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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 | /* * Intel i82586 Ethernet definitions * * This is an extension to the Linux operating system, and is covered by the * same Gnu Public License that covers that work. * * copyrights (c) 1994 by Michael Hipp (hippm@informatik.uni-tuebingen.de) * * I have done a look in the following sources: * crynwr-packet-driver by Russ Nelson * Garret A. Wollman's i82586-driver for BSD */ /* * Cloned from ni52.h, copyright as above. * * Modified for Sun3 OBIO i82586 by Sam Creasey (sammy@sammy.net) */ /* defines for the obio chip (not vme) */ #define IEOB_NORSET 0x80 /* don't reset the board */ #define IEOB_ONAIR 0x40 /* put us on the air */ #define IEOB_ATTEN 0x20 /* attention! */ #define IEOB_IENAB 0x10 /* interrupt enable */ #define IEOB_XXXXX 0x08 /* free bit */ #define IEOB_XCVRL2 0x04 /* level 2 transceiver? */ #define IEOB_BUSERR 0x02 /* bus error */ #define IEOB_INT 0x01 /* interrupt */ /* where the obio one lives */ #define IE_OBIO 0xc0000 #define IE_IRQ 3 /* * where to find the System Configuration Pointer (SCP) */ #define SCP_DEFAULT_ADDRESS 0xfffff4 /* * System Configuration Pointer Struct */ struct scp_struct { unsigned short zero_dum0; /* has to be zero */ unsigned char sysbus; /* 0=16Bit,1=8Bit */ unsigned char zero_dum1; /* has to be zero for 586 */ unsigned short zero_dum2; unsigned short zero_dum3; char *iscp; /* pointer to the iscp-block */ }; /* * Intermediate System Configuration Pointer (ISCP) */ struct iscp_struct { unsigned char busy; /* 586 clears after successful init */ unsigned char zero_dummy; /* has to be zero */ unsigned short scb_offset; /* pointeroffset to the scb_base */ char *scb_base; /* base-address of all 16-bit offsets */ }; /* * System Control Block (SCB) */ struct scb_struct { unsigned char rus; unsigned char cus; unsigned char cmd_ruc; /* command word: RU part */ unsigned char cmd_cuc; /* command word: CU part & ACK */ unsigned short cbl_offset; /* pointeroffset, command block list */ unsigned short rfa_offset; /* pointeroffset, receive frame area */ unsigned short crc_errs; /* CRC-Error counter */ unsigned short aln_errs; /* allignmenterror counter */ unsigned short rsc_errs; /* Resourceerror counter */ unsigned short ovrn_errs; /* OVerrunerror counter */ }; /* * possible command values for the command word */ #define RUC_MASK 0x0070 /* mask for RU commands */ #define RUC_NOP 0x0000 /* NOP-command */ #define RUC_START 0x0010 /* start RU */ #define RUC_RESUME 0x0020 /* resume RU after suspend */ #define RUC_SUSPEND 0x0030 /* suspend RU */ #define RUC_ABORT 0x0040 /* abort receiver operation immediately */ #define CUC_MASK 0x07 /* mask for CU command */ #define CUC_NOP 0x00 /* NOP-command */ #define CUC_START 0x01 /* start execution of 1. cmd on the CBL */ #define CUC_RESUME 0x02 /* resume after suspend */ #define CUC_SUSPEND 0x03 /* Suspend CU */ #define CUC_ABORT 0x04 /* abort command operation immediately */ #define ACK_MASK 0xf0 /* mask for ACK command */ #define ACK_CX 0x80 /* acknowledges STAT_CX */ #define ACK_FR 0x40 /* ack. STAT_FR */ #define ACK_CNA 0x20 /* ack. STAT_CNA */ #define ACK_RNR 0x10 /* ack. STAT_RNR */ /* * possible status values for the status word */ #define STAT_MASK 0xf0 /* mask for cause of interrupt */ #define STAT_CX 0x80 /* CU finished cmd with its I bit set */ #define STAT_FR 0x40 /* RU finished receiving a frame */ #define STAT_CNA 0x20 /* CU left active state */ #define STAT_RNR 0x10 /* RU left ready state */ #define CU_STATUS 0x7 /* CU status, 0=idle */ #define CU_SUSPEND 0x1 /* CU is suspended */ #define CU_ACTIVE 0x2 /* CU is active */ #define RU_STATUS 0x70 /* RU status, 0=idle */ #define RU_SUSPEND 0x10 /* RU suspended */ #define RU_NOSPACE 0x20 /* RU no resources */ #define RU_READY 0x40 /* RU is ready */ /* * Receive Frame Descriptor (RFD) */ struct rfd_struct { unsigned char stat_low; /* status word */ unsigned char stat_high; /* status word */ unsigned char rfd_sf; /* 82596 mode only */ unsigned char last; /* Bit15,Last Frame on List / Bit14,suspend */ unsigned short next; /* linkoffset to next RFD */ unsigned short rbd_offset; /* pointeroffset to RBD-buffer */ unsigned char dest[6]; /* ethernet-address, destination */ unsigned char source[6]; /* ethernet-address, source */ unsigned short length; /* 802.3 frame-length */ unsigned short zero_dummy; /* dummy */ }; #define RFD_LAST 0x80 /* last: last rfd in the list */ #define RFD_SUSP 0x40 /* last: suspend RU after */ #define RFD_COMPL 0x80 #define RFD_OK 0x20 #define RFD_BUSY 0x40 #define RFD_ERR_LEN 0x10 /* Length error (if enabled length-checking */ #define RFD_ERR_CRC 0x08 /* CRC error */ #define RFD_ERR_ALGN 0x04 /* Alignment error */ #define RFD_ERR_RNR 0x02 /* status: receiver out of resources */ #define RFD_ERR_OVR 0x01 /* DMA Overrun! */ #define RFD_ERR_FTS 0x0080 /* Frame to short */ #define RFD_ERR_NEOP 0x0040 /* No EOP flag (for bitstuffing only) */ #define RFD_ERR_TRUN 0x0020 /* (82596 only/SF mode) indicates truncated frame */ #define RFD_MATCHADD 0x0002 /* status: Destinationaddress !matches IA (only 82596) */ #define RFD_COLLDET 0x0001 /* Detected collision during reception */ /* * Receive Buffer Descriptor (RBD) */ struct rbd_struct { unsigned short status; /* status word,number of used bytes in buff */ unsigned short next; /* pointeroffset to next RBD */ char *buffer; /* receive buffer address pointer */ unsigned short size; /* size of this buffer */ unsigned short zero_dummy; /* dummy */ }; #define RBD_LAST 0x8000 /* last buffer */ #define RBD_USED 0x4000 /* this buffer has data */ #define RBD_MASK 0x3fff /* size-mask for length */ /* * Statusvalues for Commands/RFD */ #define STAT_COMPL 0x8000 /* status: frame/command is complete */ #define STAT_BUSY 0x4000 /* status: frame/command is busy */ #define STAT_OK 0x2000 /* status: frame/command is ok */ /* * Action-Commands */ #define CMD_NOP 0x0000 /* NOP */ #define CMD_IASETUP 0x0001 /* initial address setup command */ #define CMD_CONFIGURE 0x0002 /* configure command */ #define CMD_MCSETUP 0x0003 /* MC setup command */ #define CMD_XMIT 0x0004 /* transmit command */ #define CMD_TDR 0x0005 /* time domain reflectometer (TDR) command */ #define CMD_DUMP 0x0006 /* dump command */ #define CMD_DIAGNOSE 0x0007 /* diagnose command */ /* * Action command bits */ #define CMD_LAST 0x8000 /* indicates last command in the CBL */ #define CMD_SUSPEND 0x4000 /* suspend CU after this CB */ #define CMD_INT 0x2000 /* generate interrupt after execution */ /* * NOP - command */ struct nop_cmd_struct { unsigned short cmd_status; /* status of this command */ unsigned short cmd_cmd; /* the command itself (+bits) */ unsigned short cmd_link; /* offsetpointer to next command */ }; /* * IA Setup command */ struct iasetup_cmd_struct { unsigned short cmd_status; unsigned short cmd_cmd; unsigned short cmd_link; unsigned char iaddr[6]; }; /* * Configure command */ struct configure_cmd_struct { unsigned short cmd_status; unsigned short cmd_cmd; unsigned short cmd_link; unsigned char byte_cnt; /* size of the config-cmd */ unsigned char fifo; /* fifo/recv monitor */ unsigned char sav_bf; /* save bad frames (bit7=1)*/ unsigned char adr_len; /* adr_len(0-2),al_loc(3),pream(4-5),loopbak(6-7)*/ unsigned char priority; /* lin_prio(0-2),exp_prio(4-6),bof_metd(7) */ unsigned char ifs; /* inter frame spacing */ unsigned char time_low; /* slot time low */ unsigned char time_high; /* slot time high(0-2) and max. retries(4-7) */ unsigned char promisc; /* promisc-mode(0) , et al (1-7) */ unsigned char carr_coll; /* carrier(0-3)/collision(4-7) stuff */ unsigned char fram_len; /* minimal frame len */ unsigned char dummy; /* dummy */ }; /* * Multicast Setup command */ struct mcsetup_cmd_struct { unsigned short cmd_status; unsigned short cmd_cmd; unsigned short cmd_link; unsigned short mc_cnt; /* number of bytes in the MC-List */ unsigned char mc_list[0][6]; /* pointer to 6 bytes entries */ }; /* * DUMP command */ struct dump_cmd_struct { unsigned short cmd_status; unsigned short cmd_cmd; unsigned short cmd_link; unsigned short dump_offset; /* pointeroffset to DUMP space */ }; /* * transmit command */ struct transmit_cmd_struct { unsigned short cmd_status; unsigned short cmd_cmd; unsigned short cmd_link; unsigned short tbd_offset; /* pointeroffset to TBD */ unsigned char dest[6]; /* destination address of the frame */ unsigned short length; /* user defined: 802.3 length / Ether type */ }; #define TCMD_ERRMASK 0x0fa0 #define TCMD_MAXCOLLMASK 0x000f #define TCMD_MAXCOLL 0x0020 #define TCMD_HEARTBEAT 0x0040 #define TCMD_DEFERRED 0x0080 #define TCMD_UNDERRUN 0x0100 #define TCMD_LOSTCTS 0x0200 #define TCMD_NOCARRIER 0x0400 #define TCMD_LATECOLL 0x0800 struct tdr_cmd_struct { unsigned short cmd_status; unsigned short cmd_cmd; unsigned short cmd_link; unsigned short status; }; #define TDR_LNK_OK 0x8000 /* No link problem identified */ #define TDR_XCVR_PRB 0x4000 /* indicates a transceiver problem */ #define TDR_ET_OPN 0x2000 /* open, no correct termination */ #define TDR_ET_SRT 0x1000 /* TDR detected a short circuit */ #define TDR_TIMEMASK 0x07ff /* mask for the time field */ /* * Transmit Buffer Descriptor (TBD) */ struct tbd_struct { unsigned short size; /* size + EOF-Flag(15) */ unsigned short next; /* pointeroffset to next TBD */ char *buffer; /* pointer to buffer */ }; #define TBD_LAST 0x8000 /* EOF-Flag, indicates last buffer in list */ |