crypto: marvell - Add load balancing between engines

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This commits adds support for fine grained load balancing on
multi-engine IPs. The engine is pre-selected based on its current load
and on the weight of the crypto request that is about to be processed.
The global crypto queue is also moved to each engine. These changes are
required to allow chaining crypto requests at the DMA level. By using
a crypto queue per engine, we make sure that we keep the state of the
tdma chain synchronized with the crypto queue. We also reduce contention
on 'cesa_dev->lock' and improve parallelism.

Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Romain Perier 2016-06-21 10:08:38 +02:00 • committed by Herbert Xu

parent 2786cee8e5

commit bf8f91e711

4 changed files with 84 additions and 86 deletions

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34

drivers/crypto/marvell/cesa.c

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29

drivers/crypto/marvell/cesa.h

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61

drivers/crypto/marvell/cipher.c

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50

drivers/crypto/marvell/hash.c

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