1. 27 Jun, 2012 32 commits
  2. 22 Jun, 2012 1 commit
    • Herbert Xu's avatar
      crypto: algapi - Move larval completion into algboss · 39871037
      Herbert Xu authored
      It has been observed that sometimes the crypto allocation code
      will get stuck for 60 seconds or multiples thereof.  This is
      usually caused by an algorithm failing to pass the self-test.
      
      If an algorithm fails to be constructed, we will immediately notify
      all larval waiters.  However, if it succeeds in construction, but
      then fails the self-test, we won't notify anyone at all.
      
      This patch fixes this by merging the notification in the case
      where the algorithm fails to be constructed with that of the
      the case where it pases the self-test.  This way regardless of
      what happens, we'll give the larval waiters an answer.
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      39871037
  3. 14 Jun, 2012 5 commits
  4. 12 Jun, 2012 2 commits
    • Johannes Goetzfried's avatar
      crypto: serpent - add x86_64/avx assembler implementation · 7efe4076
      Johannes Goetzfried authored
      This patch adds a x86_64/avx assembler implementation of the Serpent block
      cipher. The implementation is very similar to the sse2 implementation and
      processes eight blocks in parallel. Because of the new non-destructive three
      operand syntax all move-instructions can be removed and therefore a little
      performance increase is provided.
      
      Patch has been tested with tcrypt and automated filesystem tests.
      
      Tcrypt benchmark results:
      
      Intel Core i5-2500 CPU (fam:6, model:42, step:7)
      
      serpent-avx-x86_64 vs. serpent-sse2-x86_64
      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     1.03x   1.01x   1.01x   1.01x   1.00x   1.00x   1.00x   1.00x   1.00x   1.01x
      64B     1.00x   1.00x   1.00x   1.00x   1.00x   0.99x   1.00x   1.01x   1.00x   1.00x
      256B    1.05x   1.03x   1.00x   1.02x   1.05x   1.06x   1.05x   1.02x   1.05x   1.02x
      1024B   1.05x   1.02x   1.00x   1.02x   1.05x   1.06x   1.05x   1.03x   1.05x   1.02x
      8192B   1.05x   1.02x   1.00x   1.02x   1.06x   1.06x   1.04x   1.03x   1.04x   1.02x
      
      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     1.01x   1.00x   1.01x   1.01x   1.00x   1.00x   0.99x   1.03x   1.01x   1.01x
      64B     1.00x   1.00x   1.00x   1.00x   1.00x   1.00x   1.00x   1.01x   1.00x   1.02x
      256B    1.05x   1.02x   1.00x   1.02x   1.05x   1.02x   1.04x   1.05x   1.05x   1.02x
      1024B   1.06x   1.02x   1.00x   1.02x   1.07x   1.06x   1.05x   1.04x   1.05x   1.02x
      8192B   1.05x   1.02x   1.00x   1.02x   1.06x   1.06x   1.04x   1.05x   1.05x   1.02x
      
      serpent-avx-x86_64 vs aes-asm (8kB block):
               128bit  256bit
      ecb-enc  1.26x   1.73x
      ecb-dec  1.20x   1.64x
      cbc-enc  0.33x   0.45x
      cbc-dec  1.24x   1.67x
      ctr-enc  1.32x   1.76x
      ctr-dec  1.32x   1.76x
      lrw-enc  1.20x   1.60x
      lrw-dec  1.15x   1.54x
      xts-enc  1.22x   1.64x
      xts-dec  1.17x   1.57x
      Signed-off-by: default avatarJohannes Goetzfried <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      7efe4076
    • Johannes Goetzfried's avatar
      crypto: testmgr - expand twofish test vectors · 4da7de4d
      Johannes Goetzfried authored
      The AVX implementation of the twofish cipher processes 8 blocks parallel, so we
      need to make test vectors larger to check parallel code paths. Test vectors are
      also large enough to deal with 16 block parallel implementations which may occur
      in the future.
      Signed-off-by: default avatarJohannes Goetzfried <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
      Signed-off-by: default avatarJussi Kivilinna <jussi.kivilinna@mbnet.fi>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      4da7de4d