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In packets with ESP header, the inner IP will be encrypted, and its fields cannot be used for RSS hashing. So, ESP packets can be hashed only by the outer IP layer. So, when using RSS on ESP packets, hashing may not be efficient, because the fields used by the hash functions are only the outer IPs, causing all traffic belonging to all tunnels between a given pair of GWs to land on one core. Adding the SPI hash field can extend the spreading of IPsec packets. Signed-off-by: Raja Zidane <rzidane@nvidia.com> Acked-by: Matan Azrad <matan@nvidia.com>
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