/*
 * Copyright (c) 2017 Google Inc. All rights reserved
 * Contributed by Stephane Eranian <eranian@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * This file is part of libpfm, a performance monitoring support library for
 * applications on Linux.
 *
 * PMU: bdx_unc_qpi
 */

static intel_x86_umask_t bdx_unc_q_direct2core[]={
	{ .uname = "FAILURE_CREDITS",
	  .ucode = 0x200,
	  .udesc = "Direct 2 Core Spawning -- Spawn Failure - Egress Credits",
	},
	{ .uname = "FAILURE_CREDITS_MISS",
	  .ucode = 0x2000,
	  .udesc = "Direct 2 Core Spawning -- Spawn Failure - Egress and RBT Miss",
	},
	{ .uname = "FAILURE_CREDITS_RBT",
	  .ucode = 0x800,
	  .udesc = "Direct 2 Core Spawning -- Spawn Failure - Egress and RBT Invalid",
	},
	{ .uname = "FAILURE_CREDITS_RBT_MISS",
	  .ucode = 0x8000,
	  .udesc = "Direct 2 Core Spawning -- Spawn Failure - Egress and RBT Miss, Invalid",
	},
	{ .uname = "FAILURE_MISS",
	  .ucode = 0x1000,
	  .udesc = "Direct 2 Core Spawning -- Spawn Failure - RBT Miss",
	},
	{ .uname = "FAILURE_RBT_HIT",
	  .ucode = 0x400,
	  .udesc = "Direct 2 Core Spawning -- Spawn Failure - RBT Invalid",
	},
	{ .uname = "FAILURE_RBT_MISS",
	  .ucode = 0x4000,
	  .udesc = "Direct 2 Core Spawning -- Spawn Failure - RBT Miss and Invalid",
	},
	{ .uname = "SUCCESS_RBT_HIT",
	  .ucode = 0x100,
	  .udesc = "Direct 2 Core Spawning -- Spawn Success",
	},
};

static intel_x86_umask_t bdx_unc_q_rxl_credits_consumed_vn0[]={
	{ .uname = "DRS",
	  .ucode = 0x100,
	  .udesc = "VN0 Credit Consumed -- DRS",
	},
	{ .uname = "HOM",
	  .ucode = 0x800,
	  .udesc = "VN0 Credit Consumed -- HOM",
	},
	{ .uname = "NCB",
	  .ucode = 0x200,
	  .udesc = "VN0 Credit Consumed -- NCB",
	},
	{ .uname = "NCS",
	  .ucode = 0x400,
	  .udesc = "VN0 Credit Consumed -- NCS",
	},
	{ .uname = "NDR",
	  .ucode = 0x2000,
	  .udesc = "VN0 Credit Consumed -- NDR",
	},
	{ .uname = "SNP",
	  .ucode = 0x1000,
	  .udesc = "VN0 Credit Consumed -- SNP",
	},
};

static intel_x86_umask_t bdx_unc_q_rxl_flits_g1[]={
	{ .uname  = "DRS",
	  .ucode  = 0x1800,
	  .udesc  = "Flits Received - Group 1 -- DRS Flits (both Header and Data)",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname = "DRS_DATA",
	  .ucode = 0x800,
	  .udesc = "Flits Received - Group 1 -- DRS Data Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname = "DRS_NONDATA",
	  .ucode = 0x1000,
	  .udesc = "Flits Received - Group 1 -- DRS Header Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname = "HOM",
	  .ucode = 0x600,
	  .udesc = "Flits Received - Group 1 -- HOM Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname = "HOM_NONREQ",
	  .ucode = 0x400,
	  .udesc = "Flits Received - Group 1 -- HOM Non-Request Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname = "HOM_REQ",
	  .ucode = 0x200,
	  .udesc = "Flits Received - Group 1 -- HOM Request Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname = "SNP",
	  .ucode = 0x100,
	  .udesc = "Flits Received - Group 1 -- SNP Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
};

static intel_x86_umask_t bdx_unc_q_rxl_flits_g2[]={
	{ .uname  = "NCB",
	  .ucode  = 0xc00,
	  .udesc  = "Flits Received - Group 2 -- Non-Coherent Rx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NCB_DATA",
	  .ucode  = 0x400,
	  .udesc  = "Flits Received - Group 2 -- Non-Coherent data Rx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NCB_NONDATA",
	  .ucode  = 0x800,
	  .udesc  = "Flits Received - Group 2 -- Non-Coherent non-data Rx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NCS",
	  .ucode  = 0x1000,
	  .udesc  = "Flits Received - Group 2 -- Non-Coherent standard Rx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NDR_AD",
	  .ucode  = 0x100,
	  .udesc  = "Flits Received - Group 2 -- Non-Data Response Rx Flits - AD",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NDR_AK",
	  .ucode  = 0x200,
	  .udesc  = "Flits Received - Group 2 -- Non-Data Response Rx Flits - AK",
	  .uflags = INTEL_X86_NCOMBO,
	},
};

static intel_x86_umask_t bdx_unc_q_rxl_inserts_drs[]={
	{ .uname = "VN0",
	  .ucode = 0x100,
	  .udesc = "for VN0",
	},
	{ .uname = "VN1",
	  .ucode = 0x200,
	  .udesc = "for VN1",
	},
};

static const intel_x86_umask_t bdx_unc_q_rxl_flits_g0[]={
	{ .uname = "IDLE",
	  .udesc  = "Number of data flits over QPI that do not hold payload. When QPI is not in a power saving state, it continuously transmits flits across the link. When there are no protocol flits to send, it will send IDLE and NULL flits across",
	  .ucode  = 0x200,
	  .uflags = INTEL_X86_NCOMBO,
  },
	{ .uname = "DATA",
	  .udesc  = "Number of data flits over QPI",
	  .ucode  = 0x200,
	  .uflags = INTEL_X86_NCOMBO,
  },
	{ .uname = "NON_DATA",
	  .udesc  = "Number of non-NULL non-data flits over QPI",
	  .ucode  = 0x400,
	  .uflags = INTEL_X86_NCOMBO,
  },
};

static intel_x86_umask_t bdx_unc_q_txl_flits_g0[]={
	{ .uname  = "DATA",
	  .ucode  = 0x200,
	  .udesc  = "Flits Transferred - Group 0 -- Data Tx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NON_DATA",
	  .ucode  = 0x400,
	  .udesc  = "Flits Transferred - Group 0 -- Non-Data protocol Tx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
};

static intel_x86_umask_t bdx_unc_q_txl_flits_g1[]={
	{ .uname  = "DRS",
	  .ucode  = 0x1800,
	  .udesc  = "Flits Transferred - Group 1 -- DRS Flits (both Header and Data)",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "DRS_DATA",
	  .ucode  = 0x800,
	  .udesc  = "Flits Transferred - Group 1 -- DRS Data Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "DRS_NONDATA",
	  .ucode  = 0x1000,
	  .udesc  = "Flits Transferred - Group 1 -- DRS Header Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "HOM",
	  .ucode  = 0x600,
	  .udesc  = "Flits Transferred - Group 1 -- HOM Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "HOM_NONREQ",
	  .ucode  = 0x400,
	  .udesc  = "Flits Transferred - Group 1 -- HOM Non-Request Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "HOM_REQ",
	  .ucode  = 0x200,
	  .udesc  = "Flits Transferred - Group 1 -- HOM Request Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "SNP",
	  .ucode  = 0x100,
	  .udesc  = "Flits Transferred - Group 1 -- SNP Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
};

static intel_x86_umask_t bdx_unc_q_txl_flits_g2[]={
	{ .uname  = "NCB",
	  .ucode  = 0xc00,
	  .udesc  = "Flits Transferred - Group 2 -- Non-Coherent Bypass Tx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NCB_DATA",
	  .ucode  = 0x400,
	  .udesc  = "Flits Transferred - Group 2 -- Non-Coherent data Tx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NCB_NONDATA",
	  .ucode  = 0x800,
	  .udesc  = "Flits Transferred - Group 2 -- Non-Coherent non-data Tx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NCS",
	  .ucode  = 0x1000,
	  .udesc  = "Flits Transferred - Group 2 -- Non-Coherent standard Tx Flits",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NDR_AD",
	  .ucode  = 0x100,
	  .udesc  = "Flits Transferred - Group 2 -- Non-Data Response Tx Flits - AD",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "NDR_AK",
	  .ucode  = 0x200,
	  .udesc  = "Flits Transferred - Group 2 -- Non-Data Response Tx Flits - AK",
	  .uflags = INTEL_X86_NCOMBO,
	},
};

static intel_x86_umask_t bdx_unc_q_txr_bl_drs_credit_acquired[]={
	{ .uname  = "VN0",
	  .ucode  = 0x100,
	  .udesc  = "R3QPI Egress Credit Occupancy - DRS -- for VN0",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "VN1",
	  .ucode  = 0x200,
	  .udesc  = "R3QPI Egress Credit Occupancy - DRS -- for VN1",
	  .uflags = INTEL_X86_NCOMBO,
	},
	{ .uname  = "VN_SHR",
	  .ucode  = 0x400,
	  .udesc  = "R3QPI Egress Credit Occupancy - DRS -- for Shared VN",
	  .uflags = INTEL_X86_NCOMBO,
	},
};

static intel_x86_entry_t intel_bdx_unc_q_pe[]={
  { .name   = "UNC_Q_CLOCKTICKS",
    .code   = 0x14,
    .desc   = "Counts the number of clocks in the QPI LL.  This clock runs at 1/4th the GT/s speed of the QPI link.  For example, a 4GT/s link will have qfclk or 1GHz.  BDX does not support dynamic link speeds, so this frequency is fixexed.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_CTO_COUNT",
    .code   = 0x38 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of CTO (cluster trigger outs) events that were asserted across the two slots.  If both slots trigger in a given cycle, the event will increment by 2.  You can use edge detect to count the number of cases when both events triggered.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_DIRECT2CORE",
    .code   = 0x13,
    .desc   = "Counts the number of DRS packets that we attempted to do direct2core on.  There are 4 mutually exclusive filters.  Filter [0] can be used to get successful spawns, while [1:3] provide the different failure cases.  Note that this does not count packets that are not candidates for Direct2Core.  The only candidates for Direct2Core are DRS packets destined for Cbos.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_direct2core,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_direct2core),
  },
  { .name   = "UNC_Q_L1_POWER_CYCLES",
    .code   = 0x12,
    .desc   = "Number of QPI qfclk cycles spent in L1 power mode.  L1 is a mode that totally shuts down a QPI link.  Use edge detect to count the number of instances when the QPI link entered L1.  Link power states are per link and per direction, so for example the Tx direction could be in one state while Rx was in another. Because L1 totally shuts down the link, it takes a good amount of time to exit this mode.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL0P_POWER_CYCLES",
    .code   = 0x10,
    .desc   = "Number of QPI qfclk cycles spent in L0p power mode.  L0p is a mode where we disable 1/2 of the QPI lanes, decreasing our bandwidth in order to save power.  It increases snoop and data transfer latencies and decreases overall bandwidth.  This mode can be very useful in NUMA optimized workloads that largely only utilize QPI for snoops and their responses.  Use edge detect to count the number of instances when the QPI link entered L0p.  Link power states are per link and per direction, so for example the Tx direction could be in one state while Rx was in another.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL0_POWER_CYCLES",
    .code   = 0xf,
    .desc   = "Number of QPI qfclk cycles spent in L0 power mode in the Link Layer.  L0 is the default mode which provides the highest performance with the most power.  Use edge detect to count the number of instances that the link entered L0.  Link power states are per link and per direction, so for example the Tx direction could be in one state while Rx was in another.  The phy layer  sometimes leaves L0 for training, which will not be captured by this event.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL_BYPASSED",
    .code   = 0x9,
    .desc   = "Counts the number of times that an incoming flit was able to bypass the flit buffer and pass directly across the BGF and into the Egress.  This is a latency optimization, and should generally be the common case.  If this value is less than the number of flits transferred, it implies that there was queueing getting onto the ring, and thus the transactions saw higher latency.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL_CREDITS_CONSUMED_VN0",
    .code   = 0x1e | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of times that an RxQ VN0 credit was consumed (i.e. message uses a VN0 credit for the Rx Buffer).  This includes packets that went through the RxQ and those that were bypasssed.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_credits_consumed_vn0,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_credits_consumed_vn0),
  },
  { .name   = "UNC_Q_RXL_CREDITS_CONSUMED_VN1",
    .code   = 0x39 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of times that an RxQ VN1 credit was consumed (i.e. message uses a VN1 credit for the Rx Buffer).  This includes packets that went through the RxQ and those that were bypasssed.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_credits_consumed_vn0,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_credits_consumed_vn0),
  },
  { .name   = "UNC_Q_RXL_CREDITS_CONSUMED_VNA",
    .code   = 0x1d | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of times that an RxQ VNA credit was consumed (i.e. message uses a VNA credit for the Rx Buffer).  This includes packets that went through the RxQ and those that were bypasssed.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL_CYCLES_NE",
    .code   = 0xa,
    .desc   = "Counts the number of cycles that the QPI RxQ was not empty.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy Accumulator event to calculate the average occupancy.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL_FLITS_G0",
    .code   = 0x1,
    .desc   = "Counts the number of flits received from the QPI Link.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_flits_g0,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_flits_g0),
  },
  { .name   = "UNC_Q_RXL_FLITS_G1",
    .code   = 0x2 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of flits received from the QPI Link.  This is one of three groups that allow us to track flits.  It includes filters for SNP, HOM, and DRS message classes.  Each flit is made up of 80 bits of information (in addition to some ECC data).  In full-width (L0) mode, flits are made up of four fits, each of which contains 20 bits of data (along with some additional ECC data).  In half-width (L0p) mode, the fits are only 10 bits, and therefore it takes twice as many fits to transmit a flit.  When one talks about QPI speed (for example, 8.0 GT/s), the transfers here refer to fits.  Therefore, in L0, the system will transfer 1 flit at the rate of 1/4th the QPI speed.  One can calculate the bandwidth of the link by taking: flits*80b/time.  Note that this is not the same as data bandwidth.  For example, when we are transferring a 64B cacheline across QPI, we will break it into 9 flits -- 1 with header information and 8 with 64 bits of actual data and an additional 16 bits of other information.  To calculate data bandwidth, one should therefore do: data flits * 8B / time.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_flits_g1,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_flits_g1),
  },
  { .name   = "UNC_Q_RXL_FLITS_G2",
    .code   = 0x3 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of flits received from the QPI Link.  This is one of three groups that allow us to track flits.  It includes filters for NDR, NCB, and NCS message classes.  Each flit is made up of 80 bits of information (in addition to some ECC data).  In full-width (L0) mode, flits are made up of four fits, each of which contains 20 bits of data (along with some additional ECC data).  In half-width (L0p) mode, the fits are only 10 bits, and therefore it takes twice as many fits to transmit a flit.  When one talks about QPI speed (for example, 8.0 GT/s), the transfers here refer to fits.  Therefore, in L0, the system will transfer 1 flit at the rate of 1/4th the QPI speed.  One can calculate the bandwidth of the link by taking: flits*80b/time.  Note that this is not the same as data bandwidth.  For example, when we are transferring a 64B cacheline across QPI, we will break it into 9 flits -- 1 with header information and 8 with 64 bits of actual data and an additional 16 bits of other information.  To calculate data bandwidth, one should therefore do: data flits * 8B / time.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_flits_g2,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_flits_g2),
  },
  { .name   = "UNC_Q_RXL_INSERTS",
    .code   = 0x8,
    .desc   = "Number of allocations into the QPI Rx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL_INSERTS_DRS",
    .code   = 0x9 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of allocations into the QPI Rx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.  This monitors only DRS flits.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_INSERTS_HOM",
    .code   = 0xc | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of allocations into the QPI Rx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.  This monitors only HOM flits.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_INSERTS_NCB",
    .code   = 0xa | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of allocations into the QPI Rx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.  This monitors only NCB flits.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_INSERTS_NCS",
    .code   = 0xb | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of allocations into the QPI Rx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.  This monitors only NCS flits.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_INSERTS_NDR",
    .code   = 0xe | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of allocations into the QPI Rx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.  This monitors only NDR flits.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_INSERTS_SNP",
    .code   = 0xd | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of allocations into the QPI Rx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.  This monitors only SNP flits.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_OCCUPANCY",
    .code   = 0xb,
    .desc   = "Accumulates the number of elements in the QPI RxQ in each cycle.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Not Empty event to calculate average occupancy, or with the Flit Buffer Allocations event to track average lifetime.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_RXL_OCCUPANCY_DRS",
    .code   = 0x15 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Accumulates the number of elements in the QPI RxQ in each cycle.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Not Empty event to calculate average occupancy, or with the Flit Buffer Allocations event to track average lifetime.  This monitors DRS flits only.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_OCCUPANCY_HOM",
    .code   = 0x18 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Accumulates the number of elements in the QPI RxQ in each cycle.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Not Empty event to calculate average occupancy, or with the Flit Buffer Allocations event to track average lifetime.  This monitors HOM flits only.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_OCCUPANCY_NCB",
    .code   = 0x16 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Accumulates the number of elements in the QPI RxQ in each cycle.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Not Empty event to calculate average occupancy, or with the Flit Buffer Allocations event to track average lifetime.  This monitors NCB flits only.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_OCCUPANCY_NCS",
    .code   = 0x17 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Accumulates the number of elements in the QPI RxQ in each cycle.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Not Empty event to calculate average occupancy, or with the Flit Buffer Allocations event to track average lifetime.  This monitors NCS flits only.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_OCCUPANCY_NDR",
    .code   = 0x1a | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Accumulates the number of elements in the QPI RxQ in each cycle.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Not Empty event to calculate average occupancy, or with the Flit Buffer Allocations event to track average lifetime.  This monitors NDR flits only.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_RXL_OCCUPANCY_SNP",
    .code   = 0x19 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Accumulates the number of elements in the QPI RxQ in each cycle.  Generally, when data is transmitted across QPI, it will bypass the RxQ and pass directly to the ring interface.  If things back up getting transmitted onto the ring, however, it may need to allocate into this buffer, thus increasing the latency.  This event can be used in conjunction with the Flit Buffer Not Empty event to calculate average occupancy, or with the Flit Buffer Allocations event to track average lifetime.  This monitors SNP flits only.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXL0P_POWER_CYCLES",
    .code   = 0xd,
    .desc   = "Number of QPI qfclk cycles spent in L0p power mode.  L0p is a mode where we disable 1/2 of the QPI lanes, decreasing our bandwidth in order to save power.  It increases snoop and data transfer latencies and decreases overall bandwidth.  This mode can be very useful in NUMA optimized workloads that largely only utilize QPI for snoops and their responses.  Use edge detect to count the number of instances when the QPI link entered L0p.  Link power states are per link and per direction, so for example the Tx direction could be in one state while Rx was in another.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXL0_POWER_CYCLES",
    .code   = 0xc,
    .desc   = "Number of QPI qfclk cycles spent in L0 power mode in the Link Layer.  L0 is the default mode which provides the highest performance with the most power.  Use edge detect to count the number of instances that the link entered L0.  Link power states are per link and per direction, so for example the Tx direction could be in one state while Rx was in another.  The phy layer  sometimes leaves L0 for training, which will not be captured by this event.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXL_BYPASSED",
    .code   = 0x5,
    .desc   = "Counts the number of times that an incoming flit was able to bypass the Tx flit buffer and pass directly out the QPI Link. Generally, when data is transmitted across QPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXL_CYCLES_NE",
    .code   = 0x6,
    .desc   = "Counts the number of cycles when the TxQ is not empty. Generally, when data is transmitted across QPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXL_FLITS_G0",
    .code   = 0x0,
    .desc   = "Counts the number of flits transmitted across the QPI Link.  It includes filters for Idle, protocol, and Data Flits.  Each flit is made up of 80 bits of information (in addition to some ECC data).  In full-width (L0) mode, flits are made up of four fits, each of which contains 20 bits of data (along with some additional ECC data).  In half-width (L0p) mode, the fits are only 10 bits, and therefore it takes twice as many fits to transmit a flit.  When one talks about QPI speed (for example, 8.0 GT/s), the transfers here refer to fits.  Therefore, in L0, the system will transfer 1 flit at the rate of 1/4th the QPI speed.  One can calculate the bandwidth of the link by taking: flits*80b/time.  Note that this is not the same as data bandwidth.  For example, when we are transferring a 64B cacheline across QPI, we will break it into 9 flits -- 1 with header information and 8 with 64 bits of actual data and an additional 16 bits of other information.  To calculate data bandwidth, one should therefore do: data flits * 8B / time (for L0) or 4B instead of 8B for L0p.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_txl_flits_g0,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_txl_flits_g0),
  },
  { .name   = "UNC_Q_TXL_FLITS_G1",
    .code   = 0x0 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of flits transmitted across the QPI Link.  It includes filters for Idle, protocol, and Data Flits.  Each flit is made up of 80 bits of information (in addition to some ECC data).  In full-width (L0) mode, flits are made up of four fits, each of which contains 20 bits of data (along with some additional ECC data).  In half-width (L0p) mode, the fits are only 10 bits, and therefore it takes twice as many fits to transmit a flit.  When one talks about QPI speed (for example, 8.0 GT/s), the transfers here refer to fits.  Therefore, in L0, the system will transfer 1 flit at the rate of 1/4th the QPI speed.  One can calculate the bandwidth of the link by taking: flits*80b/time.  Note that this is not the same as data bandwidth.  For example, when we are transferring a 64B cacheline across QPI, we will break it into 9 flits -- 1 with header information and 8 with 64 bits of actual data and an additional 16 bits of other information.  To calculate data bandwidth, one should therefore do: data flits * 8B / time (for L0) or 4B instead of 8B for L0p.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_txl_flits_g1,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_txl_flits_g1),
  },
  { .name   = "UNC_Q_TXL_FLITS_G2",
    .code   = 0x1 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Counts the number of flits trasmitted across the QPI Link.  This is one of three groups that allow us to track flits.  It includes filters for NDR, NCB, and NCS message classes.  Each flit is made up of 80 bits of information (in addition to some ECC data).  In full-width (L0) mode, flits are made up of four fits, each of which contains 20 bits of data (along with some additional ECC data).  In half-width (L0p) mode, the fits are only 10 bits, and therefore it takes twice as many fits to transmit a flit.  When one talks about QPI speed (for example, 8.0 GT/s), the transfers here refer to fits.  Therefore, in L0, the system will transfer 1 flit at the rate of 1/4th the QPI speed.  One can calculate the bandwidth of the link by taking: flits*80b/time.  Note that this is not the same as data bandwidth.  For example, when we are transferring a 64B cacheline across QPI, we will break it into 9 flits -- 1 with header information and 8 with 64 bits of actual data and an additional 16 bits of other information.  To calculate data bandwidth, one should therefore do: data flits * 8B / time.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_txl_flits_g2,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_txl_flits_g2),
  },
  { .name   = "UNC_Q_TXL_INSERTS",
    .code   = 0x4,
    .desc   = "Number of allocations into the QPI Tx Flit Buffer.  Generally, when data is transmitted across QPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXL_OCCUPANCY",
    .code   = 0x7,
    .desc   = "Accumulates the number of flits in the TxQ.  Generally, when data is transmitted across QPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link. This can be used with the cycles not empty event to track average occupancy, or the allocations event to track average lifetime in the TxQ.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXR_AD_HOM_CREDIT_ACQUIRED",
    .code   = 0x26 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of link layer credits into the R3 (for transactions across the BGF) acquired each cycle. Flow Control FIFO for Home messages on AD.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_AD_HOM_CREDIT_OCCUPANCY",
    .code   = 0x22 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Occupancy event that tracks the number of link layer credits into the R3 (for transactions across the BGF) available in each cycle.  Flow Control FIFO for HOM messages on AD.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_AD_NDR_CREDIT_ACQUIRED",
    .code   = 0x28 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of link layer credits into the R3 (for transactions across the BGF) acquired each cycle.  Flow Control FIFO for NDR messages on AD.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_AD_NDR_CREDIT_OCCUPANCY",
    .code   = 0x24 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Occupancy event that tracks the number of link layer credits into the R3 (for transactions across the BGF) available in each cycle. Flow Control FIFO  for NDR messages on AD.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_AD_SNP_CREDIT_ACQUIRED",
    .code   = 0x27 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of link layer credits into the R3 (for transactions across the BGF) acquired each cycle.  Flow Control FIFO for Snoop messages on AD.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_AD_SNP_CREDIT_OCCUPANCY",
    .code   = 0x23 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Occupancy event that tracks the number of link layer credits into the R3 (for transactions across the BGF) available in each cycle.  Flow Control FIFO fro Snoop messages on AD.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_AK_NDR_CREDIT_ACQUIRED",
    .code   = 0x29 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of credits into the R3 (for transactions across the BGF) acquired each cycle. Local NDR message class to AK Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXR_AK_NDR_CREDIT_OCCUPANCY",
    .code   = 0x25 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Occupancy event that tracks the number of credits into the R3 (for transactions across the BGF) available in each cycle.  Local NDR message class to AK Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_TXR_BL_DRS_CREDIT_ACQUIRED",
    .code   = 0x2a | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of credits into the R3 (for transactions across the BGF) acquired each cycle. DRS message class to BL Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_txr_bl_drs_credit_acquired,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_txr_bl_drs_credit_acquired),
  },
  { .name   = "UNC_Q_TXR_BL_DRS_CREDIT_OCCUPANCY",
    .code   = 0x1f | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Occupancy event that tracks the number of credits into the R3 (for transactions across the BGF) available in each cycle.  DRS message class to BL Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_txr_bl_drs_credit_acquired,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_txr_bl_drs_credit_acquired),
  },
  { .name   = "UNC_Q_TXR_BL_NCB_CREDIT_ACQUIRED",
    .code   = 0x2b | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of credits into the R3 (for transactions across the BGF) acquired each cycle. NCB message class to BL Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_BL_NCB_CREDIT_OCCUPANCY",
    .code   = 0x20 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Occupancy event that tracks the number of credits into the R3 (for transactions across the BGF) available in each cycle.  NCB message class to BL Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_BL_NCS_CREDIT_ACQUIRED",
    .code   = 0x2c | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of credits into the R3 (for transactions across the BGF) acquired each cycle. NCS message class to BL Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_TXR_BL_NCS_CREDIT_OCCUPANCY",
    .code   = 0x21 | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Occupancy event that tracks the number of credits into the R3 (for transactions across the BGF) available in each cycle.  NCS message class to BL Egress.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
    .ngrp   = 1,
    .umasks = bdx_unc_q_rxl_inserts_drs,
    .numasks= LIBPFM_ARRAY_SIZE(bdx_unc_q_rxl_inserts_drs),
  },
  { .name   = "UNC_Q_VNA_CREDIT_RETURNS",
    .code   = 0x1c | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of VNA credits returned.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
  { .name   = "UNC_Q_VNA_CREDIT_RETURN_OCCUPANCY",
    .code   = 0x1b | (1 << 21), /* extra ev_sel_ext bit set */
    .desc   = "Number of VNA credits in the Rx side that are waitng to be returned back across the link.",
    .modmsk = BDX_UNC_QPI_ATTRS,
    .cntmsk = 0xf,
  },
};
