ConnectX-2 on Ubuntu 18.04
Hello- I have a number of older servers with ConnectX-2 VPI IB cards running a very old OS (Ubuntu 10.04). We want to take them to Ubuntu 18.04 instead. As I understand it, Mellanox is only providing...
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NetworkDirect API: Loading of "NDv2 Provider for Mellanox WinOF-2" requires...
Hello everybody, I have an issue in my NetworkDirect RDMA application when loading the Mellanox NDv2 provider. It seems as the newer WinOF-2 driver for MLX-5 IB adapters (mlx5nd.dll) requires that the...
View ArticleTagged Ethernet interface (VLAN PFC) fails to activate on Ubuntu 16.04
Environment:Ubuntu 16.04, Kernel 4.15.0-29-generic MLNX_OFED_LINUX-4.3-1.0.1.0:MCX416A-CCAT Configured PFC with VLAN 100 and Priority 3. While trying to enable the interface, I get:root@sm16:~# nmcli...
View ArticleRe: mlx5: ethtool -m not working
Hi Ryan, I am getting the same end result with RHEL 7.5, Kernel 4.9, ethtool version 4.8 for Connectx-4 & Connectx-3.I am however able to retrieve the information on a Connectx-5. You can...
View ArticleRe: Soft-RoCE on mininet topology
Hi Suraj,Thank you for posting your question on the Mellanox Community.Based on your information provided (We also noticed your posting on...
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Re: Header Data Split
Hi Kenneth,Thank you for posting your question on the Mellanox Community.We have noticed that you also opened a Mellanox Support case regarding this issue and that we provided you access to the PRM's...
View ArticleRe: Can't ibping Lid or GUID but can ping by ip
Is there any error messages? Does ibtracert work (#ibtracert <src lid> <dst lid>?
View ArticleRe: Can't ibping Lid or GUID but can ping by ip
Hi Brian,When using virtualization, GRH (global routing header) must be present in the packet. For ibping, --dgid <GID> parameter need to be used (see man ibping).To get GIDs, on the server run...
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Re: ASAP2 Live Migration & H/W LAG
Could you tell me the detail for your application ? why you need such feature ?
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SN2100 QSFP (40Gbps) needs to be connected to Cisco Catalyst 3850 SFP 1Gbps...
Hello.We have a plan to connect Cisco Catalyst 3850 switch's 1Gbps SFP port to Mellanox SN2100-BB2F QSFP port.For this connection, we are going to connect them using NAM1Q00A-QSA and MC3208011-SX(...
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Add iPXE support for Connectx-3-Pro MT27520
Hi, I use connect-3-pro cards on hp machines to boot via ipxe but getting attached errors. Apparently, the iPXE does not support connect-3-pro cards. just wondering is there any chance to add ipxe...
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Re: How can I add a timestamp in Roce?
If using HPC-X or OpenMPI from the Mellanox OFED, you might add '-mca btl self -mca pml ucx'
View ArticleLet me know which os is stable for SB7800
Hello Recently delivered sb7800 to our customers. The customer requested that the SB7800 OS be installed with the most stable version of OS and wants to be recommended by the vendor. Please advise me...
View ArticleHow to enable the MT4103(connectx-3 pro) physical port
It is found that when configuring the adapter as RoCEv2 by “options mlx4_core roce_mode=0000:81:00.0-1,0000:84:00.0-1”, after OS rebooting, one MT4103 can not work well. But there is nothing wrong for...
View Articletesting beegfs with rdma using connectx-3 pro
I have used vdbench and fio to test for RDMA connections and TCP connections. But the weird is ,RDMA performence is worse than TCP.Hardware and Software Used:two machines with no switch and the cards...
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Up to $200 off! sfpcables lower cost shop for datacenter
SFPcables.com is an official store of 10Gtek company. It offers one-stop Datacenter solution and products, including compatible Transceivers, DAC cables, AOC cables, Fiber Optical, Patch-cord,...
View ArticleRe: How to configure host chaining for ConnectX-5 VPI
Just some due diligence here.We put our ConnectX5 cards in our 3 host vmware 6.5 stack, and did not get it to work with host_chaining. We ended up contacting support about it, and the reply we got...
View ArticleRe: How to configure host chaining for ConnectX-5 VPI
You're welcome!I'm glad I helped someone after all the headache I went through for it. I have no hard experience with VMWare, and so take all of this with a grain of salt. First thought is vlan tags. I...
View ArticleHow can I enable "packet pacing" on connectX-5 ?
How can I enable "packet pacing" on the connectX-5 ? With the command ibv_devinfo -v I get Packet_pacing_caps: qp_rate_limits_max: 0kbps I expect here the wire rate of the card.Thanks Patrick
View ArticleRe: Can't ibping Lid or GUID but can ping by ip
Thank you for responding quickly. I am able to ibping to the gid on first dev but not on the second one: SERVER:-----------------------# show_gids DEV PORT INDEX GID...
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