1/*
2 * Copyright (c) 2018-2019 Cavium, Inc.
3 * All rights reserved.
4 *
5 *  Redistribution and use in source and binary forms, with or without
6 *  modification, are permitted provided that the following conditions
7 *  are met:
8 *
9 *  1. Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 *  2. Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 *
15 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 *  POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef __ECORE_TCP_IP_H
29#define __ECORE_TCP_IP_H
30
31#define VLAN_VID_MASK	0x0fff /* VLAN Identifier */
32#define ETH_P_8021Q	0x8100          /* 802.1Q VLAN Extended Header  */
33#define ETH_P_8021AD	0x88A8          /* 802.1ad Service VLAN		*/
34#define ETH_P_IPV6	0x86DD		/* IPv6 over bluebook		*/
35#define ETH_P_IP	0x0800		/* Internet Protocol packet	*/
36#define ETH_HLEN	14		/* Total octets in header.	 */
37#define VLAN_HLEN       4               /* additional bytes required by VLAN */
38#define MAX_VLAN_PRIO	7	/* Max vlan priority value in 801.1Q tag */
39
40#define MAX_DSCP		63 /* Max DSCP value in IP header */
41#define IPPROTO_TCP	6
42
43#ifndef htonl
44#define htonl(val) OSAL_CPU_TO_BE32(val)
45#endif
46
47#ifndef ntohl
48#define ntohl(val) OSAL_BE32_TO_CPU(val)
49#endif
50
51#ifndef htons
52#define htons(val) OSAL_CPU_TO_BE16(val)
53#endif
54
55#ifndef ntohs
56#define ntohs(val) OSAL_BE16_TO_CPU(val)
57#endif
58
59struct ecore_ethhdr {
60	unsigned char	h_dest[ETH_ALEN];	/* destination eth addr	*/
61	unsigned char	h_source[ETH_ALEN];	/* source ether addr	*/
62	u16		h_proto;		/* packet type ID field	*/
63};
64
65struct ecore_iphdr {
66	u8	ihl:4,
67		version:4;
68	u8	tos;
69	u16	tot_len;
70	u16	id;
71	u16	frag_off;
72	u8	ttl;
73	u8	protocol;
74	u16	check;
75	u32	saddr;
76	u32	daddr;
77	/*The options start here. */
78};
79
80struct ecore_vlan_ethhdr {
81	unsigned char	h_dest[ETH_ALEN];
82	unsigned char	h_source[ETH_ALEN];
83	u16		h_vlan_proto;
84	u16		h_vlan_TCI;
85	u16		h_vlan_encapsulated_proto;
86};
87
88struct ecore_in6_addr {
89	union {
90		u8		u6_addr8[16];
91		u16		u6_addr16[8];
92		u32		u6_addr32[4];
93	} in6_u;
94};
95
96struct ecore_ipv6hdr {
97	u8			priority:4,
98				version:4;
99	u8			flow_lbl[3];
100
101	u16			payload_len;
102	u8			nexthdr;
103	u8			hop_limit;
104
105	struct	ecore_in6_addr	saddr;
106	struct	ecore_in6_addr	daddr;
107};
108
109struct ecore_tcphdr {
110	u16	source;
111	u16	dest;
112	u32	seq;
113	u32	ack_seq;
114	u16	res1:4,
115		doff:4,
116		fin:1,
117		syn:1,
118		rst:1,
119		psh:1,
120		ack:1,
121		urg:1,
122		ece:1,
123		cwr:1;
124	u16	window;
125	u16	check;
126	u16	urg_ptr;
127};
128
129enum {
130	INET_ECN_NOT_ECT = 0,
131	INET_ECN_ECT_1 = 1,
132	INET_ECN_ECT_0 = 2,
133	INET_ECN_CE = 3,
134	INET_ECN_MASK = 3,
135};
136
137#endif
138