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.sun.com/software/products/lustre/docs/GPLv2.pdf
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 *
24 * GPL HEADER END
25 */
26 /*
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
29 *
30 * Copyright (c) 2012, Intel Corporation.
31 */
32 /*
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
35 *
36 * lnet/selftest/conctl.c
37 *
38 * Test client & Server
39 *
40 * Author: Liang Zhen <liangzhen@clusterfs.com>
41 */
42
43 #include "selftest.h"
44
45 #define LST_PING_TEST_MAGIC 0xbabeface
46
47 int ping_srv_workitems = SFW_TEST_WI_MAX;
48 module_param(ping_srv_workitems, int, 0644);
49 MODULE_PARM_DESC(ping_srv_workitems, "# PING server workitems");
50
51 typedef struct {
52 spinlock_t pnd_lock; /* serialize */
53 int pnd_counter; /* sequence counter */
54 } lst_ping_data_t;
55
56 static lst_ping_data_t lst_ping_data;
57
58 static int
ping_client_init(sfw_test_instance_t * tsi)59 ping_client_init(sfw_test_instance_t *tsi)
60 {
61 sfw_session_t *sn = tsi->tsi_batch->bat_session;
62
63 LASSERT(tsi->tsi_is_client);
64 LASSERT(sn != NULL && (sn->sn_features & ~LST_FEATS_MASK) == 0);
65
66 spin_lock_init(&lst_ping_data.pnd_lock);
67 lst_ping_data.pnd_counter = 0;
68
69 return 0;
70 }
71
72 static void
ping_client_fini(sfw_test_instance_t * tsi)73 ping_client_fini (sfw_test_instance_t *tsi)
74 {
75 sfw_session_t *sn = tsi->tsi_batch->bat_session;
76 int errors;
77
78 LASSERT (sn != NULL);
79 LASSERT (tsi->tsi_is_client);
80
81 errors = atomic_read(&sn->sn_ping_errors);
82 if (errors)
83 CWARN ("%d pings have failed.\n", errors);
84 else
85 CDEBUG (D_NET, "Ping test finished OK.\n");
86 }
87
88 static int
ping_client_prep_rpc(sfw_test_unit_t * tsu,lnet_process_id_t dest,srpc_client_rpc_t ** rpc)89 ping_client_prep_rpc(sfw_test_unit_t *tsu,
90 lnet_process_id_t dest, srpc_client_rpc_t **rpc)
91 {
92 srpc_ping_reqst_t *req;
93 sfw_test_instance_t *tsi = tsu->tsu_instance;
94 sfw_session_t *sn = tsi->tsi_batch->bat_session;
95 struct timeval tv;
96 int rc;
97
98 LASSERT(sn != NULL);
99 LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
100
101 rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, 0, 0, rpc);
102 if (rc != 0)
103 return rc;
104
105 req = &(*rpc)->crpc_reqstmsg.msg_body.ping_reqst;
106
107 req->pnr_magic = LST_PING_TEST_MAGIC;
108
109 spin_lock(&lst_ping_data.pnd_lock);
110 req->pnr_seq = lst_ping_data.pnd_counter++;
111 spin_unlock(&lst_ping_data.pnd_lock);
112
113 cfs_fs_timeval(&tv);
114 req->pnr_time_sec = tv.tv_sec;
115 req->pnr_time_usec = tv.tv_usec;
116
117 return rc;
118 }
119
120 static void
ping_client_done_rpc(sfw_test_unit_t * tsu,srpc_client_rpc_t * rpc)121 ping_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
122 {
123 sfw_test_instance_t *tsi = tsu->tsu_instance;
124 sfw_session_t *sn = tsi->tsi_batch->bat_session;
125 srpc_ping_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst;
126 srpc_ping_reply_t *reply = &rpc->crpc_replymsg.msg_body.ping_reply;
127 struct timeval tv;
128
129 LASSERT (sn != NULL);
130
131 if (rpc->crpc_status != 0) {
132 if (!tsi->tsi_stopping) /* rpc could have been aborted */
133 atomic_inc(&sn->sn_ping_errors);
134 CERROR ("Unable to ping %s (%d): %d\n",
135 libcfs_id2str(rpc->crpc_dest),
136 reqst->pnr_seq, rpc->crpc_status);
137 return;
138 }
139
140 if (rpc->crpc_replymsg.msg_magic != SRPC_MSG_MAGIC) {
141 __swab32s(&reply->pnr_seq);
142 __swab32s(&reply->pnr_magic);
143 __swab32s(&reply->pnr_status);
144 }
145
146 if (reply->pnr_magic != LST_PING_TEST_MAGIC) {
147 rpc->crpc_status = -EBADMSG;
148 atomic_inc(&sn->sn_ping_errors);
149 CERROR ("Bad magic %u from %s, %u expected.\n",
150 reply->pnr_magic, libcfs_id2str(rpc->crpc_dest),
151 LST_PING_TEST_MAGIC);
152 return;
153 }
154
155 if (reply->pnr_seq != reqst->pnr_seq) {
156 rpc->crpc_status = -EBADMSG;
157 atomic_inc(&sn->sn_ping_errors);
158 CERROR ("Bad seq %u from %s, %u expected.\n",
159 reply->pnr_seq, libcfs_id2str(rpc->crpc_dest),
160 reqst->pnr_seq);
161 return;
162 }
163
164 cfs_fs_timeval(&tv);
165 CDEBUG (D_NET, "%d reply in %u usec\n", reply->pnr_seq,
166 (unsigned)((tv.tv_sec - (unsigned)reqst->pnr_time_sec) * 1000000
167 + (tv.tv_usec - reqst->pnr_time_usec)));
168 return;
169 }
170
171 static int
ping_server_handle(struct srpc_server_rpc * rpc)172 ping_server_handle(struct srpc_server_rpc *rpc)
173 {
174 struct srpc_service *sv = rpc->srpc_scd->scd_svc;
175 srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
176 srpc_msg_t *replymsg = &rpc->srpc_replymsg;
177 srpc_ping_reqst_t *req = &reqstmsg->msg_body.ping_reqst;
178 srpc_ping_reply_t *rep = &rpc->srpc_replymsg.msg_body.ping_reply;
179
180 LASSERT (sv->sv_id == SRPC_SERVICE_PING);
181
182 if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
183 LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
184
185 __swab32s(&req->pnr_seq);
186 __swab32s(&req->pnr_magic);
187 __swab64s(&req->pnr_time_sec);
188 __swab64s(&req->pnr_time_usec);
189 }
190 LASSERT (reqstmsg->msg_type == srpc_service2request(sv->sv_id));
191
192 if (req->pnr_magic != LST_PING_TEST_MAGIC) {
193 CERROR ("Unexpected magic %08x from %s\n",
194 req->pnr_magic, libcfs_id2str(rpc->srpc_peer));
195 return -EINVAL;
196 }
197
198 rep->pnr_seq = req->pnr_seq;
199 rep->pnr_magic = LST_PING_TEST_MAGIC;
200
201 if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
202 replymsg->msg_ses_feats = LST_FEATS_MASK;
203 rep->pnr_status = EPROTO;
204 return 0;
205 }
206
207 replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
208
209 CDEBUG(D_NET, "Get ping %d from %s\n",
210 req->pnr_seq, libcfs_id2str(rpc->srpc_peer));
211 return 0;
212 }
213
214 sfw_test_client_ops_t ping_test_client;
ping_init_test_client(void)215 void ping_init_test_client(void)
216 {
217 ping_test_client.tso_init = ping_client_init;
218 ping_test_client.tso_fini = ping_client_fini;
219 ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
220 ping_test_client.tso_done_rpc = ping_client_done_rpc;
221 }
222
223 srpc_service_t ping_test_service;
ping_init_test_service(void)224 void ping_init_test_service(void)
225 {
226 ping_test_service.sv_id = SRPC_SERVICE_PING;
227 ping_test_service.sv_name = "ping_test";
228 ping_test_service.sv_handler = ping_server_handle;
229 ping_test_service.sv_wi_total = ping_srv_workitems;
230 }
231