[
    {
        "BriefDescription": "Total Write Cache Occupancy; Any Source",
        "EventCode": "0x12",
        "EventName": "UNC_I_CACHE_TOTAL_OCCUPANCY.ANY",
        "PerPkg": "1",
        "PublicDescription": "Accumulates the number of reads and writes that are outstanding in the uncore in each cycle.  This is effectively the sum of the READ_OCCUPANCY and WRITE_OCCUPANCY events.; Tracks all requests from any source port.",
        "UMask": "0x1",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Total Write Cache Occupancy; Select Source",
        "EventCode": "0x12",
        "EventName": "UNC_I_CACHE_TOTAL_OCCUPANCY.SOURCE",
        "PerPkg": "1",
        "PublicDescription": "Accumulates the number of reads and writes that are outstanding in the uncore in each cycle.  This is effectively the sum of the READ_OCCUPANCY and WRITE_OCCUPANCY events.; Tracks only those requests that come from the port specified in the IRP_PmonFilter.OrderingQ register.  This register allows one to select one specific queue.  It is not possible to monitor multiple queues at a time.",
        "UMask": "0x2",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Clocks in the IRP",
        "EventName": "UNC_I_CLOCKTICKS",
        "PerPkg": "1",
        "PublicDescription": "Number of clocks in the IRP.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; CLFlush",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.CLFLUSH",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x80",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; CRd",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.CRD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x2",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; DRd",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.DRD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x4",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; PCIDCAHin5t",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.PCIDCAHINT",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x20",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; PCIRdCur",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.PCIRDCUR",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x1",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; PCIItoM",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.PCITOM",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x10",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; RFO",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.RFO",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x8",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Coherent Ops; WbMtoI",
        "EventCode": "0x13",
        "EventName": "UNC_I_COHERENT_OPS.WBMTOI",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of coherency related operations servied by the IRP",
        "UMask": "0x40",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Cache Inserts of Atomic Transactions as Secondary",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.2ND_ATOMIC_INSERT",
        "PerPkg": "1",
        "UMask": "0x10",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Cache Inserts of Read Transactions as Secondary",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.2ND_RD_INSERT",
        "PerPkg": "1",
        "UMask": "0x4",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Cache Inserts of Write Transactions as Secondary",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.2ND_WR_INSERT",
        "PerPkg": "1",
        "UMask": "0x8",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Fastpath Rejects",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.FAST_REJ",
        "PerPkg": "1",
        "UMask": "0x2",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Fastpath Requests",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.FAST_REQ",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Fastpath Transfers From Primary to Secondary",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.FAST_XFER",
        "PerPkg": "1",
        "UMask": "0x20",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Prefetch Ack Hints From Primary to Secondary",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.PF_ACK_HINT",
        "PerPkg": "1",
        "UMask": "0x40",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 0; Prefetch TimeOut",
        "EventCode": "0x14",
        "EventName": "UNC_I_MISC0.PF_TIMEOUT",
        "PerPkg": "1",
        "PublicDescription": "Indicates the fetch for a previous prefetch wasn't accepted by the prefetch.   This happens in the case of a prefetch TimeOut",
        "UMask": "0x80",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1; Data Throttled",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.DATA_THROTTLE",
        "PerPkg": "1",
        "PublicDescription": "IRP throttled switch data",
        "UMask": "0x80",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.LOST_FWD",
        "PerPkg": "1",
        "UMask": "0x10",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1; Received Invalid",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.SEC_RCVD_INVLD",
        "PerPkg": "1",
        "PublicDescription": "Secondary received a transfer that did not have sufficient MESI state",
        "UMask": "0x20",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1; Received Valid",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.SEC_RCVD_VLD",
        "PerPkg": "1",
        "PublicDescription": "Secondary received a transfer that did have sufficient MESI state",
        "UMask": "0x40",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1; Slow Transfer of E Line",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.SLOW_E",
        "PerPkg": "1",
        "PublicDescription": "Secondary received a transfer that did have sufficient MESI state",
        "UMask": "0x4",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1; Slow Transfer of I Line",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.SLOW_I",
        "PerPkg": "1",
        "PublicDescription": "Snoop took cacheline ownership before write from data was committed.",
        "UMask": "0x1",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1; Slow Transfer of M Line",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.SLOW_M",
        "PerPkg": "1",
        "PublicDescription": "Snoop took cacheline ownership before write from data was committed.",
        "UMask": "0x8",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Misc Events - Set 1; Slow Transfer of S Line",
        "EventCode": "0x15",
        "EventName": "UNC_I_MISC1.SLOW_S",
        "PerPkg": "1",
        "PublicDescription": "Secondary received a transfer that did not have sufficient MESI state",
        "UMask": "0x2",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "AK Ingress Occupancy",
        "EventCode": "0xA",
        "EventName": "UNC_I_RxR_AK_INSERTS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of allocations into the AK Ingress.  This queue is where the IRP receives responses from R2PCIe (the ring).",
        "Unit": "IRP"
    },
    {
        "EventCode": "0x4",
        "EventName": "UNC_I_RxR_BL_DRS_CYCLES_FULL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the BL Ingress is full.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "BL Ingress Occupancy - DRS",
        "EventCode": "0x1",
        "EventName": "UNC_I_RxR_BL_DRS_INSERTS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of allocations into the BL Ingress.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "EventCode": "0x7",
        "EventName": "UNC_I_RxR_BL_DRS_OCCUPANCY",
        "PerPkg": "1",
        "PublicDescription": "Accumulates the occupancy of the BL Ingress in each cycles.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "EventCode": "0x5",
        "EventName": "UNC_I_RxR_BL_NCB_CYCLES_FULL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the BL Ingress is full.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "BL Ingress Occupancy - NCB",
        "EventCode": "0x2",
        "EventName": "UNC_I_RxR_BL_NCB_INSERTS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of allocations into the BL Ingress.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "EventCode": "0x8",
        "EventName": "UNC_I_RxR_BL_NCB_OCCUPANCY",
        "PerPkg": "1",
        "PublicDescription": "Accumulates the occupancy of the BL Ingress in each cycles.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "EventCode": "0x6",
        "EventName": "UNC_I_RxR_BL_NCS_CYCLES_FULL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the BL Ingress is full.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "BL Ingress Occupancy - NCS",
        "EventCode": "0x3",
        "EventName": "UNC_I_RxR_BL_NCS_INSERTS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of allocations into the BL Ingress.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "EventCode": "0x9",
        "EventName": "UNC_I_RxR_BL_NCS_OCCUPANCY",
        "PerPkg": "1",
        "PublicDescription": "Accumulates the occupancy of the BL Ingress in each cycles.  This queue is where the IRP receives data from R2PCIe (the ring).  It is used for data returns from read requets as well as outbound MMIO writes.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Snoop Responses; Hit E or S",
        "EventCode": "0x17",
        "EventName": "UNC_I_SNOOP_RESP.HIT_ES",
        "PerPkg": "1",
        "UMask": "0x4",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Snoop Responses; Hit I",
        "EventCode": "0x17",
        "EventName": "UNC_I_SNOOP_RESP.HIT_I",
        "PerPkg": "1",
        "UMask": "0x2",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Snoop Responses; Hit M",
        "EventCode": "0x17",
        "EventName": "UNC_I_SNOOP_RESP.HIT_M",
        "PerPkg": "1",
        "UMask": "0x8",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Snoop Responses; Miss",
        "EventCode": "0x17",
        "EventName": "UNC_I_SNOOP_RESP.MISS",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Snoop Responses; SnpCode",
        "EventCode": "0x17",
        "EventName": "UNC_I_SNOOP_RESP.SNPCODE",
        "PerPkg": "1",
        "UMask": "0x10",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Snoop Responses; SnpData",
        "EventCode": "0x17",
        "EventName": "UNC_I_SNOOP_RESP.SNPDATA",
        "PerPkg": "1",
        "UMask": "0x20",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Snoop Responses; SnpInv",
        "EventCode": "0x17",
        "EventName": "UNC_I_SNOOP_RESP.SNPINV",
        "PerPkg": "1",
        "UMask": "0x40",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Inbound Transaction Count; Atomic",
        "EventCode": "0x16",
        "EventName": "UNC_I_TRANSACTIONS.ATOMIC",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of Inbound transactions from the IRP to the Uncore.  This can be filtered based on request type in addition to the source queue.  Note the special filtering equation.  We do OR-reduction on the request type.  If the SOURCE bit is set, then we also do AND qualification based on the source portID.; Tracks the number of atomic transactions",
        "UMask": "0x10",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Inbound Transaction Count; Other",
        "EventCode": "0x16",
        "EventName": "UNC_I_TRANSACTIONS.OTHER",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of Inbound transactions from the IRP to the Uncore.  This can be filtered based on request type in addition to the source queue.  Note the special filtering equation.  We do OR-reduction on the request type.  If the SOURCE bit is set, then we also do AND qualification based on the source portID.; Tracks the number of 'other' kinds of transactions.",
        "UMask": "0x20",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Inbound Transaction Count; Read Prefetches",
        "EventCode": "0x16",
        "EventName": "UNC_I_TRANSACTIONS.RD_PREF",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of Inbound transactions from the IRP to the Uncore.  This can be filtered based on request type in addition to the source queue.  Note the special filtering equation.  We do OR-reduction on the request type.  If the SOURCE bit is set, then we also do AND qualification based on the source portID.; Tracks the number of read prefetches.",
        "UMask": "0x4",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Inbound Transaction Count; Reads",
        "EventCode": "0x16",
        "EventName": "UNC_I_TRANSACTIONS.READS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of Inbound transactions from the IRP to the Uncore.  This can be filtered based on request type in addition to the source queue.  Note the special filtering equation.  We do OR-reduction on the request type.  If the SOURCE bit is set, then we also do AND qualification based on the source portID.; Tracks only read requests (not including read prefetches).",
        "UMask": "0x1",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Inbound Transaction Count; Writes",
        "EventCode": "0x16",
        "EventName": "UNC_I_TRANSACTIONS.WRITES",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of Inbound transactions from the IRP to the Uncore.  This can be filtered based on request type in addition to the source queue.  Note the special filtering equation.  We do OR-reduction on the request type.  If the SOURCE bit is set, then we also do AND qualification based on the source portID.; Tracks only write requests.  Each write request should have a prefetch, so there is no need to explicitly track these requests.",
        "UMask": "0x2",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Inbound Transaction Count; Write Prefetches",
        "EventCode": "0x16",
        "EventName": "UNC_I_TRANSACTIONS.WR_PREF",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of Inbound transactions from the IRP to the Uncore.  This can be filtered based on request type in addition to the source queue.  Note the special filtering equation.  We do OR-reduction on the request type.  If the SOURCE bit is set, then we also do AND qualification based on the source portID.; Tracks the number of write prefetches.",
        "UMask": "0x8",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "No AD Egress Credit Stalls",
        "EventCode": "0x18",
        "EventName": "UNC_I_TxR_AD_STALL_CREDIT_CYCLES",
        "PerPkg": "1",
        "PublicDescription": "Counts the number times when it is not possible to issue a request to the R2PCIe because there are no AD Egress Credits available.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "No BL Egress Credit Stalls",
        "EventCode": "0x19",
        "EventName": "UNC_I_TxR_BL_STALL_CREDIT_CYCLES",
        "PerPkg": "1",
        "PublicDescription": "Counts the number times when it is not possible to issue data to the R2PCIe because there are no BL Egress Credits available.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Outbound Read Requests",
        "EventCode": "0xE",
        "EventName": "UNC_I_TxR_DATA_INSERTS_NCB",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of requests issued to the switch (towards the devices).",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Outbound Read Requests",
        "EventCode": "0xF",
        "EventName": "UNC_I_TxR_DATA_INSERTS_NCS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of requests issued to the switch (towards the devices).",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Outbound Request Queue Occupancy",
        "EventCode": "0xD",
        "EventName": "UNC_I_TxR_REQUEST_OCCUPANCY",
        "PerPkg": "1",
        "PublicDescription": "Accumultes the number of outstanding outbound requests from the IRP to the switch (towards the devices).  This can be used in conjuection with the allocations event in order to calculate average latency of outbound requests.",
        "Unit": "IRP"
    },
    {
        "BriefDescription": "Number of uclks in domain",
        "EventCode": "0x1",
        "EventName": "UNC_R2_CLOCKTICKS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of uclks in the R2PCIe uclk domain.  This could be slightly different than the count in the Ubox because of enable/freeze delays.  However, because the R2PCIe is close to the Ubox, they generally should not diverge by more than a handful of cycles.",
        "Unit": "R2PCIe"
    },
    {
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.ISOCH_QPI0",
        "PerPkg": "1",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.ISOCH_QPI1",
        "PerPkg": "1",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.PRQ_QPI0",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.PRQ_QPI1",
        "PerPkg": "1",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2PCIe IIO Credit Acquired; DRS",
        "EventCode": "0x33",
        "EventName": "UNC_R2_IIO_CREDITS_ACQUIRED.DRS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of credits that are acquired in the R2PCIe agent for sending transactions into the IIO on either NCB or NCS are in use.  Transactions from the BL ring going into the IIO Agent must first acquire a credit.  These credits are for either the NCB or NCS message classes.  NCB, or non-coherent bypass messages are used to transmit data without coherency (and are common).  NCS is used for reads to PCIe (and should be used sparingly).; Credits to the IIO for the DRS message class.",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2PCIe IIO Credit Acquired; NCB",
        "EventCode": "0x33",
        "EventName": "UNC_R2_IIO_CREDITS_ACQUIRED.NCB",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of credits that are acquired in the R2PCIe agent for sending transactions into the IIO on either NCB or NCS are in use.  Transactions from the BL ring going into the IIO Agent must first acquire a credit.  These credits are for either the NCB or NCS message classes.  NCB, or non-coherent bypass messages are used to transmit data without coherency (and are common).  NCS is used for reads to PCIe (and should be used sparingly).; Credits to the IIO for the NCB message class.",
        "UMask": "0x10",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2PCIe IIO Credit Acquired; NCS",
        "EventCode": "0x33",
        "EventName": "UNC_R2_IIO_CREDITS_ACQUIRED.NCS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of credits that are acquired in the R2PCIe agent for sending transactions into the IIO on either NCB or NCS are in use.  Transactions from the BL ring going into the IIO Agent must first acquire a credit.  These credits are for either the NCB or NCS message classes.  NCB, or non-coherent bypass messages are used to transmit data without coherency (and are common).  NCS is used for reads to PCIe (and should be used sparingly).; Credits to the IIO for the NCS message class.",
        "UMask": "0x20",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2PCIe IIO Credits in Use; DRS",
        "EventCode": "0x32",
        "EventName": "UNC_R2_IIO_CREDITS_USED.DRS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when one or more credits in the R2PCIe agent for sending transactions into the IIO on either NCB or NCS are in use.  Transactions from the BL ring going into the IIO Agent must first acquire a credit.  These credits are for either the NCB or NCS message classes.  NCB, or non-coherent bypass messages are used to transmit data without coherency (and are common).  NCS is used for reads to PCIe (and should be used sparingly).; Credits to the IIO for the DRS message class.",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2PCIe IIO Credits in Use; NCB",
        "EventCode": "0x32",
        "EventName": "UNC_R2_IIO_CREDITS_USED.NCB",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when one or more credits in the R2PCIe agent for sending transactions into the IIO on either NCB or NCS are in use.  Transactions from the BL ring going into the IIO Agent must first acquire a credit.  These credits are for either the NCB or NCS message classes.  NCB, or non-coherent bypass messages are used to transmit data without coherency (and are common).  NCS is used for reads to PCIe (and should be used sparingly).; Credits to the IIO for the NCB message class.",
        "UMask": "0x10",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2PCIe IIO Credits in Use; NCS",
        "EventCode": "0x32",
        "EventName": "UNC_R2_IIO_CREDITS_USED.NCS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when one or more credits in the R2PCIe agent for sending transactions into the IIO on either NCB or NCS are in use.  Transactions from the BL ring going into the IIO Agent must first acquire a credit.  These credits are for either the NCB or NCS message classes.  NCB, or non-coherent bypass messages are used to transmit data without coherency (and are common).  NCS is used for reads to PCIe (and should be used sparingly).; Credits to the IIO for the NCS message class.",
        "UMask": "0x20",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AD Ring in Use; All",
        "EventCode": "0x7",
        "EventName": "UNC_R2_RING_AD_USED.ALL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AD ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0xf",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AD Ring in Use; Counterclockwise",
        "EventCode": "0x7",
        "EventName": "UNC_R2_RING_AD_USED.CCW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AD ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0xc",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AD Ring in Use; Counterclockwise and Even",
        "EventCode": "0x7",
        "EventName": "UNC_R2_RING_AD_USED.CCW_EVEN",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AD ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Counterclockwise and Even ring polarity.",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AD Ring in Use; Counterclockwise and Odd",
        "EventCode": "0x7",
        "EventName": "UNC_R2_RING_AD_USED.CCW_ODD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AD ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Counterclockwise and Odd ring polarity.",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AD Ring in Use; Clockwise",
        "EventCode": "0x7",
        "EventName": "UNC_R2_RING_AD_USED.CW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AD ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0x3",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AD Ring in Use; Clockwise and Even",
        "EventCode": "0x7",
        "EventName": "UNC_R2_RING_AD_USED.CW_EVEN",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AD ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Clockwise and Even ring polarity.",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AD Ring in Use; Clockwise and Odd",
        "EventCode": "0x7",
        "EventName": "UNC_R2_RING_AD_USED.CW_ODD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AD ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Clockwise and Odd ring polarity.",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "AK Ingress Bounced; Dn",
        "EventCode": "0x12",
        "EventName": "UNC_R2_RING_AK_BOUNCES.DN",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of times when a request destined for the AK ingress bounced.",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "AK Ingress Bounced; Up",
        "EventCode": "0x12",
        "EventName": "UNC_R2_RING_AK_BOUNCES.UP",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of times when a request destined for the AK ingress bounced.",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AK Ring in Use; All",
        "EventCode": "0x8",
        "EventName": "UNC_R2_RING_AK_USED.ALL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AK ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0xf",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AK Ring in Use; Counterclockwise",
        "EventCode": "0x8",
        "EventName": "UNC_R2_RING_AK_USED.CCW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AK ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0xc",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AK Ring in Use; Counterclockwise and Even",
        "EventCode": "0x8",
        "EventName": "UNC_R2_RING_AK_USED.CCW_EVEN",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AK ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Counterclockwise and Even ring polarity.",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AK Ring in Use; Counterclockwise and Odd",
        "EventCode": "0x8",
        "EventName": "UNC_R2_RING_AK_USED.CCW_ODD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AK ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Counterclockwise and Odd ring polarity.",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AK Ring in Use; Clockwise",
        "EventCode": "0x8",
        "EventName": "UNC_R2_RING_AK_USED.CW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AK ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0x3",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AK Ring in Use; Clockwise and Even",
        "EventCode": "0x8",
        "EventName": "UNC_R2_RING_AK_USED.CW_EVEN",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AK ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Clockwise and Even ring polarity.",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 AK Ring in Use; Clockwise and Odd",
        "EventCode": "0x8",
        "EventName": "UNC_R2_RING_AK_USED.CW_ODD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the AK ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Clockwise and Odd ring polarity.",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 BL Ring in Use; All",
        "EventCode": "0x9",
        "EventName": "UNC_R2_RING_BL_USED.ALL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the BL ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0xf",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 BL Ring in Use; Counterclockwise",
        "EventCode": "0x9",
        "EventName": "UNC_R2_RING_BL_USED.CCW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the BL ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0xc",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 BL Ring in Use; Counterclockwise and Even",
        "EventCode": "0x9",
        "EventName": "UNC_R2_RING_BL_USED.CCW_EVEN",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the BL ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Counterclockwise and Even ring polarity.",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 BL Ring in Use; Counterclockwise and Odd",
        "EventCode": "0x9",
        "EventName": "UNC_R2_RING_BL_USED.CCW_ODD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the BL ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Counterclockwise and Odd ring polarity.",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 BL Ring in Use; Clockwise",
        "EventCode": "0x9",
        "EventName": "UNC_R2_RING_BL_USED.CW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the BL ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.",
        "UMask": "0x3",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 BL Ring in Use; Clockwise and Even",
        "EventCode": "0x9",
        "EventName": "UNC_R2_RING_BL_USED.CW_EVEN",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the BL ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Clockwise and Even ring polarity.",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 BL Ring in Use; Clockwise and Odd",
        "EventCode": "0x9",
        "EventName": "UNC_R2_RING_BL_USED.CW_ODD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the BL ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sunk, but does not include when packets are being sent from the ring stop.; Filters for the Clockwise and Odd ring polarity.",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 IV Ring in Use; Any",
        "EventCode": "0xA",
        "EventName": "UNC_R2_RING_IV_USED.ANY",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the IV ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sent, but does not include when packets are being sunk into the ring stop.",
        "UMask": "0xf",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 IV Ring in Use; Counterclockwise",
        "EventCode": "0xA",
        "EventName": "UNC_R2_RING_IV_USED.CCW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the IV ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sent, but does not include when packets are being sunk into the ring stop.",
        "UMask": "0xc",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2 IV Ring in Use; Clockwise",
        "EventCode": "0xA",
        "EventName": "UNC_R2_RING_IV_USED.CW",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles that the IV ring is being used at this ring stop.  This includes when packets are passing by and when packets are being sent, but does not include when packets are being sunk into the ring stop.",
        "UMask": "0x3",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Ingress Cycles Not Empty; NCB",
        "EventCode": "0x10",
        "EventName": "UNC_R2_RxR_CYCLES_NE.NCB",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Ingress is not empty.  This tracks one of the three rings that are used by the R2PCIe agent.  This can be used in conjunction with the R2PCIe Ingress Occupancy Accumulator event in order to calculate average queue occupancy.  Multiple ingress buffers can be tracked at a given time using multiple counters.; NCB Ingress Queue",
        "UMask": "0x10",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Ingress Cycles Not Empty; NCS",
        "EventCode": "0x10",
        "EventName": "UNC_R2_RxR_CYCLES_NE.NCS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Ingress is not empty.  This tracks one of the three rings that are used by the R2PCIe agent.  This can be used in conjunction with the R2PCIe Ingress Occupancy Accumulator event in order to calculate average queue occupancy.  Multiple ingress buffers can be tracked at a given time using multiple counters.; NCS Ingress Queue",
        "UMask": "0x20",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Ingress Allocations; NCB",
        "EventCode": "0x11",
        "EventName": "UNC_R2_RxR_INSERTS.NCB",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of allocations into the R2PCIe Ingress.  This tracks one of the three rings that are used by the R2PCIe agent.  This can be used in conjunction with the R2PCIe Ingress Occupancy Accumulator event in order to calculate average queue latency.  Multiple ingress buffers can be tracked at a given time using multiple counters.; NCB Ingress Queue",
        "UMask": "0x10",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Ingress Allocations; NCS",
        "EventCode": "0x11",
        "EventName": "UNC_R2_RxR_INSERTS.NCS",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of allocations into the R2PCIe Ingress.  This tracks one of the three rings that are used by the R2PCIe agent.  This can be used in conjunction with the R2PCIe Ingress Occupancy Accumulator event in order to calculate average queue latency.  Multiple ingress buffers can be tracked at a given time using multiple counters.; NCS Ingress Queue",
        "UMask": "0x20",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Ingress Occupancy Accumulator; DRS",
        "EventCode": "0x13",
        "EventName": "UNC_R2_RxR_OCCUPANCY.DRS",
        "PerPkg": "1",
        "PublicDescription": "Accumulates the occupancy of a given R2PCIe Ingress queue in each cycles.  This tracks one of the three ring Ingress buffers.  This can be used with the R2PCIe Ingress Not Empty event to calculate average occupancy or the R2PCIe Ingress Allocations event in order to calculate average queuing latency.; DRS Ingress Queue",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "SBo0 Credits Acquired; For AD Ring",
        "EventCode": "0x28",
        "EventName": "UNC_R2_SBO0_CREDITS_ACQUIRED.AD",
        "PerPkg": "1",
        "PublicDescription": "Number of Sbo 0 credits acquired in a given cycle, per ring.",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "SBo0 Credits Acquired; For BL Ring",
        "EventCode": "0x28",
        "EventName": "UNC_R2_SBO0_CREDITS_ACQUIRED.BL",
        "PerPkg": "1",
        "PublicDescription": "Number of Sbo 0 credits acquired in a given cycle, per ring.",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "SBo0 Credits Occupancy; For AD Ring",
        "EventCode": "0x2A",
        "EventName": "UNC_R2_SBO0_CREDIT_OCCUPANCY.AD",
        "PerPkg": "1",
        "PublicDescription": "Number of Sbo 0 credits in use in a given cycle, per ring.",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "SBo0 Credits Occupancy; For BL Ring",
        "EventCode": "0x2A",
        "EventName": "UNC_R2_SBO0_CREDIT_OCCUPANCY.BL",
        "PerPkg": "1",
        "PublicDescription": "Number of Sbo 0 credits in use in a given cycle, per ring.",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Stall on No Sbo Credits; For SBo0, AD Ring",
        "EventCode": "0x2C",
        "EventName": "UNC_R2_STALL_NO_SBO_CREDIT.SBO0_AD",
        "PerPkg": "1",
        "PublicDescription": "Number of cycles Egress is stalled waiting for an Sbo credit to become available.  Per Sbo, per Ring.",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Stall on No Sbo Credits; For SBo0, BL Ring",
        "EventCode": "0x2C",
        "EventName": "UNC_R2_STALL_NO_SBO_CREDIT.SBO0_BL",
        "PerPkg": "1",
        "PublicDescription": "Number of cycles Egress is stalled waiting for an Sbo credit to become available.  Per Sbo, per Ring.",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Stall on No Sbo Credits; For SBo1, AD Ring",
        "EventCode": "0x2C",
        "EventName": "UNC_R2_STALL_NO_SBO_CREDIT.SBO1_AD",
        "PerPkg": "1",
        "PublicDescription": "Number of cycles Egress is stalled waiting for an Sbo credit to become available.  Per Sbo, per Ring.",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Stall on No Sbo Credits; For SBo1, BL Ring",
        "EventCode": "0x2C",
        "EventName": "UNC_R2_STALL_NO_SBO_CREDIT.SBO1_BL",
        "PerPkg": "1",
        "PublicDescription": "Number of cycles Egress is stalled waiting for an Sbo credit to become available.  Per Sbo, per Ring.",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress Cycles Full; AD",
        "EventCode": "0x25",
        "EventName": "UNC_R2_TxR_CYCLES_FULL.AD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Egress buffer is full.; AD Egress Queue",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress Cycles Full; AK",
        "EventCode": "0x25",
        "EventName": "UNC_R2_TxR_CYCLES_FULL.AK",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Egress buffer is full.; AK Egress Queue",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress Cycles Full; BL",
        "EventCode": "0x25",
        "EventName": "UNC_R2_TxR_CYCLES_FULL.BL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Egress buffer is full.; BL Egress Queue",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress Cycles Not Empty; AD",
        "EventCode": "0x23",
        "EventName": "UNC_R2_TxR_CYCLES_NE.AD",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Egress is not empty.  This tracks one of the three rings that are used by the R2PCIe agent.  This can be used in conjunction with the R2PCIe Egress Occupancy Accumulator event in order to calculate average queue occupancy.  Only a single Egress queue can be tracked at any given time.  It is not possible to filter based on direction or polarity.; AD Egress Queue",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress Cycles Not Empty; AK",
        "EventCode": "0x23",
        "EventName": "UNC_R2_TxR_CYCLES_NE.AK",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Egress is not empty.  This tracks one of the three rings that are used by the R2PCIe agent.  This can be used in conjunction with the R2PCIe Egress Occupancy Accumulator event in order to calculate average queue occupancy.  Only a single Egress queue can be tracked at any given time.  It is not possible to filter based on direction or polarity.; AK Egress Queue",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress Cycles Not Empty; BL",
        "EventCode": "0x23",
        "EventName": "UNC_R2_TxR_CYCLES_NE.BL",
        "PerPkg": "1",
        "PublicDescription": "Counts the number of cycles when the R2PCIe Egress is not empty.  This tracks one of the three rings that are used by the R2PCIe agent.  This can be used in conjunction with the R2PCIe Egress Occupancy Accumulator event in order to calculate average queue occupancy.  Only a single Egress queue can be tracked at any given time.  It is not possible to filter based on direction or polarity.; BL Egress Queue",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress CCW NACK; AD CCW",
        "EventCode": "0x26",
        "EventName": "UNC_R2_TxR_NACK_CW.DN_AD",
        "PerPkg": "1",
        "PublicDescription": "AD CounterClockwise Egress Queue",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress CCW NACK; AK CCW",
        "EventCode": "0x26",
        "EventName": "UNC_R2_TxR_NACK_CW.DN_AK",
        "PerPkg": "1",
        "PublicDescription": "AK CounterClockwise Egress Queue",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress CCW NACK; BL CCW",
        "EventCode": "0x26",
        "EventName": "UNC_R2_TxR_NACK_CW.DN_BL",
        "PerPkg": "1",
        "PublicDescription": "BL CounterClockwise Egress Queue",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress CCW NACK; AK CCW",
        "EventCode": "0x26",
        "EventName": "UNC_R2_TxR_NACK_CW.UP_AD",
        "PerPkg": "1",
        "PublicDescription": "BL CounterClockwise Egress Queue",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress CCW NACK; BL CW",
        "EventCode": "0x26",
        "EventName": "UNC_R2_TxR_NACK_CW.UP_AK",
        "PerPkg": "1",
        "PublicDescription": "AD Clockwise Egress Queue",
        "UMask": "0x20",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "Egress CCW NACK; BL CCW",
        "EventCode": "0x26",
        "EventName": "UNC_R2_TxR_NACK_CW.UP_BL",
        "PerPkg": "1",
        "PublicDescription": "AD CounterClockwise Egress Queue",
        "UMask": "0x10",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "VLW Received",
        "EventCode": "0x42",
        "EventName": "UNC_U_EVENT_MSG.DOORBELL_RCVD",
        "PerPkg": "1",
        "PublicDescription": "Virtual Logical Wire (legacy) message were received from Uncore.   Specify the thread to filter on using NCUPMONCTRLGLCTR.ThreadID.",
        "UMask": "0x8",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Filter Match",
        "EventCode": "0x41",
        "EventName": "UNC_U_FILTER_MATCH.DISABLE",
        "PerPkg": "1",
        "PublicDescription": "Filter match per thread (w/ or w/o Filter Enable).  Specify the thread to filter on using NCUPMONCTRLGLCTR.ThreadID.",
        "UMask": "0x2",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Filter Match",
        "EventCode": "0x41",
        "EventName": "UNC_U_FILTER_MATCH.ENABLE",
        "PerPkg": "1",
        "PublicDescription": "Filter match per thread (w/ or w/o Filter Enable).  Specify the thread to filter on using NCUPMONCTRLGLCTR.ThreadID.",
        "UMask": "0x1",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Filter Match",
        "EventCode": "0x41",
        "EventName": "UNC_U_FILTER_MATCH.U2C_DISABLE",
        "PerPkg": "1",
        "PublicDescription": "Filter match per thread (w/ or w/o Filter Enable).  Specify the thread to filter on using NCUPMONCTRLGLCTR.ThreadID.",
        "UMask": "0x8",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Filter Match",
        "EventCode": "0x41",
        "EventName": "UNC_U_FILTER_MATCH.U2C_ENABLE",
        "PerPkg": "1",
        "PublicDescription": "Filter match per thread (w/ or w/o Filter Enable).  Specify the thread to filter on using NCUPMONCTRLGLCTR.ThreadID.",
        "UMask": "0x4",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Cycles PHOLD Assert to Ack; Assert to ACK",
        "EventCode": "0x45",
        "EventName": "UNC_U_PHOLD_CYCLES.ASSERT_TO_ACK",
        "PerPkg": "1",
        "PublicDescription": "PHOLD cycles.  Filter from source CoreID.",
        "UMask": "0x1",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "RACU Request",
        "EventCode": "0x46",
        "EventName": "UNC_U_RACU_REQUESTS",
        "PerPkg": "1",
        "PublicDescription": "Number outstanding register requests within message channel tracker",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; Correctable Machine Check",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.CMC",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores",
        "UMask": "0x10",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; Livelock",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.LIVELOCK",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores; Filter by core",
        "UMask": "0x4",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; LTError",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.LTERROR",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores; Filter by core",
        "UMask": "0x8",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; Monitor T0",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.MONITOR_T0",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores; Filter by core",
        "UMask": "0x1",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; Monitor T1",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.MONITOR_T1",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores; Filter by core",
        "UMask": "0x2",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; Other",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.OTHER",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores; PREQ, PSMI, P2U, Thermal, PCUSMI, PMI",
        "UMask": "0x80",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; Trap",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.TRAP",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores",
        "UMask": "0x40",
        "Unit": "UBOX"
    },
    {
        "BriefDescription": "Monitor Sent to T0; Uncorrectable Machine Check",
        "EventCode": "0x43",
        "EventName": "UNC_U_U2C_EVENTS.UMC",
        "PerPkg": "1",
        "PublicDescription": "Events coming from Uncore can be sent to one or all cores",
        "UMask": "0x20",
        "Unit": "UBOX"
    }
]