patch-1.3.92 linux/drivers/net/dgrs_bcomm.h

• Lines: 135
• Date: Sat Apr 20 11:22:02 1996
• Orig file: v1.3.91/linux/drivers/net/dgrs_bcomm.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.91/linux/drivers/net/dgrs_bcomm.h linux/drivers/net/dgrs_bcomm.h
@@ -0,0 +1,134 @@
+/*
+ * 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 IP address)
+ *	bc_ipxnet	FF:FF:FF:FF	0	(no IPX net)
+ *
+ * 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 there is a host "port" (normal).
+ *	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 */
+
+	S4A(long, bc_spare, 3) /* spares */
+END_STRUCT(bios_comm)
+
+#define	bc	VMO(struct bios_comm, 0xa3000100)
+
+/*
+ *	bc_status values
+ */
+#define	BC_INIT	0
+#define	BC_RUN	100
+
+/*
+ *	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