diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/mv_cesa.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index 096f9ff..8891e2e 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -39,6 +39,7 @@ enum engine_status { * @sg_src_left: bytes left in src to process (scatter list) * @src_start: offset to add to src start position (scatter list) * @crypt_len: length of current crypt process + * @hw_nbytes: total bytes to process in hw for this request * @sg_dst_left: bytes left dst to process in this scatter list * @dst_start: offset to add to dst start position (scatter list) * @total_req_bytes: total number of bytes processed (request). @@ -55,6 +56,7 @@ struct req_progress { int sg_src_left; int src_start; int crypt_len; + int hw_nbytes; /* dst mostly */ int sg_dst_left; int dst_start; @@ -71,7 +73,7 @@ struct crypto_priv { spinlock_t lock; struct crypto_queue queue; enum engine_status eng_st; - struct ablkcipher_request *cur_req; + struct crypto_async_request *cur_req; struct req_progress p; int max_req_size; int sram_size; @@ -175,18 +177,18 @@ static void copy_src_to_buf(struct req_progress *p, char *dbuf, int len) } } -static void setup_data_in(struct ablkcipher_request *req) +static void setup_data_in(void) { struct req_progress *p = &cpg->p; p->crypt_len = - min((int)req->nbytes - p->total_req_bytes, cpg->max_req_size); + min(p->hw_nbytes - p->total_req_bytes, cpg->max_req_size); copy_src_to_buf(p, cpg->sram + SRAM_DATA_IN_START, p->crypt_len); } static void mv_process_current_q(int first_block) { - struct ablkcipher_request *req = cpg->cur_req; + struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req); struct mv_ctx *ctx = crypto_tfm_ctx(req->base.tfm); struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req); struct sec_accel_config op; @@ -229,7 +231,7 @@ static void mv_process_current_q(int first_block) ENC_P_DST(SRAM_DATA_OUT_START); op.enc_key_p = SRAM_DATA_KEY_P; - setup_data_in(req); + setup_data_in(); op.enc_len = cpg->p.crypt_len; memcpy(cpg->sram + SRAM_CONFIG, &op, sizeof(struct sec_accel_config)); @@ -246,7 +248,7 @@ static void mv_process_current_q(int first_block) static void mv_crypto_algo_completion(void) { - struct ablkcipher_request *req = cpg->cur_req; + struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req); struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req); if (req_ctx->op != COP_AES_CBC) @@ -257,7 +259,7 @@ static void mv_crypto_algo_completion(void) static void dequeue_complete_req(void) { - struct ablkcipher_request *req = cpg->cur_req; + struct crypto_async_request *req = cpg->cur_req; void *buf; int ret; int need_copy_len = cpg->p.crypt_len; @@ -289,7 +291,7 @@ static void dequeue_complete_req(void) } while (need_copy_len > 0); BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE); - if (cpg->p.total_req_bytes < req->nbytes) { + if (cpg->p.total_req_bytes < cpg->p.hw_nbytes) { /* process next scatter list entry */ cpg->eng_st = ENGINE_BUSY; mv_process_current_q(0); @@ -299,7 +301,7 @@ static void dequeue_complete_req(void) mv_crypto_algo_completion(); cpg->eng_st = ENGINE_IDLE; local_bh_disable(); - req->base.complete(&req->base, 0); + req->complete(req, 0); local_bh_enable(); } } @@ -323,16 +325,19 @@ static int count_sgs(struct scatterlist *sl, unsigned int total_bytes) static void mv_enqueue_new_req(struct ablkcipher_request *req) { + struct req_progress *p = &cpg->p; int num_sgs; - cpg->cur_req = req; - memset(&cpg->p, 0, sizeof(struct req_progress)); + cpg->cur_req = &req->base; + memset(p, 0, sizeof(struct req_progress)); + p->hw_nbytes = req->nbytes; num_sgs = count_sgs(req->src, req->nbytes); - sg_miter_start(&cpg->p.src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG); + sg_miter_start(&p->src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG); num_sgs = count_sgs(req->dst, req->nbytes); - sg_miter_start(&cpg->p.dst_sg_it, req->dst, num_sgs, SG_MITER_TO_SG); + sg_miter_start(&p->dst_sg_it, req->dst, num_sgs, SG_MITER_TO_SG); + mv_process_current_q(1); } @@ -378,13 +383,13 @@ static int queue_manag(void *data) return 0; } -static int mv_handle_req(struct ablkcipher_request *req) +static int mv_handle_req(struct crypto_async_request *req) { unsigned long flags; int ret; spin_lock_irqsave(&cpg->lock, flags); - ret = ablkcipher_enqueue_request(&cpg->queue, req); + ret = crypto_enqueue_request(&cpg->queue, req); spin_unlock_irqrestore(&cpg->lock, flags); wake_up_process(cpg->queue_th); return ret; @@ -397,7 +402,7 @@ static int mv_enc_aes_ecb(struct ablkcipher_request *req) req_ctx->op = COP_AES_ECB; req_ctx->decrypt = 0; - return mv_handle_req(req); + return mv_handle_req(&req->base); } static int mv_dec_aes_ecb(struct ablkcipher_request *req) @@ -409,7 +414,7 @@ static int mv_dec_aes_ecb(struct ablkcipher_request *req) req_ctx->decrypt = 1; compute_aes_dec_key(ctx); - return mv_handle_req(req); + return mv_handle_req(&req->base); } static int mv_enc_aes_cbc(struct ablkcipher_request *req) @@ -419,7 +424,7 @@ static int mv_enc_aes_cbc(struct ablkcipher_request *req) req_ctx->op = COP_AES_CBC; req_ctx->decrypt = 0; - return mv_handle_req(req); + return mv_handle_req(&req->base); } static int mv_dec_aes_cbc(struct ablkcipher_request *req) @@ -431,7 +436,7 @@ static int mv_dec_aes_cbc(struct ablkcipher_request *req) req_ctx->decrypt = 1; compute_aes_dec_key(ctx); - return mv_handle_req(req); + return mv_handle_req(&req->base); } static int mv_cra_init(struct crypto_tfm *tfm) |