• Stefan Roscher's avatar
    IB/ehca: Support small QP queues · e2f81daf
    Stefan Roscher authored
    eHCA2 supports QP queues that can be as small as 512 bytes. This
    greatly reduces memory overhead for consumers that use lots of QPs
    with small queues (e.g. RDMA-only QPs). Apart from dealing with
    firmware, this code needs to manage bite-sized chunks of kernel pages,
    making sure that no kernel page is shared between different protection
    domains.
    Signed-off-by: default avatarHoang-Nam Nguyen <hnguyen@de.ibm.com>
    e2f81daf
ehca_qp.c 50.1 KB