[
    {
        "BriefDescription": "Number of uclks in domain",
        "Counter": "0,1,2,3",
        "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"
    },
    {
        "BriefDescription": "UNC_R2_IIO_CREDIT.ISOCH_QPI0",
        "Counter": "0,1",
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.ISOCH_QPI0",
        "PerPkg": "1",
        "UMask": "0x4",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "UNC_R2_IIO_CREDIT.ISOCH_QPI1",
        "Counter": "0,1",
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.ISOCH_QPI1",
        "PerPkg": "1",
        "UMask": "0x8",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "UNC_R2_IIO_CREDIT.PRQ_QPI0",
        "Counter": "0,1",
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.PRQ_QPI0",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "UNC_R2_IIO_CREDIT.PRQ_QPI1",
        "Counter": "0,1",
        "EventCode": "0x2D",
        "EventName": "UNC_R2_IIO_CREDIT.PRQ_QPI1",
        "PerPkg": "1",
        "UMask": "0x2",
        "Unit": "R2PCIe"
    },
    {
        "BriefDescription": "R2PCIe IIO Credit Acquired; DRS",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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; Counterclockwise",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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; Counterclockwise",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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; Counterclockwise",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1,2,3",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "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",
        "Counter": "0,1",
        "EventCode": "0x26",
        "EventName": "UNC_R2_TxR_NACK_CW.UP_BL",
        "PerPkg": "1",
        "PublicDescription": "AD CounterClockwise Egress Queue",
        "UMask": "0x10",
        "Unit": "R2PCIe"
    }
]