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Hi all,
I am puzzled with data and state transition in such a
situation in MOESI_CMP_directory:
Assuming a cache miss in L1, so ask
for data to L2 which has state ILS. According to the protocol,
it just forwards the request to
L1' who has a shared copy. When the
L1' receives the Fwd_GETS request,
it sends the L1 with the shared data
by action "e_sendData".
However, after looking into the codes of e_sendData, I
found that the L1' would enqueue the ResponseLocal Data
into MessageBuffer responseNetwork_out,which as far as I know
is used to communicate between L1' and
L2'.
So, I am really confused how can the requestor
L1 get data from the
sharer L1' in such a situation?
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