Hello, I see there is no answer.
Did you try with testpmd? I don't know whether it can be a limitation of dpdk-pktgen? 29/05/2024 03:32, Yasuhiro Ohara: > Hi. My colleague is trying to generate 400Gbps traffic using ConnectX-7, > but with no luck. > > Has anyone succeeded in generating 400Gbps (by larger than 1500B is ok), > or are there any known issues? > > Using dpdk-pktgen, the link is successfully recognized as 400GbE > but when we start the traffic, it seems to be capped at 100Gbps. > > Some info follows. > > [ 1.490256] mlx5_core 0000:01:00.0: firmware version: 28.41.1000 > [ 1.492853] mlx5_core 0000:01:00.0: 504.112 Gb/s available PCIe > bandwidth (32.0 GT/s PCIe x16 link) > [ 1.805419] mlx5_core 0000:01:00.0: Rate limit: 127 rates are > supported, range: 0Mbps to 195312Mbps > [ 1.808477] mlx5_core 0000:01:00.0: E-Switch: Total vports 18, per > vport: max uc(128) max mc(2048) > [ 1.827270] mlx5_core 0000:01:00.0: Port module event: module 0, > Cable unplugged > [ 1.830317] mlx5_core 0000:01:00.0: mlx5_pcie_event:298:(pid 9): > PCIe slot advertised sufficient power (75W). > [ 1.830610] mlx5_core 0000:01:00.0: MLX5E: StrdRq(1) RqSz(8) > StrdSz(2048) RxCqeCmprss(0) > [ 1.929813] mlx5_core 0000:01:00.0: Supported tc offload range - > chains: 4294967294, prios: 4294967295 > > Device type: ConnectX7 > Name: MCX75310AAS-NEA_Ax > Description: NVIDIA ConnectX-7 HHHL Adapter card; 400GbE / NDR IB > (default mode); Single-port OSFP; PCIe 5.0 x16; Crypto Disabled; > Secure Boot Enabled; > Device: /dev/mst/mt4129_pciconf0 > > Enabled Link Speed (Ext.) : 0x00010000 (400G_4X) > Supported Cable Speed (Ext.) : 0x00010800 (400G_4X,100G_1X) > > pktgen result: > > Pkts/s Rx : 0 > TX : 8059264 > > MBits/s Rx/Tx : 0/97742 > > > Any info is appreciated. Thanks. > > regards, > Yasu >
