Add support for ctr and xts encryption modes.
Signed-off-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx>
---
drivers/crypto/qat/qat_common/qat_algs.c | 166 +++++++++++++++++++++++-------
1 file changed, 127 insertions(+), 39 deletions(-)
diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c
index 2bd913a..7a8cbd2 100644
--- a/drivers/crypto/qat/qat_common/qat_algs.c
+++ b/drivers/crypto/qat/qat_common/qat_algs.c
@@ -62,13 +62,13 @@
#include "icp_qat_fw.h"
#include "icp_qat_fw_la.h"
-#define QAT_AES_HW_CONFIG_CBC_ENC(alg) \
- ICP_QAT_HW_CIPHER_CONFIG_BUILD(ICP_QAT_HW_CIPHER_CBC_MODE, alg, \
+#define QAT_AES_HW_CONFIG_ENC(alg, mode) \
+ ICP_QAT_HW_CIPHER_CONFIG_BUILD(mode, alg, \
ICP_QAT_HW_CIPHER_NO_CONVERT, \
ICP_QAT_HW_CIPHER_ENCRYPT)
-#define QAT_AES_HW_CONFIG_CBC_DEC(alg) \
- ICP_QAT_HW_CIPHER_CONFIG_BUILD(ICP_QAT_HW_CIPHER_CBC_MODE, alg, \
+#define QAT_AES_HW_CONFIG_DEC(alg, mode) \
+ ICP_QAT_HW_CIPHER_CONFIG_BUILD(mode, alg, \
ICP_QAT_HW_CIPHER_KEY_CONVERT, \
ICP_QAT_HW_CIPHER_DECRYPT)
@@ -271,7 +271,8 @@ static void qat_alg_init_common_hdr(struct icp_qat_fw_comn_req_hdr *header)
static int qat_alg_aead_init_enc_session(struct crypto_aead *aead_tfm,
int alg,
- struct crypto_authenc_keys *keys)
+ struct crypto_authenc_keys *keys,
+ int mode)
{
struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(aead_tfm);
unsigned int digestsize = crypto_aead_authsize(aead_tfm);
@@ -288,7 +289,7 @@ static int qat_alg_aead_init_enc_session(struct crypto_aead *aead_tfm,
struct icp_qat_fw_auth_cd_ctrl_hdr *hash_cd_ctrl = ptr;
/* CD setup */
- cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_CBC_ENC(alg);
+ cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_ENC(alg, mode);
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,
@@ -351,7 +352,8 @@ static int qat_alg_aead_init_enc_session(struct crypto_aead *aead_tfm,
static int qat_alg_aead_init_dec_session(struct crypto_aead *aead_tfm,
int alg,
- struct crypto_authenc_keys *keys)
+ struct crypto_authenc_keys *keys,
+ int mode)
{
struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(aead_tfm);
unsigned int digestsize = crypto_aead_authsize(aead_tfm);
@@ -373,7 +375,7 @@ static int qat_alg_aead_init_dec_session(struct crypto_aead *aead_tfm,
sizeof(struct icp_qat_fw_la_cipher_req_params));
/* CD setup */
- cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_CBC_DEC(alg);
+ cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_DEC(alg, mode);
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,
@@ -464,7 +466,7 @@ static void qat_alg_ablkcipher_init_com(struct qat_alg_ablkcipher_ctx *ctx,
static void qat_alg_ablkcipher_init_enc(struct qat_alg_ablkcipher_ctx *ctx,
int alg, const uint8_t *key,
- unsigned int keylen)
+ unsigned int keylen, int mode)
{
struct icp_qat_hw_cipher_algo_blk *enc_cd = ctx->enc_cd;
struct icp_qat_fw_la_bulk_req *req = &ctx->enc_fw_req;
@@ -472,12 +474,12 @@ static void qat_alg_ablkcipher_init_enc(struct qat_alg_ablkcipher_ctx *ctx,
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);
+ enc_cd->aes.cipher_config.val = QAT_AES_HW_CONFIG_ENC(alg, mode);
}
static void qat_alg_ablkcipher_init_dec(struct qat_alg_ablkcipher_ctx *ctx,
int alg, const uint8_t *key,
- unsigned int keylen)
+ unsigned int keylen, int mode)
{
struct icp_qat_hw_cipher_algo_blk *dec_cd = ctx->dec_cd;
struct icp_qat_fw_la_bulk_req *req = &ctx->dec_fw_req;
@@ -485,29 +487,48 @@ static void qat_alg_ablkcipher_init_dec(struct qat_alg_ablkcipher_ctx *ctx,
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);
+
+ if (mode != ICP_QAT_HW_CIPHER_CTR_MODE)
+ dec_cd->aes.cipher_config.val =
+ QAT_AES_HW_CONFIG_DEC(alg, mode);
+ else
+ dec_cd->aes.cipher_config.val =
+ QAT_AES_HW_CONFIG_ENC(alg, mode);
}
-static int qat_alg_validate_key(int key_len, int *alg)
+static int qat_alg_validate_key(int key_len, int *alg, int mode)
{
- 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;
+ if (mode != ICP_QAT_HW_CIPHER_XTS_MODE) {
+ 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;
+ }
+ } else {
+ switch (key_len) {
+ case AES_KEYSIZE_128 << 1:
+ *alg = ICP_QAT_HW_CIPHER_ALGO_AES128;
+ break;
+ case AES_KEYSIZE_256 << 1:
+ *alg = ICP_QAT_HW_CIPHER_ALGO_AES256;
+ break;
+ default:
+ return -EINVAL;
+ }
}
return 0;
}
-static int qat_alg_aead_init_sessions(struct crypto_aead *tfm,
- const uint8_t *key, unsigned int keylen)
+static int qat_alg_aead_init_sessions(struct crypto_aead *tfm, const u8 *key,
+ unsigned int keylen, int mode)
{
struct crypto_authenc_keys keys;
int alg;
@@ -515,13 +536,13 @@ static int qat_alg_aead_init_sessions(struct crypto_aead *tfm,
if (crypto_authenc_extractkeys(&keys, key, keylen))
goto bad_key;
- if (qat_alg_validate_key(keys.enckeylen, &alg))
+ if (qat_alg_validate_key(keys.enckeylen, &alg, mode))
goto bad_key;
- if (qat_alg_aead_init_enc_session(tfm, alg, &keys))
+ if (qat_alg_aead_init_enc_session(tfm, alg, &keys, mode))
goto error;
- if (qat_alg_aead_init_dec_session(tfm, alg, &keys))
+ if (qat_alg_aead_init_dec_session(tfm, alg, &keys, mode))
goto error;
return 0;
@@ -534,15 +555,16 @@ error:
static int qat_alg_ablkcipher_init_sessions(struct qat_alg_ablkcipher_ctx *ctx,
const uint8_t *key,
- unsigned int keylen)
+ unsigned int keylen,
+ int mode)
{
int alg;
- if (qat_alg_validate_key(keylen, &alg))
+ if (qat_alg_validate_key(keylen, &alg, mode))
goto bad_key;
- qat_alg_ablkcipher_init_enc(ctx, alg, key, keylen);
- qat_alg_ablkcipher_init_dec(ctx, alg, key, keylen);
+ qat_alg_ablkcipher_init_enc(ctx, alg, key, keylen, mode);
+ qat_alg_ablkcipher_init_dec(ctx, alg, key, keylen, mode);
return 0;
bad_key:
crypto_tfm_set_flags(ctx->tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
@@ -586,7 +608,8 @@ static int qat_alg_aead_setkey(struct crypto_aead *tfm, const uint8_t *key,
goto out_free_enc;
}
}
- if (qat_alg_aead_init_sessions(tfm, key, keylen))
+ if (qat_alg_aead_init_sessions(tfm, key, keylen,
+ ICP_QAT_HW_CIPHER_CBC_MODE))
goto out_free_all;
return 0;
@@ -876,8 +899,8 @@ static int qat_alg_aead_enc(struct aead_request *areq)
}
static int qat_alg_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
- const uint8_t *key,
- unsigned int keylen)
+ const u8 *key, unsigned int keylen,
+ int mode)
{
struct qat_alg_ablkcipher_ctx *ctx = crypto_ablkcipher_ctx(tfm);
struct device *dev;
@@ -918,7 +941,7 @@ static int qat_alg_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
}
}
spin_unlock(&ctx->lock);
- if (qat_alg_ablkcipher_init_sessions(ctx, key, keylen))
+ if (qat_alg_ablkcipher_init_sessions(ctx, key, keylen, mode))
goto out_free_all;
return 0;
@@ -936,6 +959,27 @@ out_free_enc:
return -ENOMEM;
}
+static int qat_alg_ablkcipher_cbc_setkey(struct crypto_ablkcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return qat_alg_ablkcipher_setkey(tfm, key, keylen,
+ ICP_QAT_HW_CIPHER_CBC_MODE);
+}
+
+static int qat_alg_ablkcipher_ctr_setkey(struct crypto_ablkcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return qat_alg_ablkcipher_setkey(tfm, key, keylen,
+ ICP_QAT_HW_CIPHER_CTR_MODE);
+}
+
+static int qat_alg_ablkcipher_xts_setkey(struct crypto_ablkcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return qat_alg_ablkcipher_setkey(tfm, key, keylen,
+ ICP_QAT_HW_CIPHER_XTS_MODE);
+}
+
static int qat_alg_ablkcipher_encrypt(struct ablkcipher_request *req)
{
struct crypto_ablkcipher *atfm = crypto_ablkcipher_reqtfm(req);
@@ -1171,7 +1215,51 @@ static struct crypto_alg qat_algs[] = { {
.cra_exit = qat_alg_ablkcipher_exit,
.cra_u = {
.ablkcipher = {
- .setkey = qat_alg_ablkcipher_setkey,
+ .setkey = qat_alg_ablkcipher_cbc_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,
+ },
+ },
+}, {
+ .cra_name = "ctr(aes)",
+ .cra_driver_name = "qat_aes_ctr",
+ .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_ctr_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,
+ },
+ },
+}, {
+ .cra_name = "xts(aes)",
+ .cra_driver_name = "qat_aes_xts",
+ .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_xts_setkey,
.decrypt = qat_alg_ablkcipher_decrypt,
.encrypt = qat_alg_ablkcipher_encrypt,
.min_keysize = AES_MIN_KEY_SIZE,
--
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