File: /usr/src/linux/drivers/i2o/i2o_lan.h
1 /*
2 * i2o_lan.h I2O LAN Class definitions
3 *
4 * I2O LAN CLASS OSM May 26th 2000
5 *
6 * (C) Copyright 1999, 2000 University of Helsinki,
7 * Department of Computer Science
8 *
9 * This code is still under development / test.
10 *
11 * Author: Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
12 * Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI>
13 * Taneli Vähäkangas <Taneli.Vahakangas@cs.Helsinki.FI>
14 */
15
16 #ifndef _I2O_LAN_H
17 #define _I2O_LAN_H
18
19 /* Default values for tunable parameters first */
20
21 #define I2O_LAN_MAX_BUCKETS_OUT 96
22 #define I2O_LAN_BUCKET_THRESH 18 /* 9 buckets in one message */
23 #define I2O_LAN_RX_COPYBREAK 200
24 #define I2O_LAN_TX_TIMEOUT (1*HZ)
25 #define I2O_LAN_TX_BATCH_MODE 2 /* 2=automatic, 1=on, 0=off */
26 #define I2O_LAN_EVENT_MASK 0 /* 0=None, 0xFFC00002=All */
27
28 /* LAN types */
29 #define I2O_LAN_ETHERNET 0x0030
30 #define I2O_LAN_100VG 0x0040
31 #define I2O_LAN_TR 0x0050
32 #define I2O_LAN_FDDI 0x0060
33 #define I2O_LAN_FIBRE_CHANNEL 0x0070
34 #define I2O_LAN_UNKNOWN 0x00000000
35
36 /* Connector types */
37
38 /* Ethernet */
39 #define I2O_LAN_AUI (I2O_LAN_ETHERNET << 4) + 0x00000001
40 #define I2O_LAN_10BASE5 (I2O_LAN_ETHERNET << 4) + 0x00000002
41 #define I2O_LAN_FIORL (I2O_LAN_ETHERNET << 4) + 0x00000003
42 #define I2O_LAN_10BASE2 (I2O_LAN_ETHERNET << 4) + 0x00000004
43 #define I2O_LAN_10BROAD36 (I2O_LAN_ETHERNET << 4) + 0x00000005
44 #define I2O_LAN_10BASE_T (I2O_LAN_ETHERNET << 4) + 0x00000006
45 #define I2O_LAN_10BASE_FP (I2O_LAN_ETHERNET << 4) + 0x00000007
46 #define I2O_LAN_10BASE_FB (I2O_LAN_ETHERNET << 4) + 0x00000008
47 #define I2O_LAN_10BASE_FL (I2O_LAN_ETHERNET << 4) + 0x00000009
48 #define I2O_LAN_100BASE_TX (I2O_LAN_ETHERNET << 4) + 0x0000000A
49 #define I2O_LAN_100BASE_FX (I2O_LAN_ETHERNET << 4) + 0x0000000B
50 #define I2O_LAN_100BASE_T4 (I2O_LAN_ETHERNET << 4) + 0x0000000C
51 #define I2O_LAN_1000BASE_SX (I2O_LAN_ETHERNET << 4) + 0x0000000D
52 #define I2O_LAN_1000BASE_LX (I2O_LAN_ETHERNET << 4) + 0x0000000E
53 #define I2O_LAN_1000BASE_CX (I2O_LAN_ETHERNET << 4) + 0x0000000F
54 #define I2O_LAN_1000BASE_T (I2O_LAN_ETHERNET << 4) + 0x00000010
55
56 /* AnyLAN */
57 #define I2O_LAN_100VG_ETHERNET (I2O_LAN_100VG << 4) + 0x00000001
58 #define I2O_LAN_100VG_TR (I2O_LAN_100VG << 4) + 0x00000002
59
60 /* Token Ring */
61 #define I2O_LAN_4MBIT (I2O_LAN_TR << 4) + 0x00000001
62 #define I2O_LAN_16MBIT (I2O_LAN_TR << 4) + 0x00000002
63
64 /* FDDI */
65 #define I2O_LAN_125MBAUD (I2O_LAN_FDDI << 4) + 0x00000001
66
67 /* Fibre Channel */
68 #define I2O_LAN_POINT_POINT (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000001
69 #define I2O_LAN_ARB_LOOP (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000002
70 #define I2O_LAN_PUBLIC_LOOP (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000003
71 #define I2O_LAN_FABRIC (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000004
72
73 #define I2O_LAN_EMULATION 0x00000F00
74 #define I2O_LAN_OTHER 0x00000F01
75 #define I2O_LAN_DEFAULT 0xFFFFFFFF
76
77 /* LAN class functions */
78
79 #define LAN_PACKET_SEND 0x3B
80 #define LAN_SDU_SEND 0x3D
81 #define LAN_RECEIVE_POST 0x3E
82 #define LAN_RESET 0x35
83 #define LAN_SUSPEND 0x37
84
85 /* LAN DetailedStatusCode defines */
86 #define I2O_LAN_DSC_SUCCESS 0x00
87 #define I2O_LAN_DSC_DEVICE_FAILURE 0x01
88 #define I2O_LAN_DSC_DESTINATION_NOT_FOUND 0x02
89 #define I2O_LAN_DSC_TRANSMIT_ERROR 0x03
90 #define I2O_LAN_DSC_TRANSMIT_ABORTED 0x04
91 #define I2O_LAN_DSC_RECEIVE_ERROR 0x05
92 #define I2O_LAN_DSC_RECEIVE_ABORTED 0x06
93 #define I2O_LAN_DSC_DMA_ERROR 0x07
94 #define I2O_LAN_DSC_BAD_PACKET_DETECTED 0x08
95 #define I2O_LAN_DSC_OUT_OF_MEMORY 0x09
96 #define I2O_LAN_DSC_BUCKET_OVERRUN 0x0A
97 #define I2O_LAN_DSC_IOP_INTERNAL_ERROR 0x0B
98 #define I2O_LAN_DSC_CANCELED 0x0C
99 #define I2O_LAN_DSC_INVALID_TRANSACTION_CONTEXT 0x0D
100 #define I2O_LAN_DSC_DEST_ADDRESS_DETECTED 0x0E
101 #define I2O_LAN_DSC_DEST_ADDRESS_OMITTED 0x0F
102 #define I2O_LAN_DSC_PARTIAL_PACKET_RETURNED 0x10
103 #define I2O_LAN_DSC_SUSPENDED 0x11
104
105 struct i2o_packet_info {
106 u32 offset : 24;
107 u32 flags : 8;
108 u32 len : 24;
109 u32 status : 8;
110 };
111
112 struct i2o_bucket_descriptor {
113 u32 context; /* FIXME: 64bit support */
114 struct i2o_packet_info packet_info[1];
115 };
116
117 /* Event Indicator Mask Flags for LAN OSM */
118
119 #define I2O_LAN_EVT_LINK_DOWN 0x01
120 #define I2O_LAN_EVT_LINK_UP 0x02
121 #define I2O_LAN_EVT_MEDIA_CHANGE 0x04
122
123 #include <linux/netdevice.h>
124 #include <linux/fddidevice.h>
125
126 struct i2o_lan_local {
127 u8 unit;
128 struct i2o_device *i2o_dev;
129
130 struct fddi_statistics stats; /* see also struct net_device_stats */
131 unsigned short (*type_trans)(struct sk_buff *, struct net_device *);
132 atomic_t buckets_out; /* nbr of unused buckets on DDM */
133 atomic_t tx_out; /* outstanding TXes */
134 u8 tx_count; /* packets in one TX message frame */
135 u16 tx_max_out; /* DDM's Tx queue len */
136 u8 sgl_max; /* max SGLs in one message frame */
137 u32 m; /* IOP address of the batch msg frame */
138
139 struct tq_struct i2o_batch_send_task;
140 int send_active;
141 struct sk_buff **i2o_fbl; /* Free bucket list (to reuse skbs) */
142 int i2o_fbl_tail;
143 spinlock_t fbl_lock;
144
145 spinlock_t tx_lock;
146
147 u32 max_size_mc_table; /* max number of multicast addresses */
148
149 /* LAN OSM configurable parameters are here: */
150
151 u16 max_buckets_out; /* max nbr of buckets to send to DDM */
152 u16 bucket_thresh; /* send more when this many used */
153 u16 rx_copybreak;
154
155 u8 tx_batch_mode; /* Set when using batch mode sends */
156 u32 i2o_event_mask; /* To turn on interesting event flags */
157 };
158
159 #endif /* _I2O_LAN_H */
160