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authorXavier Hernandez <xhernandez@datalab.es>2014-05-05 12:57:34 +0200
committerVijay Bellur <vbellur@redhat.com>2014-07-11 10:33:40 -0700
commitad112305a1c7452b13c92238b40ded80361838f3 (patch)
tree82dbf9aa0b77eb76d43c8b1ccb3ba58e61bc4e2a /xlators/cluster/ec/src/ec-gf.h
parent6b4702897bd56e29db4db06f8cf896f89df1133c (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.h114
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__ */