> -----Original Message----- > From: Jeff Venable, Sr. [mailto:jeff at vectranetworks.com] > Sent: Wednesday, July 29, 2015 6:59 PM > To: Zhang, Helin > Cc: dev at dpdk.org; lhffjzh; 'Thomas Monjalon' > Subject: RE: [dpdk-dev] Why only rx queue "0" can receive network packet by > i40e NIC > > Hi Helin, > > We do not want RSS to include L4 ports in the hash because packet fragments > would get routed to queue #0 and would be more difficult to work with. We are > using the model where multiple CPUs are pulling from the NIC queues > independently with no shared state, so each 'pipeline' has private fragment > reassembly state for the sessions it is managing. > > Getting RSS Toeplitz hash to work on { source_ip, dest_ip } tuples only using > a > symmetric rss-key is important. This works properly with all other Intel > NICs in > the DPDK thus far that we have tested until the i40E PMD with the Intel > X710-DA4. > The Microsoft RSS specification allows for this. This is a bit similar to some complains to flow director. I will check it with somebody else to see if there is anything we can do for this. And I remember there might a bit hard. Will let you know if I have any update.
Thanks, Helin > > With the i40E PMD, we have been unsuccessful at enabling this RSS > configuration. > From the source code and XL710 controller datasheet, we cannot find any > reference to the flags for this RSS mode. Unless we can achieve feature > parity > with the other Intel NICs, we don't want to write special case code for this > one > driver which makes the XL710 controller unusable for us and seems contrary to > the intent of the DPDK APIs which are abstracting this behavior. > > Do you have any suggestions? > > Thanks kindly, > > Jeff > > -----Original Message----- > From: Zhang, Helin [mailto:helin.zhang at intel.com] > Sent: Wednesday, July 22, 2015 5:56 PM > To: Jeff Venable, Sr. <jeff at vectranetworks.com>; lhffjzh <lhffjzh at > 126.com>; > 'Thomas Monjalon' <thomas.monjalon at 6wind.com> > Cc: dev at dpdk.org > Subject: RE: [dpdk-dev] Why only rx queue "0" can receive network packet by > i40e NIC > > > > > -----Original Message----- > > From: Jeff Venable, Sr. [mailto:jeff at vectranetworks.com] > > Sent: Wednesday, July 22, 2015 5:47 PM > > To: Zhang, Helin; lhffjzh; 'Thomas Monjalon' > > Cc: dev at dpdk.org > > Subject: RE: [dpdk-dev] Why only rx queue "0" can receive network > > packet by i40e NIC > > > > Is the I40E incapable of operating RSS with ETH_RSS_IP (i.e. hashing > > without L4 ports)? > Why do you think like this? Sorry, I am a bit confused. > ETH_RSS_IP is a super set of all IP based rss types. Please see the rss types > listed > in rte_ethdev.h. > The supports rss types of each NIC can be queried via 'struct > rte_eth_dev_info' > of field 'flow_type_rss_offloads'. > > Regards, > Helin > > > > > Thanks, > > > > Jeff > > > > -----Original Message----- > > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Zhang, Helin > > Sent: Saturday, February 28, 2015 6:34 AM > > To: lhffjzh; '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 > > > > Good to know that! > > > > > -----Original Message----- > > > From: lhffjzh [mailto:lhffjzh at 126.com] > > > Sent: Saturday, February 28, 2015 12:34 PM > > > To: Zhang, Helin; '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 Helin, > > > > > > Thanks a lot for your great help, all of rx queue received network > > > packet after I update rss_hf from "ETH_RSS_IP" to " ETH_RSS_PROTO_MASK > ". > > > > > > static struct rte_eth_conf port_conf = { > > > .rxmode = { > > > .mq_mode = ETH_MQ_RX_RSS, > > > .max_rx_pkt_len = ETHER_MAX_LEN, > > > .split_hdr_size = 0, > > > .header_split = 0, /**< Header Split disabled */ > > > .hw_ip_checksum = 1, /**< IP checksum offload enabled */ > > > .hw_vlan_filter = 0, /**< VLAN filtering disabled */ > > > .jumbo_frame = 0, /**< Jumbo Frame Support disabled */ > > > .hw_strip_crc = 0, /**< CRC stripped by hardware */ > > > }, > > > .rx_adv_conf = { > > > .rss_conf = { > > > .rss_key = NULL, > > > .rss_hf = ETH_RSS_PROTO_MASK, > > > }, > > > }, > > > .txmode = { > > > .mq_mode = ETH_MQ_TX_NONE, > > > }, > > > .fdir_conf.mode = RTE_FDIR_MODE_SIGNATURE, }; > > > > > > > > > Regards, > > > Haifeng > > > > > > -----Original Message----- > > > From: Zhang, Helin [mailto:helin.zhang at intel.com] > > > Sent: Saturday, February 28, 2015 11:18 AM > > > To: lhffjzh; '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 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)? > > > > > > >
