Comments (7)
hhaim
commented on June 1, 2024
Yes, see v2.24 release notes(I need to update the documentation)
https://trex-tgn.cisco.com/trex/doc/release_notes.html
Try to add this to CLI too
…--mlx4-so
Keep in mind that we don't have CX3 in our lab so we didn't verified it! We would be happy if you can help
Hanoh
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On 27 Jun 2017, at 16:01, shelbyt <[email protected]<mailto:[email protected]>> wrote:
Hi,
I'm using a Mellanox ConnectX-3 device which provides two ports but expose a single PCI bus address. I tried playing with the config file it seems I need to provide interfaces as a multiple of 2.
Is there any way to make this work with trex?
Thank You
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shelbyt
commented on June 1, 2024
Great thanks. I will try that
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hhaim
commented on June 1, 2024
For some reason all new DPDK development in on CX4/5
Hanoh
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On 27 Jun 2017, at 17:18, shelbyt <[email protected]<mailto:[email protected]>> wrote:
Great thanks. I will try that
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shelbyt
commented on June 1, 2024
Hi Hanoh,
There are a few issues using a CX3 that I've found.
- Since the CX3 exposes two ports(em0,em1) per PCI, using ifconfig to find and set MTU fail.
out=subprocess.check_output(['ifconfig', dev_id])results in:# ifconfig em0, em1which is an invalid command. You can find those lines below:
-
In the same file it looks like
dpdk_setup_port.pyonly loads the mlx5 driver which is for the Connect-IB series of devices, not for the ConnectX series (See page 14: http://www.mellanox.com/related-docs/prod_software/Mellanox_OFED_Linux_User_Manual_v2.3-1.0.1.pdf). -
Tried to hardcorde all of these and forced loading the mlx4_core driver in the script instead of mlx5 but in the end I got an error coming from: https://github.com/cisco-system-traffic-generator/trex-core/blob/master/src/main_dpdk.cpp#L6116.
When set_driver() is invoked, rte_eth_dev_count() returns 0 and results in a crash "Could not find interfaces" -
You mentioned adding --mlx4-so to the CLI but that option does not exist, only --mlx5_so:
https://github.com/cisco-system-traffic-generator/trex-core/blob/master/scripts/t-rex-64#L18
Hope that helps
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hhaim
commented on June 1, 2024
Try adding --mlx4-so explicitly for the last issue
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shelbyt
commented on June 1, 2024
Decided to try other NICs, was unable to test if --mlx4-so would work, sorry.
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hhaim
commented on June 1, 2024
this command works for me
$sudo ./t-rex-64 -i --mlx4-so
anyhow once we will have access to CX3 NICs we would be able to fix the issues you mentioned
(I think MS Azure linux support with CX3 VF is going to be supported soon)
thanks,
Hanoh
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