/*                                                                -*- c -*-
 * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
 *
 * 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.
 */

#define N_NXM_DL_TYPES 2

#define NXM_DL_NONE   (0, 0)
#define NXM_DL_ARP    (ETH_TYPE_ARP, 0)
#define NXM_DL_IP     (ETH_TYPE_IP, 0)
#define NXM_DL_IPV6   (ETH_TYPE_IPV6, 0)
#define NXM_DL_IP_ANY (ETH_TYPE_IP, ETH_TYPE_IPV6)

#define DEFINE_FIELD_M(HEADER, WILDCARD, DL_TYPES, NW_PROTO, WRITABLE)  \
    DEFINE_FIELD(HEADER, WILDCARD, DL_TYPES, NW_PROTO, WRITABLE)        \
    DEFINE_FIELD(HEADER##_W, WILDCARD, DL_TYPES, NW_PROTO, false)

/*             NXM_ suffix     FWW_* bit     dl_types       nw_proto      rw? */
/*             ------------    ------------  -----------    ------------- --- */
DEFINE_FIELD_M(NX_TUN_ID,      0,            NXM_DL_NONE,   0,            true)
DEFINE_FIELD  (OF_IN_PORT,     FWW_IN_PORT,  NXM_DL_NONE,   0,            false)
DEFINE_FIELD_M(OF_ETH_DST,     0,            NXM_DL_NONE,   0,            false)
DEFINE_FIELD  (OF_ETH_SRC,     FWW_DL_SRC,   NXM_DL_NONE,   0,            false)
DEFINE_FIELD  (OF_ETH_TYPE,    FWW_DL_TYPE,  NXM_DL_NONE,   0,            false)
DEFINE_FIELD_M(OF_VLAN_TCI,    0,            NXM_DL_NONE,   0,            true)
DEFINE_FIELD  (OF_IP_TOS,      FWW_NW_TOS,   NXM_DL_IP_ANY, 0,            false)
DEFINE_FIELD  (OF_IP_PROTO,    FWW_NW_PROTO, NXM_DL_IP_ANY, 0,            false)
DEFINE_FIELD_M(OF_IP_SRC,      0,            NXM_DL_IP,     0,            false)
DEFINE_FIELD_M(OF_IP_DST,      0,            NXM_DL_IP,     0,            false)
DEFINE_FIELD  (OF_TCP_SRC,     FWW_TP_SRC,   NXM_DL_IP_ANY, IPPROTO_TCP,  false)
DEFINE_FIELD  (OF_TCP_DST,     FWW_TP_DST,   NXM_DL_IP_ANY, IPPROTO_TCP,  false)
DEFINE_FIELD  (OF_UDP_SRC,     FWW_TP_SRC,   NXM_DL_IP_ANY, IPPROTO_UDP,  false)
DEFINE_FIELD  (OF_UDP_DST,     FWW_TP_DST,   NXM_DL_IP_ANY, IPPROTO_UDP,  false)
DEFINE_FIELD  (OF_ICMP_TYPE,   FWW_TP_SRC,   NXM_DL_IP,     IPPROTO_ICMP, false)
DEFINE_FIELD  (OF_ICMP_CODE,   FWW_TP_DST,   NXM_DL_IP,     IPPROTO_ICMP, false)
DEFINE_FIELD  (OF_ARP_OP,      FWW_NW_PROTO, NXM_DL_ARP,    0,            false)
DEFINE_FIELD_M(OF_ARP_SPA,     0,            NXM_DL_ARP,    0,            false)
DEFINE_FIELD_M(OF_ARP_TPA,     0,            NXM_DL_ARP,    0,            false)
DEFINE_FIELD  (NX_ARP_SHA,     FWW_ARP_SHA,  NXM_DL_ARP,    0,            false)
DEFINE_FIELD  (NX_ARP_THA,     FWW_ARP_THA,  NXM_DL_ARP,    0,            false)
DEFINE_FIELD_M(NX_IPV6_SRC,    0,            NXM_DL_IPV6,   0,            false)
DEFINE_FIELD_M(NX_IPV6_DST,    0,            NXM_DL_IPV6,   0,            false)
DEFINE_FIELD  (NX_ICMPV6_TYPE, FWW_TP_SRC,   NXM_DL_IPV6, IPPROTO_ICMPV6, false)
DEFINE_FIELD  (NX_ICMPV6_CODE, FWW_TP_DST,   NXM_DL_IPV6, IPPROTO_ICMPV6, false)
DEFINE_FIELD  (NX_ND_TARGET,   FWW_ND_TARGET,NXM_DL_IPV6, IPPROTO_ICMPV6, false)
DEFINE_FIELD  (NX_ND_SLL,      FWW_ARP_SHA,  NXM_DL_IPV6, IPPROTO_ICMPV6, false)
DEFINE_FIELD  (NX_ND_TLL,      FWW_ARP_THA,  NXM_DL_IPV6, IPPROTO_ICMPV6, false)

DEFINE_FIELD_M(NX_REG0,        0,            NXM_DL_NONE,   0,            true)
#if FLOW_N_REGS >= 2
DEFINE_FIELD_M(NX_REG1,        0,            NXM_DL_NONE,   0,            true)
#endif
#if FLOW_N_REGS >= 3
DEFINE_FIELD_M(NX_REG2,        0,            NXM_DL_NONE,   0,            true)
#endif
#if FLOW_N_REGS >= 4
DEFINE_FIELD_M(NX_REG3,        0,            NXM_DL_NONE,   0,            true)
#endif
#if FLOW_N_REGS > 4
#error
#endif

#undef DEFINE_FIELD