linux-kernel - [PATCH 3/7] crypto: qce: Add mode for rfc4309

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Message-Id: <20210225182716.1402449-4-thara.gopinath@linaro.org>
Date:   Thu, 25 Feb 2021 13:27:12 -0500
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     herbert@...dor.apana.org.au, davem@...emloft.net,
        bjorn.andersson@...aro.org
Cc:     ebiggers@...gle.com, ardb@...nel.org, sivaprak@...eaurora.org,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/7] crypto: qce: Add mode for rfc4309

rf4309 is the specification that uses aes ccm algorithms with IPsec
security packets. Add a submode to identify rfc4309 ccm(aes) algorithm
in the crypto driver.

Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
---
 drivers/crypto/qce/common.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/qce/common.h b/drivers/crypto/qce/common.h
index 3bc244bcca2d..3ffe719b79e4 100644
--- a/drivers/crypto/qce/common.h
+++ b/drivers/crypto/qce/common.h
@@ -51,9 +51,11 @@
 #define QCE_MODE_CCM			BIT(12)
 #define QCE_MODE_MASK			GENMASK(12, 8)
 
+#define QCE_MODE_CCM_RFC4309		BIT(13)
+
 /* cipher encryption/decryption operations */
-#define QCE_ENCRYPT			BIT(13)
-#define QCE_DECRYPT			BIT(14)
+#define QCE_ENCRYPT			BIT(14)
+#define QCE_DECRYPT			BIT(15)
 
 #define IS_DES(flags)			(flags & QCE_ALG_DES)
 #define IS_3DES(flags)			(flags & QCE_ALG_3DES)
@@ -73,6 +75,7 @@
 #define IS_CTR(mode)			(mode & QCE_MODE_CTR)
 #define IS_XTS(mode)			(mode & QCE_MODE_XTS)
 #define IS_CCM(mode)			(mode & QCE_MODE_CCM)
+#define IS_CCM_RFC4309(mode)		((mode) & QCE_MODE_CCM_RFC4309)
 
 #define IS_ENCRYPT(dir)			(dir & QCE_ENCRYPT)
 #define IS_DECRYPT(dir)			(dir & QCE_DECRYPT)
-- 
2.25.1