1 Reply Latest reply on Mar 21, 2017 7:12 AM by aviap

    SUSE Linux (HANA Server) - Showing Mellanox Card "No Link Detected"


      We have SAP HANA Database installed on Lenovo Servers, with Mellanox 10G Cards. We want to upgrade current 1G copper link to 10G mellanox. We got Fiber ran to ports on servers, but server is showing "No Link Detected". Mellanox drivers are showing loaded. Could someone please advise why it's showing like that? and if we can fix it?


      eth102 is mellanox, and connected to 10G switch port via Fiber:

      uswix340# ethtool eth102

      Settings for eth102:

              Supported ports: [ TP ]

              Supported link modes:   10000baseT/Full

              Supports auto-negotiation: No

              Advertised link modes:  10000baseT/Full

              Advertised pause frame use: No

              Advertised auto-negotiation: No

              Speed: Unknown!

              Duplex: Unknown! (255)

              Port: Twisted Pair

              PHYAD: 0

              Transceiver: internal

              Auto-negotiation: off

              MDI-X: Unknown

              Supports Wake-on: d

              Wake-on: d

              Current message level: 0x00000014 (20)

                                     link ifdown

              Link detected: no

      uswix340# ifplugstatus

      lo: link beat detected

      usb0: link beat detected

      eth4: link beat detected

      eth5: unplugged

      usb1: link beat detected

      eth6: unplugged

      eth7: link beat detected

      eth8: unplugged

      eth9: unplugged

      eth10: unplugged

      eth11: link beat detected

      eth100: unplugged

      eth101: unplugged

      eth102: unplugged

      eth103: unplugged

      bond2: link beat detected



      uswix340# lspci | grep Mellanox

      31:00.0 Ethernet controller: Mellanox Technologies MT27500 Family [ConnectX-3]

      a1:00.0 Ethernet controller: Mellanox Technologies MT27500 Family [ConnectX-3]



      uswix340# /sbin/connectx_port_config -s
      Port configuration for PCI device: 0000:31:00.0 is:
      Port configuration for PCI device: 0000:a1:00.0 is:
      auto (eth)
      auto (eth)
      uswix340# mst status
      MST modules:
          MST PCI module loaded
          MST PCI configuration module loaded

      MST devices:
      /dev/mst/mt4099_pciconf0         - PCI configuration cycles access.
                                         domain:bus:dev.fn=0000:31:00.0 addr.reg=88 data.reg=92
                                         Chip revision is: 01
      /dev/mst/mt4099_pciconf1         - PCI configuration cycles access.
                                         domain:bus:dev.fn=0000:a1:00.0 addr.reg=88 data.reg=92
                                         Chip revision is: 01
      /dev/mst/mt4099_pci_cr0          - PCI direct access.
                                         domain:bus:dev.fn=0000:31:00.0 bar=0xdf700000 size=0x100000
                                         Chip revision is: 01
      /dev/mst/mt4099_pci_cr1          - PCI direct access.
                                         domain:bus:dev.fn=0000:a1:00.0 bar=0xf2700000 size=0x100000
                                         Chip revision is: 01


      137: PCI a100.0: 0200 Ethernet controller
        [Created at pci.323]
        UDI: /org/freedesktop/Hal/devices/pci_15b3_1003_0
        Unique ID: nYg+.mx8SyyVVYd6
        Parent ID: vcUh.B6xqWRvtaZ0
        SysFS ID: /devices/pci0000:a0/0000:a0:02.0/0000:a1:00.0
        SysFS BusID: 0000:a1:00.0
        Hardware Class: network
        Model: "Mellanox MT27500 Family [ConnectX-3]"
        Vendor: pci 0x15b3 "Mellanox Technologies"
        Device: pci 0x1003 "MT27500 Family [ConnectX-3]"
        SubVendor: pci 0x15b3 "Mellanox Technologies"
        SubDevice: pci 0x0077
        Driver: "mlx4_core"
        Driver Modules: "mlx4_core"
        Device File: eth102
        Memory Range: 0xf2700000-0xf27fffff (rw,non-prefetchable)
        Memory Range: 0xf3800000-0xf3ffffff (ro,non-prefetchable)
        IRQ: 272 (no events)
        HW Address: 7c:fe:90:1a:b2:40
        Link detected: no
        Module Alias: "pci:v000015B3d00001003sv000015B3sd00000077bc02sc00i00"
        Driver Info #0:
          Driver Status: mlx4_core is active
          Driver Activation Cmd: "modprobe mlx4_core"
        Config Status: cfg=no, avail=yes, need=no, active=unknown
        Attached to: #122 (PCI bridge)

        • Re: SUSE Linux (HANA Server) - Showing Mellanox Card "No Link Detected"

          Is the OS & NICs on the top of the proper mlnx_ofed driver & fw? what is the link-configuration? is it back-to-back connection or NICs plugged into a switch?

          if to switch - check in the switch if the link-port is on the proper system profile (eth or VPI-single-switch

          try to enforce eth on both PCI device ports: 0000:a1:00.0  (# /sbin/connectx_port_config -d 0000:a1:00.0 --conf eth,eth)

          next, #flint -d /dev/mst/mt4099_pci_cr0 q to reveal the adapter's PSID and then check in Mellanox website if cables are compatible with the adapter

          seems to be a floppy connection to be fixed