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authorDamjan Marion <damarion@cisco.com>2018-03-26 14:09:38 +0200
committerDamjan Marion <dmarion.lists@gmail.com>2018-03-28 13:41:15 +0000
commit23d4e8a6b5a3824ef5390061cf3dd7001ca760e8 (patch)
tree9858d5a59e0f42e330c315825cfec0d23d09e193 /extras/libmemif/src
parentb3caf557300adc6208a7bb6b985a80ef118c5a9d (diff)
Build libmemif as part of verify job
Change-Id: I7e808b5bcbb74343a4ed6782f115ed07e9bfe3a6 Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Diffstat (limited to 'extras/libmemif/src')
-rw-r--r--extras/libmemif/src/main.c2
-rw-r--r--extras/libmemif/src/memif_private.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/extras/libmemif/src/main.c b/extras/libmemif/src/main.c
index 42bced67dae..dc4a6231118 100644
--- a/extras/libmemif/src/main.c
+++ b/extras/libmemif/src/main.c
@@ -1346,7 +1346,7 @@ memif_init_regions_and_queues (memif_connection_t * conn)
(conn->run_args.num_s2m_rings + conn->run_args.num_m2s_rings);
if ((r->fd =
- memif_memfd_create ("memif region 0", MFD_ALLOW_SEALING)) == -1)
+ memfd_create ("memif region 0", MFD_ALLOW_SEALING)) == -1)
return memif_syscall_error_handler (errno);
if ((fcntl (r->fd, F_ADD_SEALS, F_SEAL_SHRINK)) == -1)
diff --git a/extras/libmemif/src/memif_private.h b/extras/libmemif/src/memif_private.h
index b1039f9d385..accdac361b9 100644
--- a/extras/libmemif/src/memif_private.h
+++ b/extras/libmemif/src/memif_private.h
@@ -215,7 +215,7 @@ int free_list_elt (memif_list_elt_t * list, uint16_t len, int key);
#ifndef HAVE_MEMFD_CREATE
static inline int
-memif_memfd_create (const char *name, unsigned int flags)
+memfd_create (const char *name, unsigned int flags)
{
return syscall (__NR_memfd_create, name, flags);
}
224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * ip/ip_packet.h: packet format common between ip4 & ip6
 *
 * Copyright (c) 2008 Eliot Dresselhaus
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef included_ip_packet_h
#define included_ip_packet_h

#include <vppinfra/byte_order.h>
#include <vppinfra/error.h>

typedef enum ip_protocol
{
#define ip_protocol(n,s) IP_PROTOCOL_##s = n,
#include "protocols.def"
#undef ip_protocol
} ip_protocol_t;

/* TCP/UDP ports. */
typedef enum
{
#define ip_port(s,n) IP_PORT_##s = n,
#include "ports.def"
#undef ip_port
} ip_port_t;

/* Classifies protocols into UDP, ICMP or other. */
typedef enum
{
  IP_BUILTIN_PROTOCOL_UDP,
  IP_BUILTIN_PROTOCOL_ICMP,
  IP_BUILTIN_PROTOCOL_UNKNOWN,
} ip_builtin_protocol_t;

#define foreach_ip_builtin_multicast_group	\
  _ (1, all_hosts_on_subnet)			\
  _ (2, all_routers_on_subnet)			\
  _ (4, dvmrp)					\
  _ (5, ospf_all_routers)			\
  _ (6, ospf_designated_routers)		\
  _ (13, pim)					\
  _ (18, vrrp)					\
  _ (102, hsrp)					\
  _ (22, igmp_v3)

typedef enum
{
#define _(n,f) IP_MULTICAST_GROUP_##f = n,
  foreach_ip_builtin_multicast_group
#undef _
} ip_multicast_group_t;

/* IP checksum support. */

static_always_inline u16
ip_csum (void *data, u16 n_left)
{
  u32 sum;
#ifdef CLIB_HAVE_VEC256
  u16x16 v1, v2;
  u32x8 zero = { 0 };
  u32x8 sum8 = { 0 };
  u32x4 sum4;
#endif

  /* if there is odd number of bytes, pad by zero and store in sum */
  sum = (n_left & 1) ? ((u8 *) data)[n_left - 1] << 8 : 0;

  /* we deal with words */
  n_left >>= 1;

#ifdef CLIB_HAVE_VEC256
  while (n_left >= 32)
    {
      v1 = u16x16_load_unaligned (data);
      v2 = u16x16_load_unaligned (data + 32);

#ifdef CLIB_ARCH_IS_LITTLE_ENDIAN
      v1 = u16x16_byte_swap (v1);
      v2 = u16x16_byte_swap (v2);
#endif
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_lo (v1));
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_hi (v1));
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_lo (v2));
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_hi (v2));
      n_left -= 32;
      data += 64;
    }

  if (n_left >= 16)
    {
      v1 = u16x16_load_unaligned (data);
#ifdef CLIB_ARCH_IS_LITTLE_ENDIAN
      v1 = u16x16_byte_swap (v1);
#endif
      v1 = u16x16_byte_swap (u16x16_load_unaligned (data));
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_lo (v1));
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_hi (v1));
      n_left -= 16;
      data += 32;
    }

  if (n_left)
    {
      v1 = u16x16_load_unaligned (data);
#ifdef CLIB_ARCH_IS_LITTLE_ENDIAN
      v1 = u16x16_byte_swap (v1);
#endif
      v1 = u16x16_mask_last (v1, 16 - n_left);
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_lo (v1));
      sum8 += u16x8_extend_to_u32x8 (u16x16_extract_hi (v1));
    }

  sum8 = u32x8_hadd (sum8, zero);
  sum4 = u32x8_extract_lo (sum8) + u32x8_extract_hi (sum8);
  sum = sum4[0] + sum4[1];

#else
  /* scalar version */
  while (n_left >= 8)
    {
      sum += clib_net_to_host_u16 (*((u16 *) data + 0));
      sum += clib_net_to_host_u16 (*((u16 *) data + 1));
      sum += clib_net_to_host_u16 (*((u16 *) data + 2));
      sum += clib_net_to_host_u16 (*((u16 *) data + 3));
      sum += clib_net_to_host_u16 (*((u16 *) data + 4));
      sum += clib_net_to_host_u16 (*((u16 *) data + 5));
      sum += clib_net_to_host_u16 (*((u16 *) data + 6));
      sum += clib_net_to_host_u16 (*((u16 *) data + 7));
      n_left -= 8;
      data += 16;
    }
  while (n_left)
    {
      sum += clib_net_to_host_u16 (*(u16 *) data);
      n_left -= 1;
      data += 2;
    }
#endif

  sum = (sum & 0xffff) + (sum >> 16);
  sum = (sum & 0xffff) + (sum >> 16);
  return ~((u16) sum);
}

/* Incremental checksum update. */
typedef uword ip_csum_t;

always_inline ip_csum_t
ip_csum_with_carry (ip_csum_t sum, ip_csum_t x)
{
  ip_csum_t t = sum + x;
  return t + (t < x);
}

/* Update checksum changing field at even byte offset from x -> 0. */
always_inline ip_csum_t
ip_csum_add_even (ip_csum_t c, ip_csum_t x)
{
  ip_csum_t d;

  d = c - x;

  /* Fold in carry from high bit. */
  d -= d > c;

  ip_csum_t t = ip_csum_with_carry (d, x);
  ASSERT ((t - c == 0) || (t - c == ~0));

  return d;
}

/* Update checksum changing field at even byte offset from 0 -> x. */
always_inline ip_csum_t
ip_csum_sub_even (ip_csum_t c, ip_csum_t x)
{
  return ip_csum_with_carry (c, x);
}

always_inline ip_csum_t
ip_csum_update_inline (ip_csum_t sum, ip_csum_t old, ip_csum_t new,
		       u32 field_byte_offset, u32 field_n_bytes)
{
  /* For even 1-byte fields on big-endian and odd 1-byte fields on little endian
     we need to shift byte into place for checksum. */
  if ((field_n_bytes % 2)
      && (field_byte_offset % 2) == CLIB_ARCH_IS_LITTLE_ENDIAN)
    {
      old = old << 8;
      new = new << 8;
    }
  sum = ip_csum_sub_even (sum, old);
  sum = ip_csum_add_even (sum, new);
  return sum;
}

#define ip_csum_update(sum,old,new,type,field)			\
  ip_csum_update_inline ((sum), (old), (new),			\
			 STRUCT_OFFSET_OF (type, field),	\
			 STRUCT_SIZE_OF (type, field))

always_inline u16
ip_csum_fold (ip_csum_t c)
{
  /* Reduce to 16 bits. */
#if uword_bits == 64
  c = (c & (ip_csum_t) 0xffffffff) + (c >> (ip_csum_t) 32);
  c = (c & 0xffff) + (c >> 16);
#endif

  c = (c & 0xffff) + (c >> 16);
  c = (c & 0xffff) + (c >> 16);

  return c;
}

extern ip_csum_t (*vnet_incremental_checksum_fp) (ip_csum_t, void *, uword);

always_inline ip_csum_t
ip_incremental_checksum (ip_csum_t sum, void *_data, uword n_bytes)
{
  return (*vnet_incremental_checksum_fp) (sum, _data, n_bytes);
}

always_inline u16
ip_csum_and_memcpy_fold (ip_csum_t sum, void *dst)
{
  return ip_csum_fold (sum);
}

/* Checksum routine. */
ip_csum_t ip_incremental_checksum (ip_csum_t sum, void *data, uword n_bytes);

#endif /* included_ip_packet_h */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */