• The DPDK Kernel NIC Interface (KNI) allows userspace applications access to the Linux* control plane.
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KNI provides an interface with the kernel network stack and allows.

1Vector PMD for IXGBE Vector PMD uses Intel® SIMD instructions to optimize packet I/O.

Add KNI PMD which wraps librte_kni for ease.

KNI Poll Mode Driver ¶. .

This PMD enables using KNI without having a KNI specific application, any forwarding application can use PMD interface for KNI.

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2-rc1 documentation. . Together with the DPDK PMD virtio, it significantly improves the throughput between guest and host.

KNI Poll Mode Driver.

24. 2 documentation. This can be activated by --vdev=net_tun0, iface=test.

但是，因为. 0 documentation.

KNI Poll Mode Driver — Data Plane Development Kit 17.

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11. You said that I can use KNI interfaces for this purpose.

This set of libraries provides the so-called “Environment Abstraction Layer” (EAL). May 21, 2019 · This PMD enables using KNI without having a KNI specific application, any forwarding application can use PMD interface for KNI.

KNI PMD is wrapper to the librte_kni library.
DPDK has TUN PMD, which is IP layer.
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So, I wanted to use veth interfaces for creating some of dpdk nodes in my nodes.

KNI Poll Mode Driver.

Sending packets to any DPDK controlled interface or sending to the Linux networking stack will be transparent to the DPDK application. In the scenario where DPDK is running as fast path in the host, kni-vhost is an efficient path for the traffic. .

. KNI provides an interface with the kernel network stack and allows management of DPDK ports using standard Linux net tools such as ethtool, iproute2 and tcpdump. 在某些情况下，应用程序使用libc提供的动态内存分配机制是必要的，如malloc（）函数，它是一种灵活的内存分配和释放方式。. . .

Together with the DPDK PMD virtio, it significantly improves the throughput between guest and host.

. DPDK提供了一个优化版本的rte_memcpy（） API，它充分利用了Intel的SIMD指令集，也考虑了数据的对齐特性和缓存操作友好性。.

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With this enhancement, virtio could achieve quite promising performance.

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