diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/ieee1394/eth1394.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/ieee1394/eth1394.h')
-rw-r--r-- | drivers/ieee1394/eth1394.h | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/drivers/ieee1394/eth1394.h b/drivers/ieee1394/eth1394.h new file mode 100644 index 000000000000..ed8f1c4b7fd8 --- /dev/null +++ b/drivers/ieee1394/eth1394.h | |||
@@ -0,0 +1,236 @@ | |||
1 | /* | ||
2 | * eth1394.h -- Ethernet driver for Linux IEEE-1394 Subsystem | ||
3 | * | ||
4 | * Copyright (C) 2000 Bonin Franck <boninf@free.fr> | ||
5 | * (C) 2001 Ben Collins <bcollins@debian.org> | ||
6 | * | ||
7 | * Mainly based on work by Emanuel Pirker and Andreas E. Bombe | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License as published by | ||
11 | * the Free Software Foundation; either version 2 of the License, or | ||
12 | * (at your option) any later version. | ||
13 | * | ||
14 | * This program is distributed in the hope that it will be useful, | ||
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 | * GNU General Public License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License | ||
20 | * along with this program; if not, write to the Free Software Foundation, | ||
21 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
22 | */ | ||
23 | |||
24 | #ifndef __ETH1394_H | ||
25 | #define __ETH1394_H | ||
26 | |||
27 | #include <linux/netdevice.h> | ||
28 | |||
29 | #include "ieee1394.h" | ||
30 | |||
31 | /* Register for incoming packets. This is 4096 bytes, which supports up to | ||
32 | * S3200 (per Table 16-3 of IEEE 1394b-2002). */ | ||
33 | #define ETHER1394_REGION_ADDR_LEN 4096 | ||
34 | |||
35 | #define ETHER1394_INVALID_ADDR ~0ULL | ||
36 | |||
37 | /* GASP identifier numbers for IPv4 over IEEE 1394 */ | ||
38 | #define ETHER1394_GASP_SPECIFIER_ID 0x00005E | ||
39 | #define ETHER1394_GASP_SPECIFIER_ID_HI ((ETHER1394_GASP_SPECIFIER_ID >> 8) & 0xffff) | ||
40 | #define ETHER1394_GASP_SPECIFIER_ID_LO (ETHER1394_GASP_SPECIFIER_ID & 0xff) | ||
41 | #define ETHER1394_GASP_VERSION 1 | ||
42 | |||
43 | #define ETHER1394_GASP_OVERHEAD (2 * sizeof(quadlet_t)) /* GASP header overhead */ | ||
44 | |||
45 | #define ETHER1394_GASP_BUFFERS 16 | ||
46 | |||
47 | /* Node set == 64 */ | ||
48 | #define NODE_SET (ALL_NODES + 1) | ||
49 | |||
50 | enum eth1394_bc_states { ETHER1394_BC_ERROR, | ||
51 | ETHER1394_BC_RUNNING, | ||
52 | ETHER1394_BC_STOPPED }; | ||
53 | |||
54 | |||
55 | /* Private structure for our ethernet driver */ | ||
56 | struct eth1394_priv { | ||
57 | struct net_device_stats stats; /* Device stats */ | ||
58 | struct hpsb_host *host; /* The card for this dev */ | ||
59 | u16 bc_maxpayload; /* Max broadcast payload */ | ||
60 | u8 bc_sspd; /* Max broadcast speed */ | ||
61 | u64 local_fifo; /* Local FIFO Address */ | ||
62 | spinlock_t lock; /* Private lock */ | ||
63 | int broadcast_channel; /* Async stream Broadcast Channel */ | ||
64 | enum eth1394_bc_states bc_state; /* broadcast channel state */ | ||
65 | struct hpsb_iso *iso; /* Async stream recv handle */ | ||
66 | int bc_dgl; /* Outgoing broadcast datagram label */ | ||
67 | struct list_head ip_node_list; /* List of IP capable nodes */ | ||
68 | struct unit_directory *ud_list[ALL_NODES]; /* Cached unit dir list */ | ||
69 | }; | ||
70 | |||
71 | |||
72 | /* Define a fake hardware header format for the networking core. Note that | ||
73 | * header size cannot exceed 16 bytes as that is the size of the header cache. | ||
74 | * Also, we do not need the source address in the header so we omit it and | ||
75 | * keep the header to under 16 bytes */ | ||
76 | #define ETH1394_ALEN (8) | ||
77 | #define ETH1394_HLEN (10) | ||
78 | |||
79 | struct eth1394hdr { | ||
80 | unsigned char h_dest[ETH1394_ALEN]; /* destination eth1394 addr */ | ||
81 | unsigned short h_proto; /* packet type ID field */ | ||
82 | } __attribute__((packed)); | ||
83 | |||
84 | #ifdef __KERNEL__ | ||
85 | #include <linux/skbuff.h> | ||
86 | |||
87 | static inline struct eth1394hdr *eth1394_hdr(const struct sk_buff *skb) | ||
88 | { | ||
89 | return (struct eth1394hdr *)skb->mac.raw; | ||
90 | } | ||
91 | #endif | ||
92 | |||
93 | typedef enum {ETH1394_GASP, ETH1394_WRREQ} eth1394_tx_type; | ||
94 | |||
95 | /* IP1394 headers */ | ||
96 | #include <asm/byteorder.h> | ||
97 | |||
98 | /* Unfragmented */ | ||
99 | #if defined __BIG_ENDIAN_BITFIELD | ||
100 | struct eth1394_uf_hdr { | ||
101 | u16 lf:2; | ||
102 | u16 res:14; | ||
103 | u16 ether_type; /* Ethernet packet type */ | ||
104 | } __attribute__((packed)); | ||
105 | #elif defined __LITTLE_ENDIAN_BITFIELD | ||
106 | struct eth1394_uf_hdr { | ||
107 | u16 res:14; | ||
108 | u16 lf:2; | ||
109 | u16 ether_type; | ||
110 | } __attribute__((packed)); | ||
111 | #else | ||
112 | #error Unknown bit field type | ||
113 | #endif | ||
114 | |||
115 | /* First fragment */ | ||
116 | #if defined __BIG_ENDIAN_BITFIELD | ||
117 | struct eth1394_ff_hdr { | ||
118 | u16 lf:2; | ||
119 | u16 res1:2; | ||
120 | u16 dg_size:12; /* Datagram size */ | ||
121 | u16 ether_type; /* Ethernet packet type */ | ||
122 | u16 dgl; /* Datagram label */ | ||
123 | u16 res2; | ||
124 | } __attribute__((packed)); | ||
125 | #elif defined __LITTLE_ENDIAN_BITFIELD | ||
126 | struct eth1394_ff_hdr { | ||
127 | u16 dg_size:12; | ||
128 | u16 res1:2; | ||
129 | u16 lf:2; | ||
130 | u16 ether_type; | ||
131 | u16 dgl; | ||
132 | u16 res2; | ||
133 | } __attribute__((packed)); | ||
134 | #else | ||
135 | #error Unknown bit field type | ||
136 | #endif | ||
137 | |||
138 | /* XXX: Subsequent fragments, including last */ | ||
139 | #if defined __BIG_ENDIAN_BITFIELD | ||
140 | struct eth1394_sf_hdr { | ||
141 | u16 lf:2; | ||
142 | u16 res1:2; | ||
143 | u16 dg_size:12; /* Datagram size */ | ||
144 | u16 res2:4; | ||
145 | u16 fg_off:12; /* Fragment offset */ | ||
146 | u16 dgl; /* Datagram label */ | ||
147 | u16 res3; | ||
148 | } __attribute__((packed)); | ||
149 | #elif defined __LITTLE_ENDIAN_BITFIELD | ||
150 | struct eth1394_sf_hdr { | ||
151 | u16 dg_size:12; | ||
152 | u16 res1:2; | ||
153 | u16 lf:2; | ||
154 | u16 fg_off:12; | ||
155 | u16 res2:4; | ||
156 | u16 dgl; | ||
157 | u16 res3; | ||
158 | } __attribute__((packed)); | ||
159 | #else | ||
160 | #error Unknown bit field type | ||
161 | #endif | ||
162 | |||
163 | #if defined __BIG_ENDIAN_BITFIELD | ||
164 | struct eth1394_common_hdr { | ||
165 | u16 lf:2; | ||
166 | u16 pad1:14; | ||
167 | } __attribute__((packed)); | ||
168 | #elif defined __LITTLE_ENDIAN_BITFIELD | ||
169 | struct eth1394_common_hdr { | ||
170 | u16 pad1:14; | ||
171 | u16 lf:2; | ||
172 | } __attribute__((packed)); | ||
173 | #else | ||
174 | #error Unknown bit field type | ||
175 | #endif | ||
176 | |||
177 | struct eth1394_hdr_words { | ||
178 | u16 word1; | ||
179 | u16 word2; | ||
180 | u16 word3; | ||
181 | u16 word4; | ||
182 | }; | ||
183 | |||
184 | union eth1394_hdr { | ||
185 | struct eth1394_common_hdr common; | ||
186 | struct eth1394_uf_hdr uf; | ||
187 | struct eth1394_ff_hdr ff; | ||
188 | struct eth1394_sf_hdr sf; | ||
189 | struct eth1394_hdr_words words; | ||
190 | }; | ||
191 | |||
192 | /* End of IP1394 headers */ | ||
193 | |||
194 | /* Fragment types */ | ||
195 | #define ETH1394_HDR_LF_UF 0 /* unfragmented */ | ||
196 | #define ETH1394_HDR_LF_FF 1 /* first fragment */ | ||
197 | #define ETH1394_HDR_LF_LF 2 /* last fragment */ | ||
198 | #define ETH1394_HDR_LF_IF 3 /* interior fragment */ | ||
199 | |||
200 | #define IP1394_HW_ADDR_LEN 16 /* As per RFC */ | ||
201 | |||
202 | /* Our arp packet (ARPHRD_IEEE1394) */ | ||
203 | struct eth1394_arp { | ||
204 | u16 hw_type; /* 0x0018 */ | ||
205 | u16 proto_type; /* 0x0806 */ | ||
206 | u8 hw_addr_len; /* 16 */ | ||
207 | u8 ip_addr_len; /* 4 */ | ||
208 | u16 opcode; /* ARP Opcode */ | ||
209 | /* Above is exactly the same format as struct arphdr */ | ||
210 | |||
211 | u64 s_uniq_id; /* Sender's 64bit EUI */ | ||
212 | u8 max_rec; /* Sender's max packet size */ | ||
213 | u8 sspd; /* Sender's max speed */ | ||
214 | u16 fifo_hi; /* hi 16bits of sender's FIFO addr */ | ||
215 | u32 fifo_lo; /* lo 32bits of sender's FIFO addr */ | ||
216 | u32 sip; /* Sender's IP Address */ | ||
217 | u32 tip; /* IP Address of requested hw addr */ | ||
218 | }; | ||
219 | |||
220 | /* Network timeout */ | ||
221 | #define ETHER1394_TIMEOUT 100000 | ||
222 | |||
223 | /* This is our task struct. It's used for the packet complete callback. */ | ||
224 | struct packet_task { | ||
225 | struct sk_buff *skb; | ||
226 | int outstanding_pkts; | ||
227 | eth1394_tx_type tx_type; | ||
228 | int max_payload; | ||
229 | struct hpsb_packet *packet; | ||
230 | struct eth1394_priv *priv; | ||
231 | union eth1394_hdr hdr; | ||
232 | u64 addr; | ||
233 | u16 dest_node; | ||
234 | }; | ||
235 | |||
236 | #endif /* __ETH1394_H */ | ||