Hi I'm having some problems getting the X552 SFP+ to link to some link partners using 10G SR optics and 10G 1m passive DAC.
When connecting it to a Zyxel XS1920-12 10G switch the link gets stuck in a loop. The link fails when connected directly to a Mellanox ConnectX-3 En Pro SFP+ PCIe card as well (but doesnt "loop") The same optics and DAC works fine with Mellanox -> XS1920-12 It also works fine if I loop it from port 1 to port 2 on the X552, using the same optics and DAC. Link establishes instantly. So optics/cables should be OK and compatible. There is nothing in the logs on the switch. It usually at least logs link up/down or things like autoneg failures (for 10Gbase-T) The board is a Supermicro X10SDV-TP8F: http://www.supermicro.com/products/motherboard/Xeon/D/X10SDV-TP8F.cfm Linux kernel is 4.7, not using the out of tree drivers. Switch is a Zyxel XS1920-12, Broadcom (Trident II?) based. It runs a pre-release firmware which fixes/workarounds interop issues with the X557 for 10Gbase-T. These Broadcom based switches seems to really have a dislike for the Xeon D network ports ;-) Log (using DAC): > [ 2.056144] ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - > version 4.4.0-k > [ 2.442812] ixgbe: Copyright (c) 1999-2016 Intel Corporation. > [ 3.136439] ixgbe 0000:04:00.0: Multiqueue Enabled: Rx Queue count = 8, Tx > Queue count = 8 > [ 3.267929] ixgbe 0000:04:00.0: MAC: 5, PHY: 13, SFP+: 7, PBA No: > 010000-000 > [ 3.267932] ixgbe 0000:04:00.0: 00:25:90:5d:df:ae > [ 3.412007] ixgbe 0000:04:00.0: Intel(R) 10 Gigabit Network Connection > [ 5.137723] ixgbe 0000:04:00.1: Multiqueue Enabled: Rx Queue count = 8, Tx > Queue count = 8 > [ 5.271669] ixgbe 0000:04:00.1: MAC: 5, PHY: 0, PBA No: 010000-000 > [ 5.273760] ixgbe 0000:04:00.1: 00:25:90:5d:df:af > [ 5.542920] ixgbe 0000:04:00.1: Intel(R) 10 Gigabit Network Connection > [ 5.548713] ixgbe 0000:04:00.0 eno7: renamed from eth0 > [ 5.569821] ixgbe 0000:04:00.1 eno8: renamed from eth1 > [ 56.399123] ixgbe 0000:04:00.0: registered PHC device on eno7 > [ 56.501294] ixgbe 0000:04:00.0 eno7: detected SFP+: 7 > [ 56.501324] ixgbe 0000:04:00.0 eno7: NIC Link is Up 10 Gbps, Flow Control: > None > [ 56.900491] ixgbe 0000:04:00.0 eno7: NIC Link is Down > [ 58.606578] ixgbe 0000:04:00.0 eno7: NIC Link is Up 10 Gbps, Flow Control: > None > [ 58.749432] ixgbe 0000:04:00.0 eno7: NIC Link is Down > [ 59.506591] ixgbe 0000:04:00.0 eno7: NIC Link is Up 10 Gbps, Flow Control: > None > [ 60.598351] ixgbe 0000:04:00.0 eno7: NIC Link is Down > [ 61.713268] ixgbe 0000:04:00.0 eno7: NIC Link is Up 10 Gbps, Flow Control: > None > [ 62.447320] ixgbe 0000:04:00.0 eno7: NIC Link is Down > [ 63.919930] ixgbe 0000:04:00.0 eno7: NIC Link is Up 10 Gbps, Flow Control: > None > [ 64.296325] ixgbe 0000:04:00.0 eno7: NIC Link is Down > [ 66.126623] ixgbe 0000:04:00.0 eno7: NIC Link is Up 10 Gbps, Flow Control: > None > [ 66.226603] ixgbe 0000:04:00.0 eno7: NIC Link is Down > [continues until end of time] > # ethtool -i eno7 > driver: ixgbe > version: 4.4.0-k > firmware-version: 0x800003e3 > expansion-rom-version: > bus-info: 0000:04:00.0 > supports-statistics: yes > supports-test: yes > supports-eeprom-access: yes > supports-register-dump: yes > supports-priv-flags: no ------------------------------------------------------------------------------ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
