1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/* Copyright 2008-2012 Freescale Semiconductor, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``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 Freescale Semiconductor 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.
*/
/*
* DPA Offloading Driver General Data Types.
*/
#ifndef __FSL_DPA_OFFLOAD_H
#define __FSL_DPA_OFFLOAD_H
#include <linux/if_ether.h>
#include <linux/ip.h>
/* General definitions */
#define DPA_OFFLD_IPv4_ADDR_LEN_BYTES 4
#define DPA_OFFLD_IPv6_ADDR_LEN_BYTES 16
#define DPA_OFFLD_IPv6_ADDR_LEN_WORDS 4
#define DPA_OFFLD_IPv6_ADDR_LEN_LONG 2
/* Maximum size of a lookup key, in bytes */
#define DPA_OFFLD_MAXENTRYKEYSIZE 56
#define DPA_OFFLD_DESC_NONE -1
#define DPA_OFFLD_INVALID_OBJECT_ID -1
/* Description of lookup key */
struct dpa_offload_lookup_key {
/*
* The data (bytes) of the key. For indexed tables the index is the
* first byte of this array
*/
uint8_t *byte;
/*
* The mask of the key. The bits corresponding to zeros in the mask are
* ignored. NULL is the table doesn't have the mask support enabled.
*/
uint8_t *mask;
/*
* The size of the key in bytes. Must not exceed
* DPA_OFFLD_MAXENTRYKEYSIZE
*/
uint8_t size;
};
/* Description of the IPv4 address */
union dpa_offload_ipv4_address {
/* Address as 32bit word */
uint32_t word;
/* Address as byte array*/
uint8_t byte[DPA_OFFLD_IPv4_ADDR_LEN_BYTES];
};
/* Description of the IPv6 address */
union dpa_offload_ipv6_address {
/* Address as byte array*/
uint8_t byte[DPA_OFFLD_IPv6_ADDR_LEN_BYTES];
/* Address as word array */
uint32_t word[DPA_OFFLD_IPv6_ADDR_LEN_WORDS];
/* Address as long word */
uint64_t lword[DPA_OFFLD_IPv6_ADDR_LEN_LONG];
};
struct dpa_offload_ip_address {
/*
* IP version. Must be either 4 or 6. No other values are considered
* valid.
*/
unsigned int version;
union {
union dpa_offload_ipv4_address ipv4;
union dpa_offload_ipv6_address ipv6;
} addr;
};
/* Description of the well known PPPoE header */
struct pppoe_header {
uint8_t version:4; /* Protocol version */
uint8_t type:4; /* Type */
uint8_t code; /* Packet type code */
uint16_t sid; /* Session Id */
uint16_t length; /* Payload size */
};
/* Description of the MPLS header */
struct mpls_header {
uint32_t label:20; /* Label value */
uint32_t exp:3; /* Experimental */
uint32_t s:1; /* Bottom of stack */
uint32_t ttl:8; /* Time to live */
};
/* Description of the IPv6 header */
struct ipv6_header {
uint32_t version:4; /* Version */
uint32_t tc:8; /* Traffic Class */
uint32_t flow_label:20; /* Label */
uint16_t payload_len; /* Payload size */
uint8_t next_hdr; /* Next protocol */
uint8_t hop_limit; /* Hop Limit */
union dpa_offload_ipv6_address ipsa; /* Source address */
union dpa_offload_ipv6_address ipda; /* Destination addr */
};
struct ipv4_header {
/* IPv4 header */
struct iphdr header;
/* IPv4 options buffer. NULL for no options. */
uint8_t *options;
/* Size of IPv4 options buffer. Zero for no options. */
unsigned int options_size;
};
/* Description of the VLAN header */
struct vlan_header {
uint16_t tpid;
uint16_t tci;
};
#endif /* __FSL_DPA_OFFLOAD_H */
|