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crypto: qat - add support for cbc(aes) ablkcipher

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Add support for cbc(aes) ablkcipher.

Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Acked-by: Bruce W. Allan <bruce.w.allan@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tadeusz Struk 2014-12-08 12:08:49 -08:00 committed by Herbert Xu
parent 82f82504b8
commit 338e84f3a9
3 changed files with 434 additions and 113 deletions
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2
drivers/crypto/qat/qat_common/icp_qat_hw.h
View File

@ -301,5 +301,5 @@ struct icp_qat_hw_cipher_aes256_f8 {
struct icp_qat_hw_cipher_algo_blk {
struct icp_qat_hw_cipher_aes256_f8 aes;
};
} __aligned(64);
#endif

530
drivers/crypto/qat/qat_common/qat_algs.c
View File

@ -63,15 +63,15 @@
#include "icp_qat_fw.h"
#include "icp_qat_fw_la.h"
#define QAT_AES_HW_CONFIG_ENC(alg) \
#define QAT_AES_HW_CONFIG_CBC_ENC(alg) \
ICP_QAT_HW_CIPHER_CONFIG_BUILD(ICP_QAT_HW_CIPHER_CBC_MODE, alg, \
ICP_QAT_HW_CIPHER_NO_CONVERT, \
ICP_QAT_HW_CIPHER_ENCRYPT)
ICP_QAT_HW_CIPHER_NO_CONVERT, \
ICP_QAT_HW_CIPHER_ENCRYPT)
#define QAT_AES_HW_CONFIG_DEC(alg) \
#define QAT_AES_HW_CONFIG_CBC_DEC(alg) \
ICP_QAT_HW_CIPHER_CONFIG_BUILD(ICP_QAT_HW_CIPHER_CBC_MODE, alg, \
ICP_QAT_HW_CIPHER_KEY_CONVERT, \
ICP_QAT_HW_CIPHER_DECRYPT)
ICP_QAT_HW_CIPHER_KEY_CONVERT, \
ICP_QAT_HW_CIPHER_DECRYPT)
static atomic_t active_dev;
@ -108,19 +108,31 @@ struct qat_auth_state {
uint8_t data[MAX_AUTH_STATE_SIZE + 64];
} __aligned(64);
struct qat_alg_session_ctx {
struct qat_alg_aead_ctx {
struct qat_alg_cd *enc_cd;
dma_addr_t enc_cd_paddr;
struct qat_alg_cd *dec_cd;
dma_addr_t enc_cd_paddr;
dma_addr_t dec_cd_paddr;
struct icp_qat_fw_la_bulk_req enc_fw_req_tmpl;
struct icp_qat_fw_la_bulk_req dec_fw_req_tmpl;
struct qat_crypto_instance *inst;
struct crypto_tfm *tfm;
struct icp_qat_fw_la_bulk_req enc_fw_req;
struct icp_qat_fw_la_bulk_req dec_fw_req;
struct crypto_shash *hash_tfm;
enum icp_qat_hw_auth_algo qat_hash_alg;
struct qat_crypto_instance *inst;
struct crypto_tfm *tfm;
uint8_t salt[AES_BLOCK_SIZE];
spinlock_t lock; /* protects qat_alg_session_ctx struct */
spinlock_t lock; /* protects qat_alg_aead_ctx struct */
};
struct qat_alg_ablkcipher_ctx {
struct icp_qat_hw_cipher_algo_blk *enc_cd;
struct icp_qat_hw_cipher_algo_blk *dec_cd;
dma_addr_t enc_cd_paddr;
dma_addr_t dec_cd_paddr;
struct icp_qat_fw_la_bulk_req enc_fw_req;
struct icp_qat_fw_la_bulk_req dec_fw_req;
struct qat_crypto_instance *inst;
struct crypto_tfm *tfm;
spinlock_t lock; /* protects qat_alg_ablkcipher_ctx struct */
};
static int get_current_node(void)
@ -144,7 +156,7 @@ static int qat_get_inter_state_size(enum icp_qat_hw_auth_algo qat_hash_alg)
}
static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash,
struct qat_alg_session_ctx *ctx,
struct qat_alg_aead_ctx *ctx,
const uint8_t *auth_key,
unsigned int auth_keylen)
{
@ -267,8 +279,6 @@ static void qat_alg_init_common_hdr(struct icp_qat_fw_comn_req_hdr *header)
header->comn_req_flags =
ICP_QAT_FW_COMN_FLAGS_BUILD(QAT_COMN_CD_FLD_TYPE_64BIT_ADR,
QAT_COMN_PTR_TYPE_SGL);
ICP_QAT_FW_LA_DIGEST_IN_BUFFER_SET(header->serv_specif_flags,
ICP_QAT_FW_LA_DIGEST_IN_BUFFER);
ICP_QAT_FW_LA_PARTIAL_SET(header->serv_specif_flags,
ICP_QAT_FW_LA_PARTIAL_NONE);
ICP_QAT_FW_LA_CIPH_IV_FLD_FLAG_SET(header->serv_specif_flags,
@ -279,8 +289,9 @@ static void qat_alg_init_common_hdr(struct icp_qat_fw_comn_req_hdr *header)
ICP_QAT_FW_LA_NO_UPDATE_STATE);
}
static int qat_alg_init_enc_session(struct qat_alg_session_ctx *ctx,
int alg, struct crypto_authenc_keys *keys)
static int qat_alg_aead_init_enc_session(struct qat_alg_aead_ctx *ctx,
int alg,
struct crypto_authenc_keys *keys)
{
struct crypto_aead *aead_tfm = __crypto_aead_cast(ctx->tfm);
unsigned int digestsize = crypto_aead_crt(aead_tfm)->authsize;
@ -289,7 +300,7 @@ static int qat_alg_init_enc_session(struct qat_alg_session_ctx *ctx,
struct icp_qat_hw_auth_algo_blk *hash =
(struct icp_qat_hw_auth_algo_blk *)((char *)enc_ctx +
sizeof(struct icp_qat_hw_auth_setup) + keys->enckeylen);
struct icp_qat_fw_la_bulk_req *req_tmpl = &ctx->enc_fw_req_tmpl;
struct icp_qat_fw_la_bulk_req *req_tmpl = &ctx->enc_fw_req;
struct icp_qat_fw_comn_req_hdr_cd_pars *cd_pars = &req_tmpl->cd_pars;
struct icp_qat_fw_comn_req_hdr *header = &req_tmpl->comn_hdr;
void *ptr = &req_tmpl->cd_ctrl;
@ -297,7 +308,7 @@ static int qat_alg_init_enc_session(struct qat_alg_session_ctx *ctx,
struct icp_qat_fw_auth_cd_ctrl_hdr *hash_cd_ctrl = ptr;
/* CD setup */
cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_ENC(alg);
cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_CBC_ENC(alg);
memcpy(cipher->aes.key, keys->enckey, keys->enckeylen);
hash->sha.inner_setup.auth_config.config =
ICP_QAT_HW_AUTH_CONFIG_BUILD(ICP_QAT_HW_AUTH_MODE1,
@ -311,6 +322,8 @@ static int qat_alg_init_enc_session(struct qat_alg_session_ctx *ctx,
/* Request setup */
qat_alg_init_common_hdr(header);
header->service_cmd_id = ICP_QAT_FW_LA_CMD_CIPHER_HASH;
ICP_QAT_FW_LA_DIGEST_IN_BUFFER_SET(header->serv_specif_flags,
ICP_QAT_FW_LA_DIGEST_IN_BUFFER);
ICP_QAT_FW_LA_RET_AUTH_SET(header->serv_specif_flags,
ICP_QAT_FW_LA_RET_AUTH_RES);
ICP_QAT_FW_LA_CMP_AUTH_SET(header->serv_specif_flags,
@ -356,8 +369,9 @@ static int qat_alg_init_enc_session(struct qat_alg_session_ctx *ctx,
return 0;
}
static int qat_alg_init_dec_session(struct qat_alg_session_ctx *ctx,
int alg, struct crypto_authenc_keys *keys)
static int qat_alg_aead_init_dec_session(struct qat_alg_aead_ctx *ctx,
int alg,
struct crypto_authenc_keys *keys)
{
struct crypto_aead *aead_tfm = __crypto_aead_cast(ctx->tfm);
unsigned int digestsize = crypto_aead_crt(aead_tfm)->authsize;
@ -367,7 +381,7 @@ static int qat_alg_init_dec_session(struct qat_alg_session_ctx *ctx,
(struct icp_qat_hw_cipher_algo_blk *)((char *)dec_ctx +
sizeof(struct icp_qat_hw_auth_setup) +
roundup(crypto_shash_digestsize(ctx->hash_tfm), 8) * 2);
struct icp_qat_fw_la_bulk_req *req_tmpl = &ctx->dec_fw_req_tmpl;
struct icp_qat_fw_la_bulk_req *req_tmpl = &ctx->dec_fw_req;
struct icp_qat_fw_comn_req_hdr_cd_pars *cd_pars = &req_tmpl->cd_pars;
struct icp_qat_fw_comn_req_hdr *header = &req_tmpl->comn_hdr;
void *ptr = &req_tmpl->cd_ctrl;
@ -379,7 +393,7 @@ static int qat_alg_init_dec_session(struct qat_alg_session_ctx *ctx,
sizeof(struct icp_qat_fw_la_cipher_req_params));
/* CD setup */
cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_DEC(alg);
cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_CBC_DEC(alg);
memcpy(cipher->aes.key, keys->enckey, keys->enckeylen);
hash->sha.inner_setup.auth_config.config =
ICP_QAT_HW_AUTH_CONFIG_BUILD(ICP_QAT_HW_AUTH_MODE1,
@ -394,6 +408,8 @@ static int qat_alg_init_dec_session(struct qat_alg_session_ctx *ctx,
/* Request setup */
qat_alg_init_common_hdr(header);
header->service_cmd_id = ICP_QAT_FW_LA_CMD_HASH_CIPHER;
ICP_QAT_FW_LA_DIGEST_IN_BUFFER_SET(header->serv_specif_flags,
ICP_QAT_FW_LA_DIGEST_IN_BUFFER);
ICP_QAT_FW_LA_RET_AUTH_SET(header->serv_specif_flags,
ICP_QAT_FW_LA_NO_RET_AUTH_RES);
ICP_QAT_FW_LA_CMP_AUTH_SET(header->serv_specif_flags,
@ -444,8 +460,74 @@ static int qat_alg_init_dec_session(struct qat_alg_session_ctx *ctx,
return 0;
}
static int qat_alg_init_sessions(struct qat_alg_session_ctx *ctx,
const uint8_t *key, unsigned int keylen)
static void qat_alg_ablkcipher_init_com(struct qat_alg_ablkcipher_ctx *ctx,
struct icp_qat_fw_la_bulk_req *req,
struct icp_qat_hw_cipher_algo_blk *cd,
const uint8_t *key, unsigned int keylen)
{
struct icp_qat_fw_comn_req_hdr_cd_pars *cd_pars = &req->cd_pars;
struct icp_qat_fw_comn_req_hdr *header = &req->comn_hdr;
struct icp_qat_fw_cipher_cd_ctrl_hdr *cd_ctrl = (void *)&req->cd_ctrl;
memcpy(cd->aes.key, key, keylen);
qat_alg_init_common_hdr(header);
header->service_cmd_id = ICP_QAT_FW_LA_CMD_CIPHER;
cd_pars->u.s.content_desc_params_sz =
sizeof(struct icp_qat_hw_cipher_algo_blk) >> 3;
/* Cipher CD config setup */
cd_ctrl->cipher_key_sz = keylen >> 3;
cd_ctrl->cipher_state_sz = AES_BLOCK_SIZE >> 3;
cd_ctrl->cipher_cfg_offset = 0;
ICP_QAT_FW_COMN_CURR_ID_SET(cd_ctrl, ICP_QAT_FW_SLICE_CIPHER);
ICP_QAT_FW_COMN_NEXT_ID_SET(cd_ctrl, ICP_QAT_FW_SLICE_DRAM_WR);
}
static void qat_alg_ablkcipher_init_enc(struct qat_alg_ablkcipher_ctx *ctx,
int alg, const uint8_t *key,
unsigned int keylen)
{
struct icp_qat_hw_cipher_algo_blk *enc_cd = ctx->enc_cd;
struct icp_qat_fw_la_bulk_req *req = &ctx->enc_fw_req;
struct icp_qat_fw_comn_req_hdr_cd_pars *cd_pars = &req->cd_pars;
qat_alg_ablkcipher_init_com(ctx, req, enc_cd, key, keylen);
cd_pars->u.s.content_desc_addr = ctx->enc_cd_paddr;
enc_cd->aes.cipher_config.val = QAT_AES_HW_CONFIG_CBC_ENC(alg);
}
static void qat_alg_ablkcipher_init_dec(struct qat_alg_ablkcipher_ctx *ctx,
int alg, const uint8_t *key,
unsigned int keylen)
{
struct icp_qat_hw_cipher_algo_blk *dec_cd = ctx->dec_cd;
struct icp_qat_fw_la_bulk_req *req = &ctx->dec_fw_req;
struct icp_qat_fw_comn_req_hdr_cd_pars *cd_pars = &req->cd_pars;
qat_alg_ablkcipher_init_com(ctx, req, dec_cd, key, keylen);
cd_pars->u.s.content_desc_addr = ctx->dec_cd_paddr;
dec_cd->aes.cipher_config.val = QAT_AES_HW_CONFIG_CBC_DEC(alg);
}
static int qat_alg_validate_key(int key_len, int *alg)
{
switch (key_len) {
case AES_KEYSIZE_128:
*alg = ICP_QAT_HW_CIPHER_ALGO_AES128;
break;
case AES_KEYSIZE_192:
*alg = ICP_QAT_HW_CIPHER_ALGO_AES192;
break;
case AES_KEYSIZE_256:
*alg = ICP_QAT_HW_CIPHER_ALGO_AES256;
break;
default:
return -EINVAL;
}
return 0;
}
static int qat_alg_aead_init_sessions(struct qat_alg_aead_ctx *ctx,
const uint8_t *key, unsigned int keylen)
{
struct crypto_authenc_keys keys;
int alg;
@ -456,24 +538,13 @@ static int qat_alg_init_sessions(struct qat_alg_session_ctx *ctx,
if (crypto_authenc_extractkeys(&keys, key, keylen))
goto bad_key;
switch (keys.enckeylen) {
case AES_KEYSIZE_128:
alg = ICP_QAT_HW_CIPHER_ALGO_AES128;
break;
case AES_KEYSIZE_192:
alg = ICP_QAT_HW_CIPHER_ALGO_AES192;
break;
case AES_KEYSIZE_256:
alg = ICP_QAT_HW_CIPHER_ALGO_AES256;
break;
default:
if (qat_alg_validate_key(keys.enckeylen, &alg))
goto bad_key;
}
if (qat_alg_init_enc_session(ctx, alg, &keys))
if (qat_alg_aead_init_enc_session(ctx, alg, &keys))
goto error;
if (qat_alg_init_dec_session(ctx, alg, &keys))
if (qat_alg_aead_init_dec_session(ctx, alg, &keys))
goto error;
return 0;
@ -484,22 +555,37 @@ error:
return -EFAULT;
}
static int qat_alg_setkey(struct crypto_aead *tfm, const uint8_t *key,
unsigned int keylen)
static int qat_alg_ablkcipher_init_sessions(struct qat_alg_ablkcipher_ctx *ctx,
const uint8_t *key,
unsigned int keylen)
{
struct qat_alg_session_ctx *ctx = crypto_aead_ctx(tfm);
int alg;
if (qat_alg_validate_key(keylen, &alg))
goto bad_key;
qat_alg_ablkcipher_init_enc(ctx, alg, key, keylen);
qat_alg_ablkcipher_init_dec(ctx, alg, key, keylen);
return 0;
bad_key:
crypto_tfm_set_flags(ctx->tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
static int qat_alg_aead_setkey(struct crypto_aead *tfm, const uint8_t *key,
unsigned int keylen)
{
struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(tfm);
struct device *dev;
spin_lock(&ctx->lock);
if (ctx->enc_cd) {
/* rekeying */
dev = &GET_DEV(ctx->inst->accel_dev);
memzero_explicit(ctx->enc_cd, sizeof(struct qat_alg_cd));
memzero_explicit(ctx->dec_cd, sizeof(struct qat_alg_cd));
memzero_explicit(&ctx->enc_fw_req_tmpl,
sizeof(struct icp_qat_fw_la_bulk_req));
memzero_explicit(&ctx->dec_fw_req_tmpl,
sizeof(struct icp_qat_fw_la_bulk_req));
memzero_explicit(ctx->enc_cd, sizeof(*ctx->enc_cd));
memzero_explicit(ctx->dec_cd, sizeof(*ctx->dec_cd));
memzero_explicit(&ctx->enc_fw_req, sizeof(ctx->enc_fw_req));
memzero_explicit(&ctx->dec_fw_req, sizeof(ctx->dec_fw_req));
} else {
/* new key */
int node = get_current_node();
@ -512,16 +598,14 @@ static int qat_alg_setkey(struct crypto_aead *tfm, const uint8_t *key,
dev = &GET_DEV(inst->accel_dev);
ctx->inst = inst;
ctx->enc_cd = dma_zalloc_coherent(dev,
sizeof(struct qat_alg_cd),
ctx->enc_cd = dma_zalloc_coherent(dev, sizeof(*ctx->enc_cd),
&ctx->enc_cd_paddr,
GFP_ATOMIC);
if (!ctx->enc_cd) {
spin_unlock(&ctx->lock);
return -ENOMEM;
}
ctx->dec_cd = dma_zalloc_coherent(dev,
sizeof(struct qat_alg_cd),
ctx->dec_cd = dma_zalloc_coherent(dev, sizeof(*ctx->dec_cd),
&ctx->dec_cd_paddr,
GFP_ATOMIC);
if (!ctx->dec_cd) {
@ -530,7 +614,7 @@ static int qat_alg_setkey(struct crypto_aead *tfm, const uint8_t *key,
}
}
spin_unlock(&ctx->lock);
if (qat_alg_init_sessions(ctx, key, keylen))
if (qat_alg_aead_init_sessions(ctx, key, keylen))
goto out_free_all;
return 0;
@ -722,14 +806,12 @@ err:
return -ENOMEM;
}
void qat_alg_callback(void *resp)
static void qat_aead_alg_callback(struct icp_qat_fw_la_resp *qat_resp,
struct qat_crypto_request *qat_req)
{
struct icp_qat_fw_la_resp *qat_resp = resp;
struct qat_crypto_request *qat_req =
(void *)(__force long)qat_resp->opaque_data;
struct qat_alg_session_ctx *ctx = qat_req->ctx;
struct qat_alg_aead_ctx *ctx = qat_req->aead_ctx;
struct qat_crypto_instance *inst = ctx->inst;
struct aead_request *areq = qat_req->areq;
struct aead_request *areq = qat_req->aead_req;
uint8_t stat_filed = qat_resp->comn_resp.comn_status;
int res = 0, qat_res = ICP_QAT_FW_COMN_RESP_CRYPTO_STAT_GET(stat_filed);
@ -739,11 +821,35 @@ void qat_alg_callback(void *resp)
areq->base.complete(&areq->base, res);
}
static int qat_alg_dec(struct aead_request *areq)
static void qat_ablkcipher_alg_callback(struct icp_qat_fw_la_resp *qat_resp,
struct qat_crypto_request *qat_req)
{
struct qat_alg_ablkcipher_ctx *ctx = qat_req->ablkcipher_ctx;
struct qat_crypto_instance *inst = ctx->inst;
struct ablkcipher_request *areq = qat_req->ablkcipher_req;
uint8_t stat_filed = qat_resp->comn_resp.comn_status;
int res = 0, qat_res = ICP_QAT_FW_COMN_RESP_CRYPTO_STAT_GET(stat_filed);
qat_alg_free_bufl(inst, qat_req);
if (unlikely(qat_res != ICP_QAT_FW_COMN_STATUS_FLAG_OK))
res = -EINVAL;
areq->base.complete(&areq->base, res);
}
void qat_alg_callback(void *resp)
{
struct icp_qat_fw_la_resp *qat_resp = resp;
struct qat_crypto_request *qat_req =
(void *)(__force long)qat_resp->opaque_data;
qat_req->cb(qat_resp, qat_req);
}
static int qat_alg_aead_dec(struct aead_request *areq)
{
struct crypto_aead *aead_tfm = crypto_aead_reqtfm(areq);
struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm);
struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_crypto_request *qat_req = aead_request_ctx(areq);
struct icp_qat_fw_la_cipher_req_params *cipher_param;
struct icp_qat_fw_la_auth_req_params *auth_param;
@ -757,9 +863,10 @@ static int qat_alg_dec(struct aead_request *areq)
return ret;
msg = &qat_req->req;
*msg = ctx->dec_fw_req_tmpl;
qat_req->ctx = ctx;
qat_req->areq = areq;
*msg = ctx->dec_fw_req;
qat_req->aead_ctx = ctx;
qat_req->aead_req = areq;
qat_req->cb = qat_aead_alg_callback;
qat_req->req.comn_mid.opaque_data = (uint64_t)(__force long)qat_req;
qat_req->req.comn_mid.src_data_addr = qat_req->buf.blp;
qat_req->req.comn_mid.dest_data_addr = qat_req->buf.bloutp;
@ -782,12 +889,12 @@ static int qat_alg_dec(struct aead_request *areq)
return -EINPROGRESS;
}
static int qat_alg_enc_internal(struct aead_request *areq, uint8_t *iv,
int enc_iv)
static int qat_alg_aead_enc_internal(struct aead_request *areq, uint8_t *iv,
int enc_iv)
{
struct crypto_aead *aead_tfm = crypto_aead_reqtfm(areq);
struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm);
struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_crypto_request *qat_req = aead_request_ctx(areq);
struct icp_qat_fw_la_cipher_req_params *cipher_param;
struct icp_qat_fw_la_auth_req_params *auth_param;
@ -800,9 +907,10 @@ static int qat_alg_enc_internal(struct aead_request *areq, uint8_t *iv,
return ret;
msg = &qat_req->req;
*msg = ctx->enc_fw_req_tmpl;
qat_req->ctx = ctx;
qat_req->areq = areq;
*msg = ctx->enc_fw_req;
qat_req->aead_ctx = ctx;
qat_req->aead_req = areq;
qat_req->cb = qat_aead_alg_callback;
qat_req->req.comn_mid.opaque_data = (uint64_t)(__force long)qat_req;
qat_req->req.comn_mid.src_data_addr = qat_req->buf.blp;
qat_req->req.comn_mid.dest_data_addr = qat_req->buf.bloutp;
@ -831,29 +939,167 @@ static int qat_alg_enc_internal(struct aead_request *areq, uint8_t *iv,
return -EINPROGRESS;
}
static int qat_alg_enc(struct aead_request *areq)
static int qat_alg_aead_enc(struct aead_request *areq)
{
return qat_alg_enc_internal(areq, areq->iv, 0);
return qat_alg_aead_enc_internal(areq, areq->iv, 0);
}
static int qat_alg_genivenc(struct aead_givcrypt_request *req)
static int qat_alg_aead_genivenc(struct aead_givcrypt_request *req)
{
struct crypto_aead *aead_tfm = crypto_aead_reqtfm(&req->areq);
struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm);
struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
__be64 seq;
memcpy(req->giv, ctx->salt, AES_BLOCK_SIZE);
seq = cpu_to_be64(req->seq);
memcpy(req->giv + AES_BLOCK_SIZE - sizeof(uint64_t),
&seq, sizeof(uint64_t));
return qat_alg_enc_internal(&req->areq, req->giv, 1);
return qat_alg_aead_enc_internal(&req->areq, req->giv, 1);
}
static int qat_alg_init(struct crypto_tfm *tfm,
enum icp_qat_hw_auth_algo hash, const char *hash_name)
static int qat_alg_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
const uint8_t *key,
unsigned int keylen)
{
struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_alg_ablkcipher_ctx *ctx = crypto_ablkcipher_ctx(tfm);
struct device *dev;
spin_lock(&ctx->lock);
if (ctx->enc_cd) {
/* rekeying */
dev = &GET_DEV(ctx->inst->accel_dev);
memzero_explicit(ctx->enc_cd, sizeof(*ctx->enc_cd));
memzero_explicit(ctx->dec_cd, sizeof(*ctx->dec_cd));
memzero_explicit(&ctx->enc_fw_req, sizeof(ctx->enc_fw_req));
memzero_explicit(&ctx->dec_fw_req, sizeof(ctx->dec_fw_req));
} else {
/* new key */
int node = get_current_node();
struct qat_crypto_instance *inst =
qat_crypto_get_instance_node(node);
if (!inst) {
spin_unlock(&ctx->lock);
return -EINVAL;
}
dev = &GET_DEV(inst->accel_dev);
ctx->inst = inst;
ctx->enc_cd = dma_zalloc_coherent(dev, sizeof(*ctx->enc_cd),
&ctx->enc_cd_paddr,
GFP_ATOMIC);
if (!ctx->enc_cd) {
spin_unlock(&ctx->lock);
return -ENOMEM;
}
ctx->dec_cd = dma_zalloc_coherent(dev, sizeof(*ctx->dec_cd),
&ctx->dec_cd_paddr,
GFP_ATOMIC);
if (!ctx->dec_cd) {
spin_unlock(&ctx->lock);
goto out_free_enc;
}
}
spin_unlock(&ctx->lock);
if (qat_alg_ablkcipher_init_sessions(ctx, key, keylen))
goto out_free_all;
return 0;
out_free_all:
memzero_explicit(ctx->dec_cd, sizeof(*ctx->enc_cd));
dma_free_coherent(dev, sizeof(*ctx->enc_cd),
ctx->dec_cd, ctx->dec_cd_paddr);
ctx->dec_cd = NULL;
out_free_enc:
memzero_explicit(ctx->enc_cd, sizeof(*ctx->dec_cd));
dma_free_coherent(dev, sizeof(*ctx->dec_cd),
ctx->enc_cd, ctx->enc_cd_paddr);
ctx->enc_cd = NULL;
return -ENOMEM;
}
static int qat_alg_ablkcipher_encrypt(struct ablkcipher_request *req)
{
struct crypto_ablkcipher *atfm = crypto_ablkcipher_reqtfm(req);
struct crypto_tfm *tfm = crypto_ablkcipher_tfm(atfm);
struct qat_alg_ablkcipher_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_crypto_request *qat_req = ablkcipher_request_ctx(req);
struct icp_qat_fw_la_cipher_req_params *cipher_param;
struct icp_qat_fw_la_bulk_req *msg;
int ret, ctr = 0;
ret = qat_alg_sgl_to_bufl(ctx->inst, NULL, req->src, req->dst,
NULL, 0, qat_req);
if (unlikely(ret))
return ret;
msg = &qat_req->req;
*msg = ctx->enc_fw_req;
qat_req->ablkcipher_ctx = ctx;
qat_req->ablkcipher_req = req;
qat_req->cb = qat_ablkcipher_alg_callback;
qat_req->req.comn_mid.opaque_data = (uint64_t)(__force long)qat_req;
qat_req->req.comn_mid.src_data_addr = qat_req->buf.blp;
qat_req->req.comn_mid.dest_data_addr = qat_req->buf.bloutp;
cipher_param = (void *)&qat_req->req.serv_specif_rqpars;
cipher_param->cipher_length = req->nbytes;
cipher_param->cipher_offset = 0;
memcpy(cipher_param->u.cipher_IV_array, req->info, AES_BLOCK_SIZE);
do {
ret = adf_send_message(ctx->inst->sym_tx, (uint32_t *)msg);
} while (ret == -EAGAIN && ctr++ < 10);
if (ret == -EAGAIN) {
qat_alg_free_bufl(ctx->inst, qat_req);
return -EBUSY;
}
return -EINPROGRESS;
}
static int qat_alg_ablkcipher_decrypt(struct ablkcipher_request *req)
{
struct crypto_ablkcipher *atfm = crypto_ablkcipher_reqtfm(req);
struct crypto_tfm *tfm = crypto_ablkcipher_tfm(atfm);
struct qat_alg_ablkcipher_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_crypto_request *qat_req = ablkcipher_request_ctx(req);
struct icp_qat_fw_la_cipher_req_params *cipher_param;
struct icp_qat_fw_la_bulk_req *msg;
int ret, ctr = 0;
ret = qat_alg_sgl_to_bufl(ctx->inst, NULL, req->src, req->dst,
NULL, 0, qat_req);
if (unlikely(ret))
return ret;
msg = &qat_req->req;
*msg = ctx->dec_fw_req;
qat_req->ablkcipher_ctx = ctx;
qat_req->ablkcipher_req = req;
qat_req->cb = qat_ablkcipher_alg_callback;
qat_req->req.comn_mid.opaque_data = (uint64_t)(__force long)qat_req;
qat_req->req.comn_mid.src_data_addr = qat_req->buf.blp;
qat_req->req.comn_mid.dest_data_addr = qat_req->buf.bloutp;
cipher_param = (void *)&qat_req->req.serv_specif_rqpars;
cipher_param->cipher_length = req->nbytes;
cipher_param->cipher_offset = 0;
memcpy(cipher_param->u.cipher_IV_array, req->info, AES_BLOCK_SIZE);
do {
ret = adf_send_message(ctx->inst->sym_tx, (uint32_t *)msg);
} while (ret == -EAGAIN && ctr++ < 10);
if (ret == -EAGAIN) {
qat_alg_free_bufl(ctx->inst, qat_req);
return -EBUSY;
}
return -EINPROGRESS;
}
static int qat_alg_aead_init(struct crypto_tfm *tfm,
enum icp_qat_hw_auth_algo hash,
const char *hash_name)
{
struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
memzero_explicit(ctx, sizeof(*ctx));
ctx->hash_tfm = crypto_alloc_shash(hash_name, 0, 0);
@ -867,24 +1113,24 @@ static int qat_alg_init(struct crypto_tfm *tfm,
return 0;
}
static int qat_alg_sha1_init(struct crypto_tfm *tfm)
static int qat_alg_aead_sha1_init(struct crypto_tfm *tfm)
{
return qat_alg_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA1, "sha1");
return qat_alg_aead_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA1, "sha1");
}
static int qat_alg_sha256_init(struct crypto_tfm *tfm)
static int qat_alg_aead_sha256_init(struct crypto_tfm *tfm)
{
return qat_alg_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA256, "sha256");
return qat_alg_aead_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA256, "sha256");
}
static int qat_alg_sha512_init(struct crypto_tfm *tfm)
static int qat_alg_aead_sha512_init(struct crypto_tfm *tfm)
{
return qat_alg_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA512, "sha512");
return qat_alg_aead_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA512, "sha512");
}
static void qat_alg_exit(struct crypto_tfm *tfm)
static void qat_alg_aead_exit(struct crypto_tfm *tfm)
{
struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_crypto_instance *inst = ctx->inst;
struct device *dev;
@ -908,24 +1154,63 @@ static void qat_alg_exit(struct crypto_tfm *tfm)
qat_crypto_put_instance(inst);
}
static int qat_alg_ablkcipher_init(struct crypto_tfm *tfm)
{
struct qat_alg_ablkcipher_ctx *ctx = crypto_tfm_ctx(tfm);
memzero_explicit(ctx, sizeof(*ctx));
spin_lock_init(&ctx->lock);
tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
sizeof(struct qat_crypto_request);
ctx->tfm = tfm;
return 0;
}
static void qat_alg_ablkcipher_exit(struct crypto_tfm *tfm)
{
struct qat_alg_ablkcipher_ctx *ctx = crypto_tfm_ctx(tfm);
struct qat_crypto_instance *inst = ctx->inst;
struct device *dev;
if (!inst)
return;
dev = &GET_DEV(inst->accel_dev);
if (ctx->enc_cd) {
memzero_explicit(ctx->enc_cd,
sizeof(struct icp_qat_hw_cipher_algo_blk));
dma_free_coherent(dev,
sizeof(struct icp_qat_hw_cipher_algo_blk),
ctx->enc_cd, ctx->enc_cd_paddr);
}
if (ctx->dec_cd) {
memzero_explicit(ctx->dec_cd,
sizeof(struct icp_qat_hw_cipher_algo_blk));
dma_free_coherent(dev,
sizeof(struct icp_qat_hw_cipher_algo_blk),
ctx->dec_cd, ctx->dec_cd_paddr);
}
qat_crypto_put_instance(inst);
}
static struct crypto_alg qat_algs[] = { {
.cra_name = "authenc(hmac(sha1),cbc(aes))",
.cra_driver_name = "qat_aes_cbc_hmac_sha1",
.cra_priority = 4001,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct qat_alg_session_ctx),
.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_aead_type,
.cra_module = THIS_MODULE,
.cra_init = qat_alg_sha1_init,
.cra_exit = qat_alg_exit,
.cra_init = qat_alg_aead_sha1_init,
.cra_exit = qat_alg_aead_exit,
.cra_u = {
.aead = {
.setkey = qat_alg_setkey,
.decrypt = qat_alg_dec,
.encrypt = qat_alg_enc,
.givencrypt = qat_alg_genivenc,
.setkey = qat_alg_aead_setkey,
.decrypt = qat_alg_aead_dec,
.encrypt = qat_alg_aead_enc,
.givencrypt = qat_alg_aead_genivenc,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
},
@ -936,18 +1221,18 @@ static struct crypto_alg qat_algs[] = { {
.cra_priority = 4001,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct qat_alg_session_ctx),
.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_aead_type,
.cra_module = THIS_MODULE,
.cra_init = qat_alg_sha256_init,
.cra_exit = qat_alg_exit,
.cra_init = qat_alg_aead_sha256_init,
.cra_exit = qat_alg_aead_exit,
.cra_u = {
.aead = {
.setkey = qat_alg_setkey,
.decrypt = qat_alg_dec,
.encrypt = qat_alg_enc,
.givencrypt = qat_alg_genivenc,
.setkey = qat_alg_aead_setkey,
.decrypt = qat_alg_aead_dec,
.encrypt = qat_alg_aead_enc,
.givencrypt = qat_alg_aead_genivenc,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
},
@ -958,22 +1243,44 @@ static struct crypto_alg qat_algs[] = { {
.cra_priority = 4001,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct qat_alg_session_ctx),
.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_aead_type,
.cra_module = THIS_MODULE,
.cra_init = qat_alg_sha512_init,
.cra_exit = qat_alg_exit,
.cra_init = qat_alg_aead_sha512_init,
.cra_exit = qat_alg_aead_exit,
.cra_u = {
.aead = {
.setkey = qat_alg_setkey,
.decrypt = qat_alg_dec,
.encrypt = qat_alg_enc,
.givencrypt = qat_alg_genivenc,
.setkey = qat_alg_aead_setkey,
.decrypt = qat_alg_aead_dec,
.encrypt = qat_alg_aead_enc,
.givencrypt = qat_alg_aead_genivenc,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
},
},
}, {
.cra_name = "cbc(aes)",
.cra_driver_name = "qat_aes_cbc",
.cra_priority = 4001,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct qat_alg_ablkcipher_ctx),
.cra_alignmask = 0,
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = qat_alg_ablkcipher_init,
.cra_exit = qat_alg_ablkcipher_exit,
.cra_u = {
.ablkcipher = {
.setkey = qat_alg_ablkcipher_setkey,
.decrypt = qat_alg_ablkcipher_decrypt,
.encrypt = qat_alg_ablkcipher_encrypt,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
},
},
} };
int qat_algs_register(void)
@ -982,8 +1289,11 @@ int qat_algs_register(void)
int i;
for (i = 0; i < ARRAY_SIZE(qat_algs); i++)
qat_algs[i].cra_flags = CRYPTO_ALG_TYPE_AEAD |
CRYPTO_ALG_ASYNC;
qat_algs[i].cra_flags =
(qat_algs[i].cra_type == &crypto_aead_type) ?
CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC :
CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC;
return crypto_register_algs(qat_algs, ARRAY_SIZE(qat_algs));
}
return 0;

15
drivers/crypto/qat/qat_common/qat_crypto.h
View File

@ -75,10 +75,21 @@ struct qat_crypto_request_buffs {
size_t sz_out;
};
struct qat_crypto_request;
struct qat_crypto_request {
struct icp_qat_fw_la_bulk_req req;
struct qat_alg_session_ctx *ctx;
struct aead_request *areq;
union {
struct qat_alg_aead_ctx *aead_ctx;
struct qat_alg_ablkcipher_ctx *ablkcipher_ctx;
};
union {
struct aead_request *aead_req;
struct ablkcipher_request *ablkcipher_req;
};
struct qat_crypto_request_buffs buf;
void (*cb)(struct icp_qat_fw_la_resp *resp,
struct qat_crypto_request *req);
};
#endif