crypto: ccp - Enable support for AES GCM on v5 CCPs
A version 5 device provides the primitive commands
required for AES GCM. This patch adds support for
en/decryption.
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/linux/ccp.h b/include/linux/ccp.h
index fa02617..dbe8aa0 100644
--- a/include/linux/ccp.h
+++ b/include/linux/ccp.h
@@ -123,6 +123,10 @@
CCP_AES_MODE_CFB,
CCP_AES_MODE_CTR,
CCP_AES_MODE_CMAC,
+ CCP_AES_MODE_GHASH,
+ CCP_AES_MODE_GCTR,
+ CCP_AES_MODE_GCM,
+ CCP_AES_MODE_GMAC,
CCP_AES_MODE__LAST,
};
@@ -137,6 +141,9 @@
CCP_AES_ACTION_ENCRYPT,
CCP_AES_ACTION__LAST,
};
+/* Overloaded field */
+#define CCP_AES_GHASHAAD CCP_AES_ACTION_DECRYPT
+#define CCP_AES_GHASHFINAL CCP_AES_ACTION_ENCRYPT
/**
* struct ccp_aes_engine - CCP AES operation
@@ -181,6 +188,8 @@
struct scatterlist *cmac_key; /* K1/K2 cmac key required for
* final cmac cmd */
u32 cmac_key_len; /* In bytes */
+
+ u32 aad_len; /* In bytes */
};
/***** XTS-AES engine *****/