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