/*
 * Copyright (c) 2018-2019 Cavium, Inc.
 * All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __ECORE_TCP_IP_H
#define __ECORE_TCP_IP_H

#define VLAN_VID_MASK   0x0fff /* VLAN Identifier */
#define ETH_P_8021Q     0x8100          /* 802.1Q VLAN Extended Header  */
#define ETH_P_8021AD    0x88A8          /* 802.1ad Service VLAN         */
#define ETH_P_IPV6      0x86DD          /* IPv6 over bluebook           */
#define ETH_P_IP        0x0800          /* Internet Protocol packet     */
#define ETH_HLEN        14              /* Total octets in header.       */
#define VLAN_HLEN       4               /* additional bytes required by VLAN */
#define MAX_VLAN_PRIO   7       /* Max vlan priority value in 801.1Q tag */

#define MAX_DSCP                63 /* Max DSCP value in IP header */
#define IPPROTO_TCP     6

#ifndef htonl
#define htonl(val) OSAL_CPU_TO_BE32(val)
#endif

#ifndef ntohl
#define ntohl(val) OSAL_BE32_TO_CPU(val)
#endif

#ifndef htons
#define htons(val) OSAL_CPU_TO_BE16(val)
#endif

#ifndef ntohs
#define ntohs(val) OSAL_BE16_TO_CPU(val)
#endif

struct ecore_ethhdr {
        unsigned char   h_dest[ETH_ALEN];       /* destination eth addr */
        unsigned char   h_source[ETH_ALEN];     /* source ether addr    */
        u16             h_proto;                /* packet type ID field */
};

struct ecore_iphdr {
        u8      ihl:4,
                version:4;
        u8      tos;
        u16     tot_len;
        u16     id;
        u16     frag_off;
        u8      ttl;
        u8      protocol;
        u16     check;
        u32     saddr;
        u32     daddr;
        /*The options start here. */
};

struct ecore_vlan_ethhdr {
        unsigned char   h_dest[ETH_ALEN];
        unsigned char   h_source[ETH_ALEN];
        u16             h_vlan_proto;
        u16             h_vlan_TCI;
        u16             h_vlan_encapsulated_proto;
};

struct ecore_in6_addr {
        union {
                u8              u6_addr8[16];
                u16             u6_addr16[8];
                u32             u6_addr32[4];
        } in6_u;
};

struct ecore_ipv6hdr {
        u8                      priority:4,
                                version:4;
        u8                      flow_lbl[3];

        u16                     payload_len;
        u8                      nexthdr;
        u8                      hop_limit;

        struct  ecore_in6_addr  saddr;
        struct  ecore_in6_addr  daddr;
};

struct ecore_tcphdr {
        u16     source;
        u16     dest;
        u32     seq;
        u32     ack_seq;
        u16     res1:4,
                doff:4,
                fin:1,
                syn:1,
                rst:1,
                psh:1,
                ack:1,
                urg:1,
                ece:1,
                cwr:1;
        u16     window;
        u16     check;
        u16     urg_ptr;
};

enum {
        INET_ECN_NOT_ECT = 0,
        INET_ECN_ECT_1 = 1,
        INET_ECN_ECT_0 = 2,
        INET_ECN_CE = 3,
        INET_ECN_MASK = 3,
};

#endif