08 Dec, 2015

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20 Oct, 2014

1 commit


24 Sep, 2014

1 commit

  • The Keystone Navigator DMA driver sets up the dma channels and flows for
    the QMSS(Queue Manager SubSystem) who triggers the actual data movements
    across clients using destination queues. Every client modules like
    NETCP(Network Coprocessor), SRIO(Serial Rapid IO) and CRYPTO
    Engines has its own instance of packet dma hardware. QMSS has also
    an internal packet DMA module which is used as an infrastructure
    DMA with zero copy.

    Initially this driver was proposed as DMA engine driver but since the
    hardware is not typical DMA engine and hence doesn't comply with typical
    DMA engine driver needs, that approach was naked. Link to that
    discussion -
    https://lkml.org/lkml/2014/3/18/340

    As aligned, now we pair the Navigator DMA with its companion Navigator
    QMSS subsystem driver.

    Cc: Greg Kroah-Hartman
    Cc: Kumar Gala
    Cc: Olof Johansson
    Cc: Arnd Bergmann
    Cc: Grant Likely
    Cc: Rob Herring
    Cc: Mark Rutland
    Signed-off-by: Sandeep Nair
    Signed-off-by: Santosh Shilimkar

    Santosh Shilimkar