LXR uboot/net/nfs.h

   1/*
   2 * (C) Masami Komiya <mkomiya@sonare.it> 2004
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#ifndef __NFS_H__
   8#define __NFS_H__
   9
  10#define SUNRPC_PORT     111
  11
  12#define PROG_PORTMAP    100000
  13#define PROG_NFS        100003
  14#define PROG_MOUNT      100005
  15
  16#define MSG_CALL        0
  17#define MSG_REPLY       1
  18
  19#define PORTMAP_GETPORT 3
  20
  21#define MOUNT_ADDENTRY  1
  22#define MOUNT_UMOUNTALL 4
  23
  24#define NFS_LOOKUP      4
  25#define NFS_READLINK    5
  26#define NFS_READ        6
  27
  28#define NFS3PROC_LOOKUP 3
  29
  30#define NFS_FHSIZE      32
  31#define NFS3_FHSIZE     64
  32
  33#define NFSERR_PERM     1
  34#define NFSERR_NOENT    2
  35#define NFSERR_ACCES    13
  36#define NFSERR_ISDIR    21
  37#define NFSERR_INVAL    22
  38
  39/*
  40 * Block size used for NFS read accesses.  A RPC reply packet (including  all
  41 * headers) must fit within a single Ethernet frame to avoid fragmentation.
  42 * However, if CONFIG_IP_DEFRAG is set, a bigger value could be used.  In any
  43 * case, most NFS servers are optimized for a power of 2.
  44 */
  45#define NFS_READ_SIZE   1024    /* biggest power of two that fits Ether frame */
  46
  47/* Values for Accept State flag on RPC answers (See: rfc1831) */
  48enum rpc_accept_stat {
  49        NFS_RPC_SUCCESS = 0,    /* RPC executed successfully */
  50        NFS_RPC_PROG_UNAVAIL = 1,       /* remote hasn't exported program */
  51        NFS_RPC_PROG_MISMATCH = 2,      /* remote can't support version # */
  52        NFS_RPC_PROC_UNAVAIL = 3,       /* program can't support procedure */
  53        NFS_RPC_GARBAGE_ARGS = 4,       /* procedure can't decode params */
  54        NFS_RPC_SYSTEM_ERR = 5  /* errors like memory allocation failure */
  55};
  56
  57struct rpc_t {
  58        union {
  59                uint8_t data[2048];
  60                struct {
  61                        uint32_t id;
  62                        uint32_t type;
  63                        uint32_t rpcvers;
  64                        uint32_t prog;
  65                        uint32_t vers;
  66                        uint32_t proc;
  67                        uint32_t data[1];
  68                } call;
  69                struct {
  70                        uint32_t id;
  71                        uint32_t type;
  72                        uint32_t rstatus;
  73                        uint32_t verifier;
  74                        uint32_t v2;
  75                        uint32_t astatus;
  76                        uint32_t data[NFS_READ_SIZE];
  77                } reply;
  78        } u;
  79} __attribute__((packed));
  80void nfs_start(void);   /* Begin NFS */
  81
  82
  83/**********************************************************************/
  84
  85#endif /* __NFS_H__ */
  86