Hi Akshay,
On Fri, Mar 15, 2013 at 1:52 AM, Akshay Saraswat akshay.s@samsung.com wrote:
Adding H/W acceleration support to hash which can be used to test SHA 256 hash algorithm.
Signed-off-by: ARUN MANKUZHI arun.m@samsung.com Signed-off-by: Akshay Saraswat akshay.s@samsung.com
Changes since v1: - Added sha256 support to "hash" command instead of new sha256 command.
Changes sice v2: - Added new nodes for SHA1 and SHA256 in struct hash_algo for the case when ACE is enabled. - Added new declaration for function pointer hash_func_ws with different return type.
Changes sice v3: - Changed command names to lower case in algo struct. - Added generic ace_sha config.
Changes sice v4: - Changed function names in struct algo. - Replaced ACE_SHA_TYPE to CHUNSZ in struct algo.
Changes sice v5: - Added file hw_sha.h. - Changed CONFIG_ACE_SHA to CONFIG_SHA_HW_ACCEL. - Renamed function names ace_sha1 and ace_sha256 to hw_sha1 and hw_sha256 respectively.
common/hash.c | 14 ++++++++++++++ include/hw_sha.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+) create mode 100644 include/hw_sha.h
diff --git a/common/hash.c b/common/hash.c index e3a6e43..23b1334 100644 --- a/common/hash.c +++ b/common/hash.c @@ -28,12 +28,26 @@ #include <hash.h> #include <sha1.h> #include <sha256.h> +#include <hw_sha.h>
Put this immediate above hash.h (alpha order)
/*
- These are the hash algorithms we support. Chips which support accelerated
- crypto could perhaps add named version of these algorithms here.
*/ static struct hash_algo hash_algo[] = {
You need to rebase this patch to mainline. Other than these two things it looks good.
+#ifdef CONFIG_SHA_HW_ACCEL
{"sha1",SHA1_SUM_LEN,hw_sha1,CHUNKSZ_SHA1,}, {"sha256",SHA256_SUM_LEN,hw_sha256,CHUNKSZ_SHA256,},+#endif #ifdef CONFIG_SHA1 { "SHA1", diff --git a/include/hw_sha.h b/include/hw_sha.h new file mode 100644 index 0000000..565e5a0 --- /dev/null +++ b/include/hw_sha.h @@ -0,0 +1,50 @@ +/*
- Header file for SHA hardware acceleration
- Copyright (c) 2012 Samsung Electronics
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
+#ifndef __HW_SHA_H +#define __HW_SHA_H
+/**
- Computes hash value of input pbuf using h/w acceleration
- @param in_addr A pointer to the input buffer
- @param bufleni Byte length of input buffer
- @param out_addr A pointer to the output buffer. When complete
32 bytes are copied to pout[0]...pout[31]. Thus, a user
should allocate at least 32 bytes at pOut in advance.
- @param chunk_size chunk size for sha256
- */
+void hw_sha256(const uchar *in_addr, uint buflen,
uchar *out_addr, uint chunk_size);+/**
- Computes hash value of input pbuf using h/w acceleration
- @param in_addr A pointer to the input buffer
- @param bufleni Byte length of input buffer
- @param out_addr A pointer to the output buffer. When complete
32 bytes are copied to pout[0]...pout[31]. Thus, a user
should allocate at least 32 bytes at pOut in advance.
- @param chunk_size chunk_size for sha1
- */
+void hw_sha1(const uchar *in_addr, uint buflen,
uchar *out_addr, uint chunk_size);+#endif
1.8.0
Regards, Simon