summaryrefslogtreecommitdiffstats
path: root/xlators/cluster/ec/src/ec-method.h
diff options
context:
space:
mode:
Diffstat (limited to 'xlators/cluster/ec/src/ec-method.h')
-rw-r--r--xlators/cluster/ec/src/ec-method.h60
1 files changed, 33 insertions, 27 deletions
diff --git a/xlators/cluster/ec/src/ec-method.h b/xlators/cluster/ec/src/ec-method.h
index 64e724ff3f0..f91233b2f88 100644
--- a/xlators/cluster/ec/src/ec-method.h
+++ b/xlators/cluster/ec/src/ec-method.h
@@ -1,42 +1,48 @@
/*
- Copyright (c) 2012 DataLab, s.l. <http://www.datalab.es>
+ Copyright (c) 2012-2015 DataLab, s.l. <http://www.datalab.es>
+ This file is part of GlusterFS.
- 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/>.
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
*/
#ifndef __EC_METHOD_H__
#define __EC_METHOD_H__
-#include "ec-gf.h"
+#include "ec-types.h"
+#include "ec-galois.h"
+
+#define EC_GF_BITS 8
+#define EC_GF_MOD 0x11D
+#define EC_GF_SIZE (1 << EC_GF_BITS)
+
+/* Determines the maximum size of the matrix used to encode/decode data */
#define EC_METHOD_MAX_FRAGMENTS 16
+/* Determines the maximum number of usable elements in the Galois Field */
+#define EC_METHOD_MAX_NODES (EC_GF_SIZE - 1)
+
+#define EC_METHOD_WORD_SIZE 64
+
+#define EC_METHOD_CHUNK_SIZE (EC_METHOD_WORD_SIZE * EC_GF_BITS)
+
+int32_t
+ec_method_init(xlator_t *xl, ec_matrix_list_t *list, uint32_t columns,
+ uint32_t rows, uint32_t max, const char *gen);
-#define EC_METHOD_WORD_SIZE 16
+void
+ec_method_fini(ec_matrix_list_t *list);
-#define EC_BUFFER_ALIGN_SIZE EC_METHOD_WORD_SIZE
+int32_t
+ec_method_update(xlator_t *xl, ec_matrix_list_t *list, const char *gen);
-#define EC_METHOD_BITS EC_GF_BITS
-#define EC_METHOD_SIZE (1 << (EC_METHOD_BITS))
-#define EC_METHOD_CHUNK_SIZE (EC_METHOD_WORD_SIZE * EC_METHOD_BITS)
+void
+ec_method_encode(ec_matrix_list_t *list, uint64_t size, void *in, void **out);
-void ec_method_initialize(void);
-size_t ec_method_encode(size_t size, uint32_t columns, uint32_t row,
- uint8_t * in, uint8_t * out);
-size_t ec_method_decode(size_t size, uint32_t columns, uint32_t * rows,
- uint8_t ** in, uint8_t * out);
+int32_t
+ec_method_decode(ec_matrix_list_t *list, uint64_t size, uintptr_t mask,
+ uint32_t *rows, void **in, void *out);
#endif /* __EC_METHOD_H__ */