Re: CentOS 7 KVM-SR-IOV Performance?
Even w/ maximum speed (cpufreq/scaling_governor: performance), I'm getting similar result: ib_write_bw performance (VM->host) is bad.
View ArticlePerformance degrades when place ibv_poll_cq and ibv_post_srq_recv in two...
Hi, I implemented a program having two threads: with one polling the cq, and the other one monitoring the event: IBV_EVENT_SRQ_LIMIT_REACHED, to post receives to the srq. The program works fine when I...
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Are there any applications using RDS over InfiniBand?
(1) RDS could be run over TCP on GE NIC or InfiniBand HCA, how to using it with these different underlying hardware based on MLNX_OFED?(2) For an application written with the traditional sockets, how...
View ArticleIs it possible to update the firmware on a Voltaire ISR9024D externally...
Hi all! I recently bought on ebay the switch mentioned in the title, and it works just SDR instead of DDR. Searching here suggested that it may be a firmware issue, therefore i checked the version of...
View ArticleRe: Mellanox Drivers Needs Contract?
Hi, Mellanox provides a build of OFED tested and certified in house including extra tools and features. Other then this option, you can obtain the stack from the OpenFabrics project of use the OS...
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Re: Is it possible to update the firmware on a Voltaire ISR9024D externally...
Try with flint or mstflint it is part of the mst package.
View ArticleHow to switch ConnectX-3 from IB to ether mode on Windows Server
Hello, I would like to use ConnectX-3 in Ether mode on Windows Server.How can I configure HCAs to use Ether, not IPoIB.Do I need customized firmware or specific driver? [HCA]ConnectX3...
View ArticleRe: it's normal speed?
Hi Sophie,1. OS - linux gentoo, i have 'ofed" in the repository (sys-infiniband/ofed-3.12_rc1:3.12 USE="dapl diags ibacm mstflint opensm perftest qperf -rds -srp" OFED_DRIVERS="mlx4 -cxgb3 -cxgb4...
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Read port priority counters is 0 .
Hi. I had a problem port priority 3 counters is not. Reference is https://community.mellanox.com/docs/DOC-1414 What should we check Thank you in advance! pc1 - Switch - pc2 Switch firmware...
View ArticleRe: determine value of conflicts and fabric simulate
Hi Serge. 1,2,3 - The short answer would be: while designing the topology you need to be sure to select the correct routing-algorithm. If selected correctly, it will prevent credit-loops and...
View ArticleRe: SMB Direct
Right now I have the servers connected back to back. The servers have pci gen 3x8. I followed these directions...
View ArticleRe: it's normal speed?
Hello Roman, Mellanox recommends using their OFED and supported OS together, which they have tested to get optimal performance.Also, the below guide is available to tune your system for peak...
View ArticleRe: How to switch ConnectX-3 from IB to ether mode on Windows Server
I resolved the issue. The MFT manual is wrong. "SETTINGS_PORT1" is wrong."LINK_TYPE_P1" is the correct parameter name. Also the value "3" (Auto) doesn't work in Windows, always recognized as IB and no...
View ArticleRe: Mellanox ConnectX-3 SR-IOV problem
Hey, Kyle, I am terribly sorry about the late reply. After posting my original question and waiting for month, I wasn't able to resolve it. So I had to pause the work and disassemble my test bed. I...
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Re: SMB Direct
Hi,it should be better,make sure that RDMA is running. Try to follow this post, and send your feedback. HowTo Configure RoCE in Windows Environment
View ArticleWhat is the latest (last?) firmware for MTS3600Q-1BNC and how do I start the sm?
I recently acquired a 3600Q-1BNC. I'd like to upgrade it to the latest firmware. It isn't really clear from the download page which is the correct firmware, though I suspect it is:...
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Re: determine value of conflicts and fabric simulate
Thanks, Boris Im anwer you an email.
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Re: Mellanox ConnectX-3 SR-IOV problem
Dear Kyle, how did you get the KVM guest to start at all? mine failed complaining that iommu group issue root@vm-ha:~# virsh start kvm-node0error: Failed to start domain kvm-node0error: internal error:...
View ArticleRe: Connect-X adapter fails to receive invalid IPv6 frame
If the packed doesn't pass a validation HCA is dropping it.
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