Remove a no longer needed abstraction around ccree hash crypto API
internals that used to allow same ops to be used in synchronous and
asynchronous fashion.
Signed-off-by: Gilad Ben-Yossef <gi...@benyossef.com>
---
drivers/staging/ccree/ssi_hash.c | 260 ++++++++++++---------------------------
1 file changed, 76 insertions(+), 184 deletions(-)
diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/ssi_hash.c
index 0c4f3db..a762eef 100644
--- a/drivers/staging/ccree/ssi_hash.c
+++ b/drivers/staging/ccree/ssi_hash.c
@@ -426,13 +426,15 @@ static void ssi_hash_complete(struct device *dev, void
*ssi_req)
req->base.complete(&req->base, 0);
}
-static int ssi_hash_digest(struct ahash_req_ctx *state,
- struct ssi_hash_ctx *ctx,
- unsigned int digestsize,
- struct scatterlist *src,
- unsigned int nbytes, u8 *result,
- void *async_req)
+static int ssi_ahash_digest(struct ahash_request *req)
{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ struct scatterlist *src = req->src;
+ unsigned int nbytes = req->nbytes;
+ u8 *result = req->result;
struct device *dev = drvdata_to_dev(ctx->drvdata);
bool is_hmac = ctx->is_hmac;
struct ssi_crypto_req ssi_req = {};
@@ -460,11 +462,9 @@ static int ssi_hash_digest(struct ahash_req_ctx *state,
return -ENOMEM;
}
- if (async_req) {
- /* Setup DX request structure */
- ssi_req.user_cb = (void *)ssi_hash_digest_complete;
- ssi_req.user_arg = (void *)async_req;
- }
+ /* Setup DX request structure */
+ ssi_req.user_cb = ssi_hash_digest_complete;
+ ssi_req.user_arg = req;
/* If HMAC then load hash IPAD xor key, if HASH then load initial
* digest
@@ -563,44 +563,32 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
set_cipher_mode(&desc[idx], ctx->hw_mode);
/* TODO */
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
- NS_BIT, (async_req ? 1 : 0));
- if (async_req)
- set_queue_last_ind(&desc[idx]);
+ NS_BIT, 1);
+ set_queue_last_ind(&desc[idx]);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]);
idx++;
- if (async_req) {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
- if (rc != -EINPROGRESS) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- ssi_hash_unmap_result(dev, state, digestsize, result);
- ssi_hash_unmap_request(dev, state, ctx);
- }
- } else {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
- if (rc) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- } else {
- cc_unmap_hash_request(dev, state, src, false);
- }
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (rc != -EINPROGRESS) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, src, true);
ssi_hash_unmap_result(dev, state, digestsize, result);
ssi_hash_unmap_request(dev, state, ctx);
}
return rc;
}
-static int ssi_hash_update(struct ahash_req_ctx *state,
- struct ssi_hash_ctx *ctx,
- unsigned int block_size,
- struct scatterlist *src,
- unsigned int nbytes,
- void *async_req)
+static int ssi_ahash_update(struct ahash_request *req)
{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base);
+ struct scatterlist *src = req->src;
+ unsigned int nbytes = req->nbytes;
struct device *dev = drvdata_to_dev(ctx->drvdata);
struct ssi_crypto_req ssi_req = {};
struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
@@ -628,11 +616,9 @@ static int ssi_hash_update(struct ahash_req_ctx *state,
return -ENOMEM;
}
- if (async_req) {
- /* Setup DX request structure */
- ssi_req.user_cb = (void *)ssi_hash_update_complete;
- ssi_req.user_arg = async_req;
- }
+ /* Setup DX request structure */
+ ssi_req.user_cb = ssi_hash_update_complete;
+ ssi_req.user_arg = req;
/* Restore hash digest */
hw_desc_init(&desc[idx]);
@@ -666,39 +652,29 @@ static int ssi_hash_update(struct ahash_req_ctx *state,
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_dout_dlli(&desc[idx], state->digest_bytes_len_dma_addr,
- HASH_LEN_SIZE, NS_BIT, (async_req ? 1 : 0));
- if (async_req)
- set_queue_last_ind(&desc[idx]);
+ HASH_LEN_SIZE, NS_BIT, 1);
+ set_queue_last_ind(&desc[idx]);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE1);
idx++;
- if (async_req) {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
- if (rc != -EINPROGRESS) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- }
- } else {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
- if (rc) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- } else {
- cc_unmap_hash_request(dev, state, src, false);
- }
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (rc != -EINPROGRESS) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, src, true);
}
return rc;
}
-static int ssi_hash_finup(struct ahash_req_ctx *state,
- struct ssi_hash_ctx *ctx,
- unsigned int digestsize,
- struct scatterlist *src,
- unsigned int nbytes,
- u8 *result,
- void *async_req)
+static int ssi_ahash_finup(struct ahash_request *req)
{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ struct scatterlist *src = req->src;
+ unsigned int nbytes = req->nbytes;
+ u8 *result = req->result;
struct device *dev = drvdata_to_dev(ctx->drvdata);
bool is_hmac = ctx->is_hmac;
struct ssi_crypto_req ssi_req = {};
@@ -718,11 +694,9 @@ static int ssi_hash_finup(struct ahash_req_ctx *state,
return -ENOMEM;
}
- if (async_req) {
- /* Setup DX request structure */
- ssi_req.user_cb = (void *)ssi_hash_complete;
- ssi_req.user_arg = async_req;
- }
+ /* Setup DX request structure */
+ ssi_req.user_cb = ssi_hash_complete;
+ ssi_req.user_arg = req;
/* Restore hash digest */
hw_desc_init(&desc[idx]);
@@ -794,9 +768,8 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
hw_desc_init(&desc[idx]);
/* TODO */
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
- NS_BIT, (async_req ? 1 : 0));
- if (async_req)
- set_queue_last_ind(&desc[idx]);
+ NS_BIT, 1);
+ set_queue_last_ind(&desc[idx]);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
@@ -804,36 +777,24 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
set_cipher_mode(&desc[idx], ctx->hw_mode);
idx++;
- if (async_req) {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
- if (rc != -EINPROGRESS) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- ssi_hash_unmap_result(dev, state, digestsize, result);
- }
- } else {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
- if (rc) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- ssi_hash_unmap_result(dev, state, digestsize, result);
- } else {
- cc_unmap_hash_request(dev, state, src, false);
- ssi_hash_unmap_result(dev, state, digestsize, result);
- ssi_hash_unmap_request(dev, state, ctx);
- }
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (rc != -EINPROGRESS) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
}
return rc;
}
-static int ssi_hash_final(struct ahash_req_ctx *state,
- struct ssi_hash_ctx *ctx,
- unsigned int digestsize,
- struct scatterlist *src,
- unsigned int nbytes,
- u8 *result,
- void *async_req)
+static int ssi_ahash_final(struct ahash_request *req)
{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ u32 digestsize = crypto_ahash_digestsize(tfm);
+ struct scatterlist *src = req->src;
+ unsigned int nbytes = req->nbytes;
+ u8 *result = req->result;
struct device *dev = drvdata_to_dev(ctx->drvdata);
bool is_hmac = ctx->is_hmac;
struct ssi_crypto_req ssi_req = {};
@@ -854,11 +815,9 @@ static int ssi_hash_final(struct ahash_req_ctx *state,
return -ENOMEM;
}
- if (async_req) {
- /* Setup DX request structure */
- ssi_req.user_cb = (void *)ssi_hash_complete;
- ssi_req.user_arg = async_req;
- }
+ /* Setup DX request structure */
+ ssi_req.user_cb = ssi_hash_complete;
+ ssi_req.user_arg = req;
/* Restore hash digest */
hw_desc_init(&desc[idx]);
@@ -939,9 +898,8 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
/* Get final MAC result */
hw_desc_init(&desc[idx]);
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
- NS_BIT, (async_req ? 1 : 0));
- if (async_req)
- set_queue_last_ind(&desc[idx]);
+ NS_BIT, 1);
+ set_queue_last_ind(&desc[idx]);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
@@ -949,34 +907,25 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
set_cipher_mode(&desc[idx], ctx->hw_mode);
idx++;
- if (async_req) {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
- if (rc != -EINPROGRESS) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- ssi_hash_unmap_result(dev, state, digestsize, result);
- }
- } else {
- rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
- if (rc) {
- dev_err(dev, "send_request() failed (rc=%d)\n", rc);
- cc_unmap_hash_request(dev, state, src, true);
- ssi_hash_unmap_result(dev, state, digestsize, result);
- } else {
- cc_unmap_hash_request(dev, state, src, false);
- ssi_hash_unmap_result(dev, state, digestsize, result);
- ssi_hash_unmap_request(dev, state, ctx);
- }
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (rc != -EINPROGRESS) {
+ dev_err(dev, "send_request() failed (rc=%d)\n", rc);
+ cc_unmap_hash_request(dev, state, src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
}
return rc;
}
-static int ssi_hash_init(struct ahash_req_ctx *state, struct ssi_hash_ctx *ctx)
+static int ssi_ahash_init(struct ahash_request *req)
{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
struct device *dev = drvdata_to_dev(ctx->drvdata);
- state->xcbc_count = 0;
+ dev_dbg(dev, "===== init (%d) ====\n", req->nbytes);
+ state->xcbc_count = 0;
ssi_hash_map_request(dev, state, ctx);
return 0;
@@ -1713,63 +1662,6 @@ static int ssi_mac_digest(struct ahash_request *req)
return rc;
}
-//ahash wrap functions
-static int ssi_ahash_digest(struct ahash_request *req)
-{
- struct ahash_req_ctx *state = ahash_request_ctx(req);
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
- u32 digestsize = crypto_ahash_digestsize(tfm);
-
- return ssi_hash_digest(state, ctx, digestsize, req->src, req->nbytes,
- req->result, (void *)req);
-}
-
-static int ssi_ahash_update(struct ahash_request *req)
-{
- struct ahash_req_ctx *state = ahash_request_ctx(req);
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
- unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base);
-
- return ssi_hash_update(state, ctx, block_size, req->src, req->nbytes,
- (void *)req);
-}
-
-static int ssi_ahash_finup(struct ahash_request *req)
-{
- struct ahash_req_ctx *state = ahash_request_ctx(req);
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
- u32 digestsize = crypto_ahash_digestsize(tfm);
-
- return ssi_hash_finup(state, ctx, digestsize, req->src, req->nbytes,
- req->result, (void *)req);
-}
-
-static int ssi_ahash_final(struct ahash_request *req)
-{
- struct ahash_req_ctx *state = ahash_request_ctx(req);
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
- u32 digestsize = crypto_ahash_digestsize(tfm);
-
- return ssi_hash_final(state, ctx, digestsize, req->src, req->nbytes,
- req->result, (void *)req);
-}
-
-static int ssi_ahash_init(struct ahash_request *req)
-{
- struct ahash_req_ctx *state = ahash_request_ctx(req);
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
- struct device *dev = drvdata_to_dev(ctx->drvdata);
-
- dev_dbg(dev, "===== init (%d) ====\n", req->nbytes);
-
- return ssi_hash_init(state, ctx);
-}
-
static int ssi_ahash_export(struct ahash_request *req, void *out)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
@@ -1829,7 +1721,7 @@ static int ssi_ahash_import(struct ahash_request *req,
const void *in)
/* call init() to allocate bufs if the user hasn't */
if (!state->digest_buff) {
- rc = ssi_hash_init(state, ctx);
+ rc = ssi_ahash_init(req);
if (rc)
goto out;
}
--
2.7.4
