crypto: aesni - AVX and AVX2 version of AESNI-GCM encode and decode

We have added AVX and AVX2 routines that optimize AESNI-GCM encode/decode.
These routines are optimized for encrypt and decrypt of large buffers.
In tests we have seen up to 6% speedup for 1K, 11% speedup for 2K and
18% speedup for 8K buffer over the existing SSE version.  These routines
should provide even better speedup for future Intel x86_64 cpus.

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

3 files changed, 2953 insertions, 3 deletions

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index e0fc24db234a..84ee1e14f3b6 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -75,7 +75,7 @@ ifeq ($(avx2_supported),yes)
 	serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o
 endif
 
-aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o fpu.o
+aesni-intel-y := aesni-intel_asm.o aesni-intel_avx.o aesni-intel_glue.o fpu.o
 ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
 sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o
 crc32c-intel-y := crc32c-intel_glue.o
diff --git a/arch/x86/crypto/aesni-intel_avx.S b/arch/x86/crypto/aesni-intel_avx.S
new file mode 100644
index 000000000000..522ab68d1c88
--- /dev/null
+++ b/arch/x86/crypto/aesni-intel_avx.S
@@ -0,0 +1,2811 @@
+########################################################################
+# Copyright (c) 2013, Intel Corporation
+#
+# This software is available to you under a choice of one of two
+# licenses.  You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# 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 the 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 INTEL CORPORATION ""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 INTEL CORPORATION 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.
+########################################################################
+##
+## Authors:
+##	Erdinc Ozturk <erdinc.ozturk@intel.com>
+##	Vinodh Gopal <vinodh.gopal@intel.com>
+##	James Guilford <james.guilford@intel.com>
+##	Tim Chen <tim.c.chen@linux.intel.com>
+##
+## References:
+##       This code was derived and highly optimized from the code described in paper:
+##               Vinodh Gopal et. al. Optimized Galois-Counter-Mode Implementation
+##			on Intel Architecture Processors. August, 2010
+##       The details of the implementation is explained in:
+##               Erdinc Ozturk et. al. Enabling High-Performance Galois-Counter-Mode
+##			on Intel Architecture Processors. October, 2012.
+##
+## Assumptions:
+##
+##
+##
+## iv:
+##       0                   1                   2                   3
+##       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                             Salt  (From the SA)               |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                     Initialization Vector                     |
+##       |         (This is the sequence number from IPSec header)       |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                              0x1                              |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##
+##
+##
+## AAD:
+##       AAD padded to 128 bits with 0
+##       for example, assume AAD is a u32 vector
+##
+##       if AAD is 8 bytes:
+##       AAD[3] = {A0, A1}#
+##       padded AAD in xmm register = {A1 A0 0 0}
+##
+##       0                   1                   2                   3
+##       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                               SPI (A1)                        |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                     32-bit Sequence Number (A0)               |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                              0x0                              |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##
+##                                       AAD Format with 32-bit Sequence Number
+##
+##       if AAD is 12 bytes:
+##       AAD[3] = {A0, A1, A2}#
+##       padded AAD in xmm register = {A2 A1 A0 0}
+##
+##       0                   1                   2                   3
+##       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                               SPI (A2)                        |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                 64-bit Extended Sequence Number {A1,A0}       |
+##       |                                                               |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##       |                              0x0                              |
+##       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##
+##        AAD Format with 64-bit Extended Sequence Number
+##
+##
+## aadLen:
+##       from the definition of the spec, aadLen can only be 8 or 12 bytes.
+##	 The code additionally supports aadLen of length 16 bytes.
+##
+## TLen:
+##       from the definition of the spec, TLen can only be 8, 12 or 16 bytes.
+##
+## poly = x^128 + x^127 + x^126 + x^121 + 1
+## throughout the code, one tab and two tab indentations are used. one tab is
+## for GHASH part, two tabs is for AES part.
+##
+
+#include <linux/linkage.h>
+#include <asm/inst.h>
+
+.data
+.align 16
+
+POLY:            .octa     0xC2000000000000000000000000000001
+POLY2:           .octa     0xC20000000000000000000001C2000000
+TWOONE:          .octa     0x00000001000000000000000000000001
+
+# order of these constants should not change.
+# more specifically, ALL_F should follow SHIFT_MASK, and ZERO should follow ALL_F
+
+SHUF_MASK:       .octa     0x000102030405060708090A0B0C0D0E0F
+SHIFT_MASK:      .octa     0x0f0e0d0c0b0a09080706050403020100
+ALL_F:           .octa     0xffffffffffffffffffffffffffffffff
+ZERO:            .octa     0x00000000000000000000000000000000
+ONE:             .octa     0x00000000000000000000000000000001
+ONEf:            .octa     0x01000000000000000000000000000000
+
+.text
+
+
+##define the fields of the gcm aes context
+#{
+#        u8 expanded_keys[16*11] store expanded keys
+#        u8 shifted_hkey_1[16]   store HashKey <<1 mod poly here
+#        u8 shifted_hkey_2[16]   store HashKey^2 <<1 mod poly here
+#        u8 shifted_hkey_3[16]   store HashKey^3 <<1 mod poly here
+#        u8 shifted_hkey_4[16]   store HashKey^4 <<1 mod poly here
+#        u8 shifted_hkey_5[16]   store HashKey^5 <<1 mod poly here
+#        u8 shifted_hkey_6[16]   store HashKey^6 <<1 mod poly here
+#        u8 shifted_hkey_7[16]   store HashKey^7 <<1 mod poly here
+#        u8 shifted_hkey_8[16]   store HashKey^8 <<1 mod poly here
+#        u8 shifted_hkey_1_k[16] store XOR HashKey <<1 mod poly here (for Karatsuba purposes)
+#        u8 shifted_hkey_2_k[16] store XOR HashKey^2 <<1 mod poly here (for Karatsuba purposes)
+#        u8 shifted_hkey_3_k[16] store XOR HashKey^3 <<1 mod poly here (for Karatsuba purposes)
+#        u8 shifted_hkey_4_k[16] store XOR HashKey^4 <<1 mod poly here (for Karatsuba purposes)
+#        u8 shifted_hkey_5_k[16] store XOR HashKey^5 <<1 mod poly here (for Karatsuba purposes)
+#        u8 shifted_hkey_6_k[16] store XOR HashKey^6 <<1 mod poly here (for Karatsuba purposes)
+#        u8 shifted_hkey_7_k[16] store XOR HashKey^7 <<1 mod poly here (for Karatsuba purposes)
+#        u8 shifted_hkey_8_k[16] store XOR HashKey^8 <<1 mod poly here (for Karatsuba purposes)
+#} gcm_ctx#
+
+HashKey        = 16*11   # store HashKey <<1 mod poly here
+HashKey_2      = 16*12   # store HashKey^2 <<1 mod poly here
+HashKey_3      = 16*13   # store HashKey^3 <<1 mod poly here
+HashKey_4      = 16*14   # store HashKey^4 <<1 mod poly here
+HashKey_5      = 16*15   # store HashKey^5 <<1 mod poly here
+HashKey_6      = 16*16   # store HashKey^6 <<1 mod poly here
+HashKey_7      = 16*17   # store HashKey^7 <<1 mod poly here
+HashKey_8      = 16*18   # store HashKey^8 <<1 mod poly here
+HashKey_k      = 16*19   # store XOR of HashKey <<1 mod poly here (for Karatsuba purposes)
+HashKey_2_k    = 16*20   # store XOR of HashKey^2 <<1 mod poly here (for Karatsuba purposes)
+HashKey_3_k    = 16*21   # store XOR of HashKey^3 <<1 mod poly here (for Karatsuba purposes)
+HashKey_4_k    = 16*22   # store XOR of HashKey^4 <<1 mod poly here (for Karatsuba purposes)
+HashKey_5_k    = 16*23   # store XOR of HashKey^5 <<1 mod poly here (for Karatsuba purposes)
+HashKey_6_k    = 16*24   # store XOR of HashKey^6 <<1 mod poly here (for Karatsuba purposes)
+HashKey_7_k    = 16*25   # store XOR of HashKey^7 <<1 mod poly here (for Karatsuba purposes)
+HashKey_8_k    = 16*26   # store XOR of HashKey^8 <<1 mod poly here (for Karatsuba purposes)
+
+#define arg1 %rdi
+#define arg2 %rsi
+#define arg3 %rdx
+#define arg4 %rcx
+#define arg5 %r8
+#define arg6 %r9
+#define arg7 STACK_OFFSET+8*1(%r14)
+#define arg8 STACK_OFFSET+8*2(%r14)
+#define arg9 STACK_OFFSET+8*3(%r14)
+
+i = 0
+j = 0
+
+out_order = 0
+in_order = 1
+DEC = 0
+ENC = 1
+
+.macro define_reg r n
+reg_\r = %xmm\n
+.endm
+
+.macro setreg
+.altmacro
+define_reg i %i
+define_reg j %j
+.noaltmacro
+.endm
+
+# need to push 4 registers into stack to maintain
+STACK_OFFSET = 8*4
+
+TMP1 =   16*0    # Temporary storage for AAD
+TMP2 =   16*1    # Temporary storage for AES State 2 (State 1 is stored in an XMM register)
+TMP3 =   16*2    # Temporary storage for AES State 3
+TMP4 =   16*3    # Temporary storage for AES State 4
+TMP5 =   16*4    # Temporary storage for AES State 5
+TMP6 =   16*5    # Temporary storage for AES State 6
+TMP7 =   16*6    # Temporary storage for AES State 7
+TMP8 =   16*7    # Temporary storage for AES State 8
+
+VARIABLE_OFFSET = 16*8
+
+################################
+# Utility Macros
+################################
+
+# Encryption of a single block
+.macro ENCRYPT_SINGLE_BLOCK XMM0
+                vpxor    (arg1), \XMM0, \XMM0
+		i = 1
+		setreg
+.rep 9
+                vaesenc  16*i(arg1), \XMM0, \XMM0
+		i = (i+1)
+		setreg
+.endr
+                vaesenclast 16*10(arg1), \XMM0, \XMM0
+.endm
+
+#ifdef CONFIG_AS_AVX
+###############################################################################
+# GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0)
+# Input: A and B (128-bits each, bit-reflected)
+# Output: C = A*B*x mod poly, (i.e. >>1 )
+# To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input
+# GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly.
+###############################################################################
+.macro  GHASH_MUL_AVX GH HK T1 T2 T3 T4 T5
+
+        vpshufd         $0b01001110, \GH, \T2
+        vpshufd         $0b01001110, \HK, \T3
+        vpxor           \GH     , \T2, \T2      # T2 = (a1+a0)
+        vpxor           \HK     , \T3, \T3      # T3 = (b1+b0)
+
+        vpclmulqdq      $0x11, \HK, \GH, \T1    # T1 = a1*b1
+        vpclmulqdq      $0x00, \HK, \GH, \GH    # GH = a0*b0
+        vpclmulqdq      $0x00, \T3, \T2, \T2    # T2 = (a1+a0)*(b1+b0)
+        vpxor           \GH, \T2,\T2
+        vpxor           \T1, \T2,\T2            # T2 = a0*b1+a1*b0
+
+        vpslldq         $8, \T2,\T3             # shift-L T3 2 DWs
+        vpsrldq         $8, \T2,\T2             # shift-R T2 2 DWs
+        vpxor           \T3, \GH, \GH
+        vpxor           \T2, \T1, \T1           # <T1:GH> = GH x HK
+
+        #first phase of the reduction
+        vpslld  $31, \GH, \T2                   # packed right shifting << 31
+        vpslld  $30, \GH, \T3                   # packed right shifting shift << 30
+        vpslld  $25, \GH, \T4                   # packed right shifting shift << 25
+
+        vpxor   \T3, \T2, \T2                   # xor the shifted versions
+        vpxor   \T4, \T2, \T2
+
+        vpsrldq $4, \T2, \T5                    # shift-R T5 1 DW
+
+        vpslldq $12, \T2, \T2                   # shift-L T2 3 DWs
+        vpxor   \T2, \GH, \GH                   # first phase of the reduction complete
+
+        #second phase of the reduction
+
+        vpsrld  $1,\GH, \T2                     # packed left shifting >> 1
+        vpsrld  $2,\GH, \T3                     # packed left shifting >> 2
+        vpsrld  $7,\GH, \T4                     # packed left shifting >> 7
+        vpxor   \T3, \T2, \T2                   # xor the shifted versions
+        vpxor   \T4, \T2, \T2
+
+        vpxor   \T5, \T2, \T2
+        vpxor   \T2, \GH, \GH
+        vpxor   \T1, \GH, \GH                   # the result is in GH
+
+
+.endm
+
+.macro PRECOMPUTE_AVX HK T1 T2 T3 T4 T5 T6
+
+        # Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+        vmovdqa  \HK, \T5
+
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_k(arg1)
+
+        GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2  #  T5 = HashKey^2<<1 mod poly
+        vmovdqa  \T5, HashKey_2(arg1)                    #  [HashKey_2] = HashKey^2<<1 mod poly
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_2_k(arg1)
+
+        GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2  #  T5 = HashKey^3<<1 mod poly
+        vmovdqa  \T5, HashKey_3(arg1)
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_3_k(arg1)
+
+        GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2  #  T5 = HashKey^4<<1 mod poly
+        vmovdqa  \T5, HashKey_4(arg1)
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_4_k(arg1)
+
+        GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2  #  T5 = HashKey^5<<1 mod poly
+        vmovdqa  \T5, HashKey_5(arg1)
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_5_k(arg1)
+
+        GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2  #  T5 = HashKey^6<<1 mod poly
+        vmovdqa  \T5, HashKey_6(arg1)
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_6_k(arg1)
+
+        GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2  #  T5 = HashKey^7<<1 mod poly
+        vmovdqa  \T5, HashKey_7(arg1)
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_7_k(arg1)
+
+        GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2  #  T5 = HashKey^8<<1 mod poly
+        vmovdqa  \T5, HashKey_8(arg1)
+        vpshufd  $0b01001110, \T5, \T1
+        vpxor    \T5, \T1, \T1
+        vmovdqa  \T1, HashKey_8_k(arg1)
+
+.endm
+
+## if a = number of total plaintext bytes
+## b = floor(a/16)
+## num_initial_blocks = b mod 4#
+## encrypt the initial num_initial_blocks blocks and apply ghash on the ciphertext
+## r10, r11, r12, rax are clobbered
+## arg1, arg2, arg3, r14 are used as a pointer only, not modified
+
+.macro INITIAL_BLOCKS_AVX num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC
+	i = (8-\num_initial_blocks)
+	setreg
+
+        mov     arg6, %r10                      # r10 = AAD
+        mov     arg7, %r12                      # r12 = aadLen
+
+
+        mov     %r12, %r11
+
+        vpxor   reg_i, reg_i, reg_i
+_get_AAD_loop\@:
+        vmovd   (%r10), \T1
+        vpslldq $12, \T1, \T1
+        vpsrldq $4, reg_i, reg_i
+        vpxor   \T1, reg_i, reg_i
+
+        add     $4, %r10
+        sub     $4, %r12
+        jg      _get_AAD_loop\@
+
+
+        cmp     $16, %r11
+        je      _get_AAD_loop2_done\@
+        mov     $16, %r12
+
+_get_AAD_loop2\@:
+        vpsrldq $4, reg_i, reg_i
+        sub     $4, %r12
+        cmp     %r11, %r12
+        jg      _get_AAD_loop2\@
+
+_get_AAD_loop2_done\@:
+
+        #byte-reflect the AAD data
+        vpshufb SHUF_MASK(%rip), reg_i, reg_i
+
+	# initialize the data pointer offset as zero
+	xor     %r11, %r11
+
+	# start AES for num_initial_blocks blocks
+	mov     arg5, %rax                     # rax = *Y0
+	vmovdqu (%rax), \CTR                   # CTR = Y0
+	vpshufb SHUF_MASK(%rip), \CTR, \CTR
+
+
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+                vpaddd  ONE(%rip), \CTR, \CTR		# INCR Y0
+                vmovdqa \CTR, reg_i
+                vpshufb SHUF_MASK(%rip), reg_i, reg_i   # perform a 16Byte swap
+	i = (i+1)
+	setreg
+.endr
+
+	vmovdqa  (arg1), \T_key
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+                vpxor   \T_key, reg_i, reg_i
+	i = (i+1)
+	setreg
+.endr
+
+	j = 1
+	setreg
+.rep 9
+	vmovdqa  16*j(arg1), \T_key
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+        vaesenc \T_key, reg_i, reg_i
+	i = (i+1)
+	setreg
+.endr
+
+	j = (j+1)
+	setreg
+.endr
+
+
+	vmovdqa  16*10(arg1), \T_key
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+        vaesenclast      \T_key, reg_i, reg_i
+	i = (i+1)
+	setreg
+.endr
+
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+                vmovdqu (arg3, %r11), \T1
+                vpxor   \T1, reg_i, reg_i
+                vmovdqu reg_i, (arg2 , %r11)           # write back ciphertext for num_initial_blocks blocks
+                add     $16, %r11
+.if  \ENC_DEC == DEC
+                vmovdqa \T1, reg_i
+.endif
+                vpshufb SHUF_MASK(%rip), reg_i, reg_i  # prepare ciphertext for GHASH computations
+	i = (i+1)
+	setreg
+.endr
+
+
+	i = (8-\num_initial_blocks)
+	j = (9-\num_initial_blocks)
+	setreg
+        GHASH_MUL_AVX       reg_i, \T2, \T1, \T3, \T4, \T5, \T6
+
+.rep \num_initial_blocks
+        vpxor    reg_i, reg_j, reg_j
+        GHASH_MUL_AVX       reg_j, \T2, \T1, \T3, \T4, \T5, \T6 # apply GHASH on num_initial_blocks blocks
+	i = (i+1)
+	j = (j+1)
+	setreg
+.endr
+        # XMM8 has the combined result here
+
+        vmovdqa  \XMM8, TMP1(%rsp)
+        vmovdqa  \XMM8, \T3
+
+        cmp     $128, %r13
+        jl      _initial_blocks_done\@                  # no need for precomputed constants
+
+###############################################################################
+# Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM1
+                vpshufb  SHUF_MASK(%rip), \XMM1, \XMM1  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM2
+                vpshufb  SHUF_MASK(%rip), \XMM2, \XMM2  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM3
+                vpshufb  SHUF_MASK(%rip), \XMM3, \XMM3  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM4
+                vpshufb  SHUF_MASK(%rip), \XMM4, \XMM4  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM5
+                vpshufb  SHUF_MASK(%rip), \XMM5, \XMM5  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM6
+                vpshufb  SHUF_MASK(%rip), \XMM6, \XMM6  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM7
+                vpshufb  SHUF_MASK(%rip), \XMM7, \XMM7  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM8
+                vpshufb  SHUF_MASK(%rip), \XMM8, \XMM8  # perform a 16Byte swap
+
+                vmovdqa  (arg1), \T_key
+                vpxor    \T_key, \XMM1, \XMM1
+                vpxor    \T_key, \XMM2, \XMM2
+                vpxor    \T_key, \XMM3, \XMM3
+                vpxor    \T_key, \XMM4, \XMM4
+                vpxor    \T_key, \XMM5, \XMM5
+                vpxor    \T_key, \XMM6, \XMM6
+                vpxor    \T_key, \XMM7, \XMM7
+                vpxor    \T_key, \XMM8, \XMM8
+
+		i = 1
+		setreg
+.rep    9       # do 9 rounds
+                vmovdqa  16*i(arg1), \T_key
+                vaesenc  \T_key, \XMM1, \XMM1
+                vaesenc  \T_key, \XMM2, \XMM2
+                vaesenc  \T_key, \XMM3, \XMM3
+                vaesenc  \T_key, \XMM4, \XMM4
+                vaesenc  \T_key, \XMM5, \XMM5
+                vaesenc  \T_key, \XMM6, \XMM6
+                vaesenc  \T_key, \XMM7, \XMM7
+                vaesenc  \T_key, \XMM8, \XMM8
+		i = (i+1)
+		setreg
+.endr
+
+
+                vmovdqa  16*i(arg1), \T_key
+                vaesenclast  \T_key, \XMM1, \XMM1
+                vaesenclast  \T_key, \XMM2, \XMM2
+                vaesenclast  \T_key, \XMM3, \XMM3
+                vaesenclast  \T_key, \XMM4, \XMM4
+                vaesenclast  \T_key, \XMM5, \XMM5
+                vaesenclast  \T_key, \XMM6, \XMM6
+                vaesenclast  \T_key, \XMM7, \XMM7
+                vaesenclast  \T_key, \XMM8, \XMM8
+
+                vmovdqu  (arg3, %r11), \T1
+                vpxor    \T1, \XMM1, \XMM1
+                vmovdqu  \XMM1, (arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM1
+                .endif
+
+                vmovdqu  16*1(arg3, %r11), \T1
+                vpxor    \T1, \XMM2, \XMM2
+                vmovdqu  \XMM2, 16*1(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM2
+                .endif
+
+                vmovdqu  16*2(arg3, %r11), \T1
+                vpxor    \T1, \XMM3, \XMM3
+                vmovdqu  \XMM3, 16*2(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM3
+                .endif
+
+                vmovdqu  16*3(arg3, %r11), \T1
+                vpxor    \T1, \XMM4, \XMM4
+                vmovdqu  \XMM4, 16*3(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM4
+                .endif
+
+                vmovdqu  16*4(arg3, %r11), \T1
+                vpxor    \T1, \XMM5, \XMM5
+                vmovdqu  \XMM5, 16*4(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM5
+                .endif
+
+                vmovdqu  16*5(arg3, %r11), \T1
+                vpxor    \T1, \XMM6, \XMM6
+                vmovdqu  \XMM6, 16*5(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM6
+                .endif
+
+                vmovdqu  16*6(arg3, %r11), \T1
+                vpxor    \T1, \XMM7, \XMM7
+                vmovdqu  \XMM7, 16*6(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM7
+                .endif
+
+                vmovdqu  16*7(arg3, %r11), \T1
+                vpxor    \T1, \XMM8, \XMM8
+                vmovdqu  \XMM8, 16*7(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM8
+                .endif
+
+                add     $128, %r11
+
+                vpshufb  SHUF_MASK(%rip), \XMM1, \XMM1     # perform a 16Byte swap
+                vpxor    TMP1(%rsp), \XMM1, \XMM1          # combine GHASHed value with the corresponding ciphertext
+                vpshufb  SHUF_MASK(%rip), \XMM2, \XMM2     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM3, \XMM3     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM4, \XMM4     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM5, \XMM5     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM6, \XMM6     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM7, \XMM7     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM8, \XMM8     # perform a 16Byte swap
+
+###############################################################################
+
+_initial_blocks_done\@:
+
+.endm
+
+# encrypt 8 blocks at a time
+# ghash the 8 previously encrypted ciphertext blocks
+# arg1, arg2, arg3 are used as pointers only, not modified
+# r11 is the data offset value
+.macro GHASH_8_ENCRYPT_8_PARALLEL_AVX T1 T2 T3 T4 T5 T6 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T7 loop_idx ENC_DEC
+
+        vmovdqa \XMM1, \T2
+        vmovdqa \XMM2, TMP2(%rsp)
+        vmovdqa \XMM3, TMP3(%rsp)
+        vmovdqa \XMM4, TMP4(%rsp)
+        vmovdqa \XMM5, TMP5(%rsp)
+        vmovdqa \XMM6, TMP6(%rsp)
+        vmovdqa \XMM7, TMP7(%rsp)
+        vmovdqa \XMM8, TMP8(%rsp)
+
+.if \loop_idx == in_order
+                vpaddd  ONE(%rip), \CTR, \XMM1           # INCR CNT
+                vpaddd  ONE(%rip), \XMM1, \XMM2
+                vpaddd  ONE(%rip), \XMM2, \XMM3
+                vpaddd  ONE(%rip), \XMM3, \XMM4
+                vpaddd  ONE(%rip), \XMM4, \XMM5
+                vpaddd  ONE(%rip), \XMM5, \XMM6
+                vpaddd  ONE(%rip), \XMM6, \XMM7
+                vpaddd  ONE(%rip), \XMM7, \XMM8
+                vmovdqa \XMM8, \CTR
+
+                vpshufb SHUF_MASK(%rip), \XMM1, \XMM1    # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM2, \XMM2    # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM3, \XMM3    # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM4, \XMM4    # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM5, \XMM5    # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM6, \XMM6    # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM7, \XMM7    # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM8, \XMM8    # perform a 16Byte swap
+.else
+                vpaddd  ONEf(%rip), \CTR, \XMM1           # INCR CNT
+                vpaddd  ONEf(%rip), \XMM1, \XMM2
+                vpaddd  ONEf(%rip), \XMM2, \XMM3
+                vpaddd  ONEf(%rip), \XMM3, \XMM4
+                vpaddd  ONEf(%rip), \XMM4, \XMM5
+                vpaddd  ONEf(%rip), \XMM5, \XMM6
+                vpaddd  ONEf(%rip), \XMM6, \XMM7
+                vpaddd  ONEf(%rip), \XMM7, \XMM8
+                vmovdqa \XMM8, \CTR
+.endif
+
+
+        #######################################################################
+
+                vmovdqu (arg1), \T1
+                vpxor   \T1, \XMM1, \XMM1
+                vpxor   \T1, \XMM2, \XMM2
+                vpxor   \T1, \XMM3, \XMM3
+                vpxor   \T1, \XMM4, \XMM4
+                vpxor   \T1, \XMM5, \XMM5
+                vpxor   \T1, \XMM6, \XMM6
+                vpxor   \T1, \XMM7, \XMM7
+                vpxor   \T1, \XMM8, \XMM8
+
+        #######################################################################
+
+
+
+
+
+                vmovdqu 16*1(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+                vmovdqu 16*2(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+
+        #######################################################################
+
+        vmovdqa         HashKey_8(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T2, \T4             # T4 = a1*b1
+        vpclmulqdq      $0x00, \T5, \T2, \T7             # T7 = a0*b0
+
+        vpshufd         $0b01001110, \T2, \T6
+        vpxor           \T2, \T6, \T6
+
+        vmovdqa         HashKey_8_k(arg1), \T5
+        vpclmulqdq      $0x00, \T5, \T6, \T6
+
+                vmovdqu 16*3(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP2(%rsp), \T1
+        vmovdqa         HashKey_7(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpshufd         $0b01001110, \T1, \T3
+        vpxor           \T1, \T3, \T3
+        vmovdqa         HashKey_7_k(arg1), \T5
+        vpclmulqdq      $0x10, \T5, \T3, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*4(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        #######################################################################
+
+        vmovdqa         TMP3(%rsp), \T1
+        vmovdqa         HashKey_6(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpshufd         $0b01001110, \T1, \T3
+        vpxor           \T1, \T3, \T3
+        vmovdqa         HashKey_6_k(arg1), \T5
+        vpclmulqdq      $0x10, \T5, \T3, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*5(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP4(%rsp), \T1
+        vmovdqa         HashKey_5(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpshufd         $0b01001110, \T1, \T3
+        vpxor           \T1, \T3, \T3
+        vmovdqa         HashKey_5_k(arg1), \T5
+        vpclmulqdq      $0x10, \T5, \T3, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*6(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+
+        vmovdqa         TMP5(%rsp), \T1
+        vmovdqa         HashKey_4(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpshufd         $0b01001110, \T1, \T3
+        vpxor           \T1, \T3, \T3
+        vmovdqa         HashKey_4_k(arg1), \T5
+        vpclmulqdq      $0x10, \T5, \T3, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*7(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP6(%rsp), \T1
+        vmovdqa         HashKey_3(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpshufd         $0b01001110, \T1, \T3
+        vpxor           \T1, \T3, \T3
+        vmovdqa         HashKey_3_k(arg1), \T5
+        vpclmulqdq      $0x10, \T5, \T3, \T3
+        vpxor           \T3, \T6, \T6
+
+
+                vmovdqu 16*8(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP7(%rsp), \T1
+        vmovdqa         HashKey_2(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpshufd         $0b01001110, \T1, \T3
+        vpxor           \T1, \T3, \T3
+        vmovdqa         HashKey_2_k(arg1), \T5
+        vpclmulqdq      $0x10, \T5, \T3, \T3
+        vpxor           \T3, \T6, \T6
+
+        #######################################################################
+
+                vmovdqu 16*9(arg1), \T5
+                vaesenc \T5, \XMM1, \XMM1
+                vaesenc \T5, \XMM2, \XMM2
+                vaesenc \T5, \XMM3, \XMM3
+                vaesenc \T5, \XMM4, \XMM4
+                vaesenc \T5, \XMM5, \XMM5
+                vaesenc \T5, \XMM6, \XMM6
+                vaesenc \T5, \XMM7, \XMM7
+                vaesenc \T5, \XMM8, \XMM8
+
+        vmovdqa         TMP8(%rsp), \T1
+        vmovdqa         HashKey(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpshufd         $0b01001110, \T1, \T3
+        vpxor           \T1, \T3, \T3
+        vmovdqa         HashKey_k(arg1), \T5
+        vpclmulqdq      $0x10, \T5, \T3, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpxor           \T4, \T6, \T6
+        vpxor           \T7, \T6, \T6
+
+                vmovdqu 16*10(arg1), \T5
+
+	i = 0
+	j = 1
+	setreg
+.rep 8
+		vpxor	16*i(arg3, %r11), \T5, \T2
+                .if \ENC_DEC == ENC
+                vaesenclast     \T2, reg_j, reg_j
+                .else
+                vaesenclast     \T2, reg_j, \T3
+                vmovdqu 16*i(arg3, %r11), reg_j
+                vmovdqu \T3, 16*i(arg2, %r11)
+                .endif
+	i = (i+1)
+	j = (j+1)
+	setreg
+.endr
+	#######################################################################
+
+
+	vpslldq	$8, \T6, \T3				# shift-L T3 2 DWs
+	vpsrldq	$8, \T6, \T6				# shift-R T2 2 DWs
+	vpxor	\T3, \T7, \T7
+	vpxor	\T4, \T6, \T6				# accumulate the results in T6:T7
+
+
+
+	#######################################################################
+	#first phase of the reduction
+	#######################################################################
+        vpslld  $31, \T7, \T2                           # packed right shifting << 31
+        vpslld  $30, \T7, \T3                           # packed right shifting shift << 30
+        vpslld  $25, \T7, \T4                           # packed right shifting shift << 25
+
+        vpxor   \T3, \T2, \T2                           # xor the shifted versions
+        vpxor   \T4, \T2, \T2
+
+        vpsrldq $4, \T2, \T1                            # shift-R T1 1 DW
+
+        vpslldq $12, \T2, \T2                           # shift-L T2 3 DWs
+        vpxor   \T2, \T7, \T7                           # first phase of the reduction complete
+	#######################################################################
+                .if \ENC_DEC == ENC
+		vmovdqu	 \XMM1,	16*0(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM2,	16*1(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM3,	16*2(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM4,	16*3(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM5,	16*4(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM6,	16*5(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM7,	16*6(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM8,	16*7(arg2,%r11)		# Write to the Ciphertext buffer
+                .endif
+
+	#######################################################################
+	#second phase of the reduction
+        vpsrld  $1, \T7, \T2                            # packed left shifting >> 1
+        vpsrld  $2, \T7, \T3                            # packed left shifting >> 2
+        vpsrld  $7, \T7, \T4                            # packed left shifting >> 7
+        vpxor   \T3, \T2, \T2                           # xor the shifted versions
+        vpxor   \T4, \T2, \T2
+
+        vpxor   \T1, \T2, \T2
+        vpxor   \T2, \T7, \T7
+        vpxor   \T7, \T6, \T6                           # the result is in T6
+	#######################################################################
+
+		vpshufb	SHUF_MASK(%rip), \XMM1, \XMM1	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM2, \XMM2	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM3, \XMM3	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM4, \XMM4	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM5, \XMM5	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM6, \XMM6	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM7, \XMM7	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM8, \XMM8	# perform a 16Byte swap
+
+
+	vpxor	\T6, \XMM1, \XMM1
+
+
+
+.endm
+
+
+# GHASH the last 4 ciphertext blocks.
+.macro  GHASH_LAST_8_AVX T1 T2 T3 T4 T5 T6 T7 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8
+
+        ## Karatsuba Method
+
+
+        vpshufd         $0b01001110, \XMM1, \T2
+        vpxor           \XMM1, \T2, \T2
+        vmovdqa         HashKey_8(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM1, \T6
+        vpclmulqdq      $0x00, \T5, \XMM1, \T7
+
+        vmovdqa         HashKey_8_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \XMM1
+
+        ######################
+
+        vpshufd         $0b01001110, \XMM2, \T2
+        vpxor           \XMM2, \T2, \T2
+        vmovdqa         HashKey_7(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM2, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM2, \T4
+        vpxor           \T4, \T7, \T7
+
+        vmovdqa         HashKey_7_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vpshufd         $0b01001110, \XMM3, \T2
+        vpxor           \XMM3, \T2, \T2
+        vmovdqa         HashKey_6(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM3, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM3, \T4
+        vpxor           \T4, \T7, \T7
+
+        vmovdqa         HashKey_6_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vpshufd         $0b01001110, \XMM4, \T2
+        vpxor           \XMM4, \T2, \T2
+        vmovdqa         HashKey_5(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM4, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM4, \T4
+        vpxor           \T4, \T7, \T7
+
+        vmovdqa         HashKey_5_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vpshufd         $0b01001110, \XMM5, \T2
+        vpxor           \XMM5, \T2, \T2
+        vmovdqa         HashKey_4(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM5, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM5, \T4
+        vpxor           \T4, \T7, \T7
+
+        vmovdqa         HashKey_4_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vpshufd         $0b01001110, \XMM6, \T2
+        vpxor           \XMM6, \T2, \T2
+        vmovdqa         HashKey_3(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM6, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM6, \T4
+        vpxor           \T4, \T7, \T7
+
+        vmovdqa         HashKey_3_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vpshufd         $0b01001110, \XMM7, \T2
+        vpxor           \XMM7, \T2, \T2
+        vmovdqa         HashKey_2(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM7, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM7, \T4
+        vpxor           \T4, \T7, \T7
+
+        vmovdqa         HashKey_2_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vpshufd         $0b01001110, \XMM8, \T2
+        vpxor           \XMM8, \T2, \T2
+        vmovdqa         HashKey(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \XMM8, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM8, \T4
+        vpxor           \T4, \T7, \T7
+
+        vmovdqa         HashKey_k(arg1), \T3
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+        vpxor           \T6, \XMM1, \XMM1
+        vpxor           \T7, \XMM1, \T2
+
+
+
+
+        vpslldq $8, \T2, \T4
+        vpsrldq $8, \T2, \T2
+
+        vpxor   \T4, \T7, \T7
+        vpxor   \T2, \T6, \T6   # <T6:T7> holds the result of
+				# the accumulated carry-less multiplications
+
+        #######################################################################
+        #first phase of the reduction
+        vpslld  $31, \T7, \T2   # packed right shifting << 31
+        vpslld  $30, \T7, \T3   # packed right shifting shift << 30
+        vpslld  $25, \T7, \T4   # packed right shifting shift << 25
+
+        vpxor   \T3, \T2, \T2   # xor the shifted versions
+        vpxor   \T4, \T2, \T2
+
+        vpsrldq $4, \T2, \T1    # shift-R T1 1 DW
+
+        vpslldq $12, \T2, \T2   # shift-L T2 3 DWs
+        vpxor   \T2, \T7, \T7   # first phase of the reduction complete
+        #######################################################################
+
+
+        #second phase of the reduction
+        vpsrld  $1, \T7, \T2    # packed left shifting >> 1
+        vpsrld  $2, \T7, \T3    # packed left shifting >> 2
+        vpsrld  $7, \T7, \T4    # packed left shifting >> 7
+        vpxor   \T3, \T2, \T2   # xor the shifted versions
+        vpxor   \T4, \T2, \T2
+
+        vpxor   \T1, \T2, \T2
+        vpxor   \T2, \T7, \T7
+        vpxor   \T7, \T6, \T6   # the result is in T6
+
+.endm
+
+
+# combined for GCM encrypt and decrypt functions
+# clobbering all xmm registers
+# clobbering r10, r11, r12, r13, r14, r15
+.macro  GCM_ENC_DEC_AVX     ENC_DEC
+
+        #the number of pushes must equal STACK_OFFSET
+        push    %r12
+        push    %r13
+        push    %r14
+        push    %r15
+
+        mov     %rsp, %r14
+
+
+
+
+        sub     $VARIABLE_OFFSET, %rsp
+        and     $~63, %rsp                  # align rsp to 64 bytes
+
+
+        vmovdqu  HashKey(arg1), %xmm13      # xmm13 = HashKey
+
+        mov     arg4, %r13                  # save the number of bytes of plaintext/ciphertext
+        and     $-16, %r13                  # r13 = r13 - (r13 mod 16)
+
+        mov     %r13, %r12
+        shr     $4, %r12
+        and     $7, %r12
+        jz      _initial_num_blocks_is_0\@
+
+        cmp     $7, %r12
+        je      _initial_num_blocks_is_7\@
+        cmp     $6, %r12
+        je      _initial_num_blocks_is_6\@
+        cmp     $5, %r12
+        je      _initial_num_blocks_is_5\@
+        cmp     $4, %r12
+        je      _initial_num_blocks_is_4\@
+        cmp     $3, %r12
+        je      _initial_num_blocks_is_3\@
+        cmp     $2, %r12
+        je      _initial_num_blocks_is_2\@
+
+        jmp     _initial_num_blocks_is_1\@
+
+_initial_num_blocks_is_7\@:
+        INITIAL_BLOCKS_AVX  7, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*7, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_6\@:
+        INITIAL_BLOCKS_AVX  6, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*6, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_5\@:
+        INITIAL_BLOCKS_AVX  5, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*5, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_4\@:
+        INITIAL_BLOCKS_AVX  4, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*4, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_3\@:
+        INITIAL_BLOCKS_AVX  3, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*3, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_2\@:
+        INITIAL_BLOCKS_AVX  2, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*2, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_1\@:
+        INITIAL_BLOCKS_AVX  1, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*1, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_0\@:
+        INITIAL_BLOCKS_AVX  0, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+
+
+_initial_blocks_encrypted\@:
+        cmp     $0, %r13
+        je      _zero_cipher_left\@
+
+        sub     $128, %r13
+        je      _eight_cipher_left\@
+
+
+
+
+        vmovd   %xmm9, %r15d
+        and     $255, %r15d
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+
+
+_encrypt_by_8_new\@:
+        cmp     $(255-8), %r15d
+        jg      _encrypt_by_8\@
+
+
+
+        add     $8, %r15b
+        GHASH_8_ENCRYPT_8_PARALLEL_AVX      %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, out_order, \ENC_DEC
+        add     $128, %r11
+        sub     $128, %r13
+        jne     _encrypt_by_8_new\@
+
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        jmp     _eight_cipher_left\@
+
+_encrypt_by_8\@:
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        add     $8, %r15b
+        GHASH_8_ENCRYPT_8_PARALLEL_AVX      %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, in_order, \ENC_DEC
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        add     $128, %r11
+        sub     $128, %r13
+        jne     _encrypt_by_8_new\@
+
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+
+
+
+
+_eight_cipher_left\@:
+        GHASH_LAST_8_AVX    %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8
+
+
+_zero_cipher_left\@:
+        cmp     $16, arg4
+        jl      _only_less_than_16\@
+
+        mov     arg4, %r13
+        and     $15, %r13                            # r13 = (arg4 mod 16)
+
+        je      _multiple_of_16_bytes\@
+
+        # handle the last <16 Byte block seperately
+
+
+        vpaddd   ONE(%rip), %xmm9, %xmm9             # INCR CNT to get Yn
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        ENCRYPT_SINGLE_BLOCK    %xmm9                # E(K, Yn)
+
+        sub     $16, %r11
+        add     %r13, %r11
+        vmovdqu (arg3, %r11), %xmm1                  # receive the last <16 Byte block
+
+        lea     SHIFT_MASK+16(%rip), %r12
+        sub     %r13, %r12                           # adjust the shuffle mask pointer to be
+						     # able to shift 16-r13 bytes (r13 is the
+						     # number of bytes in plaintext mod 16)
+        vmovdqu (%r12), %xmm2                        # get the appropriate shuffle mask
+        vpshufb %xmm2, %xmm1, %xmm1                  # shift right 16-r13 bytes
+        jmp     _final_ghash_mul\@
+
+_only_less_than_16\@:
+        # check for 0 length
+        mov     arg4, %r13
+        and     $15, %r13                            # r13 = (arg4 mod 16)
+
+        je      _multiple_of_16_bytes\@
+
+        # handle the last <16 Byte block seperately
+
+
+        vpaddd  ONE(%rip), %xmm9, %xmm9              # INCR CNT to get Yn
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        ENCRYPT_SINGLE_BLOCK    %xmm9                # E(K, Yn)
+
+
+        lea     SHIFT_MASK+16(%rip), %r12
+        sub     %r13, %r12                           # adjust the shuffle mask pointer to be
+						     # able to shift 16-r13 bytes (r13 is the
+						     # number of bytes in plaintext mod 16)
+
+_get_last_16_byte_loop\@:
+        movb    (arg3, %r11),  %al
+        movb    %al,  TMP1 (%rsp , %r11)
+        add     $1, %r11
+        cmp     %r13,  %r11
+        jne     _get_last_16_byte_loop\@
+
+        vmovdqu  TMP1(%rsp), %xmm1
+
+        sub     $16, %r11
+
+_final_ghash_mul\@:
+        .if  \ENC_DEC ==  DEC
+        vmovdqa %xmm1, %xmm2
+        vpxor   %xmm1, %xmm9, %xmm9                  # Plaintext XOR E(K, Yn)
+        vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1        # get the appropriate mask to
+						     # mask out top 16-r13 bytes of xmm9
+        vpand   %xmm1, %xmm9, %xmm9                  # mask out top 16-r13 bytes of xmm9
+        vpand   %xmm1, %xmm2, %xmm2
+        vpshufb SHUF_MASK(%rip), %xmm2, %xmm2
+        vpxor   %xmm2, %xmm14, %xmm14
+	#GHASH computation for the last <16 Byte block
+        GHASH_MUL_AVX       %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+        sub     %r13, %r11
+        add     $16, %r11
+        .else
+        vpxor   %xmm1, %xmm9, %xmm9                  # Plaintext XOR E(K, Yn)
+        vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1        # get the appropriate mask to
+						     # mask out top 16-r13 bytes of xmm9
+        vpand   %xmm1, %xmm9, %xmm9                  # mask out top 16-r13 bytes of xmm9
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        vpxor   %xmm9, %xmm14, %xmm14
+	#GHASH computation for the last <16 Byte block
+        GHASH_MUL_AVX       %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+        sub     %r13, %r11
+        add     $16, %r11
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9        # shuffle xmm9 back to output as ciphertext
+        .endif
+
+
+        #############################
+        # output r13 Bytes
+        vmovq   %xmm9, %rax
+        cmp     $8, %r13
+        jle     _less_than_8_bytes_left\@
+
+        mov     %rax, (arg2 , %r11)
+        add     $8, %r11
+        vpsrldq $8, %xmm9, %xmm9
+        vmovq   %xmm9, %rax
+        sub     $8, %r13
+
+_less_than_8_bytes_left\@:
+        movb    %al, (arg2 , %r11)
+        add     $1, %r11
+        shr     $8, %rax
+        sub     $1, %r13
+        jne     _less_than_8_bytes_left\@
+        #############################
+
+_multiple_of_16_bytes\@:
+        mov     arg7, %r12                           # r12 = aadLen (number of bytes)
+        shl     $3, %r12                             # convert into number of bits
+        vmovd   %r12d, %xmm15                        # len(A) in xmm15
+
+        shl     $3, arg4                             # len(C) in bits  (*128)
+        vmovq   arg4, %xmm1
+        vpslldq $8, %xmm15, %xmm15                   # xmm15 = len(A)|| 0x0000000000000000
+        vpxor   %xmm1, %xmm15, %xmm15                # xmm15 = len(A)||len(C)
+
+        vpxor   %xmm15, %xmm14, %xmm14
+        GHASH_MUL_AVX       %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6    # final GHASH computation
+        vpshufb SHUF_MASK(%rip), %xmm14, %xmm14      # perform a 16Byte swap
+
+        mov     arg5, %rax                           # rax = *Y0
+        vmovdqu (%rax), %xmm9                        # xmm9 = Y0
+
+        ENCRYPT_SINGLE_BLOCK    %xmm9                # E(K, Y0)
+
+        vpxor   %xmm14, %xmm9, %xmm9
+
+
+
+_return_T\@:
+        mov     arg8, %r10              # r10 = authTag
+        mov     arg9, %r11              # r11 = auth_tag_len
+
+        cmp     $16, %r11
+        je      _T_16\@
+
+        cmp     $12, %r11
+        je      _T_12\@
+
+_T_8\@:
+        vmovq   %xmm9, %rax
+        mov     %rax, (%r10)
+        jmp     _return_T_done\@
+_T_12\@:
+        vmovq   %xmm9, %rax
+        mov     %rax, (%r10)
+        vpsrldq $8, %xmm9, %xmm9
+        vmovd   %xmm9, %eax
+        mov     %eax, 8(%r10)
+        jmp     _return_T_done\@
+
+_T_16\@:
+        vmovdqu %xmm9, (%r10)
+
+_return_T_done\@:
+        mov     %r14, %rsp
+
+        pop     %r15
+        pop     %r14
+        pop     %r13
+        pop     %r12
+.endm
+
+
+#############################################################
+#void   aesni_gcm_precomp_avx_gen2
+#        (gcm_data     *my_ctx_data,
+#        u8     *hash_subkey)# /* H, the Hash sub key input. Data starts on a 16-byte boundary. */
+#############################################################
+ENTRY(aesni_gcm_precomp_avx_gen2)
+        #the number of pushes must equal STACK_OFFSET
+        push    %r12
+        push    %r13
+        push    %r14
+        push    %r15
+
+        mov     %rsp, %r14
+
+
+
+        sub     $VARIABLE_OFFSET, %rsp
+        and     $~63, %rsp                  # align rsp to 64 bytes
+
+        vmovdqu  (arg2), %xmm6              # xmm6 = HashKey
+
+        vpshufb  SHUF_MASK(%rip), %xmm6, %xmm6
+        ###############  PRECOMPUTATION of HashKey<<1 mod poly from the HashKey
+        vmovdqa  %xmm6, %xmm2
+        vpsllq   $1, %xmm6, %xmm6
+        vpsrlq   $63, %xmm2, %xmm2
+        vmovdqa  %xmm2, %xmm1
+        vpslldq  $8, %xmm2, %xmm2
+        vpsrldq  $8, %xmm1, %xmm1
+        vpor     %xmm2, %xmm6, %xmm6
+        #reduction
+        vpshufd  $0b00100100, %xmm1, %xmm2
+        vpcmpeqd TWOONE(%rip), %xmm2, %xmm2
+        vpand    POLY(%rip), %xmm2, %xmm2
+        vpxor    %xmm2, %xmm6, %xmm6        # xmm6 holds the HashKey<<1 mod poly
+        #######################################################################
+        vmovdqa  %xmm6, HashKey(arg1)       # store HashKey<<1 mod poly
+
+
+        PRECOMPUTE_AVX  %xmm6, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5
+
+        mov     %r14, %rsp
+
+        pop     %r15
+        pop     %r14
+        pop     %r13
+        pop     %r12
+        ret
+ENDPROC(aesni_gcm_precomp_avx_gen2)
+
+###############################################################################
+#void   aesni_gcm_enc_avx_gen2(
+#        gcm_data        *my_ctx_data,     /* aligned to 16 Bytes */
+#        u8      *out, /* Ciphertext output. Encrypt in-place is allowed.  */
+#        const   u8 *in, /* Plaintext input */
+#        u64     plaintext_len, /* Length of data in Bytes for encryption. */
+#        u8      *iv, /* Pre-counter block j0: 4 byte salt
+#			(from Security Association) concatenated with 8 byte
+#			Initialisation Vector (from IPSec ESP Payload)
+#			concatenated with 0x00000001. 16-byte aligned pointer. */
+#        const   u8 *aad, /* Additional Authentication Data (AAD)*/
+#        u64     aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
+#        u8      *auth_tag, /* Authenticated Tag output. */
+#        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
+#				Valid values are 16 (most likely), 12 or 8. */
+###############################################################################
+ENTRY(aesni_gcm_enc_avx_gen2)
+        GCM_ENC_DEC_AVX     ENC
+	ret
+ENDPROC(aesni_gcm_enc_avx_gen2)
+
+###############################################################################
+#void   aesni_gcm_dec_avx_gen2(
+#        gcm_data        *my_ctx_data,     /* aligned to 16 Bytes */
+#        u8      *out, /* Plaintext output. Decrypt in-place is allowed.  */
+#        const   u8 *in, /* Ciphertext input */
+#        u64     plaintext_len, /* Length of data in Bytes for encryption. */
+#        u8      *iv, /* Pre-counter block j0: 4 byte salt
+#			(from Security Association) concatenated with 8 byte
+#			Initialisation Vector (from IPSec ESP Payload)
+#			concatenated with 0x00000001. 16-byte aligned pointer. */
+#        const   u8 *aad, /* Additional Authentication Data (AAD)*/
+#        u64     aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
+#        u8      *auth_tag, /* Authenticated Tag output. */
+#        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
+#				Valid values are 16 (most likely), 12 or 8. */
+###############################################################################
+ENTRY(aesni_gcm_dec_avx_gen2)
+        GCM_ENC_DEC_AVX     DEC
+	ret
+ENDPROC(aesni_gcm_dec_avx_gen2)
+#endif /* CONFIG_AS_AVX */
+
+#ifdef CONFIG_AS_AVX2
+###############################################################################
+# GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0)
+# Input: A and B (128-bits each, bit-reflected)
+# Output: C = A*B*x mod poly, (i.e. >>1 )
+# To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input
+# GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly.
+###############################################################################
+.macro  GHASH_MUL_AVX2 GH HK T1 T2 T3 T4 T5
+
+        vpclmulqdq      $0x11,\HK,\GH,\T1      # T1 = a1*b1
+        vpclmulqdq      $0x00,\HK,\GH,\T2      # T2 = a0*b0
+        vpclmulqdq      $0x01,\HK,\GH,\T3      # T3 = a1*b0
+        vpclmulqdq      $0x10,\HK,\GH,\GH      # GH = a0*b1
+        vpxor           \T3, \GH, \GH
+
+
+        vpsrldq         $8 , \GH, \T3          # shift-R GH 2 DWs
+        vpslldq         $8 , \GH, \GH          # shift-L GH 2 DWs
+
+        vpxor           \T3, \T1, \T1
+        vpxor           \T2, \GH, \GH
+
+        #######################################################################
+        #first phase of the reduction
+        vmovdqa         POLY2(%rip), \T3
+
+        vpclmulqdq      $0x01, \GH, \T3, \T2
+        vpslldq         $8, \T2, \T2           # shift-L T2 2 DWs
+
+        vpxor           \T2, \GH, \GH          # first phase of the reduction complete
+        #######################################################################
+        #second phase of the reduction
+        vpclmulqdq      $0x00, \GH, \T3, \T2
+        vpsrldq         $4, \T2, \T2           # shift-R T2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R)
+
+        vpclmulqdq      $0x10, \GH, \T3, \GH
+        vpslldq         $4, \GH, \GH           # shift-L GH 1 DW (Shift-L 1-DW to obtain result with no shifts)
+
+        vpxor           \T2, \GH, \GH          # second phase of the reduction complete
+        #######################################################################
+        vpxor           \T1, \GH, \GH          # the result is in GH
+
+
+.endm
+
+.macro PRECOMPUTE_AVX2 HK T1 T2 T3 T4 T5 T6
+
+        # Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+        vmovdqa  \HK, \T5
+        GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2    #  T5 = HashKey^2<<1 mod poly
+        vmovdqa  \T5, HashKey_2(arg1)                       #  [HashKey_2] = HashKey^2<<1 mod poly
+
+        GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2    #  T5 = HashKey^3<<1 mod poly
+        vmovdqa  \T5, HashKey_3(arg1)
+
+        GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2    #  T5 = HashKey^4<<1 mod poly
+        vmovdqa  \T5, HashKey_4(arg1)
+
+        GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2    #  T5 = HashKey^5<<1 mod poly
+        vmovdqa  \T5, HashKey_5(arg1)
+
+        GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2    #  T5 = HashKey^6<<1 mod poly
+        vmovdqa  \T5, HashKey_6(arg1)
+
+        GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2    #  T5 = HashKey^7<<1 mod poly
+        vmovdqa  \T5, HashKey_7(arg1)
+
+        GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2    #  T5 = HashKey^8<<1 mod poly
+        vmovdqa  \T5, HashKey_8(arg1)
+
+.endm
+
+
+## if a = number of total plaintext bytes
+## b = floor(a/16)
+## num_initial_blocks = b mod 4#
+## encrypt the initial num_initial_blocks blocks and apply ghash on the ciphertext
+## r10, r11, r12, rax are clobbered
+## arg1, arg2, arg3, r14 are used as a pointer only, not modified
+
+.macro INITIAL_BLOCKS_AVX2 num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC VER
+	i = (8-\num_initial_blocks)
+	setreg
+
+        mov     arg6, %r10                       # r10 = AAD
+        mov     arg7, %r12                       # r12 = aadLen
+
+
+        mov     %r12, %r11
+
+        vpxor   reg_i, reg_i, reg_i
+_get_AAD_loop\@:
+        vmovd   (%r10), \T1
+        vpslldq $12, \T1, \T1
+        vpsrldq $4, reg_i, reg_i
+        vpxor   \T1, reg_i, reg_i
+
+        add     $4, %r10
+        sub     $4, %r12
+        jg      _get_AAD_loop\@
+
+
+        cmp     $16, %r11
+        je      _get_AAD_loop2_done\@
+        mov     $16, %r12
+
+_get_AAD_loop2\@:
+        vpsrldq $4, reg_i, reg_i
+        sub     $4, %r12
+        cmp     %r11, %r12
+        jg      _get_AAD_loop2\@
+
+_get_AAD_loop2_done\@:
+
+        #byte-reflect the AAD data
+        vpshufb SHUF_MASK(%rip), reg_i, reg_i
+
+	# initialize the data pointer offset as zero
+	xor     %r11, %r11
+
+	# start AES for num_initial_blocks blocks
+	mov     arg5, %rax                     # rax = *Y0
+	vmovdqu (%rax), \CTR                   # CTR = Y0
+	vpshufb SHUF_MASK(%rip), \CTR, \CTR
+
+
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+                vpaddd  ONE(%rip), \CTR, \CTR   # INCR Y0
+                vmovdqa \CTR, reg_i
+                vpshufb SHUF_MASK(%rip), reg_i, reg_i     # perform a 16Byte swap
+	i = (i+1)
+	setreg
+.endr
+
+	vmovdqa  (arg1), \T_key
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+                vpxor   \T_key, reg_i, reg_i
+	i = (i+1)
+	setreg
+.endr
+
+	j = 1
+	setreg
+.rep 9
+	vmovdqa  16*j(arg1), \T_key
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+        vaesenc \T_key, reg_i, reg_i
+	i = (i+1)
+	setreg
+.endr
+
+	j = (j+1)
+	setreg
+.endr
+
+
+	vmovdqa  16*10(arg1), \T_key
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+        vaesenclast      \T_key, reg_i, reg_i
+	i = (i+1)
+	setreg
+.endr
+
+	i = (9-\num_initial_blocks)
+	setreg
+.rep \num_initial_blocks
+                vmovdqu (arg3, %r11), \T1
+                vpxor   \T1, reg_i, reg_i
+                vmovdqu reg_i, (arg2 , %r11)           # write back ciphertext for
+						       # num_initial_blocks blocks
+                add     $16, %r11
+.if  \ENC_DEC == DEC
+                vmovdqa \T1, reg_i
+.endif
+                vpshufb SHUF_MASK(%rip), reg_i, reg_i  # prepare ciphertext for GHASH computations
+	i = (i+1)
+	setreg
+.endr
+
+
+	i = (8-\num_initial_blocks)
+	j = (9-\num_initial_blocks)
+	setreg
+        GHASH_MUL_AVX2       reg_i, \T2, \T1, \T3, \T4, \T5, \T6
+
+.rep \num_initial_blocks
+        vpxor    reg_i, reg_j, reg_j
+        GHASH_MUL_AVX2       reg_j, \T2, \T1, \T3, \T4, \T5, \T6  # apply GHASH on num_initial_blocks blocks
+	i = (i+1)
+	j = (j+1)
+	setreg
+.endr
+        # XMM8 has the combined result here
+
+        vmovdqa  \XMM8, TMP1(%rsp)
+        vmovdqa  \XMM8, \T3
+
+        cmp     $128, %r13
+        jl      _initial_blocks_done\@                  # no need for precomputed constants
+
+###############################################################################
+# Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM1
+                vpshufb  SHUF_MASK(%rip), \XMM1, \XMM1  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM2
+                vpshufb  SHUF_MASK(%rip), \XMM2, \XMM2  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM3
+                vpshufb  SHUF_MASK(%rip), \XMM3, \XMM3  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM4
+                vpshufb  SHUF_MASK(%rip), \XMM4, \XMM4  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM5
+                vpshufb  SHUF_MASK(%rip), \XMM5, \XMM5  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM6
+                vpshufb  SHUF_MASK(%rip), \XMM6, \XMM6  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM7
+                vpshufb  SHUF_MASK(%rip), \XMM7, \XMM7  # perform a 16Byte swap
+
+                vpaddd   ONE(%rip), \CTR, \CTR          # INCR Y0
+                vmovdqa  \CTR, \XMM8
+                vpshufb  SHUF_MASK(%rip), \XMM8, \XMM8  # perform a 16Byte swap
+
+                vmovdqa  (arg1), \T_key
+                vpxor    \T_key, \XMM1, \XMM1
+                vpxor    \T_key, \XMM2, \XMM2
+                vpxor    \T_key, \XMM3, \XMM3
+                vpxor    \T_key, \XMM4, \XMM4
+                vpxor    \T_key, \XMM5, \XMM5
+                vpxor    \T_key, \XMM6, \XMM6
+                vpxor    \T_key, \XMM7, \XMM7
+                vpxor    \T_key, \XMM8, \XMM8
+
+		i = 1
+		setreg
+.rep    9       # do 9 rounds
+                vmovdqa  16*i(arg1), \T_key
+                vaesenc  \T_key, \XMM1, \XMM1
+                vaesenc  \T_key, \XMM2, \XMM2
+                vaesenc  \T_key, \XMM3, \XMM3
+                vaesenc  \T_key, \XMM4, \XMM4
+                vaesenc  \T_key, \XMM5, \XMM5
+                vaesenc  \T_key, \XMM6, \XMM6
+                vaesenc  \T_key, \XMM7, \XMM7
+                vaesenc  \T_key, \XMM8, \XMM8
+		i = (i+1)
+		setreg
+.endr
+
+
+                vmovdqa  16*i(arg1), \T_key
+                vaesenclast  \T_key, \XMM1, \XMM1
+                vaesenclast  \T_key, \XMM2, \XMM2
+                vaesenclast  \T_key, \XMM3, \XMM3
+                vaesenclast  \T_key, \XMM4, \XMM4
+                vaesenclast  \T_key, \XMM5, \XMM5
+                vaesenclast  \T_key, \XMM6, \XMM6
+                vaesenclast  \T_key, \XMM7, \XMM7
+                vaesenclast  \T_key, \XMM8, \XMM8
+
+                vmovdqu  (arg3, %r11), \T1
+                vpxor    \T1, \XMM1, \XMM1
+                vmovdqu  \XMM1, (arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM1
+                .endif
+
+                vmovdqu  16*1(arg3, %r11), \T1
+                vpxor    \T1, \XMM2, \XMM2
+                vmovdqu  \XMM2, 16*1(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM2
+                .endif
+
+                vmovdqu  16*2(arg3, %r11), \T1
+                vpxor    \T1, \XMM3, \XMM3
+                vmovdqu  \XMM3, 16*2(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM3
+                .endif
+
+                vmovdqu  16*3(arg3, %r11), \T1
+                vpxor    \T1, \XMM4, \XMM4
+                vmovdqu  \XMM4, 16*3(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM4
+                .endif
+
+                vmovdqu  16*4(arg3, %r11), \T1
+                vpxor    \T1, \XMM5, \XMM5
+                vmovdqu  \XMM5, 16*4(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM5
+                .endif
+
+                vmovdqu  16*5(arg3, %r11), \T1
+                vpxor    \T1, \XMM6, \XMM6
+                vmovdqu  \XMM6, 16*5(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM6
+                .endif
+
+                vmovdqu  16*6(arg3, %r11), \T1
+                vpxor    \T1, \XMM7, \XMM7
+                vmovdqu  \XMM7, 16*6(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM7
+                .endif
+
+                vmovdqu  16*7(arg3, %r11), \T1
+                vpxor    \T1, \XMM8, \XMM8
+                vmovdqu  \XMM8, 16*7(arg2 , %r11)
+                .if   \ENC_DEC == DEC
+                vmovdqa  \T1, \XMM8
+                .endif
+
+                add     $128, %r11
+
+                vpshufb  SHUF_MASK(%rip), \XMM1, \XMM1     # perform a 16Byte swap
+                vpxor    TMP1(%rsp), \XMM1, \XMM1          # combine GHASHed value with
+							   # the corresponding ciphertext
+                vpshufb  SHUF_MASK(%rip), \XMM2, \XMM2     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM3, \XMM3     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM4, \XMM4     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM5, \XMM5     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM6, \XMM6     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM7, \XMM7     # perform a 16Byte swap
+                vpshufb  SHUF_MASK(%rip), \XMM8, \XMM8     # perform a 16Byte swap
+
+###############################################################################
+
+_initial_blocks_done\@:
+
+
+.endm
+
+
+
+# encrypt 8 blocks at a time
+# ghash the 8 previously encrypted ciphertext blocks
+# arg1, arg2, arg3 are used as pointers only, not modified
+# r11 is the data offset value
+.macro GHASH_8_ENCRYPT_8_PARALLEL_AVX2 T1 T2 T3 T4 T5 T6 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T7 loop_idx ENC_DEC
+
+        vmovdqa \XMM1, \T2
+        vmovdqa \XMM2, TMP2(%rsp)
+        vmovdqa \XMM3, TMP3(%rsp)
+        vmovdqa \XMM4, TMP4(%rsp)
+        vmovdqa \XMM5, TMP5(%rsp)
+        vmovdqa \XMM6, TMP6(%rsp)
+        vmovdqa \XMM7, TMP7(%rsp)
+        vmovdqa \XMM8, TMP8(%rsp)
+
+.if \loop_idx == in_order
+                vpaddd  ONE(%rip), \CTR, \XMM1            # INCR CNT
+                vpaddd  ONE(%rip), \XMM1, \XMM2
+                vpaddd  ONE(%rip), \XMM2, \XMM3
+                vpaddd  ONE(%rip), \XMM3, \XMM4
+                vpaddd  ONE(%rip), \XMM4, \XMM5
+                vpaddd  ONE(%rip), \XMM5, \XMM6
+                vpaddd  ONE(%rip), \XMM6, \XMM7
+                vpaddd  ONE(%rip), \XMM7, \XMM8
+                vmovdqa \XMM8, \CTR
+
+                vpshufb SHUF_MASK(%rip), \XMM1, \XMM1     # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM2, \XMM2     # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM3, \XMM3     # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM4, \XMM4     # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM5, \XMM5     # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM6, \XMM6     # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM7, \XMM7     # perform a 16Byte swap
+                vpshufb SHUF_MASK(%rip), \XMM8, \XMM8     # perform a 16Byte swap
+.else
+                vpaddd  ONEf(%rip), \CTR, \XMM1            # INCR CNT
+                vpaddd  ONEf(%rip), \XMM1, \XMM2
+                vpaddd  ONEf(%rip), \XMM2, \XMM3
+                vpaddd  ONEf(%rip), \XMM3, \XMM4
+                vpaddd  ONEf(%rip), \XMM4, \XMM5
+                vpaddd  ONEf(%rip), \XMM5, \XMM6
+                vpaddd  ONEf(%rip), \XMM6, \XMM7
+                vpaddd  ONEf(%rip), \XMM7, \XMM8
+                vmovdqa \XMM8, \CTR
+.endif
+
+
+        #######################################################################
+
+                vmovdqu (arg1), \T1
+                vpxor   \T1, \XMM1, \XMM1
+                vpxor   \T1, \XMM2, \XMM2
+                vpxor   \T1, \XMM3, \XMM3
+                vpxor   \T1, \XMM4, \XMM4
+                vpxor   \T1, \XMM5, \XMM5
+                vpxor   \T1, \XMM6, \XMM6
+                vpxor   \T1, \XMM7, \XMM7
+                vpxor   \T1, \XMM8, \XMM8
+
+        #######################################################################
+
+
+
+
+
+                vmovdqu 16*1(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+                vmovdqu 16*2(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+
+        #######################################################################
+
+        vmovdqa         HashKey_8(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T2, \T4              # T4 = a1*b1
+        vpclmulqdq      $0x00, \T5, \T2, \T7              # T7 = a0*b0
+        vpclmulqdq      $0x01, \T5, \T2, \T6              # T6 = a1*b0
+        vpclmulqdq      $0x10, \T5, \T2, \T5              # T5 = a0*b1
+        vpxor           \T5, \T6, \T6
+
+                vmovdqu 16*3(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP2(%rsp), \T1
+        vmovdqa         HashKey_7(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpclmulqdq      $0x01, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x10, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*4(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        #######################################################################
+
+        vmovdqa         TMP3(%rsp), \T1
+        vmovdqa         HashKey_6(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpclmulqdq      $0x01, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x10, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*5(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP4(%rsp), \T1
+        vmovdqa         HashKey_5(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpclmulqdq      $0x01, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x10, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*6(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+
+        vmovdqa         TMP5(%rsp), \T1
+        vmovdqa         HashKey_4(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpclmulqdq      $0x01, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x10, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*7(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP6(%rsp), \T1
+        vmovdqa         HashKey_3(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpclmulqdq      $0x01, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x10, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+                vmovdqu 16*8(arg1), \T1
+                vaesenc \T1, \XMM1, \XMM1
+                vaesenc \T1, \XMM2, \XMM2
+                vaesenc \T1, \XMM3, \XMM3
+                vaesenc \T1, \XMM4, \XMM4
+                vaesenc \T1, \XMM5, \XMM5
+                vaesenc \T1, \XMM6, \XMM6
+                vaesenc \T1, \XMM7, \XMM7
+                vaesenc \T1, \XMM8, \XMM8
+
+        vmovdqa         TMP7(%rsp), \T1
+        vmovdqa         HashKey_2(arg1), \T5
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T4
+
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpclmulqdq      $0x01, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x10, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+
+        #######################################################################
+
+                vmovdqu 16*9(arg1), \T5
+                vaesenc \T5, \XMM1, \XMM1
+                vaesenc \T5, \XMM2, \XMM2
+                vaesenc \T5, \XMM3, \XMM3
+                vaesenc \T5, \XMM4, \XMM4
+                vaesenc \T5, \XMM5, \XMM5
+                vaesenc \T5, \XMM6, \XMM6
+                vaesenc \T5, \XMM7, \XMM7
+                vaesenc \T5, \XMM8, \XMM8
+
+        vmovdqa         TMP8(%rsp), \T1
+        vmovdqa         HashKey(arg1), \T5
+
+        vpclmulqdq      $0x00, \T5, \T1, \T3
+        vpxor           \T3, \T7, \T7
+
+        vpclmulqdq      $0x01, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x10, \T5, \T1, \T3
+        vpxor           \T3, \T6, \T6
+
+        vpclmulqdq      $0x11, \T5, \T1, \T3
+        vpxor           \T3, \T4, \T1
+
+
+                vmovdqu 16*10(arg1), \T5
+
+	i = 0
+	j = 1
+	setreg
+.rep 8
+		vpxor	16*i(arg3, %r11), \T5, \T2
+                .if \ENC_DEC == ENC
+                vaesenclast     \T2, reg_j, reg_j
+                .else
+                vaesenclast     \T2, reg_j, \T3
+                vmovdqu 16*i(arg3, %r11), reg_j
+                vmovdqu \T3, 16*i(arg2, %r11)
+                .endif
+	i = (i+1)
+	j = (j+1)
+	setreg
+.endr
+	#######################################################################
+
+
+	vpslldq	$8, \T6, \T3				# shift-L T3 2 DWs
+	vpsrldq	$8, \T6, \T6				# shift-R T2 2 DWs
+	vpxor	\T3, \T7, \T7
+	vpxor	\T6, \T1, \T1				# accumulate the results in T1:T7
+
+
+
+	#######################################################################
+	#first phase of the reduction
+	vmovdqa         POLY2(%rip), \T3
+
+	vpclmulqdq	$0x01, \T7, \T3, \T2
+	vpslldq		$8, \T2, \T2			# shift-L xmm2 2 DWs
+
+	vpxor		\T2, \T7, \T7			# first phase of the reduction complete
+	#######################################################################
+                .if \ENC_DEC == ENC
+		vmovdqu	 \XMM1,	16*0(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM2,	16*1(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM3,	16*2(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM4,	16*3(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM5,	16*4(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM6,	16*5(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM7,	16*6(arg2,%r11)		# Write to the Ciphertext buffer
+		vmovdqu	 \XMM8,	16*7(arg2,%r11)		# Write to the Ciphertext buffer
+                .endif
+
+	#######################################################################
+	#second phase of the reduction
+	vpclmulqdq	$0x00, \T7, \T3, \T2
+	vpsrldq		$4, \T2, \T2			# shift-R xmm2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R)
+
+	vpclmulqdq	$0x10, \T7, \T3, \T4
+	vpslldq		$4, \T4, \T4			# shift-L xmm0 1 DW (Shift-L 1-DW to obtain result with no shifts)
+
+	vpxor		\T2, \T4, \T4			# second phase of the reduction complete
+	#######################################################################
+	vpxor		\T4, \T1, \T1			# the result is in T1
+
+		vpshufb	SHUF_MASK(%rip), \XMM1, \XMM1	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM2, \XMM2	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM3, \XMM3	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM4, \XMM4	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM5, \XMM5	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM6, \XMM6	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM7, \XMM7	# perform a 16Byte swap
+		vpshufb	SHUF_MASK(%rip), \XMM8, \XMM8	# perform a 16Byte swap
+
+
+	vpxor	\T1, \XMM1, \XMM1
+
+
+
+.endm
+
+
+# GHASH the last 4 ciphertext blocks.
+.macro  GHASH_LAST_8_AVX2 T1 T2 T3 T4 T5 T6 T7 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8
+
+        ## Karatsuba Method
+
+        vmovdqa         HashKey_8(arg1), \T5
+
+        vpshufd         $0b01001110, \XMM1, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM1, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM1, \T6
+        vpclmulqdq      $0x00, \T5, \XMM1, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \XMM1
+
+        ######################
+
+        vmovdqa         HashKey_7(arg1), \T5
+        vpshufd         $0b01001110, \XMM2, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM2, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM2, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM2, \T4
+        vpxor           \T4, \T7, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vmovdqa         HashKey_6(arg1), \T5
+        vpshufd         $0b01001110, \XMM3, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM3, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM3, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM3, \T4
+        vpxor           \T4, \T7, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vmovdqa         HashKey_5(arg1), \T5
+        vpshufd         $0b01001110, \XMM4, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM4, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM4, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM4, \T4
+        vpxor           \T4, \T7, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vmovdqa         HashKey_4(arg1), \T5
+        vpshufd         $0b01001110, \XMM5, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM5, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM5, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM5, \T4
+        vpxor           \T4, \T7, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vmovdqa         HashKey_3(arg1), \T5
+        vpshufd         $0b01001110, \XMM6, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM6, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM6, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM6, \T4
+        vpxor           \T4, \T7, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vmovdqa         HashKey_2(arg1), \T5
+        vpshufd         $0b01001110, \XMM7, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM7, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM7, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM7, \T4
+        vpxor           \T4, \T7, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+
+        ######################
+
+        vmovdqa         HashKey(arg1), \T5
+        vpshufd         $0b01001110, \XMM8, \T2
+        vpshufd         $0b01001110, \T5, \T3
+        vpxor           \XMM8, \T2, \T2
+        vpxor           \T5, \T3, \T3
+
+        vpclmulqdq      $0x11, \T5, \XMM8, \T4
+        vpxor           \T4, \T6, \T6
+
+        vpclmulqdq      $0x00, \T5, \XMM8, \T4
+        vpxor           \T4, \T7, \T7
+
+        vpclmulqdq      $0x00, \T3, \T2, \T2
+
+        vpxor           \T2, \XMM1, \XMM1
+        vpxor           \T6, \XMM1, \XMM1
+        vpxor           \T7, \XMM1, \T2
+
+
+
+
+        vpslldq $8, \T2, \T4
+        vpsrldq $8, \T2, \T2
+
+        vpxor   \T4, \T7, \T7
+        vpxor   \T2, \T6, \T6                      # <T6:T7> holds the result of the
+						   # accumulated carry-less multiplications
+
+        #######################################################################
+        #first phase of the reduction
+        vmovdqa         POLY2(%rip), \T3
+
+        vpclmulqdq      $0x01, \T7, \T3, \T2
+        vpslldq         $8, \T2, \T2               # shift-L xmm2 2 DWs
+
+        vpxor           \T2, \T7, \T7              # first phase of the reduction complete
+        #######################################################################
+
+
+        #second phase of the reduction
+        vpclmulqdq      $0x00, \T7, \T3, \T2
+        vpsrldq         $4, \T2, \T2               # shift-R T2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R)
+
+        vpclmulqdq      $0x10, \T7, \T3, \T4
+        vpslldq         $4, \T4, \T4               # shift-L T4 1 DW (Shift-L 1-DW to obtain result with no shifts)
+
+        vpxor           \T2, \T4, \T4              # second phase of the reduction complete
+        #######################################################################
+        vpxor           \T4, \T6, \T6              # the result is in T6
+.endm
+
+
+
+# combined for GCM encrypt and decrypt functions
+# clobbering all xmm registers
+# clobbering r10, r11, r12, r13, r14, r15
+.macro  GCM_ENC_DEC_AVX2     ENC_DEC
+
+        #the number of pushes must equal STACK_OFFSET
+        push    %r12
+        push    %r13
+        push    %r14
+        push    %r15
+
+        mov     %rsp, %r14
+
+
+
+
+        sub     $VARIABLE_OFFSET, %rsp
+        and     $~63, %rsp                         # align rsp to 64 bytes
+
+
+        vmovdqu  HashKey(arg1), %xmm13             # xmm13 = HashKey
+
+        mov     arg4, %r13                         # save the number of bytes of plaintext/ciphertext
+        and     $-16, %r13                         # r13 = r13 - (r13 mod 16)
+
+        mov     %r13, %r12
+        shr     $4, %r12
+        and     $7, %r12
+        jz      _initial_num_blocks_is_0\@
+
+        cmp     $7, %r12
+        je      _initial_num_blocks_is_7\@
+        cmp     $6, %r12
+        je      _initial_num_blocks_is_6\@
+        cmp     $5, %r12
+        je      _initial_num_blocks_is_5\@
+        cmp     $4, %r12
+        je      _initial_num_blocks_is_4\@
+        cmp     $3, %r12
+        je      _initial_num_blocks_is_3\@
+        cmp     $2, %r12
+        je      _initial_num_blocks_is_2\@
+
+        jmp     _initial_num_blocks_is_1\@
+
+_initial_num_blocks_is_7\@:
+        INITIAL_BLOCKS_AVX2  7, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*7, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_6\@:
+        INITIAL_BLOCKS_AVX2  6, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*6, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_5\@:
+        INITIAL_BLOCKS_AVX2  5, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*5, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_4\@:
+        INITIAL_BLOCKS_AVX2  4, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*4, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_3\@:
+        INITIAL_BLOCKS_AVX2  3, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*3, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_2\@:
+        INITIAL_BLOCKS_AVX2  2, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*2, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_1\@:
+        INITIAL_BLOCKS_AVX2  1, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+        sub     $16*1, %r13
+        jmp     _initial_blocks_encrypted\@
+
+_initial_num_blocks_is_0\@:
+        INITIAL_BLOCKS_AVX2  0, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+
+
+_initial_blocks_encrypted\@:
+        cmp     $0, %r13
+        je      _zero_cipher_left\@
+
+        sub     $128, %r13
+        je      _eight_cipher_left\@
+
+
+
+
+        vmovd   %xmm9, %r15d
+        and     $255, %r15d
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+
+
+_encrypt_by_8_new\@:
+        cmp     $(255-8), %r15d
+        jg      _encrypt_by_8\@
+
+
+
+        add     $8, %r15b
+        GHASH_8_ENCRYPT_8_PARALLEL_AVX2      %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, out_order, \ENC_DEC
+        add     $128, %r11
+        sub     $128, %r13
+        jne     _encrypt_by_8_new\@
+
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        jmp     _eight_cipher_left\@
+
+_encrypt_by_8\@:
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        add     $8, %r15b
+        GHASH_8_ENCRYPT_8_PARALLEL_AVX2      %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, in_order, \ENC_DEC
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        add     $128, %r11
+        sub     $128, %r13
+        jne     _encrypt_by_8_new\@
+
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+
+
+
+
+_eight_cipher_left\@:
+        GHASH_LAST_8_AVX2    %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8
+
+
+_zero_cipher_left\@:
+        cmp     $16, arg4
+        jl      _only_less_than_16\@
+
+        mov     arg4, %r13
+        and     $15, %r13                            # r13 = (arg4 mod 16)
+
+        je      _multiple_of_16_bytes\@
+
+        # handle the last <16 Byte block seperately
+
+
+        vpaddd   ONE(%rip), %xmm9, %xmm9             # INCR CNT to get Yn
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        ENCRYPT_SINGLE_BLOCK    %xmm9                # E(K, Yn)
+
+        sub     $16, %r11
+        add     %r13, %r11
+        vmovdqu (arg3, %r11), %xmm1                  # receive the last <16 Byte block
+
+        lea     SHIFT_MASK+16(%rip), %r12
+        sub     %r13, %r12                           # adjust the shuffle mask pointer
+						     # to be able to shift 16-r13 bytes
+						     # (r13 is the number of bytes in plaintext mod 16)
+        vmovdqu (%r12), %xmm2                        # get the appropriate shuffle mask
+        vpshufb %xmm2, %xmm1, %xmm1                  # shift right 16-r13 bytes
+        jmp     _final_ghash_mul\@
+
+_only_less_than_16\@:
+        # check for 0 length
+        mov     arg4, %r13
+        and     $15, %r13                            # r13 = (arg4 mod 16)
+
+        je      _multiple_of_16_bytes\@
+
+        # handle the last <16 Byte block seperately
+
+
+        vpaddd  ONE(%rip), %xmm9, %xmm9              # INCR CNT to get Yn
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        ENCRYPT_SINGLE_BLOCK    %xmm9                # E(K, Yn)
+
+
+        lea     SHIFT_MASK+16(%rip), %r12
+        sub     %r13, %r12                           # adjust the shuffle mask pointer to be
+						     # able to shift 16-r13 bytes (r13 is the
+						     # number of bytes in plaintext mod 16)
+
+_get_last_16_byte_loop\@:
+        movb    (arg3, %r11),  %al
+        movb    %al,  TMP1 (%rsp , %r11)
+        add     $1, %r11
+        cmp     %r13,  %r11
+        jne     _get_last_16_byte_loop\@
+
+        vmovdqu  TMP1(%rsp), %xmm1
+
+        sub     $16, %r11
+
+_final_ghash_mul\@:
+        .if  \ENC_DEC ==  DEC
+        vmovdqa %xmm1, %xmm2
+        vpxor   %xmm1, %xmm9, %xmm9                  # Plaintext XOR E(K, Yn)
+        vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1        # get the appropriate mask to mask out top 16-r13 bytes of xmm9
+        vpand   %xmm1, %xmm9, %xmm9                  # mask out top 16-r13 bytes of xmm9
+        vpand   %xmm1, %xmm2, %xmm2
+        vpshufb SHUF_MASK(%rip), %xmm2, %xmm2
+        vpxor   %xmm2, %xmm14, %xmm14
+	#GHASH computation for the last <16 Byte block
+        GHASH_MUL_AVX2       %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+        sub     %r13, %r11
+        add     $16, %r11
+        .else
+        vpxor   %xmm1, %xmm9, %xmm9                  # Plaintext XOR E(K, Yn)
+        vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1        # get the appropriate mask to mask out top 16-r13 bytes of xmm9
+        vpand   %xmm1, %xmm9, %xmm9                  # mask out top 16-r13 bytes of xmm9
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+        vpxor   %xmm9, %xmm14, %xmm14
+	#GHASH computation for the last <16 Byte block
+        GHASH_MUL_AVX2       %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+        sub     %r13, %r11
+        add     $16, %r11
+        vpshufb SHUF_MASK(%rip), %xmm9, %xmm9        # shuffle xmm9 back to output as ciphertext
+        .endif
+
+
+        #############################
+        # output r13 Bytes
+        vmovq   %xmm9, %rax
+        cmp     $8, %r13
+        jle     _less_than_8_bytes_left\@
+
+        mov     %rax, (arg2 , %r11)
+        add     $8, %r11
+        vpsrldq $8, %xmm9, %xmm9
+        vmovq   %xmm9, %rax
+        sub     $8, %r13
+
+_less_than_8_bytes_left\@:
+        movb    %al, (arg2 , %r11)
+        add     $1, %r11
+        shr     $8, %rax
+        sub     $1, %r13
+        jne     _less_than_8_bytes_left\@
+        #############################
+
+_multiple_of_16_bytes\@:
+        mov     arg7, %r12                           # r12 = aadLen (number of bytes)
+        shl     $3, %r12                             # convert into number of bits
+        vmovd   %r12d, %xmm15                        # len(A) in xmm15
+
+        shl     $3, arg4                             # len(C) in bits  (*128)
+        vmovq   arg4, %xmm1
+        vpslldq $8, %xmm15, %xmm15                   # xmm15 = len(A)|| 0x0000000000000000
+        vpxor   %xmm1, %xmm15, %xmm15                # xmm15 = len(A)||len(C)
+
+        vpxor   %xmm15, %xmm14, %xmm14
+        GHASH_MUL_AVX2       %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6    # final GHASH computation
+        vpshufb SHUF_MASK(%rip), %xmm14, %xmm14              # perform a 16Byte swap
+
+        mov     arg5, %rax                           # rax = *Y0
+        vmovdqu (%rax), %xmm9                        # xmm9 = Y0
+
+        ENCRYPT_SINGLE_BLOCK    %xmm9                # E(K, Y0)
+
+        vpxor   %xmm14, %xmm9, %xmm9
+
+
+
+_return_T\@:
+        mov     arg8, %r10              # r10 = authTag
+        mov     arg9, %r11              # r11 = auth_tag_len
+
+        cmp     $16, %r11
+        je      _T_16\@
+
+        cmp     $12, %r11
+        je      _T_12\@
+
+_T_8\@:
+        vmovq   %xmm9, %rax
+        mov     %rax, (%r10)
+        jmp     _return_T_done\@
+_T_12\@:
+        vmovq   %xmm9, %rax
+        mov     %rax, (%r10)
+        vpsrldq $8, %xmm9, %xmm9
+        vmovd   %xmm9, %eax
+        mov     %eax, 8(%r10)
+        jmp     _return_T_done\@
+
+_T_16\@:
+        vmovdqu %xmm9, (%r10)
+
+_return_T_done\@:
+        mov     %r14, %rsp
+
+        pop     %r15
+        pop     %r14
+        pop     %r13
+        pop     %r12
+.endm
+
+
+#############################################################
+#void   aesni_gcm_precomp_avx_gen4
+#        (gcm_data     *my_ctx_data,
+#        u8     *hash_subkey)# /* H, the Hash sub key input.
+#				Data starts on a 16-byte boundary. */
+#############################################################
+ENTRY(aesni_gcm_precomp_avx_gen4)
+        #the number of pushes must equal STACK_OFFSET
+        push    %r12
+        push    %r13
+        push    %r14
+        push    %r15
+
+        mov     %rsp, %r14
+
+
+
+        sub     $VARIABLE_OFFSET, %rsp
+        and     $~63, %rsp                    # align rsp to 64 bytes
+
+        vmovdqu  (arg2), %xmm6                # xmm6 = HashKey
+
+        vpshufb  SHUF_MASK(%rip), %xmm6, %xmm6
+        ###############  PRECOMPUTATION of HashKey<<1 mod poly from the HashKey
+        vmovdqa  %xmm6, %xmm2
+        vpsllq   $1, %xmm6, %xmm6
+        vpsrlq   $63, %xmm2, %xmm2
+        vmovdqa  %xmm2, %xmm1
+        vpslldq  $8, %xmm2, %xmm2
+        vpsrldq  $8, %xmm1, %xmm1
+        vpor     %xmm2, %xmm6, %xmm6
+        #reduction
+        vpshufd  $0b00100100, %xmm1, %xmm2
+        vpcmpeqd TWOONE(%rip), %xmm2, %xmm2
+        vpand    POLY(%rip), %xmm2, %xmm2
+        vpxor    %xmm2, %xmm6, %xmm6          # xmm6 holds the HashKey<<1 mod poly
+        #######################################################################
+        vmovdqa  %xmm6, HashKey(arg1)         # store HashKey<<1 mod poly
+
+
+        PRECOMPUTE_AVX2  %xmm6, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5
+
+        mov     %r14, %rsp
+
+        pop     %r15
+        pop     %r14
+        pop     %r13
+        pop     %r12
+        ret
+ENDPROC(aesni_gcm_precomp_avx_gen4)
+
+
+###############################################################################
+#void   aesni_gcm_enc_avx_gen4(
+#        gcm_data        *my_ctx_data,     /* aligned to 16 Bytes */
+#        u8      *out, /* Ciphertext output. Encrypt in-place is allowed.  */
+#        const   u8 *in, /* Plaintext input */
+#        u64     plaintext_len, /* Length of data in Bytes for encryption. */
+#        u8      *iv, /* Pre-counter block j0: 4 byte salt
+#			(from Security Association) concatenated with 8 byte
+#			 Initialisation Vector (from IPSec ESP Payload)
+#			 concatenated with 0x00000001. 16-byte aligned pointer. */
+#        const   u8 *aad, /* Additional Authentication Data (AAD)*/
+#        u64     aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
+#        u8      *auth_tag, /* Authenticated Tag output. */
+#        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
+#				Valid values are 16 (most likely), 12 or 8. */
+###############################################################################
+ENTRY(aesni_gcm_enc_avx_gen4)
+        GCM_ENC_DEC_AVX2     ENC
+	ret
+ENDPROC(aesni_gcm_enc_avx_gen4)
+
+###############################################################################
+#void   aesni_gcm_dec_avx_gen4(
+#        gcm_data        *my_ctx_data,     /* aligned to 16 Bytes */
+#        u8      *out, /* Plaintext output. Decrypt in-place is allowed.  */
+#        const   u8 *in, /* Ciphertext input */
+#        u64     plaintext_len, /* Length of data in Bytes for encryption. */
+#        u8      *iv, /* Pre-counter block j0: 4 byte salt
+#			(from Security Association) concatenated with 8 byte
+#			Initialisation Vector (from IPSec ESP Payload)
+#			concatenated with 0x00000001. 16-byte aligned pointer. */
+#        const   u8 *aad, /* Additional Authentication Data (AAD)*/
+#        u64     aad_len, /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
+#        u8      *auth_tag, /* Authenticated Tag output. */
+#        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
+#				Valid values are 16 (most likely), 12 or 8. */
+###############################################################################
+ENTRY(aesni_gcm_dec_avx_gen4)
+        GCM_ENC_DEC_AVX2     DEC
+	ret
+ENDPROC(aesni_gcm_dec_avx_gen4)
+
+#endif /* CONFIG_AS_AVX2 */
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index aba34b8e514c..3ae311dd684e 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -101,6 +101,9 @@ asmlinkage void aesni_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out,
 int crypto_fpu_init(void);
 void crypto_fpu_exit(void);
 
+#define AVX_GEN2_OPTSIZE 640
+#define AVX_GEN4_OPTSIZE 4096
+
 #ifdef CONFIG_X86_64
 asmlinkage void aesni_ctr_enc(struct crypto_aes_ctx *ctx, u8 *out,
 			      const u8 *in, unsigned int len, u8 *iv);
@@ -150,6 +153,123 @@ asmlinkage void aesni_gcm_dec(void *ctx, u8 *out,
 			u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
 			u8 *auth_tag, unsigned long auth_tag_len);
 
+
+#ifdef CONFIG_AS_AVX
+/*
+ * asmlinkage void aesni_gcm_precomp_avx_gen2()
+ * gcm_data *my_ctx_data, context data
+ * u8 *hash_subkey,  the Hash sub key input. Data starts on a 16-byte boundary.
+ */
+asmlinkage void aesni_gcm_precomp_avx_gen2(void *my_ctx_data, u8 *hash_subkey);
+
+asmlinkage void aesni_gcm_enc_avx_gen2(void *ctx, u8 *out,
+			const u8 *in, unsigned long plaintext_len, u8 *iv,
+			const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len);
+
+asmlinkage void aesni_gcm_dec_avx_gen2(void *ctx, u8 *out,
+			const u8 *in, unsigned long ciphertext_len, u8 *iv,
+			const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len);
+
+static void aesni_gcm_enc_avx(void *ctx, u8 *out,
+			const u8 *in, unsigned long plaintext_len, u8 *iv,
+			u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len)
+{
+	if (plaintext_len < AVX_GEN2_OPTSIZE) {
+		aesni_gcm_enc(ctx, out, in, plaintext_len, iv, hash_subkey, aad,
+				aad_len, auth_tag, auth_tag_len);
+	} else {
+		aesni_gcm_precomp_avx_gen2(ctx, hash_subkey);
+		aesni_gcm_enc_avx_gen2(ctx, out, in, plaintext_len, iv, aad,
+					aad_len, auth_tag, auth_tag_len);
+	}
+}
+
+static void aesni_gcm_dec_avx(void *ctx, u8 *out,
+			const u8 *in, unsigned long ciphertext_len, u8 *iv,
+			u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len)
+{
+	if (ciphertext_len < AVX_GEN2_OPTSIZE) {
+		aesni_gcm_dec(ctx, out, in, ciphertext_len, iv, hash_subkey, aad,
+				aad_len, auth_tag, auth_tag_len);
+	} else {
+		aesni_gcm_precomp_avx_gen2(ctx, hash_subkey);
+		aesni_gcm_dec_avx_gen2(ctx, out, in, ciphertext_len, iv, aad,
+					aad_len, auth_tag, auth_tag_len);
+	}
+}
+#endif
+
+#ifdef CONFIG_AS_AVX2
+/*
+ * asmlinkage void aesni_gcm_precomp_avx_gen4()
+ * gcm_data *my_ctx_data, context data
+ * u8 *hash_subkey,  the Hash sub key input. Data starts on a 16-byte boundary.
+ */
+asmlinkage void aesni_gcm_precomp_avx_gen4(void *my_ctx_data, u8 *hash_subkey);
+
+asmlinkage void aesni_gcm_enc_avx_gen4(void *ctx, u8 *out,
+			const u8 *in, unsigned long plaintext_len, u8 *iv,
+			const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len);
+
+asmlinkage void aesni_gcm_dec_avx_gen4(void *ctx, u8 *out,
+			const u8 *in, unsigned long ciphertext_len, u8 *iv,
+			const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len);
+
+static void aesni_gcm_enc_avx2(void *ctx, u8 *out,
+			const u8 *in, unsigned long plaintext_len, u8 *iv,
+			u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len)
+{
+	if (plaintext_len < AVX_GEN2_OPTSIZE) {
+		aesni_gcm_enc(ctx, out, in, plaintext_len, iv, hash_subkey, aad,
+				aad_len, auth_tag, auth_tag_len);
+	} else if (plaintext_len < AVX_GEN4_OPTSIZE) {
+		aesni_gcm_precomp_avx_gen2(ctx, hash_subkey);
+		aesni_gcm_enc_avx_gen2(ctx, out, in, plaintext_len, iv, aad,
+					aad_len, auth_tag, auth_tag_len);
+	} else {
+		aesni_gcm_precomp_avx_gen4(ctx, hash_subkey);
+		aesni_gcm_enc_avx_gen4(ctx, out, in, plaintext_len, iv, aad,
+					aad_len, auth_tag, auth_tag_len);
+	}
+}
+
+static void aesni_gcm_dec_avx2(void *ctx, u8 *out,
+			const u8 *in, unsigned long ciphertext_len, u8 *iv,
+			u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len)
+{
+	if (ciphertext_len < AVX_GEN2_OPTSIZE) {
+		aesni_gcm_dec(ctx, out, in, ciphertext_len, iv, hash_subkey,
+				aad, aad_len, auth_tag, auth_tag_len);
+	} else if (ciphertext_len < AVX_GEN4_OPTSIZE) {
+		aesni_gcm_precomp_avx_gen2(ctx, hash_subkey);
+		aesni_gcm_dec_avx_gen2(ctx, out, in, ciphertext_len, iv, aad,
+					aad_len, auth_tag, auth_tag_len);
+	} else {
+		aesni_gcm_precomp_avx_gen4(ctx, hash_subkey);
+		aesni_gcm_dec_avx_gen4(ctx, out, in, ciphertext_len, iv, aad,
+					aad_len, auth_tag, auth_tag_len);
+	}
+}
+#endif
+
+static void (*aesni_gcm_enc_tfm)(void *ctx, u8 *out,
+			const u8 *in, unsigned long plaintext_len, u8 *iv,
+			u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len);
+
+static void (*aesni_gcm_dec_tfm)(void *ctx, u8 *out,
+			const u8 *in, unsigned long ciphertext_len, u8 *iv,
+			u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
+			u8 *auth_tag, unsigned long auth_tag_len);
+
 static inline struct
 aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm)
 {
@@ -915,7 +1035,7 @@ static int __driver_rfc4106_encrypt(struct aead_request *req)
 		dst = src;
 	}
 
-	aesni_gcm_enc(aes_ctx, dst, src, (unsigned long)req->cryptlen, iv,
+	aesni_gcm_enc_tfm(aes_ctx, dst, src, (unsigned long)req->cryptlen, iv,
 		ctx->hash_subkey, assoc, (unsigned long)req->assoclen, dst
 		+ ((unsigned long)req->cryptlen), auth_tag_len);
 
@@ -996,7 +1116,7 @@ static int __driver_rfc4106_decrypt(struct aead_request *req)
 		dst = src;
 	}
 
-	aesni_gcm_dec(aes_ctx, dst, src, tempCipherLen, iv,
+	aesni_gcm_dec_tfm(aes_ctx, dst, src, tempCipherLen, iv,
 		ctx->hash_subkey, assoc, (unsigned long)req->assoclen,
 		authTag, auth_tag_len);
 
@@ -1353,6 +1473,25 @@ static int __init aesni_init(void)
 
 	if (!x86_match_cpu(aesni_cpu_id))
 		return -ENODEV;
+#ifdef CONFIG_AS_AVX2
+	if (boot_cpu_has(X86_FEATURE_AVX2)) {
+		pr_info("AVX2 version of gcm_enc/dec engaged.\n");
+		aesni_gcm_enc_tfm = aesni_gcm_enc_avx2;
+		aesni_gcm_dec_tfm = aesni_gcm_dec_avx2;
+	} else
+#endif
+#ifdef CONFIG_AS_AVX
+	if (boot_cpu_has(X86_FEATURE_AVX)) {
+		pr_info("AVX version of gcm_enc/dec engaged.\n");
+		aesni_gcm_enc_tfm = aesni_gcm_enc_avx;
+		aesni_gcm_dec_tfm = aesni_gcm_dec_avx;
+	} else
+#endif
+	{
+		pr_info("SSE version of gcm_enc/dec engaged.\n");
+		aesni_gcm_enc_tfm = aesni_gcm_enc;
+		aesni_gcm_dec_tfm = aesni_gcm_dec;
+	}
 
 	err = crypto_fpu_init();
 	if (err)