qdisc all delete

[leeseungbin]

can I delete all existing qdisc settings without knowing the interface index and knowing which interfaces exist?

[svinota]

There is no RTNL operation to delete all qdiscs, thus no such mapping in IPRoute.tc(). Thus only walking through interfaces, getting qdiscs and removing them one by one.

I can schedule this feature as one call tc('flush') with optional index to flush qdiscs on all or a specific interface.

[leeseungbin]

There is no RTNL operation to delete all qdiscs, thus no such mapping in IPRoute.tc(). Thus only walking through interfaces, getting qdiscs and removing them one by one.

I can schedule this feature as one call tc('flush') with optional index to flush qdiscs on all or a specific interface.

thank you!
It was decided to do it with the one by one deletion method.

I have one question
qdisc information is below.
Can I set the limit of pfifo when creating qdisc using the tc function?
i think this code -> tc('add', 'pfifo', self.ip_route.link_lookup(ifname=target_key)[0], parent='1:1', limit=700)
but limit was not set.
Is this because sched_pfifo_fast.py only has band and priomap field?

(venv) root@futurue4:/usr/lib/python3.8/site-packages/pyroute2# tc qdisc show dev enp0s18
qdisc prio 1: root refcnt 2 bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
qdisc htb 2: parent 1:2 r2q 10 default 0x10 direct_packets_stat 0 direct_qlen 1000
qdisc pfifo 8003: parent 1:1 limit 1000p
qdisc htb 30: parent 2:30 r2q 10 default 0x10 direct_packets_stat 0 direct_qlen 1000
qdisc htb 10: parent 2:10 r2q 10 default 0x10 direct_packets_stat 0 direct_qlen 1000
qdisc htb 20: parent 2:20 r2q 10 default 0x10 direct_packets_stat 0 direct_qlen 1000

[svinota]

That's 'cause [p|b]fifo parameters setup is not implemented in the library. I schedule this feature as well.

First I have to finish changing the package layout and fix issues caused by this change, and then these two features (flush & fifo) will be in 0.6.2

[leeseungbin]

That's 'cause [p|b]fifo parameters setup is not implemented in the library. I schedule this feature as well.

First I have to finish changing the package layout and fix issues caused by this change, and then these two features (flush & fifo) will be in 0.6.2
The current pyroute2 is also great, but I'm looking forward to more in the future.
It helped me a lot and I am very grateful.
If you ever come to Korea, please contact me. I will buy you a cold beer.

[svinota]

pfifo support with limit added:

ipr.tc('add',
       kind='pfifo',
       index=ipr.link_lookup(ifname='test0'),
       limit=700)

The feature requires more work as it still raises warnings etc, but it works on the master

If you ever come to Korea, please contact me

Sure :) It's a bit tough to travel nowadays, but I would love to get there one day.

[svinota]

ipr.tc() extended:

• ipr.tc('del') — remove all root qdiscs except the one on lo
• ipr.tc('del', index=[2,3,4]) — remove root qdiscs on all interfaces in the list

[svinota]

Closing as resolved. Feel free to reopen the ticket if you see more issues with the feature.