MEMORY MAPPED VIRTUAL DOORBELL MECHANISM
    9.
    发明申请

    公开(公告)号:US20200341766A1

    公开(公告)日:2020-10-29

    申请号:US16397217

    申请日:2019-04-29

    申请人: Intel Corporation

    摘要: An apparatus to facilitate doorbell notifications is disclosed. The apparatus includes memory-mapped I/O (MMIO) base address registers including a physical function (PF) and plurality of virtual functions (VF), wherein each function's base address register comprises a plurality of doorbell pages and doorbell hardware including doorbell registers, each having an assignable function identifier (ID) and offset, and comprising a plurality of doorbells to activate a doorbell notification in response to receiving a doorbell trigger from an associated doorbell page set upon detection of an access request.