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VXLAN interfaces are dynamically created for each local UDP port of outer networks and then used as targets for TC "flower" filters in order to perform encapsulation. These VXLAN interfaces are system-wide, the only one device with given UDP port can exist in the system (the attempt of creating another device with the same UDP local port returns EEXIST), so PMD should support the shared device instances database for PMD instances. These VXLAN implicitly created devices are called VTEPs (Virtual Tunnel End Points). Creation of the VTEP occurs at the moment of rule applying. The link is set up, root ingress qdisc is also initialized. Encapsulation VTEPs are created on per port basis, the single VTEP is attached to the outer interface and is shared for all encapsulation rules on this interface. The source UDP port is automatically selected in range 30000-60000. For decapsulaton one VTEP is created per every unique UDP local port to accept tunnel traffic. The name of created VTEP consists of prefix "vmlx_" and the number of UDP port in decimal digits without leading zeros (vmlx_4789). The VTEP can be preliminary created in the system before the launching application, it allows to share UDP ports between primary and secondary processes. Suggested-by: Adrien Mazarguil <adrien.mazarguil@6wind.com> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com> Acked-by: Yongseok Koh <yskoh@mellanox.com> |
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| kernel | ||
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| test | ||
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| README | ||
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org