond cores will put 128 bit handles in here like this: + * 1234 5678 90AB CDEF + * The kernel module will always use the first four bytes and + * the last four bytes as an inum. + */ +struct pvfs2_khandle { + unsigned char u[16]; +} __aligned(8); + +/* + * kernel version of an object ref. + */ +struct pvfs2_object_kref { + struct pvfs2_khandle khandle; + __s32 fs_id; + __s32 __pad1; +}; + +/* + * compare 2 khandles assumes little endian thus from large address to + * small address + */ +static inline int PVFS_khandle_cmp(const struct pvfs2_khandle *kh1, + const struct pvfs2_khandle *kh2) +{ + int i; + + for (i = 15; i >= 0; i--) { + if (kh1->u[i] > kh2->u[i]) + return 1; + if (kh1->u[i] < kh2->u[i]) + return -1; + } + + return 0; +} + +/* copy a khandle to a field of arbitrary size */ +static inline void PVFS_khandle_to(const struct pvfs2_khandle *kh, + void *p, int size) +{ + int i; + unsigned char *c = p; + + memset(p, 0, size); + + for (i = 0; i < 16 && i < size; i++) + c[i] = kh->u[i]; +} + +/* copy a khandle from a field of arbitrary size */ +static inline void PVFS_khandle_from(struct pvfs2_khandle *kh, + void *p, int size) +{ + int i; + unsigned char *c = p; + + memset(kh, 0, 16); + + for (i = 0; i < 16 && i < size; i++) + kh->u[i] = c[i]; +} + +/* pvfs2-types.h ************************************************************/ +typedef __u32 PVFS_uid; +typedef __u32 PVFS_gid; +typedef __s32 PVFS_fs_id; +typedef __u32 PVFS_permissions; +typedef __u64 PVFS_time; +typedef __s64 PVFS_size; +typedef __u64 PVFS_flags; +typedef __u64 PVFS_ds_position; +typedef __s32 PVFS_error; +typedef __s64 PVFS_offset; + +#define PVFS2_SUPER_MAGIC 0x20030528 +#define PVFS_ERROR_BIT (1 << 30) +#define PVFS_NON_ERRNO_ERROR_BIT (1 << 29) +#define IS_PVFS_ERROR(__error) ((__error)&(PVFS_ERROR_BIT)) +#define IS_PVFS_NON_ERRNO_ERROR(__error) \ +(((__error)&(PVFS_NON_ERRNO_ERROR_BIT)) && IS_PVFS_ERROR(__error)) +#define PVFS_ERROR_TO_ERRNO(__error) PVFS_get_errno_mapping(__error) + +/* 7 bits are used for the errno mapped error codes */ +#define PVFS_ERROR_CODE(__error) \ +((__error) & (__s32)(0x7f|PVFS_ERROR_BIT)) +#define PVFS_ERROR_CLASS(__error) \ +((__error) & ~((__s32)(0x7f|PVFS_ERROR_BIT|PVFS_NON_ERRNO_ERROR_BIT))) +#define PVFS_NON_ERRNO_ERROR_CODE(__error) \ +((__error) & (__s32)(127|PVFS_ERROR_BIT|PVFS_NON_ERRNO_ERROR_BIT)) + +/* PVFS2 error codes, compliments of asm/errno.h */ +#define PVFS_EPERM E(1) /* Operation not permitted */ +#define PVFS_ENOENT E(2) /* No such file or directory */ +#define PVFS_EINTR E(3) /* Interrupted system call */ +#define PVFS_EIO E(4) /* I/O error */ +#define PVFS_ENXIO E(5) /* No such device or address */ +#define PVFS_EBADF E(6) /* Bad file number */ +#define PVFS_EAGAIN E(7) /* Try again */ +#define PVFS_ENOMEM E(8) /* Out of memory */ +#define PVFS_EFAULT E(9) /* Bad address */ +#define PVFS_EBUSY E(10) /* Device or resource busy */ +#define PVFS_EEXIST E(11) /* File exists */ +#define PVFS_ENODEV E(12) /* No such device */ +#define PVFS_ENOTDIR E(13) /* Not a directory */ +#define PVFS_EISDIR E(14) /* Is a directory */ +#define PVFS_EINVAL E(15) /* Invalid argument */ +#define PVFS_EMFILE E(16) /* Too many open files */ +#define PVFS_EFBIG E(17) /* File too large */ +#define PVFS_ENOSPC E(18) /* No space left on device */ +#define PVFS_EROFS E(19) /* Read-only file system */ +#define PVFS_EMLINK E(20) /* Too many links */ +#define PVFS_EPIPE E(21) /* Broken pipe */ +#define PVFS_EDEADLK E(22) /* Resource deadlock would occur */ +#define PVFS_ENAMETOOLONG E(23) /* File name too long */ +#define PVFS_ENOLCK E(24) /* No record locks available */ +#define PVFS_ENOSYS E(25) /* Function not implemented */ +#define PVFS_ENOTEMPTY E(26) /* Directory not empty */ + /* +#define PVFS_ELOOP E(27) * Too many symbolic links encountered + */ +#define PVFS_EWOULDBLOCK E(28) /* Operation would block */ +#define PVFS_ENOMSG E(29) /* No message of desired type */ +#define PVFS_EUNATCH E(30) /* Protocol driver not attached */ +#define PVFS_EBADR E(31) /* Invalid request descriptor */ +#define PVFS_EDEADLOCK E(32) +#define PVFS_ENODATA E(33) /* No data available */ +#define PVFS_ETIME E(34) /* Timer expired */ +#define PVFS_ENONET E(35) /* Machine is not on the network */ +#define PVFS_EREMOTE E(36) /* Object is remote */ +#define PVFS_ECOMM E(37) /* Communication error on send */ +#define PVFS_EPROTO E(38) /* Protocol error */ +#define PVFS_EBADMSG E(39) /* Not a data message */ + /* +#define PVFS_EOVERFLOW E(40) * Value too large for defined data + * type + */ + /* +#define PVFS_ERESTART E(41) * Interrupted system call should be + * restarted + */ +#define PVFS_EMSGSIZE E(42) /* Message too long */ +#define PVFS_EPROTOTYPE E(43) /* Protocol wrong type for socket */ +#define PVFS_ENOPROTOOPT E(44) /* Protocol not available */ +#define PVFS_EPROTONOSUPPORT E(45) /* Protocol not supported */ + /* +#define PVFS_EOPNOTSUPP E(46) * Operation not supported on transport + * endpoint + */ +#define PVFS_EADDRINUSE E(47) /* Address already in use */ +#define PVFS_EADDRNOTAVAIL E(48) /* Cannot assign requested address */ +#define PVFS_ENETDOWN E(49) /* Network is down */ +#define PVFS_ENETUNREACH E(50) /* Network is unreachable */ + /* +#define PVFS_ENETRESET E(51) * Network dropped connection because + * of reset + */ +#define PVFS_ENOBUFS E(52) /* No buffer space available */ +#define PVFS_ETIMEDOUT E(53) /* Connection timed out */ +#define PVFS_ECONNREFUSED E(54) /* Connection refused */ +#define PVFS_EHOSTDOWN E(55) /* Host is down */ +#define PVFS_EHOSTUNREACH E(56) /* No route to host */ +#define PVFS_EALREADY E(57) /* Operation already in progress */ +#define PVFS_EACCES E(58) /* Access not allowed */ +#define PVFS_ECONNRESET E(59) /* Connection reset by peer */ +#define PVFS_ERANGE E(60) /* Math out of range or buf too small */ + +/***************** non-errno/pvfs2 specific error codes *****************/ +#define PVFS_ECANCEL (1|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_EDEVINIT (2|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_EDETAIL (3|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_EHOSTNTFD (4|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_EADDRNTFD (5|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_ENORECVR (6|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_ETRYAGAIN (7|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_ENOTPVFS (8|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) +#define PVFS_ESECURITY (9|(PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)) + +/* + * NOTE: PLEASE DO NOT ARBITRARILY ADD NEW ERRNO ERROR CODES! + * + * IF YOU CHOOSE TO ADD A NEW ERROR CODE (DESPITE OUR PLEA), YOU ALSO + * NEED TO INCREMENT PVFS_ERRNO MAX (BELOW) AND ADD A MAPPING TO A + * UNIX ERRNO VALUE IN THE MACROS BELOW (USED IN + * src/common/misc/errno-mapping.c and the kernel module) + */ +#define PVFS_ERRNO_MAX 61 + +#define PVFS_ERROR_BMI (1 << 7) /* BMI-specific error */ +#define PVFS_ERROR_TROVE (2 << 7) /* Trove-specific error */ +#define PVFS_ERROR_FLOW (3 << 7) +#define PVFS_ERROR_SM (4 << 7) /* state machine specific error */ +#define PVFS_ERROR_SCHED (5 << 7) +#define PVFS_ERROR_CLIENT (6 << 7) +#define PVFS_ERROR_DEV (7 << 7) /* device file interaction */ + +#define PVFS_ERROR_CLASS_BITS \ + (PVFS_ERROR_BMI | \ + PVFS_ERROR_TROVE | \ + PVFS_ERROR_FLOW | \ + PVFS_ERROR_SM | \ + PVFS_ERROR_SCHED | \ + PVFS_ERROR_CLIENT | \ + PVFS_ERROR_DEV) + +#define DECLARE_ERRNO_MAPPING() \ +__s32 PINT_errno_mapping[PVFS_ERRNO_MAX + 1] = { \ + 0, /* leave this one empty */ \ + EPERM, /* 1 */ \ + ENOENT, \ + EINTR, \ + EIO, \ + ENXIO, \ + EBADF, \ + EAGAIN, \ + ENOMEM, \ + EFAULT, \ + EBUSY, /* 10 */ \ + EEXIST, \ + ENODEV, \ + ENOTDIR, \ + EISDIR, \ + EINVAL, \ + EMFILE, \ + EFBIG, \ + ENOSPC, \ + EROFS, \ + EMLINK, /* 20 */ \ + EPIPE, \ + EDEADLK, \ + ENAMETOOLONG, \ + ENOLCK, \ + ENOSYS, \ + ENOTEMPTY, \ + ELOOP, \ + EWOULDBLOCK, \ + ENOMSG, \ + EUNATCH, /* 30 */ \ + EBADR, \ + EDEADLOCK, \ + ENODATA, \ + ETIME, \ + ENONET, \ + EREMOTE, \ + ECOMM, \ + EPROTO, \ + EBADMSG, \ + EOVERFLOW, /* 40 */ \ + ERESTART, \ + EMSGSIZE, \ + EPROTOTYPE, \ + ENOPROTOOPT, \ + EPROTONOSUPPORT, \ + EOPNOTSUPP, \ + EADDRINUSE, \ + EADDRNOTAVAIL, \ + ENETDOWN, \ + ENETUNREACH, /* 50 */ \ + ENETRESET, \ + ENOBUFS, \ + ETIMEDOUT, \ + ECONNREFUSED, \ + EHOSTDOWN, \ + EHOSTUNREACH, \ + EALREADY, \ + EACCES, \ + ECONNRESET, /* 59 */ \ + ERANGE, \ + 0 /* PVFS_ERRNO_MAX */ \ +}; \ +const char *PINT_non_errno_strerror_mapping[] = { \ + "Success", /* 0 */ \ + "Operation cancelled (possibly due to timeout)", \ + "Device initialization failed", \ + "Detailed per-server errors are available", \ + "Unknown host", \ + "No address associated with name", \ + "Unknown server error", \ + "Host name lookup failure", \ + "Path contains non-PVFS elements", \ + "Security error", \ +}; \ +__s32 PINT_non_errno_mapping[] = { \ + 0, /* leave this one empty */ \ + PVFS_ECANCEL, /* 1 */ \ + PVFS_EDEVINIT, /* 2 */ \ + PVFS_EDETAIL, /* 3 */ \ + PVFS_EHOSTNTFD, /* 4 */ \ + PVFS_EADDRNTFD, /* 5 */ \ + PVFS_ENORECVR, /* 6 */ \ + PVFS_ETRYAGAIN, /* 7 */ \ + PVFS_ENOTPVFS, /* 8 */ \ + PVFS_ESECURITY, /* 9 */ \ +} + +/* + * NOTE: PVFS_get_errno_mapping will convert a PVFS_ERROR_CODE to an + * errno value. If the error code is a pvfs2 specific error code + * (i.e. a PVFS_NON_ERRNO_ERROR_CODE), PVFS_get_errno_mapping will + * return an index into the PINT_non_errno_strerror_mapping array which + * can be used for getting the pvfs2 specific strerror message given + * the error code. if the value is not a recognized error code, the + * passed in value will be returned unchanged. + */ +#define DECLARE_ERRNO_MAPPING_AND_FN() \ +extern __s32 PINT_errno_mapping[]; \ +extern __s32 PINT_non_errno_mapping[]; \ +extern const char *PINT_non_errno_strerror_mapping[]; \ +__s32 PVFS_get_errno_mapping(__s32 error) \ +{ \ + __s32 ret = error, mask = 0; \ + __s32 positive = ((error > -1) ? 1 : 0); \ + if (IS_PVFS_NON_ERRNO_ERROR((positive ? error : -error))) { \ + mask = (PVFS_NON_ERRNO_ERROR_BIT | \ + PVFS_ERROR_BIT | \ + PVFS_ERROR_CLASS_BITS); \ + ret = PVFS_NON_ERRNO_ERROR_CODE(((positive ? \ + error : \ + abs(error))) & \ + ~mask); \ + } \ + else if (IS_PVFS_ERROR((positive ? error : -error))) { \ + mask = (PVFS_ERROR_BIT | \ + PVFS_ERROR_CLASS_BITS); \ + ret = PINT_errno_mapping[PVFS_ERROR_CODE(((positive ? \ + error : \ + abs(error))) & \ + ~mask)]; \ + } \ + return ret; \ +} \ +__s32 PVFS_errno_to_error(int err) \ +{ \ + __s32 e = 0; \ + \ + for (; e < PVFS_ERRNO_MAX; ++e) \ + if (PINT_errno_mapping[e] == err) \ + return e | PVFS_ERROR_BIT; \ + \ + return err; \ +} \ +DECLARE_ERRNO_MAPPING() + +/* permission bits */ +#define PVFS_O_EXECUTE (1 << 0) +#define PVFS_O_WRITE (1 << 1) +#define PVFS_O_READ (1 << 2) +#define PVFS_G_EXECUTE (1 << 3) +#define PVFS_G_WRITE (1 << 4) +#define PVFS_G_READ (1 << 5) +#define PVFS_U_EXECUTE (1 << 6) +#define PVFS_U_WRITE (1 << 7) +#define PVFS_U_READ (1 << 8) +/* no PVFS_U_VTX (sticky bit) */ +#define PVFS_G_SGID (1 << 10) +#define PVFS_U_SUID (1 << 11) + +/* definition taken from stdint.h */ +#define INT32_MAX (2147483647) +#define PVFS_ITERATE_START (INT32_MAX - 1) +#define PVFS_ITERATE_END (INT32_MAX - 2) +#define PVFS_READDIR_START PVFS_ITERATE_START +#define PVFS_READDIR_END PVFS_ITERATE_END +#define PVFS_IMMUTABLE_FL FS_IMMUTABLE_FL +#define PVFS_APPEND_FL FS_APPEND_FL +#define PVFS_NOATIME_FL FS_NOATIME_FL +#define PVFS_MIRROR_FL 0x01000000ULL +#define PVFS_O_EXECUTE (1 << 0) +#define PVFS_FS_ID_NULL ((__s32)0) +#define PVFS_ATTR_SYS_UID (1 << 0) +#define PVFS_ATTR_SYS_GID (1 << 1) +#define PVFS_ATTR_SYS_PERM (1 << 2) +#define PVFS_ATTR_SYS_ATIME (1 << 3) +#define PVFS_ATTR_SYS_CTIME (1 << 4) +#define PVFS_ATTR_SYS_MTIME (1 << 5) +#define PVFS_ATTR_SYS_TYPE (1 << 6) +#define PVFS_ATTR_SYS_ATIME_SET (1 << 7) +#define PVFS_ATTR_SYS_MTIME_SET (1 << 8) +#define PVFS_ATTR_SYS_SIZE (1 << 20) +#define PVFS_ATTR_SYS_LNK_TARGET (1 << 24) +#define PVFS_ATTR_SYS_DFILE_COUNT (1 << 25) +#define PVFS_ATTR_SYS_DIRENT_COUNT (1 << 26) +#define PVFS_ATTR_SYS_BLKSIZE (1 << 28) +#define PVFS_ATTR_SYS_MIRROR_COPIES_COUNT (1 << 29) +#define PVFS_ATTR_SYS_COMMON_ALL \ + (PVFS_ATTR_SYS_UID | \ + PVFS_ATTR_SYS_GID | \ + PVFS_ATTR_SYS_PERM | \ + PVFS_ATTR_SYS_ATIME | \ + PVFS_ATTR_SYS_CTIME | \ + PVFS_ATTR_SYS_MTIME | \ + PVFS_ATTR_SYS_TYPE) + +#define PVFS_ATTR_SYS_ALL_SETABLE \ +(PVFS_ATTR_SYS_COMMON_ALL-PVFS_ATTR_SYS_TYPE) + +#define PVFS_ATTR_SYS_ALL_NOHINT \ + (PVFS_ATTR_SYS_COMMON_ALL | \ + PVFS_ATTR_SYS_SIZE | \ + PVFS_ATTR_SYS_LNK_TARGET | \ + PVFS_ATTR_SYS_DFILE_COUNT | \ + PVFS_ATTR_SYS_MIRROR_COPIES_COUNT | \ + PVFS_ATTR_SYS_DIRENT_COUNT | \ + PVFS_ATTR_SYS_BLKSIZE) +#define PVFS_XATTR_REPLACE 0x2 +#define PVFS_XATTR_CREATE 0x1 +#define PVFS_MAX_SERVER_ADDR_LEN 256 +#define PVFS_NAME_MAX 256 +/* + * max extended attribute name len as imposed by the VFS and exploited for the + * upcall request types. + * NOTE: Please retain them as multiples of 8 even if you wish to change them + * This is *NECESSARY* for supporting 32 bit user-space binaries on a 64-bit + * kernel. Due to implementation within DBPF, this really needs to be + * PVFS_NAME_MAX, which it was the same value as, but no reason to let it + * break if that changes in the future. + */ +#define PVFS_MAX_XATTR_NAMELEN PVFS_NAME_MAX /* Not the same as + * XATTR_NAME_MAX defined + * by <linux/xattr.h> + */ +#define PVFS_MAX_XATTR_VALUELEN 8192 /* Not the same as XATTR_SIZE_MAX + * defined by <linux/xattr.h> + */ +#define PVFS_MAX_XATTR_LISTLEN 16 /* Not the same as XATTR_LIST_MAX + * defined by <linux/xattr.h> + */ +/* + * PVFS I/O operation types, used in both system and server interfaces. + */ +enum PVFS_io_type { + PVFS_IO_READ = 1, + PVFS_IO_WRITE = 2 +}; + +/* + * If this enum is modified the server parameters related to the precreate pool + * batch and low threshold sizes may need to be modified to reflect this + * change. + */ +enum pvfs2_ds_type { + PVFS_TYPE_NONE = 0, + PVFS_TYPE_METAFILE = (1 << 0), + PVFS_TYPE_DATAFILE = (1 << 1), + PVFS_TYPE_DIRECTORY = (1 << 2), + PVFS_TYPE_SYMLINK = (1 << 3), + PVFS_TYPE_DIRDATA = (1 << 4), + PVFS_TYPE_INTERNAL = (1 << 5) /* for the server's private use */ +}; + +/* + * PVFS_certificate simply stores a buffer with the buffer size. + * The buffer can be converted to an OpenSSL X509 struct for use. + */ +struct PVFS_certificate { + __u32 buf_size; + unsigned char *buf; +}; + +/* + * A credential identifies a user and is signed by the client/user + * private key. + */ +struct PVFS_credential { + __u32 userid; /* user id */ + __u32 num_groups; /* length of group_array */ + __u32 *group_array; /* groups for which the user is a member */ + char *issuer; /* alias of the issuing server */ + __u64 timeout; /* seconds after epoch to time out */ + __u32 sig_size; /* length of the signature in bytes */ + unsigned char *signature; /* digital signature */ + struct PVFS_certificate certificate; /* user certificate buffer */ +}; +#define extra_size_PVFS_credential (PVFS_REQ_LIMIT_GROUPS * \ + sizeof(__u32) + \ + PVFS_REQ_LIMIT_ISSUER + \ + PVFS_REQ_LIMIT_SIGNATURE + \ + extra_size_PVFS_certificate) + +/* This structure is used by the VFS-client interaction alone */ +struct PVFS_keyval_pair { + char key[PVFS_MAX_XATTR_NAMELEN]; + __s32 key_sz; /* __s32 for portable, fixed-size structures */ + __s32 val_sz; + char val[PVFS_MAX_XATTR_VALUELEN]; +}; + +/* pvfs2-sysint.h ***********************************************************/ +/* Describes attributes for a file, directory, or symlink. */ +struct PVFS_sys_attr_s { + __u32 owner; + __u32 group; + __u32 perms; + __u64 atime; + __u64 mtime; + __u64 ctime; + __s64 size; + + /* NOTE: caller must free if valid */ + char *link_target; + + /* Changed to __s32 so that size of structure does not change */ + __s32 dfile_count; + + /* Changed to __s32 so that size of structure does not change */ + __s32 distr_dir_servers_initial; + + /* Changed to __s32 so that size of structure does not change */ + __s32 distr_dir_servers_max; + + /* Changed to __s32 so that size of structure does not change */ + __s32 distr_dir_split_size; + + __u32 mirror_copies_count; + + /* NOTE: caller must free if valid */ + char *dist_name; + + /* NOTE: caller must free if valid */ + char *dist_params; + + __s64 dirent_count; + enum pvfs2_ds_type objtype; + __u64 flags; + __u32 mask; + __s64 blksize; +}; + +#define PVFS2_LOOKUP_LINK_NO_FOLLOW 0 +#define PVFS2_LOOKUP_LINK_FOLLOW 1 + +/* pint-dev.h ***************************************************************/ + +/* parameter structure used in PVFS_DEV_DEBUG ioctl command */ +struct dev_mask_info_s { + enum { + KERNEL_MASK, + CLIENT_MASK, + } mask_type; + __u64 mask_value; +}; + +struct dev_mask2_info_s { + __u64 mask1_value; + __u64 mask2_value; +}; + +/* pvfs2-util.h *************************************************************/ +#define PVFS_util_min(x1, x2) (((x1) > (x2)) ? (x2) : (x1)) +__s32 PVFS_util_translate_mode(int mode); + +/* pvfs2-debug.h ************************************************************/ +#include "pvfs2-debug.h" + +/* pvfs2-internal.h *********************************************************/ +#define llu(x) (unsigned long long)(x) +#define lld(x) (long long)(x) + +/* pint-dev-shared.h ********************************************************/ +#define PVFS_DEV_MAGIC 'k' + +#define PVFS2_READDIR_DEFAULT_DESC_COUNT 5 + +#define DEV_GET_MAGIC 0x1 +#define DEV_GET_MAX_UPSIZE 0x2 +#define DEV_GET_MAX_DOWNSIZE 0x3 +#define DEV_MAP 0x4 +#define DEV_REMOUNT_ALL 0x5 +#define DEV_DEBUG 0x6 +#define DEV_UPSTREAM 0x7 +#define DEV_CLIENT_MASK 0x8 +#define DEV_CLIENT_STRING 0x9 +#define DEV_MAX_NR 0xa + +/* supported ioctls, codes are with respect to user-space */ +enum { + PVFS_DEV_GET_MAGIC = _IOW(PVFS_DEV_MAGIC, DEV_GET_MAGIC, __s32), + PVFS_DEV_GET_MAX_UPSIZE = + _IOW(PVFS_DEV_MAGIC, DEV_GET_MAX_UPSIZE, __s32), + PVFS_DEV_GET_MAX_DOWNSIZE = + _IOW(PVFS_DEV_MAGIC, DEV_GET_MAX_DOWNSIZE, __s32), + PVFS_DEV_MAP = _IO(PVFS_DEV_MAGIC, DEV_MAP), + PVFS_DEV_REMOUNT_ALL = _IO(PVFS_DEV_MAGIC, DEV_REMOUNT_ALL), + PVFS_DEV_DEBUG = _IOR(PVFS_DEV_MAGIC, DEV_DEBUG, __s32), + PVFS_DEV_UPSTREAM = _IOW(PVFS_DEV_MAGIC, DEV_UPSTREAM, int), + PVFS_DEV_CLIENT_MASK = _IOW(PVFS_DEV_MAGIC, + DEV_CLIENT_MASK, + struct dev_mask2_info_s), + PVFS_DEV_CLIENT_STRING = _IOW(PVFS_DEV_MAGIC, + DEV_CLIENT_STRING, + char *), + PVFS_DEV_MAXNR = DEV_MAX_NR, +}; + +/* + * version number for use in communicating between kernel space and user + * space + */ +/* +#define PVFS_KERNEL_PROTO_VERSION \ + ((PVFS2_VERSION_MAJOR * 10000) + \ + (PVFS2_VERSION_MINOR * 100) + \ + PVFS2_VERSION_SUB) +*/ +#define PVFS_KERNEL_PROTO_VERSION 0 + +/* + * describes memory regions to map in the PVFS_DEV_MAP ioctl. + * NOTE: See devpvfs2-req.c for 32 bit compat structure. + * Since this structure has a variable-sized layout that is different + * on 32 and 64 bit platforms, we need to normalize to a 64 bit layout + * on such systems before servicing ioctl calls from user-space binaries + * that may be 32 bit! + */ +struct PVFS_dev_map_desc { + void *ptr; + __s32 total_size; + __s32 size; + __s32 count; +}; + +/* gossip.h *****************************************************************/ + +#ifdef GOSSIP_DISABLE_DEBUG +#define gossip_debug(mask, format, f...) do {} while (0) +#else +extern __u64 gossip_debug_mask; +extern struct client_debug_mask client_debug_mask; + +/* try to avoid function call overhead by checking masks in macro */ +#define gossip_debug(mask, format, f...) \ +do { \ + if (gossip_debug_mask & mask) \ + printk(format, ##f); \ +} while (0) +#endif /* GOSSIP_DISABLE_DEBUG */ + +/* do file and line number printouts w/ the GNU preprocessor */ +#define gossip_ldebug(mask, format, f...) \ + gossip_debug(mask, "%s: " format, __func__, ##f) + +#define gossip_err printk +#define gossip_lerr(format, f...) \ + gossip_err("%s line %d: " format, \ + __FILE__, \ + __LINE__, \ + ##f) |