Re: vSphere 6.0 PFC configuration for Ethernet iSER with Ethernet Driver...
I you have configured mlx4_en.conf file properly as suggested below then you should be able to use pfc properly+++++++++++++++++++++++++++++++/etc/modprobe.d/mlx4_en.conf:options mlx4_en pfctx=0x08...
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Re: vSphere 6.0 PFC configuration for Ethernet iSER with Ethernet Driver...
This environment is VMware ESXi, not a Linux one.mlx4_en parameter must need integer value, not a 0x08!
View ArticleRe: Mellanox eSwitchd issue on Openstack Kilo?
Hi Muneyoshi, Can you provide us the full eswitchd.log? Thanks and regards,~Martijn
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Testing MCX455A bandwidth between Dell servers
I am testing MCX455A bandwidth between Dell servers using the commands:Server: Ib_write-bw –d mlx5_0 –i 1 –a –FandClient: Ib_write-bw –d mlx5_0 –i 1 –a –F <server address>The results looks...
View Articleibv_post_send is slow in ping-pong
I tried to measure how much time it takes for each ibv_post_send (IB_WR_RDMA_WRITE) in the default rping program.I used clock_gettime to measure and the results show that every ibv_post_send function...
View ArticleRe: vSphere 6.0 PFC configuration for Ethernet iSER with Ethernet Driver...
HowTo Run RoCE over L2 Enabled with PFC (ESXi)
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Re: Mellanox eSwitchd issue on Openstack Kilo?
Hi MartijnSorry for being late, here is an eswitchd.log on the compute node.And I think mlnx-agent.log will be helpful so I add...
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Re: Qos options and Vlarb table
Hi all I think I understood in this topicIB QoS is really very different from the analogue to Ethernet.The IB uses two tables and the number of processed entires, which significantly increases the...
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QP Context size
I have read the document saying the ICM (Infinihost Context Memory) is required by the HCA to store Queue Pair (QP) context/Completion Queue (CQ) and Address Translation Table entries.I am wondering...
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Re: QP Context size
Hi, I believe this is what you're looking for in order to learn about QP context characteristics : https://www.mindshare.com/files/ebooks/InfiniBand%20Network%20Architecture.pdf
View ArticleRe: Testing MCX455A bandwidth between Dell servers
Are you sure you used '-a' flag on both client and server?
View ArticleRe: Testing MCX455A bandwidth between Dell servers
Can you please try and put the -a flag as the last flag in the command line on the server? For the client it should be the last flag before the IP of the server.
View ArticleRe: Testing MCX455A bandwidth between Dell servers
Thank you. That fixed it. Can you explain why?
View ArticleSlow 40G->10G Performance when Traffic Flows over MLAG IPL
Hi, I have a pair of SX1410's configured with MLAG. In a situation where a 40G port is trying to send traffic to a 10G port located on the partner switch, the performance is terrible - in this case...
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rdma_create_event_channel: No such device
Software: CentOS 7.2 with their repo provided drivers, libs, and utils.Hardware: ConnectX-2 HCAs. The basic network connections appear good, IPoIBand infiniband-diags utilities do not fail.But when...
View ArticleRe: rdma_create_event_channel: No such device
CentOS does install the kernel drivers by default: mlx4_ib.ko, mlx4_en.ko, mlx4_core.ko.But it does not install the user space lib: libmlx4-rdmav2.so$ yum install libmlx4
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Does ConnectX-3 support header split?
I have an system in which performance critically depends upon the ability for the NIC to separate protocol headers and payload into separate buffers.This is a proprietary protocol on top of Ethernet,...
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Re: 'State: Initializing' but works
sorry, i am too busy to work on that issue.I still cannot solve that issue, but please close that post.
View ArticleDoes MCX3141 only support ubuntu12.04? whether support 14.04 &15.04&15.10 and...
Does MCX3141 only support ubuntu12.04? whether support 14.04 &15.04&15.10 and other new version? more questions: Does MCX3141 support SR-IOV for ROCEv2 in which ubuntu version?
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