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/* Block size used for NFS read accesses.  A RPC reply packet (including  all
  40 * headers) must fit within a single Ethernet frame to avoid fragmentation.
  41 * However, if CONFIG_IP_DEFRAG is set, the config file may want to use a
  42 * bigger value. In any case, most NFS servers are optimized for a power of 2.
  43 */
  44#ifdef CONFIG_NFS_READ_SIZE
  45#define NFS_READ_SIZE CONFIG_NFS_READ_SIZE
  46#else
  47#define NFS_READ_SIZE 1024 /* biggest power of two that fits Ether frame */
  48#endif
  49
  50/* Values for Accept State flag on RPC answers (See: rfc1831) */
  51enum rpc_accept_stat {
  52        NFS_RPC_SUCCESS = 0,    /* RPC executed successfully */
  53        NFS_RPC_PROG_UNAVAIL = 1,       /* remote hasn't exported program */
  54        NFS_RPC_PROG_MISMATCH = 2,      /* remote can't support version # */
  55        NFS_RPC_PROC_UNAVAIL = 3,       /* program can't support procedure */
  56        NFS_RPC_GARBAGE_ARGS = 4,       /* procedure can't decode params */
  57        NFS_RPC_SYSTEM_ERR = 5  /* errors like memory allocation failure */
  58};
  59
  60struct rpc_t {
  61        union {
  62                uint8_t data[2048];
  63                struct {
  64                        uint32_t id;
  65                        uint32_t type;
  66                        uint32_t rpcvers;
  67                        uint32_t prog;
  68                        uint32_t vers;
  69                        uint32_t proc;
  70                        uint32_t data[1];
  71                } call;
  72                struct {
  73                        uint32_t id;
  74                        uint32_t type;
  75                        uint32_t rstatus;
  76                        uint32_t verifier;
  77                        uint32_t v2;
  78                        uint32_t astatus;
  79                        uint32_t data[NFS_READ_SIZE];
  80                } reply;
  81        } u;
  82};
  83void nfs_start(void);   /* Begin NFS */
  84
  85
  86/**********************************************************************/
  87
  88#endif /* __NFS_H__ */
  89