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https://github.com/freebsd/freebsd-src.git
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Rick Macklem
a311bd18a6
This patch adds assorted bits needed by the nfsclrdma.ko module that implements client side NFS over RDMA. It should not affect non-RDMA operation. Some additional glue is needed for the nfsclrdma.ko module within the NFS code. That will be added as a separate commit. I've specified a long MFC, since the module still requires extensive testing and, hopefully, a review. MFC after: 3 months
152 lines
3.5 KiB
C
152 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
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* Authors: Doug Rabson <[email protected]>
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* Developed with Red Inc: Alfred Perlstein <[email protected]>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "opt_inet6.h"
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <rpc/types.h>
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/*
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* For in-kernel use, we use a simple compiled-in configuration.
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*/
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static struct netconfig netconfigs[] = {
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#ifdef INET6
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{
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.nc_netid = "udp6",
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.nc_semantics = NC_TPI_CLTS,
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.nc_flag = NC_VISIBLE,
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.nc_protofmly = "inet6",
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.nc_proto = "udp",
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},
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{
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.nc_netid = "tcp6",
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.nc_semantics = NC_TPI_COTS_ORD,
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.nc_flag = NC_VISIBLE,
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.nc_protofmly = "inet6",
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.nc_proto = "tcp",
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},
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{
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.nc_netid = "rdma6",
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.nc_semantics = NC_TPI_COTS_ORD,
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.nc_flag = NC_VISIBLE,
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.nc_protofmly = "inet6",
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.nc_proto = "rdma",
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},
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#endif
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{
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.nc_netid = "udp",
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.nc_semantics = NC_TPI_CLTS,
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.nc_flag = NC_VISIBLE,
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.nc_protofmly = "inet",
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.nc_proto = "udp",
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},
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{
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.nc_netid = "tcp",
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.nc_semantics = NC_TPI_COTS_ORD,
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.nc_flag = NC_VISIBLE,
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.nc_protofmly = "inet",
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.nc_proto = "tcp",
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},
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{
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.nc_netid = "rdma",
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.nc_semantics = NC_TPI_COTS_ORD,
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.nc_flag = NC_VISIBLE,
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.nc_protofmly = "inet",
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.nc_proto = "rdma",
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},
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{
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.nc_netid = "local",
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.nc_semantics = NC_TPI_COTS_ORD,
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.nc_flag = 0,
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.nc_protofmly = "loopback",
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.nc_proto = "",
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},
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{
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.nc_netid = NULL,
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}
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};
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void *
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setnetconfig(void)
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{
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struct netconfig **nconfp;
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nconfp = malloc(sizeof(struct netconfig *), M_RPC, M_WAITOK);
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*nconfp = netconfigs;
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return ((void *) nconfp);
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}
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struct netconfig *
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getnetconfig(void *handle)
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{
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struct netconfig **nconfp = (struct netconfig **) handle;
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struct netconfig *nconf;
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nconf = *nconfp;
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if (nconf->nc_netid == NULL)
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return (NULL);
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(*nconfp)++;
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return (nconf);
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}
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struct netconfig *
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getnetconfigent(const char *netid)
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{
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struct netconfig *nconf;
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for (nconf = netconfigs; nconf->nc_netid; nconf++) {
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if (!strcmp(netid, nconf->nc_netid))
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return (nconf);
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}
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return (NULL);
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}
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void
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freenetconfigent(struct netconfig *nconf)
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{
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}
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int
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endnetconfig(void * handle)
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{
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struct netconfig **nconfp = (struct netconfig **) handle;
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free(nconfp, M_RPC);
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return (0);
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}
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