CQE Compression

CQE compression saves PCIe bandwidth by compressing a few CQEs into a smaller amount of bytes on the PCIe.

• MLX5_ENABLE_CQE_COMPRESSION

• ibv_exp_create_cq

  • IBV_EXP_CQ_COMPRESSED_CQE

• IBV_EXP_CQ_COMPRESSED_CQE

• mlx5dv_create_cq

  • cqe_comp_res_format

  • MLX5DV_CQ_INIT_ATTR_MASK_COMPRESSED_CQE

• mlx5dv_query_device

  • mlx5dv_cqe_comp_caps

mlx5dv_create_cq: https://github.com/linux-rdma/rdma-core/blob/master/providers/mlx5/man/mlx5dv_create_cq.3.md