path: root/xlators/cluster/ec/src/ec-helpers.h
diff options
authorXavier Hernandez <>2015-12-01 11:50:54 +0100
committerPranith Kumar Karampuri <>2016-09-08 10:08:25 -0700
commit593b7a83f7408e59ab7b3ef7dfc4fe4096d6e3cd (patch)
tree1a60ff784e7759c5dddb2352c5526f16e8696013 /xlators/cluster/ec/src/ec-helpers.h
parent8a6236e4cfc7bf86e881e5c770a19040a6060ad0 (diff)
cluster/ec: Add support for hardware acceleration
This patch implements functionalities for fast encoding/decoding using hardware support. Currently optimized x86_64, SSE and AVX is added. Additionally this patch implements a caching mecanism for inverse matrices to reduce computation time, as well as a new method for computing the inverse that takes quadratic time instead of cubic. Finally some unnecessary memory copies have been eliminated to further increase performance. Change-Id: I26c75f26fb4201bd22b51335448ea4357235065a BUG: 1289922 Signed-off-by: Xavier Hernandez <> Reviewed-on: Tested-by: Pranith Kumar Karampuri <> Smoke: Gluster Build System <> NetBSD-regression: NetBSD Build System <> CentOS-regression: Gluster Build System <> Reviewed-by: Pranith Kumar Karampuri <>
Diffstat (limited to 'xlators/cluster/ec/src/ec-helpers.h')
1 files changed, 6 insertions, 2 deletions
diff --git a/xlators/cluster/ec/src/ec-helpers.h b/xlators/cluster/ec/src/ec-helpers.h
index 93d77726089..dfea6fef537 100644
--- a/xlators/cluster/ec/src/ec-helpers.h
+++ b/xlators/cluster/ec/src/ec-helpers.h
@@ -11,7 +11,10 @@
#ifndef __EC_HELPERS_H__
#define __EC_HELPERS_H__
-#include "ec-data.h"
+#include "ec-types.h"
+#define EC_ALIGN_CHECK(_ptr, _align) \
+ ((((uintptr_t)(_ptr)) & ((_align) - 1)) == 0)
const char * ec_bin(char * str, size_t size, uint64_t value, int32_t digits);
const char * ec_fop_name(int32_t id);
@@ -19,7 +22,8 @@ void ec_trace(const char * event, ec_fop_data_t * fop, const char * fmt, ...);
int32_t ec_bits_consume(uint64_t * n);
size_t ec_iov_copy_to(void * dst, struct iovec * vector, int32_t count,
off_t offset, size_t size);
+int32_t ec_buffer_alloc(xlator_t *xl, size_t size, struct iobref **piobref,
+ void **ptr);
int32_t ec_dict_set_array(dict_t *dict, char *key,
uint64_t *value, int32_t size);
int32_t ec_dict_del_array(dict_t *dict, char *key,