After doing some research on these forums for 10G NIC - I ended up getting a ConnectX3 card as its recommended as a low-power consumption adapter. As I test it on my system and monitor the power consumption I don't see a 3 watt per port usage out of this card. I'm speculating that this is related to the card not having ASPM enabled in linux debian/proxmox.
Here we see the card on my system, claiming ASPM L0s mode is supported by the card but it is not enabled.
Specifically:
The above trick works for my Solarflare 10GB NIC but doesn't seem to be working for this ConnectX3 card I have and I have the latest firmware. This is a dual NIC card and I am seeing about 10 watt power consumption with nothing connected to the ports.
Does anyone have any advice here?
Here we see the card on my system, claiming ASPM L0s mode is supported by the card but it is not enabled.
Code:
root@pve:~# lspci -vvvnnPPDq -s 03:00.0
0000:00:02.0/03:00.0 Ethernet controller [0200]: Mellanox Technologies MT27500 Family [ConnectX-3] [15b3:1003]
Subsystem: Mellanox Technologies MT27500 Family [ConnectX-3] [15b3:0049]
Physical Slot: 4
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 27
IOMMU group: 60
Region 0: Memory at fb400000 (64-bit, non-prefetchable) [size=1M]
Region 2: Memory at f9800000 (64-bit, prefetchable) [size=8M]
Expansion ROM at fb300000 [disabled] [size=1M]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [48] Vital Product Data
Product Name: CX312A - ConnectX-3 SFP+
Read-only fields:
[PN] Part number: MCX312A-XCBT
[EC] Engineering changes: AD
[SN] Serial number: xxxx
[V0] Vendor specific: PCIe Gen3 x8
[RV] Reserved: checksum good, 0 byte(s) reserved
Read/write fields:
[V1] Vendor specific: N/A
[YA] Asset tag: N/A
[RW] Read-write area: 105 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 253 byte(s) free
[RW] Read-write area: 252 byte(s) free
End
Capabilities: [9c] MSI-X: Enable+ Count=128 Masked-
Vector table: BAR=0 offset=0007c000
PBA: BAR=0 offset=0007d000
Capabilities: [60] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <64ns, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 116.000W
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr- TransPend-
LnkCap: Port #8, Speed 8GT/s, Width x8, ASPM L0s, Exit Latency L0s unlimited
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s (ok), Width x8 (ok)
TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR-
10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
FRS- TPHComp- ExtTPHComp-
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled,
AtomicOpsCtl: ReqEn-
LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
LnkCtl2: Target Link Speed: 8GT/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-
Retimer- 2Retimers- CrosslinkRes: unsupported
Capabilities: [c0] Vendor Specific Information: Len=18 <?>
Capabilities: [100 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [148 v1] Device Serial Number 24-8a-07-03-00-e3-14-b0
Capabilities: [154 v2] 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- AdvNonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
HeaderLog: 00000000 00000000 00000000 00000000
Capabilities: [18c v1] Secondary PCI Express
LnkCtl3: LnkEquIntrruptEn- PerformEqu-
LaneErrStat: 0
Kernel driver in use: mlx4_core
Kernel modules: mlx4_coreYou can force set ASPM onto a PCIe card in linux with some script shared here: en:users:documentation:aspm [Linux Wireless]
The above trick works for my Solarflare 10GB NIC but doesn't seem to be working for this ConnectX3 card I have and I have the latest firmware. This is a dual NIC card and I am seeing about 10 watt power consumption with nothing connected to the ports.
Does anyone have any advice here?
