kp30.h

非常经典的一个分布式系统

#endif
#ifndef MAX
# define MAX(a,b) (((a)>(b)) ? (a): (b))
#endif

#define MKSTR(ptr) ((ptr))? (ptr) : ""

static inline int size_round4 (int val)
{
        return (val + 3) & (~0x3);
}

static inline int size_round (int val)
{
        return (val + 7) & (~0x7);
}

static inline int size_round16(int val)
{
        return (val + 0xf) & (~0xf);
}

static inline int size_round32(int val)
{
        return (val + 0x1f) & (~0x1f);
}

static inline int size_round0(int val)
{
        if (!val)
                return 0;
        return (val + 1 + 7) & (~0x7);
}

static inline size_t round_strlen(char *fset)
{
        return (size_t)size_round((int)strlen(fset) + 1);
}

#define LOGL(var,len,ptr)                                       \
do {                                                            \
        if (var)                                                \
                memcpy((char *)ptr, (const char *)var, len);    \
        ptr += size_round(len);                                 \
} while (0)

#define LOGU(var,len,ptr)                                       \
do {                                                            \
        if (var)                                                \
                memcpy((char *)var, (const char *)ptr, len);    \
        ptr += size_round(len);                                 \
} while (0)

#define LOGL0(var,len,ptr)                              \
do {                                                    \
        if (!len)                                       \
                break;                                  \
        memcpy((char *)ptr, (const char *)var, len);    \
        *((char *)(ptr) + len) = 0;                     \
        ptr += size_round(len + 1);                     \
} while (0)

/*
 * USER LEVEL STUFF BELOW
 */

#define LIBCFS_IOCTL_VERSION 0x0001000a

struct libcfs_ioctl_data {
        __u32 ioc_len;
        __u32 ioc_version;

        __u64 ioc_nid;
        __u64 ioc_u64[1];

        __u32 ioc_flags;
        __u32 ioc_count;
        __u32 ioc_net;
        __u32 ioc_u32[7];

        __u32 ioc_inllen1;
        char *ioc_inlbuf1;
        __u32 ioc_inllen2;
        char *ioc_inlbuf2;

        __u32 ioc_plen1; /* buffers in userspace */
        char *ioc_pbuf1;
        __u32 ioc_plen2; /* buffers in userspace */
        char *ioc_pbuf2;

        char ioc_bulk[0];
};


struct libcfs_ioctl_hdr {
        __u32 ioc_len;
        __u32 ioc_version;
};

struct libcfs_debug_ioctl_data
{
        struct libcfs_ioctl_hdr hdr;
        unsigned int subs;
        unsigned int debug;
};

#define LIBCFS_IOC_INIT(data)                           \
do {                                                    \
        memset(&data, 0, sizeof(data));                 \
        data.ioc_version = LIBCFS_IOCTL_VERSION;        \
        data.ioc_len = sizeof(data);                    \
} while (0)

/* FIXME check conflict with lustre_lib.h */
#define LIBCFS_IOC_DEBUG_MASK             _IOWR('f', 250, long)

static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
{
        int len = sizeof(*data);
        len += size_round(data->ioc_inllen1);
        len += size_round(data->ioc_inllen2);
        return len;
}

static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
{
        if (data->ioc_len > (1<<30)) {
                CERROR ("LIBCFS ioctl: ioc_len larger than 1<<30\n");
                return 1;
        }
        if (data->ioc_inllen1 > (1<<30)) {
                CERROR ("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n");
                return 1;
        }
        if (data->ioc_inllen2 > (1<<30)) {
                CERROR ("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n");
                return 1;
        }
        if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
                CERROR ("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
                return 1;
        }
        if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
                CERROR ("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
                return 1;
        }
        if (data->ioc_pbuf1 && !data->ioc_plen1) {
                CERROR ("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
                return 1;
        }
        if (data->ioc_pbuf2 && !data->ioc_plen2) {
                CERROR ("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
                return 1;
        }
        if (data->ioc_plen1 && !data->ioc_pbuf1) {
                CERROR ("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
                return 1;
        }
        if (data->ioc_plen2 && !data->ioc_pbuf2) {
                CERROR ("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
                return 1;
        }
        if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_len ) {
                CERROR ("LIBCFS ioctl: packlen != ioc_len\n");
                return 1;
        }
        if (data->ioc_inllen1 &&
            data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
                CERROR ("LIBCFS ioctl: inlbuf1 not 0 terminated\n");
                return 1;
        }
        if (data->ioc_inllen2 &&
            data->ioc_bulk[size_round(data->ioc_inllen1) +
                           data->ioc_inllen2 - 1] != '\0') {
                CERROR ("LIBCFS ioctl: inlbuf2 not 0 terminated\n");
                return 1;
        }
        return 0;
}

#ifndef __KERNEL__
static inline int libcfs_ioctl_pack(struct libcfs_ioctl_data *data, char **pbuf,
                                    int max)
{
        char *ptr;
        struct libcfs_ioctl_data *overlay;
        data->ioc_len = libcfs_ioctl_packlen(data);
        data->ioc_version = LIBCFS_IOCTL_VERSION;

        if (*pbuf && libcfs_ioctl_packlen(data) > max)
                return 1;
        if (*pbuf == NULL) {
                *pbuf = malloc(data->ioc_len);
        }
        if (!*pbuf)
                return 1;
        overlay = (struct libcfs_ioctl_data *)*pbuf;
        memcpy(*pbuf, data, sizeof(*data));

        ptr = overlay->ioc_bulk;
        if (data->ioc_inlbuf1)
                LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr);
        if (data->ioc_inlbuf2)
                LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr);
        if (libcfs_ioctl_is_invalid(overlay))
                return 1;

        return 0;
}

#else

extern int libcfs_ioctl_getdata(char *buf, char *end, void *arg);
extern int libcfs_ioctl_popdata(void *arg, void *buf, int size);

#endif

/* ioctls for manipulating snapshots 30- */
#define IOC_LIBCFS_TYPE                   'e'
#define IOC_LIBCFS_MIN_NR                 30
/* libcfs ioctls */
#define IOC_LIBCFS_PANIC                   _IOWR('e', 30, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_CLEAR_DEBUG             _IOWR('e', 31, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_MARK_DEBUG              _IOWR('e', 32, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_LWT_CONTROL             _IOWR('e', 33, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_LWT_SNAPSHOT            _IOWR('e', 34, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_LWT_LOOKUP_STRING       _IOWR('e', 35, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_MEMHOG                  _IOWR('e', 36, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_PING_TEST               _IOWR('e', 37, IOCTL_LIBCFS_TYPE)
/* lnet ioctls */
#define IOC_LIBCFS_GET_NI                  _IOWR('e', 50, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_FAIL_NID                _IOWR('e', 51, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_ADD_ROUTE               _IOWR('e', 52, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_DEL_ROUTE               _IOWR('e', 53, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_GET_ROUTE               _IOWR('e', 54, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_NOTIFY_ROUTER           _IOWR('e', 55, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_UNCONFIGURE             _IOWR('e', 56, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_PORTALS_COMPATIBILITY   _IOWR('e', 57, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_LNET_DIST               _IOWR('e', 58, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_CONFIGURE               _IOWR('e', 59, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_TESTPROTOCOMPAT         _IOWR('e', 60, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_PING                    _IOWR('e', 61, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_DEBUG_PEER              _IOWR('e', 62, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_LNETST                  _IOWR('e', 63, IOCTL_LIBCFS_TYPE)
/* lnd ioctls */
#define IOC_LIBCFS_REGISTER_MYNID          _IOWR('e', 70, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_CLOSE_CONNECTION        _IOWR('e', 71, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_PUSH_CONNECTION         _IOWR('e', 72, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_GET_CONN                _IOWR('e', 73, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_DEL_PEER                _IOWR('e', 74, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_ADD_PEER                _IOWR('e', 75, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_GET_PEER                _IOWR('e', 76, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_GET_TXDESC              _IOWR('e', 77, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_ADD_INTERFACE           _IOWR('e', 78, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_DEL_INTERFACE           _IOWR('e', 79, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_GET_INTERFACE           _IOWR('e', 80, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_GET_GMID                _IOWR('e', 81, IOCTL_LIBCFS_TYPE)

#define IOC_LIBCFS_MAX_NR                             81


enum {
        /* Only add to these values (i.e. don't ever change or redefine them):
         * network addresses depend on them... */
        QSWLND    = 1,
        SOCKLND   = 2,
        GMLND     = 3,
        PTLLND    = 4,
        O2IBLND   = 5,
        CIBLND    = 6,
        OPENIBLND = 7,
        IIBLND    = 8,
        LOLND     = 9,
        RALND     = 10,
        VIBLND    = 11,
        MXLND     = 12,
};

enum {
        DEBUG_DAEMON_START       =  1,
        DEBUG_DAEMON_STOP        =  2,
        DEBUG_DAEMON_PAUSE       =  3,
        DEBUG_DAEMON_CONTINUE    =  4,
};


enum cfg_record_type {
        PORTALS_CFG_TYPE = 1,
        LUSTRE_CFG_TYPE = 123,
};

typedef int (*cfg_record_cb_t)(enum cfg_record_type, int len, void *data);

/* lustre_id output helper macros */
#define DLID4   "%lu/%lu/%lu/%lu"

#define OLID4(id)                              \
    (unsigned long)(id)->li_fid.lf_id,         \
    (unsigned long)(id)->li_fid.lf_group,      \
    (unsigned long)(id)->li_stc.u.e3s.l3s_ino, \
    (unsigned long)(id)->li_stc.u.e3s.l3s_gen

#endif