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To support two ports hairpin mode and keep the backward compatibility for the application, two new attribute members of the hairpin queue configuration structure will be added. `tx_explicit` means if the application itself will insert the Tx part flow rules. If not set, PMD will insert the rules implicitly. `manual_bind` means if the hairpin Tx queue and peer Rx queue will be bound automatically during the device start stage. Different Tx and Rx queue pairs could have different values, but it is highly recommended that all paired queues between one egress and its peer ingress ports have the same values, in order not to bring any chaos to the system. The actual support of these attribute parameters will be checked and decided by the PMD drivers. In the single port hairpin, if both are zero without any setting, the behavior will remain the same as before. It means that no bind API needs to be called and no Tx flow rules need to be inserted manually by the application. Signed-off-by: Bing Zhao <bingz@nvidia.com> Acked-by: Ori Kam <orika@nvidia.com> Acked-by: Thomas Monjalon <thomas@monjalon.net>
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