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[/] [or1k/] [tags/] [before_ORP/] [uclinux/] [uClinux-2.0.x/] [drivers/] [net/] [dgrs_bcomm.h] - Rev 1765
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/* * The bios low-memory structure * * Some of the variables in here can be used to set parameters that * are stored in NVRAM and will retain their old values the next time * the card is brought up. To use the values stored in NVRAM, the * parameter should be set to "all ones". This tells the firmware to * use the NVRAM value or a suitable default. The value that is used * will be stored back into this structure by the firmware. If the * value of the variable is not "all ones", then that value will be * used and will be stored into NVRAM if it isn't already there. * The variables this applies to are the following: * Variable Set to: Gets default of: * bc_hashexpire -1 300 (5 minutes) * bc_spantree -1 1 (spanning tree on) * bc_ipaddr FF:FF:FF:FF 0 (no SNMP IP address) * bc_ipxnet FF:FF:FF:FF 0 (no SNMP IPX net) * bc_iptrap FF:FF:FF:FF 0 (no SNMP IP trap address) * * Some variables MUST have their value set after the firmware * is loaded onto the board, but before the processor is released. * These are: * bc_host 0 means no host "port", run as standalone switch. * 1 means run as a switch, with a host port. (normal) * 2 means run as multiple NICs, not as a switch. * -1 means run in diagnostics mode. * bc_nowait * bc_hostarea_len * bc_filter_len * */ BEGIN_STRUCT(bios_comm) S4(ulong, bc_intflag) /* Count of all interrupts */ S4(ulong, bc_lbolt) /* Count of timer interrupts */ S4(ulong, bc_maincnt) /* Count of main loops */ S4(ulong, bc_hashcnt) /* Count of entries in hash table */ S4A(ulong, bc_cnt, 8) /* Misc counters, for debugging */ S4A(ulong, bc_flag, 8) /* Misc flags, for debugging */ S4(ulong, bc_memsize) /* Size of memory */ S4(ulong, bc_dcache) /* Size of working dcache */ S4(ulong, bc_icache) /* Size of working icache */ S4(long, bc_status) /* Firmware status */ S1A(char, bc_file, 8) /* File name of assertion failure */ S4(ulong, bc_line) /* Line # of assertion failure */ S4(uchar *, bc_ramstart) S4(uchar *, bc_ramend) S4(uchar *, bc_heapstart) /* Start of heap (end of loaded memory) */ S4(uchar *, bc_heapend) /* End of heap */ /* Configurable Parameters */ S4(long, bc_host) /* 1=Host Port, 0=No Host Port, -1=Test Mode */ S4(long, bc_nowait) /* Don't wait for 2host circ buffer to empty*/ S4(long, bc_150ohm) /* 0 == 100 ohm UTP, 1 == 150 ohm STP */ S4(long, bc_squelch) /* 0 == normal squelch, 1 == reduced squelch */ S4(ulong, bc_hashexpire) /* Expiry time in seconds for hash table */ S4(long, bc_spantree) /* 1 == enable IEEE spanning tree */ S2A(ushort, bc_eaddr, 3) /* New ether address */ S2(ushort, bc_dummy1) /* padding for DOS compilers */ /* Various debugging aids */ S4(long, bc_debug) /* Debugging is turned on */ S4(long, bc_spew) /* Spew data on port 4 for bs_spew seconds */ S4(long, bc_spewlen) /* Length of spewed data packets */ S4(long, bc_maxrfd) /* If != 0, max number of RFD's to allocate */ S4(long, bc_maxrbd) /* If != 0, max number of RBD's to allocate */ /* Circular buffers for messages to/from host */ S4(ulong, bc_2host_head) S4(ulong, bc_2host_tail) S4(ulong, bc_2host_mask) S1A(char, bc_2host, 0x200) /* Circ buff to host */ S4(ulong, bc_2idt_head) S4(ulong, bc_2idt_tail) S4(ulong, bc_2idt_mask) S1A(char, bc_2idt, 0x200) /* Circ buff to idt */ /* Pointers to structures for driver access */ S4(uchar *, bc_port) /* pointer to Port[] structures */ S4(long, bc_nports) /* Number of ports */ S4(long, bc_portlen) /* sizeof(PORT) */ S4(uchar *, bc_hash) /* Pointer to hash table */ S4(long, bc_hashlen) /* sizeof(Table) */ /* SNMP agent addresses */ S1A(uchar, bc_ipaddr, 4) /* IP address for SNMP */ S1A(uchar, bc_ipxnet, 4) /* IPX net address for SNMP */ S4(long, bc_nohostintr) /* Do not cause periodic host interrupts */ S4(uchar *, bc_dmaaddr) /* Physical addr of host DMA buf for diags */ S4(ulong, bc_dmalen) /* Length of DMA buffer 0..2048 */ /* * Board memory allocated on startup for use by host, usually * for the purposes of creating DMA chain descriptors. The * "len" must be set before the processor is released. The * address of the area is returned in bc_hostarea. The area * is guaranteed to be aligned on a 16 byte boundary. */ S4(ulong, bc_hostarea_len) /* RW: Number of bytes to allocate */ S4(uchar *, bc_hostarea) /* RO: Address of allocated memory */ /* * Variables for communicating filters into the board */ S4(ulong *, bc_filter_area) /* RO: Space to put filter into */ S4(ulong, bc_filter_area_len) /* RO: Length of area, in bytes */ S4(long, bc_filter_cmd) /* RW: Filter command, see below */ S4(ulong, bc_filter_len) /* RW: Actual length of filter */ S4(ulong, bc_filter_port) /* RW: Port # for filter 0..6 */ S4(ulong, bc_filter_num) /* RW: Filter #, 0=input, 1=output */ /* more SNMP agent addresses */ S1A(uchar, bc_iptrap, 4) /* IP address for SNMP */ S4A(long, bc_spare, 2) /* spares */ END_STRUCT(bios_comm) #define bc VMO(struct bios_comm, 0xa3000100) /* * bc_status values */ #define BC_INIT 0 #define BC_RUN 100 /* * bc_host values */ #define BC_DIAGS -1 #define BC_SASWITCH 0 #define BC_SWITCH 1 #define BC_MULTINIC 2 /* * Values for spew (debugging) */ #define BC_SPEW_ENABLE 0x80000000 /* * filter commands */ #define BC_FILTER_ERR -1 #define BC_FILTER_OK 0 #define BC_FILTER_SET 1 #define BC_FILTER_CLR 2