From 4b394a232df78414442778b02ca4a388d947d059 Mon Sep 17 00:00:00 2001 From: Gary R Hook Date: Tue, 26 Jul 2016 19:10:21 -0500 Subject: crypto: ccp - Let a v5 CCP provide the same function as v3 Enable equivalent function on a v5 CCP. Add support for a version 5 CCP which enables AES/XTS/SHA services. Also, more work on the data structures to virtualize functionality. Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-crypto-sha.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'drivers/crypto/ccp/ccp-crypto-sha.c') diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c index 8f36af62fe95..84a652be4274 100644 --- a/drivers/crypto/ccp/ccp-crypto-sha.c +++ b/drivers/crypto/ccp/ccp-crypto-sha.c @@ -4,6 +4,7 @@ * Copyright (C) 2013,2016 Advanced Micro Devices, Inc. * * Author: Tom Lendacky + * Author: Gary R Hook * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -134,7 +135,22 @@ static int ccp_do_sha_update(struct ahash_request *req, unsigned int nbytes, rctx->cmd.engine = CCP_ENGINE_SHA; rctx->cmd.u.sha.type = rctx->type; rctx->cmd.u.sha.ctx = &rctx->ctx_sg; - rctx->cmd.u.sha.ctx_len = sizeof(rctx->ctx); + + switch (rctx->type) { + case CCP_SHA_TYPE_1: + rctx->cmd.u.sha.ctx_len = SHA1_DIGEST_SIZE; + break; + case CCP_SHA_TYPE_224: + rctx->cmd.u.sha.ctx_len = SHA224_DIGEST_SIZE; + break; + case CCP_SHA_TYPE_256: + rctx->cmd.u.sha.ctx_len = SHA256_DIGEST_SIZE; + break; + default: + /* Should never get here */ + break; + } + rctx->cmd.u.sha.src = sg; rctx->cmd.u.sha.src_len = rctx->hash_cnt; rctx->cmd.u.sha.opad = ctx->u.sha.key_len ? -- cgit