this variable is a helper to tell libiscsi to not reset the nops_in_flight
on receival of a NOP-Out if the oldest element in the waitpdu queue is
not changed since the last NOP-Out.
The idea is that we can detect a command that the target silently dropped
by this mechanism and run into a NOP timeout forcing a reconnect.
This environment variable is not suitable if a command is send that is taking more than
the allowed timeout for a NOP-Out as a reply to a initiator generated NOP-In
(or several NOP-Outs if more than 1 in flight is allowed).
Signed-off-by: Peter Lieven <pl@kamp.de>
e9d67540e1