Hello DPDK dev, I was struggling with the packet fragmentation, since the dpdk application(l3fwd, ip-fragmentation, ip-assemble) did not recognized the received packet as the ipv4 header.
At first, I have crafted my own packets when sending ipv4 headers so I assumed that I was crafting the packets in a wrong way. So I have used DPDK-pktgen but dpdk-application (l3fwd, ip-fragmentation, ip-assemble) did not recognized the ipv4 header. As the last resort, I have tested the dpdk-testpmd, and found out this in the status info. ------------------------------------------------------------ -------------------- ********************* Infos for port 1 ********************* MAC address: E4:1D:2D:D9:CB:81 Driver name: net_mlx4 Connect to socket: 1 memory allocation on the socket: 1 Link status: up Link speed: 10000 Mbps Link duplex: full-duplex MTU: 1500 Promiscuous mode: enabled Allmulticast mode: disabled Maximum number of MAC addresses: 127 Maximum number of MAC addresses of hash filtering: 0 VLAN offload: strip on filter on qinq(extend) off No flow type is supported. Max possible RX queues: 65408 Max possible number of RXDs per queue: 65535 Min possible number of RXDs per queue: 0 RXDs number alignment: 1 Max possible TX queues: 65408 Max possible number of TXDs per queue: 65535 Min possible number of TXDs per queue: 0 TXDs number alignment: 1 testpmd> show port ------------------------------------------------------------ -------------------- I have also tried out the Intel NIC driver that I have. ------------------------------------------------------------ -------------------- ********************* Infos for port 1 ********************* MAC address: 00:1B:21:A6:D4:D6 Driver name: net_e1000_igb Connect to socket: 0 memory allocation on the socket: 0 Link status: up Link speed: 100 Mbps Link duplex: full-duplex MTU: 1500 Promiscuous mode: enabled Allmulticast mode: disabled Maximum number of MAC addresses: 24 Maximum number of MAC addresses of hash filtering: 0 VLAN offload: strip on filter on qinq(extend) off Hash key size in bytes: 40 Redirection table size: 128 Supported flow types: ipv4 ipv4-tcp ipv4-udp ipv6 ipv6-tcp ipv6-udp unknown unknown unknown Max possible RX queues: 8 Max possible number of RXDs per queue: 4096 Min possible number of RXDs per queue: 32 RXDs number alignment: 8 Max possible TX queues: 8 Max possible number of TXDs per queue: 4096 Min possible number of TXDs per queue: 32 TXDs number alignment: 8 ------------------------------------------------------------ -------------------- According to DPDK documentation. in the flow type of the info status of port 1 should show, but mine shows that no flow type is supported. ------------------------------------------------------------ -------------------- Supported flow types: ipv4-frag ipv4-tcp ipv4-udp ipv4-sctp ipv4-other ipv6-frag ipv6-tcp ipv6-udp ipv6-sctp ipv6-other l2_payload port vxlan geneve nvgre ------------------------------------------------------------ --------------------- So Is my NIC, Mellanox Connect X-3 does not support IP fragmentation? Or is there additional configuration that needs to be done?
