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authorLEROY Christophe <christophe.leroy@c-s.fr>2015-04-17 16:32:01 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2015-04-21 09:14:40 +0800
commit90490752eb03ddc1015233034ec26816f0ea0de3 (patch)
treeea46852a6636ec07b92e0d52106a02e53978c8a1 /drivers/crypto/talitos.h
parent538caf83374c0b24e2dfe2ca381354f207ca7cde (diff)
downloadlinux-90490752eb03ddc1015233034ec26816f0ea0de3.tar.bz2
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>
Diffstat (limited to 'drivers/crypto/talitos.h')
-rw-r--r--drivers/crypto/talitos.h20
1 files changed, 16 insertions, 4 deletions
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) */
};
/**