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path: root/drivers/net/dgrs_bcomm.h
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-rw-r--r--drivers/net/dgrs_bcomm.h148
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/net/dgrs_bcomm.h b/drivers/net/dgrs_bcomm.h
new file mode 100644
index 00000000000..6646608811c
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+++ b/drivers/net/dgrs_bcomm.h
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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