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      1 /*	$NetBSD: if_nireg.h,v 1.6 2005/12/11 12:21:15 christos 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. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	@(#)nireg.h	7.3 (Berkeley) 6/28/90
     34  */
     35 
     36 /*
     37  * Registers for the DEBNA and DEBNK Ethernet interfaces
     38  * (DEC calls these Network Interfaces, hence nireg.h)
     39  */
     40 
     41 /*
     42  * this seems to be intended to be more general, but I have no details,
     43  * so it goes here for now
     44  *
     45  * BI Vax Port (BVP) stuff first:
     46  */
     47 #ifdef notdef
     48 struct bvpregs {
     49 	u_long	p_pcr;		/* port control register */
     50 	u_long	p_psr;		/* port status register */
     51 	u_long	p_per;		/* port error register */
     52 	u_long	p_pdr;		/* port data register */
     53 };
     54 
     55 /*
     56  * BI node space registers
     57  */
     58 struct ni_regs {
     59 	struct	biiregs ni_bi;	/* BIIC registers, except GPRs */
     60 	struct	bvpregs ni_tkp; /* tk50 port control via BIIC GPRs */
     61 	u_long	ni_xxx[64];	/* unused */
     62 	u_long	ni_rxcd;	/* receive console data */
     63 	struct	bvpregs ni_nip; /* NI port control via BCI3 GPRs */
     64 	u_long	ni_pudr;	/* power-up diagnostic register */
     65 };
     66 #endif
     67 
     68 #define NI_PCR	0x204
     69 #define NI_PSR	0x208
     70 #define NI_PER	0x20c
     71 #define NI_PDR	0x210
     72 #define NI_PUDR 0x204
     73 
     74 /* bits in PCR */
     75 #define PCR_OWN		0x80
     76 #define PCR_MFREEQ	0x000
     77 #define PCR_DFREEQ	0x100
     78 #define PCR_RFREEQ	0x200
     79 #define PCR_IFREEQ	0x300
     80 #define	PCR_CMDQ0	PCR_MFREEQ
     81 #define	PCR_CMDQ1	PCR_DFREEQ
     82 #define	PCR_CMDQ2	PCR_RFREEQ
     83 #define	PCR_CMDQ3	PCR_IFREEQ
     84 #define	PCR_RESTART	11
     85 #define PCR_FREEQNE	7
     86 #define PCR_CMDQNE	6
     87 #define	PCR_SHUTDOWN	4
     88 #define PCR_ENABLE	2
     89 #define PCR_INIT	1
     90 
     91 /* bits in PSR */
     92 #define PSR_OWN		0x80000000
     93 #define PSR_STATE	0x00070000
     94 #define PSR_STOPPED	0x00060000
     95 #define PSR_ENABLED	0x00040000
     96 #define PSR_INITED	0x00020000
     97 #define PSR_UNDEF	0x00010000
     98 #define PSR_RSQ		0x00000080
     99 #define	PSR_ERR		0x00000040
    100 
    101 /*
    102  * The DEBNx uses a very weird (set of) structure(s) to communicate
    103  * with something as simple as an ethernet controller. This is not
    104  * very different to the way communication is done over CI with disks.
    105  */
    106 
    107 /* Message packet */
    108 struct ni_msg {
    109 	u_int32_t	nm_forw;
    110 	u_int32_t	nm_back;
    111 	u_int32_t	nm_pad1;
    112 	u_int8_t	nm_pad2;
    113 	u_int8_t	nm_status;
    114 	u_int8_t	nm_opcode;
    115 	u_int8_t	nm_pad3;
    116 	u_int16_t	nm_len;
    117 	u_int8_t	nm_opcode2;
    118 	u_int8_t	nm_status2;
    119 	u_int32_t	nm_pad4;
    120 	u_int8_t	nm_text[128];
    121 };
    122 
    123 /* Datagram packet */
    124 struct ni_dg {
    125 	u_int32_t	nd_forw;
    126 	u_int32_t	nd_back;
    127 	u_int32_t	nd_pad1;
    128 	u_int8_t	nd_pad2;
    129 	u_int8_t	nd_status;
    130 	u_int8_t	nd_opcode;
    131 	u_int8_t	nd_pad3;
    132 	u_int16_t	nd_len;
    133 	u_int16_t	nd_status2;
    134 	u_int32_t	nd_cmdref;
    135 	u_int32_t	nd_ptdbidx;
    136 	struct {
    137 		u_int16_t	_offset;
    138 		u_int16_t	_len;
    139 		u_int16_t	_index;
    140 		u_int16_t	_key;
    141 	} bufs[NTXFRAGS];
    142 };
    143 
    144 #define	NIDG_CHAIN	0x8000
    145 
    146 /* NI parameter block */
    147 struct ni_param {
    148 	u_int8_t	np_dpa[8];
    149 	u_int8_t	np_apa[8];
    150 	u_int8_t	np_lsa[8];
    151 	u_int8_t	np_bvc[8];
    152 	u_int16_t	np_curaddr;
    153 	u_int16_t	np_maxaddr;
    154 	u_int16_t	np_curptt;
    155 	u_int16_t	np_maxptt;
    156 	u_int16_t	np_curfq;
    157 	u_int16_t	np_maxfq;
    158 	u_int32_t	np_sid;
    159 	u_int32_t	np_mop;
    160 	u_int32_t	np_flags;
    161 	u_int32_t	np_rcto;
    162 	u_int32_t	np_xmto;
    163 };
    164 
    165 #define NP_ECT		0x01
    166 #define NP_PAD		0x02
    167 #define NP_BOO		0x04
    168 #define NP_CAR		0x08
    169 #define NP_ILP		0x10
    170 #define NP_ELP		0x20
    171 #define NP_DCRC		0x40
    172 #define NP_THRU		0x80
    173 
    174 /* Protocol type definition block */
    175 struct ni_ptdb {
    176 	u_int16_t	np_type;	/* Protocol type */
    177 	u_int8_t	np_fque;	/* Free queue */
    178 	u_int8_t	np_flags;	/* See below */
    179 	u_int32_t	np_index;	/* protocol type index */
    180 	u_int16_t	np_adrlen;	/* # of multicast addresses */
    181 	u_int16_t	np_802;		/* for IEEE 802 packets */
    182 	u_int8_t	np_mcast[16][8];/* Multicast (direct match) array */
    183 };
    184 
    185 #define	PTDB_PROMISC	0x08
    186 #define	PTDB_802	0x10
    187 #define	PTDB_BDC	0x20
    188 #define	PTDB_UNKN	0x40
    189 #define	PTDB_AMC	0x80
    190 
    191 /* Buffer descriptor */
    192 struct ni_bbd {
    193 	u_int16_t	nb_status;	/* Offset, valid etc */
    194 	u_int16_t	nb_key;
    195 	u_int32_t	nb_len;		/* Buffer length */
    196 	u_int32_t	nb_pte;		/* start (vax) PTE for this buffer */
    197 	u_int32_t	nb_pad;
    198 };
    199 #define NIBD_OFFSET	0x1ff
    200 #define NIBD_VALID	0x8000
    201 
    202 
    203 /* Free Queue Block */
    204 struct ni_fqb {
    205 	u_int32_t	nf_mlen;
    206 	u_int32_t	nf_mpad;
    207 	u_int32_t	nf_mforw;
    208 	u_int32_t	nf_mback;
    209 	u_int32_t	nf_dlen;
    210 	u_int32_t	nf_dpad;
    211 	u_int32_t	nf_dforw;
    212 	u_int32_t	nf_dback;
    213 	u_int32_t	nf_rlen;
    214 	u_int32_t	nf_rpad;
    215 	u_int32_t	nf_rforw;
    216 	u_int32_t	nf_rback;
    217 	u_int32_t	nf_ilen;
    218 	u_int32_t	nf_ipad;
    219 	u_int32_t	nf_iforw;
    220 	u_int32_t	nf_iback;
    221 };
    222 
    223 /* DEBNx specific part of Generic VAX Port */
    224 struct ni_pqb {
    225 	u_int16_t	np_veclvl;	/* Interrupt vector + level */
    226 	u_int16_t	np_node;	/* Where to interrupt */
    227 	u_int32_t	np_freeq;
    228 	u_int32_t	np_vfqb;	/* Free queue block pointer */
    229 	u_int32_t	np_pad1[39];
    230 	u_int32_t	np_bvplvl;
    231 	u_int32_t	np_vpqb;	/* Virtual address of Generic PQB */
    232 	u_int32_t	np_vbdt;	/* Virtual address of descriptors */
    233 	u_int32_t	np_nbdr;	/* Number of descriptors */
    234 	u_int32_t	np_spt;		/* System Page Table */
    235 	u_int32_t	np_sptlen;	/* System Page Table length */
    236 	u_int32_t	np_gpt;		/* Global Page Table */
    237 	u_int32_t	np_gptlen;	/* Global Page Table length */
    238 	u_int32_t	np_mask;
    239 	u_int32_t	np_pad2[67];
    240 };
    241 
    242 /* "Generic VAX Port Control Block" whatever it means */
    243 struct ni_gvppqb {
    244 	u_int32_t	nc_forw0;
    245 	u_int32_t	nc_back0;
    246 	u_int32_t	nc_forw1;
    247 	u_int32_t	nc_back1;
    248 	u_int32_t	nc_forw2;
    249 	u_int32_t	nc_back2;
    250 	u_int32_t	nc_forw3;
    251 	u_int32_t	nc_back3;
    252 	u_int32_t	nc_forwr;
    253 	u_int32_t	nc_backr;
    254 	struct ni_pqb	nc_pqb;		/* DEBNx specific part of struct */
    255 };
    256 
    257 
    258 /* BVP opcodes, should be somewhere else */
    259 #define BVP_DGRAM	1
    260 #define BVP_MSG		2
    261 #define BVP_DGRAMI	3
    262 #define BVP_DGRAMRX	33
    263 #define BVP_MSGRX	34
    264 #define BVP_DGRAMIRX	35
    265 
    266 /* NI-specific sub-opcodes */
    267 #define NI_WSYSID	1
    268 #define NI_RSYSID	2
    269 #define NI_WPARAM	3
    270 #define NI_RPARAM	4
    271 #define NI_RCCNTR	5
    272 #define NI_RDCNTR	6
    273 #define NI_STPTDB	7
    274 #define NI_CLPTDB	8
    275 
    276 /* bits in ni_pudr */
    277 #define PUDR_TAPE	0x40000000	/* tk50 & assoc logic ok */
    278 #define PUDR_PATCH	0x20000000	/* patch logic ok */
    279 #define PUDR_VRAM	0x10000000	/* DEBNx onboard RAM ok */
    280 #define PUDR_VROM1	0x08000000	/* uVax ROM 1 ok */ /* ? */
    281 #define PUDR_VROM2	0x04000000	/* uVax ROM 2 ok */
    282 #define PUDR_VROM3	0x02000000	/* uVax ROM 3 ok */
    283 #define PUDR_VROM4	0x01000000	/* uVax ROM 4 ok */
    284 #define PUDR_UVAX	0x00800000	/* uVax passes self test */
    285 #define PUDR_BI		0x00400000	/* BIIC and BCI3 chips ok */
    286 #define PUDR_TMR	0x00200000	/* interval timer ok */
    287 #define PUDR_IRQ	0x00100000	/* no IRQ lines stuck */
    288 #define PUDR_NI		0x00080000	/* Ethernet ctlr ok */
    289 #define PUDR_TK50	0x00040000	/* tk50 present */
    290 #define PUDR_PRES	0x00001000	/* tk50 present (again?!) */
    291 #define PUDR_UVINT	0x00000800	/* uVax-to-80186 intr logic ok */
    292 #define PUDR_BUSHD	0x00000400	/* no bus hold errors */
    293 #define PUDR_II32	0x00000200	/* II32 transceivers ok */
    294 #define PUDR_MPSC	0x00000100	/* MPSC logic ok */
    295 #define PUDR_GAP	0x00000080	/* gap-detect logic ok */
    296 #define PUDR_MISC	0x00000040	/* misc. registers ok */
    297 #define PUDR_UNEXP	0x00000020	/* unexpected interrupt trapped */
    298 #define PUDR_80186	0x00000010	/* 80186 ok */
    299 #define PUDR_PATCH2	0x00000008	/* patch logic ok (again) */
    300 #define PUDR_8RAM	0x00000004	/* 80186 RAM ok */
    301 #define PUDR_8ROM2	0x00000002	/* 80186 ROM1 ok */
    302 #define PUDR_8ROM1	0x00000001	/* 80186 ROM2 ok */
    303