Hi Haifeng > -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of lhffjzh > Sent: Saturday, February 28, 2015 9:48 AM > To: 'Thomas Monjalon' > Cc: dev at dpdk.org; maintainers at dpdk.org > Subject: Re: [dpdk-dev] Why only rx queue "0" can receive network packet by > i40e NIC > > Hi Thomas, > > Thanks very much for your reminder, you give me many help in this mail list. > > The issue with detailed information just as below. but I don't know who is the > dpdk i40e maintainers? is maintainers at dpdk.org? > > Hardware list: > 2 i40e 40G NICs > Xeon E5-2670 v2(10 cores) > 32G memory > > I loopback 2 i40e NICs by QSFP cable, one NIC send UDP network packet by > DPDK, and another for receiving. I bind 4 processor's logical cores with 4 rx > queue "0,1,2,3" on receiving NIC, when I start to send packet, only rx queue > "0" > can receive > the UDP packet, the others queue always receive nothing. but it is work well > on > ixgbe 10G NICs, I can receive network packet from all rx queues. does anyone > kindly know why? Could you help to list the DPDK version you are using now? Two possible reasons: 1. UDP rss is not enabled on your board correctly. I40e has different rss flags from ixgbe, so I am wondering if you use it correctly. In addition, this will be unified from 2.0. So I care about the DPDK version. 2. The UDP stream is occasionally hit the hash key of queue 0. You'd better to try to send your UDP stream with random 5-tuples, to get the hash value hit different queues randomly.
Regards, Helin > > > Regards, > Haifeng > > -----Original Message----- > From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com] > Sent: Friday, February 27, 2015 6:55 PM > To: lhffjzh > Cc: dev at dpdk.org > Subject: Re: Why only rx queue "0" can receive network packet by i40e NIC > > 2015-02-27 16:47, lhffjzh: > > Hi All, > > > > We use 4 cores loop 4 rx queues on one i40e port, but only rx queue "0" > can > > receive network packet, do anyone kindly know why? BTW, all of network > > packet has same destination ip address but has more than 200 different > > source ip address. > > It's possible that you don't have any answer for 2 reasons: > - you replied in a thread dedicated to Cisco enic questions > - you didn't describe your usage enough to understand your problem > > I suggest to use the button "new email" instead of "reply all" to > start a new question with enough details. > > Did you noticed you put some Cisco guys in CC instead of putting the > Intel responsible for i40e (see MAINTAINERS file)? >
