3  * sun8i-ss-cipher.c - hardware cryptographic offloader for
20 #include "sun8i-ss.h"
55 	/* SS need same numbers of SG (with same length) for source and destination */  in sun8i_ss_need_fallback()
99 	struct sun8i_ss_dev *ss = op->ss;  in sun8i_ss_cipher()  local
113 	dev_dbg(ss->dev, "%s %s %u %x IV(%p %u) key=%u\n", __func__,  in sun8i_ss_cipher()
123 	rctx->op_mode = ss->variant->op_mode[algt->ss_blockmode];  in sun8i_ss_cipher()
124 	rctx->method = ss->variant->alg_cipher[algt->ss_algo_id];  in sun8i_ss_cipher()
127 	rctx->p_key = dma_map_single(ss->dev, op->key, op->keylen, DMA_TO_DEVICE);  in sun8i_ss_cipher()
128 	if (dma_mapping_error(ss->dev, rctx->p_key)) {  in sun8i_ss_cipher()
129 		dev_err(ss->dev, "Cannot DMA MAP KEY\n");  in sun8i_ss_cipher()
153 		rctx->p_iv = dma_map_single(ss->dev, rctx->biv, rctx->ivlen,  in sun8i_ss_cipher()
155 		if (dma_mapping_error(ss->dev, rctx->p_iv)) {  in sun8i_ss_cipher()
156 			dev_err(ss->dev, "Cannot DMA MAP IV\n");  in sun8i_ss_cipher()
162 		nr_sgs = dma_map_sg(ss->dev, areq->src, sg_nents(areq->src),  in sun8i_ss_cipher()
165 			dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs);  in sun8i_ss_cipher()
171 		nr_sgs = dma_map_sg(ss->dev, areq->src, sg_nents(areq->src),  in sun8i_ss_cipher()
174 			dev_err(ss->dev, "Invalid sg number %d\n", nr_sgs);  in sun8i_ss_cipher()
178 		nr_sgd = dma_map_sg(ss->dev, areq->dst, sg_nents(areq->dst),  in sun8i_ss_cipher()
181 			dev_err(ss->dev, "Invalid sg number %d\n", nr_sgd);  in sun8i_ss_cipher()
196 		dev_dbg(ss->dev, "%s total=%u SGS(%d %u off=%d) todo=%u\n", __func__,  in sun8i_ss_cipher()
204 		dev_err(ss->dev, "remaining len %d\n", len);  in sun8i_ss_cipher()
218 		dev_dbg(ss->dev, "%s total=%u SGD(%d %u off=%d) todo=%u\n", __func__,  in sun8i_ss_cipher()
226 		dev_err(ss->dev, "remaining len %d\n", len);  in sun8i_ss_cipher()
231 	err = sun8i_ss_run_task(ss, rctx, crypto_tfm_alg_name(areq->base.tfm));  in sun8i_ss_cipher()
235 		dma_unmap_sg(ss->dev, areq->src, nr_sgs, DMA_BIDIRECTIONAL);  in sun8i_ss_cipher()
237 		dma_unmap_sg(ss->dev, areq->src, nr_sgs, DMA_TO_DEVICE);  in sun8i_ss_cipher()
238 		dma_unmap_sg(ss->dev, areq->dst, nr_sgd, DMA_FROM_DEVICE);  in sun8i_ss_cipher()
243 		dma_unmap_single(ss->dev, rctx->p_iv, rctx->ivlen,  in sun8i_ss_cipher()
261 	dma_unmap_single(ss->dev, rctx->p_key, op->keylen, DMA_TO_DEVICE);  in sun8i_ss_cipher()
293 	e = sun8i_ss_get_engine_number(op->ss);  in sun8i_ss_skdecrypt()
294 	engine = op->ss->flows[e].engine;  in sun8i_ss_skdecrypt()
314 	e = sun8i_ss_get_engine_number(op->ss);  in sun8i_ss_skencrypt()
315 	engine = op->ss->flows[e].engine;  in sun8i_ss_skencrypt()
333 	op->ss = algt->ss;  in sun8i_ss_cipher_init()
337 		dev_err(op->ss->dev, "ERROR: Cannot allocate fallback for %s %ld\n",  in sun8i_ss_cipher_init()
346 	dev_info(op->ss->dev, "Fallback for %s is %s\n",  in sun8i_ss_cipher_init()
354 	err = pm_runtime_get_sync(op->ss->dev);  in sun8i_ss_cipher_init()
356 		dev_err(op->ss->dev, "pm error %d\n", err);  in sun8i_ss_cipher_init()
372 	pm_runtime_put_sync(op->ss->dev);  in sun8i_ss_cipher_exit()
379 	struct sun8i_ss_dev *ss = op->ss;  in sun8i_ss_aes_setkey()  local
389 		dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen);  in sun8i_ss_aes_setkey()
408 	struct sun8i_ss_dev *ss = op->ss;  in sun8i_ss_des3_setkey()  local
411 		dev_dbg(ss->dev, "Invalid keylen %u\n", keylen);  in sun8i_ss_des3_setkey()