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From: "Ethy H. Brito" <ethy.brito@inexo.com.br>
To: "xdp-newbies@vger.kernel.org" <xdp-newbies@vger.kernel.org>
Subject: Newbie questions
Date: Fri, 18 Jun 2021 13:31:06 -0300	[thread overview]
Message-ID: <20210618133106.01f2129b@babalu> (raw)


Hi All.

I've been doing some home work reading the docs and some doubts have raised.
For reference, my environment is 
	Ubuntu 20.04
	kernel 5.4.0-66 
	tc utility, iproute2-ss200127.

1) https://xdp-project.net/areas/cpumap.html#cpumap--Create-script-MQ-HTB-silo-setup says that: 
	"XPS (Transmit Packet Steering) will take precedence over any changes to 
	skb->queue_mapping. You need to disable *XDP* via mask=00 in files 
	/sys/class/net/DEV/queues/tx-*/xps_cpus"

Shouldn't it say I need to disable *XPS* (not XDP) using mask=00??

2) Taking tc_mq_htb_setup_example.sh as reference, how to enable XDP?
Since I have to disable XPS, I assume I have to enable something in replacement, right?
How to set that CPU-0 will deal with mq queue 7FFF:1, CPU-1 will deal with 7FFF:2, and so on?

3) Is XDP available in kernel 5.4.0 ?

4) Is XPS a suitable "substitute" for XDP ?

Thank you for your time.

Regards Ethy

             reply	other threads:[~2021-06-18 16:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-18 16:31 Ethy H. Brito [this message]
2021-06-18 17:40 ` Newbie questions Jesper Dangaard Brouer
2021-06-18 20:37   ` Ethy H. Brito
2021-06-22  1:28     ` Ethy H. Brito
2021-06-22  9:18       ` Jesper Dangaard Brouer

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