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authorGabriel Ganne <gabriel.ganne@enea.com>2017-12-14 16:20:37 +0100
committerDamjan Marion <dmarion.lists@gmail.com>2017-12-16 19:32:25 +0000
commit8e66b9bf4ba90279631e6a0e8ccc2eab5f9156c2 (patch)
treee76209cf954906eda9c0f50b029f87637bdb9099 /src/vnet
parentf9dc9c4629bb9756013f7c727d67e0d3990cff3c (diff)
Use crc32 wrapper (VPP-1086)
This allows arm platforms to also take advantage of crc32 hardware acceleration. * add a wrapper for crc32_u64. It's the only one really used. Using it instead of a call to clib_crc32c() eases building symmetrical hash functions. * replace #ifdef on SSE4 by a test on clib_crc32c_uses_intrinsics. Note: keep the test on i386 * fix typo in lb test log Change-Id: I03a0897b70f6c1717e6901d93cf0fe024d5facb5 Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>
Diffstat (limited to 'src/vnet')
-rw-r--r--src/vnet/bfd/bfd_main.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/vnet/bfd/bfd_main.c b/src/vnet/bfd/bfd_main.c
index 5d1c5404333..668a44e89e5 100644
--- a/src/vnet/bfd/bfd_main.c
+++ b/src/vnet/bfd/bfd_main.c
@@ -39,10 +39,10 @@ static u64
bfd_calc_echo_checksum (u32 discriminator, u64 expire_time, u32 secret)
{
u64 checksum = 0;
-#if __SSE4_2__ && !defined (__i386__)
- checksum = _mm_crc32_u64 (0, discriminator);
- checksum = _mm_crc32_u64 (checksum, expire_time);
- checksum = _mm_crc32_u64 (checksum, secret);
+#if defined(clib_crc32c_uses_intrinsics) && !defined (__i386__)
+ checksum = crc32_u64 (0, discriminator);
+ checksum = crc32_u64 (checksum, expire_time);
+ checksum = crc32_u64 (checksum, secret);
#else
checksum = clib_xxhash (discriminator ^ expire_time ^ secret);
#endif
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from vpp_interface import VppInterface
from vpp_papi import VppEnum


INDEX_INVALID = 0xffffffff


def find_vxlan_gbp_tunnel(test, src, dst, vni):
    ts = test.vapi.vxlan_gbp_tunnel_dump(INDEX_INVALID)
    for t in ts:
        if src == str(t.tunnel.src) and \
           dst == str(t.tunnel.dst) and \
           t.tunnel.vni == vni:
            return t.tunnel.sw_if_index
    return INDEX_INVALID


class VppVxlanGbpTunnel(VppInterface):
    """
    VPP VXLAN GBP interface
    """

    def __init__(self, test, src, dst, vni, mcast_itf=None, mode=None,
                 is_ipv6=None, encap_table_id=None, instance=0xffffffff):
        """ Create VXLAN-GBP Tunnel interface """
        super(VppVxlanGbpTunnel, self).__init__(test)
        self.src = src
        self.dst = dst
        self.vni = vni
        self.mcast_itf = mcast_itf
        self.ipv6 = is_ipv6
        self.encap_table_id = encap_table_id
        self.instance = instance
        if not mode:
            self.mode = (VppEnum.vl_api_vxlan_gbp_api_tunnel_mode_t.
                         VXLAN_GBP_API_TUNNEL_MODE_L2)
        else:
            self.mode = mode

    def add_vpp_config(self):
        mcast_sw_if_index = INDEX_INVALID
        if (self.mcast_itf):
            mcast_sw_if_index = self.mcast_itf.sw_if_index
        reply = self.test.vapi.vxlan_gbp_tunnel_add_del(
            is_add=1,
            tunnel={
                'src': self.src,
                'dst': self.dst,
                'mode': self.mode,
                'vni': self.vni,
                'mcast_sw_if_index': mcast_sw_if_index,
                'encap_table_id': self.encap_table_id,
                'instance': self.instance
            })
        self.set_sw_if_index(reply.sw_if_index)
        self._test.registry.register(self, self._test.logger)

    def remove_vpp_config(self):
        mcast_sw_if_index = INDEX_INVALID
        if (self.mcast_itf):
            mcast_sw_if_index = self.mcast_itf.sw_if_index
        self.test.vapi.vxlan_gbp_tunnel_add_del(
            is_add=0,
            tunnel={
                'src': self.src,
                'dst': self.dst,
                'mode': self.mode,
                'vni': self.vni,
                'mcast_sw_if_index': mcast_sw_if_index,
                'encap_table_id': self.encap_table_id,
                'instance': self.instance,
            })

    def query_vpp_config(self):
        return (INDEX_INVALID != find_vxlan_gbp_tunnel(self._test,
                                                       self.src,
                                                       self.dst,
                                                       self.vni))

    def object_id(self):
        return "vxlan-gbp-%d-%d-%s-%s" % (self.sw_if_index, self.vni,
                                          self.src, self.dst)