Make trex return used ports

[Dave Houser]

I already know about the "./dpdk_setup_ports.py -L" which returns ports. But this command does not return ports that have been assigned.

Only solution I found to make this work was to reboot the whole server....

How do I get assigned ports back?

[Petr Redkin]

Dave, use ./dpdk_nic_bind.py script

To unbind 0000:01:00.0 from using any driver
        dpdk_nic_bind.py -u 0000:01:00.0

To bind 0000:02:00.0 and 0000:02:00.1 to the ixgbe kernel driver
   ./dpdk_nic_bind.py -b ixgbe 0000:02:00.0  0000:02:00.1

пн, 19 апр. 2021 г. в 17:59, Dave Houser <daveh...@gmail.com>:

I already know about the "./dpdk_setup_ports.py -L" which returns ports. But this command does not return ports that have been assigned.

Only solution I found to make this work was to reboot the whole server....

How do I get assigned ports back?

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[Dave Houser]

Thanks Peter,

So I tried that command and it looks like it releases the interface, but how do I return it back to my kernel? 

You can see after I ran the command the interfaces are now under "Other devices"

# ./dpdk_nic_bind.py --status

Network devices using DPDK-compatible driver

============================================

<none>

Network devices using kernel driver

===================================

0000:19:00.0 'I350 Gigabit Network Connection' if=em1 drv=igb unused=igb_uio

0000:19:00.1 'I350 Gigabit Network Connection' if=em2 drv=igb unused=igb_uio

0000:19:00.2 'I350 Gigabit Network Connection' if=em3 drv=igb unused=igb_uio

0000:19:00.3 'I350 Gigabit Network Connection' if=em4 drv=igb unused=igb_uio *Active*

0000:86:00.0 'Ethernet Controller X710 for 10GbE SFP+' if=p7p1 drv=i40e unused=igb_uio

0000:86:00.1 'Ethernet Controller X710 for 10GbE SFP+' if=p7p2 drv=i40e unused=igb_uio

0000:86:00.2 'Ethernet Controller X710 for 10GbE SFP+' if=p7p3 drv=i40e unused=igb_uio

0000:86:00.3 'Ethernet Controller X710 for 10GbE SFP+' if=p7p4 drv=i40e unused=igb_uio

Other network devices

=====================

0000:5e:00.0 'Ethernet Controller X710 for 10GbE SFP+' unused=i40e,igb_uio

0000:5e:00.1 'Ethernet Controller X710 for 10GbE SFP+' unused=i40e,igb_uio

0000:5e:00.2 'Ethernet Controller X710 for 10GbE SFP+' unused=i40e,igb_uio

0000:5e:00.3 'Ethernet Controller X710 for 10GbE SFP+' unused=i40e,igb_uio

But my kernel does not see the interfaces at all, how do I return them back to kernel control?

# ip -br addr show

lo               UNKNOWN        127.0.0.1/8 ::1/128

em1              DOWN

em2              DOWN

em3              DOWN

em4              UP             10.104.8.63/22 fe80::aca9:4724:d7a7:97c6/64

p7p1             DOWN

p7p2             DOWN

p7p3             UP             192.168.168.10/24 fe80::faf2:1eff:febd:1092/64

p7p4             UP             192.168.168.11/24 fe80::faf2:1eff:febd:1093/64