2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5 * Copyright (c) 2013 Spectra Logic Corporation
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <fs/nfs/nfsport.h>
35 #include <nfs/nfs_fha.h>
36 #include <fs/nfs/xdr_subs.h>
37 #include <fs/nfs/nfs.h>
38 #include <fs/nfs/nfsproto.h>
39 #include <fs/nfs/nfsm_subs.h>
40 #include <fs/nfsserver/nfs_fha_new.h>
42 static void fhanew_init(void *foo);
43 static void fhanew_uninit(void *foo);
44 rpcproc_t fhanew_get_procnum(rpcproc_t procnum);
45 int fhanew_realign(struct mbuf **mb, int malloc_flags);
46 int fhanew_get_fh(uint64_t *fh, int v3, struct mbuf **md, caddr_t *dpos);
47 int fhanew_is_read(rpcproc_t procnum);
48 int fhanew_is_write(rpcproc_t procnum);
49 int fhanew_get_offset(struct mbuf **md, caddr_t *dpos, int v3,
50 struct fha_info *info);
51 int fhanew_no_offset(rpcproc_t procnum);
52 void fhanew_set_locktype(rpcproc_t procnum, struct fha_info *info);
53 static int fhenew_stats_sysctl(SYSCTL_HANDLER_ARGS);
55 static struct fha_params fhanew_softc;
57 SYSCTL_DECL(_vfs_nfsd);
59 extern int newnfs_nfsv3_procid[];
60 extern SVCPOOL *nfsrvd_pool;
62 SYSINIT(nfs_fhanew, SI_SUB_ROOT_CONF, SI_ORDER_ANY, fhanew_init, NULL);
63 SYSUNINIT(nfs_fhanew, SI_SUB_ROOT_CONF, SI_ORDER_ANY, fhanew_uninit, NULL);
66 fhanew_init(void *foo)
68 struct fha_params *softc;
70 softc = &fhanew_softc;
72 bzero(softc, sizeof(*softc));
75 * Setup the callbacks for this FHA personality.
77 softc->callbacks.get_procnum = fhanew_get_procnum;
78 softc->callbacks.realign = fhanew_realign;
79 softc->callbacks.get_fh = fhanew_get_fh;
80 softc->callbacks.is_read = fhanew_is_read;
81 softc->callbacks.is_write = fhanew_is_write;
82 softc->callbacks.get_offset = fhanew_get_offset;
83 softc->callbacks.no_offset = fhanew_no_offset;
84 softc->callbacks.set_locktype = fhanew_set_locktype;
85 softc->callbacks.fhe_stats_sysctl = fhenew_stats_sysctl;
87 snprintf(softc->server_name, sizeof(softc->server_name),
90 softc->pool = &nfsrvd_pool;
93 * Initialize the sysctl context list for the fha module.
95 sysctl_ctx_init(&softc->sysctl_ctx);
96 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
97 SYSCTL_STATIC_CHILDREN(_vfs_nfsd), OID_AUTO, "fha", CTLFLAG_RD,
98 0, "NFS File Handle Affinity (FHA)");
99 if (softc->sysctl_tree == NULL) {
100 printf("%s: unable to allocate sysctl tree\n", __func__);
108 fhanew_uninit(void *foo)
110 struct fha_params *softc;
112 softc = &fhanew_softc;
118 fhanew_get_procnum(rpcproc_t procnum)
120 if (procnum > NFSV2PROC_STATFS)
123 return (newnfs_nfsv3_procid[procnum]);
127 fhanew_realign(struct mbuf **mb, int malloc_flags)
129 return (newnfs_realign(mb, malloc_flags));
133 fhanew_get_fh(uint64_t *fh, int v3, struct mbuf **md, caddr_t *dpos)
135 struct nfsrv_descript lnd, *nd;
149 NFSM_DISSECT_NONBLOCK(tl, uint32_t *, NFSX_UNSIGNED);
150 if ((len = fxdr_unsigned(int, *tl)) <= 0 || len > NFSX_FHMAX) {
160 NFSM_DISSECT_NONBLOCK(buf, uint8_t *, len);
161 for (i = 0; i < len; i++)
162 t ^= ((uint64_t)buf[i] << (i & 7) * 8);
174 fhanew_is_read(rpcproc_t procnum)
176 if (procnum == NFSPROC_READ)
183 fhanew_is_write(rpcproc_t procnum)
185 if (procnum == NFSPROC_WRITE)
192 fhanew_get_offset(struct mbuf **md, caddr_t *dpos, int v3,
193 struct fha_info *info)
195 struct nfsrv_descript lnd, *nd;
206 NFSM_DISSECT_NONBLOCK(tl, uint32_t *, 2 * NFSX_UNSIGNED);
207 info->offset = fxdr_hyper(tl);
209 NFSM_DISSECT_NONBLOCK(tl, uint32_t *, NFSX_UNSIGNED);
210 info->offset = fxdr_unsigned(uint32_t, *tl);
221 fhanew_no_offset(rpcproc_t procnum)
223 if (procnum == NFSPROC_FSSTAT ||
224 procnum == NFSPROC_FSINFO ||
225 procnum == NFSPROC_PATHCONF ||
226 procnum == NFSPROC_NOOP ||
227 procnum == NFSPROC_NULL)
234 fhanew_set_locktype(rpcproc_t procnum, struct fha_info *info)
238 case NFSPROC_GETATTR:
241 case NFSPROC_READLINK:
243 case NFSPROC_READDIR:
244 case NFSPROC_READDIRPLUS:
246 info->locktype = LK_SHARED;
248 case NFSPROC_SETATTR:
251 case NFSPROC_SYMLINK:
259 case NFSPROC_PATHCONF:
262 info->locktype = LK_EXCLUSIVE;
268 fhenew_stats_sysctl(SYSCTL_HANDLER_ARGS)
270 return (fhe_stats_sysctl(oidp, arg1, arg2, req, &fhanew_softc));
275 fhanew_assign(SVCTHREAD *this_thread, struct svc_req *req)
277 return (fha_assign(this_thread, req, &fhanew_softc));