CQE compression saves PCIe bandwidth by compressing a few CQEs into a smaller amount of bytes on the PCIe.
CQE Compression Environmental Variables
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MLX5_ENABLE_CQE_COMPRESSION
CQE Compression Experimental Verbs
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ibv_exp_create_cq-
IBV_EXP_CQ_COMPRESSED_CQE
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CQE Compression Capabilities
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IBV_EXP_CQ_COMPRESSED_CQE
CQE Compression RDMA-Core Verbs
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mlx5dv_create_cq-
cqe_comp_res_format -
MLX5DV_CQ_INIT_ATTR_MASK_COMPRESSED_CQE
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CQE Compression RDMA-Core Capabilities
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mlx5dv_query_device-
mlx5dv_cqe_comp_caps
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Relevant Man Pages
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