Add support for following AEAD algos.
 GCM,CCM,RFC4106,RFC4309,authenc(hmac(shaXXX),cbc(aes)).
Reviewed-by: NStephan Mueller <smueller@chronox.de>
Signed-off-by: NHarsh Jain <harsh@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Move request specific data in request context.
Signed-off-by: NHarsh Jain <harsh@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Use SHASH_DESC_ON_STACK macro to allocate memory for ipad/opad
calculation.
Signed-off-by: NHarsh Jain <harsh@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Destination buffer size passed to hardware should not be greater
than crypto operation output.
Signed-off-by: NHarsh Jain <harsh@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Move reverse round key calculation logic in setkey operation.
Signed-off-by: NHarsh Jain <harsh@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Remove malloc/free in hash operation and allocate
 memory in chcr_ahash_req_ctx structure.
Signed-off-by: NJitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fixes 324429d7, Unchecked dereference inside function.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NJitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Added new structure chcr_wr to populate Work Request Header.
Signed-off-by: NJitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Moves get_aes_decrypt_key function to .c file and declare inline for
"aes_ks_subword"
Signed-off-by: NJitendra Lulla <JLULLA@chelsio.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

Fixes the following sparse warning:

drivers/crypto/chelsio/chcr_algo.c:593:5: warning:
 symbol 'cxgb4_is_crypto_q_full' was not declared. Should it be static?
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The Chelsio's Crypto Hardware can perform the following operations:
SHA1, SHA224, SHA256, SHA384 and SHA512, HMAC(SHA1), HMAC(SHA224),
HMAC(SHA256), HMAC(SHA384), HAMC(SHA512), AES-128-CBC, AES-192-CBC,
AES-256-CBC, AES-128-XTS, AES-256-XTS

This patch implements the driver for above mentioned features. This
driver is an Upper Layer Driver which is attached to Chelsio's LLD
(cxgb4) and uses the queue allocated by the LLD for sending the crypto
requests to the Hardware and receiving the responses from it.

The crypto operations can be performed by Chelsio's hardware from the
userspace applications and/or from within the kernel space using the
kernel's crypto API.

The above mentioned crypto features have been tested using kernel's
tests mentioned in testmgr.h. They also have been tested from user
space using libkcapi and Openssl.
Signed-off-by: NAtul Gupta <atul.gupta@chelsio.com>
Signed-off-by: NHariprasad Shenai <hariprasad@chelsio.com>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>