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staging/lustre/lnet: Fix assert on empty group in selftest module
[deliverable/linux.git] / drivers / staging / lustre / lnet / selftest / console.h
CommitLineData
d7e09d03
PT		 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) 2011, 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/console.h
37 *
38 * kernel structure for LST console
39 *
40 * Author: Liang Zhen <liangzhen@clusterfs.com>
41 */
42
43#ifndef __LST_CONSOLE_H__
44#define __LST_CONSOLE_H__
45
46
47#include <linux/libcfs/libcfs.h>
48#include <linux/lnet/lnet.h>
49#include <linux/lnet/lib-types.h>
50#include <linux/lnet/lnetst.h>
51#include "selftest.h"
52#include "conrpc.h"
53
54typedef struct lstcon_node {
55 lnet_process_id_t nd_id; /* id of the node */
56 int nd_ref; /* reference count */
57 int nd_state; /* state of the node */
58 int nd_timeout; /* session timeout */
59 cfs_time_t nd_stamp; /* timestamp of last replied RPC */
60 struct lstcon_rpc nd_ping; /* ping rpc */
61} lstcon_node_t; /*** node descriptor */
62
63typedef struct {
64 struct list_head ndl_link; /* chain on list */
65 struct list_head ndl_hlink; /* chain on hash */
66 lstcon_node_t *ndl_node; /* pointer to node */
67} lstcon_ndlink_t; /*** node link descriptor */
68
69typedef struct {
70 struct list_head grp_link; /* chain on global group list */
71 int grp_ref; /* reference count */
72 int grp_userland; /* has userland nodes */
73 int grp_nnode; /* # of nodes */
74 char grp_name[LST_NAME_SIZE]; /* group name */
75
76 struct list_head grp_trans_list; /* transaction list */
77 struct list_head grp_ndl_list; /* nodes list */
78 struct list_head grp_ndl_hash[0];/* hash table for nodes */
79} lstcon_group_t; /*** (alias of nodes) group descriptor */
80
81#define LST_BATCH_IDLE 0xB0 /* idle batch */
82#define LST_BATCH_RUNNING 0xB1 /* running batch */
83
84typedef struct lstcon_tsb_hdr {
85 lst_bid_t tsb_id; /* batch ID */
86 int tsb_index; /* test index */
87} lstcon_tsb_hdr_t;
88
89typedef struct {
90 lstcon_tsb_hdr_t bat_hdr; /* test_batch header */
91 struct list_head bat_link; /* chain on session's batches list */
92 int bat_ntest; /* # of test */
93 int bat_state; /* state of the batch */
94 int bat_arg; /* parameter for run|stop, timeout for run, force for stop */
95 char bat_name[LST_NAME_SIZE]; /* name of batch */
96
97 struct list_head bat_test_list; /* list head of tests (lstcon_test_t) */
98 struct list_head bat_trans_list; /* list head of transaction */
99 struct list_head bat_cli_list; /* list head of client nodes (lstcon_node_t) */
100 struct list_head *bat_cli_hash; /* hash table of client nodes */
101 struct list_head bat_srv_list; /* list head of server nodes */
102 struct list_head *bat_srv_hash; /* hash table of server nodes */
103} lstcon_batch_t; /*** (tests ) batch descritptor */
104
105typedef struct lstcon_test {
106 lstcon_tsb_hdr_t tes_hdr; /* test batch header */
107 struct list_head tes_link; /* chain on batch's tests list */
108 lstcon_batch_t *tes_batch; /* pointer to batch */
109
110 int tes_type; /* type of the test, i.e: bulk, ping */
111 int tes_stop_onerr; /* stop on error */
112 int tes_oneside; /* one-sided test */
113 int tes_concur; /* concurrency */
114 int tes_loop; /* loop count */
115 int tes_dist; /* nodes distribution of target group */
116 int tes_span; /* nodes span of target group */
117 int tes_cliidx; /* client index, used for RPC creating */
118
119 struct list_head tes_trans_list; /* transaction list */
120 lstcon_group_t *tes_src_grp; /* group run the test */
121 lstcon_group_t *tes_dst_grp; /* target group */
122
123 int tes_paramlen; /* test parameter length */
124 char tes_param[0]; /* test parameter */
125} lstcon_test_t; /*** a single test descriptor */
126
127#define LST_GLOBAL_HASHSIZE 503 /* global nodes hash table size */
128#define LST_NODE_HASHSIZE 239 /* node hash table (for batch or group) */
129
130#define LST_SESSION_NONE 0x0 /* no session */
131#define LST_SESSION_ACTIVE 0x1 /* working session */
132
133#define LST_CONSOLE_TIMEOUT 300 /* default console timeout */
134
135typedef struct {
136 struct mutex ses_mutex; /* only 1 thread in session */
137 lst_sid_t ses_id; /* global session id */
138 int ses_key; /* local session key */
139 int ses_state; /* state of session */
140 int ses_timeout; /* timeout in seconds */
141 time_t ses_laststamp; /* last operation stamp (seconds) */
142 /** tests features of the session */
143 unsigned ses_features;
144 /** features are synced with remote test nodes */
145 unsigned ses_feats_updated:1;
146 /** force creating */
147 unsigned ses_force:1;
148 /** session is shutting down */
149 unsigned ses_shutdown:1;
150 /** console is timedout */
151 unsigned ses_expired:1;
152 __u64 ses_id_cookie; /* batch id cookie */
153 char ses_name[LST_NAME_SIZE]; /* session name */
154 lstcon_rpc_trans_t *ses_ping; /* session pinger */
155 stt_timer_t ses_ping_timer; /* timer for pinger */
156 lstcon_trans_stat_t ses_trans_stat; /* transaction stats */
157
158 struct list_head ses_trans_list; /* global list of transaction */
159 struct list_head ses_grp_list; /* global list of groups */
160 struct list_head ses_bat_list; /* global list of batches */
161 struct list_head ses_ndl_list; /* global list of nodes */
162 struct list_head *ses_ndl_hash; /* hash table of nodes */
163
164 spinlock_t ses_rpc_lock; /* serialize */
165 atomic_t ses_rpc_counter;/* # of initialized RPCs */
166 struct list_head ses_rpc_freelist; /* idle console rpc */
167} lstcon_session_t; /*** session descriptor */
168
169extern lstcon_session_t console_session;
170
171static inline lstcon_trans_stat_t *
172lstcon_trans_stat(void)
173{
174 return &console_session.ses_trans_stat;
175}
176
177static inline struct list_head *
178lstcon_id2hash (lnet_process_id_t id, struct list_head *hash)
179{
180 unsigned int idx = LNET_NIDADDR(id.nid) % LST_NODE_HASHSIZE;
181
182 return &hash[idx];
183}
184
185extern int lstcon_session_match(lst_sid_t sid);
186extern int lstcon_session_new(char *name, int key, unsigned version,
187 int timeout, int flags, lst_sid_t *sid_up);
188extern int lstcon_session_info(lst_sid_t *sid_up, int *key, unsigned *verp,
189 lstcon_ndlist_ent_t *entp, char *name_up, int len);
190extern int lstcon_session_end(void);
191extern int lstcon_session_debug(int timeout, struct list_head *result_up);
192extern int lstcon_session_feats_check(unsigned feats);
193extern int lstcon_batch_debug(int timeout, char *name,
194 int client, struct list_head *result_up);
195extern int lstcon_group_debug(int timeout, char *name,
196 struct list_head *result_up);
197extern int lstcon_nodes_debug(int timeout, int nnd, lnet_process_id_t *nds_up,
198 struct list_head *result_up);
199extern int lstcon_group_add(char *name);
200extern int lstcon_group_del(char *name);
201extern int lstcon_group_clean(char *name, int args);
202extern int lstcon_group_refresh(char *name, struct list_head *result_up);
203extern int lstcon_nodes_add(char *name, int nnd, lnet_process_id_t *nds_up,
204 unsigned *featp, struct list_head *result_up);
205extern int lstcon_nodes_remove(char *name, int nnd, lnet_process_id_t *nds_up,
206 struct list_head *result_up);
207extern int lstcon_group_info(char *name, lstcon_ndlist_ent_t *gent_up,
208 int *index_p, int *ndent_p, lstcon_node_ent_t *ndents_up);
209extern int lstcon_group_list(int idx, int len, char *name_up);
210extern int lstcon_batch_add(char *name);
211extern int lstcon_batch_run(char *name, int timeout,
212 struct list_head *result_up);
213extern int lstcon_batch_stop(char *name, int force,
214 struct list_head *result_up);
215extern int lstcon_test_batch_query(char *name, int testidx,
216 int client, int timeout,
217 struct list_head *result_up);
218extern int lstcon_batch_del(char *name);
219extern int lstcon_batch_list(int idx, int namelen, char *name_up);
220extern int lstcon_batch_info(char *name, lstcon_test_batch_ent_t *ent_up,
221 int server, int testidx, int *index_p,
222 int *ndent_p, lstcon_node_ent_t *dents_up);
223extern int lstcon_group_stat(char *grp_name, int timeout,
224 struct list_head *result_up);
225extern int lstcon_nodes_stat(int count, lnet_process_id_t *ids_up,
226 int timeout, struct list_head *result_up);
4f317748
AS		 227extern int lstcon_test_add(char *batch_name, int type, int loop,
228 int concur, int dist, int span,
229 char *src_name, char *dst_name,
d7e09d03
PT		 230 void *param, int paramlen, int *retp,
231 struct list_head *result_up);
d7e09d03 232#endif
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