Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _NFS_FS_SB |
2 | #define _NFS_FS_SB | |
3 | ||
4 | #include <linux/list.h> | |
5 | #include <linux/backing-dev.h> | |
ef818a28 | 6 | #include <linux/wait.h> |
557134a3 AA |
7 | #include <linux/nfs_xdr.h> |
8 | #include <linux/sunrpc/xprt.h> | |
ef818a28 SD |
9 | |
10 | #include <asm/atomic.h> | |
1da177e4 | 11 | |
557134a3 | 12 | struct nfs4_session; |
d9ef5a8c | 13 | struct nfs_iostats; |
9289e7f9 | 14 | struct nlm_host; |
cccef3b9 AA |
15 | struct nfs4_sequence_args; |
16 | struct nfs4_sequence_res; | |
17 | struct nfs_server; | |
97dc1359 | 18 | struct nfs4_minor_version_ops; |
d9ef5a8c | 19 | |
24c8dbbb DH |
20 | /* |
21 | * The nfs_client identifies our client state to the server. | |
22 | */ | |
23 | struct nfs_client { | |
24 | atomic_t cl_count; | |
25 | int cl_cons_state; /* current construction state (-ve: init error) */ | |
26 | #define NFS_CS_READY 0 /* ready to be used */ | |
27 | #define NFS_CS_INITING 1 /* busy initialising */ | |
76db6d95 | 28 | #define NFS_CS_SESSION_INITING 2 /* busy initialising session */ |
24c8dbbb | 29 | unsigned long cl_res_state; /* NFS resources state */ |
24c8dbbb DH |
30 | #define NFS_CS_CALLBACK 1 /* - callback started */ |
31 | #define NFS_CS_IDMAP 2 /* - idmap started */ | |
5dd3177a | 32 | #define NFS_CS_RENEWD 3 /* - renewd started */ |
d3b4c9d7 | 33 | #define NFS_CS_STOP_RENEW 4 /* no more state to renew */ |
d6fb79d4 | 34 | #define NFS_CS_CHECK_LEASE_TIME 5 /* need to check lease time */ |
6e4cffd7 CL |
35 | struct sockaddr_storage cl_addr; /* server identifier */ |
36 | size_t cl_addrlen; | |
24c8dbbb DH |
37 | char * cl_hostname; /* hostname of server */ |
38 | struct list_head cl_share_link; /* link in global client list */ | |
39 | struct list_head cl_superblocks; /* List of nfs_server structs */ | |
40 | ||
41 | struct rpc_clnt * cl_rpcclient; | |
8fa5c000 | 42 | const struct nfs_rpc_ops *rpc_ops; /* NFS protocol vector */ |
59dca3b2 | 43 | int cl_proto; /* Network transport protocol */ |
24c8dbbb | 44 | |
94a417f3 | 45 | u32 cl_minorversion;/* NFSv4 minorversion */ |
7c67db3a TM |
46 | struct rpc_cred *cl_machine_cred; |
47 | ||
24c8dbbb DH |
48 | #ifdef CONFIG_NFS_V4 |
49 | u64 cl_clientid; /* constant */ | |
24c8dbbb DH |
50 | unsigned long cl_state; |
51 | ||
24c8dbbb DH |
52 | spinlock_t cl_lock; |
53 | ||
54 | unsigned long cl_lease_time; | |
55 | unsigned long cl_last_renewal; | |
52bad64d | 56 | struct delayed_work cl_renewd; |
24c8dbbb DH |
57 | |
58 | struct rpc_wait_queue cl_rpcwaitq; | |
59 | ||
60 | /* used for the setclientid verifier */ | |
61 | struct timespec cl_boot_time; | |
62 | ||
63 | /* idmapper */ | |
64 | struct idmap * cl_idmap; | |
65 | ||
66 | /* Our own IP address, as a null-terminated string. | |
67 | * This is used to generate the clientid, and the callback address. | |
68 | */ | |
4392f259 | 69 | char cl_ipaddr[48]; |
24c8dbbb | 70 | unsigned char cl_id_uniquifier; |
f4eecd5d | 71 | u32 cl_cb_ident; /* v4.0 callback identifier */ |
97dc1359 | 72 | const struct nfs4_minor_version_ops *cl_mvops; |
14727281 | 73 | |
99fe60d0 BH |
74 | /* The sequence id to use for the next CREATE_SESSION */ |
75 | u32 cl_seqid; | |
76 | /* The flags used for obtaining the clientid during EXCHANGE_ID */ | |
77 | u32 cl_exchange_flags; | |
557134a3 | 78 | struct nfs4_session *cl_session; /* sharred session */ |
974cec8c | 79 | struct list_head cl_layouts; |
0400a6b0 | 80 | #endif /* CONFIG_NFS_V4 */ |
557134a3 | 81 | |
14727281 DH |
82 | #ifdef CONFIG_NFS_FSCACHE |
83 | struct fscache_cookie *fscache; /* client index cache cookie */ | |
84 | #endif | |
24c8dbbb DH |
85 | }; |
86 | ||
1da177e4 LT |
87 | /* |
88 | * NFS client parameters stored in the superblock. | |
89 | */ | |
90 | struct nfs_server { | |
27951bd2 | 91 | struct nfs_client * nfs_client; /* shared client and NFS4 state */ |
54ceac45 DH |
92 | struct list_head client_link; /* List of other nfs_server structs |
93 | * that share the same client | |
94 | */ | |
95 | struct list_head master_link; /* link in master servers list */ | |
1da177e4 | 96 | struct rpc_clnt * client; /* RPC client handle */ |
b7fa0554 | 97 | struct rpc_clnt * client_acl; /* ACL RPC client handle */ |
9289e7f9 | 98 | struct nlm_host *nlm_host; /* NLM client handle */ |
003cb608 | 99 | struct nfs_iostats __percpu *io_stats; /* I/O statistics */ |
1da177e4 | 100 | struct backing_dev_info backing_dev_info; |
277866a0 | 101 | atomic_long_t writeback; /* number of writeback pages */ |
1da177e4 LT |
102 | int flags; /* various flags */ |
103 | unsigned int caps; /* server capabilities */ | |
104 | unsigned int rsize; /* read size */ | |
105 | unsigned int rpages; /* read size (in pages) */ | |
106 | unsigned int wsize; /* write size */ | |
107 | unsigned int wpages; /* write size (in pages) */ | |
108 | unsigned int wtmult; /* server disk block size */ | |
109 | unsigned int dtsize; /* readdir size */ | |
f22d6d79 | 110 | unsigned short port; /* "port=" setting */ |
1da177e4 LT |
111 | unsigned int bsize; /* server block size */ |
112 | unsigned int acregmin; /* attr cache timeouts */ | |
113 | unsigned int acregmax; | |
114 | unsigned int acdirmin; | |
115 | unsigned int acdirmax; | |
116 | unsigned int namelen; | |
c6a6f19e DH |
117 | unsigned int options; /* extra options enabled by mount */ |
118 | #define NFS_OPTION_FSCACHE 0x00000001 /* - local caching enabled */ | |
54ceac45 | 119 | |
8b4bdcf8 | 120 | struct nfs_fsid fsid; |
54ceac45 | 121 | __u64 maxfilesize; /* maximum file size */ |
6b96724e | 122 | struct timespec time_delta; /* smallest time granularity */ |
67ec9f46 | 123 | unsigned long mount_time; /* when this fs was mounted */ |
54ceac45 DH |
124 | dev_t s_dev; /* superblock dev numbers */ |
125 | ||
08734048 DH |
126 | #ifdef CONFIG_NFS_FSCACHE |
127 | struct nfs_fscache_key *fscache_key; /* unique key for superblock */ | |
128 | struct fscache_cookie *fscache; /* superblock cookie */ | |
129 | #endif | |
130 | ||
1da177e4 | 131 | #ifdef CONFIG_NFS_V4 |
1da177e4 LT |
132 | u32 attr_bitmask[2];/* V4 bitmask representing the set |
133 | of attributes supported on this | |
134 | filesystem */ | |
a65318bf TM |
135 | u32 cache_consistency_bitmask[2]; |
136 | /* V4 bitmask representing the subset | |
137 | of change attribute, size, ctime | |
138 | and mtime attributes supported by | |
139 | the server */ | |
1da177e4 LT |
140 | u32 acl_bitmask; /* V4 bitmask representing the ACEs |
141 | that are supported on this | |
142 | filesystem */ | |
85e174ba | 143 | struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */ |
f7e8917a | 144 | struct rpc_wait_queue roc_rpcwaitq; |
24d292b8 CL |
145 | |
146 | /* the following fields are protected by nfs_client->cl_lock */ | |
147 | struct rb_root state_owners; | |
148 | struct rb_root openowner_id; | |
149 | struct rb_root lockowner_id; | |
1da177e4 | 150 | #endif |
d3978bb3 | 151 | struct list_head delegations; |
54ceac45 | 152 | void (*destroy)(struct nfs_server *); |
ef818a28 SD |
153 | |
154 | atomic_t active; /* Keep trace of any activity to this server */ | |
3f8400d1 CL |
155 | |
156 | /* mountd-related mount options */ | |
157 | struct sockaddr_storage mountd_address; | |
158 | size_t mountd_addrlen; | |
159 | u32 mountd_version; | |
160 | unsigned short mountd_port; | |
161 | unsigned short mountd_protocol; | |
1da177e4 LT |
162 | }; |
163 | ||
164 | /* Server capabilities */ | |
165 | #define NFS_CAP_READDIRPLUS (1U << 0) | |
166 | #define NFS_CAP_HARDLINKS (1U << 1) | |
167 | #define NFS_CAP_SYMLINKS (1U << 2) | |
168 | #define NFS_CAP_ACLS (1U << 3) | |
169 | #define NFS_CAP_ATOMIC_OPEN (1U << 4) | |
62ab460c TM |
170 | #define NFS_CAP_CHANGE_ATTR (1U << 5) |
171 | #define NFS_CAP_FILEID (1U << 6) | |
172 | #define NFS_CAP_MODE (1U << 7) | |
173 | #define NFS_CAP_NLINK (1U << 8) | |
174 | #define NFS_CAP_OWNER (1U << 9) | |
175 | #define NFS_CAP_OWNER_GROUP (1U << 10) | |
176 | #define NFS_CAP_ATIME (1U << 11) | |
177 | #define NFS_CAP_CTIME (1U << 12) | |
178 | #define NFS_CAP_MTIME (1U << 13) | |
0df5dd4a | 179 | #define NFS_CAP_POSIX_LOCK (1U << 14) |
b064eca2 | 180 | #define NFS_CAP_UIDGID_NOMAP (1U << 15) |
1da177e4 | 181 | |
557134a3 AA |
182 | |
183 | /* maximum number of slots to use */ | |
184 | #define NFS4_MAX_SLOT_TABLE RPC_MAX_SLOT_TABLE | |
185 | ||
0400a6b0 | 186 | #if defined(CONFIG_NFS_V4) |
557134a3 AA |
187 | |
188 | /* Sessions */ | |
189 | #define SLOT_TABLE_SZ (NFS4_MAX_SLOT_TABLE/(8*sizeof(long))) | |
190 | struct nfs4_slot_table { | |
191 | struct nfs4_slot *slots; /* seqid per slot */ | |
192 | unsigned long used_slots[SLOT_TABLE_SZ]; /* used/unused bitmap */ | |
193 | spinlock_t slot_tbl_lock; | |
194 | struct rpc_wait_queue slot_tbl_waitq; /* allocators may wait here */ | |
195 | int max_slots; /* # slots in table */ | |
196 | int highest_used_slotid; /* sent to server on each SEQ. | |
197 | * op for dynamic resizing */ | |
b9efa1b2 AA |
198 | int target_max_slots; /* Set by CB_RECALL_SLOT as |
199 | * the new max_slots */ | |
42acd021 | 200 | struct completion complete; |
557134a3 AA |
201 | }; |
202 | ||
203 | static inline int slot_idx(struct nfs4_slot_table *tbl, struct nfs4_slot *sp) | |
204 | { | |
205 | return sp - tbl->slots; | |
206 | } | |
207 | ||
208 | /* | |
209 | * Session related parameters | |
210 | */ | |
211 | struct nfs4_session { | |
212 | struct nfs4_sessionid sess_id; | |
213 | u32 flags; | |
214 | unsigned long session_state; | |
215 | u32 hash_alg; | |
216 | u32 ssv_len; | |
217 | ||
218 | /* The fore and back channel */ | |
219 | struct nfs4_channel_attrs fc_attrs; | |
220 | struct nfs4_slot_table fc_slot_table; | |
221 | struct nfs4_channel_attrs bc_attrs; | |
f8625a6a | 222 | struct nfs4_slot_table bc_slot_table; |
557134a3 AA |
223 | struct nfs_client *clp; |
224 | }; | |
225 | ||
0400a6b0 | 226 | #endif /* CONFIG_NFS_V4 */ |
1da177e4 | 227 | #endif |