1 /*
2 * GPL HEADER START
3 *
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
19 *
20 * GPL HEADER END
21 */
22 /*
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
25 *
26 * Copyright (c) 2012, Intel Corporation.
27 */
28 /*
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
31 */
32
33 #define DEBUG_SUBSYSTEM S_LNET
34
35 #include "selftest.h"
36 #include "console.h"
37
38 enum {
39 LST_INIT_NONE = 0,
40 LST_INIT_WI_SERIAL,
41 LST_INIT_WI_TEST,
42 LST_INIT_RPC,
43 LST_INIT_FW,
44 LST_INIT_CONSOLE
45 };
46
47 static int lst_init_step = LST_INIT_NONE;
48
49 struct cfs_wi_sched *lst_sched_serial;
50 struct cfs_wi_sched **lst_sched_test;
51
52 static void
lnet_selftest_exit(void)53 lnet_selftest_exit(void)
54 {
55 int i;
56
57 switch (lst_init_step) {
58 case LST_INIT_CONSOLE:
59 lstcon_console_fini();
60 case LST_INIT_FW:
61 sfw_shutdown();
62 case LST_INIT_RPC:
63 srpc_shutdown();
64 case LST_INIT_WI_TEST:
65 for (i = 0;
66 i < cfs_cpt_number(lnet_cpt_table()); i++) {
67 if (!lst_sched_test[i])
68 continue;
69 cfs_wi_sched_destroy(lst_sched_test[i]);
70 }
71 LIBCFS_FREE(lst_sched_test,
72 sizeof(lst_sched_test[0]) *
73 cfs_cpt_number(lnet_cpt_table()));
74 lst_sched_test = NULL;
75
76 case LST_INIT_WI_SERIAL:
77 cfs_wi_sched_destroy(lst_sched_serial);
78 lst_sched_serial = NULL;
79 case LST_INIT_NONE:
80 break;
81 default:
82 LBUG();
83 }
84 }
85
86 static int
lnet_selftest_init(void)87 lnet_selftest_init(void)
88 {
89 int nscheds;
90 int rc;
91 int i;
92
93 rc = cfs_wi_sched_create("lst_s", lnet_cpt_table(), CFS_CPT_ANY,
94 1, &lst_sched_serial);
95 if (rc) {
96 CERROR("Failed to create serial WI scheduler for LST\n");
97 return rc;
98 }
99 lst_init_step = LST_INIT_WI_SERIAL;
100
101 nscheds = cfs_cpt_number(lnet_cpt_table());
102 LIBCFS_ALLOC(lst_sched_test, sizeof(lst_sched_test[0]) * nscheds);
103 if (!lst_sched_test)
104 goto error;
105
106 lst_init_step = LST_INIT_WI_TEST;
107 for (i = 0; i < nscheds; i++) {
108 int nthrs = cfs_cpt_weight(lnet_cpt_table(), i);
109
110 /* reserve at least one CPU for LND */
111 nthrs = max(nthrs - 1, 1);
112 rc = cfs_wi_sched_create("lst_t", lnet_cpt_table(), i,
113 nthrs, &lst_sched_test[i]);
114 if (rc) {
115 CERROR("Failed to create CPT affinity WI scheduler %d for LST\n", i);
116 goto error;
117 }
118 }
119
120 rc = srpc_startup();
121 if (rc) {
122 CERROR("LST can't startup rpc\n");
123 goto error;
124 }
125 lst_init_step = LST_INIT_RPC;
126
127 rc = sfw_startup();
128 if (rc) {
129 CERROR("LST can't startup framework\n");
130 goto error;
131 }
132 lst_init_step = LST_INIT_FW;
133
134 rc = lstcon_console_init();
135 if (rc) {
136 CERROR("LST can't startup console\n");
137 goto error;
138 }
139 lst_init_step = LST_INIT_CONSOLE;
140 return 0;
141 error:
142 lnet_selftest_exit();
143 return rc;
144 }
145
146 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
147 MODULE_DESCRIPTION("LNet Selftest");
148 MODULE_VERSION("2.7.0");
149 MODULE_LICENSE("GPL");
150
151 module_init(lnet_selftest_init);
152 module_exit(lnet_selftest_exit);
153