4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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14 * in the LICENSE file that accompanied this code).
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
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32 * Lustre is a trademark of Sun Microsystems, Inc.
36 # define EXPORT_SYMTAB
38 #define DEBUG_SUBSYSTEM S_LNET
39 #include <lnet/lib-lnet.h>
41 static int config_on_load = 0;
42 CFS_MODULE_PARM(config_on_load, "i", int, 0444,
43 "configure network at module load");
45 static cfs_mutex_t lnet_config_mutex;
48 lnet_configure (void *arg)
50 /* 'arg' only there so I can be passed to cfs_create_thread() */
53 LNET_MUTEX_LOCK(&lnet_config_mutex);
55 if (!the_lnet.ln_niinit_self) {
56 rc = LNetNIInit(LUSTRE_SRV_LNET_PID);
58 the_lnet.ln_niinit_self = 1;
63 LNET_MUTEX_UNLOCK(&lnet_config_mutex);
68 lnet_unconfigure (void)
72 LNET_MUTEX_LOCK(&lnet_config_mutex);
74 if (the_lnet.ln_niinit_self) {
75 the_lnet.ln_niinit_self = 0;
79 LNET_MUTEX_LOCK(&the_lnet.ln_api_mutex);
80 refcount = the_lnet.ln_refcount;
81 LNET_MUTEX_UNLOCK(&the_lnet.ln_api_mutex);
83 LNET_MUTEX_UNLOCK(&lnet_config_mutex);
84 return (refcount == 0) ? 0 : -EBUSY;
88 lnet_ioctl(unsigned int cmd, struct libcfs_ioctl_data *data)
93 case IOC_LIBCFS_CONFIGURE:
94 return lnet_configure(NULL);
96 case IOC_LIBCFS_UNCONFIGURE:
97 return lnet_unconfigure();
100 /* Passing LNET_PID_ANY only gives me a ref if the net is up
101 * already; I'll need it to ensure the net can't go down while
102 * I'm called into it */
103 rc = LNetNIInit(LNET_PID_ANY);
105 rc = LNetCtl(cmd, data);
112 DECLARE_IOCTL_HANDLER(lnet_ioctl_handler, lnet_ioctl);
120 cfs_mutex_init(&lnet_config_mutex);
124 CERROR("LNetInit: error %d\n", rc);
128 rc = libcfs_register_ioctl(&lnet_ioctl_handler);
131 if (config_on_load) {
132 /* Have to schedule a separate thread to avoid deadlocking
134 (void) cfs_create_thread(lnet_configure, NULL, 0);
145 rc = libcfs_deregister_ioctl(&lnet_ioctl_handler);
151 EXPORT_SYMBOL(lnet_register_lnd);
152 EXPORT_SYMBOL(lnet_unregister_lnd);
154 EXPORT_SYMBOL(LNetMEAttach);
155 EXPORT_SYMBOL(LNetMEInsert);
156 EXPORT_SYMBOL(LNetMEUnlink);
157 EXPORT_SYMBOL(LNetEQAlloc);
158 EXPORT_SYMBOL(LNetMDAttach);
159 EXPORT_SYMBOL(LNetMDUnlink);
160 EXPORT_SYMBOL(LNetNIInit);
161 EXPORT_SYMBOL(LNetNIFini);
162 EXPORT_SYMBOL(LNetInit);
163 EXPORT_SYMBOL(LNetFini);
164 EXPORT_SYMBOL(LNetSnprintHandle);
165 EXPORT_SYMBOL(LNetPut);
166 EXPORT_SYMBOL(LNetGet);
167 EXPORT_SYMBOL(LNetEQWait);
168 EXPORT_SYMBOL(LNetEQFree);
169 EXPORT_SYMBOL(LNetEQGet);
170 EXPORT_SYMBOL(LNetGetId);
171 EXPORT_SYMBOL(LNetMDBind);
172 EXPORT_SYMBOL(LNetDist);
173 EXPORT_SYMBOL(LNetSetAsync);
174 EXPORT_SYMBOL(LNetCtl);
175 EXPORT_SYMBOL(LNetSetLazyPortal);
176 EXPORT_SYMBOL(LNetClearLazyPortal);
177 EXPORT_SYMBOL(the_lnet);
178 EXPORT_SYMBOL(lnet_iov_nob);
179 EXPORT_SYMBOL(lnet_extract_iov);
180 EXPORT_SYMBOL(lnet_kiov_nob);
181 EXPORT_SYMBOL(lnet_extract_kiov);
182 EXPORT_SYMBOL(lnet_copy_iov2iov);
183 EXPORT_SYMBOL(lnet_copy_iov2kiov);
184 EXPORT_SYMBOL(lnet_copy_kiov2iov);
185 EXPORT_SYMBOL(lnet_copy_kiov2kiov);
186 EXPORT_SYMBOL(lnet_finalize);
187 EXPORT_SYMBOL(lnet_parse);
188 EXPORT_SYMBOL(lnet_create_reply_msg);
189 EXPORT_SYMBOL(lnet_set_reply_msg_len);
190 EXPORT_SYMBOL(lnet_msgtyp2str);
191 EXPORT_SYMBOL(lnet_net2ni_locked);
193 MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
194 MODULE_DESCRIPTION("Portals v3.1");
195 MODULE_LICENSE("GPL");
197 cfs_module(lnet, "1.0.0", init_lnet, fini_lnet);