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Re: Connect-X4 in an PCI-E 8X

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Mellanox fw useg on the top of Connectx-4 EDR 100G adapter's have been qualified and supporting PCIe3.0 x16 so it's a prerequisite

using other then X16 PCI-E, may cause card malfunction (crash, poot bandwidth etc...)


Where to find TILE-Gx user manual and driver/firmware?

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Hi Admin,

 

Some customers are interested in SSL/IPSec acceleration in TILE-Gx product line.

Where to find TILE-Gx user manual and driver/firmware to download?

Any advantages against other acceleration vendors (i.e.: Intel IQA89501G1P5 )?

 

Thanks a lot.

 

BR / Wei

dpdk: infiniband/mlx5_hw.h: No such file or directory

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I'm using 'MT27710 Family [ConnectX-4 Lx]' on DPDK-16.11, CentOS 7.2, configured 'CONFIG_RTE_LIBRTE_MLX5_PMD=y' installed libibverbs-devel-1.2.1-1.el7.x86_64and libmlx5-1.2.1-8.el7.x86_64 but  "make install T=x86_64-native-linuxapp-gcc" produces the error:

 

.../dpdk/dpdk-16.11/drivers/net/mlx5/mlx5_rxtx.h:46:32: fatal error: infiniband/mlx5_hw.h: No such file or directory

 

what package I need to install?

"yum provides */infiniband/mlx5_hw.h" found no matches

Re: mlx4 driver stripping inner vlan from double-tagged frame

Re: Which ESXi driver to use for SRP/iSER over IB (not Eth!)?

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OK, 4 moths later, ESXi 6.5 released, and still no reply from Mellanox. As expected, previously working workarounds (uninstalling inbox drivers and installing 1.8.x.x) for SRP/iSER over IPoIB no longer work. I even attempted using 1.9.10.5 ETH drivers with my Connect-X3s and employing iSER, but, still, this didn't work either. Which means I have to stick to ESXi 6.0, possibly, until I decide to EoL my Mellanox hardware altogether.

 

Mellanox: what's your response to all this? Will there ever be a solution for RDMA storage for VMware, or you just decided it's not worth the effort?

Re: Which ESXi driver to use for SRP/iSER over IB (not Eth!)?

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ZFS on Linux seems to be very stable for me.

Bear in mind that with LIO you will be able to use SRP only with CentOS inbox drivers. If you choose to install Mellanox OFED, you will have access only to iSER over LIO. The only way to have SRP with Mellanox OFED is using SCST.

I actually conducted some tests comparing VMware storage performance of SRP over LIO/Inbox, iSER over LIO/Inbox, iSER over LIO/OFED, SRP over SCST/OFED and iSER over SCST/OFED. In all tests SCST/OFED performed consistently better than ILO, with SRP over SCST/OFED being the best latency-wise and iSER over SCST/OFED bandwidth-wise.

Re: Which ESXi driver to use for SRP/iSER over IB (not Eth!)?

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At the moment I use SRP target provided by SCST over the latest Mellanox OFED distro (3.4.1) on CentOS 7.2. The storage I expose is ZFS on Linux (some SSD, some magnetic).

Re: How to couple Connectx with FPGA?

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Hi Vladimir,

 

thanks for your answer.

I've studied the product description of Innova Flex before opening the discussion. But Innova Flex does not support our concept since it is mainly constructed for packet manipulation/inspection. That means, data received via IB/Ethernet can be analysed and actions depending on packet content can be conducted.

In our concept, the FPGA controls external devices and accumulates device traffic into 40 Gbit/s traffic stream to be transferred via IB. Innova Flex is missing such functionality and FPGA input/output ports open for external devices. Direct coupling of FPGA data stream with IB is not possible.

 

But, once more, thanks for your reply!

 

Best regards

 

Michael


Re: dpdk: infiniband/mlx5_hw.h: No such file or directory

how to password reset in voltaire 4036 ?

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i have voltaire 4036 but i don't have password. Default passwords from admin, guest, root don't work. I can boot in u-boot menu but i don't know what should I do. Please help (((

Re: How to make libvma working in chroot?

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Hi Alexander,

 

Running in chroot may be tricky. Are you able to validate your Ip connectivity using regular perftest tool (ib_read_XXX, other tests)?

 

Sophie.

MCX313A-BCCT/MCX415A-BCAT SETUP

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Hello all,

 

I'm new with Mellanox and I'm trying to connect a QSFP 40G AOC cables between 2 window servers 2012 R2 with MCX313A-BCCT and MCX415A-BCAT on each side. I've tried to upgrade to the newest firmware/software and they're still not connecting.  Does Mellanox has any soft of management software or tool that i can check to see if my cable is present in the ports of each servers?  Thank you in advance!

 

HN

Re: Which ESXi driver to use for SRP/iSER over IB (not Eth!)?

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Hi!

ESXi 6.5 include RDMA support, but there is several bugs.

ESXi hypervisor embedded RDMA support that coworks VMware and Mellanox, but there are many advance will be required.

 

I think almost 2~3 years later they will support iSER and vRDMA properly.

Therefore ConnectX3,4,5,6 will be deprecated then new generation HCA will support it.

Mellanox always said that their product support everything, but only Linux support.

 

Jaehoon Choi

Re: how to password reset in voltaire 4036 ?

Multiple MTU in routed vlans

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I'm running a pair of SX1024s as the core switch on my network.

There is a storage server capable of MTU 9000 and a few clients capable of the same MTU size, but I also have clients that are not Capable of large MTUs. I was thinking of creating a large MTU VLAN to connect the storage and large MTU capable clients and another normal MTU VLAN and routing between the VLANs to enable access to the sotrage for non large-MTU capable clients .
Is this solution going to work, what are the potential pitfalls I need to be aware of ?

 

 

 

Thanks


Re: Where to find TILE-Gx user manual and driver/firmware?

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Hi Wei,

try in MyMellanox website.

 

Ophir.

Re: Multiple MTU in routed vlans

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Hi,

There is a DF (don't fragment) flag on the IP header that allow of forbid packet fragments.

your problem is when running 9K packets from the Storage to some of the 1500 MTU servers.

If the packets reaches the switch with the DF bit on (means don't fragment) it will be dropped, otherwise, the switch will fragment the packet, and it should reassembeled on the NIC.

 

What is your application?

 

See also:IPv4 - Wikipedia

 

Thanks,

Ophir.

Re: mlx4 driver stripping inner vlan from double-tagged frame

Re: Not getting connection between 4036E switch and MT26428 adapter

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Hello Will

 

Do you have a subnet Manager running on the switch or the host? There needs to be at least one SM in the fabric to bring links active.

 

-Steve

Re: Not getting connection between 4036E switch and MT26428 adapter

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Thanks, Steve, for your reply. Yes, the SM is running on the Voltaire

switch.

 

In further testing, I downed the connected server, swapped the IB card with

another one, and voila - the link came up! So, bad card. I just don't know

how I could have figured that out. In any case, problem resolved.

 

Will

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