The hints should be:
# ethtool -m eth10
Cannot get module EEPROM information: Invalid argument # dmesg | tail -n 1 [  
445.971974] i40e 0000:3d:00.3 eth10: Module EEPROM memory read not supported. 
Please update the NVM image.

# ethtool -i eth10
driver: i40e
version: 2.9.21
firmware-version: 3.31 0x80000d31 1.1767.0

And the working case:
# ethtool -i eth8
driver: i40e
version: 2.9.21
firmware-version: 6.01 0x800035cf 1.1876.0

If you don't see it, 6.01 > 3.31.

The NVM update tool should be available on downloadcenter.intel.com

Todd Fujinaka
Software Application Engineer
Datacenter Engineering Group
Intel Corporation
todd.fujin...@intel.com


-----Original Message-----
From: Jakub Jankowski [mailto:sha...@toxcorp.com] 
Sent: Tuesday, August 27, 2019 4:03 AM
To: e1000-devel@lists.sourceforge.net
Cc: net...@vger.kernel.org; sha...@toxcorp.com; mhems...@open-systems.com
Subject: [E1000-devel] SFP+ EEPROM readouts fail on X722 (ethtool -m: Invalid 
argument)

Hi,

We can't get SFP+ EEPROM readouts for X722 to work at all:

# ethtool -m eth10
Cannot get module EEPROM information: Invalid argument # dmesg | tail -n 1 [  
445.971974] i40e 0000:3d:00.3 eth10: Module EEPROM memory read not supported. 
Please update the NVM image.
# lspci | grep 3d:00.3
3d:00.3 Ethernet controller: Intel Corporation Ethernet Connection X722 for 
10GbE SFP+ (rev 09)


We're running 4.19.65 kernel at the moment, testing using the newest 
out-of-tree Intel module

# modinfo -F version i40e
2.9.21

We also tried:
- 4.19.65 with in-tree i40e (2.3.2-k)
- stock Arch Linux (kernel 5.2.5, driver 2.8.20-k) and the results are the 
same, as shown above.

# ethtool -i eth10
driver: i40e
version: 2.9.21
firmware-version: 3.31 0x80000d31 1.1767.0
expansion-rom-version:
bus-info: 0000:3d:00.3
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
# dmidecode -s baseboard-manufacturer
Intel Corporation
# dmidecode -s baseboard-product-name
S2600WFT
# dmidecode -s baseboard-version
H48104-853

# lspci -vvv
(...)
3d:00.3 Ethernet controller: Intel Corporation Ethernet Connection X722 for 
10GbE SFP+ (rev 09)
        DeviceName: Intel PCH Integrated 10 Gigabit Ethernet Controller
        Subsystem: Intel Corporation Ethernet Connection X722 for 10GbE SFP+
        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 112
        NUMA node: 0
        Region 0: Memory at ab000000 (64-bit, prefetchable) [size=16M]
        Region 3: Memory at b0000000 (64-bit, prefetchable) [size=32K]
        Expansion ROM at <ignored> [disabled]
        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=1 PME-
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
                Address: 0000000000000000  Data: 0000
                Masking: 00000000  Pending: 00000000
        Capabilities: [70] MSI-X: Enable+ Count=129 Masked-
                Vector table: BAR=3 offset=00000000
                PBA: BAR=3 offset=00001000
        Capabilities: [a0] Express (v2) Endpoint, MSI 00
                DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, 
L1 <64us
                        ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ 
SlotPowerLimit 0.000W
                DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+
                        RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop- FLReset-
                        MaxPayload 256 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ 
TransPend-
                LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit 
Latency L0s <64ns, L1 <1us
                        ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s (ok), Width x1 (ok)
                        TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR-, OBFF 
Not Supported
                         AtomicOpsCap: 32bit- 64bit- 128bitCAS-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, 
OBFF Disabled
                         AtomicOpsCtl: ReqEn-
                LnkSta2: Current De-emphasis Level: -6dB, 
EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-, 
LinkEqualizationRequest-
        Capabilities: [e0] Vital Product Data
                Product Name: Example VPD
                Read-only fields:
                        [V0] Vendor specific:
                        [RV] Reserved: checksum good, 0 byte(s) reserved
                End
        Capabilities: [100 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: [150 v1] Alternative Routing-ID Interpretation (ARI)
                ARICap: MFVC- ACS-, Next Function: 0
                ARICtl: MFVC- ACS-, Function Group: 0
        Capabilities: [160 v1] Single Root I/O Virtualization (SR-IOV)
                IOVCap: Migration-, Interrupt Message Number: 000
                IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy-
                IOVSta: Migration-
                Initial VFs: 32, Total VFs: 32, Number of VFs: 0, Function 
Dependency Link: 03
                VF offset: 109, stride: 1, Device ID: 37cd
                Supported Page Size: 00000553, System Page Size: 00000001
                Region 0: Memory at 00000000af000000 (64-bit, prefetchable)
                Region 3: Memory at 00000000b0020000 (64-bit, prefetchable)
                VF Migration: offset: 00000000, BIR: 0
        Capabilities: [1a0 v1] Transaction Processing Hints
                Device specific mode supported
                No steering table available
        Capabilities: [1b0 v1] Access Control Services
                ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- 
EgressCtrl- DirectTrans-
                ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- 
EgressCtrl- DirectTrans-
        Kernel driver in use: i40e
        Kernel modules: i40e


Same kernel+i40e, same SFP+ module - but on Intel X710, works like a treat:

# lspci | grep X7
81:00.0 Ethernet controller: Intel Corporation Ethernet Controller X710 for 
10GbE SFP+ (rev 01)
81:00.1 Ethernet controller: Intel Corporation Ethernet Controller X710 for 
10GbE SFP+ (rev 01) # ethtool -m eth8
        Identifier                                : 0x03 (SFP)
        Extended identifier                       : 0x04 (GBIC/SFP defined by 
2-wire interface ID)
        Connector                                 : 0x07 (LC)
        Transceiver codes                         : 0x10 0x00 0x00 0x01 0x00 
0x00 0x00 0x00 0x00
        Transceiver type                          : 10G Ethernet: 10G Base-SR
        Transceiver type                          : Ethernet: 1000BASE-SX
        Encoding                                  : 0x06 (64B/66B)
        BR, Nominal                               : 10300MBd
         (...)
# ethtool -i eth8
driver: i40e
version: 2.9.21
firmware-version: 6.01 0x800035cf 1.1876.0
expansion-rom-version:
bus-info: 0000:81:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
#


Is this a known problem?


Best regards,
  Jakub



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