diff options
| author | Xavier Hernandez <xhernandez@datalab.es> | 2014-05-05 12:57:34 +0200 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2014-07-11 10:33:40 -0700 |
| commit | ad112305a1c7452b13c92238b40ded80361838f3 (patch) | |
| tree | 82dbf9aa0b77eb76d43c8b1ccb3ba58e61bc4e2a /xlators/cluster/ec/src/ec-gf.h | |
| parent | 6b4702897bd56e29db4db06f8cf896f89df1133c (diff) | |
cluster/ec: Added erasure code translator
Change-Id: I293917501d5c2ca4cdc6303df30cf0b568cea361
BUG: 1118629
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/7749
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/cluster/ec/src/ec-gf.h')
| -rw-r--r-- | xlators/cluster/ec/src/ec-gf.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/xlators/cluster/ec/src/ec-gf.h b/xlators/cluster/ec/src/ec-gf.h new file mode 100644 index 00000000000..664feb46ce5 --- /dev/null +++ b/xlators/cluster/ec/src/ec-gf.h @@ -0,0 +1,114 @@ +/* + Copyright (c) 2012 DataLab, s.l. <http://www.datalab.es> + + This file is part of the cluster/ec translator for GlusterFS. + + The cluster/ec translator for GlusterFS 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 3 of the License, or (at your option) any later version. + + The cluster/ec translator for GlusterFS 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. + + You should have received a copy of the GNU General Public License + along with the cluster/ec translator for GlusterFS. If not, see + <http://www.gnu.org/licenses/>. +*/ + +/* + * File automatically generated on Thu Jan 26 12:08:19 2012 + * + * DO NOT MODIFY + * + * Multiplications in a GF(2^8) with modulus 0x11D using XOR's + * + */ + +#ifndef __EC_GF_H__ +#define __EC_GF_H__ + +#define EC_GF_BITS 8 +#define EC_GF_MOD 0x11D + +#define ec_gf_load(addr) \ + do \ + { \ + __asm__ __volatile__ \ + ( \ + "\tmovdqa 0*16(%0), %%xmm0\n" \ + "\tmovdqa 1*16(%0), %%xmm1\n" \ + "\tmovdqa 2*16(%0), %%xmm2\n" \ + "\tmovdqa 3*16(%0), %%xmm3\n" \ + "\tmovdqa 4*16(%0), %%xmm4\n" \ + "\tmovdqa 5*16(%0), %%xmm5\n" \ + "\tmovdqa 6*16(%0), %%xmm6\n" \ + "\tmovdqa 7*16(%0), %%xmm7\n" \ + : \ + : "r" (addr) \ + : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7" \ + ); \ + } while (0) + +#define ec_gf_store(addr) \ + do \ + { \ + __asm__ __volatile__ \ + ( \ + "\tmovdqa %%xmm0, 0*16(%0)\n" \ + "\tmovdqa %%xmm1, 1*16(%0)\n" \ + "\tmovdqa %%xmm2, 2*16(%0)\n" \ + "\tmovdqa %%xmm3, 3*16(%0)\n" \ + "\tmovdqa %%xmm4, 4*16(%0)\n" \ + "\tmovdqa %%xmm5, 5*16(%0)\n" \ + "\tmovdqa %%xmm6, 6*16(%0)\n" \ + "\tmovdqa %%xmm7, 7*16(%0)\n" \ + : \ + : "r" (addr) \ + : "memory" \ + ); \ + } while (0) + +#define ec_gf_clear() \ + do \ + { \ + __asm__ __volatile__ \ + ( \ + "\tpxor %xmm0, %xmm0\n" \ + "\tpxor %xmm1, %xmm1\n" \ + "\tpxor %xmm2, %xmm2\n" \ + "\tpxor %xmm3, %xmm3\n" \ + "\tpxor %xmm4, %xmm4\n" \ + "\tpxor %xmm5, %xmm5\n" \ + "\tpxor %xmm6, %xmm6\n" \ + "\tpxor %xmm7, %xmm7\n" \ + : \ + : \ + : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7" \ + ); \ + } while (0) + +#define ec_gf_xor(addr) \ + do \ + { \ + __asm__ __volatile__ \ + ( \ + "\tpxor 0*16(%0), %%xmm0\n" \ + "\tpxor 1*16(%0), %%xmm1\n" \ + "\tpxor 2*16(%0), %%xmm2\n" \ + "\tpxor 3*16(%0), %%xmm3\n" \ + "\tpxor 4*16(%0), %%xmm4\n" \ + "\tpxor 5*16(%0), %%xmm5\n" \ + "\tpxor 6*16(%0), %%xmm6\n" \ + "\tpxor 7*16(%0), %%xmm7\n" \ + : \ + : "r" (addr) \ + : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7" \ + ); \ + } while (0) + +extern void (* ec_gf_mul_table[])(void); + +#endif /* __EC_GF_H__ */ |