![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to nfs.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Net/2] / Net2 / nfs|
Return to nfs.h CVS log | Up to [Net/2] / Net2 / nfs |
1.1 root 1: /*
2: * Copyright (c) 1989 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * Rick Macklem at The University of Guelph.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * @(#)nfs.h 7.11 (Berkeley) 4/19/91
37: */
38:
1.1.1.2 ! root 39: #ifndef _NFS_NFS_H_
! 40: #define _NFS_NFS_H_
! 41:
1.1 root 42: /*
43: * Tunable constants for nfs
44: */
45:
46: #define NFS_MAXIOVEC 34
47: #define NFS_HZ 10 /* Ticks per second for NFS timeouts */
48: #define NFS_TIMEO (1*NFS_HZ) /* Default timeout = 1 second */
49: #define NFS_MINTIMEO (NFS_HZ) /* Min timeout to use */
50: #define NFS_MAXTIMEO (60*NFS_HZ) /* Max timeout to backoff to */
51: #define NFS_MINIDEMTIMEO (2*NFS_HZ) /* Min timeout for non-idempotent ops*/
52: #define NFS_RELIABLETIMEO (5*NFS_HZ) /* Min timeout on reliable sockets */
53: #define NFS_MAXREXMIT 100 /* Stop counting after this many */
54: #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
55: #define NFS_RETRANS 10 /* Num of retrans for soft mounts */
56: #define NFS_FISHY 8 /* Host not responding at this count */
57: #define NFS_ATTRTIMEO 5 /* Attribute cache timeout in sec */
58: #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
59: #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
60: #define NFS_MAXREADDIR NFS_MAXDATA /* Max. size of directory read */
61: #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runable */
62: #define NFS_DIRBLKSIZ 1024 /* Size of an NFS directory block */
63: #define NMOD(a) ((a) % nfs_asyncdaemons)
64:
65: /*
66: * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
67: * What should be in this set is open to debate, but I believe that since
68: * I/O system calls on ufs are never interrupted by signals the set should
69: * be minimal. My reasoning is that many current programs that use signals
70: * such as SIGALRM will not expect file I/O system calls to be interrupted
71: * by them and break.
72: */
73: #define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
74: sigmask(SIGHUP)|sigmask(SIGQUIT))
75:
76: /*
77: * Socket errors ignored for connectionless sockets??
78: * For now, ignore them all
79: */
80: #define NFSIGNORE_SOERROR(s, e) \
81: ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
82: ((s) & PR_CONNREQUIRED) == 0)
83:
84: /*
85: * Nfs outstanding request list element
86: */
87: struct nfsreq {
88: struct nfsreq *r_next;
89: struct nfsreq *r_prev;
90: struct mbuf *r_mreq;
91: struct mbuf *r_mrep;
92: struct nfsmount *r_nmp;
93: struct vnode *r_vp;
94: u_long r_xid;
95: short r_flags; /* flags on request, see below */
96: short r_retry; /* max retransmission count */
97: short r_rexmit; /* current retrans count */
98: short r_timer; /* tick counter on reply */
99: short r_timerinit; /* reinit tick counter on reply */
100: struct proc *r_procp; /* Proc that did I/O system call */
101: };
102:
103: /* Flag values for r_flags */
104: #define R_TIMING 0x01 /* timing request (in mntp) */
105: #define R_SENT 0x02 /* request has been sent */
106: #define R_SOFTTERM 0x04 /* soft mnt, too many retries */
107: #define R_INTR 0x08 /* intr mnt, signal pending */
108: #define R_SOCKERR 0x10 /* Fatal error on socket */
109: #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
110: #define R_MUSTRESEND 0x40 /* Must resend request */
111:
112: #ifdef KERNEL
113: /*
114: * Silly rename structure that hangs off the nfsnode until the name
115: * can be removed by nfs_inactive()
116: */
117: struct sillyrename {
118: nfsv2fh_t s_fh;
119: struct ucred *s_cred;
120: struct vnode *s_dvp;
121: u_short s_namlen;
122: char s_name[20];
123: };
124:
125: /* And its flag values */
126: #define REMOVE 0
127: #define RMDIR 1
128: #endif /* KERNEL */
129:
130: /*
131: * Stats structure
132: */
133: struct nfsstats {
134: int attrcache_hits;
135: int attrcache_misses;
136: int lookupcache_hits;
137: int lookupcache_misses;
138: int direofcache_hits;
139: int direofcache_misses;
140: int biocache_reads;
141: int read_bios;
142: int read_physios;
143: int biocache_writes;
144: int write_bios;
145: int write_physios;
146: int biocache_readlinks;
147: int readlink_bios;
148: int biocache_readdirs;
149: int readdir_bios;
150: int rpccnt[NFS_NPROCS];
151: int rpcretries;
152: int srvrpccnt[NFS_NPROCS];
153: int srvrpc_errs;
154: int srv_errs;
155: int rpcrequests;
156: int rpctimeouts;
157: int rpcunexpected;
158: int rpcinvalid;
159: int srvcache_inproghits;
160: int srvcache_idemdonehits;
161: int srvcache_nonidemdonehits;
162: int srvcache_misses;
163: };
164:
165: #ifdef KERNEL
166: struct nfsstats nfsstats;
167: #endif /* KERNEL */
1.1.1.2 ! root 168:
! 169: #endif /* !_NFS_NFS_H_ */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.