Hello everyone, I'm using the latest Development VM released in Apri

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See my answer here: <a href="https://forum.p4.org/t/priority-queueing/743" rel="nofoll

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Priority queuing in Simple Switch about p4-learning HOT 4 OPEN

nsg-ethz commented on August 28, 2024

Priority queuing in Simple Switch

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Comments (4)

edgar-costa commented on August 28, 2024 1

Hi @WigginsLi,

I recently added the option.

This p4-learning example already uses it (just check the readme or the topology files):
https://github.com/nsg-ethz/p4-learning/tree/master/examples/multiqueueing

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jafingerhut commented on August 28, 2024

See my answer here: https://forum.p4.org/t/priority-queueing/743

If the p4-learning repo uses source code of the p4lang/behavioral-model repository after the enhancement was made, I would recommend updating the instructions in this repo, since changing the source code and recompiling is no longer necessary.

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edgar-costa commented on August 28, 2024

Hi @jafingerhut!

Thanks for the info. I will have a look at it and update it as soon as possible.

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WigginsLi commented on August 28, 2024

How can i add the -- --priority-queues 8 in p4app.json or somewhere?

i simply modify the /<path to p4-utils>/p4utils/mininetlib/node.py as below and reinstall p4-utils. It works.
Is there a easy way to allow user to add custom options to simple_switch?

def add_arguments(self):
        """Adds arguments to the simple switch process"""
        args = [self.sw_bin]
        for port, intf in list(self.intfs.items()):
            if not intf.IP():
                args.extend(['-i', str(port) + '@' + intf.name])
        if self.pcap_dump:
            if self.pcap_dir:
                args.append('--pcap=' + self.pcap_dir)
            else:
                args.append('--pcap')
        if self.thrift_port:
            args.extend(['--thrift-port', str(self.thrift_port)])
        if self.nanomsg:
            args.extend(['--nanolog', self.nanomsg])
        args.extend(['--device-id', str(self.device_id)])
        if self.json_path:
            args.append(self.json_path)
        else:
            args.append('--no-p4')
        if self.enable_debugger:
            args.append('--debugger')
        if self.log_enabled:
            args.append('--log-console')
/*modify begin*/
        args.extend(['-- --priority-queue', str(8)])
/*end*/
        return args