Viewing: ldlm_lockflags.py
#!/usr/bin/env python
"""
Utility to print LDLM lock flags as strings
Copyright (c) 2019 Cray Inc. All Rights Reserved.
"""
from pykdump.API import *
from crashlib.input import toint
import argparse
description_short = "Prints string identifiers for specified LDLM flags."
LDLM_FL_ALL_FLAGS_MASK = 0x00FFFFFFC28F932F
ldlm_flags_tbl = {
0x0000000000000001: "LOCK_CHANGED", # bit 0
0x0000000000000002: "BLOCK_GRANTED", # bit 1
0x0000000000000004: "BLOCK_CONV", # bit 2
0x0000000000000008: "BLOCK_WAIT", # bit 3
0x0000000000000010: "SPECULATIVE", # bit 4
0x0000000000000020: "AST_SENT", # bit 5
0x0000000000000100: "REPLAY", # bit 8
0x0000000000000200: "INTENT_ONLY", # bit 9
0x0000000000001000: "HAS_INTENT", # bit 12
0x0000000000008000: "FLOCK_DEADLOCK", # bit 15
0x0000000000010000: "DISCARD_DATA", # bit 16
0x0000000000020000: "NO_TIMEOUT", # bit 17
0x0000000000040000: "BLOCK_NOWAIT", # bit 18
0x0000000000080000: "TEST_LOCK", # bit 19
0x0000000000100000: "MATCH_LOCK", # bit 20
0x0000000000800000: "CANCEL_ON_BLOCK", # bit 23
0x0000000001000000: "COS_INCOMPAT", # bit 24
0x0000000002000000: "CONVERTING", # bit 25
0x0000000010000000: "LOCKAHEAD_OLD_RESERVED", # bit 28
0x0000000020000000: "NO_EXPANSION", # bit 29
0x0000000040000000: "DENY_ON_CONTENTION", # bit 30
0x0000000080000000: "AST_DISCARD_DATA", # bit 31
0x0000000100000000: "FAIL_LOC", # bit 32
0x0000000400000000: "CBPENDING", # bit 34
0x0000000800000000: "WAIT_NOREPROC", # bit 35
0x0000001000000000: "CANCEL", # bit 36
0x0000002000000000: "LOCAL_ONLY", # bit 37
0x0000004000000000: "FAILED", # bit 38
0x0000008000000000: "CANCELING", # bit 39
0x0000010000000000: "LOCAL", # bit 40
0x0000020000000000: "LVB_READY", # bit 41
0x0000040000000000: "KMS_IGNORE", # bit 42
0x0000080000000000: "CP_REQD", # bit 43
0x0000100000000000: "CLEANED", # bit 44
0x0000200000000000: "ATOMIC_CB", # bit 45
0x0000400000000000: "BL_AST", # bit 46
0x0000800000000000: "BL_DONE", # bit 47
0x0001000000000000: "NO_LRU", # bit 48
0x0002000000000000: "FAIL_NOTIFIED", # bit 49
0x0004000000000000: "DESTROYED", # bit 50
0x0010000000000000: "RES_LOCKED", # bit 52
0x0020000000000000: "WAITED", # bit 53
0x0040000000000000: "NS_SRV", # bit 54
0x0080000000000000: "EXCL", # bit 55
0x0100000000000000: "RESENT", # bit 56
0x0200000000000000: "COS_ENABLED", # bit 57
0x0400000000000000: "NDELAY" # bit 58
}
def print_flags(flag_dict, mask):
flags = ""
tmp = mask
for key, value in flag_dict.iteritems():
if key & mask:
flags = flags + value + " "
tmp &= ~key
print("mask: 0x%x = %s" % (mask, flags))
if tmp != 0:
print("unknown bits set in mask: 0x%x" % tmp)
if __name__ == "__main__":
description = "Prints string identifiers for specified LDLM flags."
parser = argparse.ArgumentParser(description=description)
parser.add_argument("bitmask", type=toint,
help="LDLM flag bit mask to be translated")
args = parser.parse_args()
print_flags(ldlm_flags_tbl, args.bitmask)
