Hi,
I am running the AF_XDP application in zero copy in a VM(with kernel
5.7.2) . At around 4.2Mpps ( 650 byte packets), the following message
starts appearing in dmesg
[ 1772.647659] mlx5_core 0000:00:06.0: cq_err_event_notifier:492:(pid
0): CQ error on CQN 0x43e, syndrome 0x1
[ 1772.647666] mlx5_core 0000:00:06.0 ens6np0: mlx5e_cq_error_event:
cqn=0x00043e event=0x04
Can you please let me know what does this error mean?. Here are the
system details.
[ubuntu@lmg-vm2 ~]$ uname -a
Linux lmg-vm2.ncse.io 5.7.2-1.el8.elrepo.x86_64 #1 SMP Tue Jun 9
15:21:08 EDT 2020 x86_64 x86_64 x86_64 GNU/Linux
[ubuntu@lmg-vm2 ~]$ ethtool -i ens8np0
driver: mlx5_core
version: 5.0-0
firmware-version: 16.27.2008 (MT_0000000013)
expansion-rom-version:
bus-info: 0000:00:08.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: yes
[ubuntu@lmg-vm2 ~]$ modinfo mlx5_core
filename:
/lib/modules/5.7.2-1.el8.elrepo.x86_64/kernel/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.ko.xz
version: 5.0-0
license: Dual BSD/GPL
description: Mellanox 5th generation network adapters (ConnectX
series) core driver
author: Eli Cohen <eli@xxxxxxxxxxxx>
srcversion: FE61933130A0F0255BCDE1E
alias: pci:v000015B3d0000A2D6sv*sd*bc*sc*i*
alias: pci:v000015B3d0000A2D3sv*sd*bc*sc*i*
alias: pci:v000015B3d0000A2D2sv*sd*bc*sc*i*
alias: pci:v000015B3d00001021sv*sd*bc*sc*i*
alias: pci:v000015B3d0000101Fsv*sd*bc*sc*i*
alias: pci:v000015B3d0000101Esv*sd*bc*sc*i*
alias: pci:v000015B3d0000101Dsv*sd*bc*sc*i*
alias: pci:v000015B3d0000101Csv*sd*bc*sc*i*
alias: pci:v000015B3d0000101Bsv*sd*bc*sc*i*
alias: pci:v000015B3d0000101Asv*sd*bc*sc*i*
alias: pci:v000015B3d00001019sv*sd*bc*sc*i*
alias: pci:v000015B3d00001018sv*sd*bc*sc*i*
alias: pci:v000015B3d00001017sv*sd*bc*sc*i*
alias: pci:v000015B3d00001016sv*sd*bc*sc*i*
alias: pci:v000015B3d00001015sv*sd*bc*sc*i*
alias: pci:v000015B3d00001014sv*sd*bc*sc*i*
alias: pci:v000015B3d00001013sv*sd*bc*sc*i*
alias: pci:v000015B3d00001012sv*sd*bc*sc*i*
alias: pci:v000015B3d00001011sv*sd*bc*sc*i*
depends: nf_flow_table,pci-hyperv-intf,mlxfw,act_ct
retpoline: Y
intree: Y
name: mlx5_core
vermagic: 5.7.2-1.el8.elrepo.x86_64 SMP mod_unload modversions
parm: debug_mask:debug mask: 1 = dump cmd data, 2 = dump cmd
exec time, 3 = both. Default=0 (uint)
parm: prof_sel:profile selector. Valid range 0 - 2 (uint)
On the hypervisor:
root@daytona3:/home/cse# mlxconfig -d /dev/mst/mt4121_pciconf0 q
Device #1:
----------
Device type: ConnectX5
Name: MCX516A-CDA_Ax
Description: ConnectX-5 Ex EN network interface card; 100GbE
dual-port QSFP28; PCIe4.0 x16; tall bracket; ROHS R6
Device: /dev/mst/mt4121_pciconf0
Configurations: Next Boot
MEMIC_BAR_SIZE 0
MEMIC_SIZE_LIMIT _256KB(1)
HOST_CHAINING_MODE DISABLED(0)
HOST_CHAINING_DESCRIPTORS Array[0..7]
HOST_CHAINING_TOTAL_BUFFER_SIZE Array[0..7]
FLEX_PARSER_PROFILE_ENABLE 0
FLEX_IPV4_OVER_VXLAN_PORT 0
ROCE_NEXT_PROTOCOL 254
ESWITCH_HAIRPIN_DESCRIPTORS Array[0..7]
ESWITCH_HAIRPIN_TOT_BUFFER_SIZE Array[0..7]
PF_BAR2_SIZE 0
NON_PREFETCHABLE_PF_BAR False(0)
VF_VPD_ENABLE False(0)
STRICT_VF_MSIX_NUM False(0)
VF_NODNIC_ENABLE False(0)
NUM_OF_VFS 6
PF_BAR2_ENABLE False(0)
SRIOV_EN True(1)
PF_LOG_BAR_SIZE 5
VF_LOG_BAR_SIZE 1
NUM_PF_MSIX 63
NUM_VF_MSIX 11
INT_LOG_MAX_PAYLOAD_SIZE AUTOMATIC(0)
PCIE_CREDIT_TOKEN_TIMEOUT 0
PARTIAL_RESET_EN False(0)
SW_RECOVERY_ON_ERRORS False(0)
RESET_WITH_HOST_ON_ERRORS False(0)
ADVANCED_POWER_SETTINGS False(0)
CQE_COMPRESSION BALANCED(0)
IP_OVER_VXLAN_EN False(0)
MKEY_BY_NAME False(0)
ESWITCH_IPV4_TTL_MODIFY_ENABLE False(0)
PRIO_TAG_REQUIRED_EN False(0)
UCTX_EN False(0)
PCI_ATOMIC_MODE
PCI_ATOMIC_DISABLED_EXT_ATOMIC_ENABLED(0)
TUNNEL_ECN_COPY_DISABLE False(0)
LRO_LOG_TIMEOUT0 6
LRO_LOG_TIMEOUT1 7
LRO_LOG_TIMEOUT2 8
LRO_LOG_TIMEOUT3 13
LOG_DCR_HASH_TABLE_SIZE 11
DCR_LIFO_SIZE 16384
ROCE_CC_PRIO_MASK_P1 255
ROCE_CC_ALGORITHM_P1 ECN(0)
ROCE_CC_PRIO_MASK_P2 255
ROCE_CC_ALGORITHM_P2 ECN(0)
CLAMP_TGT_RATE_AFTER_TIME_INC_P1 True(1)
CLAMP_TGT_RATE_P1 False(0)
RPG_TIME_RESET_P1 300
RPG_BYTE_RESET_P1 32767
RPG_THRESHOLD_P1 1
RPG_MAX_RATE_P1 0
RPG_AI_RATE_P1 5
RPG_HAI_RATE_P1 50
RPG_GD_P1 11
RPG_MIN_DEC_FAC_P1 50
RPG_MIN_RATE_P1 1
RATE_TO_SET_ON_FIRST_CNP_P1 0
DCE_TCP_G_P1 1019
DCE_TCP_RTT_P1 1
RATE_REDUCE_MONITOR_PERIOD_P1 4
INITIAL_ALPHA_VALUE_P1 1023
MIN_TIME_BETWEEN_CNPS_P1 2
CNP_802P_PRIO_P1 6
CNP_DSCP_P1 48
CLAMP_TGT_RATE_AFTER_TIME_INC_P2 True(1)
CLAMP_TGT_RATE_P2 False(0)
RPG_TIME_RESET_P2 300
RPG_BYTE_RESET_P2 32767
RPG_THRESHOLD_P2 1
RPG_MAX_RATE_P2 0
RPG_AI_RATE_P2 5
RPG_HAI_RATE_P2 50
RPG_GD_P2 11
RPG_MIN_DEC_FAC_P2 50
RPG_MIN_RATE_P2 1
RATE_TO_SET_ON_FIRST_CNP_P2 0
DCE_TCP_G_P2 1019
DCE_TCP_RTT_P2 1
RATE_REDUCE_MONITOR_PERIOD_P2 4
INITIAL_ALPHA_VALUE_P2 1023
MIN_TIME_BETWEEN_CNPS_P2 2
CNP_802P_PRIO_P2 6
CNP_DSCP_P2 48
LLDP_NB_DCBX_P1 False(0)
LLDP_NB_RX_MODE_P1 OFF(0)
LLDP_NB_TX_MODE_P1 OFF(0)
LLDP_NB_DCBX_P2 False(0)
LLDP_NB_RX_MODE_P2 OFF(0)
LLDP_NB_TX_MODE_P2 OFF(0)
DCBX_IEEE_P1 True(1)
DCBX_CEE_P1 True(1)
DCBX_WILLING_P1 True(1)
DCBX_IEEE_P2 True(1)
DCBX_CEE_P2 True(1)
DCBX_WILLING_P2 True(1)
KEEP_ETH_LINK_UP_P1 True(1)
KEEP_IB_LINK_UP_P1 False(0)
KEEP_LINK_UP_ON_BOOT_P1 False(0)
KEEP_LINK_UP_ON_STANDBY_P1 False(0)
KEEP_ETH_LINK_UP_P2 True(1)
KEEP_IB_LINK_UP_P2 False(0)
KEEP_LINK_UP_ON_BOOT_P2 False(0)
KEEP_LINK_UP_ON_STANDBY_P2 False(0)
NUM_OF_VL_P1 _4_VLs(3)
NUM_OF_TC_P1 _8_TCs(0)
NUM_OF_PFC_P1 8
NUM_OF_VL_P2 _4_VLs(3)
NUM_OF_TC_P2 _8_TCs(0)
NUM_OF_PFC_P2 8
DUP_MAC_ACTION_P1 LAST_CFG(0)
SRIOV_IB_ROUTING_MODE_P1 LID(1)
IB_ROUTING_MODE_P1 LID(1)
DUP_MAC_ACTION_P2 LAST_CFG(0)
SRIOV_IB_ROUTING_MODE_P2 LID(1)
IB_ROUTING_MODE_P2 LID(1)
PCI_WR_ORDERING per_mkey(0)
MULTI_PORT_VHCA_EN False(0)
PORT_OWNER True(1)
ALLOW_RD_COUNTERS True(1)
RENEG_ON_CHANGE True(1)
TRACER_ENABLE True(1)
IP_VER IPv4(0)
BOOT_UNDI_NETWORK_WAIT 0
UEFI_HII_EN False(0)
BOOT_DBG_LOG False(0)
UEFI_LOGS DISABLED(0)
BOOT_VLAN 1
LEGACY_BOOT_PROTOCOL PXE(1)
BOOT_INTERRUPT_DIS False(0)
BOOT_LACP_DIS True(1)
BOOT_VLAN_EN False(0)
BOOT_PKEY 0
ATS_ENABLED False(0)
DYNAMIC_VF_MSIX_TABLE False(0)
EXP_ROM_UEFI_x86_ENABLE False(0)
EXP_ROM_PXE_ENABLE True(1)
ADVANCED_PCI_SETTINGS False(0)
SAFE_MODE_THRESHOLD 10
SAFE_MODE_ENABLE True(1)
root@daytona3:/home/cse#
Thanks
Saddique
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