block/drbd/drbd_strings.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003   drbd.h
0004
0005   This file is part of DRBD by Philipp Reisner and Lars Ellenberg.
0006
0007   Copyright (C) 2003-2008, LINBIT Information Technologies GmbH.
0008   Copyright (C) 2003-2008, Philipp Reisner <philipp.reisner@linbit.com>.
0009   Copyright (C) 2003-2008, Lars Ellenberg <lars.ellenberg@linbit.com>.
0010
0011
0012 */
0013
0014 #include <linux/drbd.h>
0015 #include "drbd_strings.h"
0016
0017 static const char * const drbd_conn_s_names[] = {
0018     [C_STANDALONE]       = "StandAlone",
0019     [C_DISCONNECTING]    = "Disconnecting",
0020     [C_UNCONNECTED]      = "Unconnected",
0021     [C_TIMEOUT]          = "Timeout",
0022     [C_BROKEN_PIPE]      = "BrokenPipe",
0023     [C_NETWORK_FAILURE]  = "NetworkFailure",
0024     [C_PROTOCOL_ERROR]   = "ProtocolError",
0025     [C_WF_CONNECTION]    = "WFConnection",
0026     [C_WF_REPORT_PARAMS] = "WFReportParams",
0027     [C_TEAR_DOWN]        = "TearDown",
0028     [C_CONNECTED]        = "Connected",
0029     [C_STARTING_SYNC_S]  = "StartingSyncS",
0030     [C_STARTING_SYNC_T]  = "StartingSyncT",
0031     [C_WF_BITMAP_S]      = "WFBitMapS",
0032     [C_WF_BITMAP_T]      = "WFBitMapT",
0033     [C_WF_SYNC_UUID]     = "WFSyncUUID",
0034     [C_SYNC_SOURCE]      = "SyncSource",
0035     [C_SYNC_TARGET]      = "SyncTarget",
0036     [C_PAUSED_SYNC_S]    = "PausedSyncS",
0037     [C_PAUSED_SYNC_T]    = "PausedSyncT",
0038     [C_VERIFY_S]         = "VerifyS",
0039     [C_VERIFY_T]         = "VerifyT",
0040     [C_AHEAD]            = "Ahead",
0041     [C_BEHIND]           = "Behind",
0042 };
0043
0044 static const char * const drbd_role_s_names[] = {
0045     [R_PRIMARY]   = "Primary",
0046     [R_SECONDARY] = "Secondary",
0047     [R_UNKNOWN]   = "Unknown"
0048 };
0049
0050 static const char * const drbd_disk_s_names[] = {
0051     [D_DISKLESS]     = "Diskless",
0052     [D_ATTACHING]    = "Attaching",
0053     [D_FAILED]       = "Failed",
0054     [D_NEGOTIATING]  = "Negotiating",
0055     [D_INCONSISTENT] = "Inconsistent",
0056     [D_OUTDATED]     = "Outdated",
0057     [D_UNKNOWN]      = "DUnknown",
0058     [D_CONSISTENT]   = "Consistent",
0059     [D_UP_TO_DATE]   = "UpToDate",
0060 };
0061
0062 static const char * const drbd_state_sw_errors[] = {
0063     [-SS_TWO_PRIMARIES] = "Multiple primaries not allowed by config",
0064     [-SS_NO_UP_TO_DATE_DISK] = "Need access to UpToDate data",
0065     [-SS_NO_LOCAL_DISK] = "Can not resync without local disk",
0066     [-SS_NO_REMOTE_DISK] = "Can not resync without remote disk",
0067     [-SS_CONNECTED_OUTDATES] = "Refusing to be Outdated while Connected",
0068     [-SS_PRIMARY_NOP] = "Refusing to be Primary while peer is not outdated",
0069     [-SS_RESYNC_RUNNING] = "Can not start OV/resync since it is already active",
0070     [-SS_ALREADY_STANDALONE] = "Can not disconnect a StandAlone device",
0071     [-SS_CW_FAILED_BY_PEER] = "State change was refused by peer node",
0072     [-SS_IS_DISKLESS] = "Device is diskless, the requested operation requires a disk",
0073     [-SS_DEVICE_IN_USE] = "Device is held open by someone",
0074     [-SS_NO_NET_CONFIG] = "Have no net/connection configuration",
0075     [-SS_NO_VERIFY_ALG] = "Need a verify algorithm to start online verify",
0076     [-SS_NEED_CONNECTION] = "Need a connection to start verify or resync",
0077     [-SS_NOT_SUPPORTED] = "Peer does not support protocol",
0078     [-SS_LOWER_THAN_OUTDATED] = "Disk state is lower than outdated",
0079     [-SS_IN_TRANSIENT_STATE] = "In transient state, retry after next state change",
0080     [-SS_CONCURRENT_ST_CHG] = "Concurrent state changes detected and aborted",
0081     [-SS_OUTDATE_WO_CONN] = "Need a connection for a graceful disconnect/outdate peer",
0082     [-SS_O_VOL_PEER_PRI] = "Other vol primary on peer not allowed by config",
0083 };
0084
0085 const char *drbd_conn_str(enum drbd_conns s)
0086 {
0087     /* enums are unsigned... */
0088     return s > C_BEHIND ? "TOO_LARGE" : drbd_conn_s_names[s];
0089 }
0090
0091 const char *drbd_role_str(enum drbd_role s)
0092 {
0093     return s > R_SECONDARY   ? "TOO_LARGE" : drbd_role_s_names[s];
0094 }
0095
0096 const char *drbd_disk_str(enum drbd_disk_state s)
0097 {
0098     return s > D_UP_TO_DATE    ? "TOO_LARGE" : drbd_disk_s_names[s];
0099 }
0100
0101 const char *drbd_set_st_err_str(enum drbd_state_rv err)
0102 {
0103     return err <= SS_AFTER_LAST_ERROR ? "TOO_SMALL" :
0104            err > SS_TWO_PRIMARIES ? "TOO_LARGE"
0105             : drbd_state_sw_errors[-err];
0106 }