+Mellanox NIC
+------------
+
+Performance test results using Mellanox ConnectX5 2p100GE are reported for
+2-Node Xeon Cascade Lake physical testbed type present in FD.io labs. For
+description of physical testbeds used please refer to
+:ref:`tested_physical_topologies`.
+
+Mellanox NIC settings
+~~~~~~~~~~~~~~~~~~~~~
+
+Mellanox ConnectX5 NIC settings are following recommendations from
+[DpdkPerformanceReport]_, [MellanoxDpdkGuide]_ and [MellanoxDpdkBits]_.
+Specifically:
+
+- Flow Control OFF:
+ ::
+
+ $ ethtool -A $netdev rx off tx off
+
+- Change PCI MaxReadReq to 1024B for each port of each NIC:
+ ::
+
+ $ setpci -s $PORT_PCI_ADDRESS 68.w=3BCD
+
+- Set CQE COMPRESSION to "AGGRESSIVE":
+ ::
+
+ $ mlxconfig -d $PORT_PCI_ADDRESS set CQE_COMPRESSION=1
+
+Mellanox :abbr:`OFED (OpenFabrics Enterprise Distribution)` driver of version
+4.6-1.0.1.1 is installed and used to manage the NIC settings.
+
+::
+
+ $ sudo ethtool -i enp94s0f0
+ driver: mlx5_core
+ version: 4.6-1.0.1
+ firmware-version: 16.25.1020 (MT_0000000009)
+ expansion-rom-version:
+ bus-info: 0000:5e:00.0
+ supports-statistics: yes
+ supports-test: yes
+ supports-eeprom-access: no
+ supports-register-dump: no
+ supports-priv-flags: yes
+
+::
+
+ $ sudo lspci -vvvs 5e:00.0
+ 5e:00.0 Ethernet controller: Mellanox Technologies MT28800 Family [ConnectX-5 Ex]
+ Subsystem: Mellanox Technologies MT28800 Family [ConnectX-5 Ex]
+ Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
+ Latency: 0, Cache Line Size: 32 bytes
+ Interrupt: pin A routed to IRQ 37
+ NUMA node: 0
+ Region 0: Memory at 38fffe000000 (64-bit, prefetchable) [size=32M]
+ Expansion ROM at c5e00000 [disabled] [size=1M]
+ Capabilities: [60] Express (v2) Endpoint, MSI 00
+ DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
+ ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal+ Unsupported-
+ RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset-
+ MaxPayload 256 bytes, MaxReadReq 4096 bytes
+ DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
+ LnkCap: Port #0, Speed 16GT/s, Width x16, ASPM not supported, Exit Latency L0s unlimited, L1 unlimited
+ ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
+ LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
+ DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported
+ DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
+ LnkCtl2: Target Link Speed: 16GT/s, EnterCompliance- SpeedDis-
+ Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
+ Compliance De-emphasis: -6dB
+ LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+, EqualizationPhase1+
+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest-
+ Capabilities: [48] Vital Product Data
+ Product Name: CX556A - ConnectX-5 QSFP28
+ Read-only fields:
+ [PN] Part number: MCX556A-EDAT
+ [EC] Engineering changes: AA
+ [V2] Vendor specific: MCX556A-EDAT
+ [SN] Serial number: MT1945X00360
+ [V3] Vendor specific: f8d15ef7e701ea118000b8599ffe4aa8
+ [VA] Vendor specific: MLX:MODL=CX556A:MN=MLNX:CSKU=V2:UUID=V3:PCI=V0
+ [V0] Vendor specific: PCIeGen4 x16
+ [RV] Reserved: checksum good, 2 byte(s) reserved
+ End
+ Capabilities: [9c] MSI-X: Enable+ Count=64 Masked-
+ Vector table: BAR=0 offset=00002000
+ PBA: BAR=0 offset=00003000
+ Capabilities: [c0] Vendor Specific Information: Len=18 <?>
+ Capabilities: [40] Power Management version 3
+ Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold+)
+ Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
+ Capabilities: [100 v1] Advanced Error Reporting
+ UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
+ UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
+ UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
+ CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
+ AERCap: First Error Pointer: 04, GenCap+ CGenEn- ChkCap+ ChkEn-
+ Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
+ ARICap: MFVC- ACS-, Next Function: 1
+ ARICtl: MFVC- ACS-, Function Group: 0
+ Capabilities: [1c0 v1] #19
+ Capabilities: [230 v1] Access Control Services
+ ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
+ ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
+ Capabilities: [320 v1] #27
+ Capabilities: [370 v1] #26
+ Capabilities: [420 v1] #25
+ Kernel driver in use: mlx5_core
+ Kernel modules: mlx5_core
+
+TG and SUT settings
+~~~~~~~~~~~~~~~~~~~
+
+For the TG and SUT environment settings please refer to
+:ref:`_vpp_test_environment` and :ref:`_dpdk_test_environment`.
+
+Links
+~~~~~
+
+.. [DpdkPerformanceReport] `DPDK 19.11 performance report <http://static.dpdk.org/doc/perf/DPDK_19_11_Mellanox_NIC_performance_report.pdf>`
+.. [MellanoxDpdkGuide] `Mellanox DPDK guide <https://www.mellanox.com/related-docs/prod_software/MLNX_DPDK_Quick_Start_Guide_v16.11_3.0.pdf>`
+.. [MellanoxDpdkBits] `Mellanox DPDK bits <https://community.mellanox.com/s/article/mellanox-dpdk>`
Code Review / csit.git / blobdiff