<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false"><div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">Hi Team,</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">In our application we use 2 interfaces one to communicate towards gNB and another to communicate with higher layers in a UE simulator NR stack. Now we use a PCI whose driver is i40e and is bind to dpdk vfio-pci driver and this works perfectly towards higher layer, but the other interface PCI whose is ixgbe driver is bind to vfio-pci dpdk driver and has some issues. </div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">The issues are:</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">1. Application crashes when "rte_eth_dev_mac_addr_add" function is called when return with -1.</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"> "on a 82599 VF, adding again the same MAC addr is not an idempotent operation..." this is a comment, but the function<i><b> ixgbevf_add_mac_addr</b></i> return -1 when memcmp(hw->mac.perm_addr, mac_addr) == 0) is true. </div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">But above I commented the "return -1" and just returned from it, so crash is not seen.</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">2. After above 1, application is started successfully but then I do not see any messages coming on this interface. This is the problem? </div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">Could you guide me what is the issue? I see only issue with ixgbvf but not for i40evf.</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">I am using dpdk-stable-19.11.5 version.</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">Kindly help me here.</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><br></div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">Regards,</div><div dir="ltr" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">Mohan</div></div><br></div></div></body></html>