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authorLinus Torvalds <torvalds@linux-foundation.org>2025-03-25 18:33:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-03-25 18:33:04 -0700
commitee6740fd34eb53c5c76be01201c15310f461b69f (patch)
tree09a51108245a2e8f644d1956a9e5b9f974bc23b8 /lib/gen_crc64table.c
parenta86c6d0b2ad12f6ce6560f735f4799cf1f631ab2 (diff)
parentacf9f8da5e19fc1cbf26f2ecb749369e13e7cd85 (diff)
Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC updates from Eric Biggers: "Another set of improvements to the kernel's CRC (cyclic redundancy check) code: - Rework the CRC64 library functions to be directly optimized, like what I did last cycle for the CRC32 and CRC-T10DIF library functions - Rewrite the x86 PCLMULQDQ-optimized CRC code, and add VPCLMULQDQ support and acceleration for crc64_be and crc64_nvme - Rewrite the riscv Zbc-optimized CRC code, and add acceleration for crc_t10dif, crc64_be, and crc64_nvme - Remove crc_t10dif and crc64_rocksoft from the crypto API, since they are no longer needed there - Rename crc64_rocksoft to crc64_nvme, as the old name was incorrect - Add kunit test cases for crc64_nvme and crc7 - Eliminate redundant functions for calculating the Castagnoli CRC32, settling on just crc32c() - Remove unnecessary prompts from some of the CRC kconfig options - Further optimize the x86 crc32c code" * tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (36 commits) x86/crc: drop the avx10_256 functions and rename avx10_512 to avx512 lib/crc: remove unnecessary prompt for CONFIG_CRC64 lib/crc: remove unnecessary prompt for CONFIG_LIBCRC32C lib/crc: remove unnecessary prompt for CONFIG_CRC8 lib/crc: remove unnecessary prompt for CONFIG_CRC7 lib/crc: remove unnecessary prompt for CONFIG_CRC4 lib/crc7: unexport crc7_be_syndrome_table lib/crc_kunit.c: update comment in crc_benchmark() lib/crc_kunit.c: add test and benchmark for crc7_be() x86/crc32: optimize tail handling for crc32c short inputs riscv/crc64: add Zbc optimized CRC64 functions riscv/crc-t10dif: add Zbc optimized CRC-T10DIF function riscv/crc32: reimplement the CRC32 functions using new template riscv/crc: add "template" for Zbc optimized CRC functions x86/crc: add ANNOTATE_NOENDBR to suppress objtool warnings x86/crc32: improve crc32c_arch() code generation with clang x86/crc64: implement crc64_be and crc64_nvme using new template x86/crc-t10dif: implement crc_t10dif using new template x86/crc32: implement crc32_le using new template x86/crc: add "template" for [V]PCLMULQDQ based CRC functions ...
Diffstat (limited to 'lib/gen_crc64table.c')
-rw-r--r--lib/gen_crc64table.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/gen_crc64table.c b/lib/gen_crc64table.c
index 55e222acd0b8..e05a4230a0a0 100644
--- a/lib/gen_crc64table.c
+++ b/lib/gen_crc64table.c
@@ -17,10 +17,10 @@
#include <stdio.h>
#define CRC64_ECMA182_POLY 0x42F0E1EBA9EA3693ULL
-#define CRC64_ROCKSOFT_POLY 0x9A6C9329AC4BC9B5ULL
+#define CRC64_NVME_POLY 0x9A6C9329AC4BC9B5ULL
static uint64_t crc64_table[256] = {0};
-static uint64_t crc64_rocksoft_table[256] = {0};
+static uint64_t crc64_nvme_table[256] = {0};
static void generate_reflected_crc64_table(uint64_t table[256], uint64_t poly)
{
@@ -82,14 +82,14 @@ static void print_crc64_tables(void)
printf("static const u64 ____cacheline_aligned crc64table[256] = {\n");
output_table(crc64_table);
- printf("\nstatic const u64 ____cacheline_aligned crc64rocksofttable[256] = {\n");
- output_table(crc64_rocksoft_table);
+ printf("\nstatic const u64 ____cacheline_aligned crc64nvmetable[256] = {\n");
+ output_table(crc64_nvme_table);
}
int main(int argc, char *argv[])
{
generate_crc64_table(crc64_table, CRC64_ECMA182_POLY);
- generate_reflected_crc64_table(crc64_rocksoft_table, CRC64_ROCKSOFT_POLY);
+ generate_reflected_crc64_table(crc64_nvme_table, CRC64_NVME_POLY);
print_crc64_tables();
return 0;
}