Solved... had to disable spoof checking: ip link set p7p1 vf 0 spoofchk off ip link set p7p2 vf 0 spoofchk off
Thank you! On Tue, Oct 15, 2019 at 11:03 AM Bill Michalowski <bmich...@redhat.com> wrote: > Thank you for the suggestion Lance, but that didn't correct the problem. > > That being said, I would think that testpmd in "io" mode would just > forward the packets in the SR-IOV case just as it successfully does with > testpmd across the PFs (non SR-IOV) - but I could be wrong. > > On Tue, Oct 15, 2019 at 10:26 AM Lance Richardson < > lance.richard...@broadcom.com> wrote: > >> Hi Bill, >> >> This is just a guess, but perhaps the transmit drops are due to MAC >> anti-spoofing checks? >> >> You could probably prove/disprove by making the packet source MAC >> match the transmit VF's MAC. >> >> Lance >> >> >> On Tue, Oct 15, 2019 at 10:01 AM Bill Michalowski <bmich...@redhat.com> >> wrote: >> > >> > I'm trying run testpmd with SR-IOV, specifically across two VFs. I see >> > packets being received successfully by the application but they are not >> > being transmitted. They are dropped with the 'TX-errors' counters >> > incrementing. >> > >> > However, if I generate the same traffic and the DUT isn't programmed >> with >> > SR-IOV, but with testpmd just across PFs, the packets are transmitted >> just >> > fine and I don't have any TX-errors. I'm hoping someone can help me >> figure >> > out why the TX packets are being dropped in the SR-IOV case. >> > >> > testpmd is running in the default "io" mode. >> > >> > The DUT is a two port Intel xxv710 25G card. To simplify things, I'm >> not >> > actually using a guest, just testpmd across VFs. >> > >> > *# rpm -qa | grep dpdk* >> > dpdk-18.11.2-1.el7.x86_64 >> > >> > *# uname -r* >> > 3.10.0-1062.1.2.el7.x86_64 >> > >> > *# cat /etc/redhat-release * >> > Red Hat Enterprise Linux Server release 7.7 (Maipo) >> > >> > PFs: >> > >> > #* ethtool -i p7p1* >> > driver: i40e >> > version: 2.10.19.30 >> > firmware-version: 6.80 0x80003d17 18.8.9 >> > expansion-rom-version: >> > bus-info: 0000:86:00.0 >> > >> > *# ethtool -i p7p2* >> > driver: i40e >> > version: 2.10.19.30 >> > firmware-version: 6.80 0x80003d17 18.8.9 >> > expansion-rom-version: >> > bus-info: 0000:86:00.1 >> > >> > Procedure: >> > >> > Create VFs: >> > >> > *#echo 1 > /sys/class/net/p7p1/device/sriov_numvfs* >> > >> > *#echo 1 > /sys/class/net/p7p2/device/sriov_numvfs* >> > >> > *# ip l* >> > 4: p7p1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP >> mode >> > DEFAULT group default qlen 1000 >> > link/ether 3c:fd:fe:b9:c8:a0 brd ff:ff:ff:ff:ff:ff >> > vf 0 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, >> trust >> > off >> > 5: p7p2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP >> mode >> > DEFAULT group default qlen 1000 >> > link/ether 3c:fd:fe:b9:c8:a1 brd ff:ff:ff:ff:ff:ff >> > vf 0 MAC 00:00:00:00:00:00, spoof checking on, link-state auto, >> trust >> > off >> > 13: p7p1_0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode >> > DEFAULT group default qlen 1000 >> > link/ether 6a:ff:a3:55:23:4e brd ff:ff:ff:ff:ff:ff >> > 14: p7p2_0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode >> > DEFAULT group default qlen 1000 >> > link/ether da:a1:1c:c4:6c:e7 brd ff:ff:ff:ff:ff:ff >> > >> > *# ethtool -i p7p1_0* >> > driver: iavf >> > version: 3.7.53 >> > firmware-version: N/A >> > expansion-rom-version: >> > bus-info: 0000:86:02.0 >> > >> > *# ethtool -i p7p2_0* >> > driver: iavf >> > version: 3.7.53 >> > firmware-version: N/A >> > expansion-rom-version: >> > bus-info: 0000:86:0a.0 >> > >> > Set MAC addresses: >> > >> > *#ip link set p7p1 vf 0 mac a0:b0:c0:d0:e0:f0* >> > *#ip link set p7p2 vf 0 mac 66:55:44:33:22:11* >> > >> > Set trust mode: >> > >> > >> > >> > *#ip link set p7p1 vf 0 trust on#ip link set p7p2 vf 0 trust on* >> > >> > Unbind iavf from VFs and bind vfio-pci to them: >> > >> > *# modprobe vfio-pci* >> > *# dpdk-devbind -u 0000:86:02.0 0000:86:0a.0* >> > *# dpdk-devbind -b vfio-pci 0000:86:02.0 0000:86:0a.0* >> > *# dpdk-devbind -s* >> > >> > Network devices using DPDK-compatible driver >> > ============================================ >> > 0000:86:02.0 'Ethernet Virtual Function 700 Series 154c' drv=vfio-pci >> > unused=iavf >> > 0000:86:0a.0 'Ethernet Virtual Function 700 Series 154c' drv=vfio-pci >> > unused=iavf >> > >> > Start testpmd: >> > >> > #*/usr/bin/testpmd -l 1,3,35 --socket-mem 1024,1024 -n 4 --proc-type >> auto >> > --file-prefix testpmd0 -w 0000:86:02.0 -w 0000:86:0a.0 -- --nb-cores=2 >> > --nb-ports=2 --portmask=3 --auto-start --rxq=1 --txq=1 --rxd=2048 >> > --txd=2048 -i* >> > >> > Starting traffic at the far end, packets are RX successfully on the DUT >> but >> > not TX, with many TX-errors: >> > >> > *testpmd> show port stats all* >> > >> > ######################## NIC statistics for port 0 >> > ######################## >> > RX-packets: 144132155 RX-missed: 0 RX-bytes: 9224457088 >> > RX-errors: 0 >> > RX-nombuf: 0 >> > TX-packets: 0 TX-errors: 137664400 TX-bytes: 0 >> > >> > Throughput (since last show) >> > Rx-pps: 19000875 >> > Tx-pps: 0 >> > >> > >> ############################################################################ >> > >> > ######################## NIC statistics for port 1 >> > ######################## >> > RX-packets: 144324307 RX-missed: 0 RX-bytes: 9236754880 >> > RX-errors: 0 >> > RX-nombuf: 0 >> > TX-packets: 0 TX-errors: 137873118 TX-bytes: 0 >> > >> > Throughput (since last show) >> > Rx-pps: 19000772 >> > Tx-pps: 0 >> > >> > >> ############################################################################ >> > >> > Thanks for any help. >> > >> > - Bill >> >
