6 Replies Latest reply on Mar 12, 2018 8:13 PM by Intel Corporation

    XL710 - Traffic Steering. Can I please request clarification on hardware capability

    MJay

      Hello,

      Can I please ask clarifications on XL710 on VLAN steering. I have few questions regarding it on top of what was asked before. Really appreciate for your valuable input please

       

      1. 7.4.8.4 "VEB/VEPA Switching Algorithm" states that filtering happens by MAC+VLAN. It is impossible to perform filtering by VLAN only, as I understand it is HW limitation.

       

      XL710 has something called "7.4.8.2 S-comp Forwarding Algorithm" which looks like exactly what we want. It does forwarding of packets to specific VSI based on S-tag. S-tag is a part of "7.4.9.5.5.1 Add VSI (0x0210)" command. I guess we can configure several VSIs for expected S-tags. Can you help us understand how to use this algorithm please?

       

      As I understood "port virtualizer" (7.4.2.4.3 "Cascaded VEB and port virtualizers") supposed to be configured to use this switching algorithm. In i40e driver (kernel or DPDK) I do not see anything related to configuration of "port virtualizers", except "i40e_aq_add_pvirt" function which is not used anywhere.

      Is it possible to configure "port virtualizer" with existing latest i40e driver?

       

      Another question is about "i40e_aq_set_vsi_uc_promisc_on_vlan" function in i40e driver (7.4.9.5.9.5 "Set VSI Promiscuous Modes"). It enables promiscuous mode for unicast packets with specific VLAN, so all packets with that VLAN will be replicated to configured VSI. In XL710 datasheet I`ve found that it works only in "Cloud VEB algorithm" (7.4.8.6). Can we somehow enable this algorithm with existing i40e drivers?

       

      Thannk you so much