From 19fcec84d8d7d21e796c7624e521b60d28ee21ed Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:45:59 +0200 Subject: Adding upstream version 16.2.11+ds. Signed-off-by: Daniel Baumann --- src/isa-l/raid/xor_example.c | 70 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 src/isa-l/raid/xor_example.c (limited to 'src/isa-l/raid/xor_example.c') diff --git a/src/isa-l/raid/xor_example.c b/src/isa-l/raid/xor_example.c new file mode 100644 index 000000000..48145ac90 --- /dev/null +++ b/src/isa-l/raid/xor_example.c @@ -0,0 +1,70 @@ +/********************************************************************** + Copyright(c) 2011-2013 Intel Corporation All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +**********************************************************************/ +#include +#include +#include "raid.h" +#include "types.h" + +#define TEST_SOURCES 16 +#define TEST_LEN 16*1024 + +int main(int argc, char *argv[]) +{ + int i, j, should_pass, should_fail; + void *buffs[TEST_SOURCES + 1]; + + printf("XOR example\n"); + for (i = 0; i < TEST_SOURCES + 1; i++) { + void *buf; + if (posix_memalign(&buf, 32, TEST_LEN)) { + printf("alloc error: Fail"); + return 1; + } + buffs[i] = buf; + } + + printf("Make random data\n"); + for (i = 0; i < TEST_SOURCES + 1; i++) + for (j = 0; j < TEST_LEN; j++) + ((char *)buffs[i])[j] = rand(); + + printf("Generate xor parity\n"); + xor_gen(TEST_SOURCES + 1, TEST_LEN, buffs); + + printf("Check parity: "); + should_pass = xor_check(TEST_SOURCES + 1, TEST_LEN, buffs); + printf("%s\n", should_pass == 0 ? "Pass" : "Fail"); + + printf("Find corruption: "); + ((char *)buffs[TEST_SOURCES / 2])[TEST_LEN / 2] ^= 1; // flip one bit + should_fail = xor_check(TEST_SOURCES + 1, TEST_LEN, buffs); //recheck + printf("%s\n", should_fail != 0 ? "Pass" : "Fail"); + + return 0; +} -- cgit v1.2.3