1 files changed, 0 insertions, 429 deletions

diff --git a/drivers/crypto/qce/ablkcipher.c b/drivers/crypto/qce/ablkcipher.c
deleted file mode 100644
index 25c13e26d012..000000000000
--- a/drivers/crypto/qce/ablkcipher.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/*
- * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/types.h>
-#include <crypto/aes.h>
-#include <crypto/des.h>
-#include <crypto/internal/skcipher.h>
-
-#include "cipher.h"
-
-static LIST_HEAD(ablkcipher_algs);
-
-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);
-}
-
-static int
-qce_ablkcipher_async_req_handle(struct crypto_async_request *async_req)
-{
-	struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
-	struct qce_cipher_reqctx *rctx = ablkcipher_request_ctx(req);
-	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(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;
-	struct scatterlist *sg;
-	bool diff_dst;
-	gfp_t gfp;
-	int ret;
-
-	rctx->iv = req->info;
-	rctx->ivsize = crypto_ablkcipher_ivsize(ablkcipher);
-	rctx->cryptlen = req->nbytes;
-
-	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;
-
-	rctx->src_nents = sg_nents_for_len(req->src, req->nbytes);
-	if (diff_dst)
-		rctx->dst_nents = sg_nents_for_len(req->dst, req->nbytes);
-	else
-		rctx->dst_nents = rctx->src_nents;
-	if (rctx->src_nents < 0) {
-		dev_err(qce->dev, "Invalid numbers of src SG.\n");
-		return rctx->src_nents;
-	}
-	if (rctx->dst_nents < 0) {
-		dev_err(qce->dev, "Invalid numbers of dst SG.\n");
-		return -rctx->dst_nents;
-	}
-
-	rctx->dst_nents += 1;
-
-	gfp = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
-						GFP_KERNEL : GFP_ATOMIC;
-
-	ret = sg_alloc_table(&rctx->dst_tbl, rctx->dst_nents, gfp);
-	if (ret)
-		return ret;
-
-	sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ);
-
-	sg = qce_sgtable_add(&rctx->dst_tbl, req->dst);
-	if (IS_ERR(sg)) {
-		ret = PTR_ERR(sg);
-		goto error_free;
-	}
-
-	sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg);
-	if (IS_ERR(sg)) {
-		ret = PTR_ERR(sg);
-		goto error_free;
-	}
-
-	sg_mark_end(sg);
-	rctx->dst_sg = rctx->dst_tbl.sgl;
-
-	ret = dma_map_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);
-	if (ret < 0)
-		goto error_free;
-
-	if (diff_dst) {
-		ret = dma_map_sg(qce->dev, req->src, rctx->src_nents, dir_src);
-		if (ret < 0)
-			goto error_unmap_dst;
-		rctx->src_sg = req->src;
-	} else {
-		rctx->src_sg = rctx->dst_sg;
-	}
-
-	ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, rctx->src_nents,
-			       rctx->dst_sg, rctx->dst_nents,
-			       qce_ablkcipher_done, async_req);
-	if (ret)
-		goto error_unmap_src;
-
-	qce_dma_issue_pending(&qce->dma);
-
-	ret = qce_start(async_req, tmpl->crypto_alg_type, req->nbytes, 0);
-	if (ret)
-		goto error_terminate;
-
-	return 0;
-
-error_terminate:
-	qce_dma_terminate_all(&qce->dma);
-error_unmap_src:
-	if (diff_dst)
-		dma_unmap_sg(qce->dev, req->src, rctx->src_nents, dir_src);
-error_unmap_dst:
-	dma_unmap_sg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst);
-error_free:
-	sg_free_table(&rctx->dst_tbl);
-	return ret;
-}
-
-static int qce_ablkcipher_setkey(struct crypto_ablkcipher *ablk, const u8 *key,
-				 unsigned int keylen)
-{
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(ablk);
-	struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
-	unsigned long flags = to_cipher_tmpl(tfm)->alg_flags;
-	int ret;
-
-	if (!key || !keylen)
-		return -EINVAL;
-
-	if (IS_AES(flags)) {
-		switch (keylen) {
-		case AES_KEYSIZE_128:
-		case AES_KEYSIZE_256:
-			break;
-		default:
-			goto fallback;
-		}
-	} else if (IS_DES(flags)) {
-		u32 tmp[DES_EXPKEY_WORDS];
-
-		ret = des_ekey(tmp, key);
-		if (!ret && crypto_ablkcipher_get_flags(ablk) &
-		    CRYPTO_TFM_REQ_WEAK_KEY)
-			goto weakkey;
-	}
-
-	ctx->enc_keylen = keylen;
-	memcpy(ctx->enc_key, key, keylen);
-	return 0;
-fallback:
-	ret = crypto_sync_skcipher_setkey(ctx->fallback, key, keylen);
-	if (!ret)
-		ctx->enc_keylen = keylen;
-	return ret;
-weakkey:
-	crypto_ablkcipher_set_flags(ablk, CRYPTO_TFM_RES_WEAK_KEY);
-	return -EINVAL;
-}
-
-static int qce_ablkcipher_crypt(struct ablkcipher_request *req, int encrypt)
-{
-	struct crypto_tfm *tfm =
-			crypto_ablkcipher_tfm(crypto_ablkcipher_reqtfm(req));
-	struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
-	struct qce_cipher_reqctx *rctx = ablkcipher_request_ctx(req);
-	struct qce_alg_template *tmpl = to_cipher_tmpl(tfm);
-	int ret;
-
-	rctx->flags = tmpl->alg_flags;
-	rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT;
-
-	if (IS_AES(rctx->flags) && ctx->enc_keylen != AES_KEYSIZE_128 &&
-	    ctx->enc_keylen != AES_KEYSIZE_256) {
-		SYNC_SKCIPHER_REQUEST_ON_STACK(subreq, ctx->fallback);
-
-		skcipher_request_set_sync_tfm(subreq, ctx->fallback);
-		skcipher_request_set_callback(subreq, req->base.flags,
-					      NULL, NULL);
-		skcipher_request_set_crypt(subreq, req->src, req->dst,
-					   req->nbytes, req->info);
-		ret = encrypt ? crypto_skcipher_encrypt(subreq) :
-				crypto_skcipher_decrypt(subreq);
-		skcipher_request_zero(subreq);
-		return ret;
-	}
-
-	return tmpl->qce->async_req_enqueue(tmpl->qce, &req->base);
-}
-
-static int qce_ablkcipher_encrypt(struct ablkcipher_request *req)
-{
-	return qce_ablkcipher_crypt(req, 1);
-}
-
-static int qce_ablkcipher_decrypt(struct ablkcipher_request *req)
-{
-	return qce_ablkcipher_crypt(req, 0);
-}
-
-static int qce_ablkcipher_init(struct crypto_tfm *tfm)
-{
-	struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	memset(ctx, 0, sizeof(*ctx));
-	tfm->crt_ablkcipher.reqsize = sizeof(struct qce_cipher_reqctx);
-
-	ctx->fallback = crypto_alloc_sync_skcipher(crypto_tfm_alg_name(tfm),
-						   0, CRYPTO_ALG_NEED_FALLBACK);
-	return PTR_ERR_OR_ZERO(ctx->fallback);
-}
-
-static void qce_ablkcipher_exit(struct crypto_tfm *tfm)
-{
-	struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	crypto_free_sync_skcipher(ctx->fallback);
-}
-
-struct qce_ablkcipher_def {
-	unsigned long flags;
-	const char *name;
-	const char *drv_name;
-	unsigned int blocksize;
-	unsigned int ivsize;
-	unsigned int min_keysize;
-	unsigned int max_keysize;
-};
-
-static const struct qce_ablkcipher_def ablkcipher_def[] = {
-	{
-		.flags		= QCE_ALG_AES | QCE_MODE_ECB,
-		.name		= "ecb(aes)",
-		.drv_name	= "ecb-aes-qce",
-		.blocksize	= AES_BLOCK_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
-		.min_keysize	= AES_MIN_KEY_SIZE,
-		.max_keysize	= AES_MAX_KEY_SIZE,
-	},
-	{
-		.flags		= QCE_ALG_AES | QCE_MODE_CBC,
-		.name		= "cbc(aes)",
-		.drv_name	= "cbc-aes-qce",
-		.blocksize	= AES_BLOCK_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
-		.min_keysize	= AES_MIN_KEY_SIZE,
-		.max_keysize	= AES_MAX_KEY_SIZE,
-	},
-	{
-		.flags		= QCE_ALG_AES | QCE_MODE_CTR,
-		.name		= "ctr(aes)",
-		.drv_name	= "ctr-aes-qce",
-		.blocksize	= AES_BLOCK_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
-		.min_keysize	= AES_MIN_KEY_SIZE,
-		.max_keysize	= AES_MAX_KEY_SIZE,
-	},
-	{
-		.flags		= QCE_ALG_AES | QCE_MODE_XTS,
-		.name		= "xts(aes)",
-		.drv_name	= "xts-aes-qce",
-		.blocksize	= AES_BLOCK_SIZE,
-		.ivsize		= AES_BLOCK_SIZE,
-		.min_keysize	= AES_MIN_KEY_SIZE,
-		.max_keysize	= AES_MAX_KEY_SIZE,
-	},
-	{
-		.flags		= QCE_ALG_DES | QCE_MODE_ECB,
-		.name		= "ecb(des)",
-		.drv_name	= "ecb-des-qce",
-		.blocksize	= DES_BLOCK_SIZE,
-		.ivsize		= 0,
-		.min_keysize	= DES_KEY_SIZE,
-		.max_keysize	= DES_KEY_SIZE,
-	},
-	{
-		.flags		= QCE_ALG_DES | QCE_MODE_CBC,
-		.name		= "cbc(des)",
-		.drv_name	= "cbc-des-qce",
-		.blocksize	= DES_BLOCK_SIZE,
-		.ivsize		= DES_BLOCK_SIZE,
-		.min_keysize	= DES_KEY_SIZE,
-		.max_keysize	= DES_KEY_SIZE,
-	},
-	{
-		.flags		= QCE_ALG_3DES | QCE_MODE_ECB,
-		.name		= "ecb(des3_ede)",
-		.drv_name	= "ecb-3des-qce",
-		.blocksize	= DES3_EDE_BLOCK_SIZE,
-		.ivsize		= 0,
-		.min_keysize	= DES3_EDE_KEY_SIZE,
-		.max_keysize	= DES3_EDE_KEY_SIZE,
-	},
-	{
-		.flags		= QCE_ALG_3DES | QCE_MODE_CBC,
-		.name		= "cbc(des3_ede)",
-		.drv_name	= "cbc-3des-qce",
-		.blocksize	= DES3_EDE_BLOCK_SIZE,
-		.ivsize		= DES3_EDE_BLOCK_SIZE,
-		.min_keysize	= DES3_EDE_KEY_SIZE,
-		.max_keysize	= DES3_EDE_KEY_SIZE,
-	},
-};
-
-static int qce_ablkcipher_register_one(const struct qce_ablkcipher_def *def,
-				       struct qce_device *qce)
-{
-	struct qce_alg_template *tmpl;
-	struct crypto_alg *alg;
-	int ret;
-
-	tmpl = kzalloc(sizeof(*tmpl), GFP_KERNEL);
-	if (!tmpl)
-		return -ENOMEM;
-
-	alg = &tmpl->alg.crypto;
-
-	snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name);
-	snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
-		 def->drv_name);
-
-	alg->cra_blocksize = def->blocksize;
-	alg->cra_ablkcipher.ivsize = def->ivsize;
-	alg->cra_ablkcipher.min_keysize = def->min_keysize;
-	alg->cra_ablkcipher.max_keysize = def->max_keysize;
-	alg->cra_ablkcipher.setkey = qce_ablkcipher_setkey;
-	alg->cra_ablkcipher.encrypt = qce_ablkcipher_encrypt;
-	alg->cra_ablkcipher.decrypt = qce_ablkcipher_decrypt;
-
-	alg->cra_priority = 300;
-	alg->cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC |
-			 CRYPTO_ALG_NEED_FALLBACK;
-	alg->cra_ctxsize = sizeof(struct qce_cipher_ctx);
-	alg->cra_alignmask = 0;
-	alg->cra_type = &crypto_ablkcipher_type;
-	alg->cra_module = THIS_MODULE;
-	alg->cra_init = qce_ablkcipher_init;
-	alg->cra_exit = qce_ablkcipher_exit;
-
-	INIT_LIST_HEAD(&tmpl->entry);
-	tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_ABLKCIPHER;
-	tmpl->alg_flags = def->flags;
-	tmpl->qce = qce;
-
-	ret = crypto_register_alg(alg);
-	if (ret) {
-		kfree(tmpl);
-		dev_err(qce->dev, "%s registration failed\n", alg->cra_name);
-		return ret;
-	}
-
-	list_add_tail(&tmpl->entry, &ablkcipher_algs);
-	dev_dbg(qce->dev, "%s is registered\n", alg->cra_name);
-	return 0;
-}
-
-static void qce_ablkcipher_unregister(struct qce_device *qce)
-{
-	struct qce_alg_template *tmpl, *n;
-
-	list_for_each_entry_safe(tmpl, n, &ablkcipher_algs, entry) {
-		crypto_unregister_alg(&tmpl->alg.crypto);
-		list_del(&tmpl->entry);
-		kfree(tmpl);
-	}
-}
-
-static int qce_ablkcipher_register(struct qce_device *qce)
-{
-	int ret, i;
-
-	for (i = 0; i < ARRAY_SIZE(ablkcipher_def); i++) {
-		ret = qce_ablkcipher_register_one(&ablkcipher_def[i], qce);
-		if (ret)
-			goto err;
-	}
-
-	return 0;
-err:
-	qce_ablkcipher_unregister(qce);
-	return ret;
-}
-
-const struct qce_algo_ops ablkcipher_ops = {
-	.type = CRYPTO_ALG_TYPE_ABLKCIPHER,
-	.register_algs = qce_ablkcipher_register,
-	.unregister_algs = qce_ablkcipher_unregister,
-	.async_req_handle = qce_ablkcipher_async_req_handle,
-};