ACE Protocol: Why AC Snoop channel dont have ID,just like AR/AW channel？
For example:
there is M1,M2,M3.
if M1 and M2 readunique the same Cache Line X, innterconect need send snoop request to M2/M3 for M1, and send request to M1/M3 for M2.
the specification ask the the first two snoop M2/M3 for M1 first ,then M send RACK, the innterconnect will process the request to M1/M3 for M2.
Question1: the M2/M3 snoop request can be outstanding or not ?
Queston2: if interconnect send snoop request to same snooped-master ,the request can be outstanding or not ?
if they can be outstanding , the snooped-master process snoop request should not out of order. is it right?