crypto: marvell - Copy IV vectors by DMA transfers for acipher requests

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Add a TDMA descriptor at the end of the request for copying the
output IV vector via a DMA transfer. This is a good way for offloading
as much as processing as possible to the DMA and the crypto engine.
This is also required for processing multiple cipher requests
in chained mode, otherwise the content of the IV vector would be
overwritten by the last processed request.

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 10:08:34 +02:00 • committed by Herbert Xu

parent b99acf79a1

commit bac8e805a3

4 changed files with 60 additions and 9 deletions

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4

drivers/crypto/marvell/cesa.c

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5

drivers/crypto/marvell/cesa.h

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31

drivers/crypto/marvell/cipher.c

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29

drivers/crypto/marvell/tdma.c

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