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Extended atomic operations are a set of operations beyond those defined by the IB Spec. Atomicity guarantees, Atomic Ack generation, ordering rules and error behavior for this set of extended atomic operations is the same as that for IB standard Atomic operations.

Extended Atomics Experimental Verbs

  • Ibv_exp_post_send
    • IBV_EXP_WR_EXT_MASKED_ATOMIC_CMP_AND_SWP
    • IBV_EXP_WR_EXT_MASKED_ATOMIC_FETCH_AND_ADD
    • IBV_EXP_SEND_EXT_ATOMIC_INLINE
    • ext_op.masked_atomics
  • ibv_exp_create_qp
    • max_atomic_arg
  • ibv_exp_poll_cq
    • IBV_EXP_WC_MASKED_COMP_SWAP
    • IBV_EXP_WC_MASKED_FETCH_ADD
  • ibv_exp_query_device
    • ext_atom

Extended Atomics Experimental Capabilities and Device Attributes

  • IBV_EXP_DEVICE_EXT_ATOMICS
  • IBV_EXP_DEVICE_EXT_MASKED_ATOMICS
  • IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS
  • IBV_EXP_DEVICE_ATTR_EXT_ATOMIC_ARGS
  • IBV_EXP_DEVICE_ATTR_MASKED_ATOMICS

RDMA-Core Support

This feature is currently not supported by RDMA-Core.

For further information, please contact Support.