Commit Graph

152 Commits

Author SHA1 Message Date
Al Viro
f21a7c195c um: several x86 hw-dependent crypto modules won't build on uml
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-09 14:02:13 -04:00
Darrick J. Wong
6a0962b22e crypto: crc32c should use library implementation
Since lib/crc32.c now provides crc32c, remove the software implementation
here and call the library function instead.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Bob Pearson <rpearson@systemfabricworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23 16:58:38 -07:00
Jussi Kivilinna
0b95ec56ae crypto: camellia - add assembler implementation for x86_64
Patch adds x86_64 assembler implementation of Camellia block cipher. Two set of
functions are provided. First set is regular 'one-block at time' encrypt/decrypt
functions. Second is 'two-block at time' functions that gain performance increase
on out-of-order CPUs. Performance of 2-way functions should be equal to 1-way
functions with in-order CPUs.

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmark results:

AMD Phenom II 1055T (fam:16, model:10):

camellia-asm vs camellia_generic:
128bit key:                                             (lrw:256bit)    (xts:256bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.27x   1.22x   1.30x   1.42x   1.30x   1.34x   1.19x   1.05x   1.23x   1.24x
64B     1.74x   1.79x   1.43x   1.87x   1.81x   1.87x   1.48x   1.38x   1.55x   1.62x
256B    1.90x   1.87x   1.43x   1.94x   1.94x   1.95x   1.63x   1.62x   1.67x   1.70x
1024B   1.96x   1.93x   1.43x   1.95x   1.98x   2.01x   1.67x   1.69x   1.74x   1.80x
8192B   1.96x   1.96x   1.39x   1.93x   2.01x   2.03x   1.72x   1.64x   1.71x   1.76x

256bit key:                                             (lrw:384bit)    (xts:512bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.23x   1.23x   1.33x   1.39x   1.34x   1.38x   1.04x   1.18x   1.21x   1.29x
64B     1.72x   1.69x   1.42x   1.78x   1.81x   1.89x   1.57x   1.52x   1.56x   1.65x
256B    1.85x   1.88x   1.42x   1.86x   1.93x   1.96x   1.69x   1.65x   1.70x   1.75x
1024B   1.88x   1.86x   1.45x   1.95x   1.96x   1.95x   1.77x   1.71x   1.77x   1.78x
8192B   1.91x   1.86x   1.42x   1.91x   2.03x   1.98x   1.73x   1.71x   1.78x   1.76x

camellia-asm vs aes-asm (8kB block):
         128bit  256bit
ecb-enc  1.15x   1.22x
ecb-dec  1.16x   1.16x
cbc-enc  0.85x   0.90x
cbc-dec  1.20x   1.23x
ctr-enc  1.28x   1.30x
ctr-dec  1.27x   1.28x
lrw-enc  1.12x   1.16x
lrw-dec  1.08x   1.10x
xts-enc  1.11x   1.15x
xts-dec  1.14x   1.15x

Intel Core2 T8100 (fam:6, model:23, step:6):

camellia-asm vs camellia_generic:
128bit key:                                             (lrw:256bit)    (xts:256bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.10x   1.12x   1.14x   1.16x   1.16x   1.15x   1.02x   1.02x   1.08x   1.08x
64B     1.61x   1.60x   1.17x   1.68x   1.67x   1.66x   1.43x   1.42x   1.44x   1.42x
256B    1.65x   1.73x   1.17x   1.77x   1.81x   1.80x   1.54x   1.53x   1.58x   1.54x
1024B   1.76x   1.74x   1.18x   1.80x   1.85x   1.85x   1.60x   1.59x   1.65x   1.60x
8192B   1.77x   1.75x   1.19x   1.81x   1.85x   1.86x   1.63x   1.61x   1.66x   1.62x

256bit key:                                             (lrw:384bit)    (xts:512bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.10x   1.07x   1.13x   1.16x   1.11x   1.16x   1.03x   1.02x   1.08x   1.07x
64B     1.61x   1.62x   1.15x   1.66x   1.63x   1.68x   1.47x   1.46x   1.47x   1.44x
256B    1.71x   1.70x   1.16x   1.75x   1.69x   1.79x   1.58x   1.57x   1.59x   1.55x
1024B   1.78x   1.72x   1.17x   1.75x   1.80x   1.80x   1.63x   1.62x   1.65x   1.62x
8192B   1.76x   1.73x   1.17x   1.78x   1.80x   1.81x   1.64x   1.62x   1.68x   1.64x

camellia-asm vs aes-asm (8kB block):
         128bit  256bit
ecb-enc  1.17x   1.21x
ecb-dec  1.17x   1.20x
cbc-enc  0.80x   0.82x
cbc-dec  1.22x   1.24x
ctr-enc  1.25x   1.26x
ctr-dec  1.25x   1.26x
lrw-enc  1.14x   1.18x
lrw-dec  1.13x   1.17x
xts-enc  1.14x   1.18x
xts-dec  1.14x   1.17x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:56 +08:00
Linus Torvalds
4f58cb90bc Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (54 commits)
  crypto: gf128mul - remove leftover "(EXPERIMENTAL)" in Kconfig
  crypto: serpent-sse2 - remove unneeded LRW/XTS #ifdefs
  crypto: serpent-sse2 - select LRW and XTS
  crypto: twofish-x86_64-3way - remove unneeded LRW/XTS #ifdefs
  crypto: twofish-x86_64-3way - select LRW and XTS
  crypto: xts - remove dependency on EXPERIMENTAL
  crypto: lrw - remove dependency on EXPERIMENTAL
  crypto: picoxcell - fix boolean and / or confusion
  crypto: caam - remove DECO access initialization code
  crypto: caam - fix polarity of "propagate error" logic
  crypto: caam - more desc.h cleanups
  crypto: caam - desc.h - convert spaces to tabs
  crypto: talitos - convert talitos_error to struct device
  crypto: talitos - remove NO_IRQ references
  crypto: talitos - fix bad kfree
  crypto: convert drivers/crypto/* to use module_platform_driver()
  char: hw_random: convert drivers/char/hw_random/* to use module_platform_driver()
  crypto: serpent-sse2 - should select CRYPTO_CRYPTD
  crypto: serpent - rename serpent.c to serpent_generic.c
  crypto: serpent - cleanup checkpatch errors and warnings
  ...
2012-01-10 22:01:27 -08:00
Jussi Kivilinna
08c70fc3a2 crypto: gf128mul - remove leftover "(EXPERIMENTAL)" in Kconfig
CRYPTO_GF128MUL does not select EXPERIMENTAL anymore so remove the
"(EXPERIMENTAL)" from its name.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:08 +08:00
Jussi Kivilinna
feaf0cfc26 crypto: serpent-sse2 - select LRW and XTS
serpent-sse2 uses functions from LRW and XTS modules, so selecting would appear
to be better option than using #ifdefs in serpent_sse2_glue.c to enable/disable
LRW and XTS features.

This also fixes build problem when serpent-sse2 would be build into kernel but
XTS/LRW are build as modules.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:07 +08:00
Jussi Kivilinna
e7cda5d27e crypto: twofish-x86_64-3way - select LRW and XTS
twofish-x86_64-3way uses functions from LRW and XTS modules, so selecting would
appear to be better option than using #ifdefs in twofish_glue_3way.c to
enable/disable LRW and XTS features.

This also fixes build problem when twofish-x86_64-3way would be build into
kernel but XTS/LRW are build as modules.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:06 +08:00
Jussi Kivilinna
5bcf8e6dd4 crypto: xts - remove dependency on EXPERIMENTAL
XTS has been EXPERIMENTAL since it was introduced in 2007. I'd say by now
it has seen enough testing to justify removal of EXPERIMENTAL tag.

CC: Rik Snel <rsnel@cube.dyndns.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:06 +08:00
Jussi Kivilinna
2470a2b2c3 crypto: lrw - remove dependency on EXPERIMENTAL
LRW has been EXPERIMENTAL since it was introduced in 2006. I'd say by now
it has seen enough testing to justify removal of EXPERIMENTAL tag.

CC: Rik Snel <rsnel@cube.dyndns.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-12-20 15:20:05 +08:00
Jussi Kivilinna
341975bf3a crypto: serpent-sse2 - should select CRYPTO_CRYPTD
Since serpent_sse2_glue.c uses cryptd, CRYPTO_SERPENT_SSE2_X86_64 and
CRYPTO_SERPENT_SSE2_586 should be selecting CRYPTO_CRYPTD.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-30 16:12:44 +08:00
Jussi Kivilinna
251496dbfc crypto: serpent - add 4-way parallel i586/SSE2 assembler implementation
Patch adds i586/SSE2 assembler implementation of serpent cipher. Assembler
functions crypt data in four block chunks.

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmarks results (serpent-sse2/serpent_generic speed ratios):

Intel Atom N270:

size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec
16      0.95x   1.12x   1.02x   1.07x   0.97x   0.98x
64      1.73x   1.82x   1.08x   1.82x   1.72x   1.73x
256     2.08x   2.00x   1.04x   2.07x   1.99x   2.01x
1024    2.28x   2.18x   1.05x   2.23x   2.17x   2.20x
8192    2.28x   2.13x   1.05x   2.23x   2.18x   2.20x

Full output:
 http://koti.mbnet.fi/axh/kernel/crypto/atom-n270/serpent-generic.txt
 http://koti.mbnet.fi/axh/kernel/crypto/atom-n270/serpent-sse2.txt

Userspace test results:

Encryption/decryption of sse2-i586 vs generic on Intel Atom N270:
 encrypt: 2.35x
 decrypt: 2.54x

Encryption/decryption of sse2-i586 vs generic on AMD Phenom II:
 encrypt: 1.82x
 decrypt: 2.51x

Encryption/decryption of sse2-i586 vs generic on Intel Xeon E7330:
 encrypt: 2.99x
 decrypt: 3.48x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:13:23 +08:00
Jussi Kivilinna
937c30d7f5 crypto: serpent - add 8-way parallel x86_64/SSE2 assembler implementation
Patch adds x86_64/SSE2 assembler implementation of serpent cipher. Assembler
functions crypt data in eigth block chunks (two 4 block chunk SSE2 operations
in parallel to improve performance on out-of-order CPUs). Glue code is based
on one from AES-NI implementation, so requests from irq context are redirected
to cryptd.

v2:
 - add missing include of linux/module.h
   (appearently crypto.h used to include module.h, which changed for 3.2 by
    commit 7c926402a7)

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmarks results (serpent-sse2/serpent_generic speed ratios):

AMD Phenom II 1055T (fam:16, model:10):

size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec
16B     1.03x   1.01x   1.03x   1.05x   1.00x   0.99x
64B     1.00x   1.01x   1.02x   1.04x   1.02x   1.01x
256B    2.34x   2.41x   0.99x   2.43x   2.39x   2.40x
1024B   2.51x   2.57x   1.00x   2.59x   2.56x   2.56x
8192B   2.50x   2.54x   1.00x   2.55x   2.57x   2.57x

Intel Celeron T1600 (fam:6, model:15, step:13):

size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec
16B     0.97x   0.97x   1.01x   1.01x   1.01x   1.02x
64B     1.00x   1.00x   1.00x   1.02x   1.01x   1.01x
256B    3.41x   3.35x   1.00x   3.39x   3.42x   3.44x
1024B   3.75x   3.72x   0.99x   3.74x   3.75x   3.75x
8192B   3.70x   3.68x   0.99x   3.68x   3.69x   3.69x

Full output:
 http://koti.mbnet.fi/axh/kernel/crypto/phenom-ii-1055t/serpent-generic.txt
 http://koti.mbnet.fi/axh/kernel/crypto/phenom-ii-1055t/serpent-sse2.txt
 http://koti.mbnet.fi/axh/kernel/crypto/celeron-t1600/serpent-generic.txt
 http://koti.mbnet.fi/axh/kernel/crypto/celeron-t1600/serpent-sse2.txt

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-21 16:13:23 +08:00
Jiri Kosina
2290c0d06d Merge branch 'master' into for-next
Sync with Linus tree to have 157550ff ("mtd: add GPMI-NAND driver
in the config and Makefile") as I have patch depending on that one.
2011-11-13 20:55:53 +01:00
Paul Bolle
4da669a2e3 crypto: drop selects of bogus Kconfig symbol
Commits 2cdc6899a8 ("crypto: ghash - Add GHASH digest algorithm for
GCM") and 0e1227d356 ("crypto: ghash - Add PCLMULQDQ accelerated
implementation") added "select CRYPTO_SHASH" to two entries. That
Kconfig symbol doesn't exist. These two selects are nops. Drop them.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-11-13 20:49:02 +01:00
Valdis.Kletnieks@vt.edu
d19978f587 crypto: fix typo in crypto/Kconfig
Fix a typo in the Kconfig file help text.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-09 20:03:51 +08:00
Herbert Xu
5db017aa28 crypto: user - Depend on NET instead of selecting it
Selecting NET causes all sorts of issues, including a dependency
loop involving bluetooth.  This patch makes it a dependency instead.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-01 12:12:43 +11:00
Herbert Xu
ea8bdfcff1 crypto: user - Add dependency on NET
Since the configuration interface relies on netlink we need to
select NET.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-26 17:15:10 +02:00
Steffen Klassert
a38f7907b9 crypto: Add userspace configuration API
This patch adds a basic userspace configuration API for the crypto layer.
With this it is possible to instantiate, remove and to show crypto
algorithms from userspace.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:24:03 +02:00
Jussi Kivilinna
8280daad43 crypto: twofish - add 3-way parallel x86_64 assembler implemention
Patch adds 3-way parallel x86_64 assembly implementation of twofish as new
module. New assembler functions crypt data in three blocks chunks, improving
cipher performance on out-of-order CPUs.

Patch has been tested with tcrypt and automated filesystem tests.

Summary of the tcrypt benchmarks:

Twofish 3-way-asm vs twofish asm (128bit 8kb block ECB)
 encrypt: 1.3x speed
 decrypt: 1.3x speed

Twofish 3-way-asm vs twofish asm (128bit 8kb block CBC)
 encrypt: 1.07x speed
 decrypt: 1.4x speed

Twofish 3-way-asm vs twofish asm (128bit 8kb block CTR)
 encrypt: 1.4x speed

Twofish 3-way-asm vs AES asm (128bit 8kb block ECB)
 encrypt: 1.0x speed
 decrypt: 1.0x speed

Twofish 3-way-asm vs AES asm (128bit 8kb block CBC)
 encrypt: 0.84x speed
 decrypt: 1.09x speed

Twofish 3-way-asm vs AES asm (128bit 8kb block CTR)
 encrypt: 1.15x speed

Full output:
 http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-twofish-3way-asm-x86_64.txt
 http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-twofish-asm-x86_64.txt
 http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-aes-asm-x86_64.txt

Tests were run on:
 vendor_id  : AuthenticAMD
 cpu family : 16
 model      : 10
 model name : AMD Phenom(tm) II X6 1055T Processor

Also userspace test were run on:
 vendor_id  : GenuineIntel
 cpu family : 6
 model      : 15
 model name : Intel(R) Xeon(R) CPU           E7330  @ 2.40GHz
 stepping   : 11

Userspace test results:

Encryption/decryption of twofish 3-way vs x86_64-asm on AMD Phenom II:
 encrypt: 1.27x
 decrypt: 1.25x

Encryption/decryption of twofish 3-way vs x86_64-asm on Intel Xeon E7330:
 encrypt: 1.36x
 decrypt: 1.36x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-10-21 14:23:08 +02:00
Jussi Kivilinna
64b94ceae8 crypto: blowfish - add x86_64 assembly implementation
Patch adds x86_64 assembly implementation of blowfish. Two set of assembler
functions are provided. First set is regular 'one-block at time'
encrypt/decrypt functions. Second is 'four-block at time' functions that
gain performance increase on out-of-order CPUs. Performance of 4-way
functions should be equal to 1-way functions with in-order CPUs.

Summary of the tcrypt benchmarks:

Blowfish assembler vs blowfish C (256bit 8kb block ECB)
encrypt: 2.2x speed
decrypt: 2.3x speed

Blowfish assembler vs blowfish C (256bit 8kb block CBC)
encrypt: 1.12x speed
decrypt: 2.5x speed

Blowfish assembler vs blowfish C (256bit 8kb block CTR)
encrypt: 2.5x speed

Full output:
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-blowfish-asm-x86_64.txt
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-blowfish-c-x86_64.txt

Tests were run on:
 vendor_id	: AuthenticAMD
 cpu family	: 16
 model		: 10
 model name	: AMD Phenom(tm) II X6 1055T Processor
 stepping	: 0

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-09-22 21:25:26 +10:00
Jussi Kivilinna
52ba867c8c crypto: blowfish - split generic and common c code
Patch splits up the blowfish crypto routine into a common part (key setup)
which will be used by blowfish crypto modules (x86_64 assembly and generic-c).

Also fixes errors/warnings reported by checkpatch.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-09-22 21:25:25 +10:00
Mathias Krause
66be895158 crypto: sha1 - SSSE3 based SHA1 implementation for x86-64
This is an assembler implementation of the SHA1 algorithm using the
Supplemental SSE3 (SSSE3) instructions or, when available, the
Advanced Vector Extensions (AVX).

Testing with the tcrypt module shows the raw hash performance is up to
2.3 times faster than the C implementation, using 8k data blocks on a
Core 2 Duo T5500. For the smalest data set (16 byte) it is still 25%
faster.

Since this implementation uses SSE/YMM registers it cannot safely be
used in every situation, e.g. while an IRQ interrupts a kernel thread.
The implementation falls back to the generic SHA1 variant, if using
the SSE/YMM registers is not possible.

With this algorithm I was able to increase the throughput of a single
IPsec link from 344 Mbit/s to 464 Mbit/s on a Core 2 Quad CPU using
the SSSE3 variant -- a speedup of +34.8%.

Saving and restoring SSE/YMM state might make the actual throughput
fluctuate when there are FPU intensive userland applications running.
For example, meassuring the performance using iperf2 directly on the
machine under test gives wobbling numbers because iperf2 uses the FPU
for each packet to check if the reporting interval has expired (in the
above test I got min/max/avg: 402/484/464 MBit/s).

Using this algorithm on a IPsec gateway gives much more reasonable and
stable numbers, albeit not as high as in the directly connected case.
Here is the result from an RFC 2544 test run with a EXFO Packet Blazer
FTB-8510:

 frame size    sha1-generic     sha1-ssse3    delta
    64 byte     37.5 MBit/s    37.5 MBit/s     0.0%
   128 byte     56.3 MBit/s    62.5 MBit/s   +11.0%
   256 byte     87.5 MBit/s   100.0 MBit/s   +14.3%
   512 byte    131.3 MBit/s   150.0 MBit/s   +14.2%
  1024 byte    162.5 MBit/s   193.8 MBit/s   +19.3%
  1280 byte    175.0 MBit/s   212.5 MBit/s   +21.4%
  1420 byte    175.0 MBit/s   218.7 MBit/s   +25.0%
  1518 byte    150.0 MBit/s   181.2 MBit/s   +20.8%

The throughput for the largest frame size is lower than for the
previous size because the IP packets need to be fragmented in this
case to make there way through the IPsec tunnel.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Maxim Locktyukhin <maxim.locktyukhin@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-08-10 19:00:29 +08:00
Linus Torvalds
d3ec4844d4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
  fs: Merge split strings
  treewide: fix potentially dangerous trailing ';' in #defined values/expressions
  uwb: Fix misspelling of neighbourhood in comment
  net, netfilter: Remove redundant goto in ebt_ulog_packet
  trivial: don't touch files that are removed in the staging tree
  lib/vsprintf: replace link to Draft by final RFC number
  doc: Kconfig: `to be' -> `be'
  doc: Kconfig: Typo: square -> squared
  doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
  drivers/net: static should be at beginning of declaration
  drivers/media: static should be at beginning of declaration
  drivers/i2c: static should be at beginning of declaration
  XTENSA: static should be at beginning of declaration
  SH: static should be at beginning of declaration
  MIPS: static should be at beginning of declaration
  ARM: static should be at beginning of declaration
  rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
  Update my e-mail address
  PCIe ASPM: forcedly -> forcibly
  gma500: push through device driver tree
  ...

Fix up trivial conflicts:
 - arch/arm/mach-ep93xx/dma-m2p.c (deleted)
 - drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
 - drivers/net/r8169.c (just context changes)
2011-07-25 13:56:39 -07:00
Michael Witten
35ed4b35be doc: Kconfig: to be' -> be'
Also, a comma was inserted to offset a modifier.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-11 14:23:35 +02:00
Richard Weinberger
8af00860c9 crypto: UML build fixes
CRYPTO_GHASH_CLMUL_NI_INTEL and CRYPTO_AES_NI_INTEL cannot be used
on UML.
Commit 3e02e5cb and 54b6a1b enabled them by accident.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-06-30 07:44:01 +08:00
Andy Lutomirski
b23b645165 crypto: aesni-intel - Merge with fpu.ko
Loading fpu without aesni-intel does nothing.  Loading aesni-intel
without fpu causes modes like xts to fail.  (Unloading
aesni-intel will restore those modes.)

One solution would be to make aesni-intel depend on fpu, but it
seems cleaner to just combine the modules.

This is probably responsible for bugs like:
https://bugzilla.redhat.com/show_bug.cgi?id=589390

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-05-16 15:12:47 +10:00
Herbert Xu
8ad225e8e4 crypto: gf128mul - Remove experimental tag
This feature no longer needs the experimental tag.

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-28 22:56:26 +11:00
Herbert Xu
7451708f39 crypto: af_alg - Add dependency on NET
Add missing dependency on NET since we require sockets for our
interface.

Should really be a select but kconfig doesn't like that:

net/Kconfig:6:error: found recursive dependency: NET -> NETWORK_FILESYSTEMS -> AFS_FS -> AF_RXRPC -> CRYPTO -> CRYPTO_USER_API_HASH -> CRYPTO_USER_API -> NET

Reported-by: Zimny Lech <napohybelskurwysynom2010@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-29 22:56:03 +08:00
Mathias Krause
0d258efb6a crypto: aesni-intel - Ported implementation to x86-32
The AES-NI instructions are also available in legacy mode so the 32-bit
architecture may profit from those, too.

To illustrate the performance gain here's a short summary of a dm-crypt
speed test on a Core i7 M620 running at 2.67GHz comparing both assembler
implementations:

x86:                   i568       aes-ni    delta
ECB, 256 bit:     93.8 MB/s   123.3 MB/s   +31.4%
CBC, 256 bit:     84.8 MB/s   262.3 MB/s  +209.3%
LRW, 256 bit:    108.6 MB/s   222.1 MB/s  +104.5%
XTS, 256 bit:    105.0 MB/s   205.5 MB/s   +95.7%

Additionally, due to some minor optimizations, the 64-bit version also
got a minor performance gain as seen below:

x86-64:           old impl.    new impl.    delta
ECB, 256 bit:    121.1 MB/s   123.0 MB/s    +1.5%
CBC, 256 bit:    285.3 MB/s   290.8 MB/s    +1.9%
LRW, 256 bit:    263.7 MB/s   265.3 MB/s    +0.6%
XTS, 256 bit:    251.1 MB/s   255.3 MB/s    +1.7%

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-27 16:34:46 +08:00
Herbert Xu
8ff590903d crypto: algif_skcipher - User-space interface for skcipher operations
This patch adds the af_alg plugin for symmetric key ciphers,
corresponding to the ablkcipher kernel operation type.

Keys can optionally be set through the setsockopt interface.

Once a sendmsg call occurs without MSG_MORE no further writes
may be made to the socket until all previous data has been read.

IVs and and whether encryption/decryption is performed can be
set through the setsockopt interface or as a control message
to sendmsg.

The interface is completely synchronous, all operations are
carried out in recvmsg(2) and will complete prior to the system
call returning.

The splice(2) interface support reading the user-space data directly
without copying (except that the Crypto API itself may copy the data
if alignment is off).

The recvmsg(2) interface supports directly writing to user-space
without additional copying, i.e., the kernel crypto interface will
receive the user-space address as its output SG list.

Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
2010-11-26 20:53:59 +08:00
Herbert Xu
fe869cdb89 crypto: algif_hash - User-space interface for hash operations
This patch adds the af_alg plugin for hash, corresponding to
the ahash kernel operation type.

Keys can optionally be set through the setsockopt interface.

Each sendmsg call will finalise the hash unless sent with a MSG_MORE
flag.

Partial hash states can be cloned using accept(2).

The interface is completely synchronous, all operations will
complete prior to the system call returning.

Both sendmsg(2) and splice(2) support reading the user-space
data directly without copying (except that the Crypto API itself
may copy the data if alignment is off).

For now only the splice(2) interface supports performing digest
instead of init/update/final.  In future the sendmsg(2) interface
will also be modified to use digest/finup where possible so that
hardware that cannot return a partial hash state can still benefit
from this interface.

Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Martin Willi <martin@strongswan.org>
2010-11-19 17:47:58 +08:00
Herbert Xu
03c8efc1ff crypto: af_alg - User-space interface for Crypto API
This patch creates the backbone of the user-space interface for
the Crypto API, through a new socket family AF_ALG.

Each session corresponds to one or more connections obtained from
that socket.  The number depends on the number of inputs/outputs
of that particular type of operation.  For most types there will
be a s ingle connection/file descriptor that is used for both input
and output.  AEAD is one of the few that require two inputs.

Each algorithm type will provide its own implementation that plugs
into af_alg.  They're keyed using a string such as "skcipher" or
"hash".

IOW this patch only contains the boring bits that is required
to hold everything together.

Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Martin Willi <martin@strongswan.org>
2010-11-19 17:47:57 +08:00
Justin P. Mattock
6d8de74c5c crypto: Kconfig - update broken web addresses
Below is a patch to update the broken web addresses, in crypto/*
that I could locate. Some are just simple typos that needed to be
fixed, and some had a change in location altogether..
let me know if any of them need to be changed and such. 

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-09-12 10:42:47 +08:00
Chuck Ebbert
e84c5480b7 crypto: fips - FIPS requires algorithm self-tests
Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-09-03 19:17:49 +08:00
Herbert Xu
00ca28a507 crypto: testmgr - Default to no tests
On Thu, Aug 05, 2010 at 07:01:21PM -0700, Linus Torvalds wrote:
> On Thu, Aug 5, 2010 at 6:40 PM, Herbert Xu <herbert@gondor.hengli.com.au> wrote:
> >
> > -config CRYPTO_MANAGER_TESTS
> > -       bool "Run algolithms' self-tests"
> > -       default y
> > -       depends on CRYPTO_MANAGER2
> > +config CRYPTO_MANAGER_DISABLE_TESTS
> > +       bool "Disable run-time self tests"
> > +       depends on CRYPTO_MANAGER2 && EMBEDDED
>
> Why do you still want to force-enable those tests? I was going to
> complain about the "default y" anyway, now I'm _really_ complaining,
> because you've now made it impossible to disable those tests. Why?

As requested, this patch sets the default to y and removes the
EMBEDDED dependency.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-08-06 10:34:00 +08:00
Herbert Xu
326a6346ff crypto: testmgr - Fix test disabling option
This patch fixes a serious bug in the test disabling patch where
it can cause an spurious load of the cryptomgr module even when
it's compiled in.

It also negates the test disabling option so that its absence
causes tests to be enabled.

The Kconfig option is also now behind EMBEDDED.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-08-06 09:40:28 +08:00
Alexander Shishkin
0b767f9616 crypto: testmgr - add an option to disable cryptoalgos' self-tests
By default, CONFIG_CRYPTO_MANAGER_TESTS will be enabled and thus
self-tests will still run, but it is now possible to disable them
to gain some time during bootup.

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-06-03 20:53:43 +10:00
Herbert Xu
bc94e59662 crypto: pcomp - Fix illegal Kconfig configuration
The PCOMP Kconfig entry current allows the following combination
which is illegal:

ZLIB=y
PCOMP=y
ALGAPI=m
ALGAPI2=y
MANAGER=m
MANAGER2=m

This patch fixes this by adding PCOMP2 so that PCOMP can select
ALGAPI to propagate the setting to MANAGER2.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-06-03 20:33:06 +10:00
Gilles Espinasse
f77f13e22d Fix comment and Kconfig typos for 'require' and 'fragment'
Signed-off-by: Gilles Espinasse <g.esp@free.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-03-29 15:41:47 +02:00
Jiri Kosina
318ae2edc3 Merge branch 'for-next' into for-linus
Conflicts:
	Documentation/filesystems/proc.txt
	arch/arm/mach-u300/include/mach/debug-macro.S
	drivers/net/qlge/qlge_ethtool.c
	drivers/net/qlge/qlge_main.c
	drivers/net/typhoon.c
2010-03-08 16:55:37 +01:00
Jiri Kosina
7dd607e82d crypto: fix typo in Kconfig help text
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-05 12:22:41 +01:00
Steffen Klassert
5068c7a883 crypto: pcrypt - Add pcrypt crypto parallelization wrapper
This patch adds a parallel crypto template that takes a crypto
algorithm and converts it to process the crypto transforms in
parallel. For the moment only aead algorithms are supported.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-01-07 15:57:19 +11:00
Huang Ying
3e02e5cb47 crypto: ghash-intel - Fix building failure on x86_32
CLMUL-NI accelerated GHASH should be turned off on non-x86_64 machine.

Reported-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-10-27 19:07:24 +08:00
Huang Ying
0e1227d356 crypto: ghash - Add PCLMULQDQ accelerated implementation
PCLMULQDQ is used to accelerate the most time-consuming part of GHASH,
carry-less multiplication. More information about PCLMULQDQ can be
found at:

http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/

Because PCLMULQDQ changes XMM state, its usage must be enclosed with
kernel_fpu_begin/end, which can be used only in process context, the
acceleration is implemented as crypto_ahash. That is, request in soft
IRQ context will be defered to the cryptd kernel thread.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-10-19 11:53:06 +09:00
Shane Wang
f1939f7c56 crypto: vmac - New hash algorithm for intel_txt support
This patch adds VMAC (a fast MAC) support into crypto framework.

Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-09-02 20:05:22 +10:00
Neil Horman
4e4ed83be6 crypto: fips - Depend on ansi_cprng
What about something like this?  It defaults the CPRNG to m and makes FIPS
dependent on the CPRNG.  That way you get a module build by default, but you can
change it to y manually during config and still satisfy the dependency, and if
you select N it disables FIPS as well.  I rather like that better than making
FIPS a tristate.  I just tested it out here and it seems to work well.  Let me
know what you think

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-20 17:54:16 +10:00
Herbert Xu
73fec12094 Revert crypto: fips - Select CPRNG
This reverts commit 215ccd6f55.

It causes CPRNG and everything selected by it to be built-in
whenever FIPS is enabled.  The problem is that it is selecting
a tristate from a bool, which is usually not what is intended.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-13 22:41:25 +10:00
Huang Ying
9382d97af5 crypto: gcm - Use GHASH digest algorithm
Remove the dedicated GHASH implementation in GCM, and uses the GHASH
digest algorithm instead. This will make GCM uses hardware accelerated
GHASH implementation automatically if available.

ahash instead of shash interface is used, because some hardware
accelerated GHASH implementation needs asynchronous interface.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-06 15:34:26 +10:00
Huang Ying
2cdc6899a8 crypto: ghash - Add GHASH digest algorithm for GCM
GHASH is implemented as a shash algorithm. The actual implementation
is copied from gcm.c. This makes it possible to add
architecture/hardware accelerated GHASH implementation.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-06 15:32:38 +10:00
Neil Horman
215ccd6f55 crypto: fips - Select CPRNG
The ANSI CPRNG has no dependence on FIPS support.  FIPS support however,
requires the use of the CPRNG.  Adjust that depedency relationship in Kconfig.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-21 21:38:03 +08:00