25 static bool sl3516_ce_need_fallback(struct skcipher_request *areq)  in sl3516_ce_need_fallback()  argument
27 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);  in sl3516_ce_need_fallback()
34 	if (areq->cryptlen == 0 || areq->cryptlen % 16) {  in sl3516_ce_need_fallback()
43 	if (sg_nents(areq->src) > MAXDESC / 2) {  in sl3516_ce_need_fallback()
48 	if (sg_nents(areq->dst) > MAXDESC) {  in sl3516_ce_need_fallback()
53 	sg = areq->src;  in sl3516_ce_need_fallback()
69 	sg = areq->dst;  in sl3516_ce_need_fallback()
87 	in_sg = areq->src;  in sl3516_ce_need_fallback()
88 	out_sg = areq->dst;  in sl3516_ce_need_fallback()
103 static int sl3516_ce_cipher_fallback(struct skcipher_request *areq)  in sl3516_ce_cipher_fallback()  argument
105 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);  in sl3516_ce_cipher_fallback()
107 	struct sl3516_ce_cipher_req_ctx *rctx = skcipher_request_ctx(areq);  in sl3516_ce_cipher_fallback()
116 	skcipher_request_set_callback(&rctx->fallback_req, areq->base.flags,  in sl3516_ce_cipher_fallback()
117 				      areq->base.complete, areq->base.data);  in sl3516_ce_cipher_fallback()
118 	skcipher_request_set_crypt(&rctx->fallback_req, areq->src, areq->dst,  in sl3516_ce_cipher_fallback()
119 				   areq->cryptlen, areq->iv);  in sl3516_ce_cipher_fallback()
127 static int sl3516_ce_cipher(struct skcipher_request *areq)  in sl3516_ce_cipher()  argument
129 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);  in sl3516_ce_cipher()
132 	struct sl3516_ce_cipher_req_ctx *rctx = skcipher_request_ctx(areq);  in sl3516_ce_cipher()
146 		crypto_tfm_alg_name(areq->base.tfm),  in sl3516_ce_cipher()
147 		areq->cryptlen,  in sl3516_ce_cipher()
148 		rctx->op_dir, areq->iv, crypto_skcipher_ivsize(tfm),  in sl3516_ce_cipher()
153 	if (areq->src == areq->dst) {  in sl3516_ce_cipher()
154 		nr_sgs = dma_map_sg(ce->dev, areq->src, sg_nents(areq->src),  in sl3516_ce_cipher()
163 		nr_sgs = dma_map_sg(ce->dev, areq->src, sg_nents(areq->src),  in sl3516_ce_cipher()
170 		nr_sgd = dma_map_sg(ce->dev, areq->dst, sg_nents(areq->dst),  in sl3516_ce_cipher()
179 	len = areq->cryptlen;  in sl3516_ce_cipher()
181 	sg = areq->src;  in sl3516_ce_cipher()
189 			areq->cryptlen, i, rctx->t_src[i].len, sg->offset, todo);  in sl3516_ce_cipher()
196 		dev_err(ce->dev, "remaining len %d/%u nr_sgs=%d\n", len, areq->cryptlen, nr_sgs);  in sl3516_ce_cipher()
201 	len = areq->cryptlen;  in sl3516_ce_cipher()
203 	sg = areq->dst;  in sl3516_ce_cipher()
211 			areq->cryptlen, i, rctx->t_dst[i].len, sg->offset, todo);  in sl3516_ce_cipher()
234 		ecb->cipher.algorithm_len = areq->cryptlen;  in sl3516_ce_cipher()
247 	err = sl3516_ce_run_task(ce, rctx, crypto_tfm_alg_name(areq->base.tfm));  in sl3516_ce_cipher()
250 	if (areq->src == areq->dst) {  in sl3516_ce_cipher()
251 		dma_unmap_sg(ce->dev, areq->src, sg_nents(areq->src),  in sl3516_ce_cipher()
254 		dma_unmap_sg(ce->dev, areq->src, sg_nents(areq->src),  in sl3516_ce_cipher()
256 		dma_unmap_sg(ce->dev, areq->dst, sg_nents(areq->dst),  in sl3516_ce_cipher()
265 int sl3516_ce_handle_cipher_request(struct crypto_engine *engine, void *areq)  in sl3516_ce_handle_cipher_request()  argument
268 	struct skcipher_request *breq = container_of(areq, struct skcipher_request, base);  in sl3516_ce_handle_cipher_request()
278 int sl3516_ce_skdecrypt(struct skcipher_request *areq)  in sl3516_ce_skdecrypt()  argument
280 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);  in sl3516_ce_skdecrypt()
282 	struct sl3516_ce_cipher_req_ctx *rctx = skcipher_request_ctx(areq);  in sl3516_ce_skdecrypt()
288 	if (sl3516_ce_need_fallback(areq))  in sl3516_ce_skdecrypt()
289 		return sl3516_ce_cipher_fallback(areq);  in sl3516_ce_skdecrypt()
293 	return crypto_transfer_skcipher_request_to_engine(engine, areq);  in sl3516_ce_skdecrypt()
296 int sl3516_ce_skencrypt(struct skcipher_request *areq)  in sl3516_ce_skencrypt()  argument
298 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);  in sl3516_ce_skencrypt()
300 	struct sl3516_ce_cipher_req_ctx *rctx = skcipher_request_ctx(areq);  in sl3516_ce_skencrypt()
306 	if (sl3516_ce_need_fallback(areq))  in sl3516_ce_skencrypt()
307 		return sl3516_ce_cipher_fallback(areq);  in sl3516_ce_skencrypt()
311 	return crypto_transfer_skcipher_request_to_engine(engine, areq);  in sl3516_ce_skencrypt()