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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 drbd.h
4
5 This file is part of DRBD by Philipp Reisner and Lars Ellenberg.
6
7 Copyright (C) 2003-2008, LINBIT Information Technologies GmbH.
8 Copyright (C) 2003-2008, Philipp Reisner <[email protected]>.
9 Copyright (C) 2003-2008, Lars Ellenberg <[email protected]>.
10
11
12*/
13
14#include <linux/drbd.h>
15#include "drbd_strings.h"
16
17static const char * const drbd_conn_s_names[] = {
18 [C_STANDALONE] = "StandAlone",
19 [C_DISCONNECTING] = "Disconnecting",
20 [C_UNCONNECTED] = "Unconnected",
21 [C_TIMEOUT] = "Timeout",
22 [C_BROKEN_PIPE] = "BrokenPipe",
23 [C_NETWORK_FAILURE] = "NetworkFailure",
24 [C_PROTOCOL_ERROR] = "ProtocolError",
25 [C_WF_CONNECTION] = "WFConnection",
26 [C_WF_REPORT_PARAMS] = "WFReportParams",
27 [C_TEAR_DOWN] = "TearDown",
28 [C_CONNECTED] = "Connected",
29 [C_STARTING_SYNC_S] = "StartingSyncS",
30 [C_STARTING_SYNC_T] = "StartingSyncT",
31 [C_WF_BITMAP_S] = "WFBitMapS",
32 [C_WF_BITMAP_T] = "WFBitMapT",
33 [C_WF_SYNC_UUID] = "WFSyncUUID",
34 [C_SYNC_SOURCE] = "SyncSource",
35 [C_SYNC_TARGET] = "SyncTarget",
36 [C_PAUSED_SYNC_S] = "PausedSyncS",
37 [C_PAUSED_SYNC_T] = "PausedSyncT",
38 [C_VERIFY_S] = "VerifyS",
39 [C_VERIFY_T] = "VerifyT",
40 [C_AHEAD] = "Ahead",
41 [C_BEHIND] = "Behind",
42};
43
44static const char * const drbd_role_s_names[] = {
45 [R_PRIMARY] = "Primary",
46 [R_SECONDARY] = "Secondary",
47 [R_UNKNOWN] = "Unknown"
48};
49
50static const char * const drbd_disk_s_names[] = {
51 [D_DISKLESS] = "Diskless",
52 [D_ATTACHING] = "Attaching",
53 [D_FAILED] = "Failed",
54 [D_NEGOTIATING] = "Negotiating",
55 [D_INCONSISTENT] = "Inconsistent",
56 [D_OUTDATED] = "Outdated",
57 [D_UNKNOWN] = "DUnknown",
58 [D_CONSISTENT] = "Consistent",
59 [D_UP_TO_DATE] = "UpToDate",
60};
61
62static const char * const drbd_state_sw_errors[] = {
63 [-SS_TWO_PRIMARIES] = "Multiple primaries not allowed by config",
64 [-SS_NO_UP_TO_DATE_DISK] = "Need access to UpToDate data",
65 [-SS_NO_LOCAL_DISK] = "Can not resync without local disk",
66 [-SS_NO_REMOTE_DISK] = "Can not resync without remote disk",
67 [-SS_CONNECTED_OUTDATES] = "Refusing to be Outdated while Connected",
68 [-SS_PRIMARY_NOP] = "Refusing to be Primary while peer is not outdated",
69 [-SS_RESYNC_RUNNING] = "Can not start OV/resync since it is already active",
70 [-SS_ALREADY_STANDALONE] = "Can not disconnect a StandAlone device",
71 [-SS_CW_FAILED_BY_PEER] = "State change was refused by peer node",
72 [-SS_IS_DISKLESS] = "Device is diskless, the requested operation requires a disk",
73 [-SS_DEVICE_IN_USE] = "Device is held open by someone",
74 [-SS_NO_NET_CONFIG] = "Have no net/connection configuration",
75 [-SS_NO_VERIFY_ALG] = "Need a verify algorithm to start online verify",
76 [-SS_NEED_CONNECTION] = "Need a connection to start verify or resync",
77 [-SS_NOT_SUPPORTED] = "Peer does not support protocol",
78 [-SS_LOWER_THAN_OUTDATED] = "Disk state is lower than outdated",
79 [-SS_IN_TRANSIENT_STATE] = "In transient state, retry after next state change",
80 [-SS_CONCURRENT_ST_CHG] = "Concurrent state changes detected and aborted",
81 [-SS_OUTDATE_WO_CONN] = "Need a connection for a graceful disconnect/outdate peer",
82 [-SS_O_VOL_PEER_PRI] = "Other vol primary on peer not allowed by config",
83};
84
85const char *drbd_conn_str(enum drbd_conns s)
86{
87 /* enums are unsigned... */
88 return s > C_BEHIND ? "TOO_LARGE" : drbd_conn_s_names[s];
89}
90
91const char *drbd_role_str(enum drbd_role s)
92{
93 return s > R_SECONDARY ? "TOO_LARGE" : drbd_role_s_names[s];
94}
95
96const char *drbd_disk_str(enum drbd_disk_state s)
97{
98 return s > D_UP_TO_DATE ? "TOO_LARGE" : drbd_disk_s_names[s];
99}
100
101const char *drbd_set_st_err_str(enum drbd_state_rv err)
102{
103 return err <= SS_AFTER_LAST_ERROR ? "TOO_SMALL" :
104 err > SS_TWO_PRIMARIES ? "TOO_LARGE"
105 : drbd_state_sw_errors[-err];
106}