Re: [dpdk-dev] Questions about rte_eth_dev multiple rx queue selection (~/dpdk/lib/librte_ether).

[최익성 <pnk003@naver.com>]

 Dear Choi, Sy Jong.
 
Thank you very much for your advice and answer.
 
I will read and check it.
 
Sincerely Yours,
 
Ick-Sung Choi.
 
-----Original Message-----
From: "Choi, Sy Jong"<sy.jong.choi@intel.com> 
To: "최익성"<pnk003@naver.com>; "dev@dpdk.org"<dev@dpdk.org>; 
Cc: 
Sent: 2015-11-18 (수) 15:43:11
Subject: RE: [dpdk-dev] Questions about rte_eth_dev multiple rx queue selection (~/dpdk/lib/librte_ether).
 
Hi Mr. Choi,



Please refer to testpmd, we demonstrate filtering to a selected queue.

There are plenty of functions that allow you to select a queue:-



Exp:-

Add or delete a L2 Ethertype filter, which identify packets by their L2 Ethertype mainly assign

them to a receive queue.

ethertype_filter (port_id) (add|del) (mac_addr|mac_ignr) (mac_address) ethertype

(ether_type) (drop|fwd) queue (queue_id)

The available information parameters are:

• port_id: the port which the Ethertype filter assigned on.

• mac_addr: compare destination mac address.

• mac_ignr: ignore destination mac address match.

• mac_address: destination mac address to match.

• ether_type: the EtherType value want to match, for example 0x0806 for ARP packet.

0x0800 (IPv4) and 0x86DD (IPv6) are invalid.

• queue_id : The receive queue associated with this EtherType filter. It is meaningless

when deleting or dropping.



There are 2tuple,5tuple,syn, flex filters and flow director



Regards,

Choi, Sy Jong

Platform Application Engineer



-----Original Message-----

From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of ???

Sent: Wednesday, November 18, 2015 2:28 PM

To: dev@dpdk.org

Subject: [dpdk-dev] Questions about rte_eth_dev multiple rx queue selection (~/dpdk/lib/librte_ether).



Dear DPDK experts.

 

I really appreciate for your precious answers and advices and thank you for your great contributions.

 

I have questions about rte_eth_dev multiple rx queue usage (~/dpdk/lib/librte_ether).

 

Please let me know, if I am wrong or I have something missed.

 

The applications use rte_eth_dev_configure( port,  n_rx_queues, n_tx_queues, &port_conf) to setup multiple rx queues for a port.

 

How can we select rx queues for the packets from a port?  Is there any rx queue selection function?

 

Is it determined by NIC and is the rx queue information delivered to DPDK?

 

I will appreciate to you if I can be given any answer, advice, and comments.

 

Thank you very much.

 

Sincerely Yours,

 

Ick-Sung Choi.