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    Subject[PATCH RFC 00/10] crypto: engine: permit to batch requests
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    Hello

    The sun8i-ce hardware can work on multiple requests in one batch.
    For this it use a task descriptor, and chain them.
    For the moment, the driver does not use this mechanism and do requests
    one at a time and issue an irq for each.

    Using the chaning will permit to issue less interrupts, and increase
    thoughput.

    But the crypto/engine can enqueue lots of requests but can ran them only
    one by one.

    This serie introduce a way to batch requests in crypto/engine by
    - setting a batch limit (1 by default)
    - refactor the prepare/unprepare code to permit to have x requests
    prepared/unprepared at the same time.

    For testing the serie, the selftest are not enough, since it issue
    request one at a time.
    I have used LUKS for testing it.

    Please give me what you think about this serie, specially maintainers
    which have hardware with the same kind of capability.

    Regards

    Corentin Labbe (10):
    crypto: sun8i-ce: move iv data to request context
    crypto: sun8i-ce: increase task list size
    crypto: sun8i-ce: split into prepare/run/unprepare
    crypto: sun8i-ce: introduce the slot number
    crypto: engine: transform cur_req in an array
    crypto: engine: introduce ct
    crypto: sun8i-ce: handle slot > 0
    crypto: engine: add slot parameter
    crypto: engine: permit to batch requests
    crypto: sun8i-ce: use the new batch mechanism

    crypto/crypto_engine.c | 76 +++++++----
    .../allwinner/sun8i-ce/sun8i-ce-cipher.c | 121 +++++++++++++-----
    .../crypto/allwinner/sun8i-ce/sun8i-ce-core.c | 17 ++-
    drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h | 17 ++-
    drivers/crypto/omap-aes-gcm.c | 2 +-
    drivers/crypto/omap-aes.c | 4 +-
    drivers/crypto/omap-des.c | 4 +-
    drivers/crypto/stm32/stm32-cryp.c | 8 +-
    drivers/crypto/stm32/stm32-hash.c | 4 +-
    include/crypto/engine.h | 27 +++-
    10 files changed, 201 insertions(+), 79 deletions(-)

    --
    2.24.1

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