Dont call READCAPACITY from every single test.
Remove two arguments from the test signatures and turn them into globals.
remove the ret++ silliness. Tests return 0 : all ok, -2, skipped or -1 : test failed
This finally makes T1040 trigger the cmdsn overflow deadlock.
Its a bad idea to mangle on negotiated parameters as this leads
to protocol errors.
We also need to avoid overlapping writes as this leads also
to protocol errors.
Additionally we test with and with (if available) immediate data.
Signed-off-by: Peter Lieven <pl@kamp.de>
so that i/o from the initiator stops flowing and are just queued locally
until teh cmdsn window opens up again.
Send a lot of writes that block until we have processed the R2T
back from the target and verify we can still make process when we
have saturated the cmdsn window and are also blocked waiting for R2Ts.
