OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

crypto: ccree - move MLLI desc. before key load 

Refactor to move the descriptor copying the MLLI line to SRAM
to before the key loading descriptor in preparation to the
introduction of CPP later on.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef 2019-04-18 16:38:38 +03:00 committed by Herbert Xu
parent dd8486c750
commit 4b1d7deb2c
1 changed files with 35 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
drivers/crypto/ccree/cc_cipher.c
View File

@ -558,12 +558,38 @@ static void cc_setup_key_desc(struct crypto_tfm *tfm,
}
}
static void cc_setup_cipher_data(struct crypto_tfm *tfm,
struct cipher_req_ctx *req_ctx,
struct scatterlist *dst,
struct scatterlist *src, unsigned int nbytes,
void *areq, struct cc_hw_desc desc[],
unsigned int *seq_size)
static void cc_setup_mlli_desc(struct crypto_tfm *tfm,
struct cipher_req_ctx *req_ctx,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes, void *areq,
struct cc_hw_desc desc[], unsigned int *seq_size)
{
struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
struct device *dev = drvdata_to_dev(ctx_p->drvdata);
if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI) {
/* bypass */
dev_dbg(dev, " bypass params addr %pad length 0x%X addr 0x%08X\n",
&req_ctx->mlli_params.mlli_dma_addr,
req_ctx->mlli_params.mlli_len,
(unsigned int)ctx_p->drvdata->mlli_sram_addr);
hw_desc_init(&desc[*seq_size]);
set_din_type(&desc[*seq_size], DMA_DLLI,
req_ctx->mlli_params.mlli_dma_addr,
req_ctx->mlli_params.mlli_len, NS_BIT);
set_dout_sram(&desc[*seq_size],
ctx_p->drvdata->mlli_sram_addr,
req_ctx->mlli_params.mlli_len);
set_flow_mode(&desc[*seq_size], BYPASS);
(*seq_size)++;
}
}
static void cc_setup_flow_desc(struct crypto_tfm *tfm,
struct cipher_req_ctx *req_ctx,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes, void *areq,
struct cc_hw_desc desc[], unsigned int *seq_size)
{
struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
struct device *dev = drvdata_to_dev(ctx_p->drvdata);
@ -600,21 +626,6 @@ static void cc_setup_cipher_data(struct crypto_tfm *tfm,
set_flow_mode(&desc[*seq_size], flow_mode);
(*seq_size)++;
} else {
/* bypass */
dev_dbg(dev, " bypass params addr %pad length 0x%X addr 0x%08X\n",
&req_ctx->mlli_params.mlli_dma_addr,
req_ctx->mlli_params.mlli_len,
(unsigned int)ctx_p->drvdata->mlli_sram_addr);
hw_desc_init(&desc[*seq_size]);
set_din_type(&desc[*seq_size], DMA_DLLI,
req_ctx->mlli_params.mlli_dma_addr,
req_ctx->mlli_params.mlli_len, NS_BIT);
set_dout_sram(&desc[*seq_size],
ctx_p->drvdata->mlli_sram_addr,
req_ctx->mlli_params.mlli_len);
set_flow_mode(&desc[*seq_size], BYPASS);
(*seq_size)++;
hw_desc_init(&desc[*seq_size]);
set_din_type(&desc[*seq_size], DMA_MLLI,
ctx_p->drvdata->mlli_sram_addr,
@ -794,11 +805,12 @@ static int cc_cipher_process(struct skcipher_request *req,
/* Setup IV and XEX key used */
cc_setup_state_desc(tfm, req_ctx, ivsize, nbytes, desc, &seq_len);
/* Setup MLLI line, if needed */
cc_setup_mlli_desc(tfm, req_ctx, dst, src, nbytes, req, desc, &seq_len);
/* Setup key */
cc_setup_key_desc(tfm, req_ctx, nbytes, desc, &seq_len);
/* Data processing */
cc_setup_cipher_data(tfm, req_ctx, dst, src, nbytes, req, desc,
&seq_len);
cc_setup_flow_desc(tfm, req_ctx, dst, src, nbytes, req, desc, &seq_len);
/* STAT_PHASE_3: Lock HW and push sequence */