Hi, I'm seeing two problems:
1) when use our kernel '3.10.88-8.0.0.0.6', we only receive first packet but not subsequent ones at all after that. However, when I use centos7.0, then l2fwd is able to receive all the packets. 2) I've also seen that on centos7.0, symmetric_mp itself is not working. dev start fails with 280 error. i40evf is giving us lot of headache. The i40evf kernel driver works without any problem. Host is a centos7 KVM. I've already upgraded firmware to latest. [root at localhost ~]# uname -a Linux localhost.localdomain 3.10.0-327.4.5.el7.x86_64 #1 SMP Mon Jan 25 22:07:14 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux [root at localhost ~]# [root at localhost ~]# ./symmetric_mp fakeelf --file-prefix=virtaddr -c2 -m2048 -n1 --base-virtaddr=0x7fa000000000 --proc-type=primary -- -p 3 --num-procs=1 --proc-id=0 EAL: Detected lcore 0 as core 0 on socket 0 EAL: Detected lcore 1 as core 0 on socket 0 EAL: Support maximum 128 logical core(s) by configuration. EAL: Detected 2 lcore(s) EAL: No free hugepages reported in hugepages-1048576kB EAL: VFIO modules not all loaded, skip VFIO support... EAL: Setting up physically contiguous memory... EAL: Ask a virtual area of 0x2a800000 bytes EAL: Virtual area found at 0x7fa000000000 (size = 0x2a800000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fa02a800000 (size = 0x200000) EAL: Ask a virtual area of 0x54000000 bytes EAL: Virtual area found at 0x7fa02aa00000 (size = 0x54000000) EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7fa07ea00000 (size = 0x400000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fa07ee00000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fa07f000000 (size = 0x200000) EAL: Ask a virtual area of 0x600000 bytes EAL: Virtual area found at 0x7fa07f200000 (size = 0x600000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fa07f800000 (size = 0x200000) EAL: Ask a virtual area of 0x200000 bytes EAL: Virtual area found at 0x7fa07fa00000 (size = 0x200000) EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7fa07fc00000 (size = 0x400000) EAL: Requesting 1024 pages of size 2MB from socket 0 EAL: TSC frequency is ~2600000 KHz EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable clock cycles ! EAL: Master lcore 1 is ready (tid=3e55900;cpuset=[1]) EAL: PCI device 0000:00:09.0 on NUMA socket -1 EAL: probe driver: 8086:154c rte_i40evf_pmd EAL: PCI memory mapped at 0x7fa080000000 EAL: PCI memory mapped at 0x7fa080010000 EAL: PCI device 0000:00:0a.0 on NUMA socket -1 EAL: probe driver: 8086:154c rte_i40evf_pmd EAL: PCI memory mapped at 0x7fa080014000 EAL: PCI memory mapped at 0x7fa080024000 # Initialising port 0... Queue :1 PMD: i40e_dev_rx_queue_setup(): Rx Burst Bulk Alloc Preconditions are satisfied. Rx Burst Bulk Alloc function will be used on port=0, queue=0. PMD: i40e_set_tx_function_flag(): Vector tx can be enabled on this txq. PMD: i40e_set_rx_function(): Port[0] doesn't meet Vector Rx preconditions PMD: i40e_set_rx_function(): Rx Burst Bulk Alloc Preconditions are satisfied. Rx Burst Bulk Alloc function will be used on port=0. PMD: i40e_set_tx_function(): Simple tx finally be used. smp_port_init() dev start error 280 EAL: Error - exiting with code: 1 Cause: Error initialising ports [root at localhost ~]#
