From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Fri, 17 Apr 2015 14:32:01 +0000 (+0200)
Subject: crypto: talitos - enhanced talitos_desc struct for SEC1
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=90490752eb03ddc1015233034ec26816f0ea0de3;p=openwrt%2Fstaging%2Fblogic.git

crypto: talitos - enhanced talitos_desc struct for SEC1

This patch enhances the talitos_desc struct with fields for SEC1.
SEC1 has only one header field, and has a 'next_desc' field in
addition.
This mixed descriptor will continue to fit SEC2, and for SEC1
we will recopy hdr value into hdr1 value in talitos_submit()

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h
index 61a14054aa39..f078da1d387a 100644
--- a/drivers/crypto/talitos.h
+++ b/drivers/crypto/talitos.h
@@ -37,9 +37,17 @@
 
 /* descriptor pointer entry */
 struct talitos_ptr {
-	__be16 len;     /* length */
-	u8 j_extent;    /* jump to sg link table and/or extent */
-	u8 eptr;        /* extended address */
+	union {
+		struct {		/* SEC2 format */
+			__be16 len;     /* length */
+			u8 j_extent;    /* jump to sg link table and/or extent*/
+			u8 eptr;        /* extended address */
+		};
+		struct {			/* SEC1 format */
+			__be16 res;
+			__be16 len1;	/* length */
+		};
+	};
 	__be32 ptr;     /* address */
 };
 
@@ -53,8 +61,12 @@ static const struct talitos_ptr zero_entry = {
 /* descriptor */
 struct talitos_desc {
 	__be32 hdr;                     /* header high bits */
-	__be32 hdr_lo;                  /* header low bits */
+	union {
+		__be32 hdr_lo;		/* header low bits */
+		__be32 hdr1;		/* header for SEC1 */
+	};
 	struct talitos_ptr ptr[7];      /* ptr/len pair array */
+	__be32 next_desc;		/* next descriptor (SEC1) */
 };
 
 /**