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This patch extends HCA_CAP and SQ Context structs available in PRM. This fields allow checking if NIC supports storing hairpin SQ's WQ buffer in host memory and configuring such memory placement. HCA capabilities are extended with the following fields: - hairpin_sq_wq_in_host_mem - If set, then NIC supports using host memory as a backing storage for hairpin SQ's WQ buffer. - hairpin_sq_wqe_bb_size - Indicates the required size of SQ WQE basic block. SQ Context is extended with hairpin_wq_buffer_type which informs NIC where SQ's WQ buffer will be stored. This field can take the following values: - MLX5_SQC_HAIRPIN_WQ_BUFFER_TYPE_INTERNAL_BUFFER - WQ buffer will be stored in unlocked device memory. - MLX5_SQC_HAIRPIN_WQ_BUFFER_TYPE_HOST_MEMORY - WQ buffer will be stored in host memory. Buffer is provided by PMD. Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com> Acked-by: Viacheslav Ovsiienko <viacheslavo@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