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-rw-r--r--drivers/crypto/marvell/hash.c1441
1 files changed, 1441 insertions, 0 deletions
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
new file mode 100644
index 000000000..ae9272eb9
--- /dev/null
+++ b/drivers/crypto/marvell/hash.c
@@ -0,0 +1,1441 @@
+/*
+ * Hash algorithms supported by the CESA: MD5, SHA1 and SHA256.
+ *
+ * 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/md5.h>
+#include <crypto/sha.h>
+
+#include "cesa.h"
+
+struct mv_cesa_ahash_dma_iter {
+ struct mv_cesa_dma_iter base;
+ struct mv_cesa_sg_dma_iter src;
+};
+
+static inline void
+mv_cesa_ahash_req_iter_init(struct mv_cesa_ahash_dma_iter *iter,
+ struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int len = req->nbytes;
+
+ if (!creq->last_req)
+ len = (len + creq->cache_ptr) & ~CESA_HASH_BLOCK_SIZE_MSK;
+
+ mv_cesa_req_dma_iter_init(&iter->base, len);
+ mv_cesa_sg_dma_iter_init(&iter->src, req->src, DMA_TO_DEVICE);
+ iter->src.op_offset = creq->cache_ptr;
+}
+
+static inline bool
+mv_cesa_ahash_req_iter_next_op(struct mv_cesa_ahash_dma_iter *iter)
+{
+ iter->src.op_offset = 0;
+
+ return mv_cesa_req_dma_iter_next_op(&iter->base);
+}
+
+static inline int mv_cesa_ahash_dma_alloc_cache(struct mv_cesa_ahash_req *creq,
+ gfp_t flags)
+{
+ struct mv_cesa_ahash_dma_req *dreq = &creq->req.dma;
+
+ creq->cache = dma_pool_alloc(cesa_dev->dma->cache_pool, flags,
+ &dreq->cache_dma);
+ if (!creq->cache)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static inline int mv_cesa_ahash_std_alloc_cache(struct mv_cesa_ahash_req *creq,
+ gfp_t flags)
+{
+ creq->cache = kzalloc(CESA_MAX_HASH_BLOCK_SIZE, flags);
+ if (!creq->cache)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int mv_cesa_ahash_alloc_cache(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
+ GFP_KERNEL : GFP_ATOMIC;
+ int ret;
+
+ if (creq->cache)
+ return 0;
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ ret = mv_cesa_ahash_dma_alloc_cache(creq, flags);
+ else
+ ret = mv_cesa_ahash_std_alloc_cache(creq, flags);
+
+ return ret;
+}
+
+static inline void mv_cesa_ahash_dma_free_cache(struct mv_cesa_ahash_req *creq)
+{
+ dma_pool_free(cesa_dev->dma->cache_pool, creq->cache,
+ creq->req.dma.cache_dma);
+}
+
+static inline void mv_cesa_ahash_std_free_cache(struct mv_cesa_ahash_req *creq)
+{
+ kfree(creq->cache);
+}
+
+static void mv_cesa_ahash_free_cache(struct mv_cesa_ahash_req *creq)
+{
+ if (!creq->cache)
+ return;
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_ahash_dma_free_cache(creq);
+ else
+ mv_cesa_ahash_std_free_cache(creq);
+
+ creq->cache = NULL;
+}
+
+static int mv_cesa_ahash_dma_alloc_padding(struct mv_cesa_ahash_dma_req *req,
+ gfp_t flags)
+{
+ if (req->padding)
+ return 0;
+
+ req->padding = dma_pool_alloc(cesa_dev->dma->padding_pool, flags,
+ &req->padding_dma);
+ if (!req->padding)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void mv_cesa_ahash_dma_free_padding(struct mv_cesa_ahash_dma_req *req)
+{
+ if (!req->padding)
+ return;
+
+ dma_pool_free(cesa_dev->dma->padding_pool, req->padding,
+ req->padding_dma);
+ req->padding = NULL;
+}
+
+static inline void mv_cesa_ahash_dma_last_cleanup(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+
+ mv_cesa_ahash_dma_free_padding(&creq->req.dma);
+}
+
+static inline void mv_cesa_ahash_dma_cleanup(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+
+ dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents, DMA_TO_DEVICE);
+ mv_cesa_dma_cleanup(&creq->req.dma.base);
+}
+
+static inline void mv_cesa_ahash_cleanup(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_ahash_dma_cleanup(req);
+}
+
+static void mv_cesa_ahash_last_cleanup(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+
+ mv_cesa_ahash_free_cache(creq);
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_ahash_dma_last_cleanup(req);
+}
+
+static int mv_cesa_ahash_pad_len(struct mv_cesa_ahash_req *creq)
+{
+ unsigned int index, padlen;
+
+ index = creq->len & CESA_HASH_BLOCK_SIZE_MSK;
+ padlen = (index < 56) ? (56 - index) : (64 + 56 - index);
+
+ return padlen;
+}
+
+static int mv_cesa_ahash_pad_req(struct mv_cesa_ahash_req *creq, u8 *buf)
+{
+ __be64 bits = cpu_to_be64(creq->len << 3);
+ unsigned int index, padlen;
+
+ buf[0] = 0x80;
+ /* Pad out to 56 mod 64 */
+ index = creq->len & CESA_HASH_BLOCK_SIZE_MSK;
+ padlen = mv_cesa_ahash_pad_len(creq);
+ memset(buf + 1, 0, padlen - 1);
+ memcpy(buf + padlen, &bits, sizeof(bits));
+
+ return padlen + 8;
+}
+
+static void mv_cesa_ahash_std_step(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ struct mv_cesa_ahash_std_req *sreq = &creq->req.std;
+ struct mv_cesa_engine *engine = sreq->base.engine;
+ struct mv_cesa_op_ctx *op;
+ unsigned int new_cache_ptr = 0;
+ u32 frag_mode;
+ size_t len;
+
+ if (creq->cache_ptr)
+ memcpy(engine->sram + CESA_SA_DATA_SRAM_OFFSET, creq->cache,
+ creq->cache_ptr);
+
+ len = min_t(size_t, req->nbytes + creq->cache_ptr - sreq->offset,
+ CESA_SA_SRAM_PAYLOAD_SIZE);
+
+ if (!creq->last_req) {
+ new_cache_ptr = len & CESA_HASH_BLOCK_SIZE_MSK;
+ len &= ~CESA_HASH_BLOCK_SIZE_MSK;
+ }
+
+ if (len - creq->cache_ptr)
+ sreq->offset += sg_pcopy_to_buffer(req->src, creq->src_nents,
+ engine->sram +
+ CESA_SA_DATA_SRAM_OFFSET +
+ creq->cache_ptr,
+ len - creq->cache_ptr,
+ sreq->offset);
+
+ op = &creq->op_tmpl;
+
+ frag_mode = mv_cesa_get_op_cfg(op) & CESA_SA_DESC_CFG_FRAG_MSK;
+
+ if (creq->last_req && sreq->offset == req->nbytes &&
+ creq->len <= CESA_SA_DESC_MAC_SRC_TOTAL_LEN_MAX) {
+ if (frag_mode == CESA_SA_DESC_CFG_FIRST_FRAG)
+ frag_mode = CESA_SA_DESC_CFG_NOT_FRAG;
+ else if (frag_mode == CESA_SA_DESC_CFG_MID_FRAG)
+ frag_mode = CESA_SA_DESC_CFG_LAST_FRAG;
+ }
+
+ if (frag_mode == CESA_SA_DESC_CFG_NOT_FRAG ||
+ frag_mode == CESA_SA_DESC_CFG_LAST_FRAG) {
+ if (len &&
+ creq->len <= CESA_SA_DESC_MAC_SRC_TOTAL_LEN_MAX) {
+ mv_cesa_set_mac_op_total_len(op, creq->len);
+ } else {
+ int trailerlen = mv_cesa_ahash_pad_len(creq) + 8;
+
+ if (len + trailerlen > CESA_SA_SRAM_PAYLOAD_SIZE) {
+ len &= CESA_HASH_BLOCK_SIZE_MSK;
+ new_cache_ptr = 64 - trailerlen;
+ memcpy(creq->cache,
+ engine->sram +
+ CESA_SA_DATA_SRAM_OFFSET + len,
+ new_cache_ptr);
+ } else {
+ len += mv_cesa_ahash_pad_req(creq,
+ engine->sram + len +
+ CESA_SA_DATA_SRAM_OFFSET);
+ }
+
+ if (frag_mode == CESA_SA_DESC_CFG_LAST_FRAG)
+ frag_mode = CESA_SA_DESC_CFG_MID_FRAG;
+ else
+ frag_mode = CESA_SA_DESC_CFG_FIRST_FRAG;
+ }
+ }
+
+ mv_cesa_set_mac_op_frag_len(op, len);
+ mv_cesa_update_op_cfg(op, frag_mode, CESA_SA_DESC_CFG_FRAG_MSK);
+
+ /* FIXME: only update enc_len field */
+ memcpy(engine->sram, op, sizeof(*op));
+
+ if (frag_mode == CESA_SA_DESC_CFG_FIRST_FRAG)
+ mv_cesa_update_op_cfg(op, CESA_SA_DESC_CFG_MID_FRAG,
+ CESA_SA_DESC_CFG_FRAG_MSK);
+
+ creq->cache_ptr = new_cache_ptr;
+
+ 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_ahash_std_process(struct ahash_request *req, u32 status)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ struct mv_cesa_ahash_std_req *sreq = &creq->req.std;
+
+ if (sreq->offset < (req->nbytes - creq->cache_ptr))
+ return -EINPROGRESS;
+
+ return 0;
+}
+
+static inline void mv_cesa_ahash_dma_prepare(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ struct mv_cesa_tdma_req *dreq = &creq->req.dma.base;
+
+ mv_cesa_dma_prepare(dreq, dreq->base.engine);
+}
+
+static void mv_cesa_ahash_std_prepare(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ struct mv_cesa_ahash_std_req *sreq = &creq->req.std;
+ struct mv_cesa_engine *engine = sreq->base.engine;
+
+ sreq->offset = 0;
+ mv_cesa_adjust_op(engine, &creq->op_tmpl);
+ memcpy(engine->sram, &creq->op_tmpl, sizeof(creq->op_tmpl));
+}
+
+static void mv_cesa_ahash_step(struct crypto_async_request *req)
+{
+ struct ahash_request *ahashreq = ahash_request_cast(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq);
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_dma_step(&creq->req.dma.base);
+ else
+ mv_cesa_ahash_std_step(ahashreq);
+}
+
+static int mv_cesa_ahash_process(struct crypto_async_request *req, u32 status)
+{
+ struct ahash_request *ahashreq = ahash_request_cast(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq);
+ struct mv_cesa_engine *engine = creq->req.base.engine;
+ unsigned int digsize;
+ int ret, i;
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ ret = mv_cesa_dma_process(&creq->req.dma.base, status);
+ else
+ ret = mv_cesa_ahash_std_process(ahashreq, status);
+
+ if (ret == -EINPROGRESS)
+ return ret;
+
+ digsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(ahashreq));
+ for (i = 0; i < digsize / 4; i++)
+ creq->state[i] = readl(engine->regs + CESA_IVDIG(i));
+
+ if (creq->cache_ptr)
+ sg_pcopy_to_buffer(ahashreq->src, creq->src_nents,
+ creq->cache,
+ creq->cache_ptr,
+ ahashreq->nbytes - creq->cache_ptr);
+
+ if (creq->last_req) {
+ for (i = 0; i < digsize / 4; i++) {
+ /*
+ * Hardware provides MD5 digest in a different
+ * endianness than SHA-1 and SHA-256 ones.
+ */
+ if (digsize == MD5_DIGEST_SIZE)
+ creq->state[i] = cpu_to_le32(creq->state[i]);
+ else
+ creq->state[i] = cpu_to_be32(creq->state[i]);
+ }
+
+ memcpy(ahashreq->result, creq->state, digsize);
+ }
+
+ return ret;
+}
+
+static void mv_cesa_ahash_prepare(struct crypto_async_request *req,
+ struct mv_cesa_engine *engine)
+{
+ struct ahash_request *ahashreq = ahash_request_cast(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq);
+ unsigned int digsize;
+ int i;
+
+ creq->req.base.engine = engine;
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ mv_cesa_ahash_dma_prepare(ahashreq);
+ else
+ mv_cesa_ahash_std_prepare(ahashreq);
+
+ digsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(ahashreq));
+ for (i = 0; i < digsize / 4; i++)
+ writel(creq->state[i],
+ engine->regs + CESA_IVDIG(i));
+}
+
+static void mv_cesa_ahash_req_cleanup(struct crypto_async_request *req)
+{
+ struct ahash_request *ahashreq = ahash_request_cast(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq);
+
+ if (creq->last_req)
+ mv_cesa_ahash_last_cleanup(ahashreq);
+
+ mv_cesa_ahash_cleanup(ahashreq);
+}
+
+static const struct mv_cesa_req_ops mv_cesa_ahash_req_ops = {
+ .step = mv_cesa_ahash_step,
+ .process = mv_cesa_ahash_process,
+ .prepare = mv_cesa_ahash_prepare,
+ .cleanup = mv_cesa_ahash_req_cleanup,
+};
+
+static int mv_cesa_ahash_init(struct ahash_request *req,
+ struct mv_cesa_op_ctx *tmpl)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+
+ memset(creq, 0, sizeof(*creq));
+ mv_cesa_update_op_cfg(tmpl,
+ CESA_SA_DESC_CFG_OP_MAC_ONLY |
+ CESA_SA_DESC_CFG_FIRST_FRAG,
+ CESA_SA_DESC_CFG_OP_MSK |
+ CESA_SA_DESC_CFG_FRAG_MSK);
+ mv_cesa_set_mac_op_total_len(tmpl, 0);
+ mv_cesa_set_mac_op_frag_len(tmpl, 0);
+ creq->op_tmpl = *tmpl;
+ creq->len = 0;
+
+ return 0;
+}
+
+static inline int mv_cesa_ahash_cra_init(struct crypto_tfm *tfm)
+{
+ struct mv_cesa_hash_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ ctx->base.ops = &mv_cesa_ahash_req_ops;
+
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct mv_cesa_ahash_req));
+ return 0;
+}
+
+static int mv_cesa_ahash_cache_req(struct ahash_request *req, bool *cached)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ int ret;
+
+ if (((creq->cache_ptr + req->nbytes) & CESA_HASH_BLOCK_SIZE_MSK) &&
+ !creq->last_req) {
+ ret = mv_cesa_ahash_alloc_cache(req);
+ if (ret)
+ return ret;
+ }
+
+ if (creq->cache_ptr + req->nbytes < 64 && !creq->last_req) {
+ *cached = true;
+
+ if (!req->nbytes)
+ return 0;
+
+ sg_pcopy_to_buffer(req->src, creq->src_nents,
+ creq->cache + creq->cache_ptr,
+ req->nbytes, 0);
+
+ creq->cache_ptr += req->nbytes;
+ }
+
+ return 0;
+}
+
+static struct mv_cesa_op_ctx *
+mv_cesa_ahash_dma_add_cache(struct mv_cesa_tdma_chain *chain,
+ struct mv_cesa_ahash_dma_iter *dma_iter,
+ struct mv_cesa_ahash_req *creq,
+ gfp_t flags)
+{
+ struct mv_cesa_ahash_dma_req *ahashdreq = &creq->req.dma;
+ struct mv_cesa_op_ctx *op = NULL;
+ int ret;
+
+ if (!creq->cache_ptr)
+ return NULL;
+
+ ret = mv_cesa_dma_add_data_transfer(chain,
+ CESA_SA_DATA_SRAM_OFFSET,
+ ahashdreq->cache_dma,
+ creq->cache_ptr,
+ CESA_TDMA_DST_IN_SRAM,
+ flags);
+ if (ret)
+ return ERR_PTR(ret);
+
+ if (!dma_iter->base.op_len) {
+ op = mv_cesa_dma_add_op(chain, &creq->op_tmpl, false, flags);
+ if (IS_ERR(op))
+ return op;
+
+ mv_cesa_set_mac_op_frag_len(op, creq->cache_ptr);
+
+ /* Add dummy desc to launch crypto operation */
+ ret = mv_cesa_dma_add_dummy_launch(chain, flags);
+ if (ret)
+ return ERR_PTR(ret);
+ }
+
+ return op;
+}
+
+static struct mv_cesa_op_ctx *
+mv_cesa_ahash_dma_add_data(struct mv_cesa_tdma_chain *chain,
+ struct mv_cesa_ahash_dma_iter *dma_iter,
+ struct mv_cesa_ahash_req *creq,
+ gfp_t flags)
+{
+ struct mv_cesa_op_ctx *op;
+ int ret;
+
+ op = mv_cesa_dma_add_op(chain, &creq->op_tmpl, false, flags);
+ if (IS_ERR(op))
+ return op;
+
+ mv_cesa_set_mac_op_frag_len(op, dma_iter->base.op_len);
+
+ if ((mv_cesa_get_op_cfg(&creq->op_tmpl) & CESA_SA_DESC_CFG_FRAG_MSK) ==
+ CESA_SA_DESC_CFG_FIRST_FRAG)
+ mv_cesa_update_op_cfg(&creq->op_tmpl,
+ CESA_SA_DESC_CFG_MID_FRAG,
+ CESA_SA_DESC_CFG_FRAG_MSK);
+
+ /* Add input transfers */
+ ret = mv_cesa_dma_add_op_transfers(chain, &dma_iter->base,
+ &dma_iter->src, flags);
+ if (ret)
+ return ERR_PTR(ret);
+
+ /* Add dummy desc to launch crypto operation */
+ ret = mv_cesa_dma_add_dummy_launch(chain, flags);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return op;
+}
+
+static struct mv_cesa_op_ctx *
+mv_cesa_ahash_dma_last_req(struct mv_cesa_tdma_chain *chain,
+ struct mv_cesa_ahash_dma_iter *dma_iter,
+ struct mv_cesa_ahash_req *creq,
+ struct mv_cesa_op_ctx *op,
+ gfp_t flags)
+{
+ struct mv_cesa_ahash_dma_req *ahashdreq = &creq->req.dma;
+ unsigned int len, trailerlen, padoff = 0;
+ int ret;
+
+ if (!creq->last_req)
+ return op;
+
+ if (op && creq->len <= CESA_SA_DESC_MAC_SRC_TOTAL_LEN_MAX) {
+ u32 frag = CESA_SA_DESC_CFG_NOT_FRAG;
+
+ if ((mv_cesa_get_op_cfg(op) & CESA_SA_DESC_CFG_FRAG_MSK) !=
+ CESA_SA_DESC_CFG_FIRST_FRAG)
+ frag = CESA_SA_DESC_CFG_LAST_FRAG;
+
+ mv_cesa_update_op_cfg(op, frag, CESA_SA_DESC_CFG_FRAG_MSK);
+
+ return op;
+ }
+
+ ret = mv_cesa_ahash_dma_alloc_padding(ahashdreq, flags);
+ if (ret)
+ return ERR_PTR(ret);
+
+ trailerlen = mv_cesa_ahash_pad_req(creq, ahashdreq->padding);
+
+ if (op) {
+ len = min(CESA_SA_SRAM_PAYLOAD_SIZE - dma_iter->base.op_len,
+ trailerlen);
+ if (len) {
+ ret = mv_cesa_dma_add_data_transfer(chain,
+ CESA_SA_DATA_SRAM_OFFSET +
+ dma_iter->base.op_len,
+ ahashdreq->padding_dma,
+ len, CESA_TDMA_DST_IN_SRAM,
+ flags);
+ if (ret)
+ return ERR_PTR(ret);
+
+ mv_cesa_update_op_cfg(op, CESA_SA_DESC_CFG_MID_FRAG,
+ CESA_SA_DESC_CFG_FRAG_MSK);
+ mv_cesa_set_mac_op_frag_len(op,
+ dma_iter->base.op_len + len);
+ padoff += len;
+ }
+ }
+
+ if (padoff >= trailerlen)
+ return op;
+
+ if ((mv_cesa_get_op_cfg(&creq->op_tmpl) & CESA_SA_DESC_CFG_FRAG_MSK) !=
+ CESA_SA_DESC_CFG_FIRST_FRAG)
+ mv_cesa_update_op_cfg(&creq->op_tmpl,
+ CESA_SA_DESC_CFG_MID_FRAG,
+ CESA_SA_DESC_CFG_FRAG_MSK);
+
+ op = mv_cesa_dma_add_op(chain, &creq->op_tmpl, false, flags);
+ if (IS_ERR(op))
+ return op;
+
+ mv_cesa_set_mac_op_frag_len(op, trailerlen - padoff);
+
+ ret = mv_cesa_dma_add_data_transfer(chain,
+ CESA_SA_DATA_SRAM_OFFSET,
+ ahashdreq->padding_dma +
+ padoff,
+ trailerlen - padoff,
+ CESA_TDMA_DST_IN_SRAM,
+ flags);
+ if (ret)
+ return ERR_PTR(ret);
+
+ /* Add dummy desc to launch crypto operation */
+ ret = mv_cesa_dma_add_dummy_launch(chain, flags);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return op;
+}
+
+static int mv_cesa_ahash_dma_req_init(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
+ GFP_KERNEL : GFP_ATOMIC;
+ struct mv_cesa_ahash_dma_req *ahashdreq = &creq->req.dma;
+ struct mv_cesa_tdma_req *dreq = &ahashdreq->base;
+ struct mv_cesa_tdma_chain chain;
+ struct mv_cesa_ahash_dma_iter iter;
+ struct mv_cesa_op_ctx *op = NULL;
+ int ret;
+
+ dreq->chain.first = NULL;
+ dreq->chain.last = NULL;
+
+ if (creq->src_nents) {
+ ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents,
+ DMA_TO_DEVICE);
+ if (!ret) {
+ ret = -ENOMEM;
+ goto err;
+ }
+ }
+
+ mv_cesa_tdma_desc_iter_init(&chain);
+ mv_cesa_ahash_req_iter_init(&iter, req);
+
+ op = mv_cesa_ahash_dma_add_cache(&chain, &iter,
+ creq, flags);
+ if (IS_ERR(op)) {
+ ret = PTR_ERR(op);
+ goto err_free_tdma;
+ }
+
+ do {
+ if (!iter.base.op_len)
+ break;
+
+ op = mv_cesa_ahash_dma_add_data(&chain, &iter,
+ creq, flags);
+ if (IS_ERR(op)) {
+ ret = PTR_ERR(op);
+ goto err_free_tdma;
+ }
+ } while (mv_cesa_ahash_req_iter_next_op(&iter));
+
+ op = mv_cesa_ahash_dma_last_req(&chain, &iter, creq, op, flags);
+ if (IS_ERR(op)) {
+ ret = PTR_ERR(op);
+ goto err_free_tdma;
+ }
+
+ if (op) {
+ /* Add dummy desc to wait for crypto operation end */
+ ret = mv_cesa_dma_add_dummy_end(&chain, flags);
+ if (ret)
+ goto err_free_tdma;
+ }
+
+ if (!creq->last_req)
+ creq->cache_ptr = req->nbytes + creq->cache_ptr -
+ iter.base.len;
+ else
+ creq->cache_ptr = 0;
+
+ dreq->chain = chain;
+
+ return 0;
+
+err_free_tdma:
+ mv_cesa_dma_cleanup(dreq);
+ dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents, DMA_TO_DEVICE);
+
+err:
+ mv_cesa_ahash_last_cleanup(req);
+
+ return ret;
+}
+
+static int mv_cesa_ahash_req_init(struct ahash_request *req, bool *cached)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ int ret;
+
+ if (cesa_dev->caps->has_tdma)
+ creq->req.base.type = CESA_DMA_REQ;
+ else
+ creq->req.base.type = CESA_STD_REQ;
+
+ creq->src_nents = sg_nents_for_len(req->src, req->nbytes);
+
+ ret = mv_cesa_ahash_cache_req(req, cached);
+ if (ret)
+ return ret;
+
+ if (*cached)
+ return 0;
+
+ if (creq->req.base.type == CESA_DMA_REQ)
+ ret = mv_cesa_ahash_dma_req_init(req);
+
+ return ret;
+}
+
+static int mv_cesa_ahash_update(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ bool cached = false;
+ int ret;
+
+ creq->len += req->nbytes;
+ ret = mv_cesa_ahash_req_init(req, &cached);
+ if (ret)
+ return ret;
+
+ if (cached)
+ return 0;
+
+ ret = mv_cesa_queue_req(&req->base);
+ if (ret && ret != -EINPROGRESS) {
+ mv_cesa_ahash_cleanup(req);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int mv_cesa_ahash_final(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ struct mv_cesa_op_ctx *tmpl = &creq->op_tmpl;
+ bool cached = false;
+ int ret;
+
+ mv_cesa_set_mac_op_total_len(tmpl, creq->len);
+ creq->last_req = true;
+ req->nbytes = 0;
+
+ ret = mv_cesa_ahash_req_init(req, &cached);
+ if (ret)
+ return ret;
+
+ if (cached)
+ return 0;
+
+ ret = mv_cesa_queue_req(&req->base);
+ if (ret && ret != -EINPROGRESS)
+ mv_cesa_ahash_cleanup(req);
+
+ return ret;
+}
+
+static int mv_cesa_ahash_finup(struct ahash_request *req)
+{
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ struct mv_cesa_op_ctx *tmpl = &creq->op_tmpl;
+ bool cached = false;
+ int ret;
+
+ creq->len += req->nbytes;
+ mv_cesa_set_mac_op_total_len(tmpl, creq->len);
+ creq->last_req = true;
+
+ ret = mv_cesa_ahash_req_init(req, &cached);
+ if (ret)
+ return ret;
+
+ if (cached)
+ return 0;
+
+ ret = mv_cesa_queue_req(&req->base);
+ if (ret && ret != -EINPROGRESS)
+ mv_cesa_ahash_cleanup(req);
+
+ return ret;
+}
+
+static int mv_cesa_md5_init(struct ahash_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_MD5);
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_md5_export(struct ahash_request *req, void *out)
+{
+ struct md5_state *out_state = out;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int digsize = crypto_ahash_digestsize(ahash);
+
+ out_state->byte_count = creq->len;
+ memcpy(out_state->hash, creq->state, digsize);
+ memset(out_state->block, 0, sizeof(out_state->block));
+ if (creq->cache)
+ memcpy(out_state->block, creq->cache, creq->cache_ptr);
+
+ return 0;
+}
+
+static int mv_cesa_md5_import(struct ahash_request *req, const void *in)
+{
+ const struct md5_state *in_state = in;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int digsize = crypto_ahash_digestsize(ahash);
+ unsigned int cache_ptr;
+ int ret;
+
+ creq->len = in_state->byte_count;
+ memcpy(creq->state, in_state->hash, digsize);
+ creq->cache_ptr = 0;
+
+ cache_ptr = creq->len % sizeof(in_state->block);
+ if (!cache_ptr)
+ return 0;
+
+ ret = mv_cesa_ahash_alloc_cache(req);
+ if (ret)
+ return ret;
+
+ memcpy(creq->cache, in_state->block, cache_ptr);
+ creq->cache_ptr = cache_ptr;
+
+ return 0;
+}
+
+static int mv_cesa_md5_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_md5_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+struct ahash_alg mv_md5_alg = {
+ .init = mv_cesa_md5_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_md5_digest,
+ .export = mv_cesa_md5_export,
+ .import = mv_cesa_md5_import,
+ .halg = {
+ .digestsize = MD5_DIGEST_SIZE,
+ .base = {
+ .cra_name = "md5",
+ .cra_driver_name = "mv-md5",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hash_ctx),
+ .cra_init = mv_cesa_ahash_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};
+
+static int mv_cesa_sha1_init(struct ahash_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_SHA1);
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_sha1_export(struct ahash_request *req, void *out)
+{
+ struct sha1_state *out_state = out;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int digsize = crypto_ahash_digestsize(ahash);
+
+ out_state->count = creq->len;
+ memcpy(out_state->state, creq->state, digsize);
+ memset(out_state->buffer, 0, sizeof(out_state->buffer));
+ if (creq->cache)
+ memcpy(out_state->buffer, creq->cache, creq->cache_ptr);
+
+ return 0;
+}
+
+static int mv_cesa_sha1_import(struct ahash_request *req, const void *in)
+{
+ const struct sha1_state *in_state = in;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int digsize = crypto_ahash_digestsize(ahash);
+ unsigned int cache_ptr;
+ int ret;
+
+ creq->len = in_state->count;
+ memcpy(creq->state, in_state->state, digsize);
+ creq->cache_ptr = 0;
+
+ cache_ptr = creq->len % SHA1_BLOCK_SIZE;
+ if (!cache_ptr)
+ return 0;
+
+ ret = mv_cesa_ahash_alloc_cache(req);
+ if (ret)
+ return ret;
+
+ memcpy(creq->cache, in_state->buffer, cache_ptr);
+ creq->cache_ptr = cache_ptr;
+
+ return 0;
+}
+
+static int mv_cesa_sha1_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_sha1_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+struct ahash_alg mv_sha1_alg = {
+ .init = mv_cesa_sha1_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_sha1_digest,
+ .export = mv_cesa_sha1_export,
+ .import = mv_cesa_sha1_import,
+ .halg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name = "mv-sha1",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hash_ctx),
+ .cra_init = mv_cesa_ahash_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};
+
+static int mv_cesa_sha256_init(struct ahash_request *req)
+{
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_SHA256);
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_sha256_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_sha256_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+static int mv_cesa_sha256_export(struct ahash_request *req, void *out)
+{
+ struct sha256_state *out_state = out;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int ds = crypto_ahash_digestsize(ahash);
+
+ out_state->count = creq->len;
+ memcpy(out_state->state, creq->state, ds);
+ memset(out_state->buf, 0, sizeof(out_state->buf));
+ if (creq->cache)
+ memcpy(out_state->buf, creq->cache, creq->cache_ptr);
+
+ return 0;
+}
+
+static int mv_cesa_sha256_import(struct ahash_request *req, const void *in)
+{
+ const struct sha256_state *in_state = in;
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
+ unsigned int digsize = crypto_ahash_digestsize(ahash);
+ unsigned int cache_ptr;
+ int ret;
+
+ creq->len = in_state->count;
+ memcpy(creq->state, in_state->state, digsize);
+ creq->cache_ptr = 0;
+
+ cache_ptr = creq->len % SHA256_BLOCK_SIZE;
+ if (!cache_ptr)
+ return 0;
+
+ ret = mv_cesa_ahash_alloc_cache(req);
+ if (ret)
+ return ret;
+
+ memcpy(creq->cache, in_state->buf, cache_ptr);
+ creq->cache_ptr = cache_ptr;
+
+ return 0;
+}
+
+struct ahash_alg mv_sha256_alg = {
+ .init = mv_cesa_sha256_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_sha256_digest,
+ .export = mv_cesa_sha256_export,
+ .import = mv_cesa_sha256_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "mv-sha256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hash_ctx),
+ .cra_init = mv_cesa_ahash_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};
+
+struct mv_cesa_ahash_result {
+ struct completion completion;
+ int error;
+};
+
+static void mv_cesa_hmac_ahash_complete(struct crypto_async_request *req,
+ int error)
+{
+ struct mv_cesa_ahash_result *result = req->data;
+
+ if (error == -EINPROGRESS)
+ return;
+
+ result->error = error;
+ complete(&result->completion);
+}
+
+static int mv_cesa_ahmac_iv_state_init(struct ahash_request *req, u8 *pad,
+ void *state, unsigned int blocksize)
+{
+ struct mv_cesa_ahash_result result;
+ struct scatterlist sg;
+ int ret;
+
+ ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ mv_cesa_hmac_ahash_complete, &result);
+ sg_init_one(&sg, pad, blocksize);
+ ahash_request_set_crypt(req, &sg, pad, blocksize);
+ init_completion(&result.completion);
+
+ ret = crypto_ahash_init(req);
+ if (ret)
+ return ret;
+
+ ret = crypto_ahash_update(req);
+ if (ret && ret != -EINPROGRESS)
+ return ret;
+
+ wait_for_completion_interruptible(&result.completion);
+ if (result.error)
+ return result.error;
+
+ ret = crypto_ahash_export(req, state);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_pad_init(struct ahash_request *req,
+ const u8 *key, unsigned int keylen,
+ u8 *ipad, u8 *opad,
+ unsigned int blocksize)
+{
+ struct mv_cesa_ahash_result result;
+ struct scatterlist sg;
+ int ret;
+ int i;
+
+ if (keylen <= blocksize) {
+ memcpy(ipad, key, keylen);
+ } else {
+ u8 *keydup = kmemdup(key, keylen, GFP_KERNEL);
+
+ if (!keydup)
+ return -ENOMEM;
+
+ ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ mv_cesa_hmac_ahash_complete,
+ &result);
+ sg_init_one(&sg, keydup, keylen);
+ ahash_request_set_crypt(req, &sg, ipad, keylen);
+ init_completion(&result.completion);
+
+ ret = crypto_ahash_digest(req);
+ if (ret == -EINPROGRESS) {
+ wait_for_completion_interruptible(&result.completion);
+ ret = result.error;
+ }
+
+ /* Set the memory region to 0 to avoid any leak. */
+ memset(keydup, 0, keylen);
+ kfree(keydup);
+
+ if (ret)
+ return ret;
+
+ keylen = crypto_ahash_digestsize(crypto_ahash_reqtfm(req));
+ }
+
+ memset(ipad + keylen, 0, blocksize - keylen);
+ memcpy(opad, ipad, blocksize);
+
+ for (i = 0; i < blocksize; i++) {
+ ipad[i] ^= 0x36;
+ opad[i] ^= 0x5c;
+ }
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_setkey(const char *hash_alg_name,
+ const u8 *key, unsigned int keylen,
+ void *istate, void *ostate)
+{
+ struct ahash_request *req;
+ struct crypto_ahash *tfm;
+ unsigned int blocksize;
+ u8 *ipad = NULL;
+ u8 *opad;
+ int ret;
+
+ tfm = crypto_alloc_ahash(hash_alg_name, CRYPTO_ALG_TYPE_AHASH,
+ CRYPTO_ALG_TYPE_AHASH_MASK);
+ if (IS_ERR(tfm))
+ return PTR_ERR(tfm);
+
+ req = ahash_request_alloc(tfm, GFP_KERNEL);
+ if (!req) {
+ ret = -ENOMEM;
+ goto free_ahash;
+ }
+
+ crypto_ahash_clear_flags(tfm, ~0);
+
+ blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+
+ ipad = kzalloc(2 * blocksize, GFP_KERNEL);
+ if (!ipad) {
+ ret = -ENOMEM;
+ goto free_req;
+ }
+
+ opad = ipad + blocksize;
+
+ ret = mv_cesa_ahmac_pad_init(req, key, keylen, ipad, opad, blocksize);
+ if (ret)
+ goto free_ipad;
+
+ ret = mv_cesa_ahmac_iv_state_init(req, ipad, istate, blocksize);
+ if (ret)
+ goto free_ipad;
+
+ ret = mv_cesa_ahmac_iv_state_init(req, opad, ostate, blocksize);
+
+free_ipad:
+ kfree(ipad);
+free_req:
+ ahash_request_free(req);
+free_ahash:
+ crypto_free_ahash(tfm);
+
+ return ret;
+}
+
+static int mv_cesa_ahmac_cra_init(struct crypto_tfm *tfm)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ ctx->base.ops = &mv_cesa_ahash_req_ops;
+
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct mv_cesa_ahash_req));
+ return 0;
+}
+
+static int mv_cesa_ahmac_md5_init(struct ahash_request *req)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_HMAC_MD5);
+ memcpy(tmpl.ctx.hash.iv, ctx->iv, sizeof(ctx->iv));
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_md5_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+ struct md5_state istate, ostate;
+ int ret, i;
+
+ ret = mv_cesa_ahmac_setkey("mv-md5", key, keylen, &istate, &ostate);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < ARRAY_SIZE(istate.hash); i++)
+ ctx->iv[i] = be32_to_cpu(istate.hash[i]);
+
+ for (i = 0; i < ARRAY_SIZE(ostate.hash); i++)
+ ctx->iv[i + 8] = be32_to_cpu(ostate.hash[i]);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_md5_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_ahmac_md5_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+struct ahash_alg mv_ahmac_md5_alg = {
+ .init = mv_cesa_ahmac_md5_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_ahmac_md5_digest,
+ .setkey = mv_cesa_ahmac_md5_setkey,
+ .export = mv_cesa_md5_export,
+ .import = mv_cesa_md5_import,
+ .halg = {
+ .digestsize = MD5_DIGEST_SIZE,
+ .statesize = sizeof(struct md5_state),
+ .base = {
+ .cra_name = "hmac(md5)",
+ .cra_driver_name = "mv-hmac-md5",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hmac_ctx),
+ .cra_init = mv_cesa_ahmac_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};
+
+static int mv_cesa_ahmac_sha1_init(struct ahash_request *req)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_HMAC_SHA1);
+ memcpy(tmpl.ctx.hash.iv, ctx->iv, sizeof(ctx->iv));
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+ struct sha1_state istate, ostate;
+ int ret, i;
+
+ ret = mv_cesa_ahmac_setkey("mv-sha1", key, keylen, &istate, &ostate);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < ARRAY_SIZE(istate.state); i++)
+ ctx->iv[i] = be32_to_cpu(istate.state[i]);
+
+ for (i = 0; i < ARRAY_SIZE(ostate.state); i++)
+ ctx->iv[i + 8] = be32_to_cpu(ostate.state[i]);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_sha1_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_ahmac_sha1_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+struct ahash_alg mv_ahmac_sha1_alg = {
+ .init = mv_cesa_ahmac_sha1_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_ahmac_sha1_digest,
+ .setkey = mv_cesa_ahmac_sha1_setkey,
+ .export = mv_cesa_sha1_export,
+ .import = mv_cesa_sha1_import,
+ .halg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .statesize = sizeof(struct sha1_state),
+ .base = {
+ .cra_name = "hmac(sha1)",
+ .cra_driver_name = "mv-hmac-sha1",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hmac_ctx),
+ .cra_init = mv_cesa_ahmac_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};
+
+static int mv_cesa_ahmac_sha256_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+ struct sha256_state istate, ostate;
+ int ret, i;
+
+ ret = mv_cesa_ahmac_setkey("mv-sha256", key, keylen, &istate, &ostate);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < ARRAY_SIZE(istate.state); i++)
+ ctx->iv[i] = be32_to_cpu(istate.state[i]);
+
+ for (i = 0; i < ARRAY_SIZE(ostate.state); i++)
+ ctx->iv[i + 8] = be32_to_cpu(ostate.state[i]);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_sha256_init(struct ahash_request *req)
+{
+ struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+ struct mv_cesa_op_ctx tmpl;
+
+ mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_HMAC_SHA256);
+ memcpy(tmpl.ctx.hash.iv, ctx->iv, sizeof(ctx->iv));
+
+ mv_cesa_ahash_init(req, &tmpl);
+
+ return 0;
+}
+
+static int mv_cesa_ahmac_sha256_digest(struct ahash_request *req)
+{
+ int ret;
+
+ ret = mv_cesa_ahmac_sha256_init(req);
+ if (ret)
+ return ret;
+
+ return mv_cesa_ahash_finup(req);
+}
+
+struct ahash_alg mv_ahmac_sha256_alg = {
+ .init = mv_cesa_ahmac_sha256_init,
+ .update = mv_cesa_ahash_update,
+ .final = mv_cesa_ahash_final,
+ .finup = mv_cesa_ahash_finup,
+ .digest = mv_cesa_ahmac_sha256_digest,
+ .setkey = mv_cesa_ahmac_sha256_setkey,
+ .export = mv_cesa_sha256_export,
+ .import = mv_cesa_sha256_import,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "hmac(sha256)",
+ .cra_driver_name = "mv-hmac-sha256",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mv_cesa_hmac_ctx),
+ .cra_init = mv_cesa_ahmac_cra_init,
+ .cra_module = THIS_MODULE,
+ }
+ }
+};