Skip to content

L
linux
Commit 28b1ad90 authored by Gilad Ben-Yossef's avatar Gilad Ben-Yossef Committed by Greg Kroah-Hartman
Browse files
Options

staging: ccree: fold common code into service func 

Fold common code in hash call into service functions.
Signed-off-by: default avatarGilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0d207bd4
Hide whitespace changes
Inline Side-by-side
Showing with 116 additions and 223 deletions
drivers/staging/ccree/ssi_hash.c
View file @ 28b1ad90
......@@ -319,6 +319,84 @@ static void cc_hash_complete(struct device *dev, void *cc_req, int err)
req->base.complete(&req->base, err);
}
static int cc_fin_result(struct cc_hw_desc *desc, struct ahash_request *req,
int idx)
{
struct ahash_req_ctx *state = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm);
u32 digestsize = crypto_ahash_digestsize(tfm);
/* Get final MAC result */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
/* TODO */
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
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);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
idx++;
return idx;
}
static int cc_fin_hmac(struct cc_hw_desc *desc, struct ahash_request *req,
int idx)
{
struct ahash_req_ctx *state = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm);
u32 digestsize = crypto_ahash_digestsize(tfm);
/* store the hash digest result in the context */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_dout_dlli(&desc[idx], state->digest_buff_dma_addr, digestsize,
NS_BIT, 0);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
idx++;
/* Loading hash opad xor key state */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Load the hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_sram(&desc[idx],
cc_digest_len_addr(ctx->drvdata, ctx->hash_mode),
HASH_LEN_SIZE);
set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
/* Memory Barrier: wait for IPAD/OPAD axi write to complete */
hw_desc_init(&desc[idx]);
set_din_no_dma(&desc[idx], 0, 0xfffff0);
set_dout_no_dma(&desc[idx], 0, 0, 1);
idx++;
/* Perform HASH update */
hw_desc_init(&desc[idx]);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
digestsize, NS_BIT);
set_flow_mode(&desc[idx], DIN_HASH);
idx++;
return idx;
}
static int cc_hash_digest(struct ahash_request *req)
{
struct ahash_req_ctx *state = ahash_request_ctx(req);
......@@ -414,62 +492,10 @@ static int cc_hash_digest(struct ahash_request *req)
set_cipher_do(&desc[idx], DO_PAD);
idx++;
/* store the hash digest result in the context */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
digestsize, NS_BIT, 0);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
idx++;
/* Loading hash opad xor key state */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Load the hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_sram(&desc[idx],
cc_digest_len_addr(ctx->drvdata, ctx->hash_mode),
HASH_LEN_SIZE);
set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
/* Memory Barrier: wait for IPAD/OPAD axi write to complete */
hw_desc_init(&desc[idx]);
set_din_no_dma(&desc[idx], 0, 0xfffff0);
set_dout_no_dma(&desc[idx], 0, 0, 1);
idx++;
/* Perform HASH update */
hw_desc_init(&desc[idx]);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
digestsize, NS_BIT);
set_flow_mode(&desc[idx], DIN_HASH);
idx++;
idx = cc_fin_hmac(desc, req, idx);
}
/* Get final MAC result */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
/* TODO */
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
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);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
idx++;
idx = cc_fin_result(desc, req, idx);
rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
if (rc != -EINPROGRESS && rc != -EBUSY) {
......@@ -481,6 +507,33 @@ static int cc_hash_digest(struct ahash_request *req)
return rc;
}
static int cc_restore_hash(struct cc_hw_desc *desc, struct cc_hash_ctx *ctx,
struct ahash_req_ctx *state, int idx)
{
/* Restore hash digest */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Restore hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr,
HASH_LEN_SIZE, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx);
return idx;
}
static int cc_hash_update(struct ahash_request *req)
{
struct ahash_req_ctx *state = ahash_request_ctx(req);
......@@ -527,24 +580,7 @@ static int cc_hash_update(struct ahash_request *req)
cc_req.user_cb = cc_update_complete;
cc_req.user_arg = req;
/* Restore hash digest */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Restore hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr,
HASH_LEN_SIZE, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx);
idx = cc_restore_hash(desc, ctx, state, idx);
/* store the hash digest result in context */
hw_desc_init(&desc[idx]);
......@@ -616,84 +652,12 @@ static int cc_hash_finup(struct ahash_request *req)
cc_req.user_cb = cc_hash_complete;
cc_req.user_arg = req;
/* Restore hash digest */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Restore hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr,
HASH_LEN_SIZE, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
idx = cc_restore_hash(desc, ctx, state, idx);
cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx);
if (is_hmac)
idx = cc_fin_hmac(desc, req, idx);
if (is_hmac) {
/* Store the hash digest result in the context */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
digestsize, NS_BIT, 0);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
idx++;
/* Loading hash OPAD xor key state */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Load the hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_sram(&desc[idx],
cc_digest_len_addr(ctx->drvdata, ctx->hash_mode),
HASH_LEN_SIZE);
set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
/* Memory Barrier: wait for IPAD/OPAD axi write to complete */
hw_desc_init(&desc[idx]);
set_din_no_dma(&desc[idx], 0, 0xfffff0);
set_dout_no_dma(&desc[idx], 0, 0, 1);
idx++;
/* Perform HASH update on last digest */
hw_desc_init(&desc[idx]);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
digestsize, NS_BIT);
set_flow_mode(&desc[idx], DIN_HASH);
idx++;
}
/* Get final MAC result */
hw_desc_init(&desc[idx]);
/* TODO */
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
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);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
idx++;
idx = cc_fin_result(desc, req, idx);
rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
if (rc != -EINPROGRESS && rc != -EBUSY) {
......@@ -748,26 +712,7 @@ static int cc_hash_final(struct ahash_request *req)
cc_req.user_cb = cc_hash_complete;
cc_req.user_arg = req;
/* Restore hash digest */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Restore hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr,
HASH_LEN_SIZE, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx);
idx = cc_restore_hash(desc, ctx, state, idx);
/* "DO-PAD" must be enabled only when writing current length to HW */
hw_desc_init(&desc[idx]);
......@@ -779,62 +724,10 @@ static int cc_hash_final(struct ahash_request *req)
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
idx++;
if (is_hmac) {
/* Store the hash digest result in the context */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
digestsize, NS_BIT, 0);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE0);
idx++;
/* Loading hash OPAD xor key state */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_STATE0);
idx++;
/* Load the hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_din_sram(&desc[idx],
cc_digest_len_addr(ctx->drvdata, ctx->hash_mode),
HASH_LEN_SIZE);
set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
idx++;
/* Memory Barrier: wait for IPAD/OPAD axi write to complete */
hw_desc_init(&desc[idx]);
set_din_no_dma(&desc[idx], 0, 0xfffff0);
set_dout_no_dma(&desc[idx], 0, 0, 1);
idx++;
if (is_hmac)
idx = cc_fin_hmac(desc, req, idx);
/* Perform HASH update on last digest */
hw_desc_init(&desc[idx]);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
digestsize, NS_BIT);
set_flow_mode(&desc[idx], DIN_HASH);
idx++;
}
/* Get final MAC result */
hw_desc_init(&desc[idx]);
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
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);
cc_set_endianity(ctx->hash_mode, &desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
idx++;
idx = cc_fin_result(desc, req, idx);
rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base);
if (rc != -EINPROGRESS && rc != -EBUSY) {
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7