diff options
Diffstat (limited to 'drivers/crypto/caam/caamalg_qi2.c')
| -rw-r--r-- | drivers/crypto/caam/caamalg_qi2.c | 5531 |
1 files changed, 5531 insertions, 0 deletions
diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c new file mode 100644 index 0000000000..a148ff1f08 --- /dev/null +++ b/drivers/crypto/caam/caamalg_qi2.c @@ -0,0 +1,5531 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* + * Copyright 2015-2016 Freescale Semiconductor Inc. + * Copyright 2017-2019 NXP + */ + +#include "compat.h" +#include "regs.h" +#include "caamalg_qi2.h" +#include "dpseci_cmd.h" +#include "desc_constr.h" +#include "error.h" +#include "sg_sw_sec4.h" +#include "sg_sw_qm2.h" +#include "key_gen.h" +#include "caamalg_desc.h" +#include "caamhash_desc.h" +#include "dpseci-debugfs.h" +#include <linux/dma-mapping.h> +#include <linux/fsl/mc.h> +#include <linux/kernel.h> +#include <soc/fsl/dpaa2-io.h> +#include <soc/fsl/dpaa2-fd.h> +#include <crypto/xts.h> +#include <asm/unaligned.h> + +#define CAAM_CRA_PRIORITY 2000 + +/* max key is sum of AES_MAX_KEY_SIZE, max split key size */ +#define CAAM_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE + \ + SHA512_DIGEST_SIZE * 2) + +/* + * This is a cache of buffers, from which the users of CAAM QI driver + * can allocate short buffers. It's speedier than doing kmalloc on the hotpath. + * NOTE: A more elegant solution would be to have some headroom in the frames + * being processed. This can be added by the dpaa2-eth driver. This would + * pose a problem for userspace application processing which cannot + * know of this limitation. So for now, this will work. + * NOTE: The memcache is SMP-safe. No need to handle spinlocks in-here + */ +static struct kmem_cache *qi_cache; + +struct caam_alg_entry { + struct device *dev; + int class1_alg_type; + int class2_alg_type; + bool rfc3686; + bool geniv; + bool nodkp; +}; + +struct caam_aead_alg { + struct aead_alg aead; + struct caam_alg_entry caam; + bool registered; +}; + +struct caam_skcipher_alg { + struct skcipher_alg skcipher; + struct caam_alg_entry caam; + bool registered; +}; + +/** + * struct caam_ctx - per-session context + * @flc: Flow Contexts array + * @key: [authentication key], encryption key + * @flc_dma: I/O virtual addresses of the Flow Contexts + * @key_dma: I/O virtual address of the key + * @dir: DMA direction for mapping key and Flow Contexts + * @dev: dpseci device + * @adata: authentication algorithm details + * @cdata: encryption algorithm details + * @authsize: authentication tag (a.k.a. ICV / MAC) size + * @xts_key_fallback: true if fallback tfm needs to be used due + * to unsupported xts key lengths + * @fallback: xts fallback tfm + */ +struct caam_ctx { + struct caam_flc flc[NUM_OP]; + u8 key[CAAM_MAX_KEY_SIZE]; + dma_addr_t flc_dma[NUM_OP]; + dma_addr_t key_dma; + enum dma_data_direction dir; + struct device *dev; + struct alginfo adata; + struct alginfo cdata; + unsigned int authsize; + bool xts_key_fallback; + struct crypto_skcipher *fallback; +}; + +static void *dpaa2_caam_iova_to_virt(struct dpaa2_caam_priv *priv, + dma_addr_t iova_addr) +{ + phys_addr_t phys_addr; + + phys_addr = priv->domain ? iommu_iova_to_phys(priv->domain, iova_addr) : + iova_addr; + + return phys_to_virt(phys_addr); +} + +/* + * qi_cache_zalloc - Allocate buffers from CAAM-QI cache + * + * Allocate data on the hotpath. Instead of using kzalloc, one can use the + * services of the CAAM QI memory cache (backed by kmem_cache). The buffers + * will have a size of CAAM_QI_MEMCACHE_SIZE, which should be sufficient for + * hosting 16 SG entries. + * + * @flags - flags that would be used for the equivalent kmalloc(..) call + * + * Returns a pointer to a retrieved buffer on success or NULL on failure. + */ +static inline void *qi_cache_zalloc(gfp_t flags) +{ + return kmem_cache_zalloc(qi_cache, flags); +} + +/* + * qi_cache_free - Frees buffers allocated from CAAM-QI cache + * + * @obj - buffer previously allocated by qi_cache_zalloc + * + * No checking is being done, the call is a passthrough call to + * kmem_cache_free(...) + */ +static inline void qi_cache_free(void *obj) +{ + kmem_cache_free(qi_cache, obj); +} + +static struct caam_request *to_caam_req(struct crypto_async_request *areq) +{ + switch (crypto_tfm_alg_type(areq->tfm)) { + case CRYPTO_ALG_TYPE_SKCIPHER: + return skcipher_request_ctx_dma(skcipher_request_cast(areq)); + case CRYPTO_ALG_TYPE_AEAD: + return aead_request_ctx_dma( + container_of(areq, struct aead_request, base)); + case CRYPTO_ALG_TYPE_AHASH: + return ahash_request_ctx_dma(ahash_request_cast(areq)); + default: + return ERR_PTR(-EINVAL); + } +} + +static void caam_unmap(struct device *dev, struct scatterlist *src, + struct scatterlist *dst, int src_nents, + int dst_nents, dma_addr_t iv_dma, int ivsize, + enum dma_data_direction iv_dir, dma_addr_t qm_sg_dma, + int qm_sg_bytes) +{ + if (dst != src) { + if (src_nents) + dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE); + if (dst_nents) + dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE); + } else { + dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL); + } + + if (iv_dma) + dma_unmap_single(dev, iv_dma, ivsize, iv_dir); + + if (qm_sg_bytes) + dma_unmap_single(dev, qm_sg_dma, qm_sg_bytes, DMA_TO_DEVICE); +} + +static int aead_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead), + typeof(*alg), aead); + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + unsigned int ivsize = crypto_aead_ivsize(aead); + struct device *dev = ctx->dev; + struct dpaa2_caam_priv *priv = dev_get_drvdata(dev); + struct caam_flc *flc; + u32 *desc; + u32 ctx1_iv_off = 0; + u32 *nonce = NULL; + unsigned int data_len[2]; + u32 inl_mask; + const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == + OP_ALG_AAI_CTR_MOD128); + const bool is_rfc3686 = alg->caam.rfc3686; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + /* + * AES-CTR needs to load IV in CONTEXT1 reg + * at an offset of 128bits (16bytes) + * CONTEXT1[255:128] = IV + */ + if (ctr_mode) + ctx1_iv_off = 16; + + /* + * RFC3686 specific: + * CONTEXT1[255:128] = {NONCE, IV, COUNTER} + */ + if (is_rfc3686) { + ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE; + nonce = (u32 *)((void *)ctx->key + ctx->adata.keylen_pad + + ctx->cdata.keylen - CTR_RFC3686_NONCE_SIZE); + } + + /* + * In case |user key| > |derived key|, using DKP<imm,imm> would result + * in invalid opcodes (last bytes of user key) in the resulting + * descriptor. Use DKP<ptr,imm> instead => both virtual and dma key + * addresses are needed. + */ + ctx->adata.key_virt = ctx->key; + ctx->adata.key_dma = ctx->key_dma; + + ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad; + ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad; + + data_len[0] = ctx->adata.keylen_pad; + data_len[1] = ctx->cdata.keylen; + + /* aead_encrypt shared descriptor */ + if (desc_inline_query((alg->caam.geniv ? DESC_QI_AEAD_GIVENC_LEN : + DESC_QI_AEAD_ENC_LEN) + + (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0), + DESC_JOB_IO_LEN, data_len, &inl_mask, + ARRAY_SIZE(data_len)) < 0) + return -EINVAL; + + ctx->adata.key_inline = !!(inl_mask & 1); + ctx->cdata.key_inline = !!(inl_mask & 2); + + flc = &ctx->flc[ENCRYPT]; + desc = flc->sh_desc; + + if (alg->caam.geniv) + cnstr_shdsc_aead_givencap(desc, &ctx->cdata, &ctx->adata, + ivsize, ctx->authsize, is_rfc3686, + nonce, ctx1_iv_off, true, + priv->sec_attr.era); + else + cnstr_shdsc_aead_encap(desc, &ctx->cdata, &ctx->adata, + ivsize, ctx->authsize, is_rfc3686, nonce, + ctx1_iv_off, true, priv->sec_attr.era); + + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[ENCRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + /* aead_decrypt shared descriptor */ + if (desc_inline_query(DESC_QI_AEAD_DEC_LEN + + (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0), + DESC_JOB_IO_LEN, data_len, &inl_mask, + ARRAY_SIZE(data_len)) < 0) + return -EINVAL; + + ctx->adata.key_inline = !!(inl_mask & 1); + ctx->cdata.key_inline = !!(inl_mask & 2); + + flc = &ctx->flc[DECRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_aead_decap(desc, &ctx->cdata, &ctx->adata, + ivsize, ctx->authsize, alg->caam.geniv, + is_rfc3686, nonce, ctx1_iv_off, true, + priv->sec_attr.era); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[DECRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + return 0; +} + +static int aead_setauthsize(struct crypto_aead *authenc, unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(authenc); + + ctx->authsize = authsize; + aead_set_sh_desc(authenc); + + return 0; +} + +static int aead_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct device *dev = ctx->dev; + struct crypto_authenc_keys keys; + + if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) + goto badkey; + + dev_dbg(dev, "keylen %d enckeylen %d authkeylen %d\n", + keys.authkeylen + keys.enckeylen, keys.enckeylen, + keys.authkeylen); + print_hex_dump_debug("key in @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + ctx->adata.keylen = keys.authkeylen; + ctx->adata.keylen_pad = split_key_len(ctx->adata.algtype & + OP_ALG_ALGSEL_MASK); + + if (ctx->adata.keylen_pad + keys.enckeylen > CAAM_MAX_KEY_SIZE) + goto badkey; + + memcpy(ctx->key, keys.authkey, keys.authkeylen); + memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey, keys.enckeylen); + dma_sync_single_for_device(dev, ctx->key_dma, ctx->adata.keylen_pad + + keys.enckeylen, ctx->dir); + print_hex_dump_debug("ctx.key@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, ctx->key, + ctx->adata.keylen_pad + keys.enckeylen, 1); + + ctx->cdata.keylen = keys.enckeylen; + + memzero_explicit(&keys, sizeof(keys)); + return aead_set_sh_desc(aead); +badkey: + memzero_explicit(&keys, sizeof(keys)); + return -EINVAL; +} + +static int des3_aead_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct crypto_authenc_keys keys; + int err; + + err = crypto_authenc_extractkeys(&keys, key, keylen); + if (unlikely(err)) + goto out; + + err = -EINVAL; + if (keys.enckeylen != DES3_EDE_KEY_SIZE) + goto out; + + err = crypto_des3_ede_verify_key(crypto_aead_tfm(aead), keys.enckey) ?: + aead_setkey(aead, key, keylen); + +out: + memzero_explicit(&keys, sizeof(keys)); + return err; +} + +static struct aead_edesc *aead_edesc_alloc(struct aead_request *req, + bool encrypt) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_request *req_ctx = aead_request_ctx_dma(req); + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead), + typeof(*alg), aead); + struct device *dev = ctx->dev; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int src_nents, mapped_src_nents, dst_nents = 0, mapped_dst_nents = 0; + int src_len, dst_len = 0; + struct aead_edesc *edesc; + dma_addr_t qm_sg_dma, iv_dma = 0; + int ivsize = 0; + unsigned int authsize = ctx->authsize; + int qm_sg_index = 0, qm_sg_nents = 0, qm_sg_bytes; + int in_len, out_len; + struct dpaa2_sg_entry *sg_table; + + /* allocate space for base edesc, link tables and IV */ + edesc = qi_cache_zalloc(flags); + if (unlikely(!edesc)) { + dev_err(dev, "could not allocate extended descriptor\n"); + return ERR_PTR(-ENOMEM); + } + + if (unlikely(req->dst != req->src)) { + src_len = req->assoclen + req->cryptlen; + dst_len = src_len + (encrypt ? authsize : (-authsize)); + + src_nents = sg_nents_for_len(req->src, src_len); + if (unlikely(src_nents < 0)) { + dev_err(dev, "Insufficient bytes (%d) in src S/G\n", + src_len); + qi_cache_free(edesc); + return ERR_PTR(src_nents); + } + + dst_nents = sg_nents_for_len(req->dst, dst_len); + if (unlikely(dst_nents < 0)) { + dev_err(dev, "Insufficient bytes (%d) in dst S/G\n", + dst_len); + qi_cache_free(edesc); + return ERR_PTR(dst_nents); + } + + if (src_nents) { + mapped_src_nents = dma_map_sg(dev, req->src, src_nents, + DMA_TO_DEVICE); + if (unlikely(!mapped_src_nents)) { + dev_err(dev, "unable to map source\n"); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + } else { + mapped_src_nents = 0; + } + + if (dst_nents) { + mapped_dst_nents = dma_map_sg(dev, req->dst, dst_nents, + DMA_FROM_DEVICE); + if (unlikely(!mapped_dst_nents)) { + dev_err(dev, "unable to map destination\n"); + dma_unmap_sg(dev, req->src, src_nents, + DMA_TO_DEVICE); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + } else { + mapped_dst_nents = 0; + } + } else { + src_len = req->assoclen + req->cryptlen + + (encrypt ? authsize : 0); + + src_nents = sg_nents_for_len(req->src, src_len); + if (unlikely(src_nents < 0)) { + dev_err(dev, "Insufficient bytes (%d) in src S/G\n", + src_len); + qi_cache_free(edesc); + return ERR_PTR(src_nents); + } + + mapped_src_nents = dma_map_sg(dev, req->src, src_nents, + DMA_BIDIRECTIONAL); + if (unlikely(!mapped_src_nents)) { + dev_err(dev, "unable to map source\n"); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + } + + if ((alg->caam.rfc3686 && encrypt) || !alg->caam.geniv) + ivsize = crypto_aead_ivsize(aead); + + /* + * Create S/G table: req->assoclen, [IV,] req->src [, req->dst]. + * Input is not contiguous. + * HW reads 4 S/G entries at a time; make sure the reads don't go beyond + * the end of the table by allocating more S/G entries. Logic: + * if (src != dst && output S/G) + * pad output S/G, if needed + * else if (src == dst && S/G) + * overlapping S/Gs; pad one of them + * else if (input S/G) ... + * pad input S/G, if needed + */ + qm_sg_nents = 1 + !!ivsize + mapped_src_nents; + if (mapped_dst_nents > 1) + qm_sg_nents += pad_sg_nents(mapped_dst_nents); + else if ((req->src == req->dst) && (mapped_src_nents > 1)) + qm_sg_nents = max(pad_sg_nents(qm_sg_nents), + 1 + !!ivsize + + pad_sg_nents(mapped_src_nents)); + else + qm_sg_nents = pad_sg_nents(qm_sg_nents); + + sg_table = &edesc->sgt[0]; + qm_sg_bytes = qm_sg_nents * sizeof(*sg_table); + if (unlikely(offsetof(struct aead_edesc, sgt) + qm_sg_bytes + ivsize > + CAAM_QI_MEMCACHE_SIZE)) { + dev_err(dev, "No space for %d S/G entries and/or %dB IV\n", + qm_sg_nents, ivsize); + caam_unmap(dev, req->src, req->dst, src_nents, dst_nents, 0, + 0, DMA_NONE, 0, 0); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + + if (ivsize) { + u8 *iv = (u8 *)(sg_table + qm_sg_nents); + + /* Make sure IV is located in a DMAable area */ + memcpy(iv, req->iv, ivsize); + + iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE); + if (dma_mapping_error(dev, iv_dma)) { + dev_err(dev, "unable to map IV\n"); + caam_unmap(dev, req->src, req->dst, src_nents, + dst_nents, 0, 0, DMA_NONE, 0, 0); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + } + + edesc->src_nents = src_nents; + edesc->dst_nents = dst_nents; + edesc->iv_dma = iv_dma; + + if ((alg->caam.class1_alg_type & OP_ALG_ALGSEL_MASK) == + OP_ALG_ALGSEL_CHACHA20 && ivsize != CHACHAPOLY_IV_SIZE) + /* + * The associated data comes already with the IV but we need + * to skip it when we authenticate or encrypt... + */ + edesc->assoclen = cpu_to_caam32(req->assoclen - ivsize); + else + edesc->assoclen = cpu_to_caam32(req->assoclen); + edesc->assoclen_dma = dma_map_single(dev, &edesc->assoclen, 4, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, edesc->assoclen_dma)) { + dev_err(dev, "unable to map assoclen\n"); + caam_unmap(dev, req->src, req->dst, src_nents, dst_nents, + iv_dma, ivsize, DMA_TO_DEVICE, 0, 0); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + + dma_to_qm_sg_one(sg_table, edesc->assoclen_dma, 4, 0); + qm_sg_index++; + if (ivsize) { + dma_to_qm_sg_one(sg_table + qm_sg_index, iv_dma, ivsize, 0); + qm_sg_index++; + } + sg_to_qm_sg_last(req->src, src_len, sg_table + qm_sg_index, 0); + qm_sg_index += mapped_src_nents; + + if (mapped_dst_nents > 1) + sg_to_qm_sg_last(req->dst, dst_len, sg_table + qm_sg_index, 0); + + qm_sg_dma = dma_map_single(dev, sg_table, qm_sg_bytes, DMA_TO_DEVICE); + if (dma_mapping_error(dev, qm_sg_dma)) { + dev_err(dev, "unable to map S/G table\n"); + dma_unmap_single(dev, edesc->assoclen_dma, 4, DMA_TO_DEVICE); + caam_unmap(dev, req->src, req->dst, src_nents, dst_nents, + iv_dma, ivsize, DMA_TO_DEVICE, 0, 0); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + + edesc->qm_sg_dma = qm_sg_dma; + edesc->qm_sg_bytes = qm_sg_bytes; + + out_len = req->assoclen + req->cryptlen + + (encrypt ? ctx->authsize : (-ctx->authsize)); + in_len = 4 + ivsize + req->assoclen + req->cryptlen; + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, qm_sg_dma); + dpaa2_fl_set_len(in_fle, in_len); + + if (req->dst == req->src) { + if (mapped_src_nents == 1) { + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, sg_dma_address(req->src)); + } else { + dpaa2_fl_set_format(out_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(out_fle, qm_sg_dma + + (1 + !!ivsize) * sizeof(*sg_table)); + } + } else if (!mapped_dst_nents) { + /* + * crypto engine requires the output entry to be present when + * "frame list" FD is used. + * Since engine does not support FMT=2'b11 (unused entry type), + * leaving out_fle zeroized is the best option. + */ + goto skip_out_fle; + } else if (mapped_dst_nents == 1) { + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, sg_dma_address(req->dst)); + } else { + dpaa2_fl_set_format(out_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(out_fle, qm_sg_dma + qm_sg_index * + sizeof(*sg_table)); + } + + dpaa2_fl_set_len(out_fle, out_len); + +skip_out_fle: + return edesc; +} + +static int chachapoly_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + unsigned int ivsize = crypto_aead_ivsize(aead); + struct device *dev = ctx->dev; + struct caam_flc *flc; + u32 *desc; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + flc = &ctx->flc[ENCRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_chachapoly(desc, &ctx->cdata, &ctx->adata, ivsize, + ctx->authsize, true, true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[ENCRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + flc = &ctx->flc[DECRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_chachapoly(desc, &ctx->cdata, &ctx->adata, ivsize, + ctx->authsize, false, true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[DECRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + return 0; +} + +static int chachapoly_setauthsize(struct crypto_aead *aead, + unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + + if (authsize != POLY1305_DIGEST_SIZE) + return -EINVAL; + + ctx->authsize = authsize; + return chachapoly_set_sh_desc(aead); +} + +static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + unsigned int ivsize = crypto_aead_ivsize(aead); + unsigned int saltlen = CHACHAPOLY_IV_SIZE - ivsize; + + if (keylen != CHACHA_KEY_SIZE + saltlen) + return -EINVAL; + + memcpy(ctx->key, key, keylen); + ctx->cdata.key_virt = ctx->key; + ctx->cdata.keylen = keylen - saltlen; + + return chachapoly_set_sh_desc(aead); +} + +static int gcm_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct device *dev = ctx->dev; + unsigned int ivsize = crypto_aead_ivsize(aead); + struct caam_flc *flc; + u32 *desc; + int rem_bytes = CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN - + ctx->cdata.keylen; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + /* + * AES GCM encrypt shared descriptor + * Job Descriptor and Shared Descriptor + * must fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_QI_GCM_ENC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + flc = &ctx->flc[ENCRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_gcm_encap(desc, &ctx->cdata, ivsize, ctx->authsize, true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[ENCRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_QI_GCM_DEC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + flc = &ctx->flc[DECRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_gcm_decap(desc, &ctx->cdata, ivsize, ctx->authsize, true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[DECRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + return 0; +} + +static int gcm_setauthsize(struct crypto_aead *authenc, unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(authenc); + int err; + + err = crypto_gcm_check_authsize(authsize); + if (err) + return err; + + ctx->authsize = authsize; + gcm_set_sh_desc(authenc); + + return 0; +} + +static int gcm_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct device *dev = ctx->dev; + int ret; + + ret = aes_check_keylen(keylen); + if (ret) + return ret; + print_hex_dump_debug("key in @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + memcpy(ctx->key, key, keylen); + dma_sync_single_for_device(dev, ctx->key_dma, keylen, ctx->dir); + ctx->cdata.keylen = keylen; + + return gcm_set_sh_desc(aead); +} + +static int rfc4106_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct device *dev = ctx->dev; + unsigned int ivsize = crypto_aead_ivsize(aead); + struct caam_flc *flc; + u32 *desc; + int rem_bytes = CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN - + ctx->cdata.keylen; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + ctx->cdata.key_virt = ctx->key; + + /* + * RFC4106 encrypt shared descriptor + * Job Descriptor and Shared Descriptor + * must fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_QI_RFC4106_ENC_LEN) { + ctx->cdata.key_inline = true; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + flc = &ctx->flc[ENCRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_rfc4106_encap(desc, &ctx->cdata, ivsize, ctx->authsize, + true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[ENCRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_QI_RFC4106_DEC_LEN) { + ctx->cdata.key_inline = true; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + flc = &ctx->flc[DECRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_rfc4106_decap(desc, &ctx->cdata, ivsize, ctx->authsize, + true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[DECRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + return 0; +} + +static int rfc4106_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(authenc); + int err; + + err = crypto_rfc4106_check_authsize(authsize); + if (err) + return err; + + ctx->authsize = authsize; + rfc4106_set_sh_desc(authenc); + + return 0; +} + +static int rfc4106_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct device *dev = ctx->dev; + int ret; + + ret = aes_check_keylen(keylen - 4); + if (ret) + return ret; + + print_hex_dump_debug("key in @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + memcpy(ctx->key, key, keylen); + /* + * The last four bytes of the key material are used as the salt value + * in the nonce. Update the AES key length. + */ + ctx->cdata.keylen = keylen - 4; + dma_sync_single_for_device(dev, ctx->key_dma, ctx->cdata.keylen, + ctx->dir); + + return rfc4106_set_sh_desc(aead); +} + +static int rfc4543_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct device *dev = ctx->dev; + unsigned int ivsize = crypto_aead_ivsize(aead); + struct caam_flc *flc; + u32 *desc; + int rem_bytes = CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN - + ctx->cdata.keylen; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + ctx->cdata.key_virt = ctx->key; + + /* + * RFC4543 encrypt shared descriptor + * Job Descriptor and Shared Descriptor + * must fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_QI_RFC4543_ENC_LEN) { + ctx->cdata.key_inline = true; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + flc = &ctx->flc[ENCRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_rfc4543_encap(desc, &ctx->cdata, ivsize, ctx->authsize, + true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[ENCRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_QI_RFC4543_DEC_LEN) { + ctx->cdata.key_inline = true; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + flc = &ctx->flc[DECRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_rfc4543_decap(desc, &ctx->cdata, ivsize, ctx->authsize, + true); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[DECRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + return 0; +} + +static int rfc4543_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(authenc); + + if (authsize != 16) + return -EINVAL; + + ctx->authsize = authsize; + rfc4543_set_sh_desc(authenc); + + return 0; +} + +static int rfc4543_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct device *dev = ctx->dev; + int ret; + + ret = aes_check_keylen(keylen - 4); + if (ret) + return ret; + + print_hex_dump_debug("key in @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + memcpy(ctx->key, key, keylen); + /* + * The last four bytes of the key material are used as the salt value + * in the nonce. Update the AES key length. + */ + ctx->cdata.keylen = keylen - 4; + dma_sync_single_for_device(dev, ctx->key_dma, ctx->cdata.keylen, + ctx->dir); + + return rfc4543_set_sh_desc(aead); +} + +static int skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, + unsigned int keylen, const u32 ctx1_iv_off) +{ + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(skcipher); + struct caam_skcipher_alg *alg = + container_of(crypto_skcipher_alg(skcipher), + struct caam_skcipher_alg, skcipher); + struct device *dev = ctx->dev; + struct caam_flc *flc; + unsigned int ivsize = crypto_skcipher_ivsize(skcipher); + u32 *desc; + const bool is_rfc3686 = alg->caam.rfc3686; + + print_hex_dump_debug("key in @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + ctx->cdata.keylen = keylen; + ctx->cdata.key_virt = key; + ctx->cdata.key_inline = true; + + /* skcipher_encrypt shared descriptor */ + flc = &ctx->flc[ENCRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_skcipher_encap(desc, &ctx->cdata, ivsize, is_rfc3686, + ctx1_iv_off); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[ENCRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + /* skcipher_decrypt shared descriptor */ + flc = &ctx->flc[DECRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_skcipher_decap(desc, &ctx->cdata, ivsize, is_rfc3686, + ctx1_iv_off); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[DECRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + return 0; +} + +static int aes_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + int err; + + err = aes_check_keylen(keylen); + if (err) + return err; + + return skcipher_setkey(skcipher, key, keylen, 0); +} + +static int rfc3686_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + u32 ctx1_iv_off; + int err; + + /* + * RFC3686 specific: + * | CONTEXT1[255:128] = {NONCE, IV, COUNTER} + * | *key = {KEY, NONCE} + */ + ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE; + keylen -= CTR_RFC3686_NONCE_SIZE; + + err = aes_check_keylen(keylen); + if (err) + return err; + + return skcipher_setkey(skcipher, key, keylen, ctx1_iv_off); +} + +static int ctr_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + u32 ctx1_iv_off; + int err; + + /* + * AES-CTR needs to load IV in CONTEXT1 reg + * at an offset of 128bits (16bytes) + * CONTEXT1[255:128] = IV + */ + ctx1_iv_off = 16; + + err = aes_check_keylen(keylen); + if (err) + return err; + + return skcipher_setkey(skcipher, key, keylen, ctx1_iv_off); +} + +static int chacha20_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + if (keylen != CHACHA_KEY_SIZE) + return -EINVAL; + + return skcipher_setkey(skcipher, key, keylen, 0); +} + +static int des_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + return verify_skcipher_des_key(skcipher, key) ?: + skcipher_setkey(skcipher, key, keylen, 0); +} + +static int des3_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + return verify_skcipher_des3_key(skcipher, key) ?: + skcipher_setkey(skcipher, key, keylen, 0); +} + +static int xts_skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, + unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(skcipher); + struct device *dev = ctx->dev; + struct dpaa2_caam_priv *priv = dev_get_drvdata(dev); + struct caam_flc *flc; + u32 *desc; + int err; + + err = xts_verify_key(skcipher, key, keylen); + if (err) { + dev_dbg(dev, "key size mismatch\n"); + return err; + } + + if (keylen != 2 * AES_KEYSIZE_128 && keylen != 2 * AES_KEYSIZE_256) + ctx->xts_key_fallback = true; + + if (priv->sec_attr.era <= 8 || ctx->xts_key_fallback) { + err = crypto_skcipher_setkey(ctx->fallback, key, keylen); + if (err) + return err; + } + + ctx->cdata.keylen = keylen; + ctx->cdata.key_virt = key; + ctx->cdata.key_inline = true; + + /* xts_skcipher_encrypt shared descriptor */ + flc = &ctx->flc[ENCRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_xts_skcipher_encap(desc, &ctx->cdata); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[ENCRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + /* xts_skcipher_decrypt shared descriptor */ + flc = &ctx->flc[DECRYPT]; + desc = flc->sh_desc; + cnstr_shdsc_xts_skcipher_decap(desc, &ctx->cdata); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(dev, ctx->flc_dma[DECRYPT], + sizeof(flc->flc) + desc_bytes(desc), + ctx->dir); + + return 0; +} + +static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req) +{ + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_request *req_ctx = skcipher_request_ctx_dma(req); + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(skcipher); + struct device *dev = ctx->dev; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int src_nents, mapped_src_nents, dst_nents = 0, mapped_dst_nents = 0; + struct skcipher_edesc *edesc; + dma_addr_t iv_dma; + u8 *iv; + int ivsize = crypto_skcipher_ivsize(skcipher); + int dst_sg_idx, qm_sg_ents, qm_sg_bytes; + struct dpaa2_sg_entry *sg_table; + + src_nents = sg_nents_for_len(req->src, req->cryptlen); + if (unlikely(src_nents < 0)) { + dev_err(dev, "Insufficient bytes (%d) in src S/G\n", + req->cryptlen); + return ERR_PTR(src_nents); + } + + if (unlikely(req->dst != req->src)) { + dst_nents = sg_nents_for_len(req->dst, req->cryptlen); + if (unlikely(dst_nents < 0)) { + dev_err(dev, "Insufficient bytes (%d) in dst S/G\n", + req->cryptlen); + return ERR_PTR(dst_nents); + } + + mapped_src_nents = dma_map_sg(dev, req->src, src_nents, + DMA_TO_DEVICE); + if (unlikely(!mapped_src_nents)) { + dev_err(dev, "unable to map source\n"); + return ERR_PTR(-ENOMEM); + } + + mapped_dst_nents = dma_map_sg(dev, req->dst, dst_nents, + DMA_FROM_DEVICE); + if (unlikely(!mapped_dst_nents)) { + dev_err(dev, "unable to map destination\n"); + dma_unmap_sg(dev, req->src, src_nents, DMA_TO_DEVICE); + return ERR_PTR(-ENOMEM); + } + } else { + mapped_src_nents = dma_map_sg(dev, req->src, src_nents, + DMA_BIDIRECTIONAL); + if (unlikely(!mapped_src_nents)) { + dev_err(dev, "unable to map source\n"); + return ERR_PTR(-ENOMEM); + } + } + + qm_sg_ents = 1 + mapped_src_nents; + dst_sg_idx = qm_sg_ents; + + /* + * Input, output HW S/G tables: [IV, src][dst, IV] + * IV entries point to the same buffer + * If src == dst, S/G entries are reused (S/G tables overlap) + * + * HW reads 4 S/G entries at a time; make sure the reads don't go beyond + * the end of the table by allocating more S/G entries. + */ + if (req->src != req->dst) + qm_sg_ents += pad_sg_nents(mapped_dst_nents + 1); + else + qm_sg_ents = 1 + pad_sg_nents(qm_sg_ents); + + qm_sg_bytes = qm_sg_ents * sizeof(struct dpaa2_sg_entry); + if (unlikely(offsetof(struct skcipher_edesc, sgt) + qm_sg_bytes + + ivsize > CAAM_QI_MEMCACHE_SIZE)) { + dev_err(dev, "No space for %d S/G entries and/or %dB IV\n", + qm_sg_ents, ivsize); + caam_unmap(dev, req->src, req->dst, src_nents, dst_nents, 0, + 0, DMA_NONE, 0, 0); + return ERR_PTR(-ENOMEM); + } + + /* allocate space for base edesc, link tables and IV */ + edesc = qi_cache_zalloc(flags); + if (unlikely(!edesc)) { + dev_err(dev, "could not allocate extended descriptor\n"); + caam_unmap(dev, req->src, req->dst, src_nents, dst_nents, 0, + 0, DMA_NONE, 0, 0); + return ERR_PTR(-ENOMEM); + } + + /* Make sure IV is located in a DMAable area */ + sg_table = &edesc->sgt[0]; + iv = (u8 *)(sg_table + qm_sg_ents); + memcpy(iv, req->iv, ivsize); + + iv_dma = dma_map_single(dev, iv, ivsize, DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, iv_dma)) { + dev_err(dev, "unable to map IV\n"); + caam_unmap(dev, req->src, req->dst, src_nents, dst_nents, 0, + 0, DMA_NONE, 0, 0); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + + edesc->src_nents = src_nents; + edesc->dst_nents = dst_nents; + edesc->iv_dma = iv_dma; + edesc->qm_sg_bytes = qm_sg_bytes; + + dma_to_qm_sg_one(sg_table, iv_dma, ivsize, 0); + sg_to_qm_sg(req->src, req->cryptlen, sg_table + 1, 0); + + if (req->src != req->dst) + sg_to_qm_sg(req->dst, req->cryptlen, sg_table + dst_sg_idx, 0); + + dma_to_qm_sg_one(sg_table + dst_sg_idx + mapped_dst_nents, iv_dma, + ivsize, 0); + + edesc->qm_sg_dma = dma_map_single(dev, sg_table, edesc->qm_sg_bytes, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, edesc->qm_sg_dma)) { + dev_err(dev, "unable to map S/G table\n"); + caam_unmap(dev, req->src, req->dst, src_nents, dst_nents, + iv_dma, ivsize, DMA_BIDIRECTIONAL, 0, 0); + qi_cache_free(edesc); + return ERR_PTR(-ENOMEM); + } + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_len(in_fle, req->cryptlen + ivsize); + dpaa2_fl_set_len(out_fle, req->cryptlen + ivsize); + + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + + dpaa2_fl_set_format(out_fle, dpaa2_fl_sg); + + if (req->src == req->dst) + dpaa2_fl_set_addr(out_fle, edesc->qm_sg_dma + + sizeof(*sg_table)); + else + dpaa2_fl_set_addr(out_fle, edesc->qm_sg_dma + dst_sg_idx * + sizeof(*sg_table)); + + return edesc; +} + +static void aead_unmap(struct device *dev, struct aead_edesc *edesc, + struct aead_request *req) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + int ivsize = crypto_aead_ivsize(aead); + + caam_unmap(dev, req->src, req->dst, edesc->src_nents, edesc->dst_nents, + edesc->iv_dma, ivsize, DMA_TO_DEVICE, edesc->qm_sg_dma, + edesc->qm_sg_bytes); + dma_unmap_single(dev, edesc->assoclen_dma, 4, DMA_TO_DEVICE); +} + +static void skcipher_unmap(struct device *dev, struct skcipher_edesc *edesc, + struct skcipher_request *req) +{ + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + int ivsize = crypto_skcipher_ivsize(skcipher); + + caam_unmap(dev, req->src, req->dst, edesc->src_nents, edesc->dst_nents, + edesc->iv_dma, ivsize, DMA_BIDIRECTIONAL, edesc->qm_sg_dma, + edesc->qm_sg_bytes); +} + +static void aead_encrypt_done(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct aead_request *req = container_of(areq, struct aead_request, + base); + struct caam_request *req_ctx = to_caam_req(areq); + struct aead_edesc *edesc = req_ctx->edesc; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + int ecode = 0; + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + aead_unmap(ctx->dev, edesc, req); + qi_cache_free(edesc); + aead_request_complete(req, ecode); +} + +static void aead_decrypt_done(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct aead_request *req = container_of(areq, struct aead_request, + base); + struct caam_request *req_ctx = to_caam_req(areq); + struct aead_edesc *edesc = req_ctx->edesc; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + int ecode = 0; + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + aead_unmap(ctx->dev, edesc, req); + qi_cache_free(edesc); + aead_request_complete(req, ecode); +} + +static int aead_encrypt(struct aead_request *req) +{ + struct aead_edesc *edesc; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct caam_request *caam_req = aead_request_ctx_dma(req); + int ret; + + /* allocate extended descriptor */ + edesc = aead_edesc_alloc(req, true); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + caam_req->flc = &ctx->flc[ENCRYPT]; + caam_req->flc_dma = ctx->flc_dma[ENCRYPT]; + caam_req->cbk = aead_encrypt_done; + caam_req->ctx = &req->base; + caam_req->edesc = edesc; + ret = dpaa2_caam_enqueue(ctx->dev, caam_req); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { + aead_unmap(ctx->dev, edesc, req); + qi_cache_free(edesc); + } + + return ret; +} + +static int aead_decrypt(struct aead_request *req) +{ + struct aead_edesc *edesc; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx_dma(aead); + struct caam_request *caam_req = aead_request_ctx_dma(req); + int ret; + + /* allocate extended descriptor */ + edesc = aead_edesc_alloc(req, false); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + caam_req->flc = &ctx->flc[DECRYPT]; + caam_req->flc_dma = ctx->flc_dma[DECRYPT]; + caam_req->cbk = aead_decrypt_done; + caam_req->ctx = &req->base; + caam_req->edesc = edesc; + ret = dpaa2_caam_enqueue(ctx->dev, caam_req); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { + aead_unmap(ctx->dev, edesc, req); + qi_cache_free(edesc); + } + + return ret; +} + +static int ipsec_gcm_encrypt(struct aead_request *req) +{ + return crypto_ipsec_check_assoclen(req->assoclen) ? : aead_encrypt(req); +} + +static int ipsec_gcm_decrypt(struct aead_request *req) +{ + return crypto_ipsec_check_assoclen(req->assoclen) ? : aead_decrypt(req); +} + +static void skcipher_encrypt_done(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct skcipher_request *req = skcipher_request_cast(areq); + struct caam_request *req_ctx = to_caam_req(areq); + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(skcipher); + struct skcipher_edesc *edesc = req_ctx->edesc; + int ecode = 0; + int ivsize = crypto_skcipher_ivsize(skcipher); + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->iv, + edesc->src_nents > 1 ? 100 : ivsize, 1); + caam_dump_sg("dst @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->dst, + edesc->dst_nents > 1 ? 100 : req->cryptlen, 1); + + skcipher_unmap(ctx->dev, edesc, req); + + /* + * The crypto API expects us to set the IV (req->iv) to the last + * ciphertext block (CBC mode) or last counter (CTR mode). + * This is used e.g. by the CTS mode. + */ + if (!ecode) + memcpy(req->iv, (u8 *)&edesc->sgt[0] + edesc->qm_sg_bytes, + ivsize); + + qi_cache_free(edesc); + skcipher_request_complete(req, ecode); +} + +static void skcipher_decrypt_done(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct skcipher_request *req = skcipher_request_cast(areq); + struct caam_request *req_ctx = to_caam_req(areq); + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(skcipher); + struct skcipher_edesc *edesc = req_ctx->edesc; + int ecode = 0; + int ivsize = crypto_skcipher_ivsize(skcipher); + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->iv, + edesc->src_nents > 1 ? 100 : ivsize, 1); + caam_dump_sg("dst @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->dst, + edesc->dst_nents > 1 ? 100 : req->cryptlen, 1); + + skcipher_unmap(ctx->dev, edesc, req); + + /* + * The crypto API expects us to set the IV (req->iv) to the last + * ciphertext block (CBC mode) or last counter (CTR mode). + * This is used e.g. by the CTS mode. + */ + if (!ecode) + memcpy(req->iv, (u8 *)&edesc->sgt[0] + edesc->qm_sg_bytes, + ivsize); + + qi_cache_free(edesc); + skcipher_request_complete(req, ecode); +} + +static inline bool xts_skcipher_ivsize(struct skcipher_request *req) +{ + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + unsigned int ivsize = crypto_skcipher_ivsize(skcipher); + + return !!get_unaligned((u64 *)(req->iv + (ivsize / 2))); +} + +static int skcipher_encrypt(struct skcipher_request *req) +{ + struct skcipher_edesc *edesc; + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(skcipher); + struct caam_request *caam_req = skcipher_request_ctx_dma(req); + struct dpaa2_caam_priv *priv = dev_get_drvdata(ctx->dev); + int ret; + + /* + * XTS is expected to return an error even for input length = 0 + * Note that the case input length < block size will be caught during + * HW offloading and return an error. + */ + if (!req->cryptlen && !ctx->fallback) + return 0; + + if (ctx->fallback && ((priv->sec_attr.era <= 8 && xts_skcipher_ivsize(req)) || + ctx->xts_key_fallback)) { + skcipher_request_set_tfm(&caam_req->fallback_req, ctx->fallback); + skcipher_request_set_callback(&caam_req->fallback_req, + req->base.flags, + req->base.complete, + req->base.data); + skcipher_request_set_crypt(&caam_req->fallback_req, req->src, + req->dst, req->cryptlen, req->iv); + + return crypto_skcipher_encrypt(&caam_req->fallback_req); + } + + /* allocate extended descriptor */ + edesc = skcipher_edesc_alloc(req); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + caam_req->flc = &ctx->flc[ENCRYPT]; + caam_req->flc_dma = ctx->flc_dma[ENCRYPT]; + caam_req->cbk = skcipher_encrypt_done; + caam_req->ctx = &req->base; + caam_req->edesc = edesc; + ret = dpaa2_caam_enqueue(ctx->dev, caam_req); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { + skcipher_unmap(ctx->dev, edesc, req); + qi_cache_free(edesc); + } + + return ret; +} + +static int skcipher_decrypt(struct skcipher_request *req) +{ + struct skcipher_edesc *edesc; + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(skcipher); + struct caam_request *caam_req = skcipher_request_ctx_dma(req); + struct dpaa2_caam_priv *priv = dev_get_drvdata(ctx->dev); + int ret; + + /* + * XTS is expected to return an error even for input length = 0 + * Note that the case input length < block size will be caught during + * HW offloading and return an error. + */ + if (!req->cryptlen && !ctx->fallback) + return 0; + + if (ctx->fallback && ((priv->sec_attr.era <= 8 && xts_skcipher_ivsize(req)) || + ctx->xts_key_fallback)) { + skcipher_request_set_tfm(&caam_req->fallback_req, ctx->fallback); + skcipher_request_set_callback(&caam_req->fallback_req, + req->base.flags, + req->base.complete, + req->base.data); + skcipher_request_set_crypt(&caam_req->fallback_req, req->src, + req->dst, req->cryptlen, req->iv); + + return crypto_skcipher_decrypt(&caam_req->fallback_req); + } + + /* allocate extended descriptor */ + edesc = skcipher_edesc_alloc(req); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + caam_req->flc = &ctx->flc[DECRYPT]; + caam_req->flc_dma = ctx->flc_dma[DECRYPT]; + caam_req->cbk = skcipher_decrypt_done; + caam_req->ctx = &req->base; + caam_req->edesc = edesc; + ret = dpaa2_caam_enqueue(ctx->dev, caam_req); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { + skcipher_unmap(ctx->dev, edesc, req); + qi_cache_free(edesc); + } + + return ret; +} + +static int caam_cra_init(struct caam_ctx *ctx, struct caam_alg_entry *caam, + bool uses_dkp) +{ + dma_addr_t dma_addr; + int i; + + /* copy descriptor header template value */ + ctx->cdata.algtype = OP_TYPE_CLASS1_ALG | caam->class1_alg_type; + ctx->adata.algtype = OP_TYPE_CLASS2_ALG | caam->class2_alg_type; + + ctx->dev = caam->dev; + ctx->dir = uses_dkp ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE; + + dma_addr = dma_map_single_attrs(ctx->dev, ctx->flc, + offsetof(struct caam_ctx, flc_dma), + ctx->dir, DMA_ATTR_SKIP_CPU_SYNC); + if (dma_mapping_error(ctx->dev, dma_addr)) { + dev_err(ctx->dev, "unable to map key, shared descriptors\n"); + return -ENOMEM; + } + + for (i = 0; i < NUM_OP; i++) + ctx->flc_dma[i] = dma_addr + i * sizeof(ctx->flc[i]); + ctx->key_dma = dma_addr + NUM_OP * sizeof(ctx->flc[0]); + + return 0; +} + +static int caam_cra_init_skcipher(struct crypto_skcipher *tfm) +{ + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct caam_skcipher_alg *caam_alg = + container_of(alg, typeof(*caam_alg), skcipher); + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(tfm); + u32 alg_aai = caam_alg->caam.class1_alg_type & OP_ALG_AAI_MASK; + int ret = 0; + + if (alg_aai == OP_ALG_AAI_XTS) { + const char *tfm_name = crypto_tfm_alg_name(&tfm->base); + struct crypto_skcipher *fallback; + + fallback = crypto_alloc_skcipher(tfm_name, 0, + CRYPTO_ALG_NEED_FALLBACK); + if (IS_ERR(fallback)) { + dev_err(caam_alg->caam.dev, + "Failed to allocate %s fallback: %ld\n", + tfm_name, PTR_ERR(fallback)); + return PTR_ERR(fallback); + } + + ctx->fallback = fallback; + crypto_skcipher_set_reqsize_dma( + tfm, sizeof(struct caam_request) + + crypto_skcipher_reqsize(fallback)); + } else { + crypto_skcipher_set_reqsize_dma(tfm, + sizeof(struct caam_request)); + } + + ret = caam_cra_init(ctx, &caam_alg->caam, false); + if (ret && ctx->fallback) + crypto_free_skcipher(ctx->fallback); + + return ret; +} + +static int caam_cra_init_aead(struct crypto_aead *tfm) +{ + struct aead_alg *alg = crypto_aead_alg(tfm); + struct caam_aead_alg *caam_alg = container_of(alg, typeof(*caam_alg), + aead); + + crypto_aead_set_reqsize_dma(tfm, sizeof(struct caam_request)); + return caam_cra_init(crypto_aead_ctx_dma(tfm), &caam_alg->caam, + !caam_alg->caam.nodkp); +} + +static void caam_exit_common(struct caam_ctx *ctx) +{ + dma_unmap_single_attrs(ctx->dev, ctx->flc_dma[0], + offsetof(struct caam_ctx, flc_dma), ctx->dir, + DMA_ATTR_SKIP_CPU_SYNC); +} + +static void caam_cra_exit(struct crypto_skcipher *tfm) +{ + struct caam_ctx *ctx = crypto_skcipher_ctx_dma(tfm); + + if (ctx->fallback) + crypto_free_skcipher(ctx->fallback); + caam_exit_common(ctx); +} + +static void caam_cra_exit_aead(struct crypto_aead *tfm) +{ + caam_exit_common(crypto_aead_ctx_dma(tfm)); +} + +static struct caam_skcipher_alg driver_algs[] = { + { + .skcipher = { + .base = { + .cra_name = "cbc(aes)", + .cra_driver_name = "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aes_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + }, + { + .skcipher = { + .base = { + .cra_name = "cbc(des3_ede)", + .cra_driver_name = "cbc-3des-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .ivsize = DES3_EDE_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + }, + { + .skcipher = { + .base = { + .cra_name = "cbc(des)", + .cra_driver_name = "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = des_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + }, + { + .skcipher = { + .base = { + .cra_name = "ctr(aes)", + .cra_driver_name = "ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = ctr_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .chunksize = AES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + }, + { + .skcipher = { + .base = { + .cra_name = "rfc3686(ctr(aes))", + .cra_driver_name = "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = rfc3686_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = AES_MIN_KEY_SIZE + + CTR_RFC3686_NONCE_SIZE, + .max_keysize = AES_MAX_KEY_SIZE + + CTR_RFC3686_NONCE_SIZE, + .ivsize = CTR_RFC3686_IV_SIZE, + .chunksize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .rfc3686 = true, + }, + }, + { + .skcipher = { + .base = { + .cra_name = "xts(aes)", + .cra_driver_name = "xts-aes-caam-qi2", + .cra_flags = CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = xts_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = 2 * AES_MIN_KEY_SIZE, + .max_keysize = 2 * AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_XTS, + }, + { + .skcipher = { + .base = { + .cra_name = "chacha20", + .cra_driver_name = "chacha20-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = chacha20_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = CHACHA_KEY_SIZE, + .max_keysize = CHACHA_KEY_SIZE, + .ivsize = CHACHA_IV_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_CHACHA20, + }, +}; + +static struct caam_aead_alg driver_aeads[] = { + { + .aead = { + .base = { + .cra_name = "rfc4106(gcm(aes))", + .cra_driver_name = "rfc4106-gcm-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = rfc4106_setkey, + .setauthsize = rfc4106_setauthsize, + .encrypt = ipsec_gcm_encrypt, + .decrypt = ipsec_gcm_decrypt, + .ivsize = 8, + .maxauthsize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM, + .nodkp = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "rfc4543(gcm(aes))", + .cra_driver_name = "rfc4543-gcm-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = rfc4543_setkey, + .setauthsize = rfc4543_setauthsize, + .encrypt = ipsec_gcm_encrypt, + .decrypt = ipsec_gcm_decrypt, + .ivsize = 8, + .maxauthsize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM, + .nodkp = true, + }, + }, + /* Galois Counter Mode */ + { + .aead = { + .base = { + .cra_name = "gcm(aes)", + .cra_driver_name = "gcm-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = gcm_setkey, + .setauthsize = gcm_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = 12, + .maxauthsize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM, + .nodkp = true, + } + }, + /* single-pass ipsec_esp descriptor */ + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(aes))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(md5)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-hmac-md5-" + "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha1)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha1-cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha224-" + "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha224)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha224-cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha256)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha256-cbc-aes-" + "caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha384-" + "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha384)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha384-cbc-aes-" + "caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha512-" + "cbc-aes-caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha512)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha512-cbc-aes-" + "caam-qi2", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(md5)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-hmac-md5-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha1)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha1-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha224-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha224)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha224-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha256)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha256-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha384-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha384)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha384-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha512-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha512)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha512-" + "cbc-des3_ede-caam-qi2", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(des))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(md5)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-hmac-md5-" + "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1),cbc(des))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha1)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha1-cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224),cbc(des))", + .cra_driver_name = "authenc-hmac-sha224-" + "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha224)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha224-cbc-des-" + "caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256),cbc(des))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha256)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha256-cbc-des-" + "caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384),cbc(des))", + .cra_driver_name = "authenc-hmac-sha384-" + "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha384)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha384-cbc-des-" + "caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512),cbc(des))", + .cra_driver_name = "authenc-hmac-sha512-" + "cbc-des-caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha512)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha512-cbc-des-" + "caam-qi2", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-md5-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(" + "hmac(md5),rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-md5-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha1-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(" + "hmac(sha1),rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha1-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha224-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(" + "hmac(sha224),rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha224-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha256-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(hmac(sha256)," + "rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha256-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha384-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(hmac(sha384)," + "rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha384-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "rfc7539(chacha20,poly1305)", + .cra_driver_name = "rfc7539-chacha20-poly1305-" + "caam-qi2", + .cra_blocksize = 1, + }, + .setkey = chachapoly_setkey, + .setauthsize = chachapoly_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CHACHAPOLY_IV_SIZE, + .maxauthsize = POLY1305_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_CHACHA20 | + OP_ALG_AAI_AEAD, + .class2_alg_type = OP_ALG_ALGSEL_POLY1305 | + OP_ALG_AAI_AEAD, + .nodkp = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "rfc7539esp(chacha20,poly1305)", + .cra_driver_name = "rfc7539esp-chacha20-" + "poly1305-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = chachapoly_setkey, + .setauthsize = chachapoly_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = 8, + .maxauthsize = POLY1305_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_CHACHA20 | + OP_ALG_AAI_AEAD, + .class2_alg_type = OP_ALG_ALGSEL_POLY1305 | + OP_ALG_AAI_AEAD, + .nodkp = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha512-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(hmac(sha512)," + "rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha512-" + "rfc3686-ctr-aes-caam-qi2", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, +}; + +static void caam_skcipher_alg_init(struct caam_skcipher_alg *t_alg) +{ + struct skcipher_alg *alg = &t_alg->skcipher; + + alg->base.cra_module = THIS_MODULE; + alg->base.cra_priority = CAAM_CRA_PRIORITY; + alg->base.cra_ctxsize = sizeof(struct caam_ctx) + crypto_dma_padding(); + alg->base.cra_flags |= (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY | + CRYPTO_ALG_KERN_DRIVER_ONLY); + + alg->init = caam_cra_init_skcipher; + alg->exit = caam_cra_exit; +} + +static void caam_aead_alg_init(struct caam_aead_alg *t_alg) +{ + struct aead_alg *alg = &t_alg->aead; + + alg->base.cra_module = THIS_MODULE; + alg->base.cra_priority = CAAM_CRA_PRIORITY; + alg->base.cra_ctxsize = sizeof(struct caam_ctx) + crypto_dma_padding(); + alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY | + CRYPTO_ALG_KERN_DRIVER_ONLY; + + alg->init = caam_cra_init_aead; + alg->exit = caam_cra_exit_aead; +} + +/* max hash key is max split key size */ +#define CAAM_MAX_HASH_KEY_SIZE (SHA512_DIGEST_SIZE * 2) + +#define CAAM_MAX_HASH_BLOCK_SIZE SHA512_BLOCK_SIZE + +/* caam context sizes for hashes: running digest + 8 */ +#define HASH_MSG_LEN 8 +#define MAX_CTX_LEN (HASH_MSG_LEN + SHA512_DIGEST_SIZE) + +enum hash_optype { + UPDATE = 0, + UPDATE_FIRST, + FINALIZE, + DIGEST, + HASH_NUM_OP +}; + +/** + * struct caam_hash_ctx - ahash per-session context + * @flc: Flow Contexts array + * @key: authentication key + * @flc_dma: I/O virtual addresses of the Flow Contexts + * @dev: dpseci device + * @ctx_len: size of Context Register + * @adata: hashing algorithm details + */ +struct caam_hash_ctx { + struct caam_flc flc[HASH_NUM_OP]; + u8 key[CAAM_MAX_HASH_BLOCK_SIZE] ____cacheline_aligned; + dma_addr_t flc_dma[HASH_NUM_OP]; + struct device *dev; + int ctx_len; + struct alginfo adata; +}; + +/* ahash state */ +struct caam_hash_state { + struct caam_request caam_req; + dma_addr_t buf_dma; + dma_addr_t ctx_dma; + int ctx_dma_len; + u8 buf[CAAM_MAX_HASH_BLOCK_SIZE] ____cacheline_aligned; + int buflen; + int next_buflen; + u8 caam_ctx[MAX_CTX_LEN] ____cacheline_aligned; + int (*update)(struct ahash_request *req); + int (*final)(struct ahash_request *req); + int (*finup)(struct ahash_request *req); +}; + +struct caam_export_state { + u8 buf[CAAM_MAX_HASH_BLOCK_SIZE]; + u8 caam_ctx[MAX_CTX_LEN]; + int buflen; + int (*update)(struct ahash_request *req); + int (*final)(struct ahash_request *req); + int (*finup)(struct ahash_request *req); +}; + +/* Map current buffer in state (if length > 0) and put it in link table */ +static inline int buf_map_to_qm_sg(struct device *dev, + struct dpaa2_sg_entry *qm_sg, + struct caam_hash_state *state) +{ + int buflen = state->buflen; + + if (!buflen) + return 0; + + state->buf_dma = dma_map_single(dev, state->buf, buflen, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, state->buf_dma)) { + dev_err(dev, "unable to map buf\n"); + state->buf_dma = 0; + return -ENOMEM; + } + + dma_to_qm_sg_one(qm_sg, state->buf_dma, buflen, 0); + + return 0; +} + +/* Map state->caam_ctx, and add it to link table */ +static inline int ctx_map_to_qm_sg(struct device *dev, + struct caam_hash_state *state, int ctx_len, + struct dpaa2_sg_entry *qm_sg, u32 flag) +{ + state->ctx_dma_len = ctx_len; + state->ctx_dma = dma_map_single(dev, state->caam_ctx, ctx_len, flag); + if (dma_mapping_error(dev, state->ctx_dma)) { + dev_err(dev, "unable to map ctx\n"); + state->ctx_dma = 0; + return -ENOMEM; + } + + dma_to_qm_sg_one(qm_sg, state->ctx_dma, ctx_len, 0); + + return 0; +} + +static int ahash_set_sh_desc(struct crypto_ahash *ahash) +{ + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + int digestsize = crypto_ahash_digestsize(ahash); + struct dpaa2_caam_priv *priv = dev_get_drvdata(ctx->dev); + struct caam_flc *flc; + u32 *desc; + + /* ahash_update shared descriptor */ + flc = &ctx->flc[UPDATE]; + desc = flc->sh_desc; + cnstr_shdsc_ahash(desc, &ctx->adata, OP_ALG_AS_UPDATE, ctx->ctx_len, + ctx->ctx_len, true, priv->sec_attr.era); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(ctx->dev, ctx->flc_dma[UPDATE], + desc_bytes(desc), DMA_BIDIRECTIONAL); + print_hex_dump_debug("ahash update shdesc@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), + 1); + + /* ahash_update_first shared descriptor */ + flc = &ctx->flc[UPDATE_FIRST]; + desc = flc->sh_desc; + cnstr_shdsc_ahash(desc, &ctx->adata, OP_ALG_AS_INIT, ctx->ctx_len, + ctx->ctx_len, false, priv->sec_attr.era); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(ctx->dev, ctx->flc_dma[UPDATE_FIRST], + desc_bytes(desc), DMA_BIDIRECTIONAL); + print_hex_dump_debug("ahash update first shdesc@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), + 1); + + /* ahash_final shared descriptor */ + flc = &ctx->flc[FINALIZE]; + desc = flc->sh_desc; + cnstr_shdsc_ahash(desc, &ctx->adata, OP_ALG_AS_FINALIZE, digestsize, + ctx->ctx_len, true, priv->sec_attr.era); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(ctx->dev, ctx->flc_dma[FINALIZE], + desc_bytes(desc), DMA_BIDIRECTIONAL); + print_hex_dump_debug("ahash final shdesc@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), + 1); + + /* ahash_digest shared descriptor */ + flc = &ctx->flc[DIGEST]; + desc = flc->sh_desc; + cnstr_shdsc_ahash(desc, &ctx->adata, OP_ALG_AS_INITFINAL, digestsize, + ctx->ctx_len, false, priv->sec_attr.era); + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + dma_sync_single_for_device(ctx->dev, ctx->flc_dma[DIGEST], + desc_bytes(desc), DMA_BIDIRECTIONAL); + print_hex_dump_debug("ahash digest shdesc@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), + 1); + + return 0; +} + +struct split_key_sh_result { + struct completion completion; + int err; + struct device *dev; +}; + +static void split_key_sh_done(void *cbk_ctx, u32 err) +{ + struct split_key_sh_result *res = cbk_ctx; + + dev_dbg(res->dev, "%s %d: err 0x%x\n", __func__, __LINE__, err); + + res->err = err ? caam_qi2_strstatus(res->dev, err) : 0; + complete(&res->completion); +} + +/* Digest hash size if it is too large */ +static int hash_digest_key(struct caam_hash_ctx *ctx, u32 *keylen, u8 *key, + u32 digestsize) +{ + struct caam_request *req_ctx; + u32 *desc; + struct split_key_sh_result result; + dma_addr_t key_dma; + struct caam_flc *flc; + dma_addr_t flc_dma; + int ret = -ENOMEM; + struct dpaa2_fl_entry *in_fle, *out_fle; + + req_ctx = kzalloc(sizeof(*req_ctx), GFP_KERNEL); + if (!req_ctx) + return -ENOMEM; + + in_fle = &req_ctx->fd_flt[1]; + out_fle = &req_ctx->fd_flt[0]; + + flc = kzalloc(sizeof(*flc), GFP_KERNEL); + if (!flc) + goto err_flc; + + key_dma = dma_map_single(ctx->dev, key, *keylen, DMA_BIDIRECTIONAL); + if (dma_mapping_error(ctx->dev, key_dma)) { + dev_err(ctx->dev, "unable to map key memory\n"); + goto err_key_dma; + } + + desc = flc->sh_desc; + + init_sh_desc(desc, 0); + + /* descriptor to perform unkeyed hash on key_in */ + append_operation(desc, ctx->adata.algtype | OP_ALG_ENCRYPT | + OP_ALG_AS_INITFINAL); + append_seq_fifo_load(desc, *keylen, FIFOLD_CLASS_CLASS2 | + FIFOLD_TYPE_LAST2 | FIFOLD_TYPE_MSG); + append_seq_store(desc, digestsize, LDST_CLASS_2_CCB | + LDST_SRCDST_BYTE_CONTEXT); + + flc->flc[1] = cpu_to_caam32(desc_len(desc)); /* SDL */ + flc_dma = dma_map_single(ctx->dev, flc, sizeof(flc->flc) + + desc_bytes(desc), DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, flc_dma)) { + dev_err(ctx->dev, "unable to map shared descriptor\n"); + goto err_flc_dma; + } + + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_format(in_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(in_fle, key_dma); + dpaa2_fl_set_len(in_fle, *keylen); + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, key_dma); + dpaa2_fl_set_len(out_fle, digestsize); + + print_hex_dump_debug("key_in@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, *keylen, 1); + print_hex_dump_debug("shdesc@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), + 1); + + result.err = 0; + init_completion(&result.completion); + result.dev = ctx->dev; + + req_ctx->flc = flc; + req_ctx->flc_dma = flc_dma; + req_ctx->cbk = split_key_sh_done; + req_ctx->ctx = &result; + + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret == -EINPROGRESS) { + /* in progress */ + wait_for_completion(&result.completion); + ret = result.err; + print_hex_dump_debug("digested key@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, + digestsize, 1); + } + + dma_unmap_single(ctx->dev, flc_dma, sizeof(flc->flc) + desc_bytes(desc), + DMA_TO_DEVICE); +err_flc_dma: + dma_unmap_single(ctx->dev, key_dma, *keylen, DMA_BIDIRECTIONAL); +err_key_dma: + kfree(flc); +err_flc: + kfree(req_ctx); + + *keylen = digestsize; + + return ret; +} + +static int ahash_setkey(struct crypto_ahash *ahash, const u8 *key, + unsigned int keylen) +{ + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + unsigned int blocksize = crypto_tfm_alg_blocksize(&ahash->base); + unsigned int digestsize = crypto_ahash_digestsize(ahash); + int ret; + u8 *hashed_key = NULL; + + dev_dbg(ctx->dev, "keylen %d blocksize %d\n", keylen, blocksize); + + if (keylen > blocksize) { + unsigned int aligned_len = + ALIGN(keylen, dma_get_cache_alignment()); + + if (aligned_len < keylen) + return -EOVERFLOW; + + hashed_key = kmemdup(key, aligned_len, GFP_KERNEL); + if (!hashed_key) + return -ENOMEM; + ret = hash_digest_key(ctx, &keylen, hashed_key, digestsize); + if (ret) + goto bad_free_key; + key = hashed_key; + } + + ctx->adata.keylen = keylen; + ctx->adata.keylen_pad = split_key_len(ctx->adata.algtype & + OP_ALG_ALGSEL_MASK); + if (ctx->adata.keylen_pad > CAAM_MAX_HASH_KEY_SIZE) + goto bad_free_key; + + ctx->adata.key_virt = key; + ctx->adata.key_inline = true; + + /* + * In case |user key| > |derived key|, using DKP<imm,imm> would result + * in invalid opcodes (last bytes of user key) in the resulting + * descriptor. Use DKP<ptr,imm> instead => both virtual and dma key + * addresses are needed. + */ + if (keylen > ctx->adata.keylen_pad) { + memcpy(ctx->key, key, keylen); + dma_sync_single_for_device(ctx->dev, ctx->adata.key_dma, + ctx->adata.keylen_pad, + DMA_TO_DEVICE); + } + + ret = ahash_set_sh_desc(ahash); + kfree(hashed_key); + return ret; +bad_free_key: + kfree(hashed_key); + return -EINVAL; +} + +static inline void ahash_unmap(struct device *dev, struct ahash_edesc *edesc, + struct ahash_request *req) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + + if (edesc->src_nents) + dma_unmap_sg(dev, req->src, edesc->src_nents, DMA_TO_DEVICE); + + if (edesc->qm_sg_bytes) + dma_unmap_single(dev, edesc->qm_sg_dma, edesc->qm_sg_bytes, + DMA_TO_DEVICE); + + if (state->buf_dma) { + dma_unmap_single(dev, state->buf_dma, state->buflen, + DMA_TO_DEVICE); + state->buf_dma = 0; + } +} + +static inline void ahash_unmap_ctx(struct device *dev, + struct ahash_edesc *edesc, + struct ahash_request *req, u32 flag) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + + if (state->ctx_dma) { + dma_unmap_single(dev, state->ctx_dma, state->ctx_dma_len, flag); + state->ctx_dma = 0; + } + ahash_unmap(dev, edesc, req); +} + +static void ahash_done(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct ahash_request *req = ahash_request_cast(areq); + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct ahash_edesc *edesc = state->caam_req.edesc; + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + int digestsize = crypto_ahash_digestsize(ahash); + int ecode = 0; + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE); + memcpy(req->result, state->caam_ctx, digestsize); + qi_cache_free(edesc); + + print_hex_dump_debug("ctx@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx, + ctx->ctx_len, 1); + + ahash_request_complete(req, ecode); +} + +static void ahash_done_bi(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct ahash_request *req = ahash_request_cast(areq); + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct ahash_edesc *edesc = state->caam_req.edesc; + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + int ecode = 0; + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL); + qi_cache_free(edesc); + + scatterwalk_map_and_copy(state->buf, req->src, + req->nbytes - state->next_buflen, + state->next_buflen, 0); + state->buflen = state->next_buflen; + + print_hex_dump_debug("buf@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, state->buf, + state->buflen, 1); + + print_hex_dump_debug("ctx@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx, + ctx->ctx_len, 1); + if (req->result) + print_hex_dump_debug("result@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->result, + crypto_ahash_digestsize(ahash), 1); + + ahash_request_complete(req, ecode); +} + +static void ahash_done_ctx_src(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct ahash_request *req = ahash_request_cast(areq); + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct ahash_edesc *edesc = state->caam_req.edesc; + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + int digestsize = crypto_ahash_digestsize(ahash); + int ecode = 0; + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL); + memcpy(req->result, state->caam_ctx, digestsize); + qi_cache_free(edesc); + + print_hex_dump_debug("ctx@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx, + ctx->ctx_len, 1); + + ahash_request_complete(req, ecode); +} + +static void ahash_done_ctx_dst(void *cbk_ctx, u32 status) +{ + struct crypto_async_request *areq = cbk_ctx; + struct ahash_request *req = ahash_request_cast(areq); + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct ahash_edesc *edesc = state->caam_req.edesc; + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + int ecode = 0; + + dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status); + + if (unlikely(status)) + ecode = caam_qi2_strstatus(ctx->dev, status); + + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE); + qi_cache_free(edesc); + + scatterwalk_map_and_copy(state->buf, req->src, + req->nbytes - state->next_buflen, + state->next_buflen, 0); + state->buflen = state->next_buflen; + + print_hex_dump_debug("buf@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, state->buf, + state->buflen, 1); + + print_hex_dump_debug("ctx@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx, + ctx->ctx_len, 1); + if (req->result) + print_hex_dump_debug("result@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->result, + crypto_ahash_digestsize(ahash), 1); + + ahash_request_complete(req, ecode); +} + +static int ahash_update_ctx(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + u8 *buf = state->buf; + int *buflen = &state->buflen; + int *next_buflen = &state->next_buflen; + int in_len = *buflen + req->nbytes, to_hash; + int src_nents, mapped_nents, qm_sg_bytes, qm_sg_src_index; + struct ahash_edesc *edesc; + int ret = 0; + + *next_buflen = in_len & (crypto_tfm_alg_blocksize(&ahash->base) - 1); + to_hash = in_len - *next_buflen; + + if (to_hash) { + struct dpaa2_sg_entry *sg_table; + int src_len = req->nbytes - *next_buflen; + + src_nents = sg_nents_for_len(req->src, src_len); + if (src_nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return src_nents; + } + + if (src_nents) { + mapped_nents = dma_map_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + if (!mapped_nents) { + dev_err(ctx->dev, "unable to DMA map source\n"); + return -ENOMEM; + } + } else { + mapped_nents = 0; + } + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) { + dma_unmap_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + return -ENOMEM; + } + + edesc->src_nents = src_nents; + qm_sg_src_index = 1 + (*buflen ? 1 : 0); + qm_sg_bytes = pad_sg_nents(qm_sg_src_index + mapped_nents) * + sizeof(*sg_table); + sg_table = &edesc->sgt[0]; + + ret = ctx_map_to_qm_sg(ctx->dev, state, ctx->ctx_len, sg_table, + DMA_BIDIRECTIONAL); + if (ret) + goto unmap_ctx; + + ret = buf_map_to_qm_sg(ctx->dev, sg_table + 1, state); + if (ret) + goto unmap_ctx; + + if (mapped_nents) { + sg_to_qm_sg_last(req->src, src_len, + sg_table + qm_sg_src_index, 0); + } else { + dpaa2_sg_set_final(sg_table + qm_sg_src_index - 1, + true); + } + + edesc->qm_sg_dma = dma_map_single(ctx->dev, sg_table, + qm_sg_bytes, DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, edesc->qm_sg_dma)) { + dev_err(ctx->dev, "unable to map S/G table\n"); + ret = -ENOMEM; + goto unmap_ctx; + } + edesc->qm_sg_bytes = qm_sg_bytes; + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + dpaa2_fl_set_len(in_fle, ctx->ctx_len + to_hash); + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, ctx->ctx_len); + + req_ctx->flc = &ctx->flc[UPDATE]; + req_ctx->flc_dma = ctx->flc_dma[UPDATE]; + req_ctx->cbk = ahash_done_bi; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && + req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + goto unmap_ctx; + } else if (*next_buflen) { + scatterwalk_map_and_copy(buf + *buflen, req->src, 0, + req->nbytes, 0); + *buflen = *next_buflen; + + print_hex_dump_debug("buf@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, buf, + *buflen, 1); + } + + return ret; +unmap_ctx: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL); + qi_cache_free(edesc); + return ret; +} + +static int ahash_final_ctx(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int buflen = state->buflen; + int qm_sg_bytes; + int digestsize = crypto_ahash_digestsize(ahash); + struct ahash_edesc *edesc; + struct dpaa2_sg_entry *sg_table; + int ret; + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) + return -ENOMEM; + + qm_sg_bytes = pad_sg_nents(1 + (buflen ? 1 : 0)) * sizeof(*sg_table); + sg_table = &edesc->sgt[0]; + + ret = ctx_map_to_qm_sg(ctx->dev, state, ctx->ctx_len, sg_table, + DMA_BIDIRECTIONAL); + if (ret) + goto unmap_ctx; + + ret = buf_map_to_qm_sg(ctx->dev, sg_table + 1, state); + if (ret) + goto unmap_ctx; + + dpaa2_sg_set_final(sg_table + (buflen ? 1 : 0), true); + + edesc->qm_sg_dma = dma_map_single(ctx->dev, sg_table, qm_sg_bytes, + DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, edesc->qm_sg_dma)) { + dev_err(ctx->dev, "unable to map S/G table\n"); + ret = -ENOMEM; + goto unmap_ctx; + } + edesc->qm_sg_bytes = qm_sg_bytes; + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + dpaa2_fl_set_len(in_fle, ctx->ctx_len + buflen); + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, digestsize); + + req_ctx->flc = &ctx->flc[FINALIZE]; + req_ctx->flc_dma = ctx->flc_dma[FINALIZE]; + req_ctx->cbk = ahash_done_ctx_src; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret == -EINPROGRESS || + (ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + return ret; + +unmap_ctx: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL); + qi_cache_free(edesc); + return ret; +} + +static int ahash_finup_ctx(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int buflen = state->buflen; + int qm_sg_bytes, qm_sg_src_index; + int src_nents, mapped_nents; + int digestsize = crypto_ahash_digestsize(ahash); + struct ahash_edesc *edesc; + struct dpaa2_sg_entry *sg_table; + int ret; + + src_nents = sg_nents_for_len(req->src, req->nbytes); + if (src_nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return src_nents; + } + + if (src_nents) { + mapped_nents = dma_map_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + if (!mapped_nents) { + dev_err(ctx->dev, "unable to DMA map source\n"); + return -ENOMEM; + } + } else { + mapped_nents = 0; + } + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) { + dma_unmap_sg(ctx->dev, req->src, src_nents, DMA_TO_DEVICE); + return -ENOMEM; + } + + edesc->src_nents = src_nents; + qm_sg_src_index = 1 + (buflen ? 1 : 0); + qm_sg_bytes = pad_sg_nents(qm_sg_src_index + mapped_nents) * + sizeof(*sg_table); + sg_table = &edesc->sgt[0]; + + ret = ctx_map_to_qm_sg(ctx->dev, state, ctx->ctx_len, sg_table, + DMA_BIDIRECTIONAL); + if (ret) + goto unmap_ctx; + + ret = buf_map_to_qm_sg(ctx->dev, sg_table + 1, state); + if (ret) + goto unmap_ctx; + + sg_to_qm_sg_last(req->src, req->nbytes, sg_table + qm_sg_src_index, 0); + + edesc->qm_sg_dma = dma_map_single(ctx->dev, sg_table, qm_sg_bytes, + DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, edesc->qm_sg_dma)) { + dev_err(ctx->dev, "unable to map S/G table\n"); + ret = -ENOMEM; + goto unmap_ctx; + } + edesc->qm_sg_bytes = qm_sg_bytes; + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + dpaa2_fl_set_len(in_fle, ctx->ctx_len + buflen + req->nbytes); + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, digestsize); + + req_ctx->flc = &ctx->flc[FINALIZE]; + req_ctx->flc_dma = ctx->flc_dma[FINALIZE]; + req_ctx->cbk = ahash_done_ctx_src; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret == -EINPROGRESS || + (ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + return ret; + +unmap_ctx: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL); + qi_cache_free(edesc); + return ret; +} + +static int ahash_digest(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int digestsize = crypto_ahash_digestsize(ahash); + int src_nents, mapped_nents; + struct ahash_edesc *edesc; + int ret = -ENOMEM; + + state->buf_dma = 0; + + src_nents = sg_nents_for_len(req->src, req->nbytes); + if (src_nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return src_nents; + } + + if (src_nents) { + mapped_nents = dma_map_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + if (!mapped_nents) { + dev_err(ctx->dev, "unable to map source for DMA\n"); + return ret; + } + } else { + mapped_nents = 0; + } + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) { + dma_unmap_sg(ctx->dev, req->src, src_nents, DMA_TO_DEVICE); + return ret; + } + + edesc->src_nents = src_nents; + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + + if (mapped_nents > 1) { + int qm_sg_bytes; + struct dpaa2_sg_entry *sg_table = &edesc->sgt[0]; + + qm_sg_bytes = pad_sg_nents(mapped_nents) * sizeof(*sg_table); + sg_to_qm_sg_last(req->src, req->nbytes, sg_table, 0); + edesc->qm_sg_dma = dma_map_single(ctx->dev, sg_table, + qm_sg_bytes, DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, edesc->qm_sg_dma)) { + dev_err(ctx->dev, "unable to map S/G table\n"); + goto unmap; + } + edesc->qm_sg_bytes = qm_sg_bytes; + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + } else { + dpaa2_fl_set_format(in_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(in_fle, sg_dma_address(req->src)); + } + + state->ctx_dma_len = digestsize; + state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, digestsize, + DMA_FROM_DEVICE); + if (dma_mapping_error(ctx->dev, state->ctx_dma)) { + dev_err(ctx->dev, "unable to map ctx\n"); + state->ctx_dma = 0; + goto unmap; + } + + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_len(in_fle, req->nbytes); + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, digestsize); + + req_ctx->flc = &ctx->flc[DIGEST]; + req_ctx->flc_dma = ctx->flc_dma[DIGEST]; + req_ctx->cbk = ahash_done; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret == -EINPROGRESS || + (ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + return ret; + +unmap: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE); + qi_cache_free(edesc); + return ret; +} + +static int ahash_final_no_ctx(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + u8 *buf = state->buf; + int buflen = state->buflen; + int digestsize = crypto_ahash_digestsize(ahash); + struct ahash_edesc *edesc; + int ret = -ENOMEM; + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) + return ret; + + if (buflen) { + state->buf_dma = dma_map_single(ctx->dev, buf, buflen, + DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, state->buf_dma)) { + dev_err(ctx->dev, "unable to map src\n"); + goto unmap; + } + } + + state->ctx_dma_len = digestsize; + state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, digestsize, + DMA_FROM_DEVICE); + if (dma_mapping_error(ctx->dev, state->ctx_dma)) { + dev_err(ctx->dev, "unable to map ctx\n"); + state->ctx_dma = 0; + goto unmap; + } + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + /* + * crypto engine requires the input entry to be present when + * "frame list" FD is used. + * Since engine does not support FMT=2'b11 (unused entry type), leaving + * in_fle zeroized (except for "Final" flag) is the best option. + */ + if (buflen) { + dpaa2_fl_set_format(in_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(in_fle, state->buf_dma); + dpaa2_fl_set_len(in_fle, buflen); + } + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, digestsize); + + req_ctx->flc = &ctx->flc[DIGEST]; + req_ctx->flc_dma = ctx->flc_dma[DIGEST]; + req_ctx->cbk = ahash_done; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret == -EINPROGRESS || + (ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + return ret; + +unmap: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE); + qi_cache_free(edesc); + return ret; +} + +static int ahash_update_no_ctx(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + u8 *buf = state->buf; + int *buflen = &state->buflen; + int *next_buflen = &state->next_buflen; + int in_len = *buflen + req->nbytes, to_hash; + int qm_sg_bytes, src_nents, mapped_nents; + struct ahash_edesc *edesc; + int ret = 0; + + *next_buflen = in_len & (crypto_tfm_alg_blocksize(&ahash->base) - 1); + to_hash = in_len - *next_buflen; + + if (to_hash) { + struct dpaa2_sg_entry *sg_table; + int src_len = req->nbytes - *next_buflen; + + src_nents = sg_nents_for_len(req->src, src_len); + if (src_nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return src_nents; + } + + if (src_nents) { + mapped_nents = dma_map_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + if (!mapped_nents) { + dev_err(ctx->dev, "unable to DMA map source\n"); + return -ENOMEM; + } + } else { + mapped_nents = 0; + } + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) { + dma_unmap_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + return -ENOMEM; + } + + edesc->src_nents = src_nents; + qm_sg_bytes = pad_sg_nents(1 + mapped_nents) * + sizeof(*sg_table); + sg_table = &edesc->sgt[0]; + + ret = buf_map_to_qm_sg(ctx->dev, sg_table, state); + if (ret) + goto unmap_ctx; + + sg_to_qm_sg_last(req->src, src_len, sg_table + 1, 0); + + edesc->qm_sg_dma = dma_map_single(ctx->dev, sg_table, + qm_sg_bytes, DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, edesc->qm_sg_dma)) { + dev_err(ctx->dev, "unable to map S/G table\n"); + ret = -ENOMEM; + goto unmap_ctx; + } + edesc->qm_sg_bytes = qm_sg_bytes; + + state->ctx_dma_len = ctx->ctx_len; + state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, + ctx->ctx_len, DMA_FROM_DEVICE); + if (dma_mapping_error(ctx->dev, state->ctx_dma)) { + dev_err(ctx->dev, "unable to map ctx\n"); + state->ctx_dma = 0; + ret = -ENOMEM; + goto unmap_ctx; + } + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + dpaa2_fl_set_len(in_fle, to_hash); + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, ctx->ctx_len); + + req_ctx->flc = &ctx->flc[UPDATE_FIRST]; + req_ctx->flc_dma = ctx->flc_dma[UPDATE_FIRST]; + req_ctx->cbk = ahash_done_ctx_dst; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && + req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + goto unmap_ctx; + + state->update = ahash_update_ctx; + state->finup = ahash_finup_ctx; + state->final = ahash_final_ctx; + } else if (*next_buflen) { + scatterwalk_map_and_copy(buf + *buflen, req->src, 0, + req->nbytes, 0); + *buflen = *next_buflen; + + print_hex_dump_debug("buf@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, buf, + *buflen, 1); + } + + return ret; +unmap_ctx: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_TO_DEVICE); + qi_cache_free(edesc); + return ret; +} + +static int ahash_finup_no_ctx(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int buflen = state->buflen; + int qm_sg_bytes, src_nents, mapped_nents; + int digestsize = crypto_ahash_digestsize(ahash); + struct ahash_edesc *edesc; + struct dpaa2_sg_entry *sg_table; + int ret = -ENOMEM; + + src_nents = sg_nents_for_len(req->src, req->nbytes); + if (src_nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return src_nents; + } + + if (src_nents) { + mapped_nents = dma_map_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + if (!mapped_nents) { + dev_err(ctx->dev, "unable to DMA map source\n"); + return ret; + } + } else { + mapped_nents = 0; + } + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) { + dma_unmap_sg(ctx->dev, req->src, src_nents, DMA_TO_DEVICE); + return ret; + } + + edesc->src_nents = src_nents; + qm_sg_bytes = pad_sg_nents(2 + mapped_nents) * sizeof(*sg_table); + sg_table = &edesc->sgt[0]; + + ret = buf_map_to_qm_sg(ctx->dev, sg_table, state); + if (ret) + goto unmap; + + sg_to_qm_sg_last(req->src, req->nbytes, sg_table + 1, 0); + + edesc->qm_sg_dma = dma_map_single(ctx->dev, sg_table, qm_sg_bytes, + DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, edesc->qm_sg_dma)) { + dev_err(ctx->dev, "unable to map S/G table\n"); + ret = -ENOMEM; + goto unmap; + } + edesc->qm_sg_bytes = qm_sg_bytes; + + state->ctx_dma_len = digestsize; + state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, digestsize, + DMA_FROM_DEVICE); + if (dma_mapping_error(ctx->dev, state->ctx_dma)) { + dev_err(ctx->dev, "unable to map ctx\n"); + state->ctx_dma = 0; + ret = -ENOMEM; + goto unmap; + } + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + dpaa2_fl_set_len(in_fle, buflen + req->nbytes); + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, digestsize); + + req_ctx->flc = &ctx->flc[DIGEST]; + req_ctx->flc_dma = ctx->flc_dma[DIGEST]; + req_ctx->cbk = ahash_done; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + goto unmap; + + return ret; +unmap: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE); + qi_cache_free(edesc); + return ret; +} + +static int ahash_update_first(struct ahash_request *req) +{ + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct caam_hash_ctx *ctx = crypto_ahash_ctx_dma(ahash); + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_request *req_ctx = &state->caam_req; + struct dpaa2_fl_entry *in_fle = &req_ctx->fd_flt[1]; + struct dpaa2_fl_entry *out_fle = &req_ctx->fd_flt[0]; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + u8 *buf = state->buf; + int *buflen = &state->buflen; + int *next_buflen = &state->next_buflen; + int to_hash; + int src_nents, mapped_nents; + struct ahash_edesc *edesc; + int ret = 0; + + *next_buflen = req->nbytes & (crypto_tfm_alg_blocksize(&ahash->base) - + 1); + to_hash = req->nbytes - *next_buflen; + + if (to_hash) { + struct dpaa2_sg_entry *sg_table; + int src_len = req->nbytes - *next_buflen; + + src_nents = sg_nents_for_len(req->src, src_len); + if (src_nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return src_nents; + } + + if (src_nents) { + mapped_nents = dma_map_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + if (!mapped_nents) { + dev_err(ctx->dev, "unable to map source for DMA\n"); + return -ENOMEM; + } + } else { + mapped_nents = 0; + } + + /* allocate space for base edesc and link tables */ + edesc = qi_cache_zalloc(flags); + if (!edesc) { + dma_unmap_sg(ctx->dev, req->src, src_nents, + DMA_TO_DEVICE); + return -ENOMEM; + } + + edesc->src_nents = src_nents; + sg_table = &edesc->sgt[0]; + + memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt)); + dpaa2_fl_set_final(in_fle, true); + dpaa2_fl_set_len(in_fle, to_hash); + + if (mapped_nents > 1) { + int qm_sg_bytes; + + sg_to_qm_sg_last(req->src, src_len, sg_table, 0); + qm_sg_bytes = pad_sg_nents(mapped_nents) * + sizeof(*sg_table); + edesc->qm_sg_dma = dma_map_single(ctx->dev, sg_table, + qm_sg_bytes, + DMA_TO_DEVICE); + if (dma_mapping_error(ctx->dev, edesc->qm_sg_dma)) { + dev_err(ctx->dev, "unable to map S/G table\n"); + ret = -ENOMEM; + goto unmap_ctx; + } + edesc->qm_sg_bytes = qm_sg_bytes; + dpaa2_fl_set_format(in_fle, dpaa2_fl_sg); + dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma); + } else { + dpaa2_fl_set_format(in_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(in_fle, sg_dma_address(req->src)); + } + + state->ctx_dma_len = ctx->ctx_len; + state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, + ctx->ctx_len, DMA_FROM_DEVICE); + if (dma_mapping_error(ctx->dev, state->ctx_dma)) { + dev_err(ctx->dev, "unable to map ctx\n"); + state->ctx_dma = 0; + ret = -ENOMEM; + goto unmap_ctx; + } + + dpaa2_fl_set_format(out_fle, dpaa2_fl_single); + dpaa2_fl_set_addr(out_fle, state->ctx_dma); + dpaa2_fl_set_len(out_fle, ctx->ctx_len); + + req_ctx->flc = &ctx->flc[UPDATE_FIRST]; + req_ctx->flc_dma = ctx->flc_dma[UPDATE_FIRST]; + req_ctx->cbk = ahash_done_ctx_dst; + req_ctx->ctx = &req->base; + req_ctx->edesc = edesc; + + ret = dpaa2_caam_enqueue(ctx->dev, req_ctx); + if (ret != -EINPROGRESS && + !(ret == -EBUSY && req->base.flags & + CRYPTO_TFM_REQ_MAY_BACKLOG)) + goto unmap_ctx; + + state->update = ahash_update_ctx; + state->finup = ahash_finup_ctx; + state->final = ahash_final_ctx; + } else if (*next_buflen) { + state->update = ahash_update_no_ctx; + state->finup = ahash_finup_no_ctx; + state->final = ahash_final_no_ctx; + scatterwalk_map_and_copy(buf, req->src, 0, + req->nbytes, 0); + *buflen = *next_buflen; + + print_hex_dump_debug("buf@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, buf, + *buflen, 1); + } + + return ret; +unmap_ctx: + ahash_unmap_ctx(ctx->dev, edesc, req, DMA_TO_DEVICE); + qi_cache_free(edesc); + return ret; +} + +static int ahash_finup_first(struct ahash_request *req) +{ + return ahash_digest(req); +} + +static int ahash_init(struct ahash_request *req) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + + state->update = ahash_update_first; + state->finup = ahash_finup_first; + state->final = ahash_final_no_ctx; + + state->ctx_dma = 0; + state->ctx_dma_len = 0; + state->buf_dma = 0; + state->buflen = 0; + state->next_buflen = 0; + + return 0; +} + +static int ahash_update(struct ahash_request *req) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + + return state->update(req); +} + +static int ahash_finup(struct ahash_request *req) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + + return state->finup(req); +} + +static int ahash_final(struct ahash_request *req) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + + return state->final(req); +} + +static int ahash_export(struct ahash_request *req, void *out) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + struct caam_export_state *export = out; + u8 *buf = state->buf; + int len = state->buflen; + + memcpy(export->buf, buf, len); + memcpy(export->caam_ctx, state->caam_ctx, sizeof(export->caam_ctx)); + export->buflen = len; + export->update = state->update; + export->final = state->final; + export->finup = state->finup; + + return 0; +} + +static int ahash_import(struct ahash_request *req, const void *in) +{ + struct caam_hash_state *state = ahash_request_ctx_dma(req); + const struct caam_export_state *export = in; + + memset(state, 0, sizeof(*state)); + memcpy(state->buf, export->buf, export->buflen); + memcpy(state->caam_ctx, export->caam_ctx, sizeof(state->caam_ctx)); + state->buflen = export->buflen; + state->update = export->update; + state->final = export->final; + state->finup = export->finup; + + return 0; +} + +struct caam_hash_template { + char name[CRYPTO_MAX_ALG_NAME]; + char driver_name[CRYPTO_MAX_ALG_NAME]; + char hmac_name[CRYPTO_MAX_ALG_NAME]; + char hmac_driver_name[CRYPTO_MAX_ALG_NAME]; + unsigned int blocksize; + struct ahash_alg template_ahash; + u32 alg_type; +}; + +/* ahash descriptors */ +static struct caam_hash_template driver_hash[] = { + { + .name = "sha1", + .driver_name = "sha1-caam-qi2", + .hmac_name = "hmac(sha1)", + .hmac_driver_name = "hmac-sha1-caam-qi2", + .blocksize = SHA1_BLOCK_SIZE, + .template_ahash = { + .init = ahash_init, + .update = ahash_update, + .final = ahash_final, + .finup = ahash_finup, + .digest = ahash_digest, + .export = ahash_export, + .import = ahash_import, + .setkey = ahash_setkey, + .halg = { + .digestsize = SHA1_DIGEST_SIZE, + .statesize = sizeof(struct caam_export_state), + }, + }, + .alg_type = OP_ALG_ALGSEL_SHA1, + }, { + .name = "sha224", + .driver_name = "sha224-caam-qi2", + .hmac_name = "hmac(sha224)", + .hmac_driver_name = "hmac-sha224-caam-qi2", + .blocksize = SHA224_BLOCK_SIZE, + .template_ahash = { + .init = ahash_init, + .update = ahash_update, + .final = ahash_final, + .finup = ahash_finup, + .digest = ahash_digest, + .export = ahash_export, + .import = ahash_import, + .setkey = ahash_setkey, + .halg = { + .digestsize = SHA224_DIGEST_SIZE, + .statesize = sizeof(struct caam_export_state), + }, + }, + .alg_type = OP_ALG_ALGSEL_SHA224, + }, { + .name = "sha256", + .driver_name = "sha256-caam-qi2", + .hmac_name = "hmac(sha256)", + .hmac_driver_name = "hmac-sha256-caam-qi2", + .blocksize = SHA256_BLOCK_SIZE, + .template_ahash = { + .init = ahash_init, + .update = ahash_update, + .final = ahash_final, + .finup = ahash_finup, + .digest = ahash_digest, + .export = ahash_export, + .import = ahash_import, + .setkey = ahash_setkey, + .halg = { + .digestsize = SHA256_DIGEST_SIZE, + .statesize = sizeof(struct caam_export_state), + }, + }, + .alg_type = OP_ALG_ALGSEL_SHA256, + }, { + .name = "sha384", + .driver_name = "sha384-caam-qi2", + .hmac_name = "hmac(sha384)", + .hmac_driver_name = "hmac-sha384-caam-qi2", + .blocksize = SHA384_BLOCK_SIZE, + .template_ahash = { + .init = ahash_init, + .update = ahash_update, + .final = ahash_final, + .finup = ahash_finup, + .digest = ahash_digest, + .export = ahash_export, + .import = ahash_import, + .setkey = ahash_setkey, + .halg = { + .digestsize = SHA384_DIGEST_SIZE, + .statesize = sizeof(struct caam_export_state), + }, + }, + .alg_type = OP_ALG_ALGSEL_SHA384, + }, { + .name = "sha512", + .driver_name = "sha512-caam-qi2", + .hmac_name = "hmac(sha512)", + .hmac_driver_name = "hmac-sha512-caam-qi2", + .blocksize = SHA512_BLOCK_SIZE, + .template_ahash = { + .init = ahash_init, + .update = ahash_update, + .final = ahash_final, + .finup = ahash_finup, + .digest = ahash_digest, + .export = ahash_export, + .import = ahash_import, + .setkey = ahash_setkey, + .halg = { + .digestsize = SHA512_DIGEST_SIZE, + .statesize = sizeof(struct caam_export_state), + }, + }, + .alg_type = OP_ALG_ALGSEL_SHA512, + }, { + .name = "md5", + .driver_name = "md5-caam-qi2", + .hmac_name = "hmac(md5)", + .hmac_driver_name = "hmac-md5-caam-qi2", + .blocksize = MD5_BLOCK_WORDS * 4, + .template_ahash = { + .init = ahash_init, + .update = ahash_update, + .final = ahash_final, + .finup = ahash_finup, + .digest = ahash_digest, + .export = ahash_export, + .import = ahash_import, + .setkey = ahash_setkey, + .halg = { + .digestsize = MD5_DIGEST_SIZE, + .statesize = sizeof(struct caam_export_state), + }, + }, + .alg_type = OP_ALG_ALGSEL_MD5, + } +}; + +struct caam_hash_alg { + struct list_head entry; + struct device *dev; + int alg_type; + struct ahash_alg ahash_alg; +}; + +static int caam_hash_cra_init(struct crypto_tfm *tfm) +{ + struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); + struct crypto_alg *base = tfm->__crt_alg; + struct hash_alg_common *halg = + container_of(base, struct hash_alg_common, base); + struct ahash_alg *alg = + container_of(halg, struct ahash_alg, halg); + struct caam_hash_alg *caam_hash = + container_of(alg, struct caam_hash_alg, ahash_alg); + struct caam_hash_ctx *ctx = crypto_tfm_ctx_dma(tfm); + /* Sizes for MDHA running digests: MD5, SHA1, 224, 256, 384, 512 */ + static const u8 runninglen[] = { HASH_MSG_LEN + MD5_DIGEST_SIZE, + HASH_MSG_LEN + SHA1_DIGEST_SIZE, + HASH_MSG_LEN + 32, + HASH_MSG_LEN + SHA256_DIGEST_SIZE, + HASH_MSG_LEN + 64, + HASH_MSG_LEN + SHA512_DIGEST_SIZE }; + dma_addr_t dma_addr; + int i; + + ctx->dev = caam_hash->dev; + + if (alg->setkey) { + ctx->adata.key_dma = dma_map_single_attrs(ctx->dev, ctx->key, + ARRAY_SIZE(ctx->key), + DMA_TO_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + if (dma_mapping_error(ctx->dev, ctx->adata.key_dma)) { + dev_err(ctx->dev, "unable to map key\n"); + return -ENOMEM; + } + } + + dma_addr = dma_map_single_attrs(ctx->dev, ctx->flc, sizeof(ctx->flc), + DMA_BIDIRECTIONAL, + DMA_ATTR_SKIP_CPU_SYNC); + if (dma_mapping_error(ctx->dev, dma_addr)) { + dev_err(ctx->dev, "unable to map shared descriptors\n"); + if (ctx->adata.key_dma) + dma_unmap_single_attrs(ctx->dev, ctx->adata.key_dma, + ARRAY_SIZE(ctx->key), + DMA_TO_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + return -ENOMEM; + } + + for (i = 0; i < HASH_NUM_OP; i++) + ctx->flc_dma[i] = dma_addr + i * sizeof(ctx->flc[i]); + + /* copy descriptor header template value */ + ctx->adata.algtype = OP_TYPE_CLASS2_ALG | caam_hash->alg_type; + + ctx->ctx_len = runninglen[(ctx->adata.algtype & + OP_ALG_ALGSEL_SUBMASK) >> + OP_ALG_ALGSEL_SHIFT]; + + crypto_ahash_set_reqsize_dma(ahash, sizeof(struct caam_hash_state)); + + /* + * For keyed hash algorithms shared descriptors + * will be created later in setkey() callback + */ + return alg->setkey ? 0 : ahash_set_sh_desc(ahash); +} + +static void caam_hash_cra_exit(struct crypto_tfm *tfm) +{ + struct caam_hash_ctx *ctx = crypto_tfm_ctx_dma(tfm); + + dma_unmap_single_attrs(ctx->dev, ctx->flc_dma[0], sizeof(ctx->flc), + DMA_BIDIRECTIONAL, DMA_ATTR_SKIP_CPU_SYNC); + if (ctx->adata.key_dma) + dma_unmap_single_attrs(ctx->dev, ctx->adata.key_dma, + ARRAY_SIZE(ctx->key), DMA_TO_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); +} + +static struct caam_hash_alg *caam_hash_alloc(struct device *dev, + struct caam_hash_template *template, bool keyed) +{ + struct caam_hash_alg *t_alg; + struct ahash_alg *halg; + struct crypto_alg *alg; + + t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL); + if (!t_alg) + return ERR_PTR(-ENOMEM); + + t_alg->ahash_alg = template->template_ahash; + halg = &t_alg->ahash_alg; + alg = &halg->halg.base; + + if (keyed) { + snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", + template->hmac_name); + snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", + template->hmac_driver_name); + } else { + snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", + template->name); + snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", + template->driver_name); + t_alg->ahash_alg.setkey = NULL; + } + alg->cra_module = THIS_MODULE; + alg->cra_init = caam_hash_cra_init; + alg->cra_exit = caam_hash_cra_exit; + alg->cra_ctxsize = sizeof(struct caam_hash_ctx) + crypto_dma_padding(); + alg->cra_priority = CAAM_CRA_PRIORITY; + alg->cra_blocksize = template->blocksize; + alg->cra_alignmask = 0; + alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY; + + t_alg->alg_type = template->alg_type; + t_alg->dev = dev; + + return t_alg; +} + +static void dpaa2_caam_fqdan_cb(struct dpaa2_io_notification_ctx *nctx) +{ + struct dpaa2_caam_priv_per_cpu *ppriv; + + ppriv = container_of(nctx, struct dpaa2_caam_priv_per_cpu, nctx); + napi_schedule_irqoff(&ppriv->napi); +} + +static int __cold dpaa2_dpseci_dpio_setup(struct dpaa2_caam_priv *priv) +{ + struct device *dev = priv->dev; + struct dpaa2_io_notification_ctx *nctx; + struct dpaa2_caam_priv_per_cpu *ppriv; + int err, i = 0, cpu; + + for_each_online_cpu(cpu) { + ppriv = per_cpu_ptr(priv->ppriv, cpu); + ppriv->priv = priv; + nctx = &ppriv->nctx; + nctx->is_cdan = 0; + nctx->id = ppriv->rsp_fqid; + nctx->desired_cpu = cpu; + nctx->cb = dpaa2_caam_fqdan_cb; + + /* Register notification callbacks */ + ppriv->dpio = dpaa2_io_service_select(cpu); + err = dpaa2_io_service_register(ppriv->dpio, nctx, dev); + if (unlikely(err)) { + dev_dbg(dev, "No affine DPIO for cpu %d\n", cpu); + nctx->cb = NULL; + /* + * If no affine DPIO for this core, there's probably + * none available for next cores either. Signal we want + * to retry later, in case the DPIO devices weren't + * probed yet. + */ + err = -EPROBE_DEFER; + goto err; + } + + ppriv->store = dpaa2_io_store_create(DPAA2_CAAM_STORE_SIZE, + dev); + if (unlikely(!ppriv->store)) { + dev_err(dev, "dpaa2_io_store_create() failed\n"); + err = -ENOMEM; + goto err; + } + + if (++i == priv->num_pairs) + break; + } + + return 0; + +err: + for_each_online_cpu(cpu) { + ppriv = per_cpu_ptr(priv->ppriv, cpu); + if (!ppriv->nctx.cb) + break; + dpaa2_io_service_deregister(ppriv->dpio, &ppriv->nctx, dev); + } + + for_each_online_cpu(cpu) { + ppriv = per_cpu_ptr(priv->ppriv, cpu); + if (!ppriv->store) + break; + dpaa2_io_store_destroy(ppriv->store); + } + + return err; +} + +static void __cold dpaa2_dpseci_dpio_free(struct dpaa2_caam_priv *priv) +{ + struct dpaa2_caam_priv_per_cpu *ppriv; + int i = 0, cpu; + + for_each_online_cpu(cpu) { + ppriv = per_cpu_ptr(priv->ppriv, cpu); + dpaa2_io_service_deregister(ppriv->dpio, &ppriv->nctx, + priv->dev); + dpaa2_io_store_destroy(ppriv->store); + + if (++i == priv->num_pairs) + return; + } +} + +static int dpaa2_dpseci_bind(struct dpaa2_caam_priv *priv) +{ + struct dpseci_rx_queue_cfg rx_queue_cfg; + struct device *dev = priv->dev; + struct fsl_mc_device *ls_dev = to_fsl_mc_device(dev); + struct dpaa2_caam_priv_per_cpu *ppriv; + int err = 0, i = 0, cpu; + + /* Configure Rx queues */ + for_each_online_cpu(cpu) { + ppriv = per_cpu_ptr(priv->ppriv, cpu); + + rx_queue_cfg.options = DPSECI_QUEUE_OPT_DEST | + DPSECI_QUEUE_OPT_USER_CTX; + rx_queue_cfg.order_preservation_en = 0; + rx_queue_cfg.dest_cfg.dest_type = DPSECI_DEST_DPIO; + rx_queue_cfg.dest_cfg.dest_id = ppriv->nctx.dpio_id; + /* + * Rx priority (WQ) doesn't really matter, since we use + * pull mode, i.e. volatile dequeues from specific FQs + */ + rx_queue_cfg.dest_cfg.priority = 0; + rx_queue_cfg.user_ctx = ppriv->nctx.qman64; + + err = dpseci_set_rx_queue(priv->mc_io, 0, ls_dev->mc_handle, i, + &rx_queue_cfg); + if (err) { + dev_err(dev, "dpseci_set_rx_queue() failed with err %d\n", + err); + return err; + } + + if (++i == priv->num_pairs) + break; + } + + return err; +} + +static void dpaa2_dpseci_congestion_free(struct dpaa2_caam_priv *priv) +{ + struct device *dev = priv->dev; + + if (!priv->cscn_mem) + return; + + dma_unmap_single(dev, priv->cscn_dma, DPAA2_CSCN_SIZE, DMA_FROM_DEVICE); + kfree(priv->cscn_mem); +} + +static void dpaa2_dpseci_free(struct dpaa2_caam_priv *priv) +{ + struct device *dev = priv->dev; + struct fsl_mc_device *ls_dev = to_fsl_mc_device(dev); + int err; + + if (DPSECI_VER(priv->major_ver, priv->minor_ver) > DPSECI_VER(5, 3)) { + err = dpseci_reset(priv->mc_io, 0, ls_dev->mc_handle); + if (err) + dev_err(dev, "dpseci_reset() failed\n"); + } + + dpaa2_dpseci_congestion_free(priv); + dpseci_close(priv->mc_io, 0, ls_dev->mc_handle); +} + +static void dpaa2_caam_process_fd(struct dpaa2_caam_priv *priv, + const struct dpaa2_fd *fd) +{ + struct caam_request *req; + u32 fd_err; + + if (dpaa2_fd_get_format(fd) != dpaa2_fd_list) { + dev_err(priv->dev, "Only Frame List FD format is supported!\n"); + return; + } + + fd_err = dpaa2_fd_get_ctrl(fd) & FD_CTRL_ERR_MASK; + if (unlikely(fd_err)) + dev_err_ratelimited(priv->dev, "FD error: %08x\n", fd_err); + + /* + * FD[ADDR] is guaranteed to be valid, irrespective of errors reported + * in FD[ERR] or FD[FRC]. + */ + req = dpaa2_caam_iova_to_virt(priv, dpaa2_fd_get_addr(fd)); + dma_unmap_single(priv->dev, req->fd_flt_dma, sizeof(req->fd_flt), + DMA_BIDIRECTIONAL); + req->cbk(req->ctx, dpaa2_fd_get_frc(fd)); +} + +static int dpaa2_caam_pull_fq(struct dpaa2_caam_priv_per_cpu *ppriv) +{ + int err; + + /* Retry while portal is busy */ + do { + err = dpaa2_io_service_pull_fq(ppriv->dpio, ppriv->rsp_fqid, + ppriv->store); + } while (err == -EBUSY); + + if (unlikely(err)) + dev_err(ppriv->priv->dev, "dpaa2_io_service_pull err %d", err); + + return err; +} + +static int dpaa2_caam_store_consume(struct dpaa2_caam_priv_per_cpu *ppriv) +{ + struct dpaa2_dq *dq; + int cleaned = 0, is_last; + + do { + dq = dpaa2_io_store_next(ppriv->store, &is_last); + if (unlikely(!dq)) { + if (unlikely(!is_last)) { + dev_dbg(ppriv->priv->dev, + "FQ %d returned no valid frames\n", + ppriv->rsp_fqid); + /* + * MUST retry until we get some sort of + * valid response token (be it "empty dequeue" + * or a valid frame). + */ + continue; + } + break; + } + + /* Process FD */ + dpaa2_caam_process_fd(ppriv->priv, dpaa2_dq_fd(dq)); + cleaned++; + } while (!is_last); + + return cleaned; +} + +static int dpaa2_dpseci_poll(struct napi_struct *napi, int budget) +{ + struct dpaa2_caam_priv_per_cpu *ppriv; + struct dpaa2_caam_priv *priv; + int err, cleaned = 0, store_cleaned; + + ppriv = container_of(napi, struct dpaa2_caam_priv_per_cpu, napi); + priv = ppriv->priv; + + if (unlikely(dpaa2_caam_pull_fq(ppriv))) + return 0; + + do { + store_cleaned = dpaa2_caam_store_consume(ppriv); + cleaned += store_cleaned; + + if (store_cleaned == 0 || + cleaned > budget - DPAA2_CAAM_STORE_SIZE) + break; + + /* Try to dequeue some more */ + err = dpaa2_caam_pull_fq(ppriv); + if (unlikely(err)) + break; + } while (1); + + if (cleaned < budget) { + napi_complete_done(napi, cleaned); + err = dpaa2_io_service_rearm(ppriv->dpio, &ppriv->nctx); + if (unlikely(err)) + dev_err(priv->dev, "Notification rearm failed: %d\n", + err); + } + + return cleaned; +} + +static int dpaa2_dpseci_congestion_setup(struct dpaa2_caam_priv *priv, + u16 token) +{ + struct dpseci_congestion_notification_cfg cong_notif_cfg = { 0 }; + struct device *dev = priv->dev; + unsigned int alignmask; + int err; + + /* + * Congestion group feature supported starting with DPSECI API v5.1 + * and only when object has been created with this capability. + */ + if ((DPSECI_VER(priv->major_ver, priv->minor_ver) < DPSECI_VER(5, 1)) || + !(priv->dpseci_attr.options & DPSECI_OPT_HAS_CG)) + return 0; + + alignmask = DPAA2_CSCN_ALIGN - 1; + alignmask |= dma_get_cache_alignment() - 1; + priv->cscn_mem = kzalloc(ALIGN(DPAA2_CSCN_SIZE, alignmask + 1), + GFP_KERNEL); + if (!priv->cscn_mem) + return -ENOMEM; + + priv->cscn_dma = dma_map_single(dev, priv->cscn_mem, + DPAA2_CSCN_SIZE, DMA_FROM_DEVICE); + if (dma_mapping_error(dev, priv->cscn_dma)) { + dev_err(dev, "Error mapping CSCN memory area\n"); + err = -ENOMEM; + goto err_dma_map; + } + + cong_notif_cfg.units = DPSECI_CONGESTION_UNIT_BYTES; + cong_notif_cfg.threshold_entry = DPAA2_SEC_CONG_ENTRY_THRESH; + cong_notif_cfg.threshold_exit = DPAA2_SEC_CONG_EXIT_THRESH; + cong_notif_cfg.message_ctx = (uintptr_t)priv; + cong_notif_cfg.message_iova = priv->cscn_dma; + cong_notif_cfg.notification_mode = DPSECI_CGN_MODE_WRITE_MEM_ON_ENTER | + DPSECI_CGN_MODE_WRITE_MEM_ON_EXIT | + DPSECI_CGN_MODE_COHERENT_WRITE; + + err = dpseci_set_congestion_notification(priv->mc_io, 0, token, + &cong_notif_cfg); + if (err) { + dev_err(dev, "dpseci_set_congestion_notification failed\n"); + goto err_set_cong; + } + + return 0; + +err_set_cong: + dma_unmap_single(dev, priv->cscn_dma, DPAA2_CSCN_SIZE, DMA_FROM_DEVICE); +err_dma_map: + kfree(priv->cscn_mem); + + return err; +} + +static int __cold dpaa2_dpseci_setup(struct fsl_mc_device *ls_dev) +{ + struct device *dev = &ls_dev->dev; + struct dpaa2_caam_priv *priv; + struct dpaa2_caam_priv_per_cpu *ppriv; + int err, cpu; + u8 i; + + priv = dev_get_drvdata(dev); + + priv->dev = dev; + priv->dpsec_id = ls_dev->obj_desc.id; + + /* Get a handle for the DPSECI this interface is associate with */ + err = dpseci_open(priv->mc_io, 0, priv->dpsec_id, &ls_dev->mc_handle); + if (err) { + dev_err(dev, "dpseci_open() failed: %d\n", err); + goto err_open; + } + + err = dpseci_get_api_version(priv->mc_io, 0, &priv->major_ver, + &priv->minor_ver); + if (err) { + dev_err(dev, "dpseci_get_api_version() failed\n"); + goto err_get_vers; + } + + dev_info(dev, "dpseci v%d.%d\n", priv->major_ver, priv->minor_ver); + + if (DPSECI_VER(priv->major_ver, priv->minor_ver) > DPSECI_VER(5, 3)) { + err = dpseci_reset(priv->mc_io, 0, ls_dev->mc_handle); + if (err) { + dev_err(dev, "dpseci_reset() failed\n"); + goto err_get_vers; + } + } + + err = dpseci_get_attributes(priv->mc_io, 0, ls_dev->mc_handle, + &priv->dpseci_attr); + if (err) { + dev_err(dev, "dpseci_get_attributes() failed\n"); + goto err_get_vers; + } + + err = dpseci_get_sec_attr(priv->mc_io, 0, ls_dev->mc_handle, + &priv->sec_attr); + if (err) { + dev_err(dev, "dpseci_get_sec_attr() failed\n"); + goto err_get_vers; + } + + err = dpaa2_dpseci_congestion_setup(priv, ls_dev->mc_handle); + if (err) { + dev_err(dev, "setup_congestion() failed\n"); + goto err_get_vers; + } + + priv->num_pairs = min(priv->dpseci_attr.num_rx_queues, + priv->dpseci_attr.num_tx_queues); + if (priv->num_pairs > num_online_cpus()) { + dev_warn(dev, "%d queues won't be used\n", + priv->num_pairs - num_online_cpus()); + priv->num_pairs = num_online_cpus(); + } + + for (i = 0; i < priv->dpseci_attr.num_rx_queues; i++) { + err = dpseci_get_rx_queue(priv->mc_io, 0, ls_dev->mc_handle, i, + &priv->rx_queue_attr[i]); + if (err) { + dev_err(dev, "dpseci_get_rx_queue() failed\n"); + goto err_get_rx_queue; + } + } + + for (i = 0; i < priv->dpseci_attr.num_tx_queues; i++) { + err = dpseci_get_tx_queue(priv->mc_io, 0, ls_dev->mc_handle, i, + &priv->tx_queue_attr[i]); + if (err) { + dev_err(dev, "dpseci_get_tx_queue() failed\n"); + goto err_get_rx_queue; + } + } + + i = 0; + for_each_online_cpu(cpu) { + u8 j; + + j = i % priv->num_pairs; + + ppriv = per_cpu_ptr(priv->ppriv, cpu); + ppriv->req_fqid = priv->tx_queue_attr[j].fqid; + + /* + * Allow all cores to enqueue, while only some of them + * will take part in dequeuing. + */ + if (++i > priv->num_pairs) + continue; + + ppriv->rsp_fqid = priv->rx_queue_attr[j].fqid; + ppriv->prio = j; + + dev_dbg(dev, "pair %d: rx queue %d, tx queue %d\n", j, + priv->rx_queue_attr[j].fqid, + priv->tx_queue_attr[j].fqid); + + ppriv->net_dev.dev = *dev; + INIT_LIST_HEAD(&ppriv->net_dev.napi_list); + netif_napi_add_tx_weight(&ppriv->net_dev, &ppriv->napi, + dpaa2_dpseci_poll, + DPAA2_CAAM_NAPI_WEIGHT); + } + + return 0; + +err_get_rx_queue: + dpaa2_dpseci_congestion_free(priv); +err_get_vers: + dpseci_close(priv->mc_io, 0, ls_dev->mc_handle); +err_open: + return err; +} + +static int dpaa2_dpseci_enable(struct dpaa2_caam_priv *priv) +{ + struct device *dev = priv->dev; + struct fsl_mc_device *ls_dev = to_fsl_mc_device(dev); + struct dpaa2_caam_priv_per_cpu *ppriv; + int i; + + for (i = 0; i < priv->num_pairs; i++) { + ppriv = per_cpu_ptr(priv->ppriv, i); + napi_enable(&ppriv->napi); + } + + return dpseci_enable(priv->mc_io, 0, ls_dev->mc_handle); +} + +static int __cold dpaa2_dpseci_disable(struct dpaa2_caam_priv *priv) +{ + struct device *dev = priv->dev; + struct dpaa2_caam_priv_per_cpu *ppriv; + struct fsl_mc_device *ls_dev = to_fsl_mc_device(dev); + int i, err = 0, enabled; + + err = dpseci_disable(priv->mc_io, 0, ls_dev->mc_handle); + if (err) { + dev_err(dev, "dpseci_disable() failed\n"); + return err; + } + + err = dpseci_is_enabled(priv->mc_io, 0, ls_dev->mc_handle, &enabled); + if (err) { + dev_err(dev, "dpseci_is_enabled() failed\n"); + return err; + } + + dev_dbg(dev, "disable: %s\n", enabled ? "false" : "true"); + + for (i = 0; i < priv->num_pairs; i++) { + ppriv = per_cpu_ptr(priv->ppriv, i); + napi_disable(&ppriv->napi); + netif_napi_del(&ppriv->napi); + } + + return 0; +} + +static struct list_head hash_list; + +static int dpaa2_caam_probe(struct fsl_mc_device *dpseci_dev) +{ + struct device *dev; + struct dpaa2_caam_priv *priv; + int i, err = 0; + bool registered = false; + + /* + * There is no way to get CAAM endianness - there is no direct register + * space access and MC f/w does not provide this attribute. + * All DPAA2-based SoCs have little endian CAAM, thus hard-code this + * property. + */ + caam_little_end = true; + + caam_imx = false; + + dev = &dpseci_dev->dev; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + dev_set_drvdata(dev, priv); + + priv->domain = iommu_get_domain_for_dev(dev); + + qi_cache = kmem_cache_create("dpaa2_caamqicache", CAAM_QI_MEMCACHE_SIZE, + 0, 0, NULL); + if (!qi_cache) { + dev_err(dev, "Can't allocate SEC cache\n"); + return -ENOMEM; + } + + err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(49)); + if (err) { + dev_err(dev, "dma_set_mask_and_coherent() failed\n"); + goto err_dma_mask; + } + + /* Obtain a MC portal */ + err = fsl_mc_portal_allocate(dpseci_dev, 0, &priv->mc_io); + if (err) { + if (err == -ENXIO) + err = -EPROBE_DEFER; + else + dev_err(dev, "MC portal allocation failed\n"); + + goto err_dma_mask; + } + + priv->ppriv = alloc_percpu(*priv->ppriv); + if (!priv->ppriv) { + dev_err(dev, "alloc_percpu() failed\n"); + err = -ENOMEM; + goto err_alloc_ppriv; + } + + /* DPSECI initialization */ + err = dpaa2_dpseci_setup(dpseci_dev); + if (err) { + dev_err(dev, "dpaa2_dpseci_setup() failed\n"); + goto err_dpseci_setup; + } + + /* DPIO */ + err = dpaa2_dpseci_dpio_setup(priv); + if (err) { + dev_err_probe(dev, err, "dpaa2_dpseci_dpio_setup() failed\n"); + goto err_dpio_setup; + } + + /* DPSECI binding to DPIO */ + err = dpaa2_dpseci_bind(priv); + if (err) { + dev_err(dev, "dpaa2_dpseci_bind() failed\n"); + goto err_bind; + } + + /* DPSECI enable */ + err = dpaa2_dpseci_enable(priv); + if (err) { + dev_err(dev, "dpaa2_dpseci_enable() failed\n"); + goto err_bind; + } + + dpaa2_dpseci_debugfs_init(priv); + + /* register crypto algorithms the device supports */ + for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { + struct caam_skcipher_alg *t_alg = driver_algs + i; + u32 alg_sel = t_alg->caam.class1_alg_type & OP_ALG_ALGSEL_MASK; + + /* Skip DES algorithms if not supported by device */ + if (!priv->sec_attr.des_acc_num && + (alg_sel == OP_ALG_ALGSEL_3DES || + alg_sel == OP_ALG_ALGSEL_DES)) + continue; + + /* Skip AES algorithms if not supported by device */ + if (!priv->sec_attr.aes_acc_num && + alg_sel == OP_ALG_ALGSEL_AES) + continue; + + /* Skip CHACHA20 algorithms if not supported by device */ + if (alg_sel == OP_ALG_ALGSEL_CHACHA20 && + !priv->sec_attr.ccha_acc_num) + continue; + + t_alg->caam.dev = dev; + caam_skcipher_alg_init(t_alg); + + err = crypto_register_skcipher(&t_alg->skcipher); + if (err) { + dev_warn(dev, "%s alg registration failed: %d\n", + t_alg->skcipher.base.cra_driver_name, err); + continue; + } + + t_alg->registered = true; + registered = true; + } + + for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) { + struct caam_aead_alg *t_alg = driver_aeads + i; + u32 c1_alg_sel = t_alg->caam.class1_alg_type & + OP_ALG_ALGSEL_MASK; + u32 c2_alg_sel = t_alg->caam.class2_alg_type & + OP_ALG_ALGSEL_MASK; + + /* Skip DES algorithms if not supported by device */ + if (!priv->sec_attr.des_acc_num && + (c1_alg_sel == OP_ALG_ALGSEL_3DES || + c1_alg_sel == OP_ALG_ALGSEL_DES)) + continue; + + /* Skip AES algorithms if not supported by device */ + if (!priv->sec_attr.aes_acc_num && + c1_alg_sel == OP_ALG_ALGSEL_AES) + continue; + + /* Skip CHACHA20 algorithms if not supported by device */ + if (c1_alg_sel == OP_ALG_ALGSEL_CHACHA20 && + !priv->sec_attr.ccha_acc_num) + continue; + + /* Skip POLY1305 algorithms if not supported by device */ + if (c2_alg_sel == OP_ALG_ALGSEL_POLY1305 && + !priv->sec_attr.ptha_acc_num) + continue; + + /* + * Skip algorithms requiring message digests + * if MD not supported by device. + */ + if ((c2_alg_sel & ~OP_ALG_ALGSEL_SUBMASK) == 0x40 && + !priv->sec_attr.md_acc_num) + continue; + + t_alg->caam.dev = dev; + caam_aead_alg_init(t_alg); + + err = crypto_register_aead(&t_alg->aead); + if (err) { + dev_warn(dev, "%s alg registration failed: %d\n", + t_alg->aead.base.cra_driver_name, err); + continue; + } + + t_alg->registered = true; + registered = true; + } + if (registered) + dev_info(dev, "algorithms registered in /proc/crypto\n"); + + /* register hash algorithms the device supports */ + INIT_LIST_HEAD(&hash_list); + + /* + * Skip registration of any hashing algorithms if MD block + * is not present. + */ + if (!priv->sec_attr.md_acc_num) + return 0; + + for (i = 0; i < ARRAY_SIZE(driver_hash); i++) { + struct caam_hash_alg *t_alg; + struct caam_hash_template *alg = driver_hash + i; + + /* register hmac version */ + t_alg = caam_hash_alloc(dev, alg, true); + if (IS_ERR(t_alg)) { + err = PTR_ERR(t_alg); + dev_warn(dev, "%s hash alg allocation failed: %d\n", + alg->hmac_driver_name, err); + continue; + } + + err = crypto_register_ahash(&t_alg->ahash_alg); + if (err) { + dev_warn(dev, "%s alg registration failed: %d\n", + t_alg->ahash_alg.halg.base.cra_driver_name, + err); + kfree(t_alg); + } else { + list_add_tail(&t_alg->entry, &hash_list); + } + + /* register unkeyed version */ + t_alg = caam_hash_alloc(dev, alg, false); + if (IS_ERR(t_alg)) { + err = PTR_ERR(t_alg); + dev_warn(dev, "%s alg allocation failed: %d\n", + alg->driver_name, err); + continue; + } + + err = crypto_register_ahash(&t_alg->ahash_alg); + if (err) { + dev_warn(dev, "%s alg registration failed: %d\n", + t_alg->ahash_alg.halg.base.cra_driver_name, + err); + kfree(t_alg); + } else { + list_add_tail(&t_alg->entry, &hash_list); + } + } + if (!list_empty(&hash_list)) + dev_info(dev, "hash algorithms registered in /proc/crypto\n"); + + return err; + +err_bind: + dpaa2_dpseci_dpio_free(priv); +err_dpio_setup: + dpaa2_dpseci_free(priv); +err_dpseci_setup: + free_percpu(priv->ppriv); +err_alloc_ppriv: + fsl_mc_portal_free(priv->mc_io); +err_dma_mask: + kmem_cache_destroy(qi_cache); + + return err; +} + +static void __cold dpaa2_caam_remove(struct fsl_mc_device *ls_dev) +{ + struct device *dev; + struct dpaa2_caam_priv *priv; + int i; + + dev = &ls_dev->dev; + priv = dev_get_drvdata(dev); + + dpaa2_dpseci_debugfs_exit(priv); + + for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) { + struct caam_aead_alg *t_alg = driver_aeads + i; + + if (t_alg->registered) + crypto_unregister_aead(&t_alg->aead); + } + + for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { + struct caam_skcipher_alg *t_alg = driver_algs + i; + + if (t_alg->registered) + crypto_unregister_skcipher(&t_alg->skcipher); + } + + if (hash_list.next) { + struct caam_hash_alg *t_hash_alg, *p; + + list_for_each_entry_safe(t_hash_alg, p, &hash_list, entry) { + crypto_unregister_ahash(&t_hash_alg->ahash_alg); + list_del(&t_hash_alg->entry); + kfree(t_hash_alg); + } + } + + dpaa2_dpseci_disable(priv); + dpaa2_dpseci_dpio_free(priv); + dpaa2_dpseci_free(priv); + free_percpu(priv->ppriv); + fsl_mc_portal_free(priv->mc_io); + kmem_cache_destroy(qi_cache); +} + +int dpaa2_caam_enqueue(struct device *dev, struct caam_request *req) +{ + struct dpaa2_fd fd; + struct dpaa2_caam_priv *priv = dev_get_drvdata(dev); + struct dpaa2_caam_priv_per_cpu *ppriv; + int err = 0, i; + + if (IS_ERR(req)) + return PTR_ERR(req); + + if (priv->cscn_mem) { + dma_sync_single_for_cpu(priv->dev, priv->cscn_dma, + DPAA2_CSCN_SIZE, + DMA_FROM_DEVICE); + if (unlikely(dpaa2_cscn_state_congested(priv->cscn_mem))) { + dev_dbg_ratelimited(dev, "Dropping request\n"); + return -EBUSY; + } + } + + dpaa2_fl_set_flc(&req->fd_flt[1], req->flc_dma); + + req->fd_flt_dma = dma_map_single(dev, req->fd_flt, sizeof(req->fd_flt), + DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, req->fd_flt_dma)) { + dev_err(dev, "DMA mapping error for QI enqueue request\n"); + goto err_out; + } + + memset(&fd, 0, sizeof(fd)); + dpaa2_fd_set_format(&fd, dpaa2_fd_list); + dpaa2_fd_set_addr(&fd, req->fd_flt_dma); + dpaa2_fd_set_len(&fd, dpaa2_fl_get_len(&req->fd_flt[1])); + dpaa2_fd_set_flc(&fd, req->flc_dma); + + ppriv = raw_cpu_ptr(priv->ppriv); + for (i = 0; i < (priv->dpseci_attr.num_tx_queues << 1); i++) { + err = dpaa2_io_service_enqueue_fq(ppriv->dpio, ppriv->req_fqid, + &fd); + if (err != -EBUSY) + break; + + cpu_relax(); + } + + if (unlikely(err)) { + dev_err_ratelimited(dev, "Error enqueuing frame: %d\n", err); + goto err_out; + } + + return -EINPROGRESS; + +err_out: + dma_unmap_single(dev, req->fd_flt_dma, sizeof(req->fd_flt), + DMA_BIDIRECTIONAL); + return -EIO; +} +EXPORT_SYMBOL(dpaa2_caam_enqueue); + +static const struct fsl_mc_device_id dpaa2_caam_match_id_table[] = { + { + .vendor = FSL_MC_VENDOR_FREESCALE, + .obj_type = "dpseci", + }, + { .vendor = 0x0 } +}; +MODULE_DEVICE_TABLE(fslmc, dpaa2_caam_match_id_table); + +static struct fsl_mc_driver dpaa2_caam_driver = { + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + }, + .probe = dpaa2_caam_probe, + .remove = dpaa2_caam_remove, + .match_id_table = dpaa2_caam_match_id_table +}; + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_AUTHOR("Freescale Semiconductor, Inc"); +MODULE_DESCRIPTION("Freescale DPAA2 CAAM Driver"); + +module_fsl_mc_driver(dpaa2_caam_driver); |