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

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

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.


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(-)


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