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-rw-r--r--drivers/crypto/marvell/cipher.c797
1 files changed, 797 insertions, 0 deletions
diff --git a/drivers/crypto/marvell/cipher.c b/drivers/crypto/marvell/cipher.c
new file mode 100644
index 000000000..0745cf3b9
--- /dev/null
+++ b/drivers/crypto/marvell/cipher.c
@@ -0,0 +1,797 @@
+/*
+ * Cipher algorithms supported by the CESA: DES, 3DES and AES.
+ *
+ * Author: Boris Brezillon <boris.brezillon@free-electrons.com>
+ * Author: Arnaud Ebalard <arno@natisbad.org>
+ *
+ * This work is based on an initial version written by
+ * Sebastian Andrzej Siewior < sebastian at breakpoint dot cc >
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <crypto/aes.h>
+#include <crypto/des.h>
+
+#include "cesa.h"
+
+struct mv_cesa_des_ctx {
+ struct mv_cesa_ctx base;
+ u8 key[DES_KEY_SIZE];
+};
+
+struct mv_cesa_des3_ctx {
+ struct mv_cesa_ctx base;
+ u8 key[DES3_EDE_KEY_SIZE];
+};
+
+struct mv_cesa_aes_ctx {
+ struct mv_cesa_ctx base;
+ struct crypto_aes_ctx aes;
+};
+
+struct mv_cesa_ablkcipher_dma_iter {
+ struct mv_cesa_dma_iter base;
+ struct mv_cesa_sg_dma_iter src;
+ struct mv_cesa_sg_dma_iter dst;
+};
+
+static inline void
+mv_cesa_ablkcipher_req_iter_init(struct mv_cesa_ablkcipher_dma_iter *iter,
+ struct ablkcipher_request *req)
+{
+ mv_cesa_req_dma_iter_init(&iter->base, req->nbytes);
+ mv_cesa_sg_dma_iter_init(&iter->src, req->src, DMA_TO_DEVICE);
+ mv_cesa_sg_dma_iter_init(&iter->dst, req->dst, DMA_FROM_DEVICE);
+}
+
+static inline bool
+mv_cesa_ablkcipher_req_iter_next_op(struct mv_cesa_ablkcipher_dma_iter *iter)
+{
+ iter->src.op_offset = 0;
+ iter->dst.op_offset = 0;
+
+ return mv_cesa_req_dma_iter_next_op(&iter->base);
+}
+
+static inline void
+mv_cesa_ablkcipher_dma_cleanup(struct ablkcipher_request *req)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+
+ if (req->dst != req->src) {
+ dma_unmap_sg(cesa_dev->dev, req->dst, creq->dst_nents,
+ DMA_FROM_DEVICE);
+ dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents,
+ DMA_TO_DEVICE);
+ } else {
+ dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents,
+ DMA_BIDIRECTIONAL);
+ }
+ mv_cesa_dma_cleanup(&creq->req.dma);
+}
+
+static inline void mv_cesa_ablkcipher_cleanup(struct ablkcipher_request *req)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_ablkcipher_dma_cleanup(req);
+}
+
+static void mv_cesa_ablkcipher_std_step(struct ablkcipher_request *req)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+ struct mv_cesa_ablkcipher_std_req *sreq = &creq->req.std;
+ struct mv_cesa_engine *engine = sreq->base.engine;
+ size_t len = min_t(size_t, req->nbytes - sreq->offset,
+ CESA_SA_SRAM_PAYLOAD_SIZE);
+
+ len = sg_pcopy_to_buffer(req->src, creq->src_nents,
+ engine->sram + CESA_SA_DATA_SRAM_OFFSET,
+ len, sreq->offset);
+
+ sreq->size = len;
+ mv_cesa_set_crypt_op_len(&sreq->op, len);
+
+ /* FIXME: only update enc_len field */
+ if (!sreq->skip_ctx) {
+ memcpy(engine->sram, &sreq->op, sizeof(sreq->op));
+ sreq->skip_ctx = true;
+ } else {
+ memcpy(engine->sram, &sreq->op, sizeof(sreq->op.desc));
+ }
+
+ mv_cesa_set_int_mask(engine, CESA_SA_INT_ACCEL0_DONE);
+ writel(CESA_SA_CFG_PARA_DIS, engine->regs + CESA_SA_CFG);
+ writel(CESA_SA_CMD_EN_CESA_SA_ACCL0, engine->regs + CESA_SA_CMD);
+}
+
+static int mv_cesa_ablkcipher_std_process(struct ablkcipher_request *req,
+ u32 status)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+ struct mv_cesa_ablkcipher_std_req *sreq = &creq->req.std;
+ struct mv_cesa_engine *engine = sreq->base.engine;
+ size_t len;
+
+ len = sg_pcopy_from_buffer(req->dst, creq->dst_nents,
+ engine->sram + CESA_SA_DATA_SRAM_OFFSET,
+ sreq->size, sreq->offset);
+
+ sreq->offset += len;
+ if (sreq->offset < req->nbytes)
+ return -EINPROGRESS;
+
+ return 0;
+}
+
+static int mv_cesa_ablkcipher_process(struct crypto_async_request *req,
+ u32 status)
+{
+ struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
+ struct mv_cesa_ablkcipher_std_req *sreq = &creq->req.std;
+ struct mv_cesa_engine *engine = sreq->base.engine;
+ int ret;
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ ret = mv_cesa_dma_process(&creq->req.dma, status);
+ else
+ ret = mv_cesa_ablkcipher_std_process(ablkreq, status);
+
+ if (ret)
+ return ret;
+
+ memcpy(ablkreq->info, engine->sram + CESA_SA_CRYPT_IV_SRAM_OFFSET,
+ crypto_ablkcipher_ivsize(crypto_ablkcipher_reqtfm(ablkreq)));
+
+ return 0;
+}
+
+static void mv_cesa_ablkcipher_step(struct crypto_async_request *req)
+{
+ struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_dma_step(&creq->req.dma);
+ else
+ mv_cesa_ablkcipher_std_step(ablkreq);
+}
+
+static inline void
+mv_cesa_ablkcipher_dma_prepare(struct ablkcipher_request *req)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+ struct mv_cesa_tdma_req *dreq = &creq->req.dma;
+
+ mv_cesa_dma_prepare(dreq, dreq->base.engine);
+}
+
+static inline void
+mv_cesa_ablkcipher_std_prepare(struct ablkcipher_request *req)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+ struct mv_cesa_ablkcipher_std_req *sreq = &creq->req.std;
+ struct mv_cesa_engine *engine = sreq->base.engine;
+
+ sreq->size = 0;
+ sreq->offset = 0;
+ mv_cesa_adjust_op(engine, &sreq->op);
+ memcpy(engine->sram, &sreq->op, sizeof(sreq->op));
+}
+
+static inline void mv_cesa_ablkcipher_prepare(struct crypto_async_request *req,
+ struct mv_cesa_engine *engine)
+{
+ struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
+
+ creq->req.base.engine = engine;
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_ablkcipher_dma_prepare(ablkreq);
+ else
+ mv_cesa_ablkcipher_std_prepare(ablkreq);
+}
+
+static inline void
+mv_cesa_ablkcipher_req_cleanup(struct crypto_async_request *req)
+{
+ struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
+
+ mv_cesa_ablkcipher_cleanup(ablkreq);
+}
+
+static const struct mv_cesa_req_ops mv_cesa_ablkcipher_req_ops = {
+ .step = mv_cesa_ablkcipher_step,
+ .process = mv_cesa_ablkcipher_process,
+ .prepare = mv_cesa_ablkcipher_prepare,
+ .cleanup = mv_cesa_ablkcipher_req_cleanup,
+};
+
+static int mv_cesa_ablkcipher_cra_init(struct crypto_tfm *tfm)
+{
+ struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ ctx->base.ops = &mv_cesa_ablkcipher_req_ops;
+
+ tfm->crt_ablkcipher.reqsize = sizeof(struct mv_cesa_ablkcipher_req);
+
+ return 0;
+}
+
+static int mv_cesa_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+ unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+ struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+ int remaining;
+ int offset;
+ int ret;
+ int i;
+
+ ret = crypto_aes_expand_key(&ctx->aes, key, len);
+ if (ret) {
+ crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return ret;
+ }
+
+ remaining = (ctx->aes.key_length - 16) / 4;
+ offset = ctx->aes.key_length + 24 - remaining;
+ for (i = 0; i < remaining; i++)
+ ctx->aes.key_dec[4 + i] =
+ cpu_to_le32(ctx->aes.key_enc[offset + i]);
+
+ return 0;
+}
+
+static int mv_cesa_des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+ unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+ struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(tfm);
+ u32 tmp[DES_EXPKEY_WORDS];
+ int ret;
+
+ if (len != DES_KEY_SIZE) {
+ crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ ret = des_ekey(tmp, key);
+ if (!ret && (tfm->crt_flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
+ tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ return -EINVAL;
+ }
+
+ memcpy(ctx->key, key, DES_KEY_SIZE);
+
+ return 0;
+}
+
+static int mv_cesa_des3_ede_setkey(struct crypto_ablkcipher *cipher,
+ const u8 *key, unsigned int len)
+{
+ struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+ struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ if (len != DES3_EDE_KEY_SIZE) {
+ crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ memcpy(ctx->key, key, DES3_EDE_KEY_SIZE);
+
+ return 0;
+}
+
+static int mv_cesa_ablkcipher_dma_req_init(struct ablkcipher_request *req,
+ const struct mv_cesa_op_ctx *op_templ)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+ gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
+ GFP_KERNEL : GFP_ATOMIC;
+ struct mv_cesa_tdma_req *dreq = &creq->req.dma;
+ struct mv_cesa_ablkcipher_dma_iter iter;
+ struct mv_cesa_tdma_chain chain;
+ bool skip_ctx = false;
+ int ret;
+
+ dreq->base.type = CESA_DMA_REQ;
+ dreq->chain.first = NULL;
+ dreq->chain.last = NULL;
+
+ if (req->src != req->dst) {
+ ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents,
+ DMA_TO_DEVICE);
+ if (!ret)
+ return -ENOMEM;
+
+ ret = dma_map_sg(cesa_dev->dev, req->dst, creq->dst_nents,
+ DMA_FROM_DEVICE);
+ if (!ret) {
+ ret = -ENOMEM;
+ goto err_unmap_src;
+ }
+ } else {
+ ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents,
+ DMA_BIDIRECTIONAL);
+ if (!ret)
+ return -ENOMEM;
+ }
+
+ mv_cesa_tdma_desc_iter_init(&chain);
+ mv_cesa_ablkcipher_req_iter_init(&iter, req);
+
+ do {
+ struct mv_cesa_op_ctx *op;
+
+ op = mv_cesa_dma_add_op(&chain, op_templ, skip_ctx, flags);
+ if (IS_ERR(op)) {
+ ret = PTR_ERR(op);
+ goto err_free_tdma;
+ }
+ skip_ctx = true;
+
+ mv_cesa_set_crypt_op_len(op, iter.base.op_len);
+
+ /* Add input transfers */
+ ret = mv_cesa_dma_add_op_transfers(&chain, &iter.base,
+ &iter.src, flags);
+ if (ret)
+ goto err_free_tdma;
+
+ /* Add dummy desc to launch the crypto operation */
+ ret = mv_cesa_dma_add_dummy_launch(&chain, flags);
+ if (ret)
+ goto err_free_tdma;
+
+ /* Add output transfers */
+ ret = mv_cesa_dma_add_op_transfers(&chain, &iter.base,
+ &iter.dst, flags);
+ if (ret)
+ goto err_free_tdma;
+
+ } while (mv_cesa_ablkcipher_req_iter_next_op(&iter));
+
+ dreq->chain = chain;
+
+ return 0;
+
+err_free_tdma:
+ mv_cesa_dma_cleanup(dreq);
+ if (req->dst != req->src)
+ dma_unmap_sg(cesa_dev->dev, req->dst, creq->dst_nents,
+ DMA_FROM_DEVICE);
+
+err_unmap_src:
+ dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents,
+ req->dst != req->src ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL);
+
+ return ret;
+}
+
+static inline int
+mv_cesa_ablkcipher_std_req_init(struct ablkcipher_request *req,
+ const struct mv_cesa_op_ctx *op_templ)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+ struct mv_cesa_ablkcipher_std_req *sreq = &creq->req.std;
+
+ sreq->base.type = CESA_STD_REQ;
+ sreq->op = *op_templ;
+ sreq->skip_ctx = false;
+
+ return 0;
+}
+
+static int mv_cesa_ablkcipher_req_init(struct ablkcipher_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+ struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+ unsigned int blksize = crypto_ablkcipher_blocksize(tfm);
+ int ret;
+
+ if (!IS_ALIGNED(req->nbytes, blksize))
+ return -EINVAL;
+
+ creq->src_nents = sg_nents_for_len(req->src, req->nbytes);
+ creq->dst_nents = sg_nents_for_len(req->dst, req->nbytes);
+
+ mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_OP_CRYPT_ONLY,
+ CESA_SA_DESC_CFG_OP_MSK);
+
+ /* TODO: add a threshold for DMA usage */
+ if (cesa_dev->caps->has_tdma)
+ ret = mv_cesa_ablkcipher_dma_req_init(req, tmpl);
+ else
+ ret = mv_cesa_ablkcipher_std_req_init(req, tmpl);
+
+ return ret;
+}
+
+static int mv_cesa_des_op(struct ablkcipher_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ int ret;
+
+ mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTM_DES,
+ CESA_SA_DESC_CFG_CRYPTM_MSK);
+
+ memcpy(tmpl->ctx.blkcipher.key, ctx->key, DES_KEY_SIZE);
+
+ ret = mv_cesa_ablkcipher_req_init(req, tmpl);
+ if (ret)
+ return ret;
+
+ ret = mv_cesa_queue_req(&req->base);
+ if (ret && ret != -EINPROGRESS)
+ mv_cesa_ablkcipher_cleanup(req);
+
+ return ret;
+}
+
+static int mv_cesa_ecb_des_encrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_ECB |
+ CESA_SA_DESC_CFG_DIR_ENC);
+
+ return mv_cesa_des_op(req, &tmpl);
+}
+
+static int mv_cesa_ecb_des_decrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_ECB |
+ CESA_SA_DESC_CFG_DIR_DEC);
+
+ return mv_cesa_des_op(req, &tmpl);
+}
+
+struct crypto_alg mv_cesa_ecb_des_alg = {
+ .cra_name = "ecb(des)",
+ .cra_driver_name = "mv-ecb-des",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_des_ctx),
+ .cra_alignmask = 0,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_init = mv_cesa_ablkcipher_cra_init,
+ .cra_u = {
+ .ablkcipher = {
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .setkey = mv_cesa_des_setkey,
+ .encrypt = mv_cesa_ecb_des_encrypt,
+ .decrypt = mv_cesa_ecb_des_decrypt,
+ },
+ },
+};
+
+static int mv_cesa_cbc_des_op(struct ablkcipher_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTCM_CBC,
+ CESA_SA_DESC_CFG_CRYPTCM_MSK);
+
+ memcpy(tmpl->ctx.blkcipher.iv, req->info, DES_BLOCK_SIZE);
+
+ return mv_cesa_des_op(req, tmpl);
+}
+
+static int mv_cesa_cbc_des_encrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_ENC);
+
+ return mv_cesa_cbc_des_op(req, &tmpl);
+}
+
+static int mv_cesa_cbc_des_decrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_DEC);
+
+ return mv_cesa_cbc_des_op(req, &tmpl);
+}
+
+struct crypto_alg mv_cesa_cbc_des_alg = {
+ .cra_name = "cbc(des)",
+ .cra_driver_name = "mv-cbc-des",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_des_ctx),
+ .cra_alignmask = 0,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_init = mv_cesa_ablkcipher_cra_init,
+ .cra_u = {
+ .ablkcipher = {
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ .ivsize = DES_BLOCK_SIZE,
+ .setkey = mv_cesa_des_setkey,
+ .encrypt = mv_cesa_cbc_des_encrypt,
+ .decrypt = mv_cesa_cbc_des_decrypt,
+ },
+ },
+};
+
+static int mv_cesa_des3_op(struct ablkcipher_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ struct mv_cesa_des3_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ int ret;
+
+ mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTM_3DES,
+ CESA_SA_DESC_CFG_CRYPTM_MSK);
+
+ memcpy(tmpl->ctx.blkcipher.key, ctx->key, DES3_EDE_KEY_SIZE);
+
+ ret = mv_cesa_ablkcipher_req_init(req, tmpl);
+ if (ret)
+ return ret;
+
+ ret = mv_cesa_queue_req(&req->base);
+ if (ret && ret != -EINPROGRESS)
+ mv_cesa_ablkcipher_cleanup(req);
+
+ return ret;
+}
+
+static int mv_cesa_ecb_des3_ede_encrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_ECB |
+ CESA_SA_DESC_CFG_3DES_EDE |
+ CESA_SA_DESC_CFG_DIR_ENC);
+
+ return mv_cesa_des3_op(req, &tmpl);
+}
+
+static int mv_cesa_ecb_des3_ede_decrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_ECB |
+ CESA_SA_DESC_CFG_3DES_EDE |
+ CESA_SA_DESC_CFG_DIR_DEC);
+
+ return mv_cesa_des3_op(req, &tmpl);
+}
+
+struct crypto_alg mv_cesa_ecb_des3_ede_alg = {
+ .cra_name = "ecb(des3_ede)",
+ .cra_driver_name = "mv-ecb-des3-ede",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_des3_ctx),
+ .cra_alignmask = 0,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_init = mv_cesa_ablkcipher_cra_init,
+ .cra_u = {
+ .ablkcipher = {
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .setkey = mv_cesa_des3_ede_setkey,
+ .encrypt = mv_cesa_ecb_des3_ede_encrypt,
+ .decrypt = mv_cesa_ecb_des3_ede_decrypt,
+ },
+ },
+};
+
+static int mv_cesa_cbc_des3_op(struct ablkcipher_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ memcpy(tmpl->ctx.blkcipher.iv, req->info, DES3_EDE_BLOCK_SIZE);
+
+ return mv_cesa_des3_op(req, tmpl);
+}
+
+static int mv_cesa_cbc_des3_ede_encrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_CBC |
+ CESA_SA_DESC_CFG_3DES_EDE |
+ CESA_SA_DESC_CFG_DIR_ENC);
+
+ return mv_cesa_cbc_des3_op(req, &tmpl);
+}
+
+static int mv_cesa_cbc_des3_ede_decrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_CBC |
+ CESA_SA_DESC_CFG_3DES_EDE |
+ CESA_SA_DESC_CFG_DIR_DEC);
+
+ return mv_cesa_cbc_des3_op(req, &tmpl);
+}
+
+struct crypto_alg mv_cesa_cbc_des3_ede_alg = {
+ .cra_name = "cbc(des3_ede)",
+ .cra_driver_name = "mv-cbc-des3-ede",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_des3_ctx),
+ .cra_alignmask = 0,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_init = mv_cesa_ablkcipher_cra_init,
+ .cra_u = {
+ .ablkcipher = {
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .setkey = mv_cesa_des3_ede_setkey,
+ .encrypt = mv_cesa_cbc_des3_ede_encrypt,
+ .decrypt = mv_cesa_cbc_des3_ede_decrypt,
+ },
+ },
+};
+
+static int mv_cesa_aes_op(struct ablkcipher_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ int ret, i;
+ u32 *key;
+ u32 cfg;
+
+ cfg = CESA_SA_DESC_CFG_CRYPTM_AES;
+
+ if (mv_cesa_get_op_cfg(tmpl) & CESA_SA_DESC_CFG_DIR_DEC)
+ key = ctx->aes.key_dec;
+ else
+ key = ctx->aes.key_enc;
+
+ for (i = 0; i < ctx->aes.key_length / sizeof(u32); i++)
+ tmpl->ctx.blkcipher.key[i] = cpu_to_le32(key[i]);
+
+ if (ctx->aes.key_length == 24)
+ cfg |= CESA_SA_DESC_CFG_AES_LEN_192;
+ else if (ctx->aes.key_length == 32)
+ cfg |= CESA_SA_DESC_CFG_AES_LEN_256;
+
+ mv_cesa_update_op_cfg(tmpl, cfg,
+ CESA_SA_DESC_CFG_CRYPTM_MSK |
+ CESA_SA_DESC_CFG_AES_LEN_MSK);
+
+ ret = mv_cesa_ablkcipher_req_init(req, tmpl);
+ if (ret)
+ return ret;
+
+ ret = mv_cesa_queue_req(&req->base);
+ if (ret && ret != -EINPROGRESS)
+ mv_cesa_ablkcipher_cleanup(req);
+
+ return ret;
+}
+
+static int mv_cesa_ecb_aes_encrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_ECB |
+ CESA_SA_DESC_CFG_DIR_ENC);
+
+ return mv_cesa_aes_op(req, &tmpl);
+}
+
+static int mv_cesa_ecb_aes_decrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl,
+ CESA_SA_DESC_CFG_CRYPTCM_ECB |
+ CESA_SA_DESC_CFG_DIR_DEC);
+
+ return mv_cesa_aes_op(req, &tmpl);
+}
+
+struct crypto_alg mv_cesa_ecb_aes_alg = {
+ .cra_name = "ecb(aes)",
+ .cra_driver_name = "mv-ecb-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_aes_ctx),
+ .cra_alignmask = 0,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_init = mv_cesa_ablkcipher_cra_init,
+ .cra_u = {
+ .ablkcipher = {
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = mv_cesa_aes_setkey,
+ .encrypt = mv_cesa_ecb_aes_encrypt,
+ .decrypt = mv_cesa_ecb_aes_decrypt,
+ },
+ },
+};
+
+static int mv_cesa_cbc_aes_op(struct ablkcipher_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTCM_CBC,
+ CESA_SA_DESC_CFG_CRYPTCM_MSK);
+ memcpy(tmpl->ctx.blkcipher.iv, req->info, AES_BLOCK_SIZE);
+
+ return mv_cesa_aes_op(req, tmpl);
+}
+
+static int mv_cesa_cbc_aes_encrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_ENC);
+
+ return mv_cesa_cbc_aes_op(req, &tmpl);
+}
+
+static int mv_cesa_cbc_aes_decrypt(struct ablkcipher_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_DEC);
+
+ return mv_cesa_cbc_aes_op(req, &tmpl);
+}
+
+struct crypto_alg mv_cesa_cbc_aes_alg = {
+ .cra_name = "cbc(aes)",
+ .cra_driver_name = "mv-cbc-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
+ CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_aes_ctx),
+ .cra_alignmask = 0,
+ .cra_type = &crypto_ablkcipher_type,
+ .cra_module = THIS_MODULE,
+ .cra_init = mv_cesa_ablkcipher_cra_init,
+ .cra_u = {
+ .ablkcipher = {
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = mv_cesa_aes_setkey,
+ .encrypt = mv_cesa_cbc_aes_encrypt,
+ .decrypt = mv_cesa_cbc_aes_decrypt,
+ },
+ },
+};