diff options
| author | Xavier Hernandez <xhernandez@datalab.es> | 2015-12-01 11:50:54 +0100 |
|---|---|---|
| committer | Pranith Kumar Karampuri <pkarampu@redhat.com> | 2016-09-09 19:19:13 -0700 |
| commit | 05505c86e02a01ccd4ba2752de2bea4ebd9385a6 (patch) | |
| tree | 6103a92fc4b93b85783fd6e71d8c9a5fac7ea352 /xlators/cluster/ec/src/ec-method.h | |
| parent | 213eadbb51ad1ff4b012113a8e1066b758a4e635 (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 <xhernandez@datalab.es>
>Reviewed-on: http://review.gluster.org/12837
>Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
>Smoke: Gluster Build System <jenkins@build.gluster.org>
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
>Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
BUG: 1374841
Change-Id: I83731663922ed11ca84536deab5737463416e1e0
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/15455
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Diffstat (limited to 'xlators/cluster/ec/src/ec-method.h')
| -rw-r--r-- | xlators/cluster/ec/src/ec-method.h | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/xlators/cluster/ec/src/ec-method.h b/xlators/cluster/ec/src/ec-method.h index 29b46e10443..818b54de872 100644 --- a/xlators/cluster/ec/src/ec-method.h +++ b/xlators/cluster/ec/src/ec-method.h @@ -1,5 +1,5 @@ /* - Copyright (c) 2012-2014 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 licensed to you under your choice of the GNU Lesser @@ -11,7 +11,15 @@ #ifndef __EC_METHOD_H__ #define __EC_METHOD_H__ -#include "ec-gf.h" +#include "xlator.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 @@ -21,12 +29,18 @@ #define EC_METHOD_WORD_SIZE 64 #define EC_METHOD_CHUNK_SIZE (EC_METHOD_WORD_SIZE * EC_GF_BITS) -#define EC_METHOD_WIDTH (EC_METHOD_WORD_SIZE / EC_GF_WORD_SIZE) -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); +gf_boolean_t ec_method_init(xlator_t *xl, ec_matrix_list_t *list, + uint32_t columns, uint32_t rows, uint32_t max, + const char *gen); +void ec_method_fini(ec_matrix_list_t *list); +gf_boolean_t ec_method_update(xlator_t *xl, ec_matrix_list_t *list, + const char *gen); + +void ec_method_encode(ec_matrix_list_t *list, size_t size, void *in, + void **out); +gf_boolean_t ec_method_decode(ec_matrix_list_t *list, size_t size, + uintptr_t mask, uint32_t *rows, void **in, + void *out); #endif /* __EC_METHOD_H__ */ |