雙 PCIe 10-Gigabit 卡上只有一個連結

背景

• 執行 Ubuntu 16.04 的伺服器
• Dell X520（基於 Intel 的 82599）通過 PCIe 連接
• ixgbe驅動程序從這里安裝並在啟動時出現

問題

該卡被驅動程序辨識 - 但只有一個連結正在設置，即介面eth1工作正常（並且發送和接收流量，bla bla）但eth0不是。

有任何想法嗎？

致力於它

ip連結

# ip link
6: enp4s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
   link/ether 00:1b:21:66:a3:e0 brd ff:ff:ff:ff:ff:ff
7: enp4s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
   link/ether 00:1b:21:66:a3:e1 brd ff:ff:ff:ff:ff:ff

dmesg

# dmesg | grep -ie ixgbe
[    3.619850] ixgbe: module verification failed: signature and/or required key missing - tainting kernel
[    3.716062] ixgbe: 0000:04:00.0: ixgbe_check_options: FCoE Offload feature enabled
[    4.133037] ixgbe 0000:04:00.0: PCI Express bandwidth of 32GT/s available
[    4.133059] ixgbe 0000:04:00.0: (Speed:5.0GT/s, Width: x8, Encoding Loss:20%)
[    4.133573] ixgbe 0000:04:00.0 eth0: MAC: 2, PHY: 19, SFP+: 9, PBA No: G18786-001
[    4.133586] ixgbe 0000:04:00.0: 00:1b:21:66:a3:e0
[    4.133602] ixgbe 0000:04:00.0 eth0: Enabled Features: RxQ: 16 TxQ: 16 FdirHash
[    4.235706] ixgbe 0000:04:00.0 eth0: Intel(R) 10 Gigabit Network Connection
[    4.267633] ixgbe: 0000:04:00.1: ixgbe_check_options: FCoE Offload feature enabled
[    4.485259] ixgbe 0000:04:00.1: PCI Express bandwidth of 32GT/s available
[    4.498568] ixgbe 0000:04:00.1: (Speed:5.0GT/s, Width: x8, Encoding Loss:20%)
[    4.512331] ixgbe 0000:04:00.1 eth1: MAC: 2, PHY: 19, SFP+: 10, PBA No: G18786-001
[    4.525753] ixgbe 0000:04:00.1: 00:1b:21:66:a3:e1
[    4.538963] ixgbe 0000:04:00.1 eth1: Enabled Features: RxQ: 16 TxQ: 16 FdirHash
[    4.552185] ixgbe 0000:04:00.1 eth1: Intel(R) 10 Gigabit Network Connection
[    4.565850] ixgbe 0000:04:00.1 enp4s0f1: renamed from eth1
[    4.587784] ixgbe 0000:04:00.0 enp4s0f0: renamed from eth0
[    9.730465] ixgbe 0000:04:00.0: registered PHC device on enp4s0f0
[    9.904203] ixgbe 0000:04:00.0 enp4s0f0: detected SFP+: 9
[    9.927080] ixgbe 0000:04:00.1: registered PHC device on enp4s0f1
[   10.093085] ixgbe 0000:04:00.1 enp4s0f1: detected SFP+: 10
[   12.664418] ixgbe 0000:04:00.1 enp4s0f1: NIC Link is Up 1 Gbps, Flow Control: None

lshw

# lshw | grep -ie 82599
      *-network:0
           description: Ethernet interface
           product: 82599ES 10-Gigabit SFI/SFP+ Network Connection
           vendor: Intel Corporation
           physical id: 0
           bus info: pci@0000:04:00.0
           logical name: enp4s0f0
           version: 01
           serial: 00:1b:21:66:a3:e0
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=ixgbe driverversion=5.3.4 firmware=0x546d0001, 16.5.20 latency=0 link=no multicast=yes port=twisted pair
           resources: irq:52 memory:91c80000-91cfffff ioport:2020(size=32) memory:91f04000-91f07fff memory:92180000-921fffff memory:91f08000-92007fff memory:92008000-92107fff
      *-network:1
           description: Ethernet interface
           product: 82599ES 10-Gigabit SFI/SFP+ Network Connection
           vendor: Intel Corporation
           physical id: 0.1
           bus info: pci@0000:04:00.1
           logical name: enp4s0f1
           version: 01
           serial: 00:1b:21:66:a3:e1
           size: 1Gbit/s
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi msix pciexpress vpd bus_master cap_list ethernet physical tp 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=ixgbe driverversion=5.3.4 duplex=full firmware=0x546d0001, 16.5.20 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
           resources: irq:70 memory:91c00000-91c7ffff ioport:2000(size=32) memory:91d00000-91d03fff memory:91d04000-91e03fff memory:91e04000-91f03fff

該卡不支持我使用的特定 SFP。

換一個不同的就行了。

引用自：https://serverfault.com/questions/891752