Quelle  test-vphn.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <byteswap.h>
#include "utils.h"
#include "subunit.h"

#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define cpu_to_be32(x)  bswap_32(x)
#define be32_to_cpu(x)  bswap_32(x)
#define be16_to_cpup(x)  bswap_16(*x)
#define cpu_to_be64(x)  bswap_64(x)
#else
#define cpu_to_be32(x)  (x)
#define be32_to_cpu(x)  (x)
#define be16_to_cpup(x)  (*x)
#define cpu_to_be64(x)  (x)
#endif

#include "vphn.c"

static struct test {
 char *descr;
 long input[VPHN_REGISTER_COUNT];
 u32 expected[VPHN_ASSOC_BUFSIZE];
} all_tests[] = {
 {
  "vphn: no data",
  {
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
  },
  {
   0x00000000
  }
 },
 {
  "vphn: 1 x 16-bit value",
  {
   0x8001ffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
  },
  {
   0x00000001,
   0x00000001
  }
 },
 {
  "vphn: 2 x 16-bit values",
  {
   0x80018002ffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
  },
  {
   0x00000002,
   0x00000001,
   0x00000002
  }
 },
 {
  "vphn: 3 x 16-bit values",
  {
   0x800180028003ffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
  },
  {
   0x00000003,
   0x00000001,
   0x00000002,
   0x00000003
  }
 },
 {
  "vphn: 4 x 16-bit values",
  {
   0x8001800280038004,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
  },
  {
   0x00000004,
   0x00000001,
   0x00000002,
   0x00000003,
   0x00000004
  }
 },
 {
  /* Parsing the next 16-bit value out of the next 64-bit input
 * value.
 */
  "vphn: 5 x 16-bit values",
  {
   0x8001800280038004,
   0x8005ffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
  },
  {
   0x00000005,
   0x00000001,
   0x00000002,
   0x00000003,
   0x00000004,
   0x00000005
  }
 },
 {
  /* Parse at most 6 x 64-bit input values */
  "vphn: 24 x 16-bit values",
  {
   0x8001800280038004,
   0x8005800680078008,
   0x8009800a800b800c,
   0x800d800e800f8010,
   0x8011801280138014,
   0x8015801680178018
  },
  {
   0x00000018,
   0x00000001,
   0x00000002,
   0x00000003,
   0x00000004,
   0x00000005,
   0x00000006,
   0x00000007,
   0x00000008,
   0x00000009,
   0x0000000a,
   0x0000000b,
   0x0000000c,
   0x0000000d,
   0x0000000e,
   0x0000000f,
   0x00000010,
   0x00000011,
   0x00000012,
   0x00000013,
   0x00000014,
   0x00000015,
   0x00000016,
   0x00000017,
   0x00000018
  }
 },
 {
  "vphn: 1 x 32-bit value",
  {
   0x00000001ffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff
  },
  {
   0x00000001,
   0x00000001
  }
 },
 {
  "vphn: 2 x 32-bit values",
  {
   0x0000000100000002,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff
  },
  {
   0x00000002,
   0x00000001,
   0x00000002
  }
 },
 {
  /* Parsing the next 32-bit value out of the next 64-bit input
 * value.
 */
  "vphn: 3 x 32-bit values",
  {
   0x0000000100000002,
   0x00000003ffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff
  },
  {
   0x00000003,
   0x00000001,
   0x00000002,
   0x00000003
  }
 },
 {
  /* Parse at most 6 x 64-bit input values */
  "vphn: 12 x 32-bit values",
  {
   0x0000000100000002,
   0x0000000300000004,
   0x0000000500000006,
   0x0000000700000008,
   0x000000090000000a,
   0x0000000b0000000c
  },
  {
   0x0000000c,
   0x00000001,
   0x00000002,
   0x00000003,
   0x00000004,
   0x00000005,
   0x00000006,
   0x00000007,
   0x00000008,
   0x00000009,
   0x0000000a,
   0x0000000b,
   0x0000000c
  }
 },
 {
  "vphn: 16-bit value followed by 32-bit value",
  {
   0x800100000002ffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff
  },
  {
   0x00000002,
   0x00000001,
   0x00000002
  }
 },
 {
  "vphn: 32-bit value followed by 16-bit value",
  {
   0x000000018002ffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff
  },
  {
   0x00000002,
   0x00000001,
   0x00000002
  }
 },
 {
  /* Parse a 32-bit value split across two consecutives 64-bit
 * input values.
 */
  "vphn: 16-bit value followed by 2 x 32-bit values",
  {
   0x8001000000020000,
   0x0003ffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff
  },
  {
   0x00000003,
   0x00000001,
   0x00000002,
   0x00000003,
   0x00000004,
   0x00000005
  }
 },
 {
  /* The lower bits in 0x0001ffff don't get mixed up with the
 * 0xffff terminator.
 */
  "vphn: 32-bit value has all ones in 16 lower bits",
  {
   0x0001ffff80028003,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff,
   0xffffffffffffffff
  },
  {
   0x00000003,
   0x0001ffff,
   0x00000002,
   0x00000003
  }
 },
 {
  /* The following input doesn't follow the specification.
 */
  "vphn: last 32-bit value is truncated",
  {
   0x0000000100000002,
   0x0000000300000004,
   0x0000000500000006,
   0x0000000700000008,
   0x000000090000000a,
   0x0000000b800c2bad
  },
  {
   0x0000000c,
   0x00000001,
   0x00000002,
   0x00000003,
   0x00000004,
   0x00000005,
   0x00000006,
   0x00000007,
   0x00000008,
   0x00000009,
   0x0000000a,
   0x0000000b,
   0x0000000c
  }
 },
 {
  "vphn: garbage after terminator",
  {
   0xffff2bad2bad2bad,
   0x2bad2bad2bad2bad,
   0x2bad2bad2bad2bad,
   0x2bad2bad2bad2bad,
   0x2bad2bad2bad2bad,
   0x2bad2bad2bad2bad
  },
  {
   0x00000000
  }
 },
 {
  NULL
 }
};

static int test_one(struct test *test)
{
 __be32 output[VPHN_ASSOC_BUFSIZE] = { 0 };
 int i, len;

 vphn_unpack_associativity(test->input, output);

 len = be32_to_cpu(output[0]);
 if (len != test->expected[0]) {
  printf("expected %d elements, got %d\n", test->expected[0],
         len);
  return 1;
 }

 for (i = 1; i < len; i++) {
  u32 val = be32_to_cpu(output[i]);
  if (val != test->expected[i]) {
   printf("element #%d is 0x%x, should be 0x%x\n", i, val,
          test->expected[i]);
   return 1;
  }
 }

 return 0;
}

static int test_vphn(void)
{
 static struct test *test;

 for (test = all_tests; test->descr; test++) {
  int ret;

  ret = test_one(test);
  test_finish(test->descr, ret);
  if (ret)
   return ret;
 }

 return 0;
}

int main(int argc, char **argv)
{
 return test_harness(test_vphn, "test-vphn");
}