152 	struct bfin_crypto_crc_reqctx *ctx = ahash_request_ctx(req);  in bfin_crypto_crc_init()  local
155 	dev_dbg(ctx->crc->dev, "crc_init\n");  in bfin_crypto_crc_init()
164 		dev_dbg(ctx->crc->dev, "init: requested sg list is too big > %d\n",  in bfin_crypto_crc_init()
169 	ctx->crc = crc;  in bfin_crypto_crc_init()
170 	ctx->bufnext_len = 0;  in bfin_crypto_crc_init()
171 	ctx->buflast_len = 0;  in bfin_crypto_crc_init()
172 	ctx->sg_buflen = 0;  in bfin_crypto_crc_init()
173 	ctx->total = 0;  in bfin_crypto_crc_init()
174 	ctx->flag = 0;  in bfin_crypto_crc_init()
179 	dev_dbg(ctx->crc->dev, "init: digest size: %d\n",  in bfin_crypto_crc_init()
188 	struct bfin_crypto_crc_reqctx *ctx = ahash_request_ctx(crc->req);  in bfin_crypto_crc_config_dma()  local
196 	dma_map_sg(crc->dev, ctx->sg, ctx->sg_nents, DMA_TO_DEVICE);  in bfin_crypto_crc_config_dma()
198 	for_each_sg(ctx->sg, sg, ctx->sg_nents, j) {  in bfin_crypto_crc_config_dma()
202 			dma_count = sg_dma_len(sg) - ctx->bufnext_len;  in bfin_crypto_crc_config_dma()
272 	if (ctx->bufnext_len && (ctx->flag == CRC_CRYPTO_STATE_FINALUPDATE ||  in bfin_crypto_crc_config_dma()
273 		ctx->flag == CRC_CRYPTO_STATE_FINISH)) {  in bfin_crypto_crc_config_dma()
274 		crc->sg_cpu[i].start_addr = dma_map_single(crc->dev, ctx->bufnext,  in bfin_crypto_crc_config_dma()
303 	struct bfin_crypto_crc_reqctx *ctx;  in bfin_crypto_crc_handle_queue()  local
332 	ctx = ahash_request_ctx(req);  in bfin_crypto_crc_handle_queue()
333 	ctx->sg = NULL;  in bfin_crypto_crc_handle_queue()
334 	ctx->sg_buflen = 0;  in bfin_crypto_crc_handle_queue()
335 	ctx->sg_nents = 0;  in bfin_crypto_crc_handle_queue()
338 						ctx->flag, req->nbytes);  in bfin_crypto_crc_handle_queue()
340 	if (ctx->flag == CRC_CRYPTO_STATE_FINISH) {  in bfin_crypto_crc_handle_queue()
341 		if (ctx->bufnext_len == 0) {  in bfin_crypto_crc_handle_queue()
347 		memset(ctx->bufnext + ctx->bufnext_len, 0,  in bfin_crypto_crc_handle_queue()
348 				CHKSUM_DIGEST_SIZE - ctx->bufnext_len);  in bfin_crypto_crc_handle_queue()
351 		if (ctx->bufnext_len + req->nbytes < CHKSUM_DIGEST_SIZE) {  in bfin_crypto_crc_handle_queue()
352 			memcpy(ctx->bufnext + ctx->bufnext_len,  in bfin_crypto_crc_handle_queue()
354 			ctx->bufnext_len += req->nbytes;  in bfin_crypto_crc_handle_queue()
355 			if (ctx->flag == CRC_CRYPTO_STATE_FINALUPDATE &&  in bfin_crypto_crc_handle_queue()
356 				ctx->bufnext_len) {  in bfin_crypto_crc_handle_queue()
364 		if (ctx->bufnext_len) {  in bfin_crypto_crc_handle_queue()
366 			ctx->buflast_len = ctx->bufnext_len;  in bfin_crypto_crc_handle_queue()
367 			memcpy(ctx->buflast, ctx->bufnext, ctx->buflast_len);  in bfin_crypto_crc_handle_queue()
369 			nsg = ctx->sg_buflen ? 2 : 1;  in bfin_crypto_crc_handle_queue()
370 			sg_init_table(ctx->bufsl, nsg);  in bfin_crypto_crc_handle_queue()
371 			sg_set_buf(ctx->bufsl, ctx->buflast, ctx->buflast_len);  in bfin_crypto_crc_handle_queue()
373 				scatterwalk_sg_chain(ctx->bufsl, nsg,  in bfin_crypto_crc_handle_queue()
375 			ctx->sg = ctx->bufsl;  in bfin_crypto_crc_handle_queue()
377 			ctx->sg = req->src;  in bfin_crypto_crc_handle_queue()
380 		nsg = ctx->sg_nents = sg_count(ctx->sg);  in bfin_crypto_crc_handle_queue()
381 		ctx->sg_buflen = ctx->buflast_len + req->nbytes;  in bfin_crypto_crc_handle_queue()
382 		ctx->bufnext_len = ctx->sg_buflen % 4;  in bfin_crypto_crc_handle_queue()
383 		ctx->sg_buflen &= ~0x3;  in bfin_crypto_crc_handle_queue()
385 		if (ctx->bufnext_len) {  in bfin_crypto_crc_handle_queue()
387 			memset(ctx->bufnext, 0, CHKSUM_DIGEST_SIZE);  in bfin_crypto_crc_handle_queue()
388 			nextlen = ctx->bufnext_len;  in bfin_crypto_crc_handle_queue()
390 				sg = sg_get(ctx->sg, nsg, i);  in bfin_crypto_crc_handle_queue()
392 				memcpy(ctx->bufnext + nextlen - j,  in bfin_crypto_crc_handle_queue()
395 					ctx->sg_nents--;  in bfin_crypto_crc_handle_queue()
404 	if (ctx->bufnext_len && (ctx->flag == CRC_CRYPTO_STATE_FINALUPDATE ||  in bfin_crypto_crc_handle_queue()
405 		ctx->flag == CRC_CRYPTO_STATE_FINISH))  in bfin_crypto_crc_handle_queue()
406 		ctx->sg_buflen += CHKSUM_DIGEST_SIZE;  in bfin_crypto_crc_handle_queue()
409 	writel(ctx->sg_buflen >> 2, &crc->regs->datacnt);  in bfin_crypto_crc_handle_queue()
423 	struct bfin_crypto_crc_reqctx *ctx = ahash_request_ctx(req);  in bfin_crypto_crc_update()  local
428 	dev_dbg(ctx->crc->dev, "crc_update\n");  in bfin_crypto_crc_update()
429 	ctx->total += req->nbytes;  in bfin_crypto_crc_update()
430 	ctx->flag = CRC_CRYPTO_STATE_UPDATE;  in bfin_crypto_crc_update()
432 	return bfin_crypto_crc_handle_queue(ctx->crc, req);  in bfin_crypto_crc_update()
439 	struct bfin_crypto_crc_reqctx *ctx = ahash_request_ctx(req);  in bfin_crypto_crc_final()  local
441 	dev_dbg(ctx->crc->dev, "crc_final\n");  in bfin_crypto_crc_final()
442 	ctx->flag = CRC_CRYPTO_STATE_FINISH;  in bfin_crypto_crc_final()
445 	return bfin_crypto_crc_handle_queue(ctx->crc, req);  in bfin_crypto_crc_final()
452 	struct bfin_crypto_crc_reqctx *ctx = ahash_request_ctx(req);  in bfin_crypto_crc_finup()  local
454 	dev_dbg(ctx->crc->dev, "crc_finishupdate\n");  in bfin_crypto_crc_finup()
455 	ctx->total += req->nbytes;  in bfin_crypto_crc_finup()
456 	ctx->flag = CRC_CRYPTO_STATE_FINALUPDATE;  in bfin_crypto_crc_finup()
459 	return bfin_crypto_crc_handle_queue(ctx->crc, req);  in bfin_crypto_crc_finup()