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linux/drivers/crypto/caam/caamalg_qi2.c
Uwe Kleine-König 59272ad8d9 bus: fsl-mc: Make remove function return void 
The value returned by an fsl-mc driver's remove function is mostly
ignored.  (Only an error message is printed if the value is non-zero
and then device removal continues unconditionally.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com> # sanity checks
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Tested-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2023-05-30 18:58:43 -05:00

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// 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;
ctx->cdata.key_virt = 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);
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