ceph/src/seastar/dpdk/drivers/net/nfp/nfpcore/nfp_crc.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Netronome Systems, Inc.
   3  * All rights reserved.
   4  */
   5
   6 #ifndef __NFP_CRC_H__
   7 #define __NFP_CRC_H__
   8
   9 /*
  10  * There are multiple 16-bit CRC polynomials in common use, but this is
  11  * *the* standard CRC-32 polynomial, first popularized by Ethernet.
  12  * x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x^1+x^0
  13  */
  14 #define CRCPOLY_LE 0xedb88320
  15 #define CRCPOLY_BE 0x04c11db7
  16
  17 uint32_t nfp_crc32_posix(const void *buff, size_t len);
  18
  19 #endif