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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/*
* Copyright(c) 2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* Maintained at www.Open-FCoE.org
*/
#ifndef FIP_H
#define FIP_H
#include <stdint.h>
#include <net/ethernet.h>
#define ETH_P_FCOE 0x8906
#define ETH_P_FIP 0x8914
#define VLAN_HLEN 4
#define FIP_ALL_FCOE_MACS { 0x01, 0x10, 0x18, 0x01, 0x00, 0x00 }
#define FIP_ALL_ENODE_MACS { 0x01, 0x10, 0x18, 0x01, 0x00, 0x01 }
#define FIP_ALL_FCF_MACS { 0x01, 0x10, 0x18, 0x01, 0x00, 0x02 }
#define FIP_ALL_VN2VN_MACS { 0x01, 0x10, 0x18, 0x01, 0x00, 0x04 }
/* The following values are chosen to match the last byte of
* the corresponding FIP multicast MAC address.
*/
enum fip_multi {
FIP_NONE = -1,
FIP_ALL_FCOE = 0,
FIP_ALL_ENODE = 1,
FIP_ALL_FCF = 2,
FIP_ALL_VN2VN = 4,
};
struct fiphdr {
uint8_t fip_version; /* version, upper 4 bits only */
uint8_t __resvd_0;
uint16_t fip_proto; /* protocol code */
uint8_t __resvd_1;
uint8_t fip_subcode; /* subcode */
uint16_t fip_desc_len; /* descriptor list length */
uint16_t fip_flags;
};
#define FIP_VERSION(n) (n << 4)
#define FIP_F_FP (1 << 15) /* FPMA supported/requested/granted */
#define FIP_F_SP (1 << 14) /* SPMA supported/requested/granted */
#define FIP_F_A (1 << 2) /* Available for Login */
#define FIP_F_S (1 << 1) /* Solicited advertisement */
#define FIP_F_F (1 << 0) /* FCF */
/* FCF Discovery Protocol */
#define FIP_PROTO_DISC 1
#define FIP_DISC_SOL 1
#define FIP_DISC_ADV 2
/* Virtual Link Instantiation (encapsulated ELS) */
#define FIP_PROTO_VLI 2
#define FIP_VLI_REQ 1
#define FIP_VLI_REPLY 2
/* FIP Keep Alive */
#define FIP_PROTO_FKA 3
#define FIP_FKA 1
#define FIP_FKA_CLEAR 2
/* VLAN Discovery */
#define FIP_PROTO_VLAN 4
#define FIP_VLAN_REQ 1
#define FIP_VLAN_NOTE 2
#define FIP_VLAN_NOTE_VN2VN 3
struct fip_tlv_hdr {
uint8_t tlv_type;
uint8_t tlv_len; /* length in quad-words of entire TLV */
};
#define FIP_TLV_PRIORITY 1
#define FIP_TLV_MAC_ADDR 2
#define FIP_TLV_FC_MAP 3
#define FIP_TLV_NAME_IDENTIFIER 4
#define FIP_TLV_FABRIC_NAME 5
#define FIP_TLV_MAX_RECV_SIZE 6
#define FIP_TLV_FLOGI 7
#define FIP_TLV_FDISC 8
#define FIP_TLV_LOGO 9
#define FIP_TLV_ELP 10
#define FIP_TLV_VLAN 14
#define DEFAULT_FIP_PRIORITY 128
/* Priority Descriptor */
struct fip_tlv_priority {
struct fip_tlv_hdr hdr;
unsigned char __resvd;
uint8_t priority;
};
/* MAC Address Descriptor */
struct fip_tlv_mac_addr {
struct fip_tlv_hdr hdr;
unsigned char mac_addr[ETHER_ADDR_LEN];
};
/* FC-MAP Descriptor */
struct fip_tlv_fc_map {
struct fip_tlv_hdr hdr;
unsigned char __resvd[3];
uint8_t map[3];
};
/* Name Identifier Descriptor (also used for Fabric Name Descriptor) */
struct fip_tlv_name_id {
struct fip_tlv_hdr hdr;
unsigned char __resvd[2];
unsigned char wwn[8];
};
/* Max Receive Size Descriptor */
struct fip_tlv_max_recv_size {
struct fip_tlv_hdr hdr;
uint16_t mtu;
};
/* VLAN */
struct fip_tlv_vlan {
struct fip_tlv_hdr hdr;
uint16_t vlan; /* only lower 12 bits matter */
};
/* libutil / fip.c functionality */
int fip_socket(int ifindex, enum fip_multi multi);
/* FIP message handler, passed into fip_recv */
typedef int fip_handler(struct fiphdr *fh, struct sockaddr_ll *sa, void *arg);
/**
* fip_recv - receive from a FIP packet socket
* @s: packet socket with data ready to be received
*/
int fip_recv(int s, fip_handler *fn, void *arg);
/**
* fip_send_vlan_request - send a FIP VLAN request
* @s: ETH_P_FIP packet socket to send on
* @ifindex: network interface index to send on
* @mac: mac address of the netif
* @dest: destination selector
*
* Note: sends to destination selected by @dest
*/
ssize_t fip_send_vlan_request(int s, int ifindex, const unsigned char *mac,
enum fip_multi);
/**
* fip_send_vlan_notification - send a FIP VLAN notification
* @s: ETH_P_FIP packet socket to send on
* @ifindex: network interface to send on
* @mac: mac address of the netif
* @dest: destination mac address
* @vtlvs: pointer to vlan tlvs to send
* @vlan_count: Number of vlan tlvs to send
*/
int
fip_send_vlan_notification(int s, int ifindex, const __u8 *mac,
const __u8 *dest, struct fip_tlv_vlan *,
int vlan_count);
#endif /* FIP_H */
|
