diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-05 12:12:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-05 12:12:33 -0700 |
| commit | b2c311075db578f1433d9b303698491bfa21279a (patch) | |
| tree | 41d5f1b5ad6f45be7211f524328de81f7e9754be | |
| parent | 45175476ae2dbebc860d5cf486f2916044343513 (diff) | |
| parent | 02c0241b600e4ab8a732c89749e252165145d60c (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
- Do not idle omap device between crypto operations in one session.
- Added sha224/sha384 shims for SSSE3.
- More optimisations for camellia-aesni-avx2.
- Removed defunct blowfish/twofish AVX2 implementations.
- Added unaligned buffer self-tests.
- Added PCLMULQDQ optimisation for CRCT10DIF.
- Added support for Freescale's DCP co-processor
- Misc fixes.
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (44 commits)
crypto: testmgr - test hash implementations with unaligned buffers
crypto: testmgr - test AEADs with unaligned buffers
crypto: testmgr - test skciphers with unaligned buffers
crypto: testmgr - check that entries in alg_test_descs are in correct order
Revert "crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher"
Revert "crypto: blowfish - add AVX2/x86_64 implementation of blowfish cipher"
crypto: camellia-aesni-avx2 - tune assembly code for more performance
hwrng: bcm2835 - fix MODULE_LICENSE tag
hwrng: nomadik - use clk_prepare_enable()
crypto: picoxcell - replace strict_strtoul() with kstrtoul()
crypto: dcp - Staticize local symbols
crypto: dcp - Use NULL instead of 0
crypto: dcp - Use devm_* APIs
crypto: dcp - Remove redundant platform_set_drvdata()
hwrng: use platform_{get,set}_drvdata()
crypto: omap-aes - Don't idle/start AES device between Encrypt operations
crypto: crct10dif - Use PTR_RET
crypto: ux500 - Cocci spatch "resource_size.spatch"
crypto: sha256_ssse3 - add sha224 support
crypto: sha512_ssse3 - add sha384 support
...
48 files changed, 2541 insertions, 2563 deletions
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi index 195451bf770..6a8acb01b1d 100644 --- a/arch/arm/boot/dts/imx28.dtsi +++ b/arch/arm/boot/dts/imx28.dtsi @@ -736,7 +736,7 @@ dcp@80028000 { reg = <0x80028000 0x2000>; interrupts = <52 53 54>; - status = "disabled"; + compatible = "fsl-dcp"; }; pxp@8002a000 { diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index a3a0ed80f17..7d6ba9db1be 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -3,8 +3,6 @@ # avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no) -avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ - $(comma)4)$(comma)%ymm2,yes,no) obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o @@ -29,6 +27,7 @@ obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o +obj-$(CONFIG_CRYPTO_CRCT10DIF_PCLMUL) += crct10dif-pclmul.o # These modules require assembler to support AVX. ifeq ($(avx_supported),yes) @@ -42,10 +41,8 @@ endif # These modules require assembler to support AVX2. ifeq ($(avx2_supported),yes) - obj-$(CONFIG_CRYPTO_BLOWFISH_AVX2_X86_64) += blowfish-avx2.o obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o - obj-$(CONFIG_CRYPTO_TWOFISH_AVX2_X86_64) += twofish-avx2.o endif aes-i586-y := aes-i586-asm_32.o aes_glue.o @@ -73,10 +70,8 @@ ifeq ($(avx_supported),yes) endif ifeq ($(avx2_supported),yes) - blowfish-avx2-y := blowfish-avx2-asm_64.o blowfish_avx2_glue.o camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o - twofish-avx2-y := twofish-avx2-asm_64.o twofish_avx2_glue.o endif aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o fpu.o @@ -87,3 +82,4 @@ crc32c-intel-$(CONFIG_64BIT) += crc32c-pcl-intel-asm_64.o crc32-pclmul-y := crc32-pclmul_asm.o crc32-pclmul_glue.o sha256-ssse3-y := sha256-ssse3-asm.o sha256-avx-asm.o sha256-avx2-asm.o sha256_ssse3_glue.o sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o +crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o diff --git a/arch/x86/crypto/blowfish-avx2-asm_64.S b/arch/x86/crypto/blowfish-avx2-asm_64.S deleted file mode 100644 index 784452e0d05..00000000000 --- a/arch/x86/crypto/blowfish-avx2-asm_64.S +++ /dev/null @@ -1,449 +0,0 @@ -/* - * x86_64/AVX2 assembler optimized version of Blowfish - * - * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - */ - -#include <linux/linkage.h> - -.file "blowfish-avx2-asm_64.S" - -.data -.align 32 - -.Lprefetch_mask: -.long 0*64 -.long 1*64 -.long 2*64 -.long 3*64 -.long 4*64 -.long 5*64 -.long 6*64 -.long 7*64 - -.Lbswap32_mask: -.long 0x00010203 -.long 0x04050607 -.long 0x08090a0b -.long 0x0c0d0e0f - -.Lbswap128_mask: - .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 -.Lbswap_iv_mask: - .byte 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0 - -.text -/* structure of crypto context */ -#define p 0 -#define s0 ((16 + 2) * 4) -#define s1 ((16 + 2 + (1 * 256)) * 4) -#define s2 ((16 + 2 + (2 * 256)) * 4) -#define s3 ((16 + 2 + (3 * 256)) * 4) - -/* register macros */ -#define CTX %rdi -#define RIO %rdx - -#define RS0 %rax -#define RS1 %r8 -#define RS2 %r9 -#define RS3 %r10 - -#define RLOOP %r11 -#define RLOOPd %r11d - -#define RXr0 %ymm8 -#define RXr1 %ymm9 -#define RXr2 %ymm10 -#define RXr3 %ymm11 -#define RXl0 %ymm12 -#define RXl1 %ymm13 -#define RXl2 %ymm14 -#define RXl3 %ymm15 - -/* temp regs */ -#define RT0 %ymm0 -#define RT0x %xmm0 -#define RT1 %ymm1 -#define RT1x %xmm1 -#define RIDX0 %ymm2 -#define RIDX1 %ymm3 -#define RIDX1x %xmm3 -#define RIDX2 %ymm4 -#define RIDX3 %ymm5 - -/* vpgatherdd mask and '-1' */ -#define RNOT %ymm6 - -/* byte mask, (-1 >> 24) */ -#define RBYTE %ymm7 - -/*********************************************************************** - * 32-way AVX2 blowfish - ***********************************************************************/ -#define F(xl, xr) \ - vpsrld $24, xl, RIDX0; \ - vpsrld $16, xl, RIDX1; \ - vpsrld $8, xl, RIDX2; \ - vpand RBYTE, RIDX1, RIDX1; \ - vpand RBYTE, RIDX2, RIDX2; \ - vpand RBYTE, xl, RIDX3; \ - \ - vpgatherdd RNOT, (RS0, RIDX0, 4), RT0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpcmpeqd RIDX0, RIDX0, RIDX0; \ - \ - vpgatherdd RNOT, (RS1, RIDX1, 4), RT1; \ - vpcmpeqd RIDX1, RIDX1, RIDX1; \ - vpaddd RT0, RT1, RT0; \ - \ - vpgatherdd RIDX0, (RS2, RIDX2, 4), RT1; \ - vpxor RT0, RT1, RT0; \ - \ - vpgatherdd RIDX1, (RS3, RIDX3, 4), RT1; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpaddd RT0, RT1, RT0; \ - \ - vpxor RT0, xr, xr; - -#define add_roundkey(xl, nmem) \ - vpbroadcastd nmem, RT0; \ - vpxor RT0, xl ## 0, xl ## 0; \ - vpxor RT0, xl ## 1, xl ## 1; \ - vpxor RT0, xl ## 2, xl ## 2; \ - vpxor RT0, xl ## 3, xl ## 3; - -#define round_enc() \ - add_roundkey(RXr, p(CTX,RLOOP,4)); \ - F(RXl0, RXr0); \ - F(RXl1, RXr1); \ - F(RXl2, RXr2); \ - F(RXl3, RXr3); \ - \ - add_roundkey(RXl, p+4(CTX,RLOOP,4)); \ - F(RXr0, RXl0); \ - F(RXr1, RXl1); \ - F(RXr2, RXl2); \ - F(RXr3, RXl3); - -#define round_dec() \ - add_roundkey(RXr, p+4*2(CTX,RLOOP,4)); \ - F(RXl0, RXr0); \ - F(RXl1, RXr1); \ - F(RXl2, RXr2); \ - F(RXl3, RXr3); \ - \ - add_roundkey(RXl, p+4(CTX,RLOOP,4)); \ - F(RXr0, RXl0); \ - F(RXr1, RXl1); \ - F(RXr2, RXl2); \ - F(RXr3, RXl3); - -#define init_round_constants() \ - vpcmpeqd RNOT, RNOT, RNOT; \ - leaq s0(CTX), RS0; \ - leaq s1(CTX), RS1; \ - leaq s2(CTX), RS2; \ - leaq s3(CTX), RS3; \ - vpsrld $24, RNOT, RBYTE; - -#define transpose_2x2(x0, x1, t0) \ - vpunpckldq x0, x1, t0; \ - vpunpckhdq x0, x1, x1; \ - \ - vpunpcklqdq t0, x1, x0; \ - vpunpckhqdq t0, x1, x1; - -#define read_block(xl, xr) \ - vbroadcasti128 .Lbswap32_mask, RT1; \ - \ - vpshufb RT1, xl ## 0, xl ## 0; \ - vpshufb RT1, xr ## 0, xr ## 0; \ - vpshufb RT1, xl ## 1, xl ## 1; \ - vpshufb RT1, xr ## 1, xr ## 1; \ - vpshufb RT1, xl ## 2, xl ## 2; \ - vpshufb RT1, xr ## 2, xr ## 2; \ - vpshufb RT1, xl ## 3, xl ## 3; \ - vpshufb RT1, xr ## 3, xr ## 3; \ - \ - transpose_2x2(xl ## 0, xr ## 0, RT0); \ - transpose_2x2(xl ## 1, xr ## 1, RT0); \ - transpose_2x2(xl ## 2, xr ## 2, RT0); \ - transpose_2x2(xl ## 3, xr ## 3, RT0); - -#define write_block(xl, xr) \ - vbroadcasti128 .Lbswap32_mask, RT1; \ - \ - transpose_2x2(xl ## 0, xr ## 0, RT0); \ - transpose_2x2(xl ## 1, xr ## 1, RT0); \ - transpose_2x2(xl ## 2, xr ## 2, RT0); \ - transpose_2x2(xl ## 3, xr ## 3, RT0); \ - \ - vpshufb RT1, xl ## 0, xl ## 0; \ - vpshufb RT1, xr ## 0, xr ## 0; \ - vpshufb RT1, xl ## 1, xl ## 1; \ - vpshufb RT1, xr ## 1, xr ## 1; \ - vpshufb RT1, xl ## 2, xl ## 2; \ - vpshufb RT1, xr ## 2, xr ## 2; \ - vpshufb RT1, xl ## 3, xl ## 3; \ - vpshufb RT1, xr ## 3, xr ## 3; - -.align 8 -__blowfish_enc_blk32: - /* input: - * %rdi: ctx, CTX - * RXl0..4, RXr0..4: plaintext - * output: - * RXl0..4, RXr0..4: ciphertext (RXl <=> RXr swapped) - */ - init_round_constants(); - - read_block(RXl, RXr); - - movl $1, RLOOPd; - add_roundkey(RXl, p+4*(0)(CTX)); - -.align 4 -.L__enc_loop: - round_enc(); - - leal 2(RLOOPd), RLOOPd; - cmpl $17, RLOOPd; - jne .L__enc_loop; - - add_roundkey(RXr, p+4*(17)(CTX)); - - write_block(RXl, RXr); - - ret; -ENDPROC(__blowfish_enc_blk32) - -.align 8 -__blowfish_dec_blk32: - /* input: - * %rdi: ctx, CTX - * RXl0..4, RXr0..4: ciphertext - * output: - * RXl0..4, RXr0..4: plaintext (RXl <=> RXr swapped) - */ - init_round_constants(); - - read_block(RXl, RXr); - - movl $14, RLOOPd; - add_roundkey(RXl, p+4*(17)(CTX)); - -.align 4 -.L__dec_loop: - round_dec(); - - addl $-2, RLOOPd; - jns .L__dec_loop; - - add_roundkey(RXr, p+4*(0)(CTX)); - - write_block(RXl, RXr); - - ret; -ENDPROC(__blowfish_dec_blk32) - -ENTRY(blowfish_ecb_enc_32way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - */ - - vzeroupper; - - vmovdqu 0*32(%rdx), RXl0; - vmovdqu 1*32(%rdx), RXr0; - vmovdqu 2*32(%rdx), RXl1; - vmovdqu 3*32(%rdx), RXr1; - vmovdqu 4*32(%rdx), RXl2; - vmovdqu 5*32(%rdx), RXr2; - vmovdqu 6*32(%rdx), RXl3; - vmovdqu 7*32(%rdx), RXr3; - - call __blowfish_enc_blk32; - - vmovdqu RXr0, 0*32(%rsi); - vmovdqu RXl0, 1*32(%rsi); - vmovdqu RXr1, 2*32(%rsi); - vmovdqu RXl1, 3*32(%rsi); - vmovdqu RXr2, 4*32(%rsi); - vmovdqu RXl2, 5*32(%rsi); - vmovdqu RXr3, 6*32(%rsi); - vmovdqu RXl3, 7*32(%rsi); - - vzeroupper; - - ret; -ENDPROC(blowfish_ecb_enc_32way) - -ENTRY(blowfish_ecb_dec_32way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - */ - - vzeroupper; - - vmovdqu 0*32(%rdx), RXl0; - vmovdqu 1*32(%rdx), RXr0; - vmovdqu 2*32(%rdx), RXl1; - vmovdqu 3*32(%rdx), RXr1; - vmovdqu 4*32(%rdx), RXl2; - vmovdqu 5*32(%rdx), RXr2; - vmovdqu 6*32(%rdx), RXl3; - vmovdqu 7*32(%rdx), RXr3; - - call __blowfish_dec_blk32; - - vmovdqu RXr0, 0*32(%rsi); - vmovdqu RXl0, 1*32(%rsi); - vmovdqu RXr1, 2*32(%rsi); - vmovdqu RXl1, 3*32(%rsi); - vmovdqu RXr2, 4*32(%rsi); - vmovdqu RXl2, 5*32(%rsi); - vmovdqu RXr3, 6*32(%rsi); - vmovdqu RXl3, 7*32(%rsi); - - vzeroupper; - - ret; -ENDPROC(blowfish_ecb_dec_32way) - -ENTRY(blowfish_cbc_dec_32way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - */ - - vzeroupper; - - vmovdqu 0*32(%rdx), RXl0; - vmovdqu 1*32(%rdx), RXr0; - vmovdqu 2*32(%rdx), RXl1; - vmovdqu 3*32(%rdx), RXr1; - vmovdqu 4*32(%rdx), RXl2; - vmovdqu 5*32(%rdx), RXr2; - vmovdqu 6*32(%rdx), RXl3; - vmovdqu 7*32(%rdx), RXr3; - - call __blowfish_dec_blk32; - - /* xor with src */ - vmovq (%rdx), RT0x; - vpshufd $0x4f, RT0x, RT0x; - vinserti128 $1, 8(%rdx), RT0, RT0; - vpxor RT0, RXr0, RXr0; - vpxor 0*32+24(%rdx), RXl0, RXl0; - vpxor 1*32+24(%rdx), RXr1, RXr1; - vpxor 2*32+24(%rdx), RXl1, RXl1; - vpxor 3*32+24(%rdx), RXr2, RXr2; - vpxor 4*32+24(%rdx), RXl2, RXl2; - vpxor 5*32+24(%rdx), RXr3, RXr3; - vpxor 6*32+24(%rdx), RXl3, RXl3; - - vmovdqu RXr0, (0*32)(%rsi); - vmovdqu RXl0, (1*32)(%rsi); - vmovdqu RXr1, (2*32)(%rsi); - vmovdqu RXl1, (3*32)(%rsi); - vmovdqu RXr2, (4*32)(%rsi); - vmovdqu RXl2, (5*32)(%rsi); - vmovdqu RXr3, (6*32)(%rsi); - vmovdqu RXl3, (7*32)(%rsi); - - vzeroupper; - - ret; -ENDPROC(blowfish_cbc_dec_32way) - -ENTRY(blowfish_ctr_32way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - * %rcx: iv (big endian, 64bit) - */ - - vzeroupper; - - vpcmpeqd RT0, RT0, RT0; - vpsrldq $8, RT0, RT0; /* a: -1, b: 0, c: -1, d: 0 */ - - vpcmpeqd RT1x, RT1x, RT1x; - vpaddq RT1x, RT1x, RT1x; /* a: -2, b: -2 */ - vpxor RIDX0, RIDX0, RIDX0; - vinserti128 $1, RT1x, RIDX0, RIDX0; /* a: 0, b: 0, c: -2, d: -2 */ - - vpaddq RIDX0, RT0, RT0; /* a: -1, b: 0, c: -3, d: -2 */ - - vpcmpeqd RT1, RT1, RT1; - vpaddq RT1, RT1, RT1; /* a: -2, b: -2, c: -2, d: -2 */ - vpaddq RT1, RT1, RIDX2; /* a: -4, b: -4, c: -4, d: -4 */ - - vbroadcasti128 .Lbswap_iv_mask, RIDX0; - vbroadcasti128 .Lbswap128_mask, RIDX1; - - /* load IV and byteswap */ - vmovq (%rcx), RT1x; - vinserti128 $1, RT1x, RT1, RT1; /* a: BE, b: 0, c: BE, d: 0 */ - vpshufb RIDX0, RT1, RT1; /* a: LE, b: LE, c: LE, d: LE */ - - /* construct IVs */ - vpsubq RT0, RT1, RT1; /* a: le1, b: le0, c: le3, d: le2 */ - vpshufb RIDX1, RT1, RXl0; /* a: be0, b: be1, c: be2, d: be3 */ - vpsubq RIDX2, RT1, RT1; /* le5, le4, le7, le6 */ - vpshufb RIDX1, RT1, RXr0; /* be4, be5, be6, be7 */ - vpsubq RIDX2, RT1, RT1; - vpshufb RIDX1, RT1, RXl1; - vpsubq RIDX2, RT1, RT1; - vpshufb RIDX1, RT1, RXr1; - vpsubq RIDX2, RT1, RT1; - vpshufb RIDX1, RT1, RXl2; - vpsubq RIDX2, RT1, RT1; - vpshufb RIDX1, RT1, RXr2; - vpsubq RIDX2, RT1, RT1; - vpshufb RIDX1, RT1, RXl3; - vpsubq RIDX2, RT1, RT1; - vpshufb RIDX1, RT1, RXr3; - - /* store last IV */ - vpsubq RIDX2, RT1, RT1; /* a: le33, b: le32, ... */ - vpshufb RIDX1x, RT1x, RT1x; /* a: be32, ... */ - vmovq RT1x, (%rcx); - - call __blowfish_enc_blk32; - - /* dst = src ^ iv */ - vpxor 0*32(%rdx), RXr0, RXr0; - vpxor 1*32(%rdx), RXl0, RXl0; - vpxor 2*32(%rdx), RXr1, RXr1; - vpxor 3*32(%rdx), RXl1, RXl1; - vpxor 4*32(%rdx), RXr2, RXr2; - vpxor 5*32(%rdx), RXl2, RXl2; - vpxor 6*32(%rdx), RXr3, RXr3; - vpxor 7*32(%rdx), RXl3, RXl3; - vmovdqu RXr0, (0*32)(%rsi); - vmovdqu RXl0, (1*32)(%rsi); - vmovdqu RXr1, (2*32)(%rsi); - vmovdqu RXl1, (3*32)(%rsi); - vmovdqu RXr2, (4*32)(%rsi); - vmovdqu RXl2, (5*32)(%rsi); - vmovdqu RXr3, (6*32)(%rsi); - vmovdqu RXl3, (7*32)(%rsi); - - vzeroupper; - - ret; -ENDPROC(blowfish_ctr_32way) diff --git a/arch/x86/crypto/blowfish_avx2_glue.c b/arch/x86/crypto/blowfish_avx2_glue.c deleted file mode 100644 index 4417e9aea78..00000000000 --- a/arch/x86/crypto/blowfish_avx2_glue.c +++ /dev/null @@ -1,585 +0,0 @@ -/* - * Glue Code for x86_64/AVX2 assembler optimized version of Blowfish - * - * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> - * - * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by: - * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> - * CTR part based on code (crypto/ctr.c) by: - * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/crypto.h> -#include <linux/err.h> -#include <crypto/algapi.h> -#include <crypto/blowfish.h> -#include <crypto/cryptd.h> -#include <crypto/ctr.h> -#include <asm/i387.h> -#include <asm/xcr.h> -#include <asm/xsave.h> -#include <asm/crypto/blowfish.h> -#include <asm/crypto/ablk_helper.h> -#include <crypto/scatterwalk.h> - -#define BF_AVX2_PARALLEL_BLOCKS 32 - -/* 32-way AVX2 parallel cipher functions */ -asmlinkage void blowfish_ecb_enc_32way(struct bf_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void blowfish_ecb_dec_32way(struct bf_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void blowfish_cbc_dec_32way(struct bf_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void blowfish_ctr_32way(struct bf_ctx *ctx, u8 *dst, const u8 *src, - __be64 *iv); - -static inline bool bf_fpu_begin(bool fpu_enabled, unsigned int nbytes) -{ - if (fpu_enabled) - return true; - - /* FPU is only used when chunk to be processed is large enough, so - * do not enable FPU until it is necessary. - */ - if (nbytes < BF_BLOCK_SIZE * BF_AVX2_PARALLEL_BLOCKS) - return false; - - kernel_fpu_begin(); - return true; -} - -static inline void bf_fpu_end(bool fpu_enabled) -{ - if (fpu_enabled) - kernel_fpu_end(); -} - -static int ecb_crypt(struct blkcipher_desc *desc, struct blkcipher_walk *walk, - bool enc) -{ - bool fpu_enabled = false; - struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - const unsigned int bsize = BF_BLOCK_SIZE; - unsigned int nbytes; - int err; - - err = blkcipher_walk_virt(desc, walk); - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; - - while ((nbytes = walk->nbytes)) { - u8 *wsrc = walk->src.virt.addr; - u8 *wdst = walk->dst.virt.addr; - - fpu_enabled = bf_fpu_begin(fpu_enabled, nbytes); - - /* Process multi-block AVX2 batch */ - if (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS) { - do { - if (enc) - blowfish_ecb_enc_32way(ctx, wdst, wsrc); - else - blowfish_ecb_dec_32way(ctx, wdst, wsrc); - - wsrc += bsize * BF_AVX2_PARALLEL_BLOCKS; - wdst += bsize * BF_AVX2_PARALLEL_BLOCKS; - nbytes -= bsize * BF_AVX2_PARALLEL_BLOCKS; - } while (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS); - - if (nbytes < bsize) - goto done; - } - - /* Process multi-block batch */ - if (nbytes >= bsize * BF_PARALLEL_BLOCKS) { - do { - if (enc) - blowfish_enc_blk_4way(ctx, wdst, wsrc); - else - blowfish_dec_blk_4way(ctx, wdst, wsrc); - - wsrc += bsize * BF_PARALLEL_BLOCKS; - wdst += bsize * BF_PARALLEL_BLOCKS; - nbytes -= bsize * BF_PARALLEL_BLOCKS; - } while (nbytes >= bsize * BF_PARALLEL_BLOCKS); - - if (nbytes < bsize) - goto done; - } - - /* Handle leftovers */ - do { - if (enc) - blowfish_enc_blk(ctx, wdst, wsrc); - else - blowfish_dec_blk(ctx, wdst, wsrc); - - wsrc += bsize; - wdst += bsize; - nbytes -= bsize; - } while (nbytes >= bsize); - -done: - err = blkcipher_walk_done(desc, walk, nbytes); - } - - bf_fpu_end(fpu_enabled); - return err; -} - -static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct blkcipher_walk walk; - - blkcipher_walk_init(&walk, dst, src, nbytes); - return ecb_crypt(desc, &walk, true); -} - -static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct blkcipher_walk walk; - - blkcipher_walk_init(&walk, dst, src, nbytes); - return ecb_crypt(desc, &walk, false); -} - -static unsigned int __cbc_encrypt(struct blkcipher_desc *desc, - struct blkcipher_walk *walk) -{ - struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - unsigned int bsize = BF_BLOCK_SIZE; - unsigned int nbytes = walk->nbytes; - u64 *src = (u64 *)walk->src.virt.addr; - u64 *dst = (u64 *)walk->dst.virt.addr; - u64 *iv = (u64 *)walk->iv; - - do { - *dst = *src ^ *iv; - blowfish_enc_blk(ctx, (u8 *)dst, (u8 *)dst); - iv = dst; - - src += 1; - dst += 1; - nbytes -= bsize; - } while (nbytes >= bsize); - - *(u64 *)walk->iv = *iv; - return nbytes; -} - -static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct blkcipher_walk walk; - int err; - - blkcipher_walk_init(&walk, dst, src, nbytes); - err = blkcipher_walk_virt(desc, &walk); - - while ((nbytes = walk.nbytes)) { - nbytes = __cbc_encrypt(desc, &walk); - err = blkcipher_walk_done(desc, &walk, nbytes); - } - - return err; -} - -static unsigned int __cbc_decrypt(struct blkcipher_desc *desc, - struct blkcipher_walk *walk) -{ - struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - const unsigned int bsize = BF_BLOCK_SIZE; - unsigned int nbytes = walk->nbytes; - u64 *src = (u64 *)walk->src.virt.addr; - u64 *dst = (u64 *)walk->dst.virt.addr; - u64 last_iv; - int i; - - /* Start of the last block. */ - src += nbytes / bsize - 1; - dst += nbytes / bsize - 1; - - last_iv = *src; - - /* Process multi-block AVX2 batch */ - if (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS) { - do { - nbytes -= bsize * (BF_AVX2_PARALLEL_BLOCKS - 1); - src -= BF_AVX2_PARALLEL_BLOCKS - 1; - dst -= BF_AVX2_PARALLEL_BLOCKS - 1; - - blowfish_cbc_dec_32way(ctx, (u8 *)dst, (u8 *)src); - - nbytes -= bsize; - if (nbytes < bsize) - goto done; - - *dst ^= *(src - 1); - src -= 1; - dst -= 1; - } while (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS); - - if (nbytes < bsize) - goto done; - } - - /* Process multi-block batch */ - if (nbytes >= bsize * BF_PARALLEL_BLOCKS) { - u64 ivs[BF_PARALLEL_BLOCKS - 1]; - - do { - nbytes -= bsize * (BF_PARALLEL_BLOCKS - 1); - src -= BF_PARALLEL_BLOCKS - 1; - dst -= BF_PARALLEL_BLOCKS - 1; - - for (i = 0; i < BF_PARALLEL_BLOCKS - 1; i++) - ivs[i] = src[i]; - - blowfish_dec_blk_4way(ctx, (u8 *)dst, (u8 *)src); - - for (i = 0; i < BF_PARALLEL_BLOCKS - 1; i++) - dst[i + 1] ^= ivs[i]; - - nbytes -= bsize; - if (nbytes < bsize) - goto done; - - *dst ^= *(src - 1); - src -= 1; - dst -= 1; - } while (nbytes >= bsize * BF_PARALLEL_BLOCKS); - - if (nbytes < bsize) - goto done; - } - - /* Handle leftovers */ - for (;;) { - blowfish_dec_blk(ctx, (u8 *)dst, (u8 *)src); - - nbytes -= bsize; - if (nbytes < bsize) - break; - - *dst ^= *(src - 1); - src -= 1; - dst -= 1; - } - -done: - *dst ^= *(u64 *)walk->iv; - *(u64 *)walk->iv = last_iv; - - return nbytes; -} - -static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - bool fpu_enabled = false; - struct blkcipher_walk walk; - int err; - - blkcipher_walk_init(&walk, dst, src, nbytes); - err = blkcipher_walk_virt(desc, &walk); - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; - - while ((nbytes = walk.nbytes)) { - fpu_enabled = bf_fpu_begin(fpu_enabled, nbytes); - nbytes = __cbc_decrypt(desc, &walk); - err = blkcipher_walk_done(desc, &walk, nbytes); - } - - bf_fpu_end(fpu_enabled); - return err; -} - -static void ctr_crypt_final(struct blkcipher_desc *desc, - struct blkcipher_walk *walk) -{ - struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - u8 *ctrblk = walk->iv; - u8 keystream[BF_BLOCK_SIZE]; - u8 *src = walk->src.virt.addr; - u8 *dst = walk->dst.virt.addr; - unsigned int nbytes = walk->nbytes; - - blowfish_enc_blk(ctx, keystream, ctrblk); - crypto_xor(keystream, src, nbytes); - memcpy(dst, keystream, nbytes); - - crypto_inc(ctrblk, BF_BLOCK_SIZE); -} - -static unsigned int __ctr_crypt(struct blkcipher_desc *desc, - struct blkcipher_walk *walk) -{ - struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - unsigned int bsize = BF_BLOCK_SIZE; - unsigned int nbytes = walk->nbytes; - u64 *src = (u64 *)walk->src.virt.addr; - u64 *dst = (u64 *)walk->dst.virt.addr; - int i; - - /* Process multi-block AVX2 batch */ - if (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS) { - do { - blowfish_ctr_32way(ctx, (u8 *)dst, (u8 *)src, - (__be64 *)walk->iv); - - src += BF_AVX2_PARALLEL_BLOCKS; - dst += BF_AVX2_PARALLEL_BLOCKS; - nbytes -= bsize * BF_AVX2_PARALLEL_BLOCKS; - } while (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS); - - if (nbytes < bsize) - goto done; - } - - /* Process four block batch */ - if (nbytes >= bsize * BF_PARALLEL_BLOCKS) { - __be64 ctrblocks[BF_PARALLEL_BLOCKS]; - u64 ctrblk = be64_to_cpu(*(__be64 *)walk->iv); - - do { - /* create ctrblks for parallel encrypt */ - for (i = 0; i < BF_PARALLEL_BLOCKS; i++) { - if (dst != src) - dst[i] = src[i]; - - ctrblocks[i] = cpu_to_be64(ctrblk++); - } - - blowfish_enc_blk_xor_4way(ctx, (u8 *)dst, - (u8 *)ctrblocks); - - src += BF_PARALLEL_BLOCKS; - dst += BF_PARALLEL_BLOCKS; - nbytes -= bsize * BF_PARALLEL_BLOCKS; - } while (nbytes >= bsize * BF_PARALLEL_BLOCKS); - - *(__be64 *)walk->iv = cpu_to_be64(ctrblk); - - if (nbytes < bsize) - goto done; - } - - /* Handle leftovers */ - do { - u64 ctrblk; - - if (dst != src) - *dst = *src; - - ctrblk = *(u64 *)walk->iv; - be64_add_cpu((__be64 *)walk->iv, 1); - - blowfish_enc_blk_xor(ctx, (u8 *)dst, (u8 *)&ctrblk); - - src += 1; - dst += 1; - } while ((nbytes -= bsize) >= bsize); - -done: - return nbytes; -} - -static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - bool fpu_enabled = false; - struct blkcipher_walk walk; - int err; - - blkcipher_walk_init(&walk, dst, src, nbytes); - err = blkcipher_walk_virt_block(desc, &walk, BF_BLOCK_SIZE); - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; - - while ((nbytes = walk.nbytes) >= BF_BLOCK_SIZE) { - fpu_enabled = bf_fpu_begin(fpu_enabled, nbytes); - nbytes = __ctr_crypt(desc, &walk); - err = blkcipher_walk_done(desc, &walk, nbytes); - } - - bf_fpu_end(fpu_enabled); - - if (walk.nbytes) { - ctr_crypt_final(desc, &walk); - err = blkcipher_walk_done(desc, &walk, 0); - } - - return err; -} - -static struct crypto_alg bf_algs[6] = { { - .cra_name = "__ecb-blowfish-avx2", - .cra_driver_name = "__driver-ecb-blowfish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = BF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct bf_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_u = { - .blkcipher = { - .min_keysize = BF_MIN_KEY_SIZE, - .max_keysize = BF_MAX_KEY_SIZE, - .setkey = blowfish_setkey, - .encrypt = ecb_encrypt, - .decrypt = ecb_decrypt, - }, - }, -}, { - .cra_name = "__cbc-blowfish-avx2", - .cra_driver_name = "__driver-cbc-blowfish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = BF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct bf_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_u = { - .blkcipher = { - .min_keysize = BF_MIN_KEY_SIZE, - .max_keysize = BF_MAX_KEY_SIZE, - .setkey = blowfish_setkey, - .encrypt = cbc_encrypt, - .decrypt = cbc_decrypt, - }, - }, -}, { - .cra_name = "__ctr-blowfish-avx2", - .cra_driver_name = "__driver-ctr-blowfish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct bf_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_u = { - .blkcipher = { - .min_keysize = BF_MIN_KEY_SIZE, - .max_keysize = BF_MAX_KEY_SIZE, - .ivsize = BF_BLOCK_SIZE, - .setkey = blowfish_setkey, - .encrypt = ctr_crypt, - .decrypt = ctr_crypt, - }, - }, -}, { - .cra_name = "ecb(blowfish)", - .cra_driver_name = "ecb-blowfish-avx2", - .cra_priority = 400, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = BF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = BF_MIN_KEY_SIZE, - .max_keysize = BF_MAX_KEY_SIZE, - .setkey = ablk_set_key, - .encrypt = ablk_encrypt, - .decrypt = ablk_decrypt, - }, - }, -}, { - .cra_name = "cbc(blowfish)", - .cra_driver_name = "cbc-blowfish-avx2", - .cra_priority = 400, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = BF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = BF_MIN_KEY_SIZE, - .max_keysize = BF_MAX_KEY_SIZE, - .ivsize = BF_BLOCK_SIZE, - .setkey = ablk_set_key, - .encrypt = __ablk_encrypt, - .decrypt = ablk_decrypt, - }, - }, -}, { - .cra_name = "ctr(blowfish)", - .cra_driver_name = "ctr-blowfish-avx2", - .cra_priority = 400, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = BF_MIN_KEY_SIZE, - .max_keysize = BF_MAX_KEY_SIZE, - .ivsize = BF_BLOCK_SIZE, - .setkey = ablk_set_key, - .encrypt = ablk_encrypt, - .decrypt = ablk_encrypt, - .geniv = "chainiv", - }, - }, -} }; - - -static int __init init(void) -{ - u64 xcr0; - - if (!cpu_has_avx2 || !cpu_has_osxsave) { - pr_info("AVX2 instructions are not detected.\n"); - return -ENODEV; - } - - xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK); - if ((xcr0 & (XSTATE_SSE | XSTATE_YMM)) != (XSTATE_SSE | XSTATE_YMM)) { - pr_info("AVX detected but unusable.\n"); - return -ENODEV; - } - - return crypto_register_algs(bf_algs, ARRAY_SIZE(bf_algs)); -} - -static void __exit fini(void) -{ - crypto_unregister_algs(bf_algs, ARRAY_SIZE(bf_algs)); -} - -module_init(init); -module_exit(fini); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Blowfish Cipher Algorithm, AVX2 optimized"); -MODULE_ALIAS("blowfish"); -MODULE_ALIAS("blowfish-asm"); diff --git a/arch/x86/crypto/blowfish_glue.c b/arch/x86/crypto/blowfish_glue.c index 3548d76dbaa..50ec333b70e 100644 --- a/arch/x86/crypto/blowfish_glue.c +++ b/arch/x86/crypto/blowfish_glue.c @@ -1,7 +1,7 @@ /* * Glue Code for assembler optimized version of Blowfish * - * Copyright © 2011-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> + * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> * * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by: * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au> @@ -32,24 +32,40 @@ #include <linux/module.h> #include <linux/types.h> #include <crypto/algapi.h> -#include <asm/crypto/blowfish.h> /* regular block cipher functions */ asmlinkage void __blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src, bool xor); -EXPORT_SYMBOL_GPL(__blowfish_enc_blk); - asmlinkage void blowfish_dec_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src); -EXPORT_SYMBOL_GPL(blowfish_dec_blk); /* 4-way parallel cipher functions */ asmlinkage void __blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst, const u8 *src, bool xor); -EXPORT_SYMBOL_GPL(__blowfish_enc_blk_4way); - asmlinkage void blowfish_dec_blk_4way(struct bf_ctx *ctx, u8 *dst, const u8 *src); -EXPORT_SYMBOL_GPL(blowfish_dec_blk_4way); + +static inline void blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src) +{ + __blowfish_enc_blk(ctx, dst, src, false); +} + +static inline void blowfish_enc_blk_xor(struct bf_ctx *ctx, u8 *dst, + const u8 *src) +{ + __blowfish_enc_blk(ctx, dst, src, true); +} + +static inline void blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst, + const u8 *src) +{ + __blowfish_enc_blk_4way(ctx, dst, src, false); +} + +static inline void blowfish_enc_blk_xor_4way(struct bf_ctx *ctx, u8 *dst, + const u8 *src) +{ + __blowfish_enc_blk_4way(ctx, dst, src, true); +} static void blowfish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S index 91a1878fcc3..0e0b8863a34 100644 --- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S +++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S @@ -51,16 +51,6 @@ #define ymm14_x xmm14 #define ymm15_x xmm15 -/* - * AES-NI instructions do not support ymmX registers, so we need splitting and - * merging. - */ -#define vaesenclast256(zero, yreg, tmp) \ - vextracti128 $1, yreg, tmp##_x; \ - vaesenclast zero##_x, yreg##_x, yreg##_x; \ - vaesenclast zero##_x, tmp##_x, tmp##_x; \ - vinserti128 $1, tmp##_x, yreg, yreg; - /********************************************************************** 32-way camellia **********************************************************************/ @@ -79,46 +69,70 @@ * S-function with AES subbytes \ */ \ vbroadcasti128 .Linv_shift_row, t4; \ - vpbroadcastb .L0f0f0f0f, t7; \ - vbroadcasti128 .Lpre_tf_lo_s1, t0; \ - vbroadcasti128 .Lpre_tf_hi_s1, t1; \ + vpbroadcastd .L0f0f0f0f, t7; \ + vbroadcasti128 .Lpre_tf_lo_s1, t5; \ + vbroadcasti128 .Lpre_tf_hi_s1, t6; \ + vbroadcasti128 .Lpre_tf_lo_s4, t2; \ + vbroadcasti128 .Lpre_tf_hi_s4, t3; \ \ /* AES inverse shift rows */ \ vpshufb t4, x0, x0; \ vpshufb t4, x7, x7; \ - vpshufb t4, x1, x1; \ - vpshufb t4, x4, x4; \ - vpshufb t4, x2, x2; \ - vpshufb t4, x5, x5; \ vpshufb t4, x3, x3; \ vpshufb t4, x6, x6; \ + vpshufb t4, x2, x2; \ + vpshufb t4, x5, x5; \ + vpshufb t4, x1, x1; \ + vpshufb t4, x4, x4; \ \ /* prefilter sboxes 1, 2 and 3 */ \ - vbroadcasti128 .Lpre_tf_lo_s4, t2; \ - vbroadcasti128 .Lpre_tf_hi_s4, t3; \ - filter_8bit(x0, t0, t1, t7, t6); \ - filter_8bit(x7, t0, t1, t7, t6); \ - filter_8bit(x1, t0, t1, t7, t6); \ - filter_8bit(x4, t0, t1, t7, t6); \ - filter_8bit(x2, t0, t1, t7, t6); \ - filter_8bit(x5, t0, t1, t7, t6); \ - \ /* prefilter sbox 4 */ \ + filter_8bit(x0, t5, t6, t7, t4); \ + filter_8bit(x7, t5, t6, t7, t4); \ + vextracti128 $1, x0, t0##_x; \ + vextracti128 $1, x7, t1##_x; \ + filter_8bit(x3, t2, t3, t7, t4); \ + filter_8bit(x6, t2, t3, t7, t4); \ + vextracti128 $1, x3, t3##_x; \ + vextracti128 $1, x6, t2##_x; \ + filter_8bit(x2, t5, t6, t7, t4); \ + filter_8bit(x5, t5, t6, t7, t4); \ + filter_8bit(x1, t5, t6, t7, t4); \ + filter_8bit(x4, t5, t6, t7, t4); \ + \ vpxor t4##_x, t4##_x, t4##_x; \ - filter_8bit(x3, t2, t3, t7, t6); \ - filter_8bit(x6, t2, t3, t7, t6); \ \ /* AES subbytes + AES shift rows */ \ + vextracti128 $1, x2, t6##_x; \ + vextracti128 $1, x5, t5##_x; \ + vaesenclast t4##_x, x0##_x, x0##_x; \ + vaesenclast t4##_x, t0##_x, t0##_x; \ + vinserti128 $1, t0##_x, x0, x0; \ + vaesenclast t4##_x, x7##_x, x7##_x; \ + vaesenclast t4##_x, t1##_x, t1##_x; \ + vinserti128 $1, t1##_x, x7, x7; \ + vaesenclast t4##_x, x3##_x, x3##_x; \ + vaesenclast t4##_x, t3##_x, t3##_x; \ + vinserti128 $1, t3##_x, x3, x3; \ + vaesenclast t4##_x, x6##_x, x6##_x; \ + vaesenclast t4##_x, t2##_x, t2##_x; \ + vinserti128 $1, t2##_x, x6, x6; \ + vextracti128 $1, x1, t3##_x; \ + vextracti128 $1, x4, t2##_x; \ vbroadcasti128 .Lpost_tf_lo_s1, t0; \ vbroadcasti128 .Lpost_tf_hi_s1, t1; \ - vaesenclast256(t4, x0, t5); \ - vaesenclast256(t4, x7, t5); \ - vaesenclast256(t4, x1, t5); \ - vaesenclast256(t4, x4, t5); \ - vaesenclast256(t4, x2, t5); \ - vaesenclast256(t4, x5, t5); \ - vaesenclast256(t4, x3, t5); \ - vaesenclast256(t4, x6, t5); \ + vaesenclast t4##_x, x2##_x, x2##_x; \ + vaesenclast t4##_x, t6##_x, t6##_x; \ + vinserti128 $1, t6##_x, x2, x2; \ + vaesenclast t4##_x, x5##_x, x5##_x; \ + vaesenclast t4##_x, t5##_x, t5##_x; \ + vinserti128 $1, t5##_x, x5, x5; \ + vaesenclast t4##_x, x1##_x, x1##_x; \ + vaesenclast t4##_x, t3##_x, t3##_x; \ + vinserti128 $1, t3##_x, x1, x1; \ + vaesenclast t4##_x, x4##_x, x4##_x; \ + vaesenclast t4##_x, t2##_x, t2##_x; \ + vinserti128 $1, t2##_x, x4, x4; \ \ /* postfilter sboxes 1 and 4 */ \ vbroadcasti128 .Lpost_tf_lo_s3, t2; \ @@ -139,22 +153,12 @@ /* postfilter sbox 2 */ \ filter_8bit(x1, t4, t5, t7, t2); \ filter_8bit(x4, t4, t5, t7, t2); \ + vpxor t7, t7, t7; \ \ vpsrldq $1, t0, t1; \ vpsrldq $2, t0, t2; \ + vpshufb t7, t1, t1; \ vpsrldq $3, t0, t3; \ - vpsrldq $4, t0, t4; \ - vpsrldq $5, t0, t5; \ - vpsrldq $6, t0, t6; \ - vpsrldq $7, t0, t7; \ - vpbroadcastb t0##_x, t0; \ - vpbroadcastb t1##_x, t1; \ - vpbroadcastb t2##_x, t2; \ - vpbroadcastb t3##_x, t3; \ - vpbroadcastb t4##_x, t4; \ - vpbroadcastb t6##_x, t6; \ - vpbroadcastb t5##_x, t5; \ - vpbroadcastb t7##_x, t7; \ \ /* P-function */ \ vpxor x5, x0, x0; \ @@ -162,11 +166,21 @@ vpxor x7, x2, x2; \ vpxor x4, x3, x3; \ \ + vpshufb t7, t2, t2; \ + vpsrldq $4, t0, t4; \ + vpshufb t7, t3, t3; \ + vpsrldq $5, t0, t5; \ + vpshufb t7, t4, t4; \ + \ vpxor x2, x4, x4; \ vpxor x3, x5, x5; \ vpxor x0, x6, x6; \ vpxor x1, x7, x7; \ \ + vpsrldq $6, t0, t6; \ + vpshufb t7, t5, t5; \ + vpshufb t7, t6, t6; \ + \ vpxor x7, x0, x0; \ vpxor x4, x1, x1; \ vpxor x5, x2, x2; \ @@ -179,12 +193,16 @@ \ /* Add key material and result to CD (x becomes new CD) */ \ \ - vpxor t7, x0, x0; \ - vpxor 4 * 32(mem_cd), x0, x0; \ - \ vpxor t6, x1, x1; \ vpxor 5 * 32(mem_cd), x1, x1; \ \ + vpsrldq $7, t0, t6; \ + vpshufb t7, t0, t0; \ + vpshufb t7, t6, t7; \ + \ + vpxor t7, x0, x0; \ + vpxor 4 * 32(mem_cd), x0, x0; \ + \ vpxor t5, x2, x2; \ vpxor 6 * 32(mem_cd), x2, x2; \ \ @@ -204,7 +222,7 @@ vpxor 3 * 32(mem_cd), x7, x7; /* - * Size optimization... with inlined roundsm16 binary would be over 5 times + * Size optimization... with inlined roundsm32 binary would be over 5 times * larger and would only marginally faster. */ .align 8 @@ -324,13 +342,13 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) */ \ vpbroadcastd kll, t0; /* only lowest 32-bit used */ \ vpxor tt0, tt0, tt0; \ - vpbroadcastb t0##_x, t3; \ + vpshufb tt0, t0, t3; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t2; \ + vpshufb tt0, t0, t2; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t1; \ + vpshufb tt0, t0, t1; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t0; \ + vpshufb tt0, t0, t0; \ \ vpand l0, t0, t0; \ vpand l1, t1, t1; \ @@ -340,6 +358,7 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \ \ vpxor l4, t0, l4; \ + vpbroadcastd krr, t0; /* only lowest 32-bit used */ \ vmovdqu l4, 4 * 32(l); \ vpxor l5, t1, l5; \ vmovdqu l5, 5 * 32(l); \ @@ -354,14 +373,13 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) * rl ^= t2; \ */ \ \ - vpbroadcastd krr, t0; /* only lowest 32-bit used */ \ - vpbroadcastb t0##_x, t3; \ + vpshufb tt0, t0, t3; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t2; \ + vpshufb tt0, t0, t2; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t1; \ + vpshufb tt0, t0, t1; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t0; \ + vpshufb tt0, t0, t0; \ \ vpor 4 * 32(r), t0, t0; \ vpor 5 * 32(r), t1, t1; \ @@ -373,6 +391,7 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) vpxor 2 * 32(r), t2, t2; \ vpxor 3 * 32(r), t3, t3; \ vmovdqu t0, 0 * 32(r); \ + vpbroadcastd krl, t0; /* only lowest 32-bit used */ \ vmovdqu t1, 1 * 32(r); \ vmovdqu t2, 2 * 32(r); \ vmovdqu t3, 3 * 32(r); \ @@ -382,14 +401,13 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) * t2 &= rl; \ * rr ^= rol32(t2, 1); \ */ \ - vpbroadcastd krl, t0; /* only lowest 32-bit used */ \ - vpbroadcastb t0##_x, t3; \ + vpshufb tt0, t0, t3; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t2; \ + vpshufb tt0, t0, t2; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t1; \ + vpshufb tt0, t0, t1; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t0; \ + vpshufb tt0, t0, t0; \ \ vpand 0 * 32(r), t0, t0; \ vpand 1 * 32(r), t1, t1; \ @@ -403,6 +421,7 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) vpxor 6 * 32(r), t2, t2; \ vpxor 7 * 32(r), t3, t3; \ vmovdqu t0, 4 * 32(r); \ + vpbroadcastd klr, t0; /* only lowest 32-bit used */ \ vmovdqu t1, 5 * 32(r); \ vmovdqu t2, 6 * 32(r); \ vmovdqu t3, 7 * 32(r); \ @@ -413,14 +432,13 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) * ll ^= t0; \ */ \ \ - vpbroadcastd klr, t0; /* only lowest 32-bit used */ \ - vpbroadcastb t0##_x, t3; \ + vpshufb tt0, t0, t3; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t2; \ + vpshufb tt0, t0, t2; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t1; \ + vpshufb tt0, t0, t1; \ vpsrldq $1, t0, t0; \ - vpbroadcastb t0##_x, t0; \ + vpshufb tt0, t0, t0; \ \ vpor l4, t0, t0; \ vpor l5, t1, t1; \ diff --git a/arch/x86/crypto/crct10dif-pcl-asm_64.S b/arch/x86/crypto/crct10dif-pcl-asm_64.S new file mode 100644 index 00000000000..35e97569d05 --- /dev/null +++ b/arch/x86/crypto/crct10dif-pcl-asm_64.S @@ -0,0 +1,643 @@ +######################################################################## +# Implement fast CRC-T10DIF computation with SSE and PCLMULQDQ instructions +# +# Copyright (c) 2013, Intel Corporation +# +# 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> +# +# 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. +######################################################################## +# Function API: +# UINT16 crc_t10dif_pcl( +# UINT16 init_crc, //initial CRC value, 16 bits +# const unsigned char *buf, //buffer pointer to calculate CRC on +# UINT64 len //buffer length in bytes (64-bit data) +# ); +# +# Reference paper titled "Fast CRC Computation for Generic +# Polynomials Using PCLMULQDQ Instruction" +# URL: http://www.intel.com/content/dam/www/public/us/en/documents +# /white-papers/fast-crc-computation-generic-polynomials-pclmulqdq-paper.pdf +# +# + +#include <linux/linkage.h> + +.text + +#define arg1 %rdi +#define arg2 %rsi +#define arg3 %rdx + +#define arg1_low32 %edi + +ENTRY(crc_t10dif_pcl) +.align 16 + + # adjust the 16-bit initial_crc value, scale it to 32 bits + shl $16, arg1_low32 + + # Allocate Stack Space + mov %rsp, %rcx + sub $16*2, %rsp + # align stack to 16 byte boundary + and $~(0x10 - 1), %rsp + + # check if smaller than 256 + cmp $256, arg3 + + # for sizes less than 128, we can't fold 64B at a time... + jl _less_than_128 + + + # load the initial crc value + movd arg1_low32, %xmm10 # initial crc + + # crc value does not need to be byte-reflected, but it needs + # to be moved to the high part of the register. + # because data will be byte-reflected and will align with + # initial crc at correct place. + pslldq $12, %xmm10 + + movdqa SHUF_MASK(%rip), %xmm11 + # receive the initial 64B data, xor the initial crc value + movdqu 16*0(arg2), %xmm0 + movdqu 16*1(arg2), %xmm1 + movdqu 16*2(arg2), %xmm2 + movdqu 16*3(arg2), %xmm3 + movdqu 16*4(arg2), %xmm4 + movdqu 16*5(arg2), %xmm5 + movdqu 16*6(arg2), %xmm6 + movdqu 16*7(arg2), %xmm7 + + pshufb %xmm11, %xmm0 + # XOR the initial_crc value + pxor %xmm10, %xmm0 + pshufb %xmm11, %xmm1 + pshufb %xmm11, %xmm2 + pshufb %xmm11, %xmm3 + pshufb %xmm11, %xmm4 + pshufb %xmm11, %xmm5 + pshufb %xmm11, %xmm6 + pshufb %xmm11, %xmm7 + + movdqa rk3(%rip), %xmm10 #xmm10 has rk3 and rk4 + #imm value of pclmulqdq instruction + #will determine which constant to use + + ################################################################# + # we subtract 256 instead of 128 to save one instruction from the loop + sub $256, arg3 + + # at this section of the code, there is 64*x+y (0<=y<64) bytes of + # buffer. The _fold_64_B_loop will fold 64B at a time + # until we have 64+y Bytes of buffer + + + # fold 64B at a time. This section of the code folds 4 xmm + # registers in parallel +_fold_64_B_loop: + + # update the buffer pointer + add $128, arg2 # buf += 64# + + movdqu 16*0(arg2), %xmm9 + movdqu 16*1(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm0, %xmm8 + movdqa %xmm1, %xmm13 + pclmulqdq $0x0 , %xmm10, %xmm0 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0 , %xmm10, %xmm1 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm0 + xorps %xmm8 , %xmm0 + pxor %xmm12, %xmm1 + xorps %xmm13, %xmm1 + + movdqu 16*2(arg2), %xmm9 + movdqu 16*3(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm2, %xmm8 + movdqa %xmm3, %xmm13 + pclmulqdq $0x0, %xmm10, %xmm2 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0, %xmm10, %xmm3 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm2 + xorps %xmm8 , %xmm2 + pxor %xmm12, %xmm3 + xorps %xmm13, %xmm3 + + movdqu 16*4(arg2), %xmm9 + movdqu 16*5(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm4, %xmm8 + movdqa %xmm5, %xmm13 + pclmulqdq $0x0, %xmm10, %xmm4 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0, %xmm10, %xmm5 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm4 + xorps %xmm8 , %xmm4 + pxor %xmm12, %xmm5 + xorps %xmm13, %xmm5 + + movdqu 16*6(arg2), %xmm9 + movdqu 16*7(arg2), %xmm12 + pshufb %xmm11, %xmm9 + pshufb %xmm11, %xmm12 + movdqa %xmm6 , %xmm8 + movdqa %xmm7 , %xmm13 + pclmulqdq $0x0 , %xmm10, %xmm6 + pclmulqdq $0x11, %xmm10, %xmm8 + pclmulqdq $0x0 , %xmm10, %xmm7 + pclmulqdq $0x11, %xmm10, %xmm13 + pxor %xmm9 , %xmm6 + xorps %xmm8 , %xmm6 + pxor %xmm12, %xmm7 + xorps %xmm13, %xmm7 + + sub $128, arg3 + + # check if there is another 64B in the buffer to be able to fold + jge _fold_64_B_loop + ################################################################## + + + add $128, arg2 + # at this point, the buffer pointer is pointing at the last y Bytes + # of the buffer the 64B of folded data is in 4 of the xmm + # registers: xmm0, xmm1, xmm2, xmm3 + + + # fold the 8 xmm registers to 1 xmm register with different constants + + movdqa rk9(%rip), %xmm10 + movdqa %xmm0, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm0 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm0, %xmm7 + + movdqa rk11(%rip), %xmm10 + movdqa %xmm1, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm1 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm1, %xmm7 + + movdqa rk13(%rip), %xmm10 + movdqa %xmm2, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm2 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm2, %xmm7 + + movdqa rk15(%rip), %xmm10 + movdqa %xmm3, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm3 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm3, %xmm7 + + movdqa rk17(%rip), %xmm10 + movdqa %xmm4, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm4 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm4, %xmm7 + + movdqa rk19(%rip), %xmm10 + movdqa %xmm5, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm5 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + xorps %xmm5, %xmm7 + + movdqa rk1(%rip), %xmm10 #xmm10 has rk1 and rk2 + #imm value of pclmulqdq instruction + #will determine which constant to use + movdqa %xmm6, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm6 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm6, %xmm7 + + + # instead of 64, we add 48 to the loop counter to save 1 instruction + # from the loop instead of a cmp instruction, we use the negative + # flag with the jl instruction + add $128-16, arg3 + jl _final_reduction_for_128 + + # now we have 16+y bytes left to reduce. 16 Bytes is in register xmm7 + # and the rest is in memory. We can fold 16 bytes at a time if y>=16 + # continue folding 16B at a time + +_16B_reduction_loop: + movdqa %xmm7, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm7 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + movdqu (arg2), %xmm0 + pshufb %xmm11, %xmm0 + pxor %xmm0 , %xmm7 + add $16, arg2 + sub $16, arg3 + # instead of a cmp instruction, we utilize the flags with the + # jge instruction equivalent of: cmp arg3, 16-16 + # check if there is any more 16B in the buffer to be able to fold + jge _16B_reduction_loop + + #now we have 16+z bytes left to reduce, where 0<= z < 16. + #first, we reduce the data in the xmm7 register + + +_final_reduction_for_128: + # check if any more data to fold. If not, compute the CRC of + # the final 128 bits + add $16, arg3 + je _128_done + + # here we are getting data that is less than 16 bytes. + # since we know that there was data before the pointer, we can + # offset the input pointer before the actual point, to receive + # exactly 16 bytes. after that the registers need to be adjusted. +_get_last_two_xmms: + movdqa %xmm7, %xmm2 + + movdqu -16(arg2, arg3), %xmm1 + pshufb %xmm11, %xmm1 + + # get rid of the extra data that was loaded before + # load the shift constant + lea pshufb_shf_table+16(%rip), %rax + sub arg3, %rax + movdqu (%rax), %xmm0 + + # shift xmm2 to the left by arg3 bytes + pshufb %xmm0, %xmm2 + + # shift xmm7 to the right by 16-arg3 bytes + pxor mask1(%rip), %xmm0 + pshufb %xmm0, %xmm7 + pblendvb %xmm2, %xmm1 #xmm0 is implicit + + # fold 16 Bytes + movdqa %xmm1, %xmm2 + movdqa %xmm7, %xmm8 + pclmulqdq $0x11, %xmm10, %xmm7 + pclmulqdq $0x0 , %xmm10, %xmm8 + pxor %xmm8, %xmm7 + pxor %xmm2, %xmm7 + +_128_done: + # compute crc of a 128-bit value + movdqa rk5(%rip), %xmm10 # rk5 and rk6 in xmm10 + movdqa %xmm7, %xmm0 + + #64b fold + pclmulqdq $0x1, %xmm10, %xmm7 + pslldq $8 , %xmm0 + pxor %xmm0, %xmm7 + + #32b fold + movdqa %xmm7, %xmm0 + + pand mask2(%rip), %xmm0 + + psrldq $12, %xmm7 + pclmulqdq $0x10, %xmm10, %xmm7 + pxor %xmm0, %xmm7 + + #barrett reduction +_barrett: + movdqa rk7(%rip), %xmm10 # rk7 and rk8 in xmm10 + movdqa %xmm7, %xmm0 + pclmulqdq $0x01, %xmm10, %xmm7 + pslldq $4, %xmm7 + pclmulqdq $0x11, %xmm10, %xmm7 + + pslldq $4, %xmm7 + pxor %xmm0, %xmm7 + pextrd $1, %xmm7, %eax + +_cleanup: + # scale the result back to 16 bits + shr $16, %eax + mov %rcx, %rsp + ret + +######################################################################## + +.align 16 +_less_than_128: + + # check if there is enough buffer to be able to fold 16B at a time + cmp $32, arg3 + jl _less_than_32 + movdqa SHUF_MASK(%rip), %xmm11 + + # now if there is, load the constants + movdqa rk1(%rip), %xmm10 # rk1 and rk2 in xmm10 + + movd arg1_low32, %xmm0 # get the initial crc value + pslldq $12, %xmm0 # align it to its correct place + movdqu (arg2), %xmm7 # load the plaintext + pshufb %xmm11, %xmm7 # byte-reflect the plaintext + pxor %xmm0, %xmm7 + + + # update the buffer pointer + add $16, arg2 + + # update the counter. subtract 32 instead of 16 to save one + # instruction from the loop + sub $32, arg3 + + jmp _16B_reduction_loop + + +.align 16 +_less_than_32: + # mov initial crc to the return value. this is necessary for + # zero-length buffers. + mov arg1_low32, %eax + test arg3, arg3 + je _cleanup + + movdqa SHUF_MASK(%rip), %xmm11 + + movd arg1_low32, %xmm0 # get the initial crc value + pslldq $12, %xmm0 # align it to its correct place + + cmp $16, arg3 + je _exact_16_left + jl _less_than_16_left + + movdqu (arg2), %xmm7 # load the plaintext + pshufb %xmm11, %xmm7 # byte-reflect the plaintext + pxor %xmm0 , %xmm7 # xor the initial crc value + add $16, arg2 + sub $16, arg3 + movdqa rk1(%rip), %xmm10 # rk1 and rk2 in xmm10 + jmp _get_last_two_xmms + + +.align 16 +_less_than_16_left: + # use stack space to load data less than 16 bytes, zero-out + # the 16B in memory first. + + pxor %xmm1, %xmm1 + mov %rsp, %r11 + movdqa %xmm1, (%r11) + + cmp $4, arg3 + jl _only_less_than_4 + + # backup the counter value + mov arg3, %r9 + cmp $8, arg3 + jl _less_than_8_left + + # load 8 Bytes + mov (arg2), %rax + mov %rax, (%r11) + add $8, %r11 + sub $8, arg3 + add $8, arg2 +_less_than_8_left: + + cmp $4, arg3 + jl _less_than_4_left + + # load 4 Bytes + mov (arg2), %eax + mov %eax, (%r11) + add $4, %r11 + sub $4, arg3 + add $4, arg2 +_less_than_4_left: + + cmp $2, arg3 + jl _less_than_2_left + + # load 2 Bytes + mov (arg2), %ax + mov %ax, (%r11) + add $2, %r11 + sub $2, arg3 + add $2, arg2 +_less_than_2_left: + cmp $1, arg3 + jl _zero_left + + # load 1 Byte + mov (arg2), %al + mov %al, (%r11) +_zero_left: + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + # shl r9, 4 + lea pshufb_shf_table+16(%rip), %rax + sub %r9, %rax + movdqu (%rax), %xmm0 + pxor mask1(%rip), %xmm0 + + pshufb %xmm0, %xmm7 + jmp _128_done + +.align 16 +_exact_16_left: + movdqu (arg2), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + jmp _128_done + +_only_less_than_4: + cmp $3, arg3 + jl _only_less_than_3 + + # load 3 Bytes + mov (arg2), %al + mov %al, (%r11) + + mov 1(arg2), %al + mov %al, 1(%r11) + + mov 2(arg2), %al + mov %al, 2(%r11) + + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + psrldq $5, %xmm7 + + jmp _barrett +_only_less_than_3: + cmp $2, arg3 + jl _only_less_than_2 + + # load 2 Bytes + mov (arg2), %al + mov %al, (%r11) + + mov 1(arg2), %al + mov %al, 1(%r11) + + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + psrldq $6, %xmm7 + + jmp _barrett +_only_less_than_2: + + # load 1 Byte + mov (arg2), %al + mov %al, (%r11) + + movdqa (%rsp), %xmm7 + pshufb %xmm11, %xmm7 + pxor %xmm0 , %xmm7 # xor the initial crc value + + psrldq $7, %xmm7 + + jmp _barrett + +ENDPROC(crc_t10dif_pcl) + +.data + +# precomputed constants +# these constants are precomputed from the poly: +# 0x8bb70000 (0x8bb7 scaled to 32 bits) +.align 16 +# Q = 0x18BB70000 +# rk1 = 2^(32*3) mod Q << 32 +# rk2 = 2^(32*5) mod Q << 32 +# rk3 = 2^(32*15) mod Q << 32 +# rk4 = 2^(32*17) mod Q << 32 +# rk5 = 2^(32*3) mod Q << 32 +# rk6 = 2^(32*2) mod Q << 32 +# rk7 = floor(2^64/Q) +# rk8 = Q +rk1: +.quad 0x2d56000000000000 +rk2: +.quad 0x06df000000000000 +rk3: +.quad 0x9d9d000000000000 +rk4: +.quad 0x7cf5000000000000 +rk5: +.quad 0x2d56000000000000 +rk6: +.quad 0x1368000000000000 +rk7: +.quad 0x00000001f65a57f8 +rk8: +.quad 0x000000018bb70000 + +rk9: +.quad 0xceae000000000000 +rk10: +.quad 0xbfd6000000000000 +rk11: +.quad 0x1e16000000000000 +rk12: +.quad 0x713c000000000000 +rk13: +.quad 0xf7f9000000000000 +rk14: +.quad 0x80a6000000000000 +rk15: +.quad 0x044c000000000000 +rk16: +.quad 0xe658000000000000 +rk17: +.quad 0xad18000000000000 +rk18: +.quad 0xa497000000000000 +rk19: +.quad 0x6ee3000000000000 +rk20: +.quad 0xe7b5000000000000 + + + +mask1: +.octa 0x80808080808080808080808080808080 +mask2: +.octa 0x00000000FFFFFFFFFFFFFFFFFFFFFFFF + +SHUF_MASK: +.octa 0x000102030405060708090A0B0C0D0E0F + +pshufb_shf_table: +# use these values for shift constants for the pshufb instruction +# different alignments result in values as shown: +# DDQ 0x008f8e8d8c8b8a898887868584838281 # shl 15 (16-1) / shr1 +# DDQ 0x01008f8e8d8c8b8a8988878685848382 # shl 14 (16-3) / shr2 +# DDQ 0x0201008f8e8d8c8b8a89888786858483 # shl 13 (16-4) / shr3 +# DDQ 0x030201008f8e8d8c8b8a898887868584 # shl 12 (16-4) / shr4 +# DDQ 0x04030201008f8e8d8c8b8a8988878685 # shl 11 (16-5) / shr5 +# DDQ 0x0504030201008f8e8d8c8b8a89888786 # shl 10 (16-6) / shr6 +# DDQ 0x060504030201008f8e8d8c8b8a898887 # shl 9 (16-7) / shr7 +# DDQ 0x07060504030201008f8e8d8c8b8a8988 # shl 8 (16-8) / shr8 +# DDQ 0x0807060504030201008f8e8d8c8b8a89 # shl 7 (16-9) / shr9 +# DDQ 0x090807060504030201008f8e8d8c8b8a # shl 6 (16-10) / shr10 +# DDQ 0x0a090807060504030201008f8e8d8c8b # shl 5 (16-11) / shr11 +# DDQ 0x0b0a090807060504030201008f8e8d8c # shl 4 (16-12) / shr12 +# DDQ 0x0c0b0a090807060504030201008f8e8d # shl 3 (16-13) / shr13 +# DDQ 0x0d0c0b0a090807060504030201008f8e # shl 2 (16-14) / shr14 +# DDQ 0x0e0d0c0b0a090807060504030201008f # shl 1 (16-15) / shr15 +.octa 0x8f8e8d8c8b8a89888786858483828100 +.octa 0x000e0d0c0b0a09080706050403020100 diff --git a/arch/x86/crypto/crct10dif-pclmul_glue.c b/arch/x86/crypto/crct10dif-pclmul_glue.c new file mode 100644 index 00000000000..7845d7fd54c --- /dev/null +++ b/arch/x86/crypto/crct10dif-pclmul_glue.c @@ -0,0 +1,151 @@ +/* + * Cryptographic API. + * + * T10 Data Integrity Field CRC16 Crypto Transform using PCLMULQDQ Instructions + * + * Copyright (C) 2013 Intel Corporation + * Author: Tim Chen <tim.c.chen@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/crc-t10dif.h> +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <asm/i387.h> +#include <asm/cpufeature.h> +#include <asm/cpu_device_id.h> + +asmlinkage __u16 crc_t10dif_pcl(__u16 crc, const unsigned char *buf, + size_t len); + +struct chksum_desc_ctx { + __u16 crc; +}; + +/* + * Steps through buffer one byte at at time, calculates reflected + * crc using table. + */ + +static int chksum_init(struct shash_desc *desc) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + ctx->crc = 0; + + return 0; +} + +static int chksum_update(struct shash_desc *desc, const u8 *data, + unsigned int length) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + if (irq_fpu_usable()) { + kernel_fpu_begin(); + ctx->crc = crc_t10dif_pcl(ctx->crc, data, length); + kernel_fpu_end(); + } else + ctx->crc = crc_t10dif_generic(ctx->crc, data, length); + return 0; +} + +static int chksum_final(struct shash_desc *desc, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + *(__u16 *)out = ctx->crc; + return 0; +} + +static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len, + u8 *out) +{ + if (irq_fpu_usable()) { + kernel_fpu_begin(); + *(__u16 *)out = crc_t10dif_pcl(*crcp, data, len); + kernel_fpu_end(); + } else + *(__u16 *)out = crc_t10dif_generic(*crcp, data, len); + return 0; +} + +static int chksum_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + return __chksum_finup(&ctx->crc, data, len, out); +} + +static int chksum_digest(struct shash_desc *desc, const u8 *data, + unsigned int length, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + return __chksum_finup(&ctx->crc, data, length, out); +} + +static struct shash_alg alg = { + .digestsize = CRC_T10DIF_DIGEST_SIZE, + .init = chksum_init, + .update = chksum_update, + .final = chksum_final, + .finup = chksum_finup, + .digest = chksum_digest, + .descsize = sizeof(struct chksum_desc_ctx), + .base = { + .cra_name = "crct10dif", + .cra_driver_name = "crct10dif-pclmul", + .cra_priority = 200, + .cra_blocksize = CRC_T10DIF_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static const struct x86_cpu_id crct10dif_cpu_id[] = { + X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), + {} +}; +MODULE_DEVICE_TABLE(x86cpu, crct10dif_cpu_id); + +static int __init crct10dif_intel_mod_init(void) +{ + if (!x86_match_cpu(crct10dif_cpu_id)) + return -ENODEV; + + return crypto_register_shash(&alg); +} + +static void __exit crct10dif_intel_mod_fini(void) +{ + crypto_unregister_shash(&alg); +} + +module_init(crct10dif_intel_mod_init); +module_exit(crct10dif_intel_mod_fini); + +MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>"); +MODULE_DESCRIPTION("T10 DIF CRC calculation accelerated with PCLMULQDQ."); +MODULE_LICENSE("GPL"); + +MODULE_ALIAS("crct10dif"); +MODULE_ALIAS("crct10dif-pclmul"); diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c index 597d4da6965..50226c4b86e 100644 --- a/arch/x86/crypto/sha256_ssse3_glue.c +++ b/arch/x86/crypto/sha256_ssse3_glue.c @@ -187,7 +187,36 @@ static int sha256_ssse3_import(struct shash_desc *desc, const void *in) return 0; } -static struct shash_alg alg = { +static int sha224_ssse3_init(struct shash_desc *desc) +{ + struct sha256_state *sctx = shash_desc_ctx(desc); + + sctx->state[0] = SHA224_H0; + sctx->state[1] = SHA224_H1; + sctx->state[2] = SHA224_H2; + sctx->state[3] = SHA224_H3; + sctx->state[4] = SHA224_H4; + sctx->state[5] = SHA224_H5; + sctx->state[6] = SHA224_H6; + sctx->state[7] = SHA224_H7; + sctx->count = 0; + + return 0; +} + +static int sha224_ssse3_final(struct shash_desc *desc, u8 *hash) +{ + u8 D[SHA256_DIGEST_SIZE]; + + sha256_ssse3_final(desc, D); + + memcpy(hash, D, SHA224_DIGEST_SIZE); + memset(D, 0, SHA256_DIGEST_SIZE); + + return 0; +} + +static struct shash_alg algs[] = { { .digestsize = SHA256_DIGEST_SIZE, .init = sha256_ssse3_init, .update = sha256_ssse3_update, @@ -204,7 +233,24 @@ static struct shash_alg alg = { .cra_blocksize = SHA256_BLOCK_SIZE, .cra_module = THIS_MODULE, } -}; +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_ssse3_init, + .update = sha256_ssse3_update, + .final = sha224_ssse3_final, + .export = sha256_ssse3_export, + .import = sha256_ssse3_import, + .descsize = sizeof(struct sha256_state), + .statesize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-ssse3", + .cra_priority = 150, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; #ifdef CONFIG_AS_AVX static bool __init avx_usable(void) @@ -227,7 +273,7 @@ static bool __init avx_usable(void) static int __init sha256_ssse3_mod_init(void) { - /* test for SSE3 first */ + /* test for SSSE3 first */ if (cpu_has_ssse3) sha256_transform_asm = sha256_transform_ssse3; @@ -254,7 +300,7 @@ static int __init sha256_ssse3_mod_init(void) else #endif pr_info("Using SSSE3 optimized SHA-256 implementation\n"); - return crypto_register_shash(&alg); + return crypto_register_shashes(algs, ARRAY_SIZE(algs)); } pr_info("Neither AVX nor SSSE3 is available/usable.\n"); @@ -263,7 +309,7 @@ static int __init sha256_ssse3_mod_init(void) static void __exit sha256_ssse3_mod_fini(void) { - crypto_unregister_shash(&alg); + crypto_unregister_shashes(algs, ARRAY_SIZE(algs)); } module_init(sha256_ssse3_mod_init); @@ -273,3 +319,4 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, Supplemental SSE3 accelerated"); MODULE_ALIAS("sha256"); +MODULE_ALIAS("sha384"); diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c index 6cbd8df348d..f30cd10293f 100644 --- a/arch/x86/crypto/sha512_ssse3_glue.c +++ b/arch/x86/crypto/sha512_ssse3_glue.c @@ -194,7 +194,37 @@ static int sha512_ssse3_import(struct shash_desc *desc, const void *in) return 0; } -static struct shash_alg alg = { +static int sha384_ssse3_init(struct shash_desc *desc) +{ + struct sha512_state *sctx = shash_desc_ctx(desc); + + sctx->state[0] = SHA384_H0; + sctx->state[1] = SHA384_H1; + sctx->state[2] = SHA384_H2; + sctx->state[3] = SHA384_H3; + sctx->state[4] = SHA384_H4; + sctx->state[5] = SHA384_H5; + sctx->state[6] = SHA384_H6; + sctx->state[7] = SHA384_H7; + + sctx->count[0] = sctx->count[1] = 0; + + return 0; +} + +static int sha384_ssse3_final(struct shash_desc *desc, u8 *hash) +{ + u8 D[SHA512_DIGEST_SIZE]; + + sha512_ssse3_final(desc, D); + + memcpy(hash, D, SHA384_DIGEST_SIZE); + memset(D, 0, SHA512_DIGEST_SIZE); + + return 0; +} + +static struct shash_alg algs[] = { { .digestsize = SHA512_DIGEST_SIZE, .init = sha512_ssse3_init, .update = sha512_ssse3_update, @@ -211,7 +241,24 @@ static struct shash_alg alg = { .cra_blocksize = SHA512_BLOCK_SIZE, .cra_module = THIS_MODULE, } -}; +}, { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_ssse3_init, + .update = sha512_ssse3_update, + .final = sha384_ssse3_final, + .export = sha512_ssse3_export, + .import = sha512_ssse3_import, + .descsize = sizeof(struct sha512_state), + .statesize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha384", + .cra_driver_name = "sha384-ssse3", + .cra_priority = 150, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA384_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; #ifdef CONFIG_AS_AVX static bool __init avx_usable(void) @@ -234,7 +281,7 @@ static bool __init avx_usable(void) static int __init sha512_ssse3_mod_init(void) { - /* test for SSE3 first */ + /* test for SSSE3 first */ if (cpu_has_ssse3) sha512_transform_asm = sha512_transform_ssse3; @@ -261,7 +308,7 @@ static int __init sha512_ssse3_mod_init(void) else #endif pr_info("Using SSSE3 optimized SHA-512 implementation\n"); - return crypto_register_shash(&alg); + return crypto_register_shashes(algs, ARRAY_SIZE(algs)); } pr_info("Neither AVX nor SSSE3 is available/usable.\n"); @@ -270,7 +317,7 @@ static int __init sha512_ssse3_mod_init(void) static void __exit sha512_ssse3_mod_fini(void) { - crypto_unregister_shash(&alg); + crypto_unregister_shashes(algs, ARRAY_SIZE(algs)); } module_init(sha512_ssse3_mod_init); @@ -280,3 +327,4 @@ MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm, Supplemental SSE3 accelerated"); MODULE_ALIAS("sha512"); +MODULE_ALIAS("sha384"); diff --git a/arch/x86/crypto/twofish-avx2-asm_64.S b/arch/x86/crypto/twofish-avx2-asm_64.S deleted file mode 100644 index e1a83b9cd38..00000000000 --- a/arch/x86/crypto/twofish-avx2-asm_64.S +++ /dev/null @@ -1,600 +0,0 @@ -/* - * x86_64/AVX2 assembler optimized version of Twofish - * - * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - */ - -#include <linux/linkage.h> -#include "glue_helper-asm-avx2.S" - -.file "twofish-avx2-asm_64.S" - -.data -.align 16 - -.Lvpshufb_mask0: -.long 0x80808000 -.long 0x80808004 -.long 0x80808008 -.long 0x8080800c - -.Lbswap128_mask: - .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 -.Lxts_gf128mul_and_shl1_mask_0: - .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 -.Lxts_gf128mul_and_shl1_mask_1: - .byte 0x0e, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0 - -.text - -/* structure of crypto context */ -#define s0 0 -#define s1 1024 -#define s2 2048 -#define s3 3072 -#define w 4096 -#define k 4128 - -/* register macros */ -#define CTX %rdi - -#define RS0 CTX -#define RS1 %r8 -#define RS2 %r9 -#define RS3 %r10 -#define RK %r11 -#define RW %rax -#define RROUND %r12 -#define RROUNDd %r12d - -#define RA0 %ymm8 -#define RB0 %ymm9 -#define RC0 %ymm10 -#define RD0 %ymm11 -#define RA1 %ymm12 -#define RB1 %ymm13 -#define RC1 %ymm14 -#define RD1 %ymm15 - -/* temp regs */ -#define RX0 %ymm0 -#define RY0 %ymm1 -#define RX1 %ymm2 -#define RY1 %ymm3 -#define RT0 %ymm4 -#define RIDX %ymm5 - -#define RX0x %xmm0 -#define RY0x %xmm1 -#define RX1x %xmm2 -#define RY1x %xmm3 -#define RT0x %xmm4 - -/* vpgatherdd mask and '-1' */ -#define RNOT %ymm6 - -/* byte mask, (-1 >> 24) */ -#define RBYTE %ymm7 - -/********************************************************************** - 16-way AVX2 twofish - **********************************************************************/ -#define init_round_constants() \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpsrld $24, RNOT, RBYTE; \ - leaq k(CTX), RK; \ - leaq w(CTX), RW; \ - leaq s1(CTX), RS1; \ - leaq s2(CTX), RS2; \ - leaq s3(CTX), RS3; \ - -#define g16(ab, rs0, rs1, rs2, rs3, xy) \ - vpand RBYTE, ab ## 0, RIDX; \ - vpgatherdd RNOT, (rs0, RIDX, 4), xy ## 0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - \ - vpand RBYTE, ab ## 1, RIDX; \ - vpgatherdd RNOT, (rs0, RIDX, 4), xy ## 1; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - \ - vpsrld $8, ab ## 0, RIDX; \ - vpand RBYTE, RIDX, RIDX; \ - vpgatherdd RNOT, (rs1, RIDX, 4), RT0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpxor RT0, xy ## 0, xy ## 0; \ - \ - vpsrld $8, ab ## 1, RIDX; \ - vpand RBYTE, RIDX, RIDX; \ - vpgatherdd RNOT, (rs1, RIDX, 4), RT0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpxor RT0, xy ## 1, xy ## 1; \ - \ - vpsrld $16, ab ## 0, RIDX; \ - vpand RBYTE, RIDX, RIDX; \ - vpgatherdd RNOT, (rs2, RIDX, 4), RT0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpxor RT0, xy ## 0, xy ## 0; \ - \ - vpsrld $16, ab ## 1, RIDX; \ - vpand RBYTE, RIDX, RIDX; \ - vpgatherdd RNOT, (rs2, RIDX, 4), RT0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpxor RT0, xy ## 1, xy ## 1; \ - \ - vpsrld $24, ab ## 0, RIDX; \ - vpgatherdd RNOT, (rs3, RIDX, 4), RT0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpxor RT0, xy ## 0, xy ## 0; \ - \ - vpsrld $24, ab ## 1, RIDX; \ - vpgatherdd RNOT, (rs3, RIDX, 4), RT0; \ - vpcmpeqd RNOT, RNOT, RNOT; \ - vpxor RT0, xy ## 1, xy ## 1; - -#define g1_16(a, x) \ - g16(a, RS0, RS1, RS2, RS3, x); - -#define g2_16(b, y) \ - g16(b, RS1, RS2, RS3, RS0, y); - -#define encrypt_round_end16(a, b, c, d, nk) \ - vpaddd RY0, RX0, RX0; \ - vpaddd RX0, RY0, RY0; \ - vpbroadcastd nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RX0, RX0; \ - vpbroadcastd 4+nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RY0, RY0; \ - \ - vpxor RY0, d ## 0, d ## 0; \ - \ - vpxor RX0, c ## 0, c ## 0; \ - vpsrld $1, c ## 0, RT0; \ - vpslld $31, c ## 0, c ## 0; \ - vpor RT0, c ## 0, c ## 0; \ - \ - vpaddd RY1, RX1, RX1; \ - vpaddd RX1, RY1, RY1; \ - vpbroadcastd nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RX1, RX1; \ - vpbroadcastd 4+nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RY1, RY1; \ - \ - vpxor RY1, d ## 1, d ## 1; \ - \ - vpxor RX1, c ## 1, c ## 1; \ - vpsrld $1, c ## 1, RT0; \ - vpslld $31, c ## 1, c ## 1; \ - vpor RT0, c ## 1, c ## 1; \ - -#define encrypt_round16(a, b, c, d, nk) \ - g2_16(b, RY); \ - \ - vpslld $1, b ## 0, RT0; \ - vpsrld $31, b ## 0, b ## 0; \ - vpor RT0, b ## 0, b ## 0; \ - \ - vpslld $1, b ## 1, RT0; \ - vpsrld $31, b ## 1, b ## 1; \ - vpor RT0, b ## 1, b ## 1; \ - \ - g1_16(a, RX); \ - \ - encrypt_round_end16(a, b, c, d, nk); - -#define encrypt_round_first16(a, b, c, d, nk) \ - vpslld $1, d ## 0, RT0; \ - vpsrld $31, d ## 0, d ## 0; \ - vpor RT0, d ## 0, d ## 0; \ - \ - vpslld $1, d ## 1, RT0; \ - vpsrld $31, d ## 1, d ## 1; \ - vpor RT0, d ## 1, d ## 1; \ - \ - encrypt_round16(a, b, c, d, nk); - -#define encrypt_round_last16(a, b, c, d, nk) \ - g2_16(b, RY); \ - \ - g1_16(a, RX); \ - \ - encrypt_round_end16(a, b, c, d, nk); - -#define decrypt_round_end16(a, b, c, d, nk) \ - vpaddd RY0, RX0, RX0; \ - vpaddd RX0, RY0, RY0; \ - vpbroadcastd nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RX0, RX0; \ - vpbroadcastd 4+nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RY0, RY0; \ - \ - vpxor RX0, c ## 0, c ## 0; \ - \ - vpxor RY0, d ## 0, d ## 0; \ - vpsrld $1, d ## 0, RT0; \ - vpslld $31, d ## 0, d ## 0; \ - vpor RT0, d ## 0, d ## 0; \ - \ - vpaddd RY1, RX1, RX1; \ - vpaddd RX1, RY1, RY1; \ - vpbroadcastd nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RX1, RX1; \ - vpbroadcastd 4+nk(RK,RROUND,8), RT0; \ - vpaddd RT0, RY1, RY1; \ - \ - vpxor RX1, c ## 1, c ## 1; \ - \ - vpxor RY1, d ## 1, d ## 1; \ - vpsrld $1, d ## 1, RT0; \ - vpslld $31, d ## 1, d ## 1; \ - vpor RT0, d ## 1, d ## 1; - -#define decrypt_round16(a, b, c, d, nk) \ - g1_16(a, RX); \ - \ - vpslld $1, a ## 0, RT0; \ - vpsrld $31, a ## 0, a ## 0; \ - vpor RT0, a ## 0, a ## 0; \ - \ - vpslld $1, a ## 1, RT0; \ - vpsrld $31, a ## 1, a ## 1; \ - vpor RT0, a ## 1, a ## 1; \ - \ - g2_16(b, RY); \ - \ - decrypt_round_end16(a, b, c, d, nk); - -#define decrypt_round_first16(a, b, c, d, nk) \ - vpslld $1, c ## 0, RT0; \ - vpsrld $31, c ## 0, c ## 0; \ - vpor RT0, c ## 0, c ## 0; \ - \ - vpslld $1, c ## 1, RT0; \ - vpsrld $31, c ## 1, c ## 1; \ - vpor RT0, c ## 1, c ## 1; \ - \ - decrypt_round16(a, b, c, d, nk) - -#define decrypt_round_last16(a, b, c, d, nk) \ - g1_16(a, RX); \ - \ - g2_16(b, RY); \ - \ - decrypt_round_end16(a, b, c, d, nk); - -#define encrypt_cycle16() \ - encrypt_round16(RA, RB, RC, RD, 0); \ - encrypt_round16(RC, RD, RA, RB, 8); - -#define encrypt_cycle_first16() \ - encrypt_round_first16(RA, RB, RC, RD, 0); \ - encrypt_round16(RC, RD, RA, RB, 8); - -#define encrypt_cycle_last16() \ - encrypt_round16(RA, RB, RC, RD, 0); \ - encrypt_round_last16(RC, RD, RA, RB, 8); - -#define decrypt_cycle16(n) \ - decrypt_round16(RC, RD, RA, RB, 8); \ - decrypt_round16(RA, RB, RC, RD, 0); - -#define decrypt_cycle_first16(n) \ - decrypt_round_first16(RC, RD, RA, RB, 8); \ - decrypt_round16(RA, RB, RC, RD, 0); - -#define decrypt_cycle_last16(n) \ - decrypt_round16(RC, RD, RA, RB, 8); \ - decrypt_round_last16(RA, RB, RC, RD, 0); - -#define transpose_4x4(x0,x1,x2,x3,t1,t2) \ - vpunpckhdq x1, x0, t2; \ - vpunpckldq x1, x0, x0; \ - \ - vpunpckldq x3, x2, t1; \ - vpunpckhdq x3, x2, x2; \ - \ - vpunpckhqdq t1, x0, x1; \ - vpunpcklqdq t1, x0, x0; \ - \ - vpunpckhqdq x2, t2, x3; \ - vpunpcklqdq x2, t2, x2; - -#define read_blocks8(offs,a,b,c,d) \ - transpose_4x4(a, b, c, d, RX0, RY0); - -#define write_blocks8(offs,a,b,c,d) \ - transpose_4x4(a, b, c, d, RX0, RY0); - -#define inpack_enc8(a,b,c,d) \ - vpbroadcastd 4*0(RW), RT0; \ - vpxor RT0, a, a; \ - \ - vpbroadcastd 4*1(RW), RT0; \ - vpxor RT0, b, b; \ - \ - vpbroadcastd 4*2(RW), RT0; \ - vpxor RT0, c, c; \ - \ - vpbroadcastd 4*3(RW), RT0; \ - vpxor RT0, d, d; - -#define outunpack_enc8(a,b,c,d) \ - vpbroadcastd 4*4(RW), RX0; \ - vpbroadcastd 4*5(RW), RY0; \ - vpxor RX0, c, RX0; \ - vpxor RY0, d, RY0; \ - \ - vpbroadcastd 4*6(RW), RT0; \ - vpxor RT0, a, c; \ - vpbroadcastd 4*7(RW), RT0; \ - vpxor RT0, b, d; \ - \ - vmovdqa RX0, a; \ - vmovdqa RY0, b; - -#define inpack_dec8(a,b,c,d) \ - vpbroadcastd 4*4(RW), RX0; \ - vpbroadcastd 4*5(RW), RY0; \ - vpxor RX0, a, RX0; \ - vpxor RY0, b, RY0; \ - \ - vpbroadcastd 4*6(RW), RT0; \ - vpxor RT0, c, a; \ - vpbroadcastd 4*7(RW), RT0; \ - vpxor RT0, d, b; \ - \ - vmovdqa RX0, c; \ - vmovdqa RY0, d; - -#define outunpack_dec8(a,b,c,d) \ - vpbroadcastd 4*0(RW), RT0; \ - vpxor RT0, a, a; \ - \ - vpbroadcastd 4*1(RW), RT0; \ - vpxor RT0, b, b; \ - \ - vpbroadcastd 4*2(RW), RT0; \ - vpxor RT0, c, c; \ - \ - vpbroadcastd 4*3(RW), RT0; \ - vpxor RT0, d, d; - -#define read_blocks16(a,b,c,d) \ - read_blocks8(0, a ## 0, b ## 0, c ## 0, d ## 0); \ - read_blocks8(8, a ## 1, b ## 1, c ## 1, d ## 1); - -#define write_blocks16(a,b,c,d) \ - write_blocks8(0, a ## 0, b ## 0, c ## 0, d ## 0); \ - write_blocks8(8, a ## 1, b ## 1, c ## 1, d ## 1); - -#define xor_blocks16(a,b,c,d) \ - xor_blocks8(0, a ## 0, b ## 0, c ## 0, d ## 0); \ - xor_blocks8(8, a ## 1, b ## 1, c ## 1, d ## 1); - -#define inpack_enc16(a,b,c,d) \ - inpack_enc8(a ## 0, b ## 0, c ## 0, d ## 0); \ - inpack_enc8(a ## 1, b ## 1, c ## 1, d ## 1); - -#define outunpack_enc16(a,b,c,d) \ - outunpack_enc8(a ## 0, b ## 0, c ## 0, d ## 0); \ - outunpack_enc8(a ## 1, b ## 1, c ## 1, d ## 1); - -#define inpack_dec16(a,b,c,d) \ - inpack_dec8(a ## 0, b ## 0, c ## 0, d ## 0); \ - inpack_dec8(a ## 1, b ## 1, c ## 1, d ## 1); - -#define outunpack_dec16(a,b,c,d) \ - outunpack_dec8(a ## 0, b ## 0, c ## 0, d ## 0); \ - outunpack_dec8(a ## 1, b ## 1, c ## 1, d ## 1); - -.align 8 -__twofish_enc_blk16: - /* input: - * %rdi: ctx, CTX - * RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1: plaintext - * output: - * RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1: ciphertext - */ - init_round_constants(); - - read_blocks16(RA, RB, RC, RD); - inpack_enc16(RA, RB, RC, RD); - - xorl RROUNDd, RROUNDd; - encrypt_cycle_first16(); - movl $2, RROUNDd; - -.align 4 -.L__enc_loop: - encrypt_cycle16(); - - addl $2, RROUNDd; - cmpl $14, RROUNDd; - jne .L__enc_loop; - - encrypt_cycle_last16(); - - outunpack_enc16(RA, RB, RC, RD); - write_blocks16(RA, RB, RC, RD); - - ret; -ENDPROC(__twofish_enc_blk16) - -.align 8 -__twofish_dec_blk16: - /* input: - * %rdi: ctx, CTX - * RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1: ciphertext - * output: - * RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1: plaintext - */ - init_round_constants(); - - read_blocks16(RA, RB, RC, RD); - inpack_dec16(RA, RB, RC, RD); - - movl $14, RROUNDd; - decrypt_cycle_first16(); - movl $12, RROUNDd; - -.align 4 -.L__dec_loop: - decrypt_cycle16(); - - addl $-2, RROUNDd; - jnz .L__dec_loop; - - decrypt_cycle_last16(); - - outunpack_dec16(RA, RB, RC, RD); - write_blocks16(RA, RB, RC, RD); - - ret; -ENDPROC(__twofish_dec_blk16) - -ENTRY(twofish_ecb_enc_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - */ - - vzeroupper; - pushq %r12; - - load_16way(%rdx, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1); - - call __twofish_enc_blk16; - - store_16way(%rsi, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1); - - popq %r12; - vzeroupper; - - ret; -ENDPROC(twofish_ecb_enc_16way) - -ENTRY(twofish_ecb_dec_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - */ - - vzeroupper; - pushq %r12; - - load_16way(%rdx, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1); - - call __twofish_dec_blk16; - - store_16way(%rsi, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1); - - popq %r12; - vzeroupper; - - ret; -ENDPROC(twofish_ecb_dec_16way) - -ENTRY(twofish_cbc_dec_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst - * %rdx: src - */ - - vzeroupper; - pushq %r12; - - load_16way(%rdx, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1); - - call __twofish_dec_blk16; - - store_cbc_16way(%rdx, %rsi, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1, - RX0); - - popq %r12; - vzeroupper; - - ret; -ENDPROC(twofish_cbc_dec_16way) - -ENTRY(twofish_ctr_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst (16 blocks) - * %rdx: src (16 blocks) - * %rcx: iv (little endian, 128bit) - */ - - vzeroupper; - pushq %r12; - - load_ctr_16way(%rcx, .Lbswap128_mask, RA0, RB0, RC0, RD0, RA1, RB1, RC1, - RD1, RX0, RX0x, RX1, RX1x, RY0, RY0x, RY1, RY1x, RNOT, - RBYTE); - - call __twofish_enc_blk16; - - store_ctr_16way(%rdx, %rsi, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1); - - popq %r12; - vzeroupper; - - ret; -ENDPROC(twofish_ctr_16way) - -.align 8 -twofish_xts_crypt_16way: - /* input: - * %rdi: ctx, CTX - * %rsi: dst (16 blocks) - * %rdx: src (16 blocks) - * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) - * %r8: pointer to __twofish_enc_blk16 or __twofish_dec_blk16 - */ - - vzeroupper; - pushq %r12; - - load_xts_16way(%rcx, %rdx, %rsi, RA0, RB0, RC0, RD0, RA1, RB1, RC1, - RD1, RX0, RX0x, RX1, RX1x, RY0, RY0x, RY1, RY1x, RNOT, - .Lxts_gf128mul_and_shl1_mask_0, - .Lxts_gf128mul_and_shl1_mask_1); - - call *%r8; - - store_xts_16way(%rsi, RA0, RB0, RC0, RD0, RA1, RB1, RC1, RD1); - - popq %r12; - vzeroupper; - - ret; -ENDPROC(twofish_xts_crypt_16way) - -ENTRY(twofish_xts_enc_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst (16 blocks) - * %rdx: src (16 blocks) - * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) - */ - leaq __twofish_enc_blk16, %r8; - jmp twofish_xts_crypt_16way; -ENDPROC(twofish_xts_enc_16way) - -ENTRY(twofish_xts_dec_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst (16 blocks) - * %rdx: src (16 blocks) - * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) - */ - leaq __twofish_dec_blk16, %r8; - jmp twofish_xts_crypt_16way; -ENDPROC(twofish_xts_dec_16way) diff --git a/arch/x86/crypto/twofish_avx2_glue.c b/arch/x86/crypto/twofish_avx2_glue.c deleted file mode 100644 index ce33b5be64e..00000000000 --- a/arch/x86/crypto/twofish_avx2_glue.c +++ /dev/null @@ -1,584 +0,0 @@ -/* - * Glue Code for x86_64/AVX2 assembler optimized version of Twofish - * - * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/crypto.h> -#include <linux/err.h> -#include <crypto/algapi.h> -#include <crypto/ctr.h> -#include <crypto/twofish.h> -#include <crypto/lrw.h> -#include <crypto/xts.h> -#include <asm/xcr.h> -#include <asm/xsave.h> -#include <asm/crypto/twofish.h> -#include <asm/crypto/ablk_helper.h> -#include <asm/crypto/glue_helper.h> -#include <crypto/scatterwalk.h> - -#define TF_AVX2_PARALLEL_BLOCKS 16 - -/* 16-way AVX2 parallel cipher functions */ -asmlinkage void twofish_ecb_enc_16way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void twofish_ecb_dec_16way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void twofish_cbc_dec_16way(void *ctx, u128 *dst, const u128 *src); - -asmlinkage void twofish_ctr_16way(void *ctx, u128 *dst, const u128 *src, - le128 *iv); - -asmlinkage void twofish_xts_enc_16way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src, le128 *iv); -asmlinkage void twofish_xts_dec_16way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src, le128 *iv); - -static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src) -{ - __twofish_enc_blk_3way(ctx, dst, src, false); -} - -static const struct common_glue_ctx twofish_enc = { - .num_funcs = 4, - .fpu_blocks_limit = 8, - - .funcs = { { - .num_blocks = 16, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_enc_16way) } - }, { - .num_blocks = 8, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_enc_8way) } - }, { - .num_blocks = 3, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_3way) } - }, { - .num_blocks = 1, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk) } - } } -}; - -static const struct common_glue_ctx twofish_ctr = { - .num_funcs = 4, - .fpu_blocks_limit = 8, - - .funcs = { { - .num_blocks = 16, - .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_ctr_16way) } - }, { - .num_blocks = 8, - .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_ctr_8way) } - }, { - .num_blocks = 3, - .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr_3way) } - }, { - .num_blocks = 1, - .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr) } - } } -}; - -static const struct common_glue_ctx twofish_enc_xts = { - .num_funcs = 3, - .fpu_blocks_limit = 8, - - .funcs = { { - .num_blocks = 16, - .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_enc_16way) } - }, { - .num_blocks = 8, - .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_enc_8way) } - }, { - .num_blocks = 1, - .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_enc) } - } } -}; - -static const struct common_glue_ctx twofish_dec = { - .num_funcs = 4, - .fpu_blocks_limit = 8, - - .funcs = { { - .num_blocks = 16, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_dec_16way) } - }, { - .num_blocks = 8, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_dec_8way) } - }, { - .num_blocks = 3, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk_3way) } - }, { - .num_blocks = 1, - .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk) } - } } -}; - -static const struct common_glue_ctx twofish_dec_cbc = { - .num_funcs = 4, - .fpu_blocks_limit = 8, - - .funcs = { { - .num_blocks = 16, - .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_cbc_dec_16way) } - }, { - .num_blocks = 8, - .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_cbc_dec_8way) } - }, { - .num_blocks = 3, - .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk_cbc_3way) } - }, { - .num_blocks = 1, - .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk) } - } } -}; - -static const struct common_glue_ctx twofish_dec_xts = { - .num_funcs = 3, - .fpu_blocks_limit = 8, - - .funcs = { { - .num_blocks = 16, - .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_dec_16way) } - }, { - .num_blocks = 8, - .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_dec_8way) } - }, { - .num_blocks = 1, - .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_dec) } - } } -}; - -static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - return glue_ecb_crypt_128bit(&twofish_enc, desc, dst, src, nbytes); -} - -static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - return glue_ecb_crypt_128bit(&twofish_dec, desc, dst, src, nbytes); -} - -static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(twofish_enc_blk), desc, - dst, src, nbytes); -} - -static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - return glue_cbc_decrypt_128bit(&twofish_dec_cbc, desc, dst, src, - nbytes); -} - -static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - return glue_ctr_crypt_128bit(&twofish_ctr, desc, dst, src, nbytes); -} - -static inline bool twofish_fpu_begin(bool fpu_enabled, unsigned int nbytes) -{ - /* since reusing AVX functions, starts using FPU at 8 parallel blocks */ - return glue_fpu_begin(TF_BLOCK_SIZE, 8, NULL, fpu_enabled, nbytes); -} - -static inline void twofish_fpu_end(bool fpu_enabled) -{ - glue_fpu_end(fpu_enabled); -} - -struct crypt_priv { - struct twofish_ctx *ctx; - bool fpu_enabled; -}; - -static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) -{ - const unsigned int bsize = TF_BLOCK_SIZE; - struct crypt_priv *ctx = priv; - int i; - - ctx->fpu_enabled = twofish_fpu_begin(ctx->fpu_enabled, nbytes); - - while (nbytes >= TF_AVX2_PARALLEL_BLOCKS * bsize) { - twofish_ecb_enc_16way(ctx->ctx, srcdst, srcdst); - srcdst += bsize * TF_AVX2_PARALLEL_BLOCKS; - nbytes -= bsize * TF_AVX2_PARALLEL_BLOCKS; - } - - while (nbytes >= 8 * bsize) { - twofish_ecb_enc_8way(ctx->ctx, srcdst, srcdst); - srcdst += bsize * 8; - nbytes -= bsize * 8; - } - - while (nbytes >= 3 * bsize) { - twofish_enc_blk_3way(ctx->ctx, srcdst, srcdst); - srcdst += bsize * 3; - nbytes -= bsize * 3; - } - - for (i = 0; i < nbytes / bsize; i++, srcdst += bsize) - twofish_enc_blk(ctx->ctx, srcdst, srcdst); -} - -static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) -{ - const unsigned int bsize = TF_BLOCK_SIZE; - struct crypt_priv *ctx = priv; - int i; - - ctx->fpu_enabled = twofish_fpu_begin(ctx->fpu_enabled, nbytes); - - while (nbytes >= TF_AVX2_PARALLEL_BLOCKS * bsize) { - twofish_ecb_dec_16way(ctx->ctx, srcdst, srcdst); - srcdst += bsize * TF_AVX2_PARALLEL_BLOCKS; - nbytes -= bsize * TF_AVX2_PARALLEL_BLOCKS; - } - - while (nbytes >= 8 * bsize) { - twofish_ecb_dec_8way(ctx->ctx, srcdst, srcdst); - srcdst += bsize * 8; - nbytes -= bsize * 8; - } - - while (nbytes >= 3 * bsize) { - twofish_dec_blk_3way(ctx->ctx, srcdst, srcdst); - srcdst += bsize * 3; - nbytes -= bsize * 3; - } - - for (i = 0; i < nbytes / bsize; i++, srcdst += bsize) - twofish_dec_blk(ctx->ctx, srcdst, srcdst); -} - -static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct twofish_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - be128 buf[TF_AVX2_PARALLEL_BLOCKS]; - struct crypt_priv crypt_ctx = { - .ctx = &ctx->twofish_ctx, - .fpu_enabled = false, - }; - struct lrw_crypt_req req = { - .tbuf = buf, - .tbuflen = sizeof(buf), - - .table_ctx = &ctx->lrw_table, - .crypt_ctx = &crypt_ctx, - .crypt_fn = encrypt_callback, - }; - int ret; - - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; - ret = lrw_crypt(desc, dst, src, nbytes, &req); - twofish_fpu_end(crypt_ctx.fpu_enabled); - - return ret; -} - -static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct twofish_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - be128 buf[TF_AVX2_PARALLEL_BLOCKS]; - struct crypt_priv crypt_ctx = { - .ctx = &ctx->twofish_ctx, - .fpu_enabled = false, - }; - struct lrw_crypt_req req = { - .tbuf = buf, - .tbuflen = sizeof(buf), - - .table_ctx = &ctx->lrw_table, - .crypt_ctx = &crypt_ctx, - .crypt_fn = decrypt_callback, - }; - int ret; - - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; - ret = lrw_crypt(desc, dst, src, nbytes, &req); - twofish_fpu_end(crypt_ctx.fpu_enabled); - - return ret; -} - -static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct twofish_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - - return glue_xts_crypt_128bit(&twofish_enc_xts, desc, dst, src, nbytes, - XTS_TWEAK_CAST(twofish_enc_blk), - &ctx->tweak_ctx, &ctx->crypt_ctx); -} - -static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes) -{ - struct twofish_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - - return glue_xts_crypt_128bit(&twofish_dec_xts, desc, dst, src, nbytes, - XTS_TWEAK_CAST(twofish_enc_blk), - &ctx->tweak_ctx, &ctx->crypt_ctx); -} - -static struct crypto_alg tf_algs[10] = { { - .cra_name = "__ecb-twofish-avx2", - .cra_driver_name = "__driver-ecb-twofish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct twofish_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_u = { - .blkcipher = { - .min_keysize = TF_MIN_KEY_SIZE, - .max_keysize = TF_MAX_KEY_SIZE, - .setkey = twofish_setkey, - .encrypt = ecb_encrypt, - .decrypt = ecb_decrypt, - }, - }, -}, { - .cra_name = "__cbc-twofish-avx2", - .cra_driver_name = "__driver-cbc-twofish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct twofish_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_u = { - .blkcipher = { - .min_keysize = TF_MIN_KEY_SIZE, - .max_keysize = TF_MAX_KEY_SIZE, - .setkey = twofish_setkey, - .encrypt = cbc_encrypt, - .decrypt = cbc_decrypt, - }, - }, -}, { - .cra_name = "__ctr-twofish-avx2", - .cra_driver_name = "__driver-ctr-twofish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct twofish_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_u = { - .blkcipher = { - .min_keysize = TF_MIN_KEY_SIZE, - .max_keysize = TF_MAX_KEY_SIZE, - .ivsize = TF_BLOCK_SIZE, - .setkey = twofish_setkey, - .encrypt = ctr_crypt, - .decrypt = ctr_crypt, - }, - }, -}, { - .cra_name = "__lrw-twofish-avx2", - .cra_driver_name = "__driver-lrw-twofish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct twofish_lrw_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_exit = lrw_twofish_exit_tfm, - .cra_u = { - .blkcipher = { - .min_keysize = TF_MIN_KEY_SIZE + - TF_BLOCK_SIZE, - .max_keysize = TF_MAX_KEY_SIZE + - TF_BLOCK_SIZE, - .ivsize = TF_BLOCK_SIZE, - .setkey = lrw_twofish_setkey, - .encrypt = lrw_encrypt, - .decrypt = lrw_decrypt, - }, - }, -}, { - .cra_name = "__xts-twofish-avx2", - .cra_driver_name = "__driver-xts-twofish-avx2", - .cra_priority = 0, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct twofish_xts_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_blkcipher_type, - .cra_module = THIS_MODULE, - .cra_u = { - .blkcipher = { - .min_keysize = TF_MIN_KEY_SIZE * 2, - .max_keysize = TF_MAX_KEY_SIZE * 2, - .ivsize = TF_BLOCK_SIZE, - .setkey = xts_twofish_setkey, - .encrypt = xts_encrypt, - .decrypt = xts_decrypt, - }, - }, -}, { - .cra_name = "ecb(twofish)", - .cra_driver_name = "ecb-twofish-avx2", - .cra_priority = 500, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = TF_MIN_KEY_SIZE, - .max_keysize = TF_MAX_KEY_SIZE, - .setkey = ablk_set_key, - .encrypt = ablk_encrypt, - .decrypt = ablk_decrypt, - }, - }, -}, { - .cra_name = "cbc(twofish)", - .cra_driver_name = "cbc-twofish-avx2", - .cra_priority = 500, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = TF_MIN_KEY_SIZE, - .max_keysize = TF_MAX_KEY_SIZE, - .ivsize = TF_BLOCK_SIZE, - .setkey = ablk_set_key, - .encrypt = __ablk_encrypt, - .decrypt = ablk_decrypt, - }, - }, -}, { - .cra_name = "ctr(twofish)", - .cra_driver_name = "ctr-twofish-avx2", - .cra_priority = 500, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = TF_MIN_KEY_SIZE, - .max_keysize = TF_MAX_KEY_SIZE, - .ivsize = TF_BLOCK_SIZE, - .setkey = ablk_set_key, - .encrypt = ablk_encrypt, - .decrypt = ablk_encrypt, - .geniv = "chainiv", - }, - }, -}, { - .cra_name = "lrw(twofish)", - .cra_driver_name = "lrw-twofish-avx2", - .cra_priority = 500, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = TF_MIN_KEY_SIZE + - TF_BLOCK_SIZE, - .max_keysize = TF_MAX_KEY_SIZE + - TF_BLOCK_SIZE, - .ivsize = TF_BLOCK_SIZE, - .setkey = ablk_set_key, - .encrypt = ablk_encrypt, - .decrypt = ablk_decrypt, - }, - }, -}, { - .cra_name = "xts(twofish)", - .cra_driver_name = "xts-twofish-avx2", - .cra_priority = 500, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = TF_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct async_helper_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = ablk_init, - .cra_exit = ablk_exit, - .cra_u = { - .ablkcipher = { - .min_keysize = TF_MIN_KEY_SIZE * 2, - .max_keysize = TF_MAX_KEY_SIZE * 2, - .ivsize = TF_BLOCK_SIZE, - .setkey = ablk_set_key, - .encrypt = ablk_encrypt, - .decrypt = ablk_decrypt, - }, - }, -} }; - -static int __init init(void) -{ - u64 xcr0; - - if (!cpu_has_avx2 || !cpu_has_osxsave) { - pr_info("AVX2 instructions are not detected.\n"); - return -ENODEV; - } - - xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK); - if ((xcr0 & (XSTATE_SSE | XSTATE_YMM)) != (XSTATE_SSE | XSTATE_YMM)) { - pr_info("AVX2 detected but unusable.\n"); - return -ENODEV; - } - - return crypto_register_algs(tf_algs, ARRAY_SIZE(tf_algs)); -} - -static void __exit fini(void) -{ - crypto_unregister_algs(tf_algs, ARRAY_SIZE(tf_algs)); -} - -module_init(init); -module_exit(fini); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Twofish Cipher Algorithm, AVX2 optimized"); -MODULE_ALIAS("twofish"); -MODULE_ALIAS("twofish-asm"); diff --git a/arch/x86/crypto/twofish_avx_glue.c b/arch/x86/crypto/twofish_avx_glue.c index 2047a562f6b..a62ba541884 100644 --- a/arch/x86/crypto/twofish_avx_glue.c +++ b/arch/x86/crypto/twofish_avx_glue.c @@ -50,26 +50,18 @@ /* 8-way parallel cipher functions */ asmlinkage void twofish_ecb_enc_8way(struct twofish_ctx *ctx, u8 *dst, const u8 *src); -EXPORT_SYMBOL_GPL(twofish_ecb_enc_8way); - asmlinkage void twofish_ecb_dec_8way(struct twofish_ctx *ctx, u8 *dst, const u8 *src); -EXPORT_SYMBOL_GPL(twofish_ecb_dec_8way); asmlinkage void twofish_cbc_dec_8way(struct twofish_ctx *ctx, u8 *dst, const u8 *src); -EXPORT_SYMBOL_GPL(twofish_cbc_dec_8way); - asmlinkage void twofish_ctr_8way(struct twofish_ctx *ctx, u8 *dst, const u8 *src, le128 *iv); -EXPORT_SYMBOL_GPL(twofish_ctr_8way); asmlinkage void twofish_xts_enc_8way(struct twofish_ctx *ctx, u8 *dst, const u8 *src, le128 *iv); -EXPORT_SYMBOL_GPL(twofish_xts_enc_8way); asmlinkage void twofish_xts_dec_8way(struct twofish_ctx *ctx, u8 *dst, const u8 *src, le128 *iv); -EXPORT_SYMBOL_GPL(twofish_xts_dec_8way); static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, const u8 *src) @@ -77,19 +69,17 @@ static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, __twofish_enc_blk_3way(ctx, dst, src, false); } -void twofish_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +static void twofish_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) { glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(twofish_enc_blk)); } -EXPORT_SYMBOL_GPL(twofish_xts_enc); -void twofish_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +static void twofish_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) { glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(twofish_dec_blk)); } -EXPORT_SYMBOL_GPL(twofish_xts_dec); static const struct common_glue_ctx twofish_enc = { diff --git a/arch/x86/include/asm/crypto/blowfish.h b/arch/x86/include/asm/crypto/blowfish.h deleted file mode 100644 index f097b2face1..00000000000 --- a/arch/x86/include/asm/crypto/blowfish.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef ASM_X86_BLOWFISH_H -#define ASM_X86_BLOWFISH_H - -#include <linux/crypto.h> -#include <crypto/blowfish.h> - -#define BF_PARALLEL_BLOCKS 4 - -/* regular block cipher functions */ -asmlinkage void __blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src, - bool xor); -asmlinkage void blowfish_dec_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src); - -/* 4-way parallel cipher functions */ -asmlinkage void __blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst, - const u8 *src, bool xor); -asmlinkage void blowfish_dec_blk_4way(struct bf_ctx *ctx, u8 *dst, - const u8 *src); - -static inline void blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src) -{ - __blowfish_enc_blk(ctx, dst, src, false); -} - -static inline void blowfish_enc_blk_xor(struct bf_ctx *ctx, u8 *dst, - const u8 *src) -{ - __blowfish_enc_blk(ctx, dst, src, true); -} - -static inline void blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst, - const u8 *src) -{ - __blowfish_enc_blk_4way(ctx, dst, src, false); -} - -static inline void blowfish_enc_blk_xor_4way(struct bf_ctx *ctx, u8 *dst, - const u8 *src) -{ - __blowfish_enc_blk_4way(ctx, dst, src, true); -} - -#endif diff --git a/arch/x86/include/asm/crypto/twofish.h b/arch/x86/include/asm/crypto/twofish.h index e655c6029b4..878c51ceebb 100644 --- a/arch/x86/include/asm/crypto/twofish.h +++ b/arch/x86/include/asm/crypto/twofish.h @@ -28,20 +28,6 @@ asmlinkage void __twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst, asmlinkage void twofish_dec_blk_3way(struct twofish_ctx *ctx, u8 *dst, const u8 *src); -/* 8-way parallel cipher functions */ -asmlinkage void twofish_ecb_enc_8way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void twofish_ecb_dec_8way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void twofish_cbc_dec_8way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src); -asmlinkage void twofish_ctr_8way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src, le128 *iv); -asmlinkage void twofish_xts_enc_8way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src, le128 *iv); -asmlinkage void twofish_xts_dec_8way(struct twofish_ctx *ctx, u8 *dst, - const u8 *src, le128 *iv); - /* helpers from twofish_x86_64-3way module */ extern void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src); extern void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, @@ -57,8 +43,4 @@ extern void lrw_twofish_exit_tfm(struct crypto_tfm *tfm); extern int xts_twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); -/* helpers from twofish-avx module */ -extern void twofish_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv); -extern void twofish_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv); - #endif /* ASM_X86_TWOFISH_H */ diff --git a/crypto/Kconfig b/crypto/Kconfig index bf8148e74e7..904ffe83856 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -376,6 +376,25 @@ config CRYPTO_CRC32_PCLMUL which will enable any routine to use the CRC-32-IEEE 802.3 checksum and gain better performance as compared with the table implementation. +config CRYPTO_CRCT10DIF + tristate "CRCT10DIF algorithm" + select CRYPTO_HASH + help + CRC T10 Data Integrity Field computation is being cast as + a crypto transform. This allows for faster crc t10 diff + transforms to be used if they are available. + +config CRYPTO_CRCT10DIF_PCLMUL + tristate "CRCT10DIF PCLMULQDQ hardware acceleration" + depends on X86 && 64BIT && CRC_T10DIF + select CRYPTO_HASH + help + For x86_64 processors with SSE4.2 and PCLMULQDQ supported, + CRC T10 DIF PCLMULQDQ computation can be hardware + accelerated PCLMULQDQ instruction. This option will create + 'crct10dif-plcmul' module, which is faster when computing the + crct10dif checksum as compared with the generic table implementation. + config CRYPTO_GHASH tristate "GHASH digest algorithm" select CRYPTO_GF128MUL @@ -820,25 +839,6 @@ config CRYPTO_BLOWFISH_X86_64 See also: <http://www.schneier.com/blowfish.html> -config CRYPTO_BLOWFISH_AVX2_X86_64 - tristate "Blowfish cipher algorithm (x86_64/AVX2)" - depends on X86 && 64BIT - depends on BROKEN - select CRYPTO_ALGAPI - select CRYPTO_CRYPTD - select CRYPTO_ABLK_HELPER_X86 - select CRYPTO_BLOWFISH_COMMON - select CRYPTO_BLOWFISH_X86_64 - help - Blowfish cipher algorithm (x86_64/AVX2), by Bruce Schneier. - - This is a variable key length cipher which can use keys from 32 - bits to 448 bits in length. It's fast, simple and specifically - designed for use on "large microprocessors". - - See also: - <http://www.schneier.com/blowfish.html> - config CRYPTO_CAMELLIA tristate "Camellia cipher algorithms" depends on CRYPTO @@ -1297,31 +1297,6 @@ config CRYPTO_TWOFISH_AVX_X86_64 See also: <http://www.schneier.com/twofish.html> -config CRYPTO_TWOFISH_AVX2_X86_64 - tristate "Twofish cipher algorithm (x86_64/AVX2)" - depends on X86 && 64BIT - depends on BROKEN - select CRYPTO_ALGAPI - select CRYPTO_CRYPTD - select CRYPTO_ABLK_HELPER_X86 - select CRYPTO_GLUE_HELPER_X86 - select CRYPTO_TWOFISH_COMMON - select CRYPTO_TWOFISH_X86_64 - select CRYPTO_TWOFISH_X86_64_3WAY - select CRYPTO_TWOFISH_AVX_X86_64 - select CRYPTO_LRW - select CRYPTO_XTS - help - Twofish cipher algorithm (x86_64/AVX2). - - Twofish was submitted as an AES (Advanced Encryption Standard) - candidate cipher by researchers at CounterPane Systems. It is a - 16 round block cipher supporting key sizes of 128, 192, and 256 - bits. - - See also: - <http://www.schneier.com/twofish.html> - comment "Compression" config CRYPTO_DEFLATE diff --git a/crypto/Makefile b/crypto/Makefile index a8e9b0fefbe..62af87df872 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -83,6 +83,7 @@ obj-$(CONFIG_CRYPTO_ZLIB) += zlib.o obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += michael_mic.o obj-$(CONFIG_CRYPTO_CRC32C) += crc32c.o obj-$(CONFIG_CRYPTO_CRC32) += crc32.o +obj-$(CONFIG_CRYPTO_CRCT10DIF) += crct10dif.o obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.o authencesn.o obj-$(CONFIG_CRYPTO_LZO) += lzo.o obj-$(CONFIG_CRYPTO_842) += 842.o diff --git a/crypto/crct10dif.c b/crypto/crct10dif.c new file mode 100644 index 00000000000..92aca96d6b9 --- /dev/null +++ b/crypto/crct10dif.c @@ -0,0 +1,178 @@ +/* + * Cryptographic API. + * + * T10 Data Integrity Field CRC16 Crypto Transform + * + * Copyright (c) 2007 Oracle Corporation. All rights reserved. + * Written by Martin K. Petersen <martin.petersen@oracle.com> + * Copyright (C) 2013 Intel Corporation + * Author: Tim Chen <tim.c.chen@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/crc-t10dif.h> +#include <crypto/internal/hash.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/kernel.h> + +struct chksum_desc_ctx { + __u16 crc; +}; + +/* Table generated using the following polynomium: + * x^16 + x^15 + x^11 + x^9 + x^8 + x^7 + x^5 + x^4 + x^2 + x + 1 + * gt: 0x8bb7 + */ +static const __u16 t10_dif_crc_table[256] = { + 0x0000, 0x8BB7, 0x9CD9, 0x176E, 0xB205, 0x39B2, 0x2EDC, 0xA56B, + 0xEFBD, 0x640A, 0x7364, 0xF8D3, 0x5DB8, 0xD60F, 0xC161, 0x4AD6, + 0x54CD, 0xDF7A, 0xC814, 0x43A3, 0xE6C8, 0x6D7F, 0x7A11, 0xF1A6, + 0xBB70, 0x30C7, 0x27A9, 0xAC1E, 0x0975, 0x82C2, 0x95AC, 0x1E1B, + 0xA99A, 0x222D, 0x3543, 0xBEF4, 0x1B9F, 0x9028, 0x8746, 0x0CF1, + 0x4627, 0xCD90, 0xDAFE, 0x5149, 0xF422, 0x7F95, 0x68FB, 0xE34C, + 0xFD57, 0x76E0, 0x618E, 0xEA39, 0x4F52, 0xC4E5, 0xD38B, 0x583C, + 0x12EA, 0x995D, 0x8E33, 0x0584, 0xA0EF, 0x2B58, 0x3C36, 0xB781, + 0xD883, 0x5334, 0x445A, 0xCFED, 0x6A86, 0xE131, 0xF65F, 0x7DE8, + 0x373E, 0xBC89, 0xABE7, 0x2050, 0x853B, 0x0E8C, 0x19E2, 0x9255, + 0x8C4E, 0x07F9, 0x1097, 0x9B20, 0x3E4B, 0xB5FC, 0xA292, 0x2925, + 0x63F3, 0xE844, 0xFF2A, 0x749D, 0xD1F6, 0x5A41, 0x4D2F, 0xC698, + 0x7119, 0xFAAE, 0xEDC0, 0x6677, 0xC31C, 0x48AB, 0x5FC5, 0xD472, + 0x9EA4, 0x1513, 0x027D, 0x89CA, 0x2CA1, 0xA716, 0xB078, 0x3BCF, + 0x25D4, 0xAE63, 0xB90D, 0x32BA, 0x97D1, 0x1C66, 0x0B08, 0x80BF, + 0xCA69, 0x41DE, 0x56B0, 0xDD07, 0x786C, 0xF3DB, 0xE4B5, 0x6F02, + 0x3AB1, 0xB106, 0xA668, 0x2DDF, 0x88B4, 0x0303, 0x146D, 0x9FDA, + 0xD50C, 0x5EBB, 0x49D5, 0xC262, 0x6709, 0xECBE, 0xFBD0, 0x7067, + 0x6E7C, 0xE5CB, 0xF2A5, 0x7912, 0xDC79, 0x57CE, 0x40A0, 0xCB17, + 0x81C1, 0x0A76, 0x1D18, 0x96AF, 0x33C4, 0xB873, 0xAF1D, 0x24AA, + 0x932B, 0x189C, 0x0FF2, 0x8445, 0x212E, 0xAA99, 0xBDF7, 0x3640, + 0x7C96, 0xF721, 0xE04F, 0x6BF8, 0xCE93, 0x4524, 0x524A, 0xD9FD, + 0xC7E6, 0x4C51, 0x5B3F, 0xD088, 0x75E3, 0xFE54, 0xE93A, 0x628D, + 0x285B, 0xA3EC, 0xB482, 0x3F35, 0x9A5E, 0x11E9, 0x0687, 0x8D30, + 0xE232, 0x6985, 0x7EEB, 0xF55C, 0x5037, 0xDB80, 0xCCEE, 0x4759, + 0x0D8F, 0x8638, 0x9156, 0x1AE1, 0xBF8A, 0x343D, 0x2353, 0xA8E4, + 0xB6FF, 0x3D48, 0x2A26, 0xA191, 0x04FA, 0x8F4D, 0x9823, 0x1394, + 0x5942, 0xD2F5, 0xC59B, 0x4E2C, 0xEB47, 0x60F0, 0x779E, 0xFC29, + 0x4BA8, 0xC01F, 0xD771, 0x5CC6, 0xF9AD, 0x721A, 0x6574, 0xEEC3, + 0xA415, 0x2FA2, 0x38CC, 0xB37B, 0x1610, 0x9DA7, 0x8AC9, 0x017E, + 0x1F65, 0x94D2, 0x83BC, 0x080B, 0xAD60, 0x26D7, 0x31B9, 0xBA0E, + 0xF0D8, 0x7B6F, 0x6C01, 0xE7B6, 0x42DD, 0xC96A, 0xDE04, 0x55B3 +}; + +__u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer, size_t len) +{ + unsigned int i; + + for (i = 0 ; i < len ; i++) + crc = (crc << 8) ^ t10_dif_crc_table[((crc >> 8) ^ buffer[i]) & 0xff]; + + return crc; +} +EXPORT_SYMBOL(crc_t10dif_generic); + +/* + * Steps through buffer one byte at at time, calculates reflected + * crc using table. + */ + +static int chksum_init(struct shash_desc *desc) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + ctx->crc = 0; + + return 0; +} + +static int chksum_update(struct shash_desc *desc, const u8 *data, + unsigned int length) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + ctx->crc = crc_t10dif_generic(ctx->crc, data, length); + return 0; +} + +static int chksum_final(struct shash_desc *desc, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + *(__u16 *)out = ctx->crc; + return 0; +} + +static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len, + u8 *out) +{ + *(__u16 *)out = crc_t10dif_generic(*crcp, data, len); + return 0; +} + +static int chksum_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + return __chksum_finup(&ctx->crc, data, len, out); +} + +static int chksum_digest(struct shash_desc *desc, const u8 *data, + unsigned int length, u8 *out) +{ + struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); + + return __chksum_finup(&ctx->crc, data, length, out); +} + +static struct shash_alg alg = { + .digestsize = CRC_T10DIF_DIGEST_SIZE, + .init = chksum_init, + .update = chksum_update, + .final = chksum_final, + .finup = chksum_finup, + .digest = chksum_digest, + .descsize = sizeof(struct chksum_desc_ctx), + .base = { + .cra_name = "crct10dif", + .cra_driver_name = "crct10dif-generic", + .cra_priority = 100, + .cra_blocksize = CRC_T10DIF_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static int __init crct10dif_mod_init(void) +{ + int ret; + + ret = crypto_register_shash(&alg); + return ret; +} + +static void __exit crct10dif_mod_fini(void) +{ + crypto_unregister_shash(&alg); +} + +module_init(crct10dif_mod_init); +module_exit(crct10dif_mod_fini); + +MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>"); +MODULE_DESCRIPTION("T10 DIF CRC calculation."); +MODULE_LICENSE("GPL"); diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c index 4c586209567..6ed124f3ea0 100644 --- a/crypto/sha512_generic.c +++ b/crypto/sha512_generic.c @@ -251,6 +251,7 @@ static struct shash_alg sha512_algs[2] = { { .descsize = sizeof(struct sha512_state), .base = { .cra_name = "sha512", + .cra_driver_name = "sha512-generic", .cra_flags = CRYPTO_ALG_TYPE_SHASH, .cra_blocksize = SHA512_BLOCK_SIZE, .cra_module = THIS_MODULE, @@ -263,6 +264,7 @@ static struct shash_alg sha512_algs[2] = { { .descsize = sizeof(struct sha512_state), .base = { .cra_name = "sha384", + .cra_driver_name = "sha384-generic", .cra_flags = CRYPTO_ALG_TYPE_SHASH, .cra_blocksize = SHA384_BLOCK_SIZE, .cra_module = THIS_MODULE, diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 66d254ce0d1..25a5934f0e5 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -1174,6 +1174,10 @@ static int do_test(int m) ret += tcrypt_test("ghash"); break; + case 47: + ret += tcrypt_test("crct10dif"); + break; + case 100: ret += tcrypt_test("hmac(md5)"); break; @@ -1498,6 +1502,10 @@ static int do_test(int m) test_hash_speed("crc32c", sec, generic_hash_speed_template); if (mode > 300 && mode < 400) break; + case 320: + test_hash_speed("crct10dif", sec, generic_hash_speed_template); + if (mode > 300 && mode < 400) break; + case 399: break; diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 5823735cf38..2f00607039e 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -184,8 +184,9 @@ static int do_one_async_hash_op(struct ahash_request *req, return ret; } -static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template, - unsigned int tcount, bool use_digest) +static int __test_hash(struct crypto_ahash *tfm, struct hash_testvec *template, + unsigned int tcount, bool use_digest, + const int align_offset) { const char *algo = crypto_tfm_alg_driver_name(crypto_ahash_tfm(tfm)); unsigned int i, j, k, temp; @@ -216,10 +217,15 @@ static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template, if (template[i].np) continue; + ret = -EINVAL; + if (WARN_ON(align_offset + template[i].psize > PAGE_SIZE)) + goto out; + j++; memset(result, 0, 64); hash_buff = xbuf[0]; + hash_buff += align_offset; memcpy(hash_buff, template[i].plaintext, template[i].psize); sg_init_one(&sg[0], hash_buff, template[i].psize); @@ -281,6 +287,10 @@ static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template, j = 0; for (i = 0; i < tcount; i++) { + /* alignment tests are only done with continuous buffers */ + if (align_offset != 0) + break; + if (template[i].np) { j++; memset(result, 0, 64); @@ -358,9 +368,36 @@ out_nobuf: return ret; } +static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template, + unsigned int tcount, bool use_digest) +{ + unsigned int alignmask; + int ret; + + ret = __test_hash(tfm, template, tcount, use_digest, 0); + if (ret) + return ret; + + /* test unaligned buffers, check with one byte offset */ + ret = __test_hash(tfm, template, tcount, use_digest, 1); + if (ret) + return ret; + + alignmask = crypto_tfm_alg_alignmask(&tfm->base); + if (alignmask) { + /* Check if alignment mask for tfm is correctly set. */ + ret = __test_hash(tfm, template, tcount, use_digest, + alignmask + 1); + if (ret) + return ret; + } + + return 0; +} + static int __test_aead(struct crypto_aead *tfm, int enc, struct aead_testvec *template, unsigned int tcount, - const bool diff_dst) + const bool diff_dst, const int align_offset) { const char *algo = crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm)); unsigned int i, j, k, n, temp; @@ -423,15 +460,16 @@ static int __test_aead(struct crypto_aead *tfm, int enc, if (!template[i].np) { j++; - /* some tepmplates have no input data but they will + /* some templates have no input data but they will * touch input */ input = xbuf[0]; + input += align_offset; assoc = axbuf[0]; ret = -EINVAL; - if (WARN_ON(template[i].ilen > PAGE_SIZE || - template[i].alen > PAGE_SIZE)) + if (WARN_ON(align_offset + template[i].ilen > + PAGE_SIZE || template[i].alen > PAGE_SIZE)) goto out; memcpy(input, template[i].input, template[i].ilen); @@ -470,6 +508,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc, if (diff_dst) { output = xoutbuf[0]; + output += align_offset; sg_init_one(&sgout[0], output, template[i].ilen + (enc ? authsize : 0)); @@ -530,6 +569,10 @@ static int __test_aead(struct crypto_aead *tfm, int enc, } for (i = 0, j = 0; i < tcount; i++) { + /* alignment tests are only done with continuous buffers */ + if (align_offset != 0) + break; + if (template[i].np) { j++; @@ -732,15 +775,34 @@ out_noxbuf: static int test_aead(struct crypto_aead *tfm, int enc, struct aead_testvec *template, unsigned int tcount) { + unsigned int alignmask; int ret; /* test 'dst == src' case */ - ret = __test_aead(tfm, enc, template, tcount, false); + ret = __test_aead(tfm, enc, template, tcount, false, 0); if (ret) return ret; /* test 'dst != src' case */ - return __test_aead(tfm, enc, template, tcount, true); + ret = __test_aead(tfm, enc, template, tcount, true, 0); + if (ret) + return ret; + + /* test unaligned buffers, check with one byte offset */ + ret = __test_aead(tfm, enc, template, tcount, true, 1); + if (ret) + return ret; + + alignmask = crypto_tfm_alg_alignmask(&tfm->base); + if (alignmask) { + /* Check if alignment mask for tfm is correctly set. */ + ret = __test_aead(tfm, enc, template, tcount, true, + alignmask + 1); + if (ret) + return ret; + } + + return 0; } static int test_cipher(struct crypto_cipher *tfm, int enc, @@ -820,7 +882,7 @@ out_nobuf: static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc, struct cipher_testvec *template, unsigned int tcount, - const bool diff_dst) + const bool diff_dst, const int align_offset) { const char *algo = crypto_tfm_alg_driver_name(crypto_ablkcipher_tfm(tfm)); @@ -876,10 +938,12 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc, j++; ret = -EINVAL; - if (WARN_ON(template[i].ilen > PAGE_SIZE)) + if (WARN_ON(align_offset + template[i].ilen > + PAGE_SIZE)) goto out; data = xbuf[0]; + data += align_offset; memcpy(data, template[i].input, template[i].ilen); crypto_ablkcipher_clear_flags(tfm, ~0); @@ -900,6 +964,7 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc, sg_init_one(&sg[0], data, template[i].ilen); if (diff_dst) { data = xoutbuf[0]; + data += align_offset; sg_init_one(&sgout[0], data, template[i].ilen); } @@ -941,6 +1006,9 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc, j = 0; for (i = 0; i < tcount; i++) { + /* alignment tests are only done with continuous buffers */ + if (align_offset != 0) + break; if (template[i].iv) memcpy(iv, template[i].iv, MAX_IVLEN); @@ -1075,15 +1143,34 @@ out_nobuf: static int test_skcipher(struct crypto_ablkcipher *tfm, int enc, struct cipher_testvec *template, unsigned int tcount) { + unsigned int alignmask; int ret; /* test 'dst == src' case */ - ret = __test_skcipher(tfm, enc, template, tcount, false); + ret = __test_skcipher(tfm, enc, template, tcount, false, 0); if (ret) return ret; /* test 'dst != src' case */ - return __test_skcipher(tfm, enc, template, tcount, true); + ret = __test_skcipher(tfm, enc, template, tcount, true, 0); + if (ret) + return ret; + + /* test unaligned buffers, check with one byte offset */ + ret = __test_skcipher(tfm, enc, template, tcount, true, 1); + if (ret) + return ret; + + alignmask = crypto_tfm_alg_alignmask(&tfm->base); + if (alignmask) { + /* Check if alignment mask for tfm is correctly set. */ + ret = __test_skcipher(tfm, enc, template, tcount, true, + alignmask + 1); + if (ret) + return ret; + } + + return 0; } static int test_comp(struct crypto_comp *tfm, struct comp_testvec *ctemplate, @@ -1654,16 +1741,10 @@ static const struct alg_test_desc alg_test_descs[] = { .alg = "__cbc-twofish-avx", .test = alg_test_null, }, { - .alg = "__cbc-twofish-avx2", - .test = alg_test_null, - }, { .alg = "__driver-cbc-aes-aesni", .test = alg_test_null, .fips_allowed = 1, }, { - .alg = "__driver-cbc-blowfish-avx2", - .test = alg_test_null, - }, { .alg = "__driver-cbc-camellia-aesni", .test = alg_test_null, }, { @@ -1688,16 +1769,10 @@ static const struct alg_test_desc alg_test_descs[] = { .alg = "__driver-cbc-twofish-avx", .test = alg_test_null, }, { - .alg = "__driver-cbc-twofish-avx2", - .test = alg_test_null, - }, { .alg = "__driver-ecb-aes-aesni", .test = alg_test_null, .fips_allowed = 1, }, { - .alg = "__driver-ecb-blowfish-avx2", - .test = alg_test_null, - }, { .alg = "__driver-ecb-camellia-aesni", .test = alg_test_null, }, { @@ -1722,9 +1797,6 @@ static const struct alg_test_desc alg_test_descs[] = { .alg = "__driver-ecb-twofish-avx", .test = alg_test_null, }, { - .alg = "__driver-ecb-twofish-avx2", - .test = alg_test_null, - }, { .alg = "__ghash-pclmulqdqni", .test = alg_test_null, .fips_allowed = 1, @@ -1974,12 +2046,19 @@ static const struct alg_test_desc alg_test_descs[] = { } } }, { - .alg = "cryptd(__driver-cbc-aes-aesni)", - .test = alg_test_null, + .alg = "crct10dif", + .test = alg_test_hash, .fips_allowed = 1, + .suite = { + .hash = { + .vecs = crct10dif_tv_template, + .count = CRCT10DIF_TEST_VECTORS + } + } }, { - .alg = "cryptd(__driver-cbc-blowfish-avx2)", + .alg = "cryptd(__driver-cbc-aes-aesni)", .test = alg_test_null, + .fips_allowed = 1, }, { .alg = "cryptd(__driver-cbc-camellia-aesni)", .test = alg_test_null, @@ -1994,9 +2073,6 @@ static const struct alg_test_desc alg_test_descs[] = { .test = alg_test_null, .fips_allowed = 1, }, { - .alg = "cryptd(__driver-ecb-blowfish-avx2)", - .test = alg_test_null, - }, { .alg = "cryptd(__driver-ecb-camellia-aesni)", .test = alg_test_null, }, { @@ -2021,9 +2097,6 @@ static const struct alg_test_desc alg_test_descs[] = { .alg = "cryptd(__driver-ecb-twofish-avx)", .test = alg_test_null, }, { - .alg = "cryptd(__driver-ecb-twofish-avx2)", - .test = alg_test_null, - }, { .alg = "cryptd(__driver-gcm-aes-aesni)", .test = alg_test_null, .fips_allowed = 1, @@ -3068,6 +3141,35 @@ static const struct alg_test_desc alg_test_descs[] = { } }; +static bool alg_test_descs_checked; + +static void alg_test_descs_check_order(void) +{ + int i; + + /* only check once */ + if (alg_test_descs_checked) + return; + + alg_test_descs_checked = true; + + for (i = 1; i < ARRAY_SIZE(alg_test_descs); i++) { + int diff = strcmp(alg_test_descs[i - 1].alg, + alg_test_descs[i].alg); + + if (WARN_ON(diff > 0)) { + pr_warn("testmgr: alg_test_descs entries in wrong order: '%s' before '%s'\n", + alg_test_descs[i - 1].alg, + alg_test_descs[i].alg); + } + + if (WARN_ON(diff == 0)) { + pr_warn("testmgr: duplicate alg_test_descs entry: '%s'\n", + alg_test_descs[i].alg); + } + } +} + static int alg_find_test(const char *alg) { int start = 0; @@ -3099,6 +3201,8 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask) int j; int rc; + alg_test_descs_check_order(); + if ((type & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_CIPHER) { char nalg[CRYPTO_MAX_ALG_NAME]; diff --git a/crypto/testmgr.h b/crypto/testmgr.h index 1e701bc075b..7d44aa3d6b4 100644 --- a/crypto/testmgr.h +++ b/crypto/testmgr.h @@ -450,6 +450,39 @@ static struct hash_testvec rmd320_tv_template[] = { } }; +#define CRCT10DIF_TEST_VECTORS 3 +static struct hash_testvec crct10dif_tv_template[] = { + { + .plaintext = "abc", + .psize = 3, +#ifdef __LITTLE_ENDIAN + .digest = "\x3b\x44", +#else + .digest = "\x44\x3b", +#endif + }, { + .plaintext = "1234567890123456789012345678901234567890" + "123456789012345678901234567890123456789", + .psize = 79, +#ifdef __LITTLE_ENDIAN + .digest = "\x70\x4b", +#else + .digest = "\x4b\x70", +#endif + }, { + .plaintext = + "abcddddddddddddddddddddddddddddddddddddddddddddddddddddd", + .psize = 56, +#ifdef __LITTLE_ENDIAN + .digest = "\xe3\x9c", +#else + .digest = "\x9c\xe3", +#endif + .np = 2, + .tap = { 28, 28 } + } +}; + /* * SHA1 test vectors from from FIPS PUB 180-1 * Long vector from CAVS 5.0 diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c index 7c73d4aca36..bf9fc6b7932 100644 --- a/drivers/char/hw_random/atmel-rng.c +++ b/drivers/char/hw_random/atmel-rng.c @@ -108,8 +108,6 @@ static int atmel_trng_remove(struct platform_device *pdev) clk_disable(trng->clk); clk_put(trng->clk); - platform_set_drvdata(pdev, NULL); - return 0; } diff --git a/drivers/char/hw_random/bcm63xx-rng.c b/drivers/char/hw_random/bcm63xx-rng.c index f343b7d0dfa..36581ea562c 100644 --- a/drivers/char/hw_random/bcm63xx-rng.c +++ b/drivers/char/hw_random/bcm63xx-rng.c @@ -137,7 +137,6 @@ static int bcm63xx_rng_probe(struct platform_device *pdev) out_clk_disable: clk_disable(clk); out_free_rng: - platform_set_drvdata(pdev, NULL); kfree(rng); out_free_priv: kfree(priv); @@ -154,7 +153,6 @@ static int bcm63xx_rng_remove(struct platform_device *pdev) clk_disable(priv->clk); kfree(priv); kfree(rng); - platform_set_drvdata(pdev, NULL); return 0; } diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c index 20b962e1d83..f9beed54d0c 100644 --- a/drivers/char/hw_random/n2-drv.c +++ b/drivers/char/hw_random/n2-drv.c @@ -700,7 +700,7 @@ static int n2rng_probe(struct platform_device *op) if (err) goto out_free_units; - dev_set_drvdata(&op->dev, np); + platform_set_drvdata(op, np); schedule_delayed_work(&np->work, 0); @@ -721,7 +721,7 @@ out: static int n2rng_remove(struct platform_device *op) { - struct n2rng *np = dev_get_drvdata(&op->dev); + struct n2rng *np = platform_get_drvdata(op); np->flags |= N2RNG_FLAG_SHUTDOWN; @@ -736,8 +736,6 @@ static int n2rng_remove(struct platform_device *op) kfree(np); - dev_set_drvdata(&op->dev, NULL); - return 0; } diff --git a/drivers/char/hw_random/nomadik-rng.c b/drivers/char/hw_random/nomadik-rng.c index 96de0249e59..232b87fb5fc 100644 --- a/drivers/char/hw_random/nomadik-rng.c +++ b/drivers/char/hw_random/nomadik-rng.c @@ -51,7 +51,7 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id) return ret; } - clk_enable(rng_clk); + clk_prepare_enable(rng_clk); ret = amba_request_regions(dev, dev->dev.init_name); if (ret) diff --git a/drivers/char/hw_random/octeon-rng.c b/drivers/char/hw_random/octeon-rng.c index 1eada566ca7..f2885dbe184 100644 --- a/drivers/char/hw_random/octeon-rng.c +++ b/drivers/char/hw_random/octeon-rng.c @@ -96,7 +96,7 @@ static int octeon_rng_probe(struct platform_device *pdev) rng->ops = ops; - dev_set_drvdata(&pdev->dev, &rng->ops); + platform_set_drvdata(pdev, &rng->ops); ret = hwrng_register(&rng->ops); if (ret) return -ENOENT; @@ -108,7 +108,7 @@ static int octeon_rng_probe(struct platform_device *pdev) static int __exit octeon_rng_remove(struct platform_device *pdev) { - struct hwrng *rng = dev_get_drvdata(&pdev->dev); + struct hwrng *rng = platform_get_drvdata(pdev); hwrng_unregister(rng); diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index d2903e77227..6843ec87b98 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -116,7 +116,7 @@ static int omap_rng_probe(struct platform_device *pdev) }; omap_rng_ops.priv = (unsigned long)priv; - dev_set_drvdata(&pdev->dev, priv); + platform_set_drvdata(pdev, priv); priv->mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->base = devm_ioremap_resource(&pdev->dev, priv->mem_res); @@ -124,7 +124,7 @@ static int omap_rng_probe(struct platform_device *pdev) ret = PTR_ERR(priv->base); goto err_ioremap; } - dev_set_drvdata(&pdev->dev, priv); + platform_set_drvdata(pdev, priv); pm_runtime_enable(&pdev->dev); pm_runtime_get_sync(&pdev->dev); @@ -151,7 +151,7 @@ err_ioremap: static int __exit omap_rng_remove(struct platform_device *pdev) { - struct omap_rng_private_data *priv = dev_get_drvdata(&pdev->dev); + struct omap_rng_private_data *priv = platform_get_drvdata(pdev); hwrng_unregister(&omap_rng_ops); diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c index 3e75737f5fe..d2120ba8f3f 100644 --- a/drivers/char/hw_random/timeriomem-rng.c +++ b/drivers/char/hw_random/timeriomem-rng.c @@ -192,7 +192,6 @@ out_release_io: out_timer: del_timer_sync(&priv->timer); out_free: - platform_set_drvdata(pdev, NULL); kfree(priv); return err; } @@ -209,7 +208,6 @@ static int timeriomem_rng_remove(struct platform_device *pdev) del_timer_sync(&priv->timer); iounmap(priv->io_base); release_mem_region(res->start, resource_size(res)); - platform_set_drvdata(pdev, NULL); kfree(priv); return 0; diff --git a/drivers/char/hw_random/tx4939-rng.c b/drivers/char/hw_random/tx4939-rng.c index d34a24a0d48..00593c847cf 100644 --- a/drivers/char/hw_random/tx4939-rng.c +++ b/drivers/char/hw_random/tx4939-rng.c @@ -154,7 +154,6 @@ static int __exit tx4939_rng_remove(struct platform_device *dev) struct tx4939_rng *rngdev = platform_get_drvdata(dev); hwrng_unregister(&rngdev->rng); - platform_set_drvdata(dev, NULL); return 0; } diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index dffb8552536..8ff7c230d82 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -278,7 +278,7 @@ config CRYPTO_DEV_PICOXCELL config CRYPTO_DEV_SAHARA tristate "Support for SAHARA crypto accelerator" - depends on ARCH_MXC && EXPERIMENTAL && OF + depends on ARCH_MXC && OF select CRYPTO_BLKCIPHER select CRYPTO_AES select CRYPTO_ECB @@ -286,6 +286,16 @@ config CRYPTO_DEV_SAHARA This option enables support for the SAHARA HW crypto accelerator found in some Freescale i.MX chips. +config CRYPTO_DEV_DCP + tristate "Support for the DCP engine" + depends on ARCH_MXS && OF + select CRYPTO_BLKCIPHER + select CRYPTO_AES + select CRYPTO_CBC + help + This options enables support for the hardware crypto-acceleration + capabilities of the DCP co-processor + config CRYPTO_DEV_S5P tristate "Support for Samsung S5PV210 crypto accelerator" depends on ARCH_S5PV210 diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile index 38ce13d3b79..b4946ddd255 100644 --- a/drivers/crypto/Makefile +++ b/drivers/crypto/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_CRYPTO_DEV_OMAP_SHAM) += omap-sham.o obj-$(CONFIG_CRYPTO_DEV_OMAP_AES) += omap-aes.o obj-$(CONFIG_CRYPTO_DEV_PICOXCELL) += picoxcell_crypto.o obj-$(CONFIG_CRYPTO_DEV_SAHARA) += sahara.o +obj-$(CONFIG_CRYPTO_DEV_DCP) += dcp.o obj-$(CONFIG_CRYPTO_DEV_S5P) += s5p-sss.o obj-$(CONFIG_CRYPTO_DEV_TEGRA_AES) += tegra-aes.o obj-$(CONFIG_CRYPTO_DEV_UX500) += ux500/ diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index 6e94bcd9467..f5d6deced1c 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -202,6 +202,7 @@ static int caam_probe(struct platform_device *pdev) #ifdef CONFIG_DEBUG_FS struct caam_perfmon *perfmon; #endif + u64 cha_vid; ctrlpriv = kzalloc(sizeof(struct caam_drv_private), GFP_KERNEL); if (!ctrlpriv) @@ -293,11 +294,14 @@ static int caam_probe(struct platform_device *pdev) return -ENOMEM; } + cha_vid = rd_reg64(&topregs->ctrl.perfmon.cha_id); + /* - * RNG4 based SECs (v5+) need special initialization prior - * to executing any descriptors + * If SEC has RNG version >= 4 and RNG state handle has not been + * already instantiated ,do RNG instantiation */ - if (of_device_is_compatible(nprop, "fsl,sec-v5.0")) { + if ((cha_vid & CHA_ID_RNG_MASK) >> CHA_ID_RNG_SHIFT >= 4 && + !(rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IF0)) { kick_trng(pdev); ret = instantiate_rng(ctrlpriv->jrdev[0]); if (ret) { diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h index f7f833be8c6..53b296f78b0 100644 --- a/drivers/crypto/caam/desc.h +++ b/drivers/crypto/caam/desc.h @@ -231,7 +231,12 @@ struct sec4_sg_entry { #define LDST_SRCDST_WORD_PKHA_B_SZ (0x11 << LDST_SRCDST_SHIFT) #define LDST_SRCDST_WORD_PKHA_N_SZ (0x12 << LDST_SRCDST_SHIFT) #define LDST_SRCDST_WORD_PKHA_E_SZ (0x13 << LDST_SRCDST_SHIFT) +#define LDST_SRCDST_WORD_CLASS_CTX (0x20 << LDST_SRCDST_SHIFT) #define LDST_SRCDST_WORD_DESCBUF (0x40 << LDST_SRCDST_SHIFT) +#define LDST_SRCDST_WORD_DESCBUF_JOB (0x41 << LDST_SRCDST_SHIFT) +#define LDST_SRCDST_WORD_DESCBUF_SHARED (0x42 << LDST_SRCDST_SHIFT) +#define LDST_SRCDST_WORD_DESCBUF_JOB_WE (0x45 << LDST_SRCDST_SHIFT) +#define LDST_SRCDST_WORD_DESCBUF_SHARED_WE (0x46 << LDST_SRCDST_SHIFT) #define LDST_SRCDST_WORD_INFO_FIFO (0x7a << LDST_SRCDST_SHIFT) /* Offset in source/destination */ @@ -366,6 +371,7 @@ struct sec4_sg_entry { #define FIFOLD_TYPE_LAST2FLUSH1 (0x05 << FIFOLD_TYPE_SHIFT) #define FIFOLD_TYPE_LASTBOTH (0x06 << FIFOLD_TYPE_SHIFT) #define FIFOLD_TYPE_LASTBOTHFL (0x07 << FIFOLD_TYPE_SHIFT) +#define FIFOLD_TYPE_NOINFOFIFO (0x0F << FIFOLD_TYPE_SHIFT) #define FIFOLDST_LEN_MASK 0xffff #define FIFOLDST_EXT_LEN_MASK 0xffffffff @@ -1294,10 +1300,10 @@ struct sec4_sg_entry { #define SQOUT_SGF 0x01000000 /* Appends to a previous pointer */ -#define SQOUT_PRE 0x00800000 +#define SQOUT_PRE SQIN_PRE /* Restore sequence with pointer/length */ -#define SQOUT_RTO 0x00200000 +#define SQOUT_RTO SQIN_RTO /* Use extended length following pointer */ #define SQOUT_EXT 0x00400000 @@ -1359,6 +1365,7 @@ struct sec4_sg_entry { #define MOVE_DEST_MATH3 (0x07 << MOVE_DEST_SHIFT) #define MOVE_DEST_CLASS1INFIFO (0x08 << MOVE_DEST_SHIFT) #define MOVE_DEST_CLASS2INFIFO (0x09 << MOVE_DEST_SHIFT) +#define MOVE_DEST_INFIFO_NOINFO (0x0a << MOVE_DEST_SHIFT) #define MOVE_DEST_PK_A (0x0c << MOVE_DEST_SHIFT) #define MOVE_DEST_CLASS1KEY (0x0d << MOVE_DEST_SHIFT) #define MOVE_DEST_CLASS2KEY (0x0e << MOVE_DEST_SHIFT) @@ -1411,6 +1418,7 @@ struct sec4_sg_entry { #define MATH_SRC0_REG2 (0x02 << MATH_SRC0_SHIFT) #define MATH_SRC0_REG3 (0x03 << MATH_SRC0_SHIFT) #define MATH_SRC0_IMM (0x04 << MATH_SRC0_SHIFT) +#define MATH_SRC0_DPOVRD (0x07 << MATH_SRC0_SHIFT) #define MATH_SRC0_SEQINLEN (0x08 << MATH_SRC0_SHIFT) #define MATH_SRC0_SEQOUTLEN (0x09 << MATH_SRC0_SHIFT) #define MATH_SRC0_VARSEQINLEN (0x0a << MATH_SRC0_SHIFT) @@ -1425,6 +1433,7 @@ struct sec4_sg_entry { #define MATH_SRC1_REG2 (0x02 << MATH_SRC1_SHIFT) #define MATH_SRC1_REG3 (0x03 << MATH_SRC1_SHIFT) #define MATH_SRC1_IMM (0x04 << MATH_SRC1_SHIFT) +#define MATH_SRC1_DPOVRD (0x07 << MATH_SRC0_SHIFT) #define MATH_SRC1_INFIFO (0x0a << MATH_SRC1_SHIFT) #define MATH_SRC1_OUTFIFO (0x0b << MATH_SRC1_SHIFT) #define MATH_SRC1_ONE (0x0c << MATH_SRC1_SHIFT) @@ -1600,4 +1609,13 @@ struct sec4_sg_entry { #define NFIFOENTRY_PLEN_SHIFT 0 #define NFIFOENTRY_PLEN_MASK (0xFF << NFIFOENTRY_PLEN_SHIFT) +/* Append Load Immediate Command */ +#define FD_CMD_APPEND_LOAD_IMMEDIATE 0x80000000 + +/* Set SEQ LIODN equal to the Non-SEQ LIODN for the job */ +#define FD_CMD_SET_SEQ_LIODN_EQUAL_NONSEQ_LIODN 0x40000000 + +/* Frame Descriptor Command for Replacement Job Descriptor */ +#define FD_CMD_REPLACE_JOB_DESC 0x20000000 + #endif /* DESC_H */ diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h index c85c1f05840..fe3bfd1b08c 100644 --- a/drivers/crypto/caam/desc_constr.h +++ b/drivers/crypto/caam/desc_constr.h @@ -110,6 +110,26 @@ static inline void append_cmd(u32 *desc, u32 command) (*desc)++; } +#define append_u32 append_cmd + +static inline void append_u64(u32 *desc, u64 data) +{ + u32 *offset = desc_end(desc); + + *offset = upper_32_bits(data); + *(++offset) = lower_32_bits(data); + + (*desc) += 2; +} + +/* Write command without affecting header, and return pointer to next word */ +static inline u32 *write_cmd(u32 *desc, u32 command) +{ + *desc = command; + + return desc + 1; +} + static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len, u32 command) { @@ -122,7 +142,8 @@ static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr, unsigned int len, u32 command) { append_cmd(desc, command); - append_ptr(desc, ptr); + if (!(command & (SQIN_RTO | SQIN_PRE))) + append_ptr(desc, ptr); append_cmd(desc, len); } @@ -176,17 +197,36 @@ static inline void append_##cmd(u32 *desc, dma_addr_t ptr, unsigned int len, \ } APPEND_CMD_PTR(key, KEY) APPEND_CMD_PTR(load, LOAD) -APPEND_CMD_PTR(store, STORE) APPEND_CMD_PTR(fifo_load, FIFO_LOAD) APPEND_CMD_PTR(fifo_store, FIFO_STORE) +static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len, + u32 options) +{ + u32 cmd_src; + + cmd_src = options & LDST_SRCDST_MASK; + + append_cmd(desc, CMD_STORE | options | len); + + /* The following options do not require pointer */ + if (!(cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED || + cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB || + cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB_WE || + cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED_WE)) + append_ptr(desc, ptr); +} + #define APPEND_SEQ_PTR_INTLEN(cmd, op) \ static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \ unsigned int len, \ u32 options) \ { \ PRINT_POS; \ - append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \ + if (options & (SQIN_RTO | SQIN_PRE)) \ + append_cmd(desc, CMD_SEQ_##op##_PTR | len | options); \ + else \ + append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \ } APPEND_SEQ_PTR_INTLEN(in, IN) APPEND_SEQ_PTR_INTLEN(out, OUT) @@ -259,7 +299,7 @@ APPEND_CMD_RAW_IMM(load, LOAD, u32); */ #define APPEND_MATH(op, desc, dest, src_0, src_1, len) \ append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \ - MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32) (len & MATH_LEN_MASK)); + MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32)len); #define append_math_add(desc, dest, src0, src1, len) \ APPEND_MATH(ADD, desc, dest, src0, src1, len) @@ -279,6 +319,8 @@ append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \ APPEND_MATH(LSHIFT, desc, dest, src0, src1, len) #define append_math_rshift(desc, dest, src0, src1, len) \ APPEND_MATH(RSHIFT, desc, dest, src0, src1, len) +#define append_math_ldshift(desc, dest, src0, src1, len) \ + APPEND_MATH(SHLD, desc, dest, src0, src1, len) /* Exactly one source is IMM. Data is passed in as u32 value */ #define APPEND_MATH_IMM_u32(op, desc, dest, src_0, src_1, data) \ @@ -305,3 +347,34 @@ do { \ APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data) #define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \ APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data) + +/* Exactly one source is IMM. Data is passed in as u64 value */ +#define APPEND_MATH_IMM_u64(op, desc, dest, src_0, src_1, data) \ +do { \ + u32 upper = (data >> 16) >> 16; \ + APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ * 2 | \ + (upper ? 0 : MATH_IFB)); \ + if (upper) \ + append_u64(desc, data); \ + else \ + append_u32(desc, data); \ +} while (0) + +#define append_math_add_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(ADD, desc, dest, src0, src1, data) +#define append_math_sub_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(SUB, desc, dest, src0, src1, data) +#define append_math_add_c_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(ADDC, desc, dest, src0, src1, data) +#define append_math_sub_b_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(SUBB, desc, dest, src0, src1, data) +#define append_math_and_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(AND, desc, dest, src0, src1, data) +#define append_math_or_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(OR, desc, dest, src0, src1, data) +#define append_math_xor_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(XOR, desc, dest, src0, src1, data) +#define append_math_lshift_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(LSHIFT, desc, dest, src0, src1, data) +#define append_math_rshift_imm_u64(desc, dest, src0, src1, data) \ + APPEND_MATH_IMM_u64(RSHIFT, desc, dest, src0, src1, data) diff --git a/drivers/crypto/caam/pdb.h b/drivers/crypto/caam/pdb.h index 62950d22ac1..3a87c0cf879 100644 --- a/drivers/crypto/caam/pdb.h +++ b/drivers/crypto/caam/pdb.h @@ -44,6 +44,7 @@ #define PDBOPTS_ESP_IPHDRSRC 0x08 /* IP header comes from PDB (encap) */ #define PDBOPTS_ESP_INCIPHDR 0x04 /* Prepend IP header to output frame */ #define PDBOPTS_ESP_IPVSN 0x02 /* process IPv6 header */ +#define PDBOPTS_ESP_AOFL 0x04 /* adjust out frame len (decap, SEC>=5.3)*/ #define PDBOPTS_ESP_TUNNEL 0x01 /* tunnel mode next-header byte */ #define PDBOPTS_ESP_IPV6 0x02 /* ip header version is V6 */ #define PDBOPTS_ESP_DIFFSERV 0x40 /* copy TOS/TC from inner iphdr */ diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h index cd6fedad993..c09142fc13e 100644 --- a/drivers/crypto/caam/regs.h +++ b/drivers/crypto/caam/regs.h @@ -117,6 +117,43 @@ struct jr_outentry { #define CHA_NUM_DECONUM_SHIFT 56 #define CHA_NUM_DECONUM_MASK (0xfull << CHA_NUM_DECONUM_SHIFT) +/* CHA Version IDs */ +#define CHA_ID_AES_SHIFT 0 +#define CHA_ID_AES_MASK (0xfull << CHA_ID_AES_SHIFT) + +#define CHA_ID_DES_SHIFT 4 +#define CHA_ID_DES_MASK (0xfull << CHA_ID_DES_SHIFT) + +#define CHA_ID_ARC4_SHIFT 8 +#define CHA_ID_ARC4_MASK (0xfull << CHA_ID_ARC4_SHIFT) + +#define CHA_ID_MD_SHIFT 12 +#define CHA_ID_MD_MASK (0xfull << CHA_ID_MD_SHIFT) + +#define CHA_ID_RNG_SHIFT 16 +#define CHA_ID_RNG_MASK (0xfull << CHA_ID_RNG_SHIFT) + +#define CHA_ID_SNW8_SHIFT 20 +#define CHA_ID_SNW8_MASK (0xfull << CHA_ID_SNW8_SHIFT) + +#define CHA_ID_KAS_SHIFT 24 +#define CHA_ID_KAS_MASK (0xfull << CHA_ID_KAS_SHIFT) + +#define CHA_ID_PK_SHIFT 28 +#define CHA_ID_PK_MASK (0xfull << CHA_ID_PK_SHIFT) + +#define CHA_ID_CRC_SHIFT 32 +#define CHA_ID_CRC_MASK (0xfull << CHA_ID_CRC_SHIFT) + +#define CHA_ID_SNW9_SHIFT 36 +#define CHA_ID_SNW9_MASK (0xfull << CHA_ID_SNW9_SHIFT) + +#define CHA_ID_DECO_SHIFT 56 +#define CHA_ID_DECO_MASK (0xfull << CHA_ID_DECO_SHIFT) + +#define CHA_ID_JR_SHIFT 60 +#define CHA_ID_JR_MASK (0xfull << CHA_ID_JR_SHIFT) + struct sec_vid { u16 ip_id; u8 maj_rev; @@ -228,7 +265,10 @@ struct rng4tst { u32 rtfrqmax; /* PRGM=1: freq. count max. limit register */ u32 rtfrqcnt; /* PRGM=0: freq. count register */ }; - u32 rsvd1[56]; + u32 rsvd1[40]; +#define RDSTA_IF0 0x00000001 + u32 rdsta; + u32 rsvd2[15]; }; /* diff --git a/drivers/crypto/dcp.c b/drivers/crypto/dcp.c new file mode 100644 index 00000000000..a8a7dd4b0d2 --- /dev/null +++ b/drivers/crypto/dcp.c @@ -0,0 +1,912 @@ +/* + * Cryptographic API. + * + * Support for DCP cryptographic accelerator. + * + * Copyright (c) 2013 + * Author: Tobias Rauter <tobias.rauter@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Based on tegra-aes.c, dcp.c (from freescale SDK) and sahara.c + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <linux/mutex.h> +#include <linux/interrupt.h> +#include <linux/completion.h> +#include <linux/workqueue.h> +#include <linux/delay.h> +#include <linux/crypto.h> +#include <linux/miscdevice.h> + +#include <crypto/scatterwalk.h> +#include <crypto/aes.h> + + +/* IOCTL for DCP OTP Key AES - taken from Freescale's SDK*/ +#define DBS_IOCTL_BASE 'd' +#define DBS_ENC _IOW(DBS_IOCTL_BASE, 0x00, uint8_t[16]) +#define DBS_DEC _IOW(DBS_IOCTL_BASE, 0x01, uint8_t[16]) + +/* DCP channel used for AES */ +#define USED_CHANNEL 1 +/* Ring Buffers' maximum size */ +#define DCP_MAX_PKG 20 + +/* Control Register */ +#define DCP_REG_CTRL 0x000 +#define DCP_CTRL_SFRST (1<<31) +#define DCP_CTRL_CLKGATE (1<<30) +#define DCP_CTRL_CRYPTO_PRESENT (1<<29) +#define DCP_CTRL_SHA_PRESENT (1<<28) +#define DCP_CTRL_GATHER_RES_WRITE (1<<23) +#define DCP_CTRL_ENABLE_CONTEXT_CACHE (1<<22) +#define DCP_CTRL_ENABLE_CONTEXT_SWITCH (1<<21) +#define DCP_CTRL_CH_IRQ_E_0 0x01 +#define DCP_CTRL_CH_IRQ_E_1 0x02 +#define DCP_CTRL_CH_IRQ_E_2 0x04 +#define DCP_CTRL_CH_IRQ_E_3 0x08 + +/* Status register */ +#define DCP_REG_STAT 0x010 +#define DCP_STAT_OTP_KEY_READY (1<<28) +#define DCP_STAT_CUR_CHANNEL(stat) ((stat>>24)&0x0F) +#define DCP_STAT_READY_CHANNEL(stat) ((stat>>16)&0x0F) +#define DCP_STAT_IRQ(stat) (stat&0x0F) +#define DCP_STAT_CHAN_0 (0x01) +#define DCP_STAT_CHAN_1 (0x02) +#define DCP_STAT_CHAN_2 (0x04) +#define DCP_STAT_CHAN_3 (0x08) + +/* Channel Control Register */ +#define DCP_REG_CHAN_CTRL 0x020 +#define DCP_CHAN_CTRL_CH0_IRQ_MERGED (1<<16) +#define DCP_CHAN_CTRL_HIGH_PRIO_0 (0x0100) +#define DCP_CHAN_CTRL_HIGH_PRIO_1 (0x0200) +#define DCP_CHAN_CTRL_HIGH_PRIO_2 (0x0400) +#define DCP_CHAN_CTRL_HIGH_PRIO_3 (0x0800) +#define DCP_CHAN_CTRL_ENABLE_0 (0x01) +#define DCP_CHAN_CTRL_ENABLE_1 (0x02) +#define DCP_CHAN_CTRL_ENABLE_2 (0x04) +#define DCP_CHAN_CTRL_ENABLE_3 (0x08) + +/* + * Channel Registers: + * The DCP has 4 channels. Each of this channels + * has 4 registers (command pointer, semaphore, status and options). + * The address of register REG of channel CHAN is obtained by + * dcp_chan_reg(REG, CHAN) + */ +#define DCP_REG_CHAN_PTR 0x00000100 +#define DCP_REG_CHAN_SEMA 0x00000110 +#define DCP_REG_CHAN_STAT 0x00000120 +#define DCP_REG_CHAN_OPT 0x00000130 + +#define DCP_CHAN_STAT_NEXT_CHAIN_IS_0 0x010000 +#define DCP_CHAN_STAT_NO_CHAIN 0x020000 +#define DCP_CHAN_STAT_CONTEXT_ERROR 0x030000 +#define DCP_CHAN_STAT_PAYLOAD_ERROR 0x040000 +#define DCP_CHAN_STAT_INVALID_MODE 0x050000 +#define DCP_CHAN_STAT_PAGEFAULT 0x40 +#define DCP_CHAN_STAT_DST 0x20 +#define DCP_CHAN_STAT_SRC 0x10 +#define DCP_CHAN_STAT_PACKET 0x08 +#define DCP_CHAN_STAT_SETUP 0x04 +#define DCP_CHAN_STAT_MISMATCH 0x02 + +/* hw packet control*/ + +#define DCP_PKT_PAYLOAD_KEY (1<<11) +#define DCP_PKT_OTP_KEY (1<<10) +#define DCP_PKT_CIPHER_INIT (1<<9) +#define DCP_PKG_CIPHER_ENCRYPT (1<<8) +#define DCP_PKT_CIPHER_ENABLE (1<<5) +#define DCP_PKT_DECR_SEM (1<<1) +#define DCP_PKT_CHAIN (1<<2) +#define DCP_PKT_IRQ 1 + +#define DCP_PKT_MODE_CBC (1<<4) +#define DCP_PKT_KEYSELECT_OTP (0xFF<<8) + +/* cipher flags */ +#define DCP_ENC 0x0001 +#define DCP_DEC 0x0002 +#define DCP_ECB 0x0004 +#define DCP_CBC 0x0008 +#define DCP_CBC_INIT 0x0010 +#define DCP_NEW_KEY 0x0040 +#define DCP_OTP_KEY 0x0080 +#define DCP_AES 0x1000 + +/* DCP Flags */ +#define DCP_FLAG_BUSY 0x01 +#define DCP_FLAG_PRODUCING 0x02 + +/* clock defines */ +#define CLOCK_ON 1 +#define CLOCK_OFF 0 + +struct dcp_dev_req_ctx { + int mode; +}; + +struct dcp_op { + unsigned int flags; + u8 key[AES_KEYSIZE_128]; + int keylen; + + struct ablkcipher_request *req; + struct crypto_ablkcipher *fallback; + + uint32_t stat; + uint32_t pkt1; + uint32_t pkt2; + struct ablkcipher_walk walk; +}; + +struct dcp_dev { + struct device *dev; + void __iomem *dcp_regs_base; + + int dcp_vmi_irq; + int dcp_irq; + + spinlock_t queue_lock; + struct crypto_queue queue; + + uint32_t pkt_produced; + uint32_t pkt_consumed; + + struct dcp_hw_packet *hw_pkg[DCP_MAX_PKG]; + dma_addr_t hw_phys_pkg; + + /* [KEY][IV] Both with 16 Bytes */ + u8 *payload_base; + dma_addr_t payload_base_dma; + + + struct tasklet_struct done_task; + struct tasklet_struct queue_task; + struct timer_list watchdog; + + unsigned long flags; + + struct dcp_op *ctx; + + struct miscdevice dcp_bootstream_misc; +}; + +struct dcp_hw_packet { + uint32_t next; + uint32_t pkt1; + uint32_t pkt2; + uint32_t src; + uint32_t dst; + uint32_t size; + uint32_t payload; + uint32_t stat; +}; + +static struct dcp_dev *global_dev; + +static inline u32 dcp_chan_reg(u32 reg, int chan) +{ + return reg + (chan) * 0x40; +} + +static inline void dcp_write(struct dcp_dev *dev, u32 data, u32 reg) +{ + writel(data, dev->dcp_regs_base + reg); +} + +static inline void dcp_set(struct dcp_dev *dev, u32 data, u32 reg) +{ + writel(data, dev->dcp_regs_base + (reg | 0x04)); +} + +static inline void dcp_clear(struct dcp_dev *dev, u32 data, u32 reg) +{ + writel(data, dev->dcp_regs_base + (reg | 0x08)); +} + +static inline void dcp_toggle(struct dcp_dev *dev, u32 data, u32 reg) +{ + writel(data, dev->dcp_regs_base + (reg | 0x0C)); +} + +static inline unsigned int dcp_read(struct dcp_dev *dev, u32 reg) +{ + return readl(dev->dcp_regs_base + reg); +} + +static void dcp_dma_unmap(struct dcp_dev *dev, struct dcp_hw_packet *pkt) +{ + dma_unmap_page(dev->dev, pkt->src, pkt->size, DMA_TO_DEVICE); + dma_unmap_page(dev->dev, pkt->dst, pkt->size, DMA_FROM_DEVICE); + dev_dbg(dev->dev, "unmap packet %x", (unsigned int) pkt); +} + +static int dcp_dma_map(struct dcp_dev *dev, + struct ablkcipher_walk *walk, struct dcp_hw_packet *pkt) +{ + dev_dbg(dev->dev, "map packet %x", (unsigned int) pkt); + /* align to length = 16 */ + pkt->size = walk->nbytes - (walk->nbytes % 16); + + pkt->src = dma_map_page(dev->dev, walk->src.page, walk->src.offset, + pkt->size, DMA_TO_DEVICE); + + if (pkt->src == 0) { + dev_err(dev->dev, "Unable to map src"); + return -ENOMEM; + } + + pkt->dst = dma_map_page(dev->dev, walk->dst.page, walk->dst.offset, + pkt->size, DMA_FROM_DEVICE); + + if (pkt->dst == 0) { + dev_err(dev->dev, "Unable to map dst"); + dma_unmap_page(dev->dev, pkt->src, pkt->size, DMA_TO_DEVICE); + return -ENOMEM; + } + + return 0; +} + +static void dcp_op_one(struct dcp_dev *dev, struct dcp_hw_packet *pkt, + uint8_t last) +{ + struct dcp_op *ctx = dev->ctx; + pkt->pkt1 = ctx->pkt1; + pkt->pkt2 = ctx->pkt2; + + pkt->payload = (u32) dev->payload_base_dma; + pkt->stat = 0; + + if (ctx->flags & DCP_CBC_INIT) { + pkt->pkt1 |= DCP_PKT_CIPHER_INIT; + ctx->flags &= ~DCP_CBC_INIT; + } + + mod_timer(&dev->watchdog, jiffies + msecs_to_jiffies(500)); + pkt->pkt1 |= DCP_PKT_IRQ; + if (!last) + pkt->pkt1 |= DCP_PKT_CHAIN; + + dev->pkt_produced++; + + dcp_write(dev, 1, + dcp_chan_reg(DCP_REG_CHAN_SEMA, USED_CHANNEL)); +} + +static void dcp_op_proceed(struct dcp_dev *dev) +{ + struct dcp_op *ctx = dev->ctx; + struct dcp_hw_packet *pkt; + + while (ctx->walk.nbytes) { + int err = 0; + + pkt = dev->hw_pkg[dev->pkt_produced % DCP_MAX_PKG]; + err = dcp_dma_map(dev, &ctx->walk, pkt); + if (err) { + dev->ctx->stat |= err; + /* start timer to wait for already set up calls */ + mod_timer(&dev->watchdog, + jiffies + msecs_to_jiffies(500)); + break; + } + + + err = ctx->walk.nbytes - pkt->size; + ablkcipher_walk_done(dev->ctx->req, &dev->ctx->walk, err); + + dcp_op_one(dev, pkt, ctx->walk.nbytes == 0); + /* we have to wait if no space is left in buffer */ + if (dev->pkt_produced - dev->pkt_consumed == DCP_MAX_PKG) + break; + } + clear_bit(DCP_FLAG_PRODUCING, &dev->flags); +} + +static void dcp_op_start(struct dcp_dev *dev, uint8_t use_walk) +{ + struct dcp_op *ctx = dev->ctx; + + if (ctx->flags & DCP_NEW_KEY) { + memcpy(dev->payload_base, ctx->key, ctx->keylen); + ctx->flags &= ~DCP_NEW_KEY; + } + + ctx->pkt1 = 0; + ctx->pkt1 |= DCP_PKT_CIPHER_ENABLE; + ctx->pkt1 |= DCP_PKT_DECR_SEM; + + if (ctx->flags & DCP_OTP_KEY) + ctx->pkt1 |= DCP_PKT_OTP_KEY; + else + ctx->pkt1 |= DCP_PKT_PAYLOAD_KEY; + + if (ctx->flags & DCP_ENC) + ctx->pkt1 |= DCP_PKG_CIPHER_ENCRYPT; + + ctx->pkt2 = 0; + if (ctx->flags & DCP_CBC) + ctx->pkt2 |= DCP_PKT_MODE_CBC; + + dev->pkt_produced = 0; + dev->pkt_consumed = 0; + + ctx->stat = 0; + dcp_clear(dev, -1, dcp_chan_reg(DCP_REG_CHAN_STAT, USED_CHANNEL)); + dcp_write(dev, (u32) dev->hw_phys_pkg, + dcp_chan_reg(DCP_REG_CHAN_PTR, USED_CHANNEL)); + + set_bit(DCP_FLAG_PRODUCING, &dev->flags); + + if (use_walk) { + ablkcipher_walk_init(&ctx->walk, ctx->req->dst, + ctx->req->src, ctx->req->nbytes); + ablkcipher_walk_phys(ctx->req, &ctx->walk); + dcp_op_proceed(dev); + } else { + dcp_op_one(dev, dev->hw_pkg[0], 1); + clear_bit(DCP_FLAG_PRODUCING, &dev->flags); + } +} + +static void dcp_done_task(unsigned long data) +{ + struct dcp_dev *dev = (struct dcp_dev *)data; + struct dcp_hw_packet *last_packet; + int fin; + fin = 0; + + for (last_packet = dev->hw_pkg[(dev->pkt_consumed) % DCP_MAX_PKG]; + last_packet->stat == 1; + last_packet = + dev->hw_pkg[++(dev->pkt_consumed) % DCP_MAX_PKG]) { + + dcp_dma_unmap(dev, last_packet); + last_packet->stat = 0; + fin++; + } + /* the last call of this function already consumed this IRQ's packet */ + if (fin == 0) + return; + + dev_dbg(dev->dev, + "Packet(s) done with status %x; finished: %d, produced:%d, complete consumed: %d", + dev->ctx->stat, fin, dev->pkt_produced, dev->pkt_consumed); + + last_packet = dev->hw_pkg[(dev->pkt_consumed - 1) % DCP_MAX_PKG]; + if (!dev->ctx->stat && last_packet->pkt1 & DCP_PKT_CHAIN) { + if (!test_and_set_bit(DCP_FLAG_PRODUCING, &dev->flags)) + dcp_op_proceed(dev); + return; + } + + while (unlikely(dev->pkt_consumed < dev->pkt_produced)) { + dcp_dma_unmap(dev, + dev->hw_pkg[dev->pkt_consumed++ % DCP_MAX_PKG]); + } + + if (dev->ctx->flags & DCP_OTP_KEY) { + /* we used the miscdevice, no walk to finish */ + clear_bit(DCP_FLAG_BUSY, &dev->flags); + return; + } + + ablkcipher_walk_complete(&dev->ctx->walk); + dev->ctx->req->base.complete(&dev->ctx->req->base, + dev->ctx->stat); + dev->ctx->req = NULL; + /* in case there are other requests in the queue */ + tasklet_schedule(&dev->queue_task); +} + +static void dcp_watchdog(unsigned long data) +{ + struct dcp_dev *dev = (struct dcp_dev *)data; + dev->ctx->stat |= dcp_read(dev, + dcp_chan_reg(DCP_REG_CHAN_STAT, USED_CHANNEL)); + + dev_err(dev->dev, "Timeout, Channel status: %x", dev->ctx->stat); + + if (!dev->ctx->stat) + dev->ctx->stat = -ETIMEDOUT; + + dcp_done_task(data); +} + + +static irqreturn_t dcp_common_irq(int irq, void *context) +{ + u32 msk; + struct dcp_dev *dev = (struct dcp_dev *) context; + + del_timer(&dev->watchdog); + + msk = DCP_STAT_IRQ(dcp_read(dev, DCP_REG_STAT)); + dcp_clear(dev, msk, DCP_REG_STAT); + if (msk == 0) + return IRQ_NONE; + + dev->ctx->stat |= dcp_read(dev, + dcp_chan_reg(DCP_REG_CHAN_STAT, USED_CHANNEL)); + + if (msk & DCP_STAT_CHAN_1) + tasklet_schedule(&dev->done_task); + + return IRQ_HANDLED; +} + +static irqreturn_t dcp_vmi_irq(int irq, void *context) +{ + return dcp_common_irq(irq, context); +} + +static irqreturn_t dcp_irq(int irq, void *context) +{ + return dcp_common_irq(irq, context); +} + +static void dcp_crypt(struct dcp_dev *dev, struct dcp_op *ctx) +{ + dev->ctx = ctx; + + if ((ctx->flags & DCP_CBC) && ctx->req->info) { + ctx->flags |= DCP_CBC_INIT; + memcpy(dev->payload_base + AES_KEYSIZE_128, + ctx->req->info, AES_KEYSIZE_128); + } + + dcp_op_start(dev, 1); +} + +static void dcp_queue_task(unsigned long data) +{ + struct dcp_dev *dev = (struct dcp_dev *) data; + struct crypto_async_request *async_req, *backlog; + struct crypto_ablkcipher *tfm; + struct dcp_op *ctx; + struct dcp_dev_req_ctx *rctx; + struct ablkcipher_request *req; + unsigned long flags; + + spin_lock_irqsave(&dev->queue_lock, flags); + + backlog = crypto_get_backlog(&dev->queue); + async_req = crypto_dequeue_request(&dev->queue); + + spin_unlock_irqrestore(&dev->queue_lock, flags); + + if (!async_req) + goto ret_nothing_done; + + if (backlog) + backlog->complete(backlog, -EINPROGRESS); + + req = ablkcipher_request_cast(async_req); + tfm = crypto_ablkcipher_reqtfm(req); + rctx = ablkcipher_request_ctx(req); + ctx = crypto_ablkcipher_ctx(tfm); + + if (!req->src || !req->dst) + goto ret_nothing_done; + + ctx->flags |= rctx->mode; + ctx->req = req; + + dcp_crypt(dev, ctx); + + return; + +ret_nothing_done: + clear_bit(DCP_FLAG_BUSY, &dev->flags); +} + + +static int dcp_cra_init(struct crypto_tfm *tfm) +{ + const char *name = tfm->__crt_alg->cra_name; + struct dcp_op *ctx = crypto_tfm_ctx(tfm); + + tfm->crt_ablkcipher.reqsize = sizeof(struct dcp_dev_req_ctx); + + ctx->fallback = crypto_alloc_ablkcipher(name, 0, + CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK); + + if (IS_ERR(ctx->fallback)) { + dev_err(global_dev->dev, "Error allocating fallback algo %s\n", + name); + return PTR_ERR(ctx->fallback); + } + + return 0; +} + +static void dcp_cra_exit(struct crypto_tfm *tfm) +{ + struct dcp_op *ctx = crypto_tfm_ctx(tfm); + + if (ctx->fallback) + crypto_free_ablkcipher(ctx->fallback); + + ctx->fallback = NULL; +} + +/* async interface */ +static int dcp_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, + unsigned int len) +{ + struct dcp_op *ctx = crypto_ablkcipher_ctx(tfm); + unsigned int ret = 0; + ctx->keylen = len; + ctx->flags = 0; + if (len == AES_KEYSIZE_128) { + if (memcmp(ctx->key, key, AES_KEYSIZE_128)) { + memcpy(ctx->key, key, len); + ctx->flags |= DCP_NEW_KEY; + } + return 0; + } + + ctx->fallback->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK; + ctx->fallback->base.crt_flags |= + (tfm->base.crt_flags & CRYPTO_TFM_REQ_MASK); + + ret = crypto_ablkcipher_setkey(ctx->fallback, key, len); + if (ret) { + struct crypto_tfm *tfm_aux = crypto_ablkcipher_tfm(tfm); + + tfm_aux->crt_flags &= ~CRYPTO_TFM_RES_MASK; + tfm_aux->crt_flags |= + (ctx->fallback->base.crt_flags & CRYPTO_TFM_RES_MASK); + } + return ret; +} + +static int dcp_aes_cbc_crypt(struct ablkcipher_request *req, int mode) +{ + struct dcp_dev_req_ctx *rctx = ablkcipher_request_ctx(req); + struct dcp_dev *dev = global_dev; + unsigned long flags; + int err = 0; + + if (!IS_ALIGNED(req->nbytes, AES_BLOCK_SIZE)) + return -EINVAL; + + rctx->mode = mode; + + spin_lock_irqsave(&dev->queue_lock, flags); + err = ablkcipher_enqueue_request(&dev->queue, req); + spin_unlock_irqrestore(&dev->queue_lock, flags); + + flags = test_and_set_bit(DCP_FLAG_BUSY, &dev->flags); + + if (!(flags & DCP_FLAG_BUSY)) + tasklet_schedule(&dev->queue_task); + + return err; +} + +static int dcp_aes_cbc_encrypt(struct ablkcipher_request *req) +{ + struct crypto_tfm *tfm = + crypto_ablkcipher_tfm(crypto_ablkcipher_reqtfm(req)); + struct dcp_op *ctx = crypto_ablkcipher_ctx( + crypto_ablkcipher_reqtfm(req)); + + if (unlikely(ctx->keylen != AES_KEYSIZE_128)) { + int err = 0; + ablkcipher_request_set_tfm(req, ctx->fallback); + err = crypto_ablkcipher_encrypt(req); + ablkcipher_request_set_tfm(req, __crypto_ablkcipher_cast(tfm)); + return err; + } + + return dcp_aes_cbc_crypt(req, DCP_AES | DCP_ENC | DCP_CBC); +} + +static int dcp_aes_cbc_decrypt(struct ablkcipher_request *req) +{ + struct crypto_tfm *tfm = + crypto_ablkcipher_tfm(crypto_ablkcipher_reqtfm(req)); + struct dcp_op *ctx = crypto_ablkcipher_ctx( + crypto_ablkcipher_reqtfm(req)); + + if (unlikely(ctx->keylen != AES_KEYSIZE_128)) { + int err = 0; + ablkcipher_request_set_tfm(req, ctx->fallback); + err = crypto_ablkcipher_decrypt(req); + ablkcipher_request_set_tfm(req, __crypto_ablkcipher_cast(tfm)); + return err; + } + return dcp_aes_cbc_crypt(req, DCP_AES | DCP_DEC | DCP_CBC); +} + +static struct crypto_alg algs[] = { + { + .cra_name = "cbc(aes)", + .cra_driver_name = "dcp-cbc-aes", + .cra_alignmask = 3, + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize = AES_KEYSIZE_128, + .cra_type = &crypto_ablkcipher_type, + .cra_priority = 300, + .cra_u.ablkcipher = { + .min_keysize = AES_KEYSIZE_128, + .max_keysize = AES_KEYSIZE_128, + .setkey = dcp_aes_setkey, + .encrypt = dcp_aes_cbc_encrypt, + .decrypt = dcp_aes_cbc_decrypt, + .ivsize = AES_KEYSIZE_128, + } + + }, +}; + +/* DCP bootstream verification interface: uses OTP key for crypto */ +static int dcp_bootstream_open(struct inode *inode, struct file *file) +{ + file->private_data = container_of((file->private_data), + struct dcp_dev, dcp_bootstream_misc); + return 0; +} + +static long dcp_bootstream_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct dcp_dev *dev = (struct dcp_dev *) file->private_data; + void __user *argp = (void __user *)arg; + int ret; + + if (dev == NULL) + return -EBADF; + + if (cmd != DBS_ENC && cmd != DBS_DEC) + return -EINVAL; + + if (copy_from_user(dev->payload_base, argp, 16)) + return -EFAULT; + + if (test_and_set_bit(DCP_FLAG_BUSY, &dev->flags)) + return -EAGAIN; + + dev->ctx = kzalloc(sizeof(struct dcp_op), GFP_KERNEL); + if (!dev->ctx) { + dev_err(dev->dev, + "cannot allocate context for OTP crypto"); + clear_bit(DCP_FLAG_BUSY, &dev->flags); + return -ENOMEM; + } + + dev->ctx->flags = DCP_AES | DCP_ECB | DCP_OTP_KEY | DCP_CBC_INIT; + dev->ctx->flags |= (cmd == DBS_ENC) ? DCP_ENC : DCP_DEC; + dev->hw_pkg[0]->src = dev->payload_base_dma; + dev->hw_pkg[0]->dst = dev->payload_base_dma; + dev->hw_pkg[0]->size = 16; + + dcp_op_start(dev, 0); + + while (test_bit(DCP_FLAG_BUSY, &dev->flags)) + cpu_relax(); + + ret = dev->ctx->stat; + if (!ret && copy_to_user(argp, dev->payload_base, 16)) + ret = -EFAULT; + + kfree(dev->ctx); + + return ret; +} + +static const struct file_operations dcp_bootstream_fops = { + .owner = THIS_MODULE, + .unlocked_ioctl = dcp_bootstream_ioctl, + .open = dcp_bootstream_open, +}; + +static int dcp_probe(struct platform_device *pdev) +{ + struct dcp_dev *dev = NULL; + struct resource *r; + int i, ret, j; + + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + global_dev = dev; + dev->dev = &pdev->dev; + + platform_set_drvdata(pdev, dev); + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) { + dev_err(&pdev->dev, "failed to get IORESOURCE_MEM\n"); + return -ENXIO; + } + dev->dcp_regs_base = devm_ioremap(&pdev->dev, r->start, + resource_size(r)); + + dcp_set(dev, DCP_CTRL_SFRST, DCP_REG_CTRL); + udelay(10); + dcp_clear(dev, DCP_CTRL_SFRST | DCP_CTRL_CLKGATE, DCP_REG_CTRL); + + dcp_write(dev, DCP_CTRL_GATHER_RES_WRITE | + DCP_CTRL_ENABLE_CONTEXT_CACHE | DCP_CTRL_CH_IRQ_E_1, + DCP_REG_CTRL); + + dcp_write(dev, DCP_CHAN_CTRL_ENABLE_1, DCP_REG_CHAN_CTRL); + + for (i = 0; i < 4; i++) + dcp_clear(dev, -1, dcp_chan_reg(DCP_REG_CHAN_STAT, i)); + + dcp_clear(dev, -1, DCP_REG_STAT); + + + r = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!r) { + dev_err(&pdev->dev, "can't get IRQ resource (0)\n"); + return -EIO; + } + dev->dcp_vmi_irq = r->start; + ret = request_irq(dev->dcp_vmi_irq, dcp_vmi_irq, 0, "dcp", dev); + if (ret != 0) { + dev_err(&pdev->dev, "can't request_irq (0)\n"); + return -EIO; + } + + r = platform_get_resource(pdev, IORESOURCE_IRQ, 1); + if (!r) { + dev_err(&pdev->dev, "can't get IRQ resource (1)\n"); + ret = -EIO; + goto err_free_irq0; + } + dev->dcp_irq = r->start; + ret = request_irq(dev->dcp_irq, dcp_irq, 0, "dcp", dev); + if (ret != 0) { + dev_err(&pdev->dev, "can't request_irq (1)\n"); + ret = -EIO; + goto err_free_irq0; + } + + dev->hw_pkg[0] = dma_alloc_coherent(&pdev->dev, + DCP_MAX_PKG * sizeof(struct dcp_hw_packet), + &dev->hw_phys_pkg, + GFP_KERNEL); + if (!dev->hw_pkg[0]) { + dev_err(&pdev->dev, "Could not allocate hw descriptors\n"); + ret = -ENOMEM; + goto err_free_irq1; + } + + for (i = 1; i < DCP_MAX_PKG; i++) { + dev->hw_pkg[i - 1]->next = dev->hw_phys_pkg + + i * sizeof(struct dcp_hw_packet); + dev->hw_pkg[i] = dev->hw_pkg[i - 1] + 1; + } + dev->hw_pkg[i - 1]->next = dev->hw_phys_pkg; + + + dev->payload_base = dma_alloc_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, + &dev->payload_base_dma, GFP_KERNEL); + if (!dev->payload_base) { + dev_err(&pdev->dev, "Could not allocate memory for key\n"); + ret = -ENOMEM; + goto err_free_hw_packet; + } + tasklet_init(&dev->queue_task, dcp_queue_task, + (unsigned long) dev); + tasklet_init(&dev->done_task, dcp_done_task, + (unsigned long) dev); + spin_lock_init(&dev->queue_lock); + + crypto_init_queue(&dev->queue, 10); + + init_timer(&dev->watchdog); + dev->watchdog.function = &dcp_watchdog; + dev->watchdog.data = (unsigned long)dev; + + dev->dcp_bootstream_misc.minor = MISC_DYNAMIC_MINOR, + dev->dcp_bootstream_misc.name = "dcpboot", + dev->dcp_bootstream_misc.fops = &dcp_bootstream_fops, + ret = misc_register(&dev->dcp_bootstream_misc); + if (ret != 0) { + dev_err(dev->dev, "Unable to register misc device\n"); + goto err_free_key_iv; + } + + for (i = 0; i < ARRAY_SIZE(algs); i++) { + algs[i].cra_priority = 300; + algs[i].cra_ctxsize = sizeof(struct dcp_op); + algs[i].cra_module = THIS_MODULE; + algs[i].cra_init = dcp_cra_init; + algs[i].cra_exit = dcp_cra_exit; + if (crypto_register_alg(&algs[i])) { + dev_err(&pdev->dev, "register algorithm failed\n"); + ret = -ENOMEM; + goto err_unregister; + } + } + dev_notice(&pdev->dev, "DCP crypto enabled.!\n"); + + return 0; + +err_unregister: + for (j = 0; j < i; j++) + crypto_unregister_alg(&algs[j]); +err_free_key_iv: + dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base, + dev->payload_base_dma); +err_free_hw_packet: + dma_free_coherent(&pdev->dev, DCP_MAX_PKG * + sizeof(struct dcp_hw_packet), dev->hw_pkg[0], + dev->hw_phys_pkg); +err_free_irq1: + free_irq(dev->dcp_irq, dev); +err_free_irq0: + free_irq(dev->dcp_vmi_irq, dev); + + return ret; +} + +static int dcp_remove(struct platform_device *pdev) +{ + struct dcp_dev *dev; + int j; + dev = platform_get_drvdata(pdev); + + dma_free_coherent(&pdev->dev, + DCP_MAX_PKG * sizeof(struct dcp_hw_packet), + dev->hw_pkg[0], dev->hw_phys_pkg); + + dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base, + dev->payload_base_dma); + + free_irq(dev->dcp_irq, dev); + free_irq(dev->dcp_vmi_irq, dev); + + tasklet_kill(&dev->done_task); + tasklet_kill(&dev->queue_task); + + for (j = 0; j < ARRAY_SIZE(algs); j++) + crypto_unregister_alg(&algs[j]); + + misc_deregister(&dev->dcp_bootstream_misc); + + return 0; +} + +static struct of_device_id fs_dcp_of_match[] = { + { .compatible = "fsl-dcp"}, + {}, +}; + +static struct platform_driver fs_dcp_driver = { + .probe = dcp_probe, + .remove = dcp_remove, + .driver = { + .name = "fsl-dcp", + .owner = THIS_MODULE, + .of_match_table = fs_dcp_of_match + } +}; + +module_platform_driver(fs_dcp_driver); + + +MODULE_AUTHOR("Tobias Rauter <tobias.rauter@gmail.com>"); +MODULE_DESCRIPTION("Freescale DCP Crypto Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c index ebf130e894b..12fea3e2234 100644 --- a/drivers/crypto/hifn_795x.c +++ b/drivers/crypto/hifn_795x.c @@ -2676,7 +2676,7 @@ err_out_stop_device: hifn_reset_dma(dev, 1); hifn_stop_device(dev); err_out_free_irq: - free_irq(dev->irq, dev->name); + free_irq(dev->irq, dev); tasklet_kill(&dev->tasklet); err_out_free_desc: pci_free_consistent(pdev, sizeof(struct hifn_dma), @@ -2711,7 +2711,7 @@ static void hifn_remove(struct pci_dev *pdev) hifn_reset_dma(dev, 1); hifn_stop_device(dev); - free_irq(dev->irq, dev->name); + free_irq(dev->irq, dev); tasklet_kill(&dev->tasklet); hifn_flush(dev); diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index ce6290e5471..3374a3ebe4c 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -1146,7 +1146,6 @@ err_unmap_reg: err: kfree(cp); cpg = NULL; - platform_set_drvdata(pdev, NULL); return ret; } diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index ee15b0f7849..5f798058685 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -203,13 +203,6 @@ static void omap_aes_write_n(struct omap_aes_dev *dd, u32 offset, static int omap_aes_hw_init(struct omap_aes_dev *dd) { - /* - * clocks are enabled when request starts and disabled when finished. - * It may be long delays between requests. - * Device might go to off mode to save power. - */ - pm_runtime_get_sync(dd->dev); - if (!(dd->flags & FLAGS_INIT)) { dd->flags |= FLAGS_INIT; dd->err = 0; @@ -636,7 +629,6 @@ static void omap_aes_finish_req(struct omap_aes_dev *dd, int err) pr_debug("err: %d\n", err); - pm_runtime_put(dd->dev); dd->flags &= ~FLAGS_BUSY; req->base.complete(&req->base, err); @@ -837,8 +829,16 @@ static int omap_aes_ctr_decrypt(struct ablkcipher_request *req) static int omap_aes_cra_init(struct crypto_tfm *tfm) { - pr_debug("enter\n"); + struct omap_aes_dev *dd = NULL; + + /* Find AES device, currently picks the first device */ + spin_lock_bh(&list_lock); + list_for_each_entry(dd, &dev_list, list) { + break; + } + spin_unlock_bh(&list_lock); + pm_runtime_get_sync(dd->dev); tfm->crt_ablkcipher.reqsize = sizeof(struct omap_aes_reqctx); return 0; @@ -846,7 +846,16 @@ static int omap_aes_cra_init(struct crypto_tfm *tfm) static void omap_aes_cra_exit(struct crypto_tfm *tfm) { - pr_debug("enter\n"); + struct omap_aes_dev *dd = NULL; + + /* Find AES device, currently picks the first device */ + spin_lock_bh(&list_lock); + list_for_each_entry(dd, &dev_list, list) { + break; + } + spin_unlock_bh(&list_lock); + + pm_runtime_put_sync(dd->dev); } /* ********************** ALGS ************************************ */ @@ -1125,10 +1134,9 @@ static int omap_aes_probe(struct platform_device *pdev) if (err) goto err_res; - dd->io_base = devm_request_and_ioremap(dev, &res); - if (!dd->io_base) { - dev_err(dev, "can't ioremap\n"); - err = -ENOMEM; + dd->io_base = devm_ioremap_resource(dev, &res); + if (IS_ERR(dd->io_base)) { + err = PTR_ERR(dd->io_base); goto err_res; } dd->phys_base = res.start; diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index a1e1b4756ee..4bb67652c20 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -1686,10 +1686,9 @@ static int omap_sham_probe(struct platform_device *pdev) if (err) goto res_err; - dd->io_base = devm_request_and_ioremap(dev, &res); - if (!dd->io_base) { - dev_err(dev, "can't ioremap\n"); - err = -ENOMEM; + dd->io_base = devm_ioremap_resource(dev, &res); + if (IS_ERR(dd->io_base)) { + err = PTR_ERR(dd->io_base); goto res_err; } dd->phys_base = res.start; diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c index ac30724d923..888f7f4a6d3 100644 --- a/drivers/crypto/picoxcell_crypto.c +++ b/drivers/crypto/picoxcell_crypto.c @@ -1298,7 +1298,7 @@ static ssize_t spacc_stat_irq_thresh_store(struct device *dev, struct spacc_engine *engine = spacc_dev_to_engine(dev); unsigned long thresh; - if (strict_strtoul(buf, 0, &thresh)) + if (kstrtoul(buf, 0, &thresh)) return -EINVAL; thresh = clamp(thresh, 1UL, engine->fifo_sz - 1); diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c index 4b314326f48..cf149b19ff4 100644 --- a/drivers/crypto/s5p-sss.c +++ b/drivers/crypto/s5p-sss.c @@ -647,7 +647,6 @@ static int s5p_aes_probe(struct platform_device *pdev) clk_disable(pdata->clk); s5p_dev = NULL; - platform_set_drvdata(pdev, NULL); return err; } @@ -668,7 +667,6 @@ static int s5p_aes_remove(struct platform_device *pdev) clk_disable(pdata->clk); s5p_dev = NULL; - platform_set_drvdata(pdev, NULL); return 0; } diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c index 83d79b964d1..a999f537228 100644 --- a/drivers/crypto/ux500/cryp/cryp_core.c +++ b/drivers/crypto/ux500/cryp/cryp_core.c @@ -1629,7 +1629,7 @@ static int ux500_cryp_remove(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res) - release_mem_region(res->start, res->end - res->start + 1); + release_mem_region(res->start, resource_size(res)); kfree(device_data); diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h index a9c96d865ee..b3cb71f0d3b 100644 --- a/include/linux/crc-t10dif.h +++ b/include/linux/crc-t10dif.h @@ -3,6 +3,10 @@ #include <linux/types.h> +#define CRC_T10DIF_DIGEST_SIZE 2 +#define CRC_T10DIF_BLOCK_SIZE 1 + +__u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer, size_t len); __u16 crc_t10dif(unsigned char const *, size_t); #endif diff --git a/lib/Kconfig b/lib/Kconfig index 5a5203ded0d..f1ed53c3aa4 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -66,6 +66,8 @@ config CRC16 config CRC_T10DIF tristate "CRC calculation for the T10 Data Integrity Field" + select CRYPTO + select CRYPTO_CRCT10DIF help This option is only needed if a module that's not in the kernel tree needs to calculate CRC checks for use with the diff --git a/lib/crc-t10dif.c b/lib/crc-t10dif.c index fbbd66ed86c..fe3428c07b4 100644 --- a/lib/crc-t10dif.c +++ b/lib/crc-t10dif.c @@ -11,57 +11,44 @@ #include <linux/types.h> #include <linux/module.h> #include <linux/crc-t10dif.h> +#include <linux/err.h> +#include <linux/init.h> +#include <crypto/hash.h> -/* Table generated using the following polynomium: - * x^16 + x^15 + x^11 + x^9 + x^8 + x^7 + x^5 + x^4 + x^2 + x + 1 - * gt: 0x8bb7 - */ -static const __u16 t10_dif_crc_table[256] = { - 0x0000, 0x8BB7, 0x9CD9, 0x176E, 0xB205, 0x39B2, 0x2EDC, 0xA56B, - 0xEFBD, 0x640A, 0x7364, 0xF8D3, 0x5DB8, 0xD60F, 0xC161, 0x4AD6, - 0x54CD, 0xDF7A, 0xC814, 0x43A3, 0xE6C8, 0x6D7F, 0x7A11, 0xF1A6, - 0xBB70, 0x30C7, 0x27A9, 0xAC1E, 0x0975, 0x82C2, 0x95AC, 0x1E1B, - 0xA99A, 0x222D, 0x3543, 0xBEF4, 0x1B9F, 0x9028, 0x8746, 0x0CF1, - 0x4627, 0xCD90, 0xDAFE, 0x5149, 0xF422, 0x7F95, 0x68FB, 0xE34C, - 0xFD57, 0x76E0, 0x618E, 0xEA39, 0x4F52, 0xC4E5, 0xD38B, 0x583C, - 0x12EA, 0x995D, 0x8E33, 0x0584, 0xA0EF, 0x2B58, 0x3C36, 0xB781, - 0xD883, 0x5334, 0x445A, 0xCFED, 0x6A86, 0xE131, 0xF65F, 0x7DE8, - 0x373E, 0xBC89, 0xABE7, 0x2050, 0x853B, 0x0E8C, 0x19E2, 0x9255, - 0x8C4E, 0x07F9, 0x1097, 0x9B20, 0x3E4B, 0xB5FC, 0xA292, 0x2925, - 0x63F3, 0xE844, 0xFF2A, 0x749D, 0xD1F6, 0x5A41, 0x4D2F, 0xC698, - 0x7119, 0xFAAE, 0xEDC0, 0x6677, 0xC31C, 0x48AB, 0x5FC5, 0xD472, - 0x9EA4, 0x1513, 0x027D, 0x89CA, 0x2CA1, 0xA716, 0xB078, 0x3BCF, - 0x25D4, 0xAE63, 0xB90D, 0x32BA, 0x97D1, 0x1C66, 0x0B08, 0x80BF, - 0xCA69, 0x41DE, 0x56B0, 0xDD07, 0x786C, 0xF3DB, 0xE4B5, 0x6F02, - 0x3AB1, 0xB106, 0xA668, 0x2DDF, 0x88B4, 0x0303, 0x146D, 0x9FDA, - 0xD50C, 0x5EBB, 0x49D5, 0xC262, 0x6709, 0xECBE, 0xFBD0, 0x7067, - 0x6E7C, 0xE5CB, 0xF2A5, 0x7912, 0xDC79, 0x57CE, 0x40A0, 0xCB17, - 0x81C1, 0x0A76, 0x1D18, 0x96AF, 0x33C4, 0xB873, 0xAF1D, 0x24AA, - 0x932B, 0x189C, 0x0FF2, 0x8445, 0x212E, 0xAA99, 0xBDF7, 0x3640, - 0x7C96, 0xF721, 0xE04F, 0x6BF8, 0xCE93, 0x4524, 0x524A, 0xD9FD, - 0xC7E6, 0x4C51, 0x5B3F, 0xD088, 0x75E3, 0xFE54, 0xE93A, 0x628D, - 0x285B, 0xA3EC, 0xB482, 0x3F35, 0x9A5E, 0x11E9, 0x0687, 0x8D30, - 0xE232, 0x6985, 0x7EEB, 0xF55C, 0x5037, 0xDB80, 0xCCEE, 0x4759, - 0x0D8F, 0x8638, 0x9156, 0x1AE1, 0xBF8A, 0x343D, 0x2353, 0xA8E4, - 0xB6FF, 0x3D48, 0x2A26, 0xA191, 0x04FA, 0x8F4D, 0x9823, 0x1394, - 0x5942, 0xD2F5, 0xC59B, 0x4E2C, 0xEB47, 0x60F0, 0x779E, 0xFC29, - 0x4BA8, 0xC01F, 0xD771, 0x5CC6, 0xF9AD, 0x721A, 0x6574, 0xEEC3, - 0xA415, 0x2FA2, 0x38CC, 0xB37B, 0x1610, 0x9DA7, 0x8AC9, 0x017E, - 0x1F65, 0x94D2, 0x83BC, 0x080B, 0xAD60, 0x26D7, 0x31B9, 0xBA0E, - 0xF0D8, 0x7B6F, 0x6C01, 0xE7B6, 0x42DD, 0xC96A, 0xDE04, 0x55B3 -}; +static struct crypto_shash *crct10dif_tfm; __u16 crc_t10dif(const unsigned char *buffer, size_t len) { - __u16 crc = 0; - unsigned int i; + struct { + struct shash_desc shash; + char ctx[2]; + } desc; + int err; + + desc.shash.tfm = crct10dif_tfm; + desc.shash.flags = 0; + *(__u16 *)desc.ctx = 0; - for (i = 0 ; i < len ; i++) - crc = (crc << 8) ^ t10_dif_crc_table[((crc >> 8) ^ buffer[i]) & 0xff]; + err = crypto_shash_update(&desc.shash, buffer, len); + BUG_ON(err); - return crc; + return *(__u16 *)desc.ctx; } EXPORT_SYMBOL(crc_t10dif); +static int __init crc_t10dif_mod_init(void) +{ + crct10dif_tfm = crypto_alloc_shash("crct10dif", 0, 0); + return PTR_RET(crct10dif_tfm); +} + +static void __exit crc_t10dif_mod_fini(void) +{ + crypto_free_shash(crct10dif_tfm); +} + +module_init(crc_t10dif_mod_init); +module_exit(crc_t10dif_mod_fini); + MODULE_DESCRIPTION("T10 DIF CRC calculation"); MODULE_LICENSE("GPL"); |