https://bugs.dpdk.org/show_bug.cgi?id=1473 Bug ID: 1473 Summary: [dpdk-24.07] vxlan/vxlan_ipv6_checksum_offload: IPV6-Vxlan TX droped by outer sw csum Product: DPDK Version: 24.07 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: Normal Component: ethdev Assignee: dev@dpdk.org Reporter: zhiminx.huang@intel.com Target Milestone: --- Environment: DPDK version: v24.07-rc1: 4a44d97f0a52a76258c6a6cb6a713f4380a8ab1f OS: Ubuntu 24.04 LTS/6.8.0-31-generic Compiler: gcc version 13.2.0 Hardware platform: Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz NIC hardware: Intel Corporation Ethernet Controller XXV710 for 25GbE SFP28 [8086:158b] NIC firmware: i40e: 2.25.7 FW: 9.50 0x8000f167 1.3597.0 Test Setup: 1. usertools/dpdk-devbind.py --force --bind=vfio-pci 0000:af:00.0 2. ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 1-5 -n 4 -a 0000:af:00.0 -- -i --enable-rx-cksum set fwd csum rx_vxlan_port add 4789 0 port stop all csum set udp hw 0 csum set tcp hw 0 csum set sctp hw 0 csum parse-tunnel on 0 csum set outer-ip sw 0 port start all start 3. scapy: sendp([Ether(src='00:00:10:00:00:00', dst='3c:fd:fe:cf:33:74')/IPv6(src='fe80::', dst='fe80::1')/UDP(sport=63, dport=4789)/VXLAN(vni=1)/Ether(src='00:00:20:00:00:00', dst='00:00:20:00:00:01')/IP(src='192.168.2.1', dst='192.168.2.2')/UDP()/Raw(load=b'XXXXXXXXXXXXXXXXXX')],iface="ens2f0",count=1,inter=0,verbose=False) 4.stop testpmd and check the output Show the output from the previous commands. ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 1 RX-dropped: 0 RX-total: 1 Bad-ipcsum: 0 Bad-l4csum: 0 Bad-outer-l4csum: 0 Bad-outer-ipcsum: 0 TX-packets: 0 TX-dropped: 1 TX-total: 1 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 1 RX-dropped: 0 RX-total: 1 TX-packets: 0 TX-dropped: 1 TX-total: 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Expected Result: no tx-droped Is this issue a regression: (Y/N) Y commit 6b5e31f7fbd71675c8f3f6d8c0f74fd1f3a0dff5 Author: David Marchand Date: Thu Apr 18 10:20:19 2024 +0200 net/i40e: fix outer UDP checksum offload for X710 According to the X710 datasheet (and confirmed on the field..), X710 devices do not support outer checksum offload. """ 8.4.4.2 Transmit L3 and L4 Integrity Offload Tunneling UDP headers and GRE header are not offloaded while the X710/XXV710/XL710 leaves their checksum field as is. If a checksum is required, software should provide it as well as the inner checksum value(s) that are required for the outer checksum. """ Fix Tx offload capabilities according to the hardware. X722 may support such offload by setting I40E_TXD_CTX_QW0_L4T_CS_MASK. Bugzilla ID: 1406 Fixes: 8cc79a1636cd ("net/i40e: fix forward outer IPv6 VXLAN") Cc: stable@dpdk.org Reported-by: Jun Wang Signed-off-by: David Marchand Tested-by: Ali Alnubani -- You are receiving this mail because: You are the assignee for the bug.