diff options
| author | Romain Perier <romain.perier@free-electrons.com> | 2016-06-21 10:08:34 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-06-23 18:14:03 +0800 |
| commit | bac8e805a30dc2a29c3fdde9d822e59c75e710d7 (patch) | |
| tree | 0eb0fdc0a856f601eab7f627ffe10e5312d90a3b /drivers/crypto/marvell/cesa.c | |
| parent | b99acf79a17bf402ea5759ad9d44eba3ed837a59 (diff) | |
crypto: marvell - Copy IV vectors by DMA transfers for acipher requests
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>
Diffstat (limited to 'drivers/crypto/marvell/cesa.c')
| -rw-r--r-- | drivers/crypto/marvell/cesa.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c index 47552c12e8c6..9063f56d8725 100644 --- a/drivers/crypto/marvell/cesa.c +++ b/drivers/crypto/marvell/cesa.c @@ -312,6 +312,10 @@ static int mv_cesa_dev_dma_init(struct mv_cesa_dev *cesa) if (!dma->padding_pool) return -ENOMEM; + dma->iv_pool = dmam_pool_create("cesa_iv", dev, 16, 1, 0); + if (!dma->iv_pool) + return -ENOMEM; + cesa->dma = dma; return 0; |