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if_nireg.h revision 1.3
      1 /*	$NetBSD: if_nireg.h,v 1.3 2001/08/20 12:20:07 wiz Exp $	*/
      2 /*
      3  * Copyright (c) 1988 Regents of the University of California.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * Chris Torek.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	@(#)nireg.h	7.3 (Berkeley) 6/28/90
     38  */
     39 
     40 /*
     41  * Registers for the DEBNA and DEBNK Ethernet interfaces
     42  * (DEC calls these Network Interfaces, hence nireg.h)
     43  */
     44 
     45 /*
     46  * this seems to be intended to be more general, but I have no details,
     47  * so it goes here for now
     48  *
     49  * BI Vax Port (BVP) stuff first:
     50  */
     51 #ifdef notdef
     52 struct bvpregs {
     53 	u_long	p_pcr;		/* port control register */
     54 	u_long	p_psr;		/* port status register */
     55 	u_long	p_per;		/* port error register */
     56 	u_long	p_pdr;		/* port data register */
     57 };
     58 
     59 /*
     60  * BI node space registers
     61  */
     62 struct ni_regs {
     63 	struct	biiregs ni_bi;	/* BIIC registers, except GPRs */
     64 	struct	bvpregs ni_tkp; /* tk50 port control via BIIC GPRs */
     65 	u_long	ni_xxx[64];	/* unused */
     66 	u_long	ni_rxcd;	/* receive console data */
     67 	struct	bvpregs ni_nip; /* NI port control via BCI3 GPRs */
     68 	u_long	ni_pudr;	/* power-up diagnostic register */
     69 };
     70 #endif
     71 
     72 #define NI_PCR	0x204
     73 #define NI_PSR	0x208
     74 #define NI_PER	0x20c
     75 #define NI_PDR	0x210
     76 #define NI_PUDR 0x204
     77 
     78 /* bits in PCR */
     79 #define PCR_OWN		0x80
     80 #define PCR_MFREEQ	0x000
     81 #define PCR_DFREEQ	0x100
     82 #define PCR_RFREEQ	0x200
     83 #define PCR_IFREEQ	0x300
     84 #define	PCR_CMDQ0	PCR_MFREEQ
     85 #define	PCR_CMDQ1	PCR_DFREEQ
     86 #define	PCR_CMDQ2	PCR_RFREEQ
     87 #define	PCR_CMDQ3	PCR_IFREEQ
     88 #define	PCR_RESTART	11
     89 #define PCR_FREEQNE	7
     90 #define PCR_CMDQNE	6
     91 #define	PCR_SHUTDOWN	4
     92 #define PCR_ENABLE	2
     93 #define PCR_INIT	1
     94 
     95 /* bits in PSR */
     96 #define PSR_OWN		0x80000000
     97 #define PSR_STATE	0x00070000
     98 #define PSR_STOPPED	0x00060000
     99 #define PSR_ENABLED	0x00040000
    100 #define PSR_INITED	0x00020000
    101 #define PSR_UNDEF	0x00010000
    102 #define PSR_RSQ		0x00000080
    103 #define	PSR_ERR		0x00000040
    104 
    105 /*
    106  * The DEBNx uses a very weird (set of) structure(s) to communicate
    107  * with something as simple as an ethernet controller. This is not
    108  * very different to the way communication is done over CI with disks.
    109  */
    110 
    111 /* Message packet */
    112 struct ni_msg {
    113 	u_int32_t	nm_forw;
    114 	u_int32_t	nm_back;
    115 	u_int32_t	nm_pad1;
    116 	u_int8_t	nm_pad2;
    117 	u_int8_t	nm_status;
    118 	u_int8_t	nm_opcode;
    119 	u_int8_t	nm_pad3;
    120 	u_int16_t	nm_len;
    121 	u_int8_t	nm_opcode2;
    122 	u_int8_t	nm_status2;
    123 	u_int32_t	nm_pad4;
    124 	u_int8_t	nm_text[128];
    125 };
    126 
    127 /* Datagram packet */
    128 struct ni_dg {
    129 	u_int32_t	nd_forw;
    130 	u_int32_t	nd_back;
    131 	u_int32_t	nd_pad1;
    132 	u_int8_t	nd_pad2;
    133 	u_int8_t	nd_status;
    134 	u_int8_t	nd_opcode;
    135 	u_int8_t	nd_pad3;
    136 	u_int16_t	nd_len;
    137 	u_int16_t	nd_status2;
    138 	u_int32_t	nd_cmdref;
    139 	u_int32_t	nd_ptdbidx;
    140 	struct {
    141 		u_int16_t	_offset;
    142 		u_int16_t	_len;
    143 		u_int16_t	_index;
    144 		u_int16_t	_key;
    145 	} bufs[NTXFRAGS];
    146 };
    147 
    148 #define	NIDG_CHAIN	0x8000
    149 
    150 /* NI parameter block */
    151 struct ni_param {
    152 	u_int8_t	np_dpa[8];
    153 	u_int8_t	np_apa[8];
    154 	u_int8_t	np_lsa[8];
    155 	u_int8_t	np_bvc[8];
    156 	u_int16_t	np_curaddr;
    157 	u_int16_t	np_maxaddr;
    158 	u_int16_t	np_curptt;
    159 	u_int16_t	np_maxptt;
    160 	u_int16_t	np_curfq;
    161 	u_int16_t	np_maxfq;
    162 	u_int32_t	np_sid;
    163 	u_int32_t	np_mop;
    164 	u_int32_t	np_flags;
    165 	u_int32_t	np_rcto;
    166 	u_int32_t	np_xmto;
    167 };
    168 
    169 #define NP_ECT		0x01
    170 #define NP_PAD		0x02
    171 #define NP_BOO		0x04
    172 #define NP_CAR		0x08
    173 #define NP_ILP		0x10
    174 #define NP_ELP		0x20
    175 #define NP_DCRC		0x40
    176 #define NP_THRU		0x80
    177 
    178 /* Protocol type definition block */
    179 struct ni_ptdb {
    180 	u_int16_t	np_type;	/* Protocol type */
    181 	u_int8_t	np_fque;	/* Free queue */
    182 	u_int8_t	np_flags;	/* See below */
    183 	u_int32_t	np_index;	/* protocol type index */
    184 	u_int16_t	np_adrlen;	/* # of multicast addresses */
    185 	u_int16_t	np_802;		/* for IEEE 802 packets */
    186 	u_int8_t	np_mcast[16][8];/* Multicast (direct match) array */
    187 };
    188 
    189 #define	PTDB_PROMISC	0x08
    190 #define	PTDB_802	0x10
    191 #define	PTDB_BDC	0x20
    192 #define	PTDB_UNKN	0x40
    193 #define	PTDB_AMC	0x80
    194 
    195 /* Buffer descriptor */
    196 struct ni_bbd {
    197 	u_int16_t	nb_status;	/* Offset, valid etc */
    198 	u_int16_t	nb_key;
    199 	u_int32_t	nb_len;		/* Buffer length */
    200 	u_int32_t	nb_pte;		/* start (vax) PTE for this buffer */
    201 	u_int32_t	nb_pad;
    202 };
    203 #define NIBD_OFFSET	0x1ff
    204 #define NIBD_VALID	0x8000
    205 
    206 
    207 /* Free Queue Block */
    208 struct ni_fqb {
    209 	u_int32_t	nf_mlen;
    210 	u_int32_t	nf_mpad;
    211 	u_int32_t	nf_mforw;
    212 	u_int32_t	nf_mback;
    213 	u_int32_t	nf_dlen;
    214 	u_int32_t	nf_dpad;
    215 	u_int32_t	nf_dforw;
    216 	u_int32_t	nf_dback;
    217 	u_int32_t	nf_rlen;
    218 	u_int32_t	nf_rpad;
    219 	u_int32_t	nf_rforw;
    220 	u_int32_t	nf_rback;
    221 	u_int32_t	nf_ilen;
    222 	u_int32_t	nf_ipad;
    223 	u_int32_t	nf_iforw;
    224 	u_int32_t	nf_iback;
    225 };
    226 
    227 /* DEBNx specific part of Generic VAX Port */
    228 struct ni_pqb {
    229 	u_int16_t	np_veclvl;	/* Interrupt vector + level */
    230 	u_int16_t	np_node;	/* Where to interrupt */
    231 	u_int32_t	np_freeq;
    232 	u_int32_t	np_vfqb;	/* Free queue block pointer */
    233 	u_int32_t	np_pad1[39];
    234 	u_int32_t	np_bvplvl;
    235 	u_int32_t	np_vpqb;	/* Virtual address of Generic PQB */
    236 	u_int32_t	np_vbdt;	/* Virtual address of descriptors */
    237 	u_int32_t	np_nbdr;	/* Number of descriptors */
    238 	u_int32_t	np_spt;		/* System Page Table */
    239 	u_int32_t	np_sptlen;	/* System Page Table length */
    240 	u_int32_t	np_gpt;		/* Global Page Table */
    241 	u_int32_t	np_gptlen;	/* Global Page Table length */
    242 	u_int32_t	np_mask;
    243 	u_int32_t	np_pad2[67];
    244 };
    245 
    246 /* "Generic VAX Port Control Block" whatever it means */
    247 struct ni_gvppqb {
    248 	u_int32_t	nc_forw0;
    249 	u_int32_t	nc_back0;
    250 	u_int32_t	nc_forw1;
    251 	u_int32_t	nc_back1;
    252 	u_int32_t	nc_forw2;
    253 	u_int32_t	nc_back2;
    254 	u_int32_t	nc_forw3;
    255 	u_int32_t	nc_back3;
    256 	u_int32_t	nc_forwr;
    257 	u_int32_t	nc_backr;
    258 	struct ni_pqb	nc_pqb;		/* DEBNx specific part of struct */
    259 };
    260 
    261 
    262 /* BVP opcodes, should be somewhere else */
    263 #define BVP_DGRAM	1
    264 #define BVP_MSG		2
    265 #define BVP_DGRAMI	3
    266 #define BVP_DGRAMRX	33
    267 #define BVP_MSGRX	34
    268 #define BVP_DGRAMIRX	35
    269 
    270 /* NI-specific sub-opcodes */
    271 #define NI_WSYSID	1
    272 #define NI_RSYSID	2
    273 #define NI_WPARAM	3
    274 #define NI_RPARAM	4
    275 #define NI_RCCNTR	5
    276 #define NI_RDCNTR	6
    277 #define NI_STPTDB	7
    278 #define NI_CLPTDB	8
    279 
    280 /* bits in ni_pudr */
    281 #define PUDR_TAPE	0x40000000	/* tk50 & assoc logic ok */
    282 #define PUDR_PATCH	0x20000000	/* patch logic ok */
    283 #define PUDR_VRAM	0x10000000	/* DEBNx onboard RAM ok */
    284 #define PUDR_VROM1	0x08000000	/* uVax ROM 1 ok */ /* ? */
    285 #define PUDR_VROM2	0x04000000	/* uVax ROM 2 ok */
    286 #define PUDR_VROM3	0x02000000	/* uVax ROM 3 ok */
    287 #define PUDR_VROM4	0x01000000	/* uVax ROM 4 ok */
    288 #define PUDR_UVAX	0x00800000	/* uVax passes self test */
    289 #define PUDR_BI		0x00400000	/* BIIC and BCI3 chips ok */
    290 #define PUDR_TMR	0x00200000	/* interval timer ok */
    291 #define PUDR_IRQ	0x00100000	/* no IRQ lines stuck */
    292 #define PUDR_NI		0x00080000	/* Ethernet ctlr ok */
    293 #define PUDR_TK50	0x00040000	/* tk50 present */
    294 #define PUDR_PRES	0x00001000	/* tk50 present (again?!) */
    295 #define PUDR_UVINT	0x00000800	/* uVax-to-80186 intr logic ok */
    296 #define PUDR_BUSHD	0x00000400	/* no bus hold errors */
    297 #define PUDR_II32	0x00000200	/* II32 transceivers ok */
    298 #define PUDR_MPSC	0x00000100	/* MPSC logic ok */
    299 #define PUDR_GAP	0x00000080	/* gap-detect logic ok */
    300 #define PUDR_MISC	0x00000040	/* misc. registers ok */
    301 #define PUDR_UNEXP	0x00000020	/* unexpected interrupt trapped */
    302 #define PUDR_80186	0x00000010	/* 80186 ok */
    303 #define PUDR_PATCH2	0x00000008	/* patch logic ok (again) */
    304 #define PUDR_8RAM	0x00000004	/* 80186 RAM ok */
    305 #define PUDR_8ROM2	0x00000002	/* 80186 ROM1 ok */
    306 #define PUDR_8ROM1	0x00000001	/* 80186 ROM2 ok */
    307