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
