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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * The bios low-memory structure | |
3 | * | |
4 | * Some of the variables in here can be used to set parameters that | |
5 | * are stored in NVRAM and will retain their old values the next time | |
6 | * the card is brought up. To use the values stored in NVRAM, the | |
7 | * parameter should be set to "all ones". This tells the firmware to | |
8 | * use the NVRAM value or a suitable default. The value that is used | |
9 | * will be stored back into this structure by the firmware. If the | |
10 | * value of the variable is not "all ones", then that value will be | |
11 | * used and will be stored into NVRAM if it isn't already there. | |
12 | * The variables this applies to are the following: | |
13 | * Variable Set to: Gets default of: | |
14 | * bc_hashexpire -1 300 (5 minutes) | |
15 | * bc_spantree -1 1 (spanning tree on) | |
16 | * bc_ipaddr FF:FF:FF:FF 0 (no SNMP IP address) | |
17 | * bc_ipxnet FF:FF:FF:FF 0 (no SNMP IPX net) | |
18 | * bc_iptrap FF:FF:FF:FF 0 (no SNMP IP trap address) | |
19 | * | |
20 | * Some variables MUST have their value set after the firmware | |
21 | * is loaded onto the board, but before the processor is released. | |
22 | * These are: | |
23 | * bc_host 0 means no host "port", run as standalone switch. | |
24 | * 1 means run as a switch, with a host port. (normal) | |
25 | * 2 means run as multiple NICs, not as a switch. | |
26 | * -1 means run in diagnostics mode. | |
27 | * bc_nowait | |
28 | * bc_hostarea_len | |
29 | * bc_filter_len | |
6aa20a22 | 30 | * |
1da177e4 LT |
31 | */ |
32 | BEGIN_STRUCT(bios_comm) | |
33 | S4(ulong, bc_intflag) /* Count of all interrupts */ | |
34 | S4(ulong, bc_lbolt) /* Count of timer interrupts */ | |
35 | S4(ulong, bc_maincnt) /* Count of main loops */ | |
36 | S4(ulong, bc_hashcnt) /* Count of entries in hash table */ | |
37 | S4A(ulong, bc_cnt, 8) /* Misc counters, for debugging */ | |
38 | S4A(ulong, bc_flag, 8) /* Misc flags, for debugging */ | |
39 | S4(ulong, bc_memsize) /* Size of memory */ | |
40 | S4(ulong, bc_dcache) /* Size of working dcache */ | |
41 | S4(ulong, bc_icache) /* Size of working icache */ | |
42 | S4(long, bc_status) /* Firmware status */ | |
43 | S1A(char, bc_file, 8) /* File name of assertion failure */ | |
44 | S4(ulong, bc_line) /* Line # of assertion failure */ | |
45 | S4(uchar *, bc_ramstart) | |
46 | S4(uchar *, bc_ramend) | |
47 | S4(uchar *, bc_heapstart) /* Start of heap (end of loaded memory) */ | |
48 | S4(uchar *, bc_heapend) /* End of heap */ | |
49 | ||
50 | /* Configurable Parameters */ | |
51 | S4(long, bc_host) /* 1=Host Port, 0=No Host Port, -1=Test Mode */ | |
52 | S4(long, bc_nowait) /* Don't wait for 2host circ buffer to empty*/ | |
53 | S4(long, bc_150ohm) /* 0 == 100 ohm UTP, 1 == 150 ohm STP */ | |
54 | S4(long, bc_squelch) /* 0 == normal squelch, 1 == reduced squelch */ | |
55 | S4(ulong, bc_hashexpire) /* Expiry time in seconds for hash table */ | |
56 | S4(long, bc_spantree) /* 1 == enable IEEE spanning tree */ | |
57 | ||
58 | S2A(ushort, bc_eaddr, 3) /* New ether address */ | |
59 | S2(ushort, bc_dummy1) /* padding for DOS compilers */ | |
60 | ||
61 | /* Various debugging aids */ | |
62 | S4(long, bc_debug) /* Debugging is turned on */ | |
63 | S4(long, bc_spew) /* Spew data on port 4 for bs_spew seconds */ | |
64 | S4(long, bc_spewlen) /* Length of spewed data packets */ | |
65 | S4(long, bc_maxrfd) /* If != 0, max number of RFD's to allocate */ | |
66 | S4(long, bc_maxrbd) /* If != 0, max number of RBD's to allocate */ | |
67 | ||
68 | /* Circular buffers for messages to/from host */ | |
69 | S4(ulong, bc_2host_head) | |
70 | S4(ulong, bc_2host_tail) | |
71 | S4(ulong, bc_2host_mask) | |
72 | S1A(char, bc_2host, 0x200) /* Circ buff to host */ | |
73 | ||
74 | S4(ulong, bc_2idt_head) | |
75 | S4(ulong, bc_2idt_tail) | |
76 | S4(ulong, bc_2idt_mask) | |
77 | S1A(char, bc_2idt, 0x200) /* Circ buff to idt */ | |
78 | ||
79 | /* Pointers to structures for driver access */ | |
80 | S4(uchar *, bc_port) /* pointer to Port[] structures */ | |
81 | S4(long, bc_nports) /* Number of ports */ | |
82 | S4(long, bc_portlen) /* sizeof(PORT) */ | |
83 | S4(uchar *, bc_hash) /* Pointer to hash table */ | |
84 | S4(long, bc_hashlen) /* sizeof(Table) */ | |
85 | ||
86 | /* SNMP agent addresses */ | |
87 | S1A(uchar, bc_ipaddr, 4) /* IP address for SNMP */ | |
88 | S1A(uchar, bc_ipxnet, 4) /* IPX net address for SNMP */ | |
89 | ||
90 | S4(long, bc_nohostintr) /* Do not cause periodic host interrupts */ | |
91 | ||
92 | S4(uchar *, bc_dmaaddr) /* Physical addr of host DMA buf for diags */ | |
93 | S4(ulong, bc_dmalen) /* Length of DMA buffer 0..2048 */ | |
94 | ||
95 | /* | |
96 | * Board memory allocated on startup for use by host, usually | |
97 | * for the purposes of creating DMA chain descriptors. The | |
98 | * "len" must be set before the processor is released. The | |
99 | * address of the area is returned in bc_hostarea. The area | |
100 | * is guaranteed to be aligned on a 16 byte boundary. | |
101 | */ | |
102 | S4(ulong, bc_hostarea_len) /* RW: Number of bytes to allocate */ | |
103 | S4(uchar *, bc_hostarea) /* RO: Address of allocated memory */ | |
104 | ||
105 | /* | |
106 | * Variables for communicating filters into the board | |
107 | */ | |
108 | S4(ulong *, bc_filter_area) /* RO: Space to put filter into */ | |
109 | S4(ulong, bc_filter_area_len) /* RO: Length of area, in bytes */ | |
110 | S4(long, bc_filter_cmd) /* RW: Filter command, see below */ | |
111 | S4(ulong, bc_filter_len) /* RW: Actual length of filter */ | |
112 | S4(ulong, bc_filter_port) /* RW: Port # for filter 0..6 */ | |
113 | S4(ulong, bc_filter_num) /* RW: Filter #, 0=input, 1=output */ | |
114 | ||
115 | /* more SNMP agent addresses */ | |
116 | S1A(uchar, bc_iptrap, 4) /* IP address for SNMP */ | |
117 | ||
118 | S4A(long, bc_spare, 2) /* spares */ | |
119 | END_STRUCT(bios_comm) | |
120 | ||
121 | #define bc VMO(struct bios_comm, 0xa3000100) | |
122 | ||
123 | /* | |
124 | * bc_status values | |
125 | */ | |
126 | #define BC_INIT 0 | |
127 | #define BC_RUN 100 | |
128 | ||
129 | /* | |
130 | * bc_host values | |
131 | */ | |
132 | #define BC_DIAGS -1 | |
133 | #define BC_SASWITCH 0 | |
134 | #define BC_SWITCH 1 | |
135 | #define BC_MULTINIC 2 | |
136 | ||
137 | /* | |
138 | * Values for spew (debugging) | |
139 | */ | |
140 | #define BC_SPEW_ENABLE 0x80000000 | |
141 | ||
142 | /* | |
143 | * filter commands | |
144 | */ | |
145 | #define BC_FILTER_ERR -1 | |
146 | #define BC_FILTER_OK 0 | |
147 | #define BC_FILTER_SET 1 | |
148 | #define BC_FILTER_CLR 2 |