kernel/Documentation/scsi/scsi_transport_srp/rport_state_diagram.dot

   1 digraph srp_initiator {
   2         node [shape = doublecircle]; running lost;
   3         node [shape = circle];
   4
   5         {
   6           rank = min;
   7           running_rta   [ label = "running;\nreconnect\ntimer\nactive" ];
   8         };
   9         running         [ label = "running;\nreconnect\ntimer\nstopped" ];
  10         blocked;
  11         failfast        [ label = "fail I/O\nfast" ];
  12         lost;
  13
  14         running -> running_rta          [ label = "fast_io_fail_tmo = off and\ndev_loss_tmo = off;\nsrp_start_tl_fail_timers()" ];
  15         running_rta -> running          [ label = "fast_io_fail_tmo = off and\ndev_loss_tmo = off;\nreconnecting succeeded" ];
  16         running -> blocked              [ label = "fast_io_fail_tmo >= 0 or\ndev_loss_tmo >= 0;\nsrp_start_tl_fail_timers()" ];
  17         running -> failfast             [ label = "fast_io_fail_tmo = off and\ndev_loss_tmo = off;\nreconnecting failed\n" ];
  18         blocked -> failfast             [ label = "fast_io_fail_tmo\nexpired or\nreconnecting\nfailed" ];
  19         blocked -> lost                 [ label = "dev_loss_tmo\nexpired or\nsrp_stop_rport_timers()" ];
  20         failfast -> lost                [ label = "dev_loss_tmo\nexpired or\nsrp_stop_rport_timers()" ];
  21         blocked -> running              [ label = "reconnecting\nsucceeded" ];
  22         failfast -> failfast            [ label = "reconnecting\nfailed" ];
  23         failfast -> running             [ label = "reconnecting\nsucceeded" ];
  24         running -> lost                 [ label = "srp_stop_rport_timers()" ];
  25         running_rta -> lost             [ label = "srp_stop_rport_timers()" ];
  26 }