Hi, I'm testing an Intel 700-Series (XL710) NIC using testpmd, given the instructions from here https://software.intel.com/content/www/us/en/develop/articles/intel-ethernet-controller-700-series-hash-and-flow-director-filters.html I wanted to modify the inset such that an UDP header checksum would be taken into account while receiving packets.
To test if it works, I've prepare a bunch of UDP packets all identical but the checksum - for those packets normal RSS rules fail to split the traffic across the queues, unless the checksum is taken into account. I've configured testpmd like this: ./dpdk-testpmd -w 0000:b3:00.0 -- -i --rxq=4 --txq=4 --forward=rxonly Then: . testpmd> port config 0 pctype mapping update 31 31 testpmd> port config 0 pctype 31 hash_inset clear all testpmd> port config 0 pctype 31 hash_inset set field 32 testpmd> port config all rss 31 . Where pctype 31 would be "Non-Fragmented IPv4, UDP" and field 32 of the "field Vector" would be the udp checksum (According to https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/xl710-10-40-controller-datasheet.pdf Table 7-12. Default field vector table) And then started capturing, having set the hash_inset field 32 to enabled I should be using that particular UDP field (checksum) for hashing. But, those testpmd commands are not doing much, all the packets end up all in the same queue even if the checksums are different for all the packets. Can anyone help to setup properly testpmd? Thanks -- BR, Filip +48 666 369 823
