• Jason Gunthorpe's avatar
    IB{cm, core}: Introduce and use ah_attr copy, move, replace APIs · d97099fe
    Jason Gunthorpe authored
    Introduce AH attribute copy, move and replace APIs to be used by core and
    provider drivers.
    In CM code flow when ah attribute might be re-initialized twice while
    processing incoming request, or initialized once while from path record
    while sending out CM requests. Therefore use rdma_move_ah_attr API to
    handle such scenarios instead of memcpy().
    Provider drivers keeps a copy ah_attr during the lifetime of the ah.
    Therefore, use rdma_replace_ah_attr() which conditionally release
    reference to old ah_attr and holds reference to new attribute whose
    referrence is released when the AH is freed.
    Signed-off-by: default avatarParav Pandit <parav@mellanox.com>
    Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
    Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
verbs.c 67.9 KB