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path: root/drivers/crypto/inside-secure/safexcel.c
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2017-12-22crypto: inside-secure - remove unused parameter in invalidate_cacheOfer Heifetz1-1/+0
The SafeXcel context isn't used in the cache invalidation function. This cosmetic patch removes it (as well as from the function prototype in the header file and when the function is called). Signed-off-by: Ofer Heifetz <oferh@marvell.com> [Antoine: commit message] Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-12-22crypto: inside-secure - free requests even if their handling failedAntoine Ténart1-0/+1
This patch frees the request private data even if its handling failed, as it would never be freed otherwise. Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver") Suggested-by: Ofer Heifetz <oferh@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-08-22crypto: inside-secure - fix an error handling path in safexcel_probe()Christophe Jaillet1-2/+3
'ret' is known to be 0 at this point. If 'safexcel_request_ring_irq()' fails, it returns an error code. Return this value instead of 0 which means success. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-07-18crypto: inside-secure - do not parse the dma mask from dtAntoine Ténart1-4/+1
Remove the dma mask parsing from dt as this should not be encoded into the engine device tree node. Keep the fallback value for now, which should work for the boards already supported upstream. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - only dequeue when neededAntoine Ténart1-3/+3
This force the need_dequeue flag to be unset whenever the dequeue function is called, to avoid calling it when it is not necessary. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - get the backlog before dequeueing the requestAntoine Ténart1-1/+1
Get the backlog before dequeuing the request otherwise we'll miss the first request in line. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - stop requeueing failed requestsAntoine Ténart1-8/+10
This update the dequeue function of the inside-secure safexcel driver so that failed requests aren't requeued when they fail (for whatever reason, which can be because the hw ring is full). Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - use one queue per hw ringAntoine Ténart1-47/+39
Update the inside-secure safexcel driver from using one global queue to one queue per hw ring. This ease the request management and keep the hw in sync with what's done in sw. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - optimize DSE bufferability controlIgal Liberman1-0/+1
Configure the data write bufferability to always buffer packets in the DSE. This change slightly improves performance. Signed-off-by: Igal Liberman <igall@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - enable single WR in DSE configurationIgal Liberman1-0/+1
When enable_single_wr is not enabled, the DSE will only write those parts of a result descriptor that need updating, which means a final result descriptor will be written in 2 or 3 smaller transfers. When enable_single_wr is enabled the DSE will combine these 2-3 updates into one large write transfer, generally improving performance. Signed-off-by: Igal Liberman <igall@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-20crypto: inside-secure - fix incorrect DSE data cache settingAntoine Ténart1-1/+1
Set the correct value to the DSE data cache, using WR_CACHE_3BITS instead of RD_CACHE_3BITS. This fixes an incorrect setting and helps improving performances. Reported-by: Igal Liberman <igall@marvell.com> 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/+930
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>