remove ceph code

[stor4nfv.git] / src / ceph / src / common / crc32c_ppc.c

diff --git a/src/ceph/src/common/crc32c_ppc.c b/src/ceph/src/common/crc32c_ppc.c
deleted file mode 100644 (file)
index 43756e2..0000000
--- a/src/ceph/src/common/crc32c_ppc.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/* Copyright (C) 2017 International Business Machines Corp.
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#define CRC_TABLE
-#define FAST_ZERO_TABLE
-
-#include "acconfig.h"
-#include "include/int_types.h"
-#include "crc32c_ppc_constants.h"
-#include "reverse.h"
-
-#include <stdlib.h>
-#include <strings.h>
-
-#define VMX_ALIGN      16
-#define VMX_ALIGN_MASK (VMX_ALIGN-1)
-
-#ifdef REFLECT
-static unsigned int crc32_align(unsigned int crc, unsigned char const *p,
-                                unsigned long len)
-{
-  while (len--)
-    crc = crc_table[(crc ^ *p++) & 0xff] ^ (crc >> 8);
-  return crc;
-}
-#else
-static unsigned int crc32_align(unsigned int crc, unsigned char const *p,
-                                unsigned long len)
-{
-  while (len--)
-    crc = crc_table[((crc >> 24) ^ *p++) & 0xff] ^ (crc << 8);
-  return crc;
-}
-#endif
-
-#ifdef HAVE_POWER8
-static inline unsigned long polynomial_multiply(unsigned int a, unsigned int b) {
-        vector unsigned int va = {a, 0, 0, 0};
-        vector unsigned int vb = {b, 0, 0, 0};
-        vector unsigned long vt;
-
-        __asm__("vpmsumw %0,%1,%2" : "=v"(vt) : "v"(va), "v"(vb));
-
-        return vt[0];
-}
-
-unsigned int barrett_reduction(unsigned long val);
-
-static inline unsigned int gf_multiply(unsigned int a, unsigned int b) {
-        return barrett_reduction(polynomial_multiply(a, b));
-}
-
-unsigned int append_zeros(unsigned int crc, unsigned long length) {
-        unsigned long i = 0;
-
-        while (length) {
-                if (length & 1) {
-                        crc = gf_multiply(crc, crc_zero[i]);
-                }
-                i++;
-                length /= 2;
-        }
-
-        return crc;
-}
-
-
-unsigned int __crc32_vpmsum(unsigned int crc, unsigned char const *p,
-                            unsigned long len);
-
-static uint32_t crc32_vpmsum(uint32_t crc, unsigned char const *data,
-                             unsigned len)
-{
-  unsigned int prealign;
-  unsigned int tail;
-
-#ifdef CRC_XOR
-  crc ^= 0xffffffff;
-#endif
-
-  if (len < VMX_ALIGN + VMX_ALIGN_MASK) {
-    crc = crc32_align(crc, data, (unsigned long)len);
-    goto out;
-  }
-
-  if ((unsigned long)data & VMX_ALIGN_MASK) {
-    prealign = VMX_ALIGN - ((unsigned long)data & VMX_ALIGN_MASK);
-    crc = crc32_align(crc, data, prealign);
-    len -= prealign;
-    data += prealign;
-  }
-
-  crc = __crc32_vpmsum(crc, data, (unsigned long)len & ~VMX_ALIGN_MASK);
-
-  tail = len & VMX_ALIGN_MASK;
-  if (tail) {
-    data += len & ~VMX_ALIGN_MASK;
-    crc = crc32_align(crc, data, tail);
-  }
-
-out:
-#ifdef CRC_XOR
-  crc ^= 0xffffffff;
-#endif
-
-  return crc;
-}
-
-/* This wrapper function works around the fact that crc32_vpmsum 
- * does not gracefully handle the case where the data pointer is NULL.
- */
-uint32_t ceph_crc32c_ppc(uint32_t crc, unsigned char const *data, unsigned len)
-{
-  if (!data) {
-    /* Handle the NULL buffer case. */
-#ifdef REFLECT
-    crc = reverse_bits(crc);
-#endif
-
-    crc = append_zeros(crc, len);
-
-#ifdef REFLECT
-    crc = reverse_bits(crc);
-#endif
-  } else {
-    /* Handle the valid buffer case. */
-    crc = crc32_vpmsum(crc, data, (unsigned long)len);
-  }
-  return crc;
-}
-
-#else /* HAVE_POWER8 */
-
-/* This symbol has to exist on non-ppc architectures (and on legacy
- * ppc systems using power7 or below) in order to compile properly
- * there, even though it won't be called.
- */
-uint32_t ceph_crc32c_ppc(uint32_t crc, unsigned char const *data, unsigned len)
-{
-  return 0;
-}
-
-#endif /* HAVE_POWER8 */