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* [PATCH v3 07/17] crypto: talitos - enhanced talitos_desc struct for SEC1
@ 2015-04-17 14:32 Christophe Leroy
  2015-08-30 10:25 ` talitos doesn't build with GCC 4.4.4 (was Re: [PATCH v3 07/17] crypto: talitos - enhanced talitos_desc struct for SEC1) Michael Ellerman
  0 siblings, 1 reply; 5+ messages in thread
From: Christophe Leroy @ 2015-04-17 14:32 UTC (permalink / raw)
  To: Kim Phillips, Herbert Xu, David S Miller
  Cc: linuxppc-dev, linux-kernel, linux-crypto

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>
---
 drivers/crypto/talitos.h | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h
index 61a1405..f078da1 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) */
 };
 
 /**
-- 
2.1.0

^ permalink raw reply related	[flat|nested] 5+ messages in thread
* [PATCH v3 07/17] crypto: talitos - enhanced talitos_desc struct for SEC1
@ 2015-04-17 14:24 Christophe Leroy
  0 siblings, 0 replies; 5+ messages in thread
From: Christophe Leroy @ 2015-04-17 14:24 UTC (permalink / raw)
  To: Kim Phillips, Herbert Xu, David S Miller
  Cc: linuxppc-dev, linux-kernel, linux-crypto

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>
---
 drivers/crypto/talitos.h | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h
index 61a1405..f078da1 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) */
 };
 
 /**
-- 
2.1.0

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2015-08-31  1:46 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2015-04-17 14:32 [PATCH v3 07/17] crypto: talitos - enhanced talitos_desc struct for SEC1 Christophe Leroy
2015-08-30 10:25 ` talitos doesn't build with GCC 4.4.4 (was Re: [PATCH v3 07/17] crypto: talitos - enhanced talitos_desc struct for SEC1) Michael Ellerman
2015-08-30 17:24   ` christophe leroy
2015-08-31  1:46     ` Michael Ellerman
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2015-04-17 14:24 [PATCH v3 07/17] crypto: talitos - enhanced talitos_desc struct for SEC1 Christophe Leroy

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