Ejemplo n.º 1
0
static void qce_ablkcipher_done(void *data)
{
	struct crypto_async_request *async_req = data;
	struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
	struct qce_cipher_reqctx *rctx = ablkcipher_request_ctx(req);
	struct qce_alg_template *tmpl = to_cipher_tmpl(async_req->tfm);
	struct qce_device *qce = tmpl->qce;
	enum dma_data_direction dir_src, dir_dst;
	u32 status;
	int error;
	bool diff_dst;

	diff_dst = (req->src != req->dst) ? true : false;
	dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
	dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL;

	error = qce_dma_terminate_all(&qce->dma);
	if (error)
		dev_dbg(qce->dev, "ablkcipher dma termination error (%d)\n",
			error);

	if (diff_dst)
		dma_unmap_sg(qce->dev, rctx->src_sg, rctx->src_nents, dir_src);
	dma_unmap_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);

	sg_free_table(&rctx->dst_tbl);

	error = qce_check_status(qce, &status);
	if (error < 0)
		dev_dbg(qce->dev, "ablkcipher operation error (%x)\n", status);

	qce->async_req_done(tmpl->qce, error);
}
Ejemplo n.º 2
0
Archivo: sha.c Proyecto: DenisLug/mptcp
static void qce_ahash_done(void *data)
{
	struct crypto_async_request *async_req = data;
	struct ahash_request *req = ahash_request_cast(async_req);
	struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
	struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
	struct qce_alg_template *tmpl = to_ahash_tmpl(async_req->tfm);
	struct qce_device *qce = tmpl->qce;
	struct qce_result_dump *result = qce->dma.result_buf;
	unsigned int digestsize = crypto_ahash_digestsize(ahash);
	int error;
	u32 status;

	error = qce_dma_terminate_all(&qce->dma);
	if (error)
		dev_dbg(qce->dev, "ahash dma termination error (%d)\n", error);

	qce_unmapsg(qce->dev, req->src, rctx->src_nents, DMA_TO_DEVICE,
		    rctx->src_chained);
	qce_unmapsg(qce->dev, &rctx->result_sg, 1, DMA_FROM_DEVICE, 0);

	memcpy(rctx->digest, result->auth_iv, digestsize);
	if (req->result)
		memcpy(req->result, result->auth_iv, digestsize);

	rctx->byte_count[0] = cpu_to_be32(result->auth_byte_count[0]);
	rctx->byte_count[1] = cpu_to_be32(result->auth_byte_count[1]);

	error = qce_check_status(qce, &status);
	if (error < 0)
		dev_dbg(qce->dev, "ahash operation error (%x)\n", status);

	req->src = rctx->src_orig;
	req->nbytes = rctx->nbytes_orig;
	rctx->last_blk = false;
	rctx->first_blk = false;

	qce->async_req_done(tmpl->qce, error);
}