diff options
| author | Jim Kukunas <james.t.kukunas@linux.intel.com> | 2012-05-22 05:54:18 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-05-22 05:54:18 +0200 |
| commit | 048a8b8c89dc427dd7a58527c8923224b1e66d83 (patch) | |
| tree | c8e09964537839f3848d0ad0e25ee40e873c3d09 /lib/raid6/mktables.c | |
| parent | lib/raid6: fix test program build (diff) | |
| download | linux-048a8b8c89dc427dd7a58527c8923224b1e66d83.tar.xz linux-048a8b8c89dc427dd7a58527c8923224b1e66d83.zip | |
lib/raid6: Add SSSE3 optimized recovery functions
Add SSSE3 optimized recovery functions, as well as a system
for selecting the most appropriate recovery functions to use.
Originally-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'lib/raid6/mktables.c')
| -rw-r--r-- | lib/raid6/mktables.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/raid6/mktables.c b/lib/raid6/mktables.c index 8a3780902cec..39787db588b0 100644 --- a/lib/raid6/mktables.c +++ b/lib/raid6/mktables.c @@ -81,6 +81,31 @@ int main(int argc, char *argv[]) printf("EXPORT_SYMBOL(raid6_gfmul);\n"); printf("#endif\n"); + /* Compute vector multiplication table */ + printf("\nconst u8 __attribute__((aligned(256)))\n" + "raid6_vgfmul[256][32] =\n" + "{\n"); + for (i = 0; i < 256; i++) { + printf("\t{\n"); + for (j = 0; j < 16; j += 8) { + printf("\t\t"); + for (k = 0; k < 8; k++) + printf("0x%02x,%c", gfmul(i, j + k), + (k == 7) ? '\n' : ' '); + } + for (j = 0; j < 16; j += 8) { + printf("\t\t"); + for (k = 0; k < 8; k++) + printf("0x%02x,%c", gfmul(i, (j + k) << 4), + (k == 7) ? '\n' : ' '); + } + printf("\t},\n"); + } + printf("};\n"); + printf("#ifdef __KERNEL__\n"); + printf("EXPORT_SYMBOL(raid6_vgfmul);\n"); + printf("#endif\n"); + /* Compute power-of-2 table (exponent) */ v = 1; printf("\nconst u8 __attribute__((aligned(256)))\n" |