Uncore Manual

Reference Number: 329468-002 191
Uncore Performance Monitoring
Packet Matching Reference
Table 2-218. Opcodes (Alphabetical Listing)
1001 AckCnfltWbI RspFwdI FrcAckCnlft
(only from xNCs)
---
1010 RdDataMigratory RspFwdS Cmp_FwdCode SnpDataMigratory
(only for xNCs)
1011 --- RspFwdIWb Cmp_FwdInvOwn
(only for xNCs)
---
1100 WbMtoI RspFwdSWb Cmp_FwdInvItoE ---
1101 WbMtoE RspIWb --- ---
1110 WbMtoS
(only from xNCs)
RspSWb --- ---
1111 AckCnflt --- --- PrefetchHint
Opc NCS NCB DRS
0000 NcRd NcWr DataC_(FEIMS)
0001 IntAck WcWr DataC_(FEIMS)_FrcAck
Cnflt
(only from xNCs)
0010 --- --- DataC_(FEIMS)_Cmp
0011 FERR --- DataNc
0100 NcRdPtl --- WbIData
0101 NcCfgRd --- WbSData
0110 --- --- WbEData
0111 NcIORd --- NonSnpWrData
1000 --- NcMsgB WbIDataPtl
1001 NcCfgWr IntLogical ---
1010 --- IntPhysical WbEDataPtl
(only from xNCs)
1011 NcIOWr IntPrioUpd NonSnpWrdataPtl
1100 NcMsgS NcWrPtl ---
1101 NcP2PS WcWrPtl ---
1110 --- NcP2PB ---
1111 --- ---
Name Opc MC
Gen
By?
Desc
AbortTO 0101 NDR Abort Time-out Response
AckCnflt 1111 HOM0 Co,Hi Acknowledge receipt of Data_* and Cmp/
FrcAckCnflt, signal a possible conflict scenario.
AckCnfltWbI 1001 HOM0 Co,Hi In addition to signaling AckCnflt, the caching agent
has also written the dirty cache line data plus any
partial write data back to memory in a WBiData[Ptl]
message and transitioned the cache line state to I.
Cmp 1000 NDR Uo,
Ci,Co,
Ho
All snoop responses gathered, no conflicts
CmpD 0100 NDR Uo, Ci Completion with Data
Opc HOM0 HOM1 NDR SNP