struct sublog — subchannel logout area
struct sublog {
__u32 res0:1;
__u32 esf:7;
__u32 lpum:8;
__u32 arep:1;
__u32 fvf:5;
__u32 sacc:2;
__u32 termc:2;
__u32 devsc:1;
__u32 serr:1;
__u32 ioerr:1;
__u32 seqc:3;
}; reserved
extended status flags
last path used mask
ancillary report
field-validity flags
storage access code
termination code
device-status check
secondary error
i/o-error alert
sequence code