From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailhub1.si.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by lists.ozlabs.org (Postfix) with ESMTP id 804CB1A1855 for ; Sat, 18 Apr 2015 00:32:03 +1000 (AEST) From: Christophe Leroy Subject: [PATCH v3 07/17] crypto: talitos - enhanced talitos_desc struct for SEC1 To: Kim Phillips , Herbert Xu , David S Miller Message-Id: <20150417143201.7C8B41A242C@localhost.localdomain> Date: Fri, 17 Apr 2015 16:32:01 +0200 (CEST) Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 --- 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