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path: root/drivers/crypto/inside-secure/safexcel_ring.c (follow)
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2018-07-20crypto: inside-secure - switch to SPDX identifiersAntoine Tenart1-4/+1
Use the appropriate SPDX license identifiers and drop the license text. This patch is only cosmetic. Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-07-09crypto: inside-secure - remove request list to improve performanceOfer Heifetz1-12/+36
This patch main goal is to improve driver performance by moving the crypto request from a list to a RDR ring shadow. This is possible since there is one producer and one consume for this RDR request shadow and one ring descriptor is left unused. Doing this change eliminates the use of spinlock when accessing the descriptor ring and the need to dynamicaly allocate memory per crypto request. The crypto request is placed in the first RDR shadow descriptor only if there are enough descriptors, when the result handler is invoked, it fetches the first result descriptor from RDR shadow. Signed-off-by: Ofer Heifetz <oferh@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-07-09crypto: inside-secure - dynamic ring configuration allocationOfer Heifetz1-5/+5
The Inside Secure SafeXcel driver currently uses 4 rings, but the eip197d engines has 8 of them. This patch updates the driver so that rings are allocated dynamically based on the number of available rings supported by a given engine. Signed-off-by: Ofer Heifetz <oferh@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - use the base_end pointer in ring rollbackAntoine Ténart1-1/+1
A base_end pointer is set and provided. Use it in the ring rollback function to avoid using build-in defines. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-10crypto: inside-secure - add SafeXcel EIP197 crypto engine driverAntoine Ténart1-0/+157
Add support for Inside Secure SafeXcel EIP197 cryptographic engine, which can be found on Marvell Armada 7k and 8k boards. This driver currently implements: ecb(aes), cbc(aes), sha1, sha224, sha256 and hmac(sah1) algorithms. Two firmwares are needed for this engine to work. Their are mostly used for more advanced operations than the ones supported (as of now), but we still need them to pass the data to the internal cryptographic engine. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>