Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Eric Biggers |
116 |
87.88% |
5 |
71.43% |
| Herbert Xu |
9 |
6.82% |
1 |
14.29% |
| Martin K. Petersen |
7 |
5.30% |
1 |
14.29% |
| Total |
132 |
|
7 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* CRC-T10DIF using [V]PCLMULQDQ instructions
*
* Copyright 2024 Google LLC
*/
#include <linux/crc-t10dif.h>
#include <linux/module.h>
#include "crc-pclmul-template.h"
static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_pclmulqdq);
DECLARE_CRC_PCLMUL_FUNCS(crc16_msb, u16);
u16 crc_t10dif_arch(u16 crc, const u8 *p, size_t len)
{
CRC_PCLMUL(crc, p, len, crc16_msb, crc16_msb_0x8bb7_consts,
have_pclmulqdq);
return crc_t10dif_generic(crc, p, len);
}
EXPORT_SYMBOL(crc_t10dif_arch);
static int __init crc_t10dif_x86_init(void)
{
if (boot_cpu_has(X86_FEATURE_PCLMULQDQ)) {
static_branch_enable(&have_pclmulqdq);
INIT_CRC_PCLMUL(crc16_msb);
}
return 0;
}
subsys_initcall(crc_t10dif_x86_init);
static void __exit crc_t10dif_x86_exit(void)
{
}
module_exit(crc_t10dif_x86_exit);
MODULE_DESCRIPTION("CRC-T10DIF using [V]PCLMULQDQ instructions");
MODULE_LICENSE("GPL");