[PATCH v2 2/5] crypto: AES CBC multi-buffer data structures

From: Tim Chen
Date: Thu Oct 29 2015 - 18:21:28 EST

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This patch introduces the data structures and prototypes of functions
needed for doing AES CBC encryption using multi-buffer. Included are
the structures of the multi-buffer AES CBC job, job scheduler in C and
data structure defines in x86 assembly code.

Originally-by: Chandramouli Narayanan <mouli_7982@xxxxxxxxx>
Signed-off-by: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
---
arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_ctx.h | 96 +++++++++
arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_mgr.h | 131 ++++++++++++
arch/x86/crypto/aes-cbc-mb/mb_mgr_datastruct.S | 270 +++++++++++++++++++++++++
arch/x86/crypto/aes-cbc-mb/reg_sizes.S | 125 ++++++++++++
4 files changed, 622 insertions(+)
create mode 100644 arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_ctx.h
create mode 100644 arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_mgr.h
create mode 100644 arch/x86/crypto/aes-cbc-mb/mb_mgr_datastruct.S
create mode 100644 arch/x86/crypto/aes-cbc-mb/reg_sizes.S

diff --git a/arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_ctx.h b/arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_ctx.h
new file mode 100644
index 0000000..5493f83
--- /dev/null
+++ b/arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_ctx.h
@@ -0,0 +1,96 @@
+/*
+ * Header file for multi buffer AES CBC algorithm manager
+ * that deals with 8 buffers at a time
+ *
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Contact Information:
+ * James Guilford <james.guilford@xxxxxxxxx>
+ * Sean Gulley <sean.m.gulley@xxxxxxxxx>
+ * Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef __AES_CBC_MB_CTX_H
+#define __AES_CBC_MB_CTX_H
+
+
+#include <linux/types.h>
+
+#include "aes_cbc_mb_mgr.h"
+
+#define CBC_ENCRYPT 0x01
+#define CBC_DECRYPT 0x02
+#define CBC_START 0x04
+#define CBC_DONE 0x08
+
+#define CBC_CTX_STS_IDLE 0x00
+#define CBC_CTX_STS_PROCESSING 0x01
+#define CBC_CTX_STS_LAST 0x02
+#define CBC_CTX_STS_COMPLETE 0x04
+
+enum cbc_ctx_error {
+ CBC_CTX_ERROR_NONE = 0,
+ CBC_CTX_ERROR_INVALID_FLAGS = -1,
+ CBC_CTX_ERROR_ALREADY_PROCESSING = -2,
+ CBC_CTX_ERROR_ALREADY_COMPLETED = -3,
+};
+
+#define cbc_ctx_init(ctx, nbytes, op) \
+ do { \
+ (ctx)->flag = (op) | CBC_START; \
+ (ctx)->nbytes = nbytes; \
+ } while (0)
+
+/* AESNI routines to perform cbc decrypt and key expansion */
+
+asmlinkage void aesni_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, unsigned int len, u8 *iv);
+asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
+ unsigned int key_len);
+
+#endif /* __AES_CBC_MB_CTX_H */
diff --git a/arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_mgr.h b/arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_mgr.h
new file mode 100644
index 0000000..0def82e
--- /dev/null
+++ b/arch/x86/crypto/aes-cbc-mb/aes_cbc_mb_mgr.h
@@ -0,0 +1,131 @@
+/*
+ * Header file for multi buffer AES CBC algorithm manager
+ * that deals with 8 buffers at a time
+ *
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Contact Information:
+ * James Guilford <james.guilford@xxxxxxxxx>
+ * Sean Gulley <sean.m.gulley@xxxxxxxxx>
+ * Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef __AES_CBC_MB_MGR_H
+#define __AES_CBC_MB_MGR_H
+
+
+#include <linux/types.h>
+#include <linux/printk.h>
+#include <crypto/aes.h>
+#include <crypto/b128ops.h>
+
+#define MAX_AES_JOBS 128
+
+enum job_sts {
+ STS_UNKNOWN = 0,
+ STS_BEING_PROCESSED = 1,
+ STS_COMPLETED = 2,
+ STS_INTERNAL_ERROR = 3,
+ STS_ERROR = 4
+};
+
+/* AES CBC multi buffer in order job structure */
+
+struct job_aes_cbc {
+ u8 *plaintext; /* pointer to plaintext */
+ u8 *ciphertext; /* pointer to ciphertext */
+ u128 iv; /* initialization vector */
+ u128 *keys; /* pointer to keys */
+ u32 len; /* length in bytes, must be multiple of 16 */
+ enum job_sts status; /* status enumeration */
+ void *user_data; /* pointer to user data */
+ u32 key_len; /* key length */
+};
+
+struct aes_cbc_args_x8 {
+ u8 *arg_in[8]; /* array of 8 pointers to in text */
+ u8 *arg_out[8]; /* array of 8 pointers to out text */
+ u128 *arg_keys[8]; /* array of 8 pointers to keys */
+ u128 arg_iv[8] __aligned(16); /* array of 8 128-bit IVs */
+};
+
+struct aes_cbc_mb_mgr_inorder_x8 {
+ struct aes_cbc_args_x8 args;
+ u16 lens[8] __aligned(16);
+ u64 unused_lanes; /* each nibble is index (0...7) of unused lanes */
+ /* nibble 8 is set to F as a flag */
+ struct job_aes_cbc *job_in_lane[8];
+ /* In-order components */
+ u32 earliest_job; /* byte offset, -1 if none */
+ u32 next_job; /* byte offset */
+ struct job_aes_cbc jobs[MAX_AES_JOBS];
+};
+
+/* define AES CBC multi buffer manager function proto */
+struct job_aes_cbc *aes_cbc_submit_job_inorder_128x8(
+ struct aes_cbc_mb_mgr_inorder_x8 *state);
+struct job_aes_cbc *aes_cbc_submit_job_inorder_192x8(
+ struct aes_cbc_mb_mgr_inorder_x8 *state);
+struct job_aes_cbc *aes_cbc_submit_job_inorder_256x8(
+ struct aes_cbc_mb_mgr_inorder_x8 *state);
+struct job_aes_cbc *aes_cbc_flush_job_inorder_x8(
+ struct aes_cbc_mb_mgr_inorder_x8 *state);
+struct job_aes_cbc *aes_cbc_get_next_job_inorder_x8(
+ struct aes_cbc_mb_mgr_inorder_x8 *state);
+struct job_aes_cbc *aes_cbc_get_completed_job_inorder_x8(
+ struct aes_cbc_mb_mgr_inorder_x8 *state);
+void aes_cbc_init_mb_mgr_inorder_x8(
+ struct aes_cbc_mb_mgr_inorder_x8 *state);
+void aes_cbc_submit_job_ooo_x8(struct aes_cbc_mb_mgr_inorder_x8 *state,
+ struct job_aes_cbc *job);
+void aes_cbc_flush_job_ooo_x8(struct aes_cbc_mb_mgr_inorder_x8 *state);
+void aes_cbc_flush_job_ooo_128x8(struct aes_cbc_mb_mgr_inorder_x8 *state);
+void aes_cbc_flush_job_ooo_192x8(struct aes_cbc_mb_mgr_inorder_x8 *state);
+void aes_cbc_flush_job_ooo_256x8(struct aes_cbc_mb_mgr_inorder_x8 *state);
+
+#endif /* __AES_CBC_MB_MGR_H */
diff --git a/arch/x86/crypto/aes-cbc-mb/mb_mgr_datastruct.S b/arch/x86/crypto/aes-cbc-mb/mb_mgr_datastruct.S
new file mode 100644
index 0000000..0e72179
--- /dev/null
+++ b/arch/x86/crypto/aes-cbc-mb/mb_mgr_datastruct.S
@@ -0,0 +1,270 @@
+/*
+ * Header file: Data structure: AES CBC multibuffer optimization
+ * (x86_64)
+ *
+ * This is the generic header file defining data stuctures for
+ * AES multi-buffer CBC implementation. This file is to be included
+ * by the AES CBC multibuffer scheduler.
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Contact Information:
+ * James Guilford <james.guilford@xxxxxxxxx>
+ * Sean Gulley <sean.m.gulley@xxxxxxxxx>
+ * Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/* This is the AES CBC BY8 implementation */
+#define NBY 8
+
+#define AES_KEYSIZE_128 16
+#define AES_KEYSIZE_192 24
+#define AES_KEYSIZE_256 32
+
+#ifndef _AES_CBC_MB_MGR_DATASTRUCT_ASM_
+#define _AES_CBC_MB_MGR_DATASTRUCT_ASM_
+
+/* Macros for defining data structures */
+
+/* Usage example */
+
+/*
+ * Alternate "struct-like" syntax:
+ * STRUCT job_aes2
+ * RES_Q .plaintext, 1
+ * RES_Q .ciphertext, 1
+ * RES_DQ .IV, 1
+ * RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN
+ * RES_U .union, size1, align1, \
+ * size2, align2, \
+ * ...
+ * ENDSTRUCT
+ * ; Following only needed if nesting
+ * %assign job_aes2_size _FIELD_OFFSET
+ * %assign job_aes2_align _STRUCT_ALIGN
+ *
+ * RES_* macros take a name, a count and an optional alignment.
+ * The count in terms of the base size of the macro, and the
+ * default alignment is the base size.
+ * The macros are:
+ * Macro Base size
+ * RES_B 1
+ * RES_W 2
+ * RES_D 4
+ * RES_Q 8
+ * RES_DQ 16
+ * RES_Y 32
+ * RES_Z 64
+ *
+ * RES_U defines a union. It's arguments are a name and two or more
+ * pairs of "size, alignment"
+ *
+ * The two assigns are only needed if this structure is being nested
+ * within another. Even if the assigns are not done, one can still use
+ * STRUCT_NAME_size as the size of the structure.
+ *
+ * Note that for nesting, you still need to assign to STRUCT_NAME_size.
+ *
+ * The differences between this and using "struct" directly are that each
+ * type is implicitly aligned to its natural length (although this can be
+ * over-ridden with an explicit third parameter), and that the structure
+ * is padded at the end to its overall alignment.
+ *
+ */
+
+/* START_FIELDS */
+
+.macro START_FIELDS
+_FIELD_OFFSET = 0
+_STRUCT_ALIGN = 0
+.endm
+
+/* FIELD name size align */
+.macro FIELD name, size, align
+
+ _FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1))
+ \name = _FIELD_OFFSET
+ _FIELD_OFFSET = _FIELD_OFFSET + (\size)
+ .if (\align > _STRUCT_ALIGN)
+ _STRUCT_ALIGN = \align
+ .endif
+.endm
+
+/* END_FIELDS */
+
+.macro END_FIELDS
+ _FIELD_OFFSET = \
+ (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1))
+.endm
+
+.macro STRUCT p1
+ START_FIELDS
+ .struct \p1
+.endm
+
+.macro ENDSTRUCT
+ tmp = _FIELD_OFFSET
+ END_FIELDS
+ tmp = (_FIELD_OFFSET - %%tmp)
+ .if (tmp > 0)
+ .lcomm tmp
+.endif
+.endstruc
+.endm
+
+/* RES_int name size align */
+.macro RES_int p1, p2, p3
+ name = \p1
+ size = \p2
+ align = \p3
+
+ _FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1))
+ .align align
+ .lcomm name size
+ _FIELD_OFFSET = _FIELD_OFFSET + (size)
+ .if (align > _STRUCT_ALIGN)
+ _STRUCT_ALIGN = align
+ .endif
+.endm
+
+/* macro RES_B name, size [, align] */
+.macro RES_B _name, _size, _align=1
+ RES_int _name, _size, _align
+.endm
+
+/* macro RES_W name, size [, align] */
+.macro RES_W _name, _size, _align=2
+ RES_int _name, 2*(_size), _align
+.endm
+
+/* macro RES_D name, size [, align] */
+.macro RES_D _name, _size, _align=4
+ RES_int _name, 4*(_size), _align
+.endm
+
+/* macro RES_Q name, size [, align] */
+.macro RES_Q _name, _size, _align=8
+ RES_int _name, 8*(_size), _align
+.endm
+
+/* macro RES_DQ name, size [, align] */
+.macro RES_DQ _name, _size, _align=16
+ RES_int _name, 16*(_size), _align
+.endm
+
+/* macro RES_Y name, size [, align] */
+.macro RES_Y _name, _size, _align=32
+ RES_int _name, 32*(_size), _align
+.endm
+
+/*; macro RES_Z name, size [, align] */
+.macro RES_Z _name, _size, _align=64
+ RES_int _name, 64*(_size), _align
+.endm
+#endif /* _AES_CBC_MB_MGR_DATASTRUCT_ASM_ */
+
+/* Define JOB_AES structure */
+
+START_FIELDS /* JOB_AES */
+/* name size align */
+FIELD _plaintext, 8, 8 /* pointer to plaintext */
+FIELD _ciphertext, 8, 8 /* pointer to ciphertext */
+FIELD _IV, 16, 8 /* IV */
+FIELD _keys, 8, 8 /* pointer to keys */
+FIELD _len, 4, 4 /* length in bytes */
+FIELD _status, 4, 4 /* status enumeration */
+FIELD _user_data, 8, 8 /* pointer to user data */
+FIELD _key_len, 4, 8 /* key length */
+
+END_FIELDS
+
+_JOB_AES_size = _FIELD_OFFSET
+_JOB_AES_align = _STRUCT_ALIGN
+
+START_FIELDS /* AES_ARGS_XX */
+/* name size align */
+FIELD _arg_in, 8*NBY, 8 /* [] of NBY pointers to in text */
+FIELD _arg_out, 8*NBY, 8 /* [] of NBY pointers to out text */
+FIELD _arg_keys, 8*NBY, 8 /* [] of NBY pointers to keys */
+FIELD _arg_IV, 16*NBY, 16 /* [] of NBY 128-bit IV's */
+
+END_FIELDS
+
+_AES_ARGS_SIZE = _FIELD_OFFSET
+_AES_ARGS_ALIGN = _STRUCT_ALIGN
+
+START_FIELDS /* MB_MGR_AES_INORDER_XX */
+/* name size align */
+FIELD _args, _AES_ARGS_SIZE, _AES_ARGS_ALIGN
+FIELD _lens, 16, 16 /* lengths */
+FIELD _unused_lanes, 8, 8
+FIELD _job_in_lane, 8*NBY, 8 /* [] of NBY pointers to jobs */
+
+FIELD _earliest_job, 4, 4 /* -1 if none */
+FIELD _next_job, 4, 4
+FIELD _jobs, _JOB_AES_size, _JOB_AES_align /*> 8, start of array */
+
+END_FIELDS
+
+/* size is not accurate because the arrays are not represented */
+
+_MB_MGR_AES_INORDER_align = _STRUCT_ALIGN
+
+_args_in = _args+_arg_in
+_args_out = _args+_arg_out
+_args_keys = _args+_arg_keys
+_args_IV = _args+_arg_IV
+
+
+#define STS_UNKNOWN 0
+#define STS_BEING_PROCESSED 1
+#define STS_COMPLETED 2
+#define STS_INTERNAL_ERROR 3
+#define STS_ERROR 4
+
+#define MAX_AES_JOBS 128
diff --git a/arch/x86/crypto/aes-cbc-mb/reg_sizes.S b/arch/x86/crypto/aes-cbc-mb/reg_sizes.S
new file mode 100644
index 0000000..0a5c850
--- /dev/null
+++ b/arch/x86/crypto/aes-cbc-mb/reg_sizes.S
@@ -0,0 +1,125 @@
+/*
+ * Header file AES CBC multibuffer SSE optimization (x86_64)
+ *
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Contact Information:
+ * James Guilford <james.guilford@xxxxxxxxx>
+ * Sean Gulley <sean.m.gulley@xxxxxxxxx>
+ * Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+/* define d and w variants for registers */
+
+#define raxd eax
+#define raxw ax
+#define raxb al
+
+#define rbxd ebx
+#define rbxw bx
+#define rbxb bl
+
+#define rcxd ecx
+#define rcxw cx
+#define rcxb cl
+
+#define rdxd edx
+#define rdxw dx
+#define rdxb dl
+
+#define rsid esi
+#define rsiw si
+#define rsib sil
+
+#define rdid edi
+#define rdiw di
+#define rdib dil
+
+#define rbpd ebp
+#define rbpw bp
+#define rbpb bpl
+
+#define ymm0x %xmm0
+#define ymm1x %xmm1
+#define ymm2x %xmm2
+#define ymm3x %xmm3
+#define ymm4x %xmm4
+#define ymm5x %xmm5
+#define ymm6x %xmm6
+#define ymm7x %xmm7
+#define ymm8x %xmm8
+#define ymm9x %xmm9
+#define ymm10x %xmm10
+#define ymm11x %xmm11
+#define ymm12x %xmm12
+#define ymm13x %xmm13
+#define ymm14x %xmm14
+#define ymm15x %xmm15
+
+#define CONCAT(a,b) a##b
+#define DWORD(reg) CONCAT(reg, d)
+#define WORD(reg) CONCAT(reg, w)
+#define BYTE(reg) CONCAT(reg, b)
+
+#define XWORD(reg) CONCAT(reg,x)
+
+/* common macros */
+
+/* Generate a label to go to */
+.macro LABEL prefix, num
+\prefix\num\():
+.endm
+
+/*
+ * cond_jump ins, name, suffix
+ * ins - conditional jump instruction to execute
+ * name,suffix - concatenate to form the label to go to
+ */
+.macro cond_jump ins, name, suffix
+ \ins \name\suffix
+.endm
--
1.7.11.7

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