contrib/debug_tools/epython_scripts/ldlm_lockflags.py

   1 #!/usr/bin/env python
   2
   3 """
   4 Utility to print LDLM lock flags as strings
   5 Copyright (c) 2019 Cray Inc. All Rights Reserved.
   6 """
   7 from pykdump.API import *
   8 from crashlib.input import toint
   9 import argparse
  10
  11 description_short  = "Prints string identifiers for specified LDLM flags."
  12 LDLM_FL_ALL_FLAGS_MASK = 0x00FFFFFFC28F932F
  13
  14 ldlm_flags_tbl = {
  15     0x0000000000000001:  "LOCK_CHANGED",            # bit  0
  16     0x0000000000000002:  "BLOCK_GRANTED",           # bit  1
  17     0x0000000000000004:  "BLOCK_CONV",              # bit  2
  18     0x0000000000000008:  "BLOCK_WAIT",              # bit  3
  19     0x0000000000000010:  "SPECULATIVE",             # bit  4
  20     0x0000000000000020:  "AST_SENT",                # bit  5
  21     0x0000000000000100:  "REPLAY",                  # bit  8
  22     0x0000000000000200:  "INTENT_ONLY",             # bit  9
  23     0x0000000000001000:  "HAS_INTENT",              # bit 12
  24     0x0000000000008000:  "FLOCK_DEADLOCK",          # bit 15
  25     0x0000000000010000:  "DISCARD_DATA",            # bit 16
  26     0x0000000000020000:  "NO_TIMEOUT",              # bit 17
  27     0x0000000000040000:  "BLOCK_NOWAIT",            # bit 18
  28     0x0000000000080000:  "TEST_LOCK",               # bit 19
  29     0x0000000000100000:  "MATCH_LOCK",              # bit 20
  30     0x0000000000800000:  "CANCEL_ON_BLOCK",         # bit 23
  31     0x0000000001000000:  "COS_INCOMPAT",            # bit 24
  32     0x0000000002000000:  "CONVERTING",              # bit 25
  33     0x0000000010000000:  "LOCKAHEAD_OLD_RESERVED",  # bit 28
  34     0x0000000020000000:  "NO_EXPANSION",            # bit 29
  35     0x0000000040000000:  "DENY_ON_CONTENTION",      # bit 30
  36     0x0000000080000000:  "AST_DISCARD_DATA",        # bit 31
  37     0x0000000100000000:  "FAIL_LOC",                # bit 32
  38     0x0000000400000000:  "CBPENDING",               # bit 34
  39     0x0000000800000000:  "WAIT_NOREPROC",           # bit 35
  40     0x0000001000000000:  "CANCEL",                  # bit 36
  41     0x0000002000000000:  "LOCAL_ONLY",              # bit 37
  42     0x0000004000000000:  "FAILED",                  # bit 38
  43     0x0000008000000000:  "CANCELING",               # bit 39
  44     0x0000010000000000:  "LOCAL",                   # bit 40
  45     0x0000020000000000:  "LVB_READY",               # bit 41
  46     0x0000040000000000:  "KMS_IGNORE",              # bit 42
  47     0x0000080000000000:  "CP_REQD",                 # bit 43
  48     0x0000100000000000:  "CLEANED",                 # bit 44
  49     0x0000200000000000:  "ATOMIC_CB",               # bit 45
  50     0x0000400000000000:  "BL_AST",                  # bit 46
  51     0x0000800000000000:  "BL_DONE",                 # bit 47
  52     0x0001000000000000:  "NO_LRU",                  # bit 48
  53     0x0002000000000000:  "FAIL_NOTIFIED",           # bit 49
  54     0x0004000000000000:  "DESTROYED",               # bit 50
  55     0x0008000000000000:  "SERVER_LOCK",             # bit 51
  56     0x0010000000000000:  "RES_LOCKED",              # bit 52
  57     0x0020000000000000:  "WAITED",                  # bit 53
  58     0x0040000000000000:  "NS_SRV",                  # bit 54
  59     0x0080000000000000:  "EXCL",                    # bit 55
  60     0x0100000000000000:  "RESENT",                  # bit 56
  61     0x0200000000000000:  "COS_ENABLED",             # bit 57
  62     0x0400000000000000:  "NDELAY"                   # bit 58
  63 }
  64
  65 def print_flags(flag_dict, mask):
  66
  67     flags = ""
  68     tmp = mask
  69     for key, value in flag_dict.iteritems():
  70             if key & mask:
  71                 flags = flags + value + " "
  72                 tmp &= ~key
  73     print "mask: 0x%x = %s" % (mask, flags)
  74     if tmp != 0:
  75         print "unknown bits set in mask: 0x%x" % tmp
  76
  77 if __name__ == "__main__":
  78     description = "Prints string identifiers for specified LDLM flags."
  79     parser = argparse.ArgumentParser(description=description)
  80     parser.add_argument("bitmask", type=toint,
  81         help="LDLM flag bit mask to be translated")
  82     args = parser.parse_args()
  83     print_flags(ldlm_flags_tbl, args.bitmask)