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From: Jun Gan <geminijun@gmail.com>
To: users@dpdk.org
Subject: [dpdk-users] Same 5 tuple UDP packets have been delivered to different queues.
Date: Sun, 6 Oct 2019 20:12:33 -0700	[thread overview]
Message-ID: <CABzhwkPpHGHXw_O52xKei3Gt4m37yv4=-Os+aW6QaEOQJqP4rw@mail.gmail.com> (raw)

Hi All,

I just added multiple queues and enabled RSS in our application, I set
"rss_hf" to "ETH_RSS_IP | ETH_RSS_UDP", but I can see that same 5 tuple
packets, will be delivered to different queues. Do I miss something?

Here is the code:

eth_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
eth_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP
eth_conf..rx_adv_conf.rss_conf.rss_hf &= dev_info.flow_type_rss_offloads;


I actually have two queues, and two different threads(lcore) busy
polling(rx_burst) on these two queues, I also met other weird issues like:

dpdk-stable-18.11.2/drivers/net/mlx5/mlx5_rxtx_vec_sse.h:743: rxq_burst_v:
Assertion `rxq->rq_pi == rxq->cq_ci' failed.

I don't understand what does this means, I think rx_burst on the same nic
different queue should be thread-safe, isn't it?

I'm using dpdk 18.11.2, OS is centos 7.6 and NIC is MLX CX-5.

I really appreciate it if anyone can help!!

Thanks,
Jun Gan


-- 
Jun Gan

             reply	other threads:[~2019-10-07  3:12 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-07  3:12 Jun Gan [this message]
2019-10-08 11:52 ` Asaf Penso
2019-10-09  1:56   ` Jun Gan
2019-10-09  3:12     ` Stephen Hemminger
2019-10-09  4:29       ` Jun Gan
2019-10-10  1:08         ` Stephen Hemminger
2019-10-10  4:04           ` Jun Gan

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