davinci: cp_intc: provide set_wake function
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / fs / nfs / callback.h
blobd4036be0b589ffd24c391b53bded40bc55a6ab5f
1 /*
2 * linux/fs/nfs/callback.h
4 * Copyright (C) 2004 Trond Myklebust
6 * NFSv4 callback definitions
7 */
8 #ifndef __LINUX_FS_NFS_CALLBACK_H
9 #define __LINUX_FS_NFS_CALLBACK_H
11 #define NFS4_CALLBACK 0x40000000
12 #define NFS4_CALLBACK_XDRSIZE 2048
13 #define NFS4_CALLBACK_BUFSIZE (1024 + NFS4_CALLBACK_XDRSIZE)
15 enum nfs4_callback_procnum {
16 CB_NULL = 0,
17 CB_COMPOUND = 1,
20 enum nfs4_callback_opnum {
21 OP_CB_GETATTR = 3,
22 OP_CB_RECALL = 4,
23 /* Callback operations new to NFSv4.1 */
24 OP_CB_LAYOUTRECALL = 5,
25 OP_CB_NOTIFY = 6,
26 OP_CB_PUSH_DELEG = 7,
27 OP_CB_RECALL_ANY = 8,
28 OP_CB_RECALLABLE_OBJ_AVAIL = 9,
29 OP_CB_RECALL_SLOT = 10,
30 OP_CB_SEQUENCE = 11,
31 OP_CB_WANTS_CANCELLED = 12,
32 OP_CB_NOTIFY_LOCK = 13,
33 OP_CB_NOTIFY_DEVICEID = 14,
34 OP_CB_ILLEGAL = 10044,
37 struct cb_compound_hdr_arg {
38 unsigned int taglen;
39 const char *tag;
40 unsigned int minorversion;
41 unsigned nops;
44 struct cb_compound_hdr_res {
45 __be32 *status;
46 unsigned int taglen;
47 const char *tag;
48 __be32 *nops;
51 struct cb_getattrargs {
52 struct sockaddr *addr;
53 struct nfs_fh fh;
54 uint32_t bitmap[2];
57 struct cb_getattrres {
58 __be32 status;
59 uint32_t bitmap[2];
60 uint64_t size;
61 uint64_t change_attr;
62 struct timespec ctime;
63 struct timespec mtime;
66 struct cb_recallargs {
67 struct sockaddr *addr;
68 struct nfs_fh fh;
69 nfs4_stateid stateid;
70 uint32_t truncate;
73 #if defined(CONFIG_NFS_V4_1)
75 struct referring_call {
76 uint32_t rc_sequenceid;
77 uint32_t rc_slotid;
80 struct referring_call_list {
81 struct nfs4_sessionid rcl_sessionid;
82 uint32_t rcl_nrefcalls;
83 struct referring_call *rcl_refcalls;
86 struct cb_sequenceargs {
87 struct sockaddr *csa_addr;
88 struct nfs4_sessionid csa_sessionid;
89 uint32_t csa_sequenceid;
90 uint32_t csa_slotid;
91 uint32_t csa_highestslotid;
92 uint32_t csa_cachethis;
93 uint32_t csa_nrclists;
94 struct referring_call_list *csa_rclists;
97 struct cb_sequenceres {
98 __be32 csr_status;
99 struct nfs4_sessionid csr_sessionid;
100 uint32_t csr_sequenceid;
101 uint32_t csr_slotid;
102 uint32_t csr_highestslotid;
103 uint32_t csr_target_highestslotid;
106 extern unsigned nfs4_callback_sequence(struct cb_sequenceargs *args,
107 struct cb_sequenceres *res);
109 extern int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation,
110 const nfs4_stateid *stateid);
112 #define RCA4_TYPE_MASK_RDATA_DLG 0
113 #define RCA4_TYPE_MASK_WDATA_DLG 1
115 struct cb_recallanyargs {
116 struct sockaddr *craa_addr;
117 uint32_t craa_objs_to_keep;
118 uint32_t craa_type_mask;
121 extern unsigned nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy);
122 #endif /* CONFIG_NFS_V4_1 */
124 extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
125 extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy);
127 #ifdef CONFIG_NFS_V4
128 extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
129 extern void nfs_callback_down(int minorversion);
130 extern int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation,
131 const nfs4_stateid *stateid);
132 #endif /* CONFIG_NFS_V4 */
134 * nfs41: Callbacks are expected to not cause substantial latency,
135 * so we limit their concurrency to 1 by setting up the maximum number
136 * of slots for the backchannel.
138 #define NFS41_BC_MIN_CALLBACKS 1
139 #define NFS41_BC_MAX_CALLBACKS 1
141 extern unsigned int nfs_callback_set_tcpport;
142 extern unsigned short nfs_callback_tcpport;
143 extern unsigned short nfs_callback_tcpport6;
145 #endif /* __LINUX_FS_NFS_CALLBACK_H */