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preface stay Eal:Error reading from file descriptor 33: Input/output error In this article, I described the problem of printing Input/output error when dpdk program in VMWARE environment uses 82545EM virtual network card. This problem was finally solved by modifying igb_uio code repair, after repair, I can't help thinking about how user mode ...

preface The common igb electric interface network card needs to support the configuration of rate duplex, but the interface of rate duplex is not configured in dpdk-19.11. Therefore, it needs to be developed, and the implementation method needs to be determined by studying the driver codes of different network cards. In this paper, the igb ne ...

DPDK-20.11. Version 3 uses meson and ninja for compilation and installation. Refer to the previous process DPDK-20.11.3 in CentOS 8 Compile and run on 4 According to this step, after the compilation and installation is completed, it can be found that the test case executable has been generated in the build/app and build/example directories. At ...

Problem description In a newly imported hardware, the service port uses the x710 network card with four optical ports. The dpdk program reports the following error during initialization: EAL: PCI device 0000:16:00.0 on NUMA socket -1 EAL: probe driver: 8086:1581 rte_i40e_pmd EAL: PCI memory mapped at 0x4200120000 EAL: PCI memory mapped ...

Problem description In VMWARE virtual machine, 82545EM virtual network card is bound with IGB_ After UIO, run the dpdk program, which always has the following alarm information: Eal:Error reading from file descriptor 33: Input/output error The dpdk version used is 16.04 and the program is l2fwd. problem analysis 1. dpdk internal code Co ...