[elrepo] Support for older Mellanox network cards in RHEL 8.

[Jeremy Reben]

0d:00.0 Ethernet controller [0200]: Mellanox Technologies MT26448 [ConnectX
EN 10GigE, PCIe 2.0 5GT/s] [15b3:6750] (rev b0)

0d:00.0 Ethernet controller: Mellanox Technologies MT26448 [ConnectX EN
10GigE, PCIe 2.0 5GT/s] (rev b0)
        Subsystem: Mellanox Technologies Device 0021
        Physical Slot: 3
        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 11
        NUMA node: 0
        Region 0: Memory at c7c00000 (64-bit, non-prefetchable) [size=1M]
        Region 2: Memory at c5800000 (64-bit, prefetchable) [size=8M]
        Expansion ROM at c7b00000 [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: HP ConnectX-2 SFP+
                Read-only fields:
                        [PN] Part number: 666172-001
                        [EC] Engineering changes: A1
                        [SN] Serial number: IL214805EG
                        [V0] Vendor specific: PCIe Gen2 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: 102 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 256 bytes, PhantFunc 0, Latency L0s
<64ns, 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 512 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
                LnkCap: Port #8, Speed 5GT/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 5GT/s, Width x8, TrErr- Train- SlotClk-
DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-,
OBFF Not Supported
                         AtomicOpsCap: 32bit- 64bit- 128bitCAS-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-,
LTR-, OBFF Disabled
                         AtomicOpsCtl: ReqEn-
                LnkCtl2: Target Link Speed: 5GT/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: [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 00-02-c9-03-00-52-b9-12

On Wed, Apr 15, 2020 at 4:00 PM Akemi Yagi <amyagi at gmail.com> wrote:

> On Wed, Apr 15, 2020 at 12:48 AM Jeremy Reben <jeremy.reben at gmail.com>
> wrote:
> >
> > I have an ancient MT26448 that worked in Fedora 28 and I would assume in
> CentOS 7.
> > I had found a help ticket for ConnectX2 devices that it only required
> compiling the kmod with CONFIG_MLX4_CORE_GEN2 to enable support and was
> hoping it would be something similar for my card; that I believe to be of
> the first generation.
> > The relevant trouble ticket can be found at
> https://bugs.centos.org/view.php?id=16726
> > I hate to see perfectly good hardware become trash due to "progression".
>
> Hi Jeremy,
>
> It wouldl help if you can show us your device IDs [xxxx:yyyy] as
> reported by 'lspci -nn'.
>
> Akemi
> _______________________________________________
> elrepo mailing list
> elrepo at lists.elrepo.org
> http://lists.elrepo.org/mailman/listinfo/elrepo
>
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