1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef ISCSI_TARGET_STAT_H
3#define ISCSI_TARGET_STAT_H
4
5#include <linux/types.h>
6#include <linux/spinlock.h>
7#include <linux/socket.h>
8
9/*
10 * For struct iscsi_tiqn->tiqn_wwn default groups
11 */
12extern const struct config_item_type iscsi_stat_instance_cit;
13extern const struct config_item_type iscsi_stat_sess_err_cit;
14extern const struct config_item_type iscsi_stat_tgt_attr_cit;
15extern const struct config_item_type iscsi_stat_login_cit;
16extern const struct config_item_type iscsi_stat_logout_cit;
17
18/*
19 * For struct iscsi_session->se_sess default groups
20 */
21extern const struct config_item_type iscsi_stat_sess_cit;
22
23/* iSCSI session error types */
24#define ISCSI_SESS_ERR_UNKNOWN 0
25#define ISCSI_SESS_ERR_DIGEST 1
26#define ISCSI_SESS_ERR_CXN_TIMEOUT 2
27#define ISCSI_SESS_ERR_PDU_FORMAT 3
28
29/* iSCSI session error stats */
30struct iscsi_sess_err_stats {
31 spinlock_t lock;
32 u32 digest_errors;
33 u32 cxn_timeout_errors;
34 u32 pdu_format_errors;
35 u32 last_sess_failure_type;
36 char last_sess_fail_rem_name[ISCSI_IQN_LEN];
37} ____cacheline_aligned;
38
39/* iSCSI login failure types (sub oids) */
40#define ISCSI_LOGIN_FAIL_OTHER 2
41#define ISCSI_LOGIN_FAIL_REDIRECT 3
42#define ISCSI_LOGIN_FAIL_AUTHORIZE 4
43#define ISCSI_LOGIN_FAIL_AUTHENTICATE 5
44#define ISCSI_LOGIN_FAIL_NEGOTIATE 6
45
46/* iSCSI login stats */
47struct iscsi_login_stats {
48 spinlock_t lock;
49 u32 accepts;
50 u32 other_fails;
51 u32 redirects;
52 u32 authorize_fails;
53 u32 authenticate_fails;
54 u32 negotiate_fails; /* used for notifications */
55 u64 last_fail_time; /* time stamp (jiffies) */
56 u32 last_fail_type;
57 int last_intr_fail_ip_family;
58 struct sockaddr_storage last_intr_fail_sockaddr;
59 char last_intr_fail_name[ISCSI_IQN_LEN];
60} ____cacheline_aligned;
61
62/* iSCSI logout stats */
63struct iscsi_logout_stats {
64 spinlock_t lock;
65 u32 normal_logouts;
66 u32 abnormal_logouts;
67} ____cacheline_aligned;
68
69#endif /*** ISCSI_TARGET_STAT_H ***/
70

source code of linux/include/target/iscsi/iscsi_target_stat.h