On 7/11/2023 5:46 PM, Ayaz Akram via gem5-users wrote:
Hi Eliot,
Based on my understanding, when pkt->makeResponse() is called it updates the "cmd" of the pkt with
the appropriate responseCommand (this line of code: cmd = cmd.responseCommand();) . If you look at
"MemCmd::commandInfo[]" in packet.cc, the response command for a "WriteReq" command is "WriteResp".
And the attributes of a "WriteResp" command don't have "HasData", which is why the response pkt will
return false on a "hasData()" check.
You might also want to look at the struct CommandInfo in packet.hh.
Ah, yes - I was confusing hasData with the STATIC_DATA and DYNAMIC_DATA
properties, which have to do with whether the data field is set (and
with whether it needs to be deleted when the packet is deleted), which
is separate from the logical notion of whether the packet is carrying
data from one place to another.
Thanks for the reminder! EM
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