nfsrvcache.h revision 1.1.1.1.10.3
1 1.1.1.1.10.2 tls /* $NetBSD: nfsrvcache.h,v 1.1.1.1.10.3 2017/12/03 11:38:42 jdolecek Exp $ */ 2 1.1.1.1.10.2 tls /*- 3 1.1.1.1.10.2 tls * Copyright (c) 1989, 1993 4 1.1.1.1.10.2 tls * The Regents of the University of California. All rights reserved. 5 1.1.1.1.10.2 tls * 6 1.1.1.1.10.2 tls * This code is derived from software contributed to Berkeley by 7 1.1.1.1.10.2 tls * Rick Macklem at The University of Guelph. 8 1.1.1.1.10.2 tls * 9 1.1.1.1.10.2 tls * Redistribution and use in source and binary forms, with or without 10 1.1.1.1.10.2 tls * modification, are permitted provided that the following conditions 11 1.1.1.1.10.2 tls * are met: 12 1.1.1.1.10.2 tls * 1. Redistributions of source code must retain the above copyright 13 1.1.1.1.10.2 tls * notice, this list of conditions and the following disclaimer. 14 1.1.1.1.10.2 tls * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.1.1.10.2 tls * notice, this list of conditions and the following disclaimer in the 16 1.1.1.1.10.2 tls * documentation and/or other materials provided with the distribution. 17 1.1.1.1.10.2 tls * 4. Neither the name of the University nor the names of its contributors 18 1.1.1.1.10.2 tls * may be used to endorse or promote products derived from this software 19 1.1.1.1.10.2 tls * without specific prior written permission. 20 1.1.1.1.10.2 tls * 21 1.1.1.1.10.2 tls * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 1.1.1.1.10.2 tls * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 1.1.1.1.10.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 1.1.1.1.10.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 1.1.1.1.10.2 tls * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 1.1.1.1.10.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 1.1.1.1.10.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 1.1.1.1.10.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 1.1.1.1.10.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 1.1.1.1.10.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 1.1.1.1.10.2 tls * SUCH DAMAGE. 32 1.1.1.1.10.2 tls * 33 1.1.1.1.10.3 jdolecek * FreeBSD: head/sys/fs/nfs/nfsrvcache.h 269347 2014-07-31 19:24:44Z kib 34 1.1.1.1.10.2 tls * $NetBSD: nfsrvcache.h,v 1.1.1.1.10.3 2017/12/03 11:38:42 jdolecek Exp $ 35 1.1.1.1.10.2 tls */ 36 1.1.1.1.10.2 tls 37 1.1.1.1.10.2 tls #ifndef _NFS_NFSRVCACHE_H_ 38 1.1.1.1.10.2 tls #define _NFS_NFSRVCACHE_H_ 39 1.1.1.1.10.2 tls 40 1.1.1.1.10.2 tls /* 41 1.1.1.1.10.2 tls * Definitions for the server recent request cache 42 1.1.1.1.10.2 tls */ 43 1.1.1.1.10.2 tls #define NFSRVCACHE_MAX_SIZE 2048 44 1.1.1.1.10.2 tls #define NFSRVCACHE_MIN_SIZE 64 45 1.1.1.1.10.2 tls 46 1.1.1.1.10.2 tls #define NFSRVCACHE_HASHSIZE 500 47 1.1.1.1.10.2 tls 48 1.1.1.1.10.2 tls /* Cache table entry. */ 49 1.1.1.1.10.2 tls struct nfsrvcache { 50 1.1.1.1.10.2 tls LIST_ENTRY(nfsrvcache) rc_hash; /* Hash chain */ 51 1.1.1.1.10.3 jdolecek LIST_ENTRY(nfsrvcache) rc_ahash; /* ACK hash chain */ 52 1.1.1.1.10.2 tls TAILQ_ENTRY(nfsrvcache) rc_lru; /* UDP lru chain */ 53 1.1.1.1.10.2 tls u_int32_t rc_xid; /* rpc id number */ 54 1.1.1.1.10.2 tls time_t rc_timestamp; /* Time done */ 55 1.1.1.1.10.2 tls union { 56 1.1.1.1.10.2 tls mbuf_t repmb; /* Reply mbuf list OR */ 57 1.1.1.1.10.2 tls int repstat; /* Reply status */ 58 1.1.1.1.10.2 tls } rc_un; 59 1.1.1.1.10.2 tls union { 60 1.1.1.1.10.2 tls struct { 61 1.1.1.1.10.2 tls union nethostaddr haddr; /* Host address */ 62 1.1.1.1.10.2 tls } udp; 63 1.1.1.1.10.2 tls struct { 64 1.1.1.1.10.2 tls u_int64_t sockref; 65 1.1.1.1.10.2 tls u_int32_t len; 66 1.1.1.1.10.2 tls u_int32_t tcpseq; 67 1.1.1.1.10.2 tls int16_t refcnt; 68 1.1.1.1.10.2 tls u_int16_t cksum; 69 1.1.1.1.10.2 tls time_t cachetime; 70 1.1.1.1.10.3 jdolecek int acked; 71 1.1.1.1.10.2 tls } ot; 72 1.1.1.1.10.2 tls } rc_un2; 73 1.1.1.1.10.2 tls u_int16_t rc_proc; /* rpc proc number */ 74 1.1.1.1.10.2 tls u_int16_t rc_flag; /* Flag bits */ 75 1.1.1.1.10.2 tls }; 76 1.1.1.1.10.2 tls 77 1.1.1.1.10.2 tls #define rc_reply rc_un.repmb 78 1.1.1.1.10.2 tls #define rc_status rc_un.repstat 79 1.1.1.1.10.2 tls #define rc_inet rc_un2.udp.haddr.had_inet.s_addr 80 1.1.1.1.10.2 tls #define rc_inet6 rc_un2.udp.haddr.had_inet6 81 1.1.1.1.10.2 tls #define rc_haddr rc_un2.udp.haddr 82 1.1.1.1.10.2 tls #define rc_sockref rc_un2.ot.sockref 83 1.1.1.1.10.2 tls #define rc_tcpseq rc_un2.ot.tcpseq 84 1.1.1.1.10.2 tls #define rc_refcnt rc_un2.ot.refcnt 85 1.1.1.1.10.2 tls #define rc_reqlen rc_un2.ot.len 86 1.1.1.1.10.2 tls #define rc_cksum rc_un2.ot.cksum 87 1.1.1.1.10.2 tls #define rc_cachetime rc_un2.ot.cachetime 88 1.1.1.1.10.3 jdolecek #define rc_acked rc_un2.ot.acked 89 1.1.1.1.10.3 jdolecek 90 1.1.1.1.10.3 jdolecek /* TCP ACK values */ 91 1.1.1.1.10.3 jdolecek #define RC_NO_SEQ 0 92 1.1.1.1.10.3 jdolecek #define RC_NO_ACK 1 93 1.1.1.1.10.3 jdolecek #define RC_ACK 2 94 1.1.1.1.10.3 jdolecek #define RC_NACK 3 95 1.1.1.1.10.2 tls 96 1.1.1.1.10.2 tls /* Return values */ 97 1.1.1.1.10.2 tls #define RC_DROPIT 0 98 1.1.1.1.10.2 tls #define RC_REPLY 1 99 1.1.1.1.10.2 tls #define RC_DOIT 2 100 1.1.1.1.10.2 tls 101 1.1.1.1.10.2 tls /* Flag bits */ 102 1.1.1.1.10.2 tls #define RC_LOCKED 0x0001 103 1.1.1.1.10.2 tls #define RC_WANTED 0x0002 104 1.1.1.1.10.2 tls #define RC_REPSTATUS 0x0004 105 1.1.1.1.10.2 tls #define RC_REPMBUF 0x0008 106 1.1.1.1.10.2 tls #define RC_UDP 0x0010 107 1.1.1.1.10.2 tls #define RC_INETIPV6 0x0020 108 1.1.1.1.10.2 tls #define RC_INPROG 0x0040 109 1.1.1.1.10.2 tls #define RC_NFSV2 0x0100 110 1.1.1.1.10.2 tls #define RC_NFSV3 0x0200 111 1.1.1.1.10.2 tls #define RC_NFSV4 0x0400 112 1.1.1.1.10.2 tls #define RC_NFSVERS (RC_NFSV2 | RC_NFSV3 | RC_NFSV4) 113 1.1.1.1.10.2 tls #define RC_REFCNT 0x0800 114 1.1.1.1.10.2 tls #define RC_SAMETCPCONN 0x1000 115 1.1.1.1.10.2 tls 116 1.1.1.1.10.2 tls LIST_HEAD(nfsrvhashhead, nfsrvcache); 117 1.1.1.1.10.2 tls 118 1.1.1.1.10.2 tls /* The fine-grained locked cache hash table for TCP. */ 119 1.1.1.1.10.2 tls struct nfsrchash_bucket { 120 1.1.1.1.10.3 jdolecek struct kmutex mtx; 121 1.1.1.1.10.2 tls struct nfsrvhashhead tbl; 122 1.1.1.1.10.2 tls }; 123 1.1.1.1.10.2 tls 124 1.1.1.1.10.2 tls #endif /* _NFS_NFSRVCACHE_H_ */ 125
Indexes created Tue Oct 14 01:09:49 GMT 2025