crypto: vmx - Adding AES routines for VMX module

This patch adds AES routines to VMX module in order to
make use of VMX cryptographic acceleration instructions
on Power 8 CPU.

Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/crypto/vmx/aesp8-ppc.h b/drivers/crypto/vmx/aesp8-ppc.h
new file mode 100644
index 000000000000..e963945a83e1
--- /dev/null
+++ b/drivers/crypto/vmx/aesp8-ppc.h
@@ -0,0 +1,20 @@
+#include <linux/types.h>
+#include <crypto/aes.h>
+
+#define AES_BLOCK_MASK  (~(AES_BLOCK_SIZE-1))
+
+struct aes_key {
+    u8 key[AES_MAX_KEYLENGTH];
+    int rounds;
+};
+
+int aes_p8_set_encrypt_key(const u8 *userKey, const int bits,
+        struct aes_key *key);
+int aes_p8_set_decrypt_key(const u8 *userKey, const int bits,
+        struct aes_key *key);
+void aes_p8_encrypt(const u8 *in, u8 *out, const struct aes_key *key);
+void aes_p8_decrypt(const u8 *in, u8 *out,const struct aes_key *key);
+void aes_p8_cbc_encrypt(const u8 *in, u8 *out, size_t len,
+		const struct aes_key *key, u8 *iv, const int enc);
+void aes_p8_ctr32_encrypt_blocks(const u8 *in, u8 *out,
+        size_t len, const struct aes_key *key, const u8 *iv);