[df49c60] | 1 | /* network.c: An 82596 ethernet driver for rtems-bsd. |
---|
[5a23ca84] | 2 | * |
---|
| 3 | * $Id$ |
---|
| 4 | */ |
---|
| 5 | |
---|
| 6 | #define KERNEL |
---|
| 7 | |
---|
[6128a4a] | 8 | /* |
---|
[5a23ca84] | 9 | * Selectively define to debug the network driver. If you define any of these |
---|
| 10 | * you must run with polled console I/O. |
---|
| 11 | */ |
---|
[6128a4a] | 12 | |
---|
| 13 | /* |
---|
[df49c60] | 14 | #define DBG_ADD_CMD |
---|
| 15 | #define DBG_WAIT |
---|
| 16 | #define DBG_SEND |
---|
| 17 | #define DBG_MEM |
---|
| 18 | #define DBG_SELFTEST_CMD |
---|
| 19 | #define DBG_DUMP_CMD |
---|
| 20 | #define DBG_RESET |
---|
| 21 | #define DBG_ATTACH |
---|
[5a23ca84] | 22 | #define DBG_START |
---|
| 23 | #define DBG_INIT |
---|
[df49c60] | 24 | #define DBG_STOP |
---|
| 25 | #define DBG_RX |
---|
[5a23ca84] | 26 | #define DBG_ISR |
---|
[df49c60] | 27 | #define DBG_IOCTL |
---|
| 28 | #define DBG_STAT |
---|
| 29 | #define DBG_PACKETS |
---|
| 30 | */ |
---|
[5a23ca84] | 31 | |
---|
| 32 | /* |
---|
| 33 | * Default number of buffer descriptors and buffer sizes. |
---|
| 34 | */ |
---|
[df49c60] | 35 | #define RX_BUF_COUNT 15 |
---|
| 36 | #define TX_BUF_COUNT 4 |
---|
| 37 | #define TX_BD_PER_BUF 4 |
---|
[5a23ca84] | 38 | |
---|
[df49c60] | 39 | #define RBUF_SIZE 1520 |
---|
[5a23ca84] | 40 | |
---|
[df49c60] | 41 | #define UTI_596_ETH_MIN_SIZE 60 |
---|
[5a23ca84] | 42 | |
---|
[8ef3818] | 43 | #define INET_ADDR_MAX_BUF_SIZE (sizeof "255.255.255.255") |
---|
| 44 | |
---|
[5a23ca84] | 45 | /* |
---|
| 46 | * RTEMS events |
---|
| 47 | */ |
---|
| 48 | #define INTERRUPT_EVENT RTEMS_EVENT_1 |
---|
| 49 | #define START_TRANSMIT_EVENT RTEMS_EVENT_2 |
---|
| 50 | #define NIC_RESET_EVENT RTEMS_EVENT_3 |
---|
| 51 | |
---|
| 52 | #include <bsp.h> |
---|
| 53 | #include <stdio.h> |
---|
[db9ae70] | 54 | #include <string.h> |
---|
| 55 | #include <stdlib.h> |
---|
[5a23ca84] | 56 | |
---|
| 57 | #include <rtems/error.h> |
---|
| 58 | #include <rtems/rtems_bsdnet.h> |
---|
| 59 | #include <sys/param.h> |
---|
| 60 | #include <sys/mbuf.h> |
---|
| 61 | #include <sys/socket.h> |
---|
| 62 | #include <sys/sockio.h> |
---|
[8ef3818] | 63 | #include <sys/types.h> |
---|
[5a23ca84] | 64 | #include <net/if.h> |
---|
| 65 | #include <netinet/in.h> |
---|
| 66 | #include <netinet/if_ether.h> |
---|
[8ef3818] | 67 | #include <arpa/inet.h> |
---|
[5a23ca84] | 68 | |
---|
| 69 | #include "uti596.h" |
---|
| 70 | |
---|
[df49c60] | 71 | /* If we are running interrupt driven I/O no debug output is printed */ |
---|
[5a23ca84] | 72 | #if CD2401_POLLED_IO == 1 |
---|
[df49c60] | 73 | #define printk(arglist) printk arglist; |
---|
[5a23ca84] | 74 | #else |
---|
[df49c60] | 75 | #define printk(arglist) |
---|
[5a23ca84] | 76 | #endif |
---|
| 77 | |
---|
[df49c60] | 78 | #define UTI_596_ASSERT( condition, str ) if (!( condition ) ) { printk((str)) } |
---|
[5a23ca84] | 79 | |
---|
[df49c60] | 80 | /* Types of PORT commands */ |
---|
| 81 | #define UTI596_RESET_PORT_FUNCTION 0 |
---|
| 82 | #define UTI596_SELFTEST_PORT_FUNCTION 1 |
---|
| 83 | #define UTI596_SCP_PORT_FUNCTION 2 |
---|
| 84 | #define UTI596_DUMP_PORT_FUNCTION 3 |
---|
[5a23ca84] | 85 | |
---|
[df49c60] | 86 | /* Types of waiting for commands */ |
---|
[8ef3818] | 87 | #define UTI596_NO_WAIT 0 |
---|
| 88 | #define UTI596_WAIT_FOR_CU_ACCEPT 1 |
---|
| 89 | #define UTI596_WAIT_FOR_INITIALIZATION 2 |
---|
| 90 | #define UTI596_WAIT_FOR_STAT_C 3 |
---|
[df49c60] | 91 | |
---|
| 92 | /* Device dependent data structure */ |
---|
[5a23ca84] | 93 | static uti596_softc_ uti596_softc; |
---|
| 94 | |
---|
[df49c60] | 95 | /* Globals */ |
---|
| 96 | int count_rx = 0; |
---|
[5a23ca84] | 97 | static int scbStatus; |
---|
| 98 | static rtems_status_code sc; |
---|
| 99 | static i596_cmd *pIsrCmd; |
---|
| 100 | static i596_rfd *pIsrRfd; |
---|
| 101 | |
---|
| 102 | /* |
---|
| 103 | * Initial 596 configuration |
---|
| 104 | */ |
---|
| 105 | char uti596initSetup[] = { |
---|
[df49c60] | 106 | 0x0E, /* Byte 0: length, prefetch off ( no RBD's ) */ |
---|
| 107 | 0xC8, /* Byte 1: fifo to 8, monitor off */ |
---|
| 108 | 0x40, /* Byte 2: don't save bad frames ( was save= 80, use intel's 40 )*/ |
---|
| 109 | 0x2E, /* Byte 3: No source address insertion, 8 byte preamble */ |
---|
| 110 | 0x00, /* Byte 4: priority and backoff defaults */ |
---|
| 111 | 0x60, /* Byte 5: interframe spacing */ |
---|
| 112 | 0x00, /* Byte 6: slot time LSB */ |
---|
| 113 | 0xf2, /* Byte 7: slot time and retries */ |
---|
| 114 | 0x0C, /* Byte 8: not promisc, enable bcast, tx no crs, crc inserted 32bit, 802.3 framing */ |
---|
| 115 | 0x08, /* Byte 9: collision detect */ |
---|
| 116 | 0x40, /* Byte 10: minimum frame length */ |
---|
| 117 | 0xfb, /* Byte 11: tried C8 same as byte 1 in bits 6-7, else ignored*/ |
---|
| 118 | 0x00, /* Byte 12: disable full duplex */ |
---|
| 119 | 0x3f /* Byte 13: no multi IA, backoff enabled */ |
---|
[5a23ca84] | 120 | }; |
---|
| 121 | |
---|
| 122 | /* Local Routines */ |
---|
| 123 | |
---|
[df49c60] | 124 | static unsigned long word_swap ( unsigned long ); |
---|
| 125 | static void * malloc_16byte_aligned ( void **, void ** adjusted_pointer, size_t ); |
---|
[db9ae70] | 126 | RTEMS_INLINE_ROUTINE void uti596_writePortFunction ( volatile void *, unsigned long ); |
---|
[d2ae273] | 127 | /* currently unused by RTEMS */ |
---|
| 128 | #if 0 |
---|
[df49c60] | 129 | RTEMS_INLINE_ROUTINE void uti596_portReset( void ); |
---|
| 130 | static unsigned long uti596_portSelfTest( i596_selftest * ); |
---|
| 131 | static int uti596_portDump ( i596_dump_result * ); |
---|
[d2ae273] | 132 | static void uti596_CU_dump ( i596_dump_result * ); |
---|
| 133 | #endif |
---|
[2a7e204] | 134 | static int uti596_wait ( uti596_softc_ *, uint8_t); |
---|
| 135 | static int uti596_issueCA ( uti596_softc_ *, uint8_t); |
---|
[df49c60] | 136 | static void uti596_addCmd ( i596_cmd * ); |
---|
| 137 | static void uti596_addPolledCmd ( i596_cmd * ); |
---|
| 138 | static void uti596_dump_scb ( void ); |
---|
| 139 | static int uti596_setScpAndScb ( uti596_softc_ * ); |
---|
| 140 | static int uti596_diagnose ( void ); |
---|
| 141 | static int uti596_configure ( uti596_softc_ * ); |
---|
| 142 | static int uti596_IAsetup ( uti596_softc_ * ); |
---|
| 143 | static int uti596_initTBD ( uti596_softc_ * ); |
---|
| 144 | static int uti596_initRFA ( int ); |
---|
| 145 | static void uti596_initMem ( uti596_softc_ * ); |
---|
| 146 | static void uti596_initialize ( uti596_softc_ * ); |
---|
| 147 | static void uti596_initialize_hardware ( uti596_softc_ * ); |
---|
| 148 | static void uti596_reset_hardware ( uti596_softc_ *); |
---|
| 149 | static void uti596_reset ( void ); |
---|
| 150 | static void uti596_clearListStatus ( i596_rfd * ); |
---|
| 151 | static i596_rfd * uti596_dequeue ( i596_rfd ** ); |
---|
| 152 | static void uti596_append ( i596_rfd ** , i596_rfd * ); |
---|
| 153 | static void uti596_supplyFD ( i596_rfd * ); |
---|
| 154 | static void send_packet ( struct ifnet *, struct mbuf * ); |
---|
| 155 | |
---|
| 156 | /* Required RTEMS network driver functions and tasks (plus reset daemon) */ |
---|
| 157 | |
---|
| 158 | static void uti596_start ( struct ifnet * ); |
---|
| 159 | void uti596_init ( void * ); |
---|
| 160 | void uti596_stop ( uti596_softc_ * ); |
---|
| 161 | void uti596_txDaemon ( void * ); |
---|
| 162 | void uti596_rxDaemon ( void * ); |
---|
| 163 | void uti596_resetDaemon( void * ); |
---|
| 164 | rtems_isr uti596_DynamicInterruptHandler ( rtems_vector_number ); |
---|
[80d4330] | 165 | static int uti596_ioctl ( struct ifnet *, u_long, caddr_t ); |
---|
[df49c60] | 166 | void uti596_stats ( uti596_softc_ * ); |
---|
| 167 | |
---|
| 168 | #ifdef DBG_PACKETS |
---|
| 169 | static void dumpQ( void ); |
---|
| 170 | static void show_buffers( void ); |
---|
| 171 | static void show_queues( void ); |
---|
[5a23ca84] | 172 | static void print_eth ( unsigned char * ); |
---|
| 173 | static void print_hdr ( unsigned char * ); |
---|
| 174 | static void print_pkt ( unsigned char * ); |
---|
| 175 | static void print_echo ( unsigned char * ); |
---|
| 176 | #endif |
---|
| 177 | |
---|
[df49c60] | 178 | /* |
---|
| 179 | * word_swap |
---|
| 180 | * |
---|
| 181 | * Return a 32 bit value, swapping the upper and lower words first. |
---|
| 182 | * |
---|
| 183 | * Input parameters: |
---|
| 184 | * val - 32 bit value to swap |
---|
| 185 | * |
---|
| 186 | * Output parameters: NONE |
---|
| 187 | * |
---|
| 188 | * Return value: |
---|
| 189 | * Input value with upper and lower 16-bit words swapped |
---|
[5a23ca84] | 190 | */ |
---|
[df49c60] | 191 | static unsigned long word_swap( |
---|
| 192 | unsigned long val |
---|
| 193 | ) |
---|
| 194 | { |
---|
| 195 | return (((val >> 16)&(0x0000ffff)) | ((val << 16)&(0xffff0000))); |
---|
[5a23ca84] | 196 | } |
---|
| 197 | |
---|
[df49c60] | 198 | /* |
---|
| 199 | * malloc_16byte_aligned |
---|
| 200 | * |
---|
| 201 | * Allocate a block of a least nbytes aligned on a 16-byte boundary. |
---|
| 202 | * Clients are responsible to store both the real address and the adjusted |
---|
| 203 | * address. The real address must be used to free the block. |
---|
| 204 | * |
---|
| 205 | * Input parameters: |
---|
| 206 | * real_pointer - pointer to a void * pointer in which to store the starting |
---|
| 207 | * address of the block. Required for free. |
---|
| 208 | * adjusted_pointer - pointer to a void * pointer in which to store the |
---|
| 209 | * starting address of the block rounded up to the next |
---|
| 210 | * 16 byte boundary. |
---|
| 211 | * nbytes - number of bytes of storage requested |
---|
| 212 | * |
---|
| 213 | * Output parameters: |
---|
| 214 | * real_pointer - starting address of the block. |
---|
| 215 | * adjusted_pointer - starting address of the block rounded up to the next |
---|
| 216 | * 16 byte boundary. |
---|
| 217 | * |
---|
| 218 | * Return value: |
---|
| 219 | * starting address of the block rounded up to the next 16 byte boundary. |
---|
| 220 | * NULL if no storage was allocated. |
---|
| 221 | */ |
---|
| 222 | static void * malloc_16byte_aligned( |
---|
| 223 | void ** real_pointer, |
---|
| 224 | void ** adjusted_pointer, |
---|
| 225 | size_t nbytes |
---|
[5a23ca84] | 226 | ) |
---|
| 227 | { |
---|
[df49c60] | 228 | *real_pointer = malloc( nbytes + 0xF, 0, M_NOWAIT ); |
---|
| 229 | *adjusted_pointer = (void *)(((unsigned long)*real_pointer + 0xF ) & 0xFFFFFFF0 ); |
---|
| 230 | return *adjusted_pointer; |
---|
| 231 | } |
---|
[5a23ca84] | 232 | |
---|
[df49c60] | 233 | /* |
---|
| 234 | * uti596_scp_alloc |
---|
| 235 | * |
---|
| 236 | * Allocate a new scp, possibly freeing a previously allocated one. |
---|
| 237 | * |
---|
| 238 | * Input parameters: |
---|
| 239 | * sc - pointer to the global uti596_softc in which to store pointers |
---|
| 240 | * to the newly allocated block. |
---|
| 241 | * |
---|
| 242 | * Output parameters: NONE |
---|
| 243 | * |
---|
| 244 | * Return value: |
---|
| 245 | * Pointer to the newly allocated, 16-byte aligned scp. |
---|
| 246 | */ |
---|
| 247 | static i596_scp * uti596_scp_alloc( |
---|
| 248 | uti596_softc_ * sc |
---|
| 249 | ) |
---|
| 250 | { |
---|
| 251 | if( sc->base_scp != NULL ) { |
---|
| 252 | #ifdef DBG_MEM |
---|
| 253 | printk(("uti596_scp_alloc: Already have an SCP at %p\n", sc->base_scp)) |
---|
| 254 | #endif |
---|
| 255 | return sc->pScp; |
---|
[5a23ca84] | 256 | } |
---|
[6128a4a] | 257 | |
---|
[df49c60] | 258 | /* allocate enough memory for the Scp block to be aligned on 16 byte boundary */ |
---|
| 259 | malloc_16byte_aligned( (void *)&(sc->base_scp), (void *)&(sc->pScp), sizeof( i596_scp ) ); |
---|
[6128a4a] | 260 | |
---|
[df49c60] | 261 | #ifdef DBG_MEM |
---|
| 262 | printk(("uti596_scp_alloc: Scp base address is %p\n", sc->base_scp)) |
---|
| 263 | printk(("uti596_scp_alloc: Scp aligned address is : %p\n",sc->pScp)) |
---|
| 264 | #endif |
---|
[5a23ca84] | 265 | |
---|
[df49c60] | 266 | return sc->pScp; |
---|
| 267 | } |
---|
[5a23ca84] | 268 | |
---|
[df49c60] | 269 | /* |
---|
| 270 | * uti596_writePortFunction |
---|
[6128a4a] | 271 | * |
---|
[df49c60] | 272 | * Write the command into the PORT. |
---|
[6128a4a] | 273 | * |
---|
[df49c60] | 274 | * Input parameters: |
---|
| 275 | * addr - 16-byte aligned address to write into the PORT. |
---|
| 276 | * cmd - 4-bit cmd to write into the PORT |
---|
| 277 | * |
---|
| 278 | * Output parameters: NONE |
---|
| 279 | * |
---|
| 280 | * Return value: NONE |
---|
[6128a4a] | 281 | * |
---|
[df49c60] | 282 | * The Motorola manual swapped the high and low registers. |
---|
| 283 | */ |
---|
| 284 | RTEMS_INLINE_ROUTINE void uti596_writePortFunction( |
---|
[db9ae70] | 285 | volatile void * addr, |
---|
[df49c60] | 286 | unsigned long cmd |
---|
| 287 | ) |
---|
| 288 | { |
---|
| 289 | i82596->port_lower = (unsigned short)(((unsigned long)addr & 0xFFF0) | cmd); |
---|
| 290 | i82596->port_upper = (unsigned short)(((unsigned long)addr >> 16 ) & 0xFFFF); |
---|
| 291 | } |
---|
[5a23ca84] | 292 | |
---|
[df49c60] | 293 | /* |
---|
| 294 | * uti596_portReset |
---|
[6128a4a] | 295 | * |
---|
[df49c60] | 296 | * Issue a port Reset to the uti596 |
---|
[6128a4a] | 297 | * |
---|
[df49c60] | 298 | * Input parameters: NONE |
---|
| 299 | * |
---|
| 300 | * Output parameters: NONE |
---|
| 301 | * |
---|
| 302 | * Return value: NONE |
---|
| 303 | */ |
---|
| 304 | RTEMS_INLINE_ROUTINE void uti596_portReset( void ) |
---|
| 305 | { |
---|
| 306 | uti596_writePortFunction( NULL, UTI596_RESET_PORT_FUNCTION ); |
---|
[5a23ca84] | 307 | } |
---|
| 308 | |
---|
[d2ae273] | 309 | /* currently unused by RTEMS */ |
---|
| 310 | #if 0 |
---|
[df49c60] | 311 | /* |
---|
| 312 | * uti596_portSelfTest |
---|
[5a23ca84] | 313 | * |
---|
[df49c60] | 314 | * Perform a self-test. Wait for up to 1 second for the test to |
---|
| 315 | * complete. Normally, the test should complete in a very short time, |
---|
| 316 | * so busy waiting is not an issue. |
---|
[5a23ca84] | 317 | * |
---|
[df49c60] | 318 | * Input parameters: |
---|
| 319 | * stp - pointer to a 16-byte aligned uti596_selftest structure. |
---|
[5a23ca84] | 320 | * |
---|
[df49c60] | 321 | * Output parameters: NONE |
---|
| 322 | * |
---|
| 323 | * Return value: |
---|
| 324 | * 32-bit result field if successful, -1 otherwise. |
---|
| 325 | */ |
---|
| 326 | static unsigned long uti596_portSelfTest( |
---|
| 327 | i596_selftest * stp |
---|
[5a23ca84] | 328 | ) |
---|
| 329 | { |
---|
[df49c60] | 330 | rtems_interval ticks_per_second, start_ticks, end_ticks; |
---|
[6128a4a] | 331 | |
---|
[df49c60] | 332 | stp->results = 0xFFFFFFFF; |
---|
| 333 | uti596_writePortFunction( stp, UTI596_SELFTEST_PORT_FUNCTION ); |
---|
| 334 | |
---|
| 335 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_PER_SECOND, &ticks_per_second); |
---|
| 336 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
[6128a4a] | 337 | end_ticks = start_ticks + ticks_per_second; |
---|
| 338 | |
---|
[df49c60] | 339 | do { |
---|
| 340 | if( stp->results != 0xFFFFFFFF ) |
---|
| 341 | break; |
---|
| 342 | else |
---|
| 343 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
| 344 | } while (start_ticks <= end_ticks); |
---|
| 345 | |
---|
| 346 | if (start_ticks > end_ticks ) { |
---|
| 347 | #ifdef DBG_SELFTEST_CMD |
---|
| 348 | printk(("uti596_selftest: Timed out\n" )) |
---|
| 349 | #endif |
---|
| 350 | return -1; |
---|
| 351 | } |
---|
| 352 | else { |
---|
| 353 | #ifdef DBG_SELFTEST_CMD |
---|
| 354 | printk(("uti596_selftest: Succeeded with signature = 0x%08x, result = 0x%08x\n", |
---|
| 355 | stp->signature, |
---|
| 356 | stp->results)) |
---|
| 357 | #endif |
---|
| 358 | return stp->results; |
---|
| 359 | } |
---|
[5a23ca84] | 360 | } |
---|
[d2ae273] | 361 | #endif |
---|
[5a23ca84] | 362 | |
---|
[d2ae273] | 363 | /* currently unused by RTEMS */ |
---|
| 364 | #if 0 |
---|
[df49c60] | 365 | /* |
---|
| 366 | * uti596_portDump |
---|
[5a23ca84] | 367 | * |
---|
[df49c60] | 368 | * Perform a dump Wait for up to 1 second for the test to |
---|
| 369 | * complete. Normally, the test should complete in a very short time, |
---|
| 370 | * so busy waiting is not an issue. |
---|
[5a23ca84] | 371 | * |
---|
[df49c60] | 372 | * Input parameters: |
---|
| 373 | * dp - pointer to a 16-byte aligned uti596_dump structure. |
---|
[5a23ca84] | 374 | * |
---|
[df49c60] | 375 | * Output parameters: NONE |
---|
[5a23ca84] | 376 | * |
---|
[df49c60] | 377 | * Return value: |
---|
| 378 | * 16-bit dump_status field if successful, -1 otherwise. |
---|
| 379 | */ |
---|
| 380 | static int uti596_portDump( |
---|
| 381 | i596_dump_result * dp |
---|
[5a23ca84] | 382 | ) |
---|
| 383 | { |
---|
[df49c60] | 384 | rtems_interval ticks_per_second, start_ticks, end_ticks; |
---|
[6128a4a] | 385 | |
---|
[df49c60] | 386 | dp->dump_status = 0; |
---|
| 387 | uti596_writePortFunction( dp, UTI596_DUMP_PORT_FUNCTION ); |
---|
[5a23ca84] | 388 | |
---|
[df49c60] | 389 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_PER_SECOND, &ticks_per_second); |
---|
| 390 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
[6128a4a] | 391 | end_ticks = start_ticks + ticks_per_second; |
---|
| 392 | |
---|
[df49c60] | 393 | do { |
---|
| 394 | if( dp->dump_status != 0xA006 ) |
---|
| 395 | break; |
---|
| 396 | else |
---|
| 397 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
| 398 | } while (start_ticks <= end_ticks); |
---|
| 399 | |
---|
| 400 | if (start_ticks > end_ticks ) { |
---|
| 401 | #ifdef DBG_DUMP_CMD |
---|
| 402 | printk(("uti596_dump: Timed out with dump at 0x%08x\n", (unsigned long)dp )) |
---|
| 403 | #endif |
---|
| 404 | return -1; |
---|
| 405 | } |
---|
| 406 | else { |
---|
| 407 | #ifdef DBG_DUMP_CMD |
---|
| 408 | printk(("uti596_dump: Succeeded with dump at = 0x%08x\n", (unsigned long)dp )) |
---|
| 409 | #endif |
---|
| 410 | return dp->dump_status; |
---|
| 411 | } |
---|
| 412 | } |
---|
[d2ae273] | 413 | #endif |
---|
[5a23ca84] | 414 | |
---|
[df49c60] | 415 | /* |
---|
| 416 | * uti596_wait |
---|
| 417 | * |
---|
| 418 | * Wait for a certain condition. |
---|
[6128a4a] | 419 | * |
---|
[df49c60] | 420 | * Input parameters: |
---|
| 421 | * sc - pointer to the uti596_softc struct |
---|
| 422 | * wait_type - UTI596_NO_WAIT |
---|
[8ef3818] | 423 | * UTI596_WAIT |
---|
[df49c60] | 424 | * UTI596_WAIT_FOR_CU_ACCEPT |
---|
| 425 | * UTI596_WAIT_FOR_INITIALIZATION |
---|
| 426 | * UTI596_WAIT_FOR_STAT_C |
---|
| 427 | * |
---|
| 428 | * Output parameters: NONE |
---|
| 429 | * |
---|
| 430 | * Return value: |
---|
| 431 | * 0 if successful, -1 otherwise. |
---|
| 432 | */ |
---|
| 433 | static int uti596_wait( |
---|
| 434 | uti596_softc_ *sc, |
---|
[2a7e204] | 435 | uint8_t waitType |
---|
[df49c60] | 436 | ) |
---|
| 437 | { |
---|
| 438 | rtems_interval ticks_per_second, start_ticks, end_ticks; |
---|
[8ef3818] | 439 | |
---|
| 440 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_PER_SECOND, &ticks_per_second); |
---|
| 441 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
| 442 | end_ticks = start_ticks + ticks_per_second; |
---|
| 443 | |
---|
[df49c60] | 444 | switch( waitType ) { |
---|
[6128a4a] | 445 | |
---|
[df49c60] | 446 | case UTI596_NO_WAIT: |
---|
| 447 | return 0; |
---|
[5a23ca84] | 448 | |
---|
[8ef3818] | 449 | case UTI596_WAIT_FOR_CU_ACCEPT: |
---|
[df49c60] | 450 | do { |
---|
| 451 | if (sc->scb.command == 0) |
---|
| 452 | break; |
---|
| 453 | else |
---|
| 454 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
[6128a4a] | 455 | |
---|
[df49c60] | 456 | } while (start_ticks <= end_ticks); |
---|
[6128a4a] | 457 | |
---|
[df49c60] | 458 | if( (sc->scb.command != 0) || (start_ticks > end_ticks) ) { |
---|
| 459 | printf("i82596 timed out with status %x, cmd %x.\n", |
---|
| 460 | sc->scb.status, sc->scb.command); |
---|
| 461 | return -1; |
---|
| 462 | } |
---|
| 463 | else |
---|
| 464 | return 0; |
---|
[6128a4a] | 465 | |
---|
[df49c60] | 466 | case UTI596_WAIT_FOR_INITIALIZATION: |
---|
| 467 | do { |
---|
| 468 | if( !sc->iscp.busy ) |
---|
| 469 | break; |
---|
| 470 | else |
---|
| 471 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
| 472 | } while (start_ticks <= end_ticks); |
---|
| 473 | |
---|
| 474 | if (start_ticks > end_ticks ) { |
---|
| 475 | #ifdef DBG_WAIT |
---|
| 476 | printk(("uti596_setScpAndScb: Timed out\n" )) |
---|
| 477 | #endif |
---|
| 478 | return -1; |
---|
| 479 | } |
---|
| 480 | else { |
---|
| 481 | #ifdef DBG_WAIT |
---|
| 482 | printk(("uti596_setScpAndScb: Succeeded\n" )) |
---|
| 483 | #endif |
---|
| 484 | return 0; |
---|
| 485 | } |
---|
[5a23ca84] | 486 | |
---|
[df49c60] | 487 | case UTI596_WAIT_FOR_STAT_C: |
---|
| 488 | do { |
---|
| 489 | if( *sc->pCurrent_command_status & STAT_C ) |
---|
| 490 | break; |
---|
| 491 | else |
---|
| 492 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); |
---|
| 493 | } while (start_ticks <= end_ticks); |
---|
[6128a4a] | 494 | |
---|
[df49c60] | 495 | if (start_ticks > end_ticks ) { |
---|
| 496 | #ifdef DBG_WAIT |
---|
| 497 | printk(("uti596_initMem: timed out - STAT_C not obtained\n" )) |
---|
| 498 | #endif |
---|
| 499 | return -1; |
---|
| 500 | } |
---|
| 501 | else { |
---|
| 502 | #ifdef DBG_WAIT |
---|
| 503 | printk(("uti596_initMem: STAT_C obtained OK\n" )) |
---|
| 504 | #endif |
---|
| 505 | return 0; |
---|
| 506 | } |
---|
| 507 | } |
---|
| 508 | return -1; |
---|
| 509 | } |
---|
[6128a4a] | 510 | |
---|
[df49c60] | 511 | /* |
---|
| 512 | * uti596_issueCA |
---|
| 513 | * |
---|
| 514 | * Issue a Channel Attention command. Possibly wait for the |
---|
| 515 | * command to start or complete. |
---|
[6128a4a] | 516 | * |
---|
[df49c60] | 517 | * Input parameters: |
---|
| 518 | * sc - pointer to the uti596_softc |
---|
| 519 | * wait_type - UTI596_NO_WAIT |
---|
| 520 | * UTI596_WAIT_BEGIN |
---|
| 521 | * UTI596_WAIT_COMPLETION |
---|
| 522 | * |
---|
| 523 | * Output parameters: NONE |
---|
| 524 | * |
---|
| 525 | * Return value: |
---|
| 526 | * 0 if successful, -1 otherwise. |
---|
| 527 | */ |
---|
| 528 | static int uti596_issueCA( |
---|
| 529 | uti596_softc_ *sc, |
---|
[2a7e204] | 530 | uint8_t waitType |
---|
[df49c60] | 531 | ) |
---|
| 532 | { |
---|
| 533 | /* Issue Channel Attention */ |
---|
[5a23ca84] | 534 | i82596->chan_attn = 0x00000000; |
---|
[6128a4a] | 535 | |
---|
[df49c60] | 536 | return (uti596_wait ( sc, waitType )); |
---|
[5a23ca84] | 537 | } |
---|
| 538 | |
---|
[df49c60] | 539 | /* |
---|
| 540 | * uti596_addCmd |
---|
[6128a4a] | 541 | * |
---|
[df49c60] | 542 | * Add a uti596_cmd onto the end of the CBL command chain, |
---|
| 543 | * or to the start if the chain is empty. |
---|
[6128a4a] | 544 | * |
---|
[df49c60] | 545 | * Input parameters: |
---|
| 546 | * pCmd - a pointer to the command to be added. |
---|
[5a23ca84] | 547 | * |
---|
[6128a4a] | 548 | * Output parameters: NONE |
---|
[5a23ca84] | 549 | * |
---|
[df49c60] | 550 | * Return value: NONE |
---|
| 551 | */ |
---|
| 552 | static void uti596_addCmd( |
---|
| 553 | i596_cmd *pCmd |
---|
| 554 | ) |
---|
| 555 | { |
---|
| 556 | ISR_Level level; |
---|
| 557 | |
---|
| 558 | #ifdef DBG_ADD_CMD |
---|
| 559 | printk(("uti596_addCmd: Adding command 0x%x\n", pCmd -> command )) |
---|
| 560 | #endif |
---|
| 561 | |
---|
| 562 | /* Mark command as last in list, to return an interrupt */ |
---|
| 563 | pCmd->command |= (CMD_EOL | CMD_INTR ); |
---|
| 564 | pCmd->status = 0; |
---|
| 565 | pCmd->next = I596_NULL; |
---|
| 566 | |
---|
| 567 | _ISR_Disable(level); |
---|
[6128a4a] | 568 | |
---|
[df49c60] | 569 | if (uti596_softc.pCmdHead == I596_NULL) { |
---|
| 570 | uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = pCmd; |
---|
| 571 | uti596_softc.scb.cmd_pointer = word_swap ((unsigned long)pCmd); |
---|
| 572 | |
---|
| 573 | uti596_wait ( &uti596_softc, UTI596_WAIT_FOR_CU_ACCEPT ); |
---|
| 574 | uti596_softc.scb.command = CUC_START; |
---|
| 575 | uti596_issueCA ( &uti596_softc, UTI596_NO_WAIT ); |
---|
[6128a4a] | 576 | |
---|
[df49c60] | 577 | _ISR_Enable(level); |
---|
| 578 | } |
---|
| 579 | else { |
---|
| 580 | uti596_softc.pCmdTail->next = (i596_cmd *) word_swap ((unsigned long)pCmd); |
---|
| 581 | uti596_softc.pCmdTail = pCmd; |
---|
| 582 | _ISR_Enable(level); |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | #ifdef DBG_ADD_CMD |
---|
| 586 | printk(("uti596_addCmd: Scb status & command 0x%x 0x%x\n", |
---|
| 587 | uti596_softc.scb.status, |
---|
| 588 | uti596_softc.scb.command )) |
---|
| 589 | #endif |
---|
| 590 | } |
---|
| 591 | |
---|
| 592 | /* |
---|
| 593 | * uti596_addPolledCmd |
---|
[6128a4a] | 594 | * |
---|
[df49c60] | 595 | * Add a single uti596_cmd to the end of the command block list |
---|
| 596 | * for processing, send a CU_START and wait for its acceptance |
---|
[6128a4a] | 597 | * |
---|
[df49c60] | 598 | * Input parameters: |
---|
| 599 | * sc - a pointer to the uti596_softc struct |
---|
[5a23ca84] | 600 | * |
---|
[df49c60] | 601 | * Output parameters: NONE |
---|
[5a23ca84] | 602 | * |
---|
[df49c60] | 603 | * Return value: NONE |
---|
| 604 | */ |
---|
| 605 | void uti596_addPolledCmd( |
---|
| 606 | i596_cmd *pCmd |
---|
[5a23ca84] | 607 | ) |
---|
| 608 | { |
---|
| 609 | |
---|
[df49c60] | 610 | #ifdef DBG_ADD_CMD |
---|
| 611 | printk(("uti596_addPolledCmd: Adding command 0x%x\n", pCmd -> command )) |
---|
| 612 | #endif |
---|
[5a23ca84] | 613 | |
---|
[df49c60] | 614 | pCmd->status = 0; |
---|
| 615 | pCmd->command |= CMD_EOL ; /* only command in list*/ |
---|
| 616 | pCmd->next = I596_NULL; |
---|
[5a23ca84] | 617 | |
---|
[df49c60] | 618 | uti596_wait ( &uti596_softc, UTI596_WAIT_FOR_CU_ACCEPT ); |
---|
[5a23ca84] | 619 | |
---|
[df49c60] | 620 | uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = pCmd; |
---|
| 621 | uti596_softc.scb.cmd_pointer = word_swap((unsigned long)pCmd); |
---|
| 622 | uti596_softc.scb.command = CUC_START; |
---|
| 623 | uti596_issueCA ( &uti596_softc, UTI596_WAIT_FOR_CU_ACCEPT ); |
---|
[5a23ca84] | 624 | |
---|
[df49c60] | 625 | uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = I596_NULL; |
---|
| 626 | uti596_softc.scb.cmd_pointer = (unsigned long) I596_NULL; |
---|
[5a23ca84] | 627 | |
---|
[df49c60] | 628 | #ifdef DBG_ADD_CMD |
---|
| 629 | printk(("uti596_addPolledCmd: Scb status & command 0x%x 0x%x\n", |
---|
| 630 | uti596_softc.scb.status, |
---|
| 631 | uti596_softc.scb.command )) |
---|
| 632 | #endif |
---|
| 633 | } |
---|
[5a23ca84] | 634 | |
---|
[d2ae273] | 635 | /* currently unused by RTEMS */ |
---|
| 636 | #if 0 |
---|
[df49c60] | 637 | /* |
---|
| 638 | * uti596_CU_dump |
---|
[6128a4a] | 639 | * |
---|
[df49c60] | 640 | * Dump the LANC 82596 registers |
---|
| 641 | * The outcome is the same as the portDump() but executed |
---|
| 642 | * via the CU instead of via a PORT access. |
---|
[6128a4a] | 643 | * |
---|
[df49c60] | 644 | * Input parameters: |
---|
| 645 | * drp - a pointer to a i596_dump_result structure. |
---|
| 646 | * |
---|
| 647 | * Output parameters: NONE |
---|
| 648 | * |
---|
| 649 | * Return value: NONE |
---|
| 650 | */ |
---|
| 651 | static void uti596_CU_dump ( i596_dump_result * drp) |
---|
[5a23ca84] | 652 | { |
---|
[df49c60] | 653 | i596_dump dumpCmd; |
---|
[5a23ca84] | 654 | |
---|
[df49c60] | 655 | dumpCmd.cmd.command = CmdDump; |
---|
| 656 | dumpCmd.cmd.next = I596_NULL; |
---|
| 657 | dumpCmd.pData = (char *) drp; |
---|
| 658 | uti596_softc.cmdOk = 0; |
---|
| 659 | uti596_addCmd ( (i596_cmd *) &dumpCmd ); |
---|
[5a23ca84] | 660 | |
---|
[df49c60] | 661 | } |
---|
[d2ae273] | 662 | #endif |
---|
[5a23ca84] | 663 | |
---|
[df49c60] | 664 | /* |
---|
| 665 | * uti596_dump_scb |
---|
[6128a4a] | 666 | * |
---|
[df49c60] | 667 | * Dump the system control block |
---|
| 668 | * This function expands to nothing when using interrupt driven I/O |
---|
[6128a4a] | 669 | * |
---|
[df49c60] | 670 | * Input parameters: NONE |
---|
| 671 | * |
---|
| 672 | * Output parameters: NONE |
---|
| 673 | * |
---|
| 674 | * Return value: NONE |
---|
| 675 | */ |
---|
| 676 | static void uti596_dump_scb ( void ) |
---|
| 677 | { |
---|
| 678 | printk(("status 0x%x\n",uti596_softc.scb.status)) |
---|
| 679 | printk(("command 0x%x\n",uti596_softc.scb.command)) |
---|
| 680 | printk(("cmd 0x%x\n",(int)uti596_softc.scb.pCmd)) |
---|
| 681 | printk(("rfd 0x%x\n",(int)uti596_softc.scb.pRfd)) |
---|
| 682 | printk(("crc_err 0x%x\n",uti596_softc.scb.crc_err)) |
---|
| 683 | printk(("align_err 0x%x\n",uti596_softc.scb.align_err)) |
---|
| 684 | printk(("resource_err 0x%x\n",uti596_softc.scb.resource_err )) |
---|
| 685 | printk(("over_err 0x%x\n",uti596_softc.scb.over_err)) |
---|
| 686 | printk(("rcvdt_err 0x%x\n",uti596_softc.scb.rcvdt_err)) |
---|
| 687 | printk(("short_err 0x%x\n",uti596_softc.scb.short_err)) |
---|
| 688 | printk(("t_on 0x%x\n",uti596_softc.scb.t_on)) |
---|
| 689 | printk(("t_off 0x%x\n",uti596_softc.scb.t_off)) |
---|
[5a23ca84] | 690 | } |
---|
| 691 | |
---|
[df49c60] | 692 | /* |
---|
| 693 | * uti596_setScpAndScb |
---|
[5a23ca84] | 694 | * |
---|
[df49c60] | 695 | * Issue the first channel attention after reset and wait for the busy |
---|
| 696 | * field to clear in the iscp. |
---|
[5a23ca84] | 697 | * |
---|
[df49c60] | 698 | * Input parameters: |
---|
| 699 | * sc - pointer to the global uti596_softc |
---|
[5a23ca84] | 700 | * |
---|
[df49c60] | 701 | * Output parameters: NONE |
---|
| 702 | * |
---|
| 703 | * Return value: |
---|
| 704 | * 0 if successful, -1 otherwise. |
---|
| 705 | */ |
---|
| 706 | static int uti596_setScpAndScb( |
---|
| 707 | uti596_softc_ * sc |
---|
[5a23ca84] | 708 | ) |
---|
| 709 | { |
---|
[df49c60] | 710 | /* set the busy flag in the iscp */ |
---|
| 711 | sc->iscp.busy = 1; |
---|
[5a23ca84] | 712 | |
---|
[df49c60] | 713 | /* the command block list (CBL) is empty */ |
---|
| 714 | sc->scb.command = 0; |
---|
| 715 | sc->scb.cmd_pointer = (unsigned long) I596_NULL; /* all 1's */ |
---|
| 716 | sc->pCmdHead = sc->scb.pCmd = I596_NULL; /* all 1's */ |
---|
[5a23ca84] | 717 | |
---|
[df49c60] | 718 | uti596_writePortFunction( sc->pScp, UTI596_SCP_PORT_FUNCTION ); |
---|
[6128a4a] | 719 | |
---|
[df49c60] | 720 | /* Issue CA: pass the scb address to the 596 */ |
---|
| 721 | return ( uti596_issueCA ( sc, UTI596_WAIT_FOR_INITIALIZATION ) ); |
---|
| 722 | } |
---|
[5a23ca84] | 723 | |
---|
[df49c60] | 724 | /* |
---|
| 725 | * uti596_diagnose |
---|
[6128a4a] | 726 | * |
---|
[df49c60] | 727 | * Send a diagnose command to the CU |
---|
[6128a4a] | 728 | * |
---|
[df49c60] | 729 | * Input parameters: NONE |
---|
| 730 | * |
---|
| 731 | * Output parameters: NONE |
---|
| 732 | * |
---|
| 733 | * Return value: |
---|
| 734 | * 0 if successful, -1 otherwise |
---|
| 735 | */ |
---|
| 736 | static int uti596_diagnose( void ) |
---|
| 737 | { |
---|
| 738 | i596_cmd diagnose; |
---|
[5a23ca84] | 739 | |
---|
[df49c60] | 740 | diagnose.command = CmdDiagnose; |
---|
| 741 | diagnose.status = 0; |
---|
[db9ae70] | 742 | uti596_softc.pCurrent_command_status = (unsigned short *)&diagnose.status; |
---|
[df49c60] | 743 | uti596_addPolledCmd(&diagnose); |
---|
| 744 | return (uti596_wait ( &uti596_softc, UTI596_WAIT_FOR_STAT_C )); |
---|
[5a23ca84] | 745 | |
---|
[df49c60] | 746 | #ifdef DBG_INIT |
---|
| 747 | printk(("Status diagnostic: 0xa000 is a success ... 0x%2.2x\n", diagnose.status)) |
---|
| 748 | #endif |
---|
| 749 | } |
---|
[5a23ca84] | 750 | |
---|
[df49c60] | 751 | /* |
---|
| 752 | * uti596_configure |
---|
[6128a4a] | 753 | * |
---|
[df49c60] | 754 | * Send the CU a configure command with the desired |
---|
| 755 | * configuration structure |
---|
[6128a4a] | 756 | * |
---|
[df49c60] | 757 | * Input parameters: |
---|
| 758 | * sc - a pointer to the uti596_softc struct |
---|
| 759 | * |
---|
| 760 | * Output parameters: NONE |
---|
| 761 | * |
---|
| 762 | * Return value: |
---|
| 763 | * 0 if successful, -1 otherwise |
---|
| 764 | */ |
---|
[6128a4a] | 765 | static int uti596_configure ( |
---|
[df49c60] | 766 | uti596_softc_ * sc |
---|
| 767 | ) |
---|
| 768 | { |
---|
| 769 | sc->set_conf.cmd.command = CmdConfigure; |
---|
[db9ae70] | 770 | memcpy ( (void *)sc->set_conf.data, uti596initSetup, 14); |
---|
[df49c60] | 771 | uti596_addPolledCmd( (i596_cmd *) &sc->set_conf); |
---|
[5a23ca84] | 772 | |
---|
[df49c60] | 773 | /* Poll for successful command completion */ |
---|
[db9ae70] | 774 | sc->pCurrent_command_status = (unsigned short *)&(sc->set_conf.cmd.status); |
---|
[df49c60] | 775 | return ( uti596_wait ( sc, UTI596_WAIT_FOR_STAT_C ) ); |
---|
| 776 | } |
---|
[5a23ca84] | 777 | |
---|
[df49c60] | 778 | /* |
---|
| 779 | * uti596_IAsetup |
---|
[6128a4a] | 780 | * |
---|
[df49c60] | 781 | * Send the CU an Individual Address setup command with |
---|
| 782 | * the ethernet hardware address |
---|
[6128a4a] | 783 | * |
---|
[df49c60] | 784 | * Input parameters: |
---|
| 785 | * sc - a pointer to the uti596_softc struct |
---|
| 786 | * |
---|
| 787 | * Output parameters: NONE |
---|
| 788 | * |
---|
| 789 | * Return value: |
---|
| 790 | * 0 if successful, -1 otherwise |
---|
| 791 | */ |
---|
| 792 | static int uti596_IAsetup ( |
---|
| 793 | uti596_softc_ * sc |
---|
| 794 | ) |
---|
| 795 | { |
---|
| 796 | int i; |
---|
[6128a4a] | 797 | |
---|
[df49c60] | 798 | sc->set_add.cmd.command = CmdSASetup; |
---|
| 799 | for ( i=0; i<6; i++) { |
---|
| 800 | sc->set_add.data[i]=sc->arpcom.ac_enaddr[i]; |
---|
| 801 | } |
---|
| 802 | sc->cmdOk = 0; |
---|
| 803 | uti596_addPolledCmd((i596_cmd *)&sc->set_add); |
---|
[5a23ca84] | 804 | |
---|
[df49c60] | 805 | /* Poll for successful command completion */ |
---|
[db9ae70] | 806 | sc->pCurrent_command_status = (unsigned short *)&(sc->set_add.cmd.status); |
---|
[df49c60] | 807 | return ( uti596_wait ( sc, UTI596_WAIT_FOR_STAT_C ) ); |
---|
| 808 | } |
---|
[5a23ca84] | 809 | |
---|
[df49c60] | 810 | /* |
---|
| 811 | * uti596_initTBD |
---|
[6128a4a] | 812 | * |
---|
[df49c60] | 813 | * Initialize transmit buffer descriptors |
---|
| 814 | * dynamically allocate mem for the number of tbd's required |
---|
[6128a4a] | 815 | * |
---|
[df49c60] | 816 | * Input parameters: |
---|
| 817 | * sc - a pointer to the uti596_softc struct |
---|
| 818 | * |
---|
| 819 | * Output parameters: NONE |
---|
| 820 | * |
---|
| 821 | * Return value: |
---|
| 822 | * 0 if successful, -1 otherwise |
---|
| 823 | */ |
---|
| 824 | static int uti596_initTBD ( uti596_softc_ * sc ) |
---|
| 825 | { |
---|
| 826 | int i; |
---|
| 827 | i596_tbd *pTbd, *pPrev; |
---|
| 828 | |
---|
| 829 | /* Set up a transmit command with a tbd ready */ |
---|
| 830 | sc->pLastUnkRFD = I596_NULL; |
---|
| 831 | sc->pTxCmd = (i596_tx *) calloc (1,sizeof (struct i596_tx) ); |
---|
| 832 | sc->pTbd = (i596_tbd *) calloc (1,sizeof (struct i596_tbd) ); |
---|
| 833 | if ((sc->pTxCmd == NULL) || (sc->pTbd == NULL)) { |
---|
| 834 | return -1; |
---|
| 835 | } |
---|
| 836 | sc->pTxCmd->pTbd = (i596_tbd *) word_swap ((unsigned long) sc->pTbd); |
---|
| 837 | sc->pTxCmd->cmd.command = CMD_FLEX|CmdTx; |
---|
| 838 | sc->pTxCmd->pad = 0; |
---|
| 839 | sc->pTxCmd->count = 0; /* all bytes are in list of TBD's */ |
---|
| 840 | |
---|
| 841 | pPrev = pTbd = sc->pTbd; |
---|
[5a23ca84] | 842 | |
---|
[df49c60] | 843 | /* Allocate a linked list of tbd's each with it's 'next' field written |
---|
| 844 | * with upper and lower words swapped (for big endian), and mark the end. |
---|
| 845 | */ |
---|
| 846 | for ( i=0; i<sc->txBdCount; i++) { |
---|
| 847 | if ( (pTbd = (i596_tbd *) calloc (1,sizeof (struct i596_tbd) )) == NULL ) { |
---|
| 848 | return -1; |
---|
| 849 | } |
---|
| 850 | pPrev->next = (i596_tbd *) word_swap ((unsigned long) pTbd); |
---|
| 851 | pPrev = pTbd; |
---|
| 852 | } |
---|
| 853 | pTbd->next = I596_NULL; |
---|
| 854 | return 0; |
---|
[5a23ca84] | 855 | } |
---|
| 856 | |
---|
[df49c60] | 857 | /* |
---|
| 858 | * uti596_initRFA |
---|
[6128a4a] | 859 | * |
---|
[df49c60] | 860 | * Initialize the Receive Frame Area |
---|
| 861 | * dynamically allocate mem for the number of rfd's required |
---|
[6128a4a] | 862 | * |
---|
[df49c60] | 863 | * Input parameters: |
---|
| 864 | * sc - a pointer to the uti596_softc struct |
---|
[5a23ca84] | 865 | * |
---|
[df49c60] | 866 | * Output parameters: NONE |
---|
| 867 | * |
---|
| 868 | * Return value: |
---|
| 869 | * # of buffer descriptors successfully allocated |
---|
| 870 | */ |
---|
| 871 | static int uti596_initRFA( int num ) |
---|
[5a23ca84] | 872 | { |
---|
[df49c60] | 873 | i596_rfd *pRfd; |
---|
| 874 | int i = 0; |
---|
[5a23ca84] | 875 | |
---|
[df49c60] | 876 | #ifdef DBG_INIT |
---|
| 877 | printk(("uti596_initRFA: begins\n Requested frame descriptors ... %d.\n", num)) |
---|
| 878 | #endif |
---|
[5a23ca84] | 879 | |
---|
[df49c60] | 880 | /* |
---|
| 881 | * Create the first RFD in the RFA |
---|
| 882 | */ |
---|
| 883 | pRfd = (i596_rfd *) calloc (1, sizeof (struct i596_rfd)); |
---|
| 884 | if ( !pRfd ) { |
---|
| 885 | printk(("Can't allocate first buffer.\n")) |
---|
| 886 | return 0; |
---|
| 887 | } |
---|
| 888 | else { |
---|
| 889 | uti596_softc.countRFD = 1; |
---|
| 890 | uti596_softc.pBeginRFA = uti596_softc.pEndRFA = pRfd; |
---|
| 891 | } |
---|
[5a23ca84] | 892 | |
---|
[df49c60] | 893 | /* Create remaining RFDs */ |
---|
| 894 | for (i = 1; i < num; i++) { |
---|
| 895 | pRfd = (i596_rfd *) calloc (1, sizeof (struct i596_rfd) ); |
---|
| 896 | if ( pRfd != NULL ) { |
---|
| 897 | uti596_softc.countRFD++; /* update count */ |
---|
[6128a4a] | 898 | uti596_softc.pEndRFA->next = |
---|
[df49c60] | 899 | (i596_rfd *) word_swap ((unsigned long) pRfd); /* write the link */ |
---|
| 900 | uti596_softc.pEndRFA = pRfd; /* move the end */ |
---|
| 901 | } |
---|
| 902 | else { |
---|
| 903 | printk(("Can't allocate all buffers: only %d allocated\n", i)) |
---|
| 904 | break; |
---|
| 905 | } |
---|
| 906 | } /* end for */ |
---|
[5a23ca84] | 907 | |
---|
[df49c60] | 908 | uti596_softc.pEndRFA->next = I596_NULL; |
---|
| 909 | UTI_596_ASSERT(uti596_softc.countRFD == RX_BUF_COUNT,"INIT:WRONG RFD COUNT\n" ) |
---|
| 910 | |
---|
| 911 | #ifdef DBG_INIT |
---|
| 912 | printk (("uti596_initRFA: Head of RFA is buffer %p \n\ |
---|
| 913 | uti596_initRFA: End of RFA is buffer %p \n", |
---|
| 914 | uti596_softc.pBeginRFA, uti596_softc.pEndRFA )) |
---|
| 915 | #endif |
---|
[5a23ca84] | 916 | |
---|
[df49c60] | 917 | /* Walk and initialize the RFD's */ |
---|
| 918 | for ( pRfd = uti596_softc.pBeginRFA; |
---|
| 919 | pRfd != I596_NULL; |
---|
| 920 | pRfd = (i596_rfd *) word_swap ((unsigned long)pRfd->next) ) |
---|
| 921 | { |
---|
| 922 | pRfd->cmd = 0x0000; |
---|
| 923 | pRfd->stat = 0x0000; |
---|
| 924 | pRfd->pRbd = I596_NULL; |
---|
| 925 | pRfd->count = 0; /* number of bytes in buffer: usually less than size */ |
---|
| 926 | pRfd->size = 1532; /* was 1532; buffer size ( All RBD ) */ |
---|
| 927 | } /* end for */ |
---|
| 928 | |
---|
| 929 | /* mark the last RFD as the last one in the RDL */ |
---|
| 930 | uti596_softc.pEndRFA -> cmd = CMD_EOL; |
---|
| 931 | uti596_softc.pSavedRfdQueue = |
---|
| 932 | uti596_softc.pEndSavedQueue = I596_NULL; /* initially empty */ |
---|
| 933 | |
---|
| 934 | uti596_softc.savedCount = 0; |
---|
| 935 | uti596_softc.nop.cmd.command = CmdNOp; /* initialize the nop command */ |
---|
| 936 | |
---|
| 937 | return (i); /* the number of allocated buffers */ |
---|
| 938 | } |
---|
[5a23ca84] | 939 | |
---|
[df49c60] | 940 | /* |
---|
| 941 | * uti596_initMem |
---|
[6128a4a] | 942 | * |
---|
[df49c60] | 943 | * Initialize the 82596 memory structures for Tx and Rx |
---|
| 944 | * dynamically allocate mem for the number of tbd's required |
---|
[6128a4a] | 945 | * |
---|
[df49c60] | 946 | * Input parameters: |
---|
| 947 | * sc - a pointer to the uti596_softc struct |
---|
| 948 | * |
---|
| 949 | * Output parameters: NONE |
---|
| 950 | * |
---|
| 951 | * Return value: NONE |
---|
| 952 | */ |
---|
| 953 | void uti596_initMem( |
---|
| 954 | uti596_softc_ * sc |
---|
[5a23ca84] | 955 | ) |
---|
| 956 | { |
---|
[df49c60] | 957 | int i; |
---|
[5a23ca84] | 958 | |
---|
[df49c60] | 959 | #ifdef DBG_INIT |
---|
| 960 | printk(("uti596_initMem: begins\n")) |
---|
| 961 | #endif |
---|
[5a23ca84] | 962 | |
---|
[df49c60] | 963 | sc->resetDone = 0; |
---|
[5a23ca84] | 964 | |
---|
[df49c60] | 965 | /* |
---|
| 966 | * Set up receive frame area (RFA) |
---|
| 967 | */ |
---|
| 968 | i = uti596_initRFA( sc->rxBdCount ); |
---|
| 969 | if ( i < sc->rxBdCount ) { |
---|
| 970 | printk(("init_rfd: only able to allocate %d receive frame descriptors\n", i)) |
---|
[5a23ca84] | 971 | } |
---|
[6128a4a] | 972 | |
---|
[df49c60] | 973 | /* |
---|
| 974 | * Write the SCB with a pointer to the receive frame area |
---|
| 975 | * and keep a pointer for our use. |
---|
| 976 | */ |
---|
| 977 | sc->scb.rfd_pointer = word_swap((unsigned long)sc->pBeginRFA); |
---|
| 978 | sc->scb.pRfd = sc->pBeginRFA; |
---|
[5a23ca84] | 979 | |
---|
[df49c60] | 980 | /* |
---|
| 981 | * Diagnose the health of the board |
---|
| 982 | */ |
---|
| 983 | uti596_diagnose(); |
---|
[5a23ca84] | 984 | |
---|
[df49c60] | 985 | /* |
---|
| 986 | * Configure the 82596 |
---|
| 987 | */ |
---|
| 988 | uti596_configure( sc ); |
---|
[5a23ca84] | 989 | |
---|
[df49c60] | 990 | /* |
---|
| 991 | * Set up the Individual (hardware) Address |
---|
| 992 | */ |
---|
| 993 | uti596_IAsetup ( sc ); |
---|
[5a23ca84] | 994 | |
---|
[df49c60] | 995 | /* |
---|
| 996 | * Initialize the transmit buffer descriptors |
---|
| 997 | */ |
---|
| 998 | uti596_initTBD( sc ); |
---|
[5a23ca84] | 999 | |
---|
[df49c60] | 1000 | /* Padding used to fill short tx frames */ |
---|
| 1001 | memset ( &sc->zeroes, 0, 64); |
---|
[5a23ca84] | 1002 | |
---|
[df49c60] | 1003 | /* now need ISR */ |
---|
| 1004 | sc->resetDone = 1; |
---|
| 1005 | } |
---|
[5a23ca84] | 1006 | |
---|
[df49c60] | 1007 | /* |
---|
| 1008 | * uti596_initialize |
---|
| 1009 | * |
---|
| 1010 | * Reset the 82596 and initialize it with a new SCP. |
---|
[6128a4a] | 1011 | * |
---|
[df49c60] | 1012 | * Input parameters: |
---|
| 1013 | * sc - pointer to the uti596_softc |
---|
| 1014 | * |
---|
| 1015 | * Output parameters: NONE |
---|
| 1016 | * |
---|
| 1017 | * Return value: NONE |
---|
| 1018 | */ |
---|
| 1019 | void uti596_initialize( |
---|
| 1020 | uti596_softc_ *sc |
---|
| 1021 | ) |
---|
| 1022 | { |
---|
| 1023 | /* Reset the device. Stops it from doing whatever it might be doing. */ |
---|
| 1024 | uti596_portReset(); |
---|
[5a23ca84] | 1025 | |
---|
[df49c60] | 1026 | /* Get a new System Configuration Pointer */ |
---|
| 1027 | uti596_scp_alloc( sc ); |
---|
[5a23ca84] | 1028 | |
---|
[df49c60] | 1029 | /* write the SYSBUS: interrupt pin active high, LOCK disabled, |
---|
| 1030 | * internal triggering, linear mode |
---|
| 1031 | */ |
---|
| 1032 | sc->pScp->sysbus = 0x54; |
---|
[6128a4a] | 1033 | |
---|
[df49c60] | 1034 | /* provide the iscp to the scp, keep a pointer for our use */ |
---|
| 1035 | sc->pScp->iscp_pointer = word_swap((unsigned long)&sc->iscp); |
---|
| 1036 | sc->pScp->iscp = &sc->iscp; |
---|
[5a23ca84] | 1037 | |
---|
[df49c60] | 1038 | /* provide the scb to the iscp, keep a pointer for our use */ |
---|
| 1039 | sc->iscp.scb_pointer = word_swap((unsigned long)&sc->scb); |
---|
| 1040 | sc->iscp.scb = &sc->scb; |
---|
[5a23ca84] | 1041 | |
---|
[df49c60] | 1042 | #ifdef DBG_INIT |
---|
| 1043 | printk(("uti596_initialize: Starting i82596.\n")) |
---|
| 1044 | #endif |
---|
[5a23ca84] | 1045 | |
---|
[df49c60] | 1046 | /* Set up the 82596 */ |
---|
| 1047 | uti596_setScpAndScb( sc ); |
---|
[6128a4a] | 1048 | |
---|
[df49c60] | 1049 | /* clear the scb command word */ |
---|
| 1050 | sc->scb.command = 0; |
---|
| 1051 | } |
---|
[5a23ca84] | 1052 | |
---|
[df49c60] | 1053 | /* |
---|
| 1054 | * uti596_initialize_hardware |
---|
| 1055 | * |
---|
| 1056 | * Reset the 82596 and initialize it with a new SCP. Enable bus snooping. |
---|
| 1057 | * Install the interrupt handlers. |
---|
[6128a4a] | 1058 | * |
---|
[df49c60] | 1059 | * Input parameters: |
---|
| 1060 | * sc - pointer to the uti596_softc |
---|
| 1061 | * |
---|
| 1062 | * Output parameters: NONE |
---|
| 1063 | * |
---|
| 1064 | * Return value: NONE |
---|
| 1065 | */ |
---|
| 1066 | void uti596_initialize_hardware( |
---|
| 1067 | uti596_softc_ *sc |
---|
| 1068 | ) |
---|
| 1069 | { |
---|
| 1070 | rtems_isr_entry dummy; |
---|
[5a23ca84] | 1071 | |
---|
[df49c60] | 1072 | printk(("uti596_initialize_hardware: begins\n")) |
---|
[5a23ca84] | 1073 | |
---|
[df49c60] | 1074 | /* Get the PCCChip2 to assert bus snooping signals on behalf of the i82596 */ |
---|
| 1075 | pccchip2->LANC_berr_ctl = 0x40; |
---|
[5a23ca84] | 1076 | |
---|
[df49c60] | 1077 | uti596_initialize( sc ); |
---|
[6128a4a] | 1078 | |
---|
[df49c60] | 1079 | /* |
---|
| 1080 | * Configure interrupt control in PCCchip2 |
---|
| 1081 | */ |
---|
| 1082 | pccchip2->LANC_error = 0xff; /* clear status register */ |
---|
| 1083 | pccchip2->LANC_int_ctl = 0x5d; /* lvl 5, enabled, edge-sensitive rising */ |
---|
| 1084 | pccchip2->LANC_berr_ctl = 0x5d; /* bus error: lvl 5, enabled, snoop control |
---|
| 1085 | * will supply dirty data and leave dirty data |
---|
| 1086 | * on read access and sink any data on write |
---|
| 1087 | */ |
---|
[6128a4a] | 1088 | /* |
---|
[df49c60] | 1089 | * Install the interrupt handler |
---|
| 1090 | * calls rtems_interrupt_catch |
---|
[6128a4a] | 1091 | */ |
---|
[df49c60] | 1092 | dummy = (rtems_isr_entry) set_vector( uti596_DynamicInterruptHandler, 0x57, 1 ); |
---|
[5a23ca84] | 1093 | |
---|
[df49c60] | 1094 | /* Initialize the 82596 memory */ |
---|
| 1095 | uti596_initMem(sc); |
---|
[5a23ca84] | 1096 | |
---|
[df49c60] | 1097 | #ifdef DBG_INIT |
---|
| 1098 | printk(("uti596_initialize_hardware: After attach, status of board = 0x%x\n", sc->scb.status )) |
---|
| 1099 | #endif |
---|
| 1100 | } |
---|
[5a23ca84] | 1101 | |
---|
[df49c60] | 1102 | /* |
---|
| 1103 | * uti596_reset_hardware |
---|
| 1104 | * |
---|
| 1105 | * Reset the 82596 and initialize it with an SCP. |
---|
[6128a4a] | 1106 | * |
---|
[df49c60] | 1107 | * Input parameters: |
---|
| 1108 | * sc - pointer to the uti596_softc |
---|
| 1109 | * |
---|
| 1110 | * Output parameters: NONE |
---|
| 1111 | * |
---|
| 1112 | * Return value: NONE |
---|
| 1113 | */ |
---|
| 1114 | void uti596_reset_hardware( |
---|
| 1115 | uti596_softc_ *sc |
---|
| 1116 | ) |
---|
| 1117 | { |
---|
| 1118 | rtems_status_code status_code; |
---|
| 1119 | i596_cmd *pCmd; |
---|
[5a23ca84] | 1120 | |
---|
[df49c60] | 1121 | pCmd = sc->pCmdHead; /* This is a tx command for sure (99.99999%) */ |
---|
[5a23ca84] | 1122 | |
---|
[df49c60] | 1123 | /* the command block list (CBL) is empty */ |
---|
| 1124 | sc->scb.cmd_pointer = (unsigned long) I596_NULL; /* all 1's */ |
---|
| 1125 | sc->pCmdHead = sc->scb.pCmd = I596_NULL; /* all 1's */ |
---|
[5a23ca84] | 1126 | |
---|
[df49c60] | 1127 | #ifdef DBG_RESET |
---|
| 1128 | printk(("uti596_reset_hardware\n")) |
---|
| 1129 | #endif |
---|
| 1130 | uti596_initialize( sc ); |
---|
[6128a4a] | 1131 | |
---|
[df49c60] | 1132 | /* |
---|
| 1133 | * Wake the transmitter if needed. |
---|
| 1134 | */ |
---|
| 1135 | if ( sc->txDaemonTid && pCmd != I596_NULL ) { |
---|
| 1136 | printk(("****RESET: wakes transmitter!\n")) |
---|
| 1137 | status_code = rtems_event_send (sc->txDaemonTid, |
---|
| 1138 | INTERRUPT_EVENT); |
---|
[5a23ca84] | 1139 | |
---|
[df49c60] | 1140 | if ( status_code != RTEMS_SUCCESSFUL ) { |
---|
| 1141 | printk(("****ERROR:Could NOT send event to tid 0x%x : %s\n", |
---|
| 1142 | sc->txDaemonTid, rtems_status_text (status_code) )) |
---|
| 1143 | } |
---|
| 1144 | } |
---|
[5a23ca84] | 1145 | |
---|
[df49c60] | 1146 | #ifdef DBG_RESET |
---|
| 1147 | printk(("uti596_reset_hardware: After reset_hardware, status of board = 0x%x\n", sc->scb.status )) |
---|
| 1148 | #endif |
---|
| 1149 | } |
---|
[5a23ca84] | 1150 | |
---|
[df49c60] | 1151 | /* |
---|
| 1152 | * uti596_clearListStatus |
---|
[6128a4a] | 1153 | * |
---|
[df49c60] | 1154 | * Clear the stat fields for all RFDs |
---|
[6128a4a] | 1155 | * |
---|
[df49c60] | 1156 | * Input parameters: |
---|
| 1157 | * pRfd - a pointer to the head of the RFA |
---|
| 1158 | * |
---|
[6128a4a] | 1159 | * Output parameters: NONE |
---|
[df49c60] | 1160 | * |
---|
| 1161 | * Return value: NONE |
---|
| 1162 | */ |
---|
| 1163 | void uti596_clearListStatus( |
---|
| 1164 | i596_rfd *pRfd |
---|
| 1165 | ) |
---|
| 1166 | { |
---|
| 1167 | while ( pRfd != I596_NULL ) { |
---|
| 1168 | pRfd -> stat = 0; |
---|
| 1169 | pRfd = (i596_rfd *) word_swap((unsigned long)pRfd-> next); |
---|
| 1170 | } |
---|
| 1171 | } |
---|
[5a23ca84] | 1172 | |
---|
[df49c60] | 1173 | /* |
---|
| 1174 | * uti596_reset |
---|
[6128a4a] | 1175 | * |
---|
[df49c60] | 1176 | * Reset the 82596 and reconfigure |
---|
[6128a4a] | 1177 | * |
---|
[df49c60] | 1178 | * Input parameters: NONE |
---|
| 1179 | * |
---|
[6128a4a] | 1180 | * Output parameters: NONE |
---|
[df49c60] | 1181 | * |
---|
| 1182 | * Return value: NONE |
---|
| 1183 | */ |
---|
| 1184 | void uti596_reset( void ) |
---|
| 1185 | { |
---|
| 1186 | uti596_softc_ *sc = &uti596_softc; |
---|
[5a23ca84] | 1187 | |
---|
[df49c60] | 1188 | #ifdef DBG_RESET |
---|
| 1189 | printk(("uti596_reset: begin\n")) |
---|
| 1190 | #endif |
---|
[5a23ca84] | 1191 | |
---|
[df49c60] | 1192 | /* Wait for the CU to be available, then |
---|
| 1193 | * reset the ethernet hardware. Must re-config. |
---|
| 1194 | */ |
---|
| 1195 | sc->resetDone = 0; |
---|
| 1196 | uti596_wait ( sc, UTI596_WAIT_FOR_CU_ACCEPT ); |
---|
[6128a4a] | 1197 | uti596_reset_hardware ( &uti596_softc ); |
---|
[5a23ca84] | 1198 | |
---|
[df49c60] | 1199 | #ifdef DBG_RESET |
---|
| 1200 | uti596_diagnose(); |
---|
| 1201 | #endif |
---|
[5a23ca84] | 1202 | |
---|
[df49c60] | 1203 | /* |
---|
| 1204 | * Configure the 82596 |
---|
| 1205 | */ |
---|
| 1206 | uti596_configure( sc ); |
---|
[5a23ca84] | 1207 | |
---|
[df49c60] | 1208 | /* |
---|
| 1209 | * Set up the Individual (hardware) Address |
---|
| 1210 | */ |
---|
| 1211 | uti596_IAsetup ( sc ); |
---|
[5a23ca84] | 1212 | |
---|
[df49c60] | 1213 | sc->pCmdHead = sc->pCmdTail = sc->scb.pCmd = I596_NULL; |
---|
[5a23ca84] | 1214 | |
---|
[df49c60] | 1215 | /* restore the RFA */ |
---|
| 1216 | |
---|
| 1217 | if ( sc->pLastUnkRFD != I596_NULL ) { |
---|
| 1218 | sc-> pEndRFA = sc->pLastUnkRFD; /* The end position can be updated */ |
---|
| 1219 | sc-> pLastUnkRFD = I596_NULL; |
---|
[5a23ca84] | 1220 | } |
---|
| 1221 | |
---|
[df49c60] | 1222 | sc->pEndRFA->next = sc->pSavedRfdQueue; |
---|
| 1223 | if ( sc->pSavedRfdQueue != I596_NULL ) { |
---|
| 1224 | sc->pEndRFA = sc->pEndSavedQueue; |
---|
| 1225 | sc->pSavedRfdQueue = sc->pEndSavedQueue = I596_NULL; |
---|
| 1226 | sc -> countRFD = sc->rxBdCount ; |
---|
| 1227 | } |
---|
[5a23ca84] | 1228 | |
---|
[df49c60] | 1229 | /* Re-address the head of the RFA in the SCB */ |
---|
[6128a4a] | 1230 | sc->scb.pRfd = sc->pBeginRFA; |
---|
[df49c60] | 1231 | sc->scb.rfd_pointer = word_swap((unsigned long)sc->pBeginRFA); |
---|
[5a23ca84] | 1232 | |
---|
[df49c60] | 1233 | /* Clear the status of all RFDs */ |
---|
| 1234 | uti596_clearListStatus( sc->pBeginRFA ); |
---|
[5a23ca84] | 1235 | |
---|
[df49c60] | 1236 | printk(("uti596_reset: Starting NIC\n")) |
---|
[5a23ca84] | 1237 | |
---|
[df49c60] | 1238 | /* Start the receiver */ |
---|
| 1239 | sc->scb.command = RX_START; |
---|
| 1240 | sc->started = 1; /* assume that the start is accepted */ |
---|
| 1241 | sc->resetDone = 1; |
---|
| 1242 | uti596_issueCA ( sc, UTI596_WAIT_FOR_CU_ACCEPT ); |
---|
[6128a4a] | 1243 | |
---|
[df49c60] | 1244 | UTI_596_ASSERT(sc->pCmdHead == I596_NULL, "Reset: CMD not cleared\n") |
---|
[5a23ca84] | 1245 | |
---|
[df49c60] | 1246 | #ifdef DBG_RESET |
---|
| 1247 | printk(("uti596_reset: completed\n")) |
---|
| 1248 | #endif |
---|
| 1249 | } |
---|
[5a23ca84] | 1250 | |
---|
[df49c60] | 1251 | /* |
---|
| 1252 | * uti596_dequeue |
---|
[6128a4a] | 1253 | * |
---|
[df49c60] | 1254 | * Remove an RFD from the received fram queue |
---|
[6128a4a] | 1255 | * |
---|
[df49c60] | 1256 | * Input parameters: |
---|
| 1257 | * ppQ - a pointer to a i596_rfd pointer |
---|
| 1258 | * |
---|
[6128a4a] | 1259 | * Output parameters: NONE |
---|
[df49c60] | 1260 | * |
---|
| 1261 | * Return value: |
---|
| 1262 | * pRfd - a pointer to the dequeued RFD |
---|
| 1263 | */ |
---|
| 1264 | i596_rfd * uti596_dequeue( |
---|
| 1265 | i596_rfd ** ppQ |
---|
| 1266 | ) |
---|
| 1267 | { |
---|
| 1268 | ISR_Level level; |
---|
| 1269 | i596_rfd * pRfd; |
---|
[6128a4a] | 1270 | |
---|
[df49c60] | 1271 | _ISR_Disable(level); |
---|
[5a23ca84] | 1272 | |
---|
[df49c60] | 1273 | /* invalid address, or empty queue or emptied queue */ |
---|
| 1274 | if( ppQ == NULL || *ppQ == NULL || *ppQ == I596_NULL) { |
---|
| 1275 | _ISR_Enable(level); |
---|
| 1276 | return I596_NULL; |
---|
[5a23ca84] | 1277 | } |
---|
[6128a4a] | 1278 | |
---|
| 1279 | /* |
---|
[df49c60] | 1280 | * Point to the dequeued buffer, then |
---|
| 1281 | * adjust the queue pointer and detach the buffer |
---|
| 1282 | */ |
---|
[6128a4a] | 1283 | pRfd = *ppQ; |
---|
[df49c60] | 1284 | *ppQ = (i596_rfd *) word_swap ((unsigned long) pRfd->next); |
---|
| 1285 | pRfd->next = I596_NULL; /* unlink the rfd being returned */ |
---|
| 1286 | |
---|
| 1287 | _ISR_Enable(level); |
---|
| 1288 | return pRfd; |
---|
[5a23ca84] | 1289 | } |
---|
| 1290 | |
---|
[df49c60] | 1291 | /* |
---|
| 1292 | * uti596_append |
---|
[6128a4a] | 1293 | * |
---|
[df49c60] | 1294 | * Remove an RFD buffer from the RFA and tack it on to |
---|
| 1295 | * the received frame queue for processing. |
---|
[6128a4a] | 1296 | * |
---|
[df49c60] | 1297 | * Input parameters: |
---|
| 1298 | * ppQ - a pointer to the queue pointer |
---|
| 1299 | * pRfd - a pointer to the buffer to be returned |
---|
[5a23ca84] | 1300 | * |
---|
[6128a4a] | 1301 | * Output parameters: NONE |
---|
[5a23ca84] | 1302 | * |
---|
[df49c60] | 1303 | * Return value: NONE |
---|
[6128a4a] | 1304 | */ |
---|
[5a23ca84] | 1305 | |
---|
[df49c60] | 1306 | void uti596_append( |
---|
| 1307 | i596_rfd ** ppQ, |
---|
| 1308 | i596_rfd * pRfd |
---|
[5a23ca84] | 1309 | ) |
---|
| 1310 | { |
---|
| 1311 | |
---|
[df49c60] | 1312 | i596_rfd *p; |
---|
[5a23ca84] | 1313 | |
---|
[df49c60] | 1314 | if ( pRfd != NULL && pRfd != I596_NULL) { |
---|
| 1315 | pRfd -> next = I596_NULL; |
---|
| 1316 | pRfd -> cmd |= CMD_EOL; /* set EL bit */ |
---|
[5a23ca84] | 1317 | |
---|
[df49c60] | 1318 | if ( *ppQ == NULL || *ppQ == I596_NULL ) { |
---|
| 1319 | /* empty list */ |
---|
| 1320 | *ppQ = pRfd; |
---|
| 1321 | } |
---|
| 1322 | else { |
---|
| 1323 | /* walk to the end of the list */ |
---|
| 1324 | for ( p=*ppQ; |
---|
| 1325 | p->next != I596_NULL; |
---|
| 1326 | p=(i596_rfd *) word_swap ((unsigned long)p->next) ); |
---|
[5a23ca84] | 1327 | |
---|
[df49c60] | 1328 | /* append the rfd */ |
---|
| 1329 | p->cmd &= ~CMD_EOL; /* Clear EL bit at end */ |
---|
| 1330 | p->next = (i596_rfd *) word_swap ((unsigned long)pRfd); |
---|
| 1331 | } |
---|
| 1332 | } |
---|
| 1333 | else { |
---|
| 1334 | printk(("Illegal attempt to append: %p\n", pRfd)) |
---|
| 1335 | } |
---|
[5a23ca84] | 1336 | } |
---|
| 1337 | |
---|
[df49c60] | 1338 | /* |
---|
| 1339 | * uti596_supplyFD |
---|
[6128a4a] | 1340 | * |
---|
[df49c60] | 1341 | * Return a buffer (RFD) to the receive frame area (RFA). |
---|
| 1342 | * Call with interrupts disabled. |
---|
[6128a4a] | 1343 | * |
---|
[df49c60] | 1344 | * Input parameters: |
---|
| 1345 | * pRfd - a pointer to the buffer to be returned |
---|
[5a23ca84] | 1346 | * |
---|
[6128a4a] | 1347 | * Output parameters: NONE |
---|
[df49c60] | 1348 | * |
---|
| 1349 | * Return value: NONE |
---|
| 1350 | */ |
---|
| 1351 | void uti596_supplyFD ( |
---|
| 1352 | i596_rfd * pRfd |
---|
[5a23ca84] | 1353 | ) |
---|
| 1354 | { |
---|
[df49c60] | 1355 | i596_rfd *pLastRfd; |
---|
[5a23ca84] | 1356 | |
---|
[df49c60] | 1357 | UTI_596_ASSERT(pRfd != I596_NULL, "Supplying NULL RFD!\n") |
---|
[6128a4a] | 1358 | |
---|
[df49c60] | 1359 | pRfd -> cmd = CMD_EOL; |
---|
| 1360 | pRfd -> pRbd = I596_NULL; |
---|
| 1361 | pRfd -> next = I596_NULL; |
---|
| 1362 | pRfd -> stat = 0x0000; /* clear STAT_C and STAT_B bits */ |
---|
[5a23ca84] | 1363 | |
---|
[df49c60] | 1364 | /* |
---|
| 1365 | * Check if the list is empty: |
---|
| 1366 | */ |
---|
| 1367 | if ( uti596_softc.pBeginRFA == I596_NULL ) { |
---|
[5a23ca84] | 1368 | |
---|
[df49c60] | 1369 | /* Start a list with one entry */ |
---|
| 1370 | uti596_softc.pBeginRFA = uti596_softc.pEndRFA = pRfd; |
---|
| 1371 | UTI_596_ASSERT(uti596_softc.countRFD == 0, "Null begin, but non-zero count\n") |
---|
| 1372 | if ( uti596_softc.pLastUnkRFD != I596_NULL ) { |
---|
| 1373 | printk(("LastUnkRFD is NOT NULL!!\n")) |
---|
| 1374 | } |
---|
| 1375 | uti596_softc.countRFD = 1; |
---|
| 1376 | return; |
---|
| 1377 | } |
---|
[6128a4a] | 1378 | |
---|
[df49c60] | 1379 | /* |
---|
| 1380 | * Check if the last RFD is used/read by the 596. |
---|
| 1381 | */ |
---|
| 1382 | pLastRfd = uti596_softc.pEndRFA; |
---|
[5a23ca84] | 1383 | |
---|
[df49c60] | 1384 | /* C = complete, B = busy (prefetched) */ |
---|
| 1385 | if ( pLastRfd != I596_NULL && ! (pLastRfd -> stat & ( STAT_C | STAT_B ) )) { |
---|
[6128a4a] | 1386 | |
---|
[df49c60] | 1387 | /* |
---|
| 1388 | * Not yet too late to add it |
---|
| 1389 | */ |
---|
| 1390 | pLastRfd -> next = (i596_rfd *) word_swap ((unsigned long)pRfd); |
---|
| 1391 | pLastRfd -> cmd &= ~CMD_EOL; /* RESET_EL : reset EL bit to 0 */ |
---|
| 1392 | uti596_softc.countRFD++; /* Lets assume we add it successfully |
---|
| 1393 | If not, the RFD may be used, and may |
---|
| 1394 | decrement countRFD < 0 !! */ |
---|
| 1395 | /* |
---|
| 1396 | * Check if the last RFD was used while appending. |
---|
| 1397 | */ |
---|
| 1398 | if ( pLastRfd -> stat & ( STAT_C | STAT_B ) ) { /* completed or was prefetched */ |
---|
| 1399 | /* |
---|
| 1400 | * Either the EL bit of the last rfd has been read by the 82596, |
---|
| 1401 | * and it will stop after reception,( true when RESET_EL not reached ) or |
---|
| 1402 | * the EL bit was NOT read by the 82596 and it will use the linked |
---|
| 1403 | * RFD for the next reception. ( true when RESET_EL was reached ) |
---|
| 1404 | * So, it is unknown whether or not the linked rfd will be used. |
---|
| 1405 | * Therefore, the end of list CANNOT be updated. |
---|
| 1406 | */ |
---|
| 1407 | UTI_596_ASSERT ( uti596_softc.pLastUnkRFD == I596_NULL, "Too many Unk RFD's\n" ) |
---|
| 1408 | uti596_softc.pLastUnkRFD = pRfd; |
---|
| 1409 | return; |
---|
| 1410 | } |
---|
| 1411 | else { |
---|
| 1412 | /* |
---|
| 1413 | * The RFD being added was not touched by the 82596 |
---|
| 1414 | */ |
---|
| 1415 | if (uti596_softc.pLastUnkRFD != I596_NULL ) { |
---|
[5a23ca84] | 1416 | |
---|
[db9ae70] | 1417 | uti596_append((i596_rfd **)&uti596_softc.pSavedRfdQueue, pRfd); /* Only here! saved Q */ |
---|
[df49c60] | 1418 | uti596_softc.pEndSavedQueue = pRfd; |
---|
| 1419 | uti596_softc.savedCount++; |
---|
| 1420 | uti596_softc.countRFD--; |
---|
[5a23ca84] | 1421 | |
---|
[df49c60] | 1422 | } |
---|
| 1423 | else { |
---|
[6128a4a] | 1424 | |
---|
[df49c60] | 1425 | uti596_softc.pEndRFA = pRfd; /* the RFA has been extended */ |
---|
[6128a4a] | 1426 | |
---|
[df49c60] | 1427 | if ( ( uti596_softc.scb.status & SCB_STAT_RNR || |
---|
| 1428 | uti596_softc.scb.status & RU_NO_RESOURCES ) && |
---|
| 1429 | uti596_softc.countRFD > 1 ) { |
---|
[6128a4a] | 1430 | |
---|
[df49c60] | 1431 | /* Ensure that beginRFA is not EOL */ |
---|
| 1432 | uti596_softc.pBeginRFA -> cmd &= ~CMD_EOL; |
---|
[5a23ca84] | 1433 | |
---|
[df49c60] | 1434 | UTI_596_ASSERT(uti596_softc.pEndRFA -> next == I596_NULL, "supply: List buggered\n") |
---|
| 1435 | UTI_596_ASSERT(uti596_softc.pEndRFA -> cmd & CMD_EOL, "supply: No EOL at end.\n") |
---|
| 1436 | UTI_596_ASSERT(uti596_softc.scb.command == 0, "Supply: scb command must be zero\n") |
---|
[5a23ca84] | 1437 | |
---|
[df49c60] | 1438 | #ifdef DBG_MEM |
---|
| 1439 | printk(("uti596_supplyFD: starting receiver")) |
---|
| 1440 | #endif |
---|
[5a23ca84] | 1441 | |
---|
[df49c60] | 1442 | /* start the receiver */ |
---|
| 1443 | UTI_596_ASSERT(uti596_softc.pBeginRFA != I596_NULL, "rx start w/ NULL begin! \n") |
---|
| 1444 | uti596_softc.scb.pRfd = uti596_softc.pBeginRFA; |
---|
| 1445 | uti596_softc.scb.rfd_pointer = word_swap ((unsigned long) uti596_softc.pBeginRFA); |
---|
[6128a4a] | 1446 | |
---|
[df49c60] | 1447 | /* Don't ack RNR! The receiver should be stopped in this case */ |
---|
| 1448 | uti596_softc.scb.command = RX_START | SCB_STAT_RNR; |
---|
[6128a4a] | 1449 | |
---|
[df49c60] | 1450 | UTI_596_ASSERT( !(uti596_softc.scb.status & SCB_STAT_FR),"FRAME RECEIVED INT COMING!\n") |
---|
[5a23ca84] | 1451 | |
---|
[df49c60] | 1452 | /* send CA signal */ |
---|
| 1453 | uti596_issueCA ( &uti596_softc, UTI596_NO_WAIT ); |
---|
| 1454 | } |
---|
| 1455 | } |
---|
| 1456 | return; |
---|
| 1457 | } |
---|
| 1458 | } |
---|
| 1459 | else { |
---|
| 1460 | /* |
---|
| 1461 | * too late , pLastRfd in use ( or NULL ), |
---|
| 1462 | * in either case, EL bit has been read, and RNR condition will occur |
---|
| 1463 | */ |
---|
[db9ae70] | 1464 | uti596_append( (i596_rfd **)&uti596_softc.pSavedRfdQueue, pRfd); /* save it for RNR */ |
---|
[5a23ca84] | 1465 | |
---|
[df49c60] | 1466 | uti596_softc.pEndSavedQueue = pRfd; /* reset end of saved queue */ |
---|
| 1467 | uti596_softc.savedCount++; |
---|
[5a23ca84] | 1468 | |
---|
[df49c60] | 1469 | return; |
---|
| 1470 | } |
---|
[5a23ca84] | 1471 | } |
---|
| 1472 | |
---|
[df49c60] | 1473 | /* |
---|
| 1474 | * send_packet |
---|
[6128a4a] | 1475 | * |
---|
[df49c60] | 1476 | * Send a raw ethernet packet, add a |
---|
| 1477 | * transmit command to the CBL |
---|
[6128a4a] | 1478 | * |
---|
[df49c60] | 1479 | * Input parameters: |
---|
| 1480 | * ifp - a pointer to the ifnet structure |
---|
| 1481 | * m - a pointer to the mbuf being sent |
---|
[5a23ca84] | 1482 | * |
---|
[6128a4a] | 1483 | * Output parameters: NONE |
---|
[5a23ca84] | 1484 | * |
---|
[df49c60] | 1485 | * Return value: NONE |
---|
| 1486 | */ |
---|
| 1487 | void send_packet( |
---|
| 1488 | struct ifnet *ifp, struct mbuf *m |
---|
[5a23ca84] | 1489 | ) |
---|
| 1490 | { |
---|
[df49c60] | 1491 | i596_tbd *pPrev = I596_NULL; |
---|
| 1492 | i596_tbd *pRemainingTbdList; |
---|
| 1493 | i596_tbd *pTbd; |
---|
| 1494 | struct mbuf *n, *input_m = m; |
---|
| 1495 | uti596_softc_ *sc = ifp->if_softc; |
---|
| 1496 | struct mbuf *l = NULL; |
---|
| 1497 | unsigned int length = 0; |
---|
| 1498 | rtems_status_code status; |
---|
| 1499 | int bd_count = 0; |
---|
| 1500 | rtems_event_set events; |
---|
[5a23ca84] | 1501 | |
---|
[df49c60] | 1502 | /* |
---|
| 1503 | * For all mbufs in the chain, |
---|
| 1504 | * fill a transmit buffer descriptor for each |
---|
| 1505 | */ |
---|
| 1506 | pTbd = (i596_tbd*) word_swap ((unsigned long)sc->pTxCmd->pTbd); |
---|
[5a23ca84] | 1507 | |
---|
[df49c60] | 1508 | do { |
---|
| 1509 | if (m->m_len) { |
---|
| 1510 | /* |
---|
| 1511 | * Fill in the buffer descriptor |
---|
| 1512 | */ |
---|
| 1513 | length += m->m_len; |
---|
| 1514 | pTbd->data = (char *) word_swap ((unsigned long) mtod (m, void *)); |
---|
| 1515 | pTbd->size = m->m_len; |
---|
| 1516 | pPrev = pTbd; |
---|
| 1517 | pTbd = (i596_tbd *) word_swap ((unsigned long) pTbd->next); |
---|
| 1518 | l = m; |
---|
| 1519 | m = m->m_next; |
---|
[5a23ca84] | 1520 | } |
---|
| 1521 | else { |
---|
[df49c60] | 1522 | /* |
---|
| 1523 | * Just toss empty mbufs |
---|
| 1524 | */ |
---|
| 1525 | MFREE (m, n); |
---|
| 1526 | m = n; |
---|
| 1527 | if (l != NULL) |
---|
| 1528 | l->m_next = m; |
---|
| 1529 | } |
---|
| 1530 | } while( m != NULL && ++bd_count < 16 ); |
---|
[5a23ca84] | 1531 | |
---|
[df49c60] | 1532 | if ( length < UTI_596_ETH_MIN_SIZE ) { |
---|
| 1533 | pTbd->data = (char *) word_swap ((unsigned long) sc->zeroes); /* add padding to pTbd */ |
---|
| 1534 | pTbd->size = UTI_596_ETH_MIN_SIZE - length; /* zeroes have no effect on the CRC */ |
---|
| 1535 | } |
---|
| 1536 | else /* Don't use pTbd in the send routine */ |
---|
| 1537 | pTbd = pPrev; |
---|
[5a23ca84] | 1538 | |
---|
[df49c60] | 1539 | /* Disconnect the packet from the list of Tbd's */ |
---|
| 1540 | pRemainingTbdList = (i596_tbd *) word_swap ((unsigned long)pTbd->next); |
---|
| 1541 | pTbd->next = I596_NULL; |
---|
| 1542 | pTbd->size |= UTI_596_END_OF_FRAME; |
---|
[5a23ca84] | 1543 | |
---|
[df49c60] | 1544 | sc->rawsndcnt++; |
---|
[5a23ca84] | 1545 | |
---|
[df49c60] | 1546 | #ifdef DBG_SEND |
---|
| 1547 | printk(("send_packet: sending packet\n")) |
---|
| 1548 | #endif |
---|
[5a23ca84] | 1549 | |
---|
[df49c60] | 1550 | /* Sending Zero length packet: shouldn't happen */ |
---|
| 1551 | if (pTbd->size <= 0) return; |
---|
[5a23ca84] | 1552 | |
---|
[df49c60] | 1553 | #ifdef DBG_PACKETS |
---|
| 1554 | printk (("\nsend_packet: Transmitter adds packet\n")) |
---|
| 1555 | print_hdr ( sc->pTxCmd->pTbd->data ); /* print the first part */ |
---|
| 1556 | print_pkt ( sc->pTxCmd->pTbd->next->data ); /* print the first part */ |
---|
| 1557 | print_echo (sc->pTxCmd->pTbd->data); |
---|
| 1558 | #endif |
---|
[5a23ca84] | 1559 | |
---|
[df49c60] | 1560 | /* add the command to the output command queue */ |
---|
| 1561 | uti596_addCmd ( (i596_cmd *) sc->pTxCmd ); |
---|
[5a23ca84] | 1562 | |
---|
[df49c60] | 1563 | /* sleep until the command has been processed or Timeout encountered. */ |
---|
| 1564 | status= rtems_bsdnet_event_receive (INTERRUPT_EVENT, |
---|
| 1565 | RTEMS_WAIT|RTEMS_EVENT_ANY, |
---|
| 1566 | RTEMS_NO_TIMEOUT, |
---|
| 1567 | &events); |
---|
| 1568 | |
---|
| 1569 | if ( status != RTEMS_SUCCESSFUL ) { |
---|
| 1570 | printk(("Could not sleep %s\n", rtems_status_text(status))) |
---|
| 1571 | } |
---|
| 1572 | |
---|
| 1573 | #ifdef DBG_SEND |
---|
| 1574 | printk(("send_packet: RAW - wake\n")) |
---|
| 1575 | #endif |
---|
[5a23ca84] | 1576 | |
---|
[df49c60] | 1577 | sc->txInterrupts++; |
---|
[5a23ca84] | 1578 | |
---|
[df49c60] | 1579 | if ( sc->pTxCmd -> cmd.status & STAT_OK ) { |
---|
| 1580 | sc->stats.tx_packets++; |
---|
| 1581 | } |
---|
| 1582 | else { |
---|
[5a23ca84] | 1583 | |
---|
[df49c60] | 1584 | printk(("*** send_packet: Driver Error 0x%x\n", sc->pTxCmd -> cmd.status )) |
---|
| 1585 | |
---|
| 1586 | sc->stats.tx_errors++; |
---|
| 1587 | if ( sc->pTxCmd->cmd.status & 0x0020 ) |
---|
| 1588 | sc->stats.tx_retries_exceeded++; |
---|
| 1589 | if (!(sc->pTxCmd->cmd.status & 0x0040)) |
---|
| 1590 | sc->stats.tx_heartbeat_errors++; |
---|
| 1591 | if ( sc->pTxCmd->cmd.status & 0x0400 ) |
---|
| 1592 | sc->stats.tx_carrier_errors++; |
---|
| 1593 | if ( sc->pTxCmd->cmd.status & 0x0800 ) |
---|
| 1594 | sc->stats.collisions++; |
---|
| 1595 | if ( sc->pTxCmd->cmd.status & 0x1000 ) |
---|
| 1596 | sc->stats.tx_aborted_errors++; |
---|
| 1597 | } /* end if stat_ok */ |
---|
[5a23ca84] | 1598 | |
---|
[df49c60] | 1599 | /* |
---|
| 1600 | * Restore the transmitted buffer descriptor chain. |
---|
| 1601 | */ |
---|
| 1602 | pTbd -> next = (i596_tbd *) word_swap ((unsigned long)pRemainingTbdList); |
---|
[5a23ca84] | 1603 | |
---|
[df49c60] | 1604 | /* |
---|
| 1605 | * Free the mbufs used by the sender. |
---|
| 1606 | */ |
---|
| 1607 | m = input_m; |
---|
| 1608 | while ( m != NULL ) { |
---|
| 1609 | MFREE(m,n); |
---|
| 1610 | m = n; |
---|
| 1611 | } |
---|
[5a23ca84] | 1612 | } |
---|
| 1613 | |
---|
[df49c60] | 1614 | /*********************************************************************** |
---|
| 1615 | * Function: uti596_attach |
---|
| 1616 | * |
---|
| 1617 | * Description: |
---|
| 1618 | * Configure the driver, and connect to the network stack |
---|
| 1619 | * |
---|
| 1620 | * Algorithm: |
---|
| 1621 | * |
---|
| 1622 | * Check parameters in the ifconfig structure, and |
---|
| 1623 | * set driver parameters accordingly. |
---|
| 1624 | * Initialize required rx and tx buffers. |
---|
| 1625 | * Link driver data structure onto device list. |
---|
| 1626 | * Return 1 on successful completion. |
---|
| 1627 | * |
---|
| 1628 | ***********************************************************************/ |
---|
| 1629 | |
---|
| 1630 | int uti596_attach( |
---|
[db9ae70] | 1631 | struct rtems_bsdnet_ifconfig * pConfig, |
---|
| 1632 | int attaching |
---|
[5a23ca84] | 1633 | ) |
---|
| 1634 | { |
---|
[df49c60] | 1635 | uti596_softc_ *sc = &uti596_softc; /* device dependent data structure */ |
---|
[db9ae70] | 1636 | struct ifnet * ifp = (struct ifnet *)&sc->arpcom.ac_if; /* ifnet structure */ |
---|
[ed09fd77] | 1637 | unsigned char j1; /* State of J1 jumpers */ |
---|
[db9ae70] | 1638 | int unitNumber; |
---|
| 1639 | char *unitName; |
---|
[ac45548] | 1640 | #if defined(mvme167) |
---|
[db9ae70] | 1641 | char *pAddr; |
---|
| 1642 | int addr; |
---|
[ac45548] | 1643 | #endif |
---|
[5a23ca84] | 1644 | |
---|
[db9ae70] | 1645 | #ifdef DBG_ATTACH |
---|
[df49c60] | 1646 | printk(("uti596_attach: begins\n")) |
---|
[db9ae70] | 1647 | #endif |
---|
[5a23ca84] | 1648 | |
---|
[df49c60] | 1649 | /* The NIC is not started yet */ |
---|
| 1650 | sc->started = 0; |
---|
[5a23ca84] | 1651 | |
---|
[df49c60] | 1652 | /* Indicate to ULCS that this is initialized */ |
---|
[db9ae70] | 1653 | ifp->if_softc = (void *)sc; |
---|
[df49c60] | 1654 | sc->pScp = NULL; |
---|
[5a23ca84] | 1655 | |
---|
[db9ae70] | 1656 | /* Parse driver name */ |
---|
| 1657 | if ((unitNumber = rtems_bsdnet_parse_driver_name (pConfig, &unitName)) < 0) |
---|
| 1658 | return 0; |
---|
[5a23ca84] | 1659 | |
---|
[df49c60] | 1660 | ifp->if_name = unitName; |
---|
| 1661 | ifp->if_unit = unitNumber; |
---|
[5a23ca84] | 1662 | |
---|
[df49c60] | 1663 | /* Assign mtu */ |
---|
| 1664 | if ( pConfig -> mtu ) |
---|
| 1665 | ifp->if_mtu = pConfig -> mtu; |
---|
| 1666 | else |
---|
| 1667 | ifp->if_mtu = ETHERMTU; |
---|
[5a23ca84] | 1668 | |
---|
[6128a4a] | 1669 | /* |
---|
[ed09fd77] | 1670 | * Check whether parameters should be obtained from NVRAM. If |
---|
| 1671 | * yes, and if an IP address, netmask, or ethernet address are |
---|
| 1672 | * provided in NVRAM, cheat, and stuff them into the ifconfig |
---|
| 1673 | * structure, OVERRIDING and existing or NULL values. |
---|
[6128a4a] | 1674 | * |
---|
[8ef3818] | 1675 | * Warning: If values are provided in NVRAM, the ifconfig entries |
---|
[ed09fd77] | 1676 | * must be NULL because buffer memory allocated to hold the |
---|
[8ef3818] | 1677 | * structure values is unrecoverable and would be lost here. |
---|
[df49c60] | 1678 | */ |
---|
[8ef3818] | 1679 | |
---|
[ed09fd77] | 1680 | /* Read the J1 header */ |
---|
| 1681 | j1 = (unsigned char)(lcsr->vector_base & 0xFF); |
---|
| 1682 | |
---|
[e453d5c] | 1683 | #if defined(mvme167) |
---|
[ed09fd77] | 1684 | if ( !(j1 & 0x10) ) { |
---|
| 1685 | /* Jumper J1-4 is on, configure from NVRAM */ |
---|
[6128a4a] | 1686 | |
---|
[ed09fd77] | 1687 | if ( (addr = nvram->ipaddr) ) { |
---|
| 1688 | /* We have a non-zero entry, copy the value */ |
---|
| 1689 | if ( (pAddr = malloc ( INET_ADDR_MAX_BUF_SIZE, 0, M_NOWAIT )) ) |
---|
| 1690 | pConfig->ip_address = (char *)inet_ntop(AF_INET, &addr, pAddr, INET_ADDR_MAX_BUF_SIZE -1 ); |
---|
| 1691 | else |
---|
| 1692 | rtems_panic("Can't allocate ip_address buffer!\n"); |
---|
| 1693 | } |
---|
[6128a4a] | 1694 | |
---|
[ed09fd77] | 1695 | if ( (addr = nvram->netmask) ) { |
---|
| 1696 | /* We have a non-zero entry, copy the value */ |
---|
| 1697 | if ( (pAddr = malloc ( INET_ADDR_MAX_BUF_SIZE, 0, M_NOWAIT )) ) |
---|
| 1698 | pConfig->ip_netmask = (char *)inet_ntop(AF_INET, &addr, pAddr, INET_ADDR_MAX_BUF_SIZE -1 ); |
---|
| 1699 | else |
---|
| 1700 | rtems_panic("Can't allocate ip_netmask buffer!\n"); |
---|
| 1701 | } |
---|
| 1702 | |
---|
| 1703 | /* Ethernet address requires special handling -- it must be copied into |
---|
| 1704 | * the arpcom struct. The following if construct serves only to give the |
---|
| 1705 | * NVRAM parameter the highest priority if J1-4 indicates we are configuring |
---|
| 1706 | * from NVRAM. |
---|
[6128a4a] | 1707 | * |
---|
[ed09fd77] | 1708 | * If the ethernet address is specified in NVRAM, go ahead and copy it. |
---|
| 1709 | * (ETHER_ADDR_LEN = 6 bytes). |
---|
| 1710 | */ |
---|
| 1711 | if ( nvram->enaddr[0] || nvram->enaddr[1] || nvram->enaddr[2] ) { |
---|
| 1712 | /* Anything in the first three bytes indicates a non-zero entry, copy value */ |
---|
| 1713 | memcpy ((void *)sc->arpcom.ac_enaddr, &nvram->enaddr, ETHER_ADDR_LEN); |
---|
| 1714 | } |
---|
| 1715 | else if ( pConfig->hardware_address) { |
---|
| 1716 | /* There is no entry in NVRAM, but there is in the ifconfig struct, so use it. */ |
---|
| 1717 | memcpy ((void *)sc->arpcom.ac_enaddr, pConfig->hardware_address, ETHER_ADDR_LEN); |
---|
| 1718 | } |
---|
| 1719 | else { |
---|
| 1720 | /* There is no ethernet address provided, so it will be read |
---|
| 1721 | * from BBRAM at $FFFC1F2C by default. [mvme167 manual p. 1-47] |
---|
| 1722 | */ |
---|
| 1723 | memcpy ((void *)sc->arpcom.ac_enaddr, (char *)0xFFFC1F2C, ETHER_ADDR_LEN); |
---|
| 1724 | } |
---|
[8ef3818] | 1725 | } |
---|
| 1726 | else if ( pConfig->hardware_address) { |
---|
[ed09fd77] | 1727 | /* We are not configuring from NVRAM (J1-4 is off), and the ethernet address |
---|
| 1728 | * is given in the ifconfig structure. Copy it. |
---|
| 1729 | */ |
---|
[db9ae70] | 1730 | memcpy ((void *)sc->arpcom.ac_enaddr, pConfig->hardware_address, ETHER_ADDR_LEN); |
---|
[df49c60] | 1731 | } |
---|
[e453d5c] | 1732 | else |
---|
| 1733 | #endif |
---|
| 1734 | { |
---|
[ed09fd77] | 1735 | /* We are not configuring from NVRAM (J1-4 is off), and there is no ethernet |
---|
| 1736 | * address provided in the ifconfig struct, so it will be read from BBRAM at |
---|
| 1737 | * $FFFC1F2C by default. [mvme167 manual p. 1-47] |
---|
| 1738 | */ |
---|
[db9ae70] | 1739 | memcpy ((void *)sc->arpcom.ac_enaddr, (char *)0xFFFC1F2C, ETHER_ADDR_LEN); |
---|
[df49c60] | 1740 | } |
---|
| 1741 | |
---|
[8ef3818] | 1742 | /* Possibly override default acceptance of broadcast packets */ |
---|
| 1743 | if (pConfig->ignore_broadcast) |
---|
| 1744 | uti596initSetup[8] |= 0x02; |
---|
| 1745 | |
---|
[df49c60] | 1746 | /* Assign requested receive buffer descriptor count */ |
---|
| 1747 | if (pConfig->rbuf_count) |
---|
| 1748 | sc->rxBdCount = pConfig->rbuf_count; |
---|
| 1749 | else |
---|
| 1750 | sc->rxBdCount = RX_BUF_COUNT; |
---|
| 1751 | |
---|
| 1752 | /* Assign requested tx buffer descriptor count */ |
---|
| 1753 | if (pConfig->xbuf_count) |
---|
| 1754 | sc->txBdCount = pConfig->xbuf_count; |
---|
| 1755 | else |
---|
| 1756 | sc->txBdCount = TX_BUF_COUNT * TX_BD_PER_BUF; |
---|
| 1757 | |
---|
| 1758 | /* Set up fields in the ifnet structure*/ |
---|
| 1759 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; |
---|
| 1760 | ifp->if_snd.ifq_maxlen = ifqmaxlen; |
---|
[8ef3818] | 1761 | ifp->if_init = uti596_init; |
---|
[df49c60] | 1762 | ifp->if_ioctl = uti596_ioctl; |
---|
| 1763 | ifp->if_start = uti596_start; |
---|
| 1764 | ifp->if_output = ether_output; |
---|
| 1765 | |
---|
| 1766 | /* uti596_softc housekeeping */ |
---|
| 1767 | sc->started = 1; |
---|
| 1768 | sc->pInboundFrameQueue = I596_NULL; |
---|
| 1769 | sc->scb.command = 0; |
---|
[5a23ca84] | 1770 | |
---|
[df49c60] | 1771 | /* |
---|
| 1772 | * Attach the interface |
---|
| 1773 | */ |
---|
| 1774 | if_attach (ifp); |
---|
| 1775 | ether_ifattach (ifp); |
---|
| 1776 | return 1; |
---|
| 1777 | } |
---|
[5a23ca84] | 1778 | |
---|
| 1779 | /*********************************************************************** |
---|
[df49c60] | 1780 | * Function: uti596_start |
---|
[5a23ca84] | 1781 | * |
---|
| 1782 | * Description: |
---|
[df49c60] | 1783 | * start the driver |
---|
| 1784 | * |
---|
| 1785 | * Algorithm: |
---|
| 1786 | * send an event to the tx task |
---|
| 1787 | * set the if_flags |
---|
| 1788 | * |
---|
[5a23ca84] | 1789 | ***********************************************************************/ |
---|
[df49c60] | 1790 | static void uti596_start( |
---|
| 1791 | struct ifnet *ifp |
---|
[5a23ca84] | 1792 | ) |
---|
| 1793 | { |
---|
[df49c60] | 1794 | uti596_softc_ *sc = ifp->if_softc; |
---|
[6128a4a] | 1795 | |
---|
[df49c60] | 1796 | #ifdef DBG_START |
---|
| 1797 | printk(("uti596_start: begins\n")) |
---|
| 1798 | #endif |
---|
[6128a4a] | 1799 | |
---|
[df49c60] | 1800 | rtems_event_send (sc->txDaemonTid, START_TRANSMIT_EVENT); |
---|
| 1801 | ifp->if_flags |= IFF_OACTIVE; |
---|
[5a23ca84] | 1802 | } |
---|
| 1803 | |
---|
| 1804 | /*********************************************************************** |
---|
[df49c60] | 1805 | * Function: uti596_init |
---|
[5a23ca84] | 1806 | * |
---|
| 1807 | * Description: |
---|
[df49c60] | 1808 | * driver initialization |
---|
[5a23ca84] | 1809 | * |
---|
| 1810 | * Algorithm: |
---|
[df49c60] | 1811 | * initialize the 82596 |
---|
| 1812 | * start driver tx and rx tasks, and reset task |
---|
| 1813 | * send the RX_START command the the RU |
---|
| 1814 | * set if_flags |
---|
| 1815 | * |
---|
[5a23ca84] | 1816 | * |
---|
| 1817 | ***********************************************************************/ |
---|
[df49c60] | 1818 | void uti596_init( |
---|
| 1819 | void * arg |
---|
[5a23ca84] | 1820 | ) |
---|
| 1821 | { |
---|
[df49c60] | 1822 | uti596_softc_ *sc = arg; |
---|
[db9ae70] | 1823 | struct ifnet *ifp = (struct ifnet *)&sc->arpcom.ac_if; |
---|
[5a23ca84] | 1824 | |
---|
[df49c60] | 1825 | if (sc->txDaemonTid == 0) { |
---|
[5a23ca84] | 1826 | |
---|
[df49c60] | 1827 | /* |
---|
| 1828 | * Initialize the 82596 |
---|
| 1829 | */ |
---|
[db9ae70] | 1830 | #ifdef DBG_INIT |
---|
[df49c60] | 1831 | printk(("uti596_init: begins\nuti596_init: initializing the 82596...\n")) |
---|
[db9ae70] | 1832 | #endif |
---|
[df49c60] | 1833 | uti596_initialize_hardware(sc); |
---|
| 1834 | |
---|
| 1835 | /* |
---|
| 1836 | * Start driver tasks |
---|
| 1837 | */ |
---|
[db9ae70] | 1838 | #ifdef DBG_INIT |
---|
[df49c60] | 1839 | printk(("uti596_init: starting driver tasks...\n")) |
---|
[db9ae70] | 1840 | #endif |
---|
| 1841 | sc->txDaemonTid = rtems_bsdnet_newproc ("UTtx", 2*4096, uti596_txDaemon, (void *)sc); |
---|
| 1842 | sc->rxDaemonTid = rtems_bsdnet_newproc ("UTrx", 2*4096, uti596_rxDaemon, (void *)sc); |
---|
| 1843 | sc->resetDaemonTid = rtems_bsdnet_newproc ("UTrt", 2*4096, uti596_resetDaemon, (void *)sc); |
---|
[5a23ca84] | 1844 | |
---|
[db9ae70] | 1845 | #ifdef DBG_INIT |
---|
[df49c60] | 1846 | printk(("uti596_init: After attach, status of board = 0x%x\n", sc->scb.status )) |
---|
[db9ae70] | 1847 | #endif |
---|
[df49c60] | 1848 | } |
---|
[5a23ca84] | 1849 | |
---|
[df49c60] | 1850 | /* |
---|
| 1851 | * Enable receiver |
---|
| 1852 | */ |
---|
[db9ae70] | 1853 | #ifdef DBG_INIT |
---|
| 1854 | printk(("uti596_init: enabling the reciever...\n" )) |
---|
| 1855 | #endif |
---|
[df49c60] | 1856 | sc->scb.command = RX_START; |
---|
| 1857 | uti596_issueCA ( sc, UTI596_WAIT_FOR_CU_ACCEPT ); |
---|
[6128a4a] | 1858 | |
---|
[df49c60] | 1859 | /* |
---|
| 1860 | * Tell the world that we're running. |
---|
| 1861 | */ |
---|
| 1862 | ifp->if_flags |= IFF_RUNNING; |
---|
[db9ae70] | 1863 | #ifdef DBG_INIT |
---|
| 1864 | printk(("uti596_init: completed.\n")) |
---|
[6128a4a] | 1865 | #endif |
---|
[5a23ca84] | 1866 | } |
---|
| 1867 | |
---|
| 1868 | /*********************************************************************** |
---|
[df49c60] | 1869 | * Function: uti596stop |
---|
[5a23ca84] | 1870 | * |
---|
| 1871 | * Description: |
---|
[df49c60] | 1872 | * stop the driver |
---|
| 1873 | * |
---|
| 1874 | * Algorithm: |
---|
| 1875 | * mark driver as not started, |
---|
| 1876 | * mark transmitter as busy |
---|
| 1877 | * abort any transmissions/receptions |
---|
| 1878 | * clean-up all buffers ( RFD's et. al. ) |
---|
| 1879 | * |
---|
| 1880 | * |
---|
[5a23ca84] | 1881 | ***********************************************************************/ |
---|
[df49c60] | 1882 | |
---|
| 1883 | /* static */ void uti596_stop( |
---|
| 1884 | uti596_softc_ *sc |
---|
| 1885 | ) |
---|
[5a23ca84] | 1886 | { |
---|
[db9ae70] | 1887 | struct ifnet *ifp = (struct ifnet *)&sc->arpcom.ac_if; |
---|
[5a23ca84] | 1888 | |
---|
[db9ae70] | 1889 | ifp->if_flags &= ~IFF_RUNNING; |
---|
[df49c60] | 1890 | sc->started = 0; |
---|
[5a23ca84] | 1891 | |
---|
[db9ae70] | 1892 | #ifdef DBG_STOP |
---|
| 1893 | printk(("uti596stop: %s: Shutting down ethercard, status was %4.4x.\n", |
---|
[df49c60] | 1894 | uti596_softc.arpcom.ac_if.if_name, uti596_softc.scb.status)) |
---|
[db9ae70] | 1895 | #endif |
---|
[5a23ca84] | 1896 | |
---|
[db9ae70] | 1897 | printk(("Stopping interface\n")) |
---|
| 1898 | sc->scb.command = CUC_ABORT | RX_ABORT; |
---|
| 1899 | i82596->chan_attn = 0x00000000; |
---|
[df49c60] | 1900 | } |
---|
[5a23ca84] | 1901 | |
---|
[df49c60] | 1902 | /*********************************************************************** |
---|
| 1903 | * Function: void uti596_txDaemon |
---|
| 1904 | * |
---|
| 1905 | * Description: Transmit task |
---|
[6128a4a] | 1906 | * |
---|
[df49c60] | 1907 | * Algorithm: Get mbufs to be transmitted, stuff into RFDs, send |
---|
[6128a4a] | 1908 | * |
---|
[df49c60] | 1909 | ***********************************************************************/ |
---|
[5a23ca84] | 1910 | |
---|
[df49c60] | 1911 | void uti596_txDaemon( |
---|
| 1912 | void *arg |
---|
| 1913 | ) |
---|
| 1914 | { |
---|
| 1915 | uti596_softc_ *sc = (uti596_softc_ *)arg; |
---|
[db9ae70] | 1916 | struct ifnet *ifp = (struct ifnet *)&sc->arpcom.ac_if; |
---|
[df49c60] | 1917 | struct mbuf *m; |
---|
| 1918 | rtems_event_set events; |
---|
[5a23ca84] | 1919 | |
---|
[df49c60] | 1920 | for (;;) { |
---|
| 1921 | /* |
---|
| 1922 | * Wait for packet from stack |
---|
| 1923 | */ |
---|
| 1924 | rtems_bsdnet_event_receive (START_TRANSMIT_EVENT, |
---|
| 1925 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
| 1926 | RTEMS_NO_TIMEOUT, &events); |
---|
[5a23ca84] | 1927 | |
---|
[df49c60] | 1928 | /* |
---|
| 1929 | * Send packets till queue is empty. |
---|
| 1930 | * Ensure that irq is on before sending. |
---|
| 1931 | */ |
---|
| 1932 | for (;;) { |
---|
| 1933 | /* Get the next mbuf chain to transmit. */ |
---|
| 1934 | IF_DEQUEUE(&ifp->if_snd, m); |
---|
| 1935 | if (!m) |
---|
| 1936 | break; |
---|
[5a23ca84] | 1937 | |
---|
[df49c60] | 1938 | send_packet (ifp, m); /* blocks */ |
---|
| 1939 | } |
---|
| 1940 | ifp->if_flags &= ~IFF_OACTIVE; /* no more to send, mark output inactive */ |
---|
[5a23ca84] | 1941 | } |
---|
| 1942 | } |
---|
| 1943 | |
---|
| 1944 | /*********************************************************************** |
---|
[df49c60] | 1945 | * Function: uti596_rxDaemon |
---|
| 1946 | * |
---|
| 1947 | * Description: Receiver task |
---|
| 1948 | * |
---|
| 1949 | * Algorithm: Extract the packet from an RFD, and place into an |
---|
| 1950 | * mbuf chain. Place the mbuf chain in the network task |
---|
| 1951 | * queue. Assumes that the frame check sequence is removed |
---|
| 1952 | * by the 82596. |
---|
[5a23ca84] | 1953 | * |
---|
| 1954 | ***********************************************************************/ |
---|
[df49c60] | 1955 | |
---|
| 1956 | /* static */ void uti596_rxDaemon( |
---|
| 1957 | void *arg |
---|
[5a23ca84] | 1958 | ) |
---|
| 1959 | { |
---|
[df49c60] | 1960 | uti596_softc_ *sc = (uti596_softc_ *)arg; |
---|
[db9ae70] | 1961 | struct ifnet *ifp = (struct ifnet *)&sc->arpcom.ac_if; |
---|
[df49c60] | 1962 | struct mbuf *m; |
---|
[5a23ca84] | 1963 | |
---|
[df49c60] | 1964 | i596_rfd *pRfd; |
---|
| 1965 | ISR_Level level; |
---|
[1321155f] | 1966 | rtems_id tid; |
---|
[df49c60] | 1967 | rtems_event_set events; |
---|
| 1968 | struct ether_header *eh; |
---|
[5a23ca84] | 1969 | |
---|
[df49c60] | 1970 | int frames = 0; |
---|
[5a23ca84] | 1971 | |
---|
[df49c60] | 1972 | #ifdef DBG_RX |
---|
| 1973 | printk(("uti596_rxDaemon: begin\n")) |
---|
| 1974 | printk(("&scb = %p, pRfd = %p\n", &sc->scb,sc->scb.pRfd)) |
---|
| 1975 | #endif |
---|
[5a23ca84] | 1976 | |
---|
[df49c60] | 1977 | rtems_task_ident (0, 0, &tid); |
---|
[5a23ca84] | 1978 | |
---|
[df49c60] | 1979 | for(;;) { |
---|
| 1980 | /* |
---|
| 1981 | * Wait for packet. |
---|
| 1982 | */ |
---|
| 1983 | #ifdef DBG_RX |
---|
| 1984 | printk(("uti596_rxDaemon: Receiver sleeps\n")) |
---|
| 1985 | #endif |
---|
| 1986 | |
---|
| 1987 | rtems_bsdnet_event_receive (INTERRUPT_EVENT, |
---|
| 1988 | RTEMS_WAIT|RTEMS_EVENT_ANY, |
---|
| 1989 | RTEMS_NO_TIMEOUT, |
---|
| 1990 | &events); |
---|
| 1991 | |
---|
| 1992 | #ifdef DBG_RX |
---|
| 1993 | printk(("uti596_rxDaemon: Receiver wakes\n")) |
---|
| 1994 | #endif |
---|
| 1995 | /* |
---|
| 1996 | * While received frames are available. Note that the frame may be |
---|
| 1997 | * a fragment, so it is NOT a complete packet. |
---|
| 1998 | */ |
---|
[db9ae70] | 1999 | pRfd = uti596_dequeue( (i596_rfd **)&sc->pInboundFrameQueue); |
---|
[df49c60] | 2000 | while ( pRfd && |
---|
| 2001 | pRfd != I596_NULL && |
---|
| 2002 | pRfd -> stat & STAT_C ) |
---|
| 2003 | { |
---|
[5a23ca84] | 2004 | |
---|
[df49c60] | 2005 | if ( pRfd->stat & STAT_OK) { /* a good frame */ |
---|
| 2006 | int pkt_len = pRfd->count & 0x3fff; /* the actual # of bytes received */ |
---|
[5a23ca84] | 2007 | |
---|
[df49c60] | 2008 | #ifdef DBG_RX |
---|
| 2009 | printk(("uti596_rxDaemon: Good frame, @%p, data @%p length %d\n", pRfd, pRfd -> data , pkt_len)) |
---|
| 2010 | #endif |
---|
| 2011 | frames++; |
---|
[5a23ca84] | 2012 | |
---|
[df49c60] | 2013 | /* |
---|
| 2014 | * Allocate an mbuf to give to the stack |
---|
| 2015 | * The format of the data portion of the RFD is: |
---|
| 2016 | * <ethernet header, payload>. |
---|
| 2017 | * The FRAME CHECK SEQUENCE / CRC is stripped by the uti596. |
---|
| 2018 | * This is to be optimized later.... should not have to memcopy! |
---|
| 2019 | */ |
---|
| 2020 | MGETHDR(m, M_WAIT, MT_DATA); |
---|
| 2021 | MCLGET(m, M_WAIT); |
---|
| 2022 | |
---|
| 2023 | m->m_pkthdr.rcvif = ifp; |
---|
| 2024 | /* move everything into an mbuf */ |
---|
[db9ae70] | 2025 | memcpy(m->m_data, (const char *)pRfd->data, pkt_len); |
---|
[df49c60] | 2026 | m->m_len = m->m_pkthdr.len = pkt_len - sizeof(struct ether_header) - 4; |
---|
| 2027 | |
---|
| 2028 | /* move the header to an mbuf */ |
---|
| 2029 | eh = mtod (m, struct ether_header *); |
---|
| 2030 | m->m_data += sizeof(struct ether_header); |
---|
| 2031 | |
---|
| 2032 | #ifdef DBG_PACKETS |
---|
| 2033 | { |
---|
| 2034 | int i; |
---|
| 2035 | printk(("uti596_rxDaemon: mbuf contains:\n")) |
---|
| 2036 | print_eth( (char *) (((int)m->m_data)-sizeof(struct ether_header))); |
---|
| 2037 | for ( i = 0; i<20; i++) { |
---|
| 2038 | printk((".")) |
---|
| 2039 | } |
---|
| 2040 | } |
---|
| 2041 | #endif |
---|
| 2042 | |
---|
| 2043 | ether_input (ifp, eh, m); |
---|
| 2044 | |
---|
| 2045 | } /* end if STAT_OK */ |
---|
| 2046 | |
---|
| 2047 | else { |
---|
| 2048 | /* |
---|
| 2049 | * A bad frame is present: Note that this could be the last RFD! |
---|
| 2050 | */ |
---|
| 2051 | #ifdef DBG_RX |
---|
| 2052 | printk(("uti596_rxDaemon: Bad frame\n")) |
---|
| 2053 | #endif |
---|
| 2054 | /* |
---|
| 2055 | * FIX ME: use the statistics from the SCB |
---|
| 2056 | */ |
---|
| 2057 | sc->stats.rx_errors++; |
---|
| 2058 | if ((sc->scb.pRfd->stat) & 0x0001) |
---|
| 2059 | sc->stats.collisions++; |
---|
| 2060 | if ((sc->scb.pRfd->stat) & 0x0080) |
---|
| 2061 | sc->stats.rx_length_errors++; |
---|
| 2062 | if ((sc->scb.pRfd->stat) & 0x0100) |
---|
| 2063 | sc->stats.rx_over_errors++; |
---|
| 2064 | if ((sc->scb.pRfd->stat) & 0x0200) |
---|
| 2065 | sc->stats.rx_fifo_errors++; |
---|
| 2066 | if ((sc->scb.pRfd->stat) & 0x0400) |
---|
| 2067 | sc->stats.rx_frame_errors++; |
---|
| 2068 | if ((sc->scb.pRfd->stat) & 0x0800) |
---|
| 2069 | sc->stats.rx_crc_errors++; |
---|
| 2070 | if ((sc->scb.pRfd->stat) & 0x1000) |
---|
| 2071 | sc->stats.rx_length_errors++; |
---|
| 2072 | } |
---|
[5a23ca84] | 2073 | |
---|
[df49c60] | 2074 | UTI_596_ASSERT(pRfd != I596_NULL, "Supplying NULL RFD\n") |
---|
[5a23ca84] | 2075 | |
---|
[df49c60] | 2076 | _ISR_Disable(level); |
---|
| 2077 | uti596_supplyFD ( pRfd ); /* Return RFD to RFA. */ |
---|
| 2078 | _ISR_Enable(level); |
---|
[5a23ca84] | 2079 | |
---|
[db9ae70] | 2080 | pRfd = uti596_dequeue( (i596_rfd **)&sc->pInboundFrameQueue); /* grab next frame */ |
---|
[5a23ca84] | 2081 | |
---|
[df49c60] | 2082 | } /* end while */ |
---|
| 2083 | } /* end for() */ |
---|
[5a23ca84] | 2084 | |
---|
[df49c60] | 2085 | #ifdef DBG_RX |
---|
| 2086 | printk (("uti596_rxDaemon: frames ... %d\n", frames)) |
---|
| 2087 | #endif |
---|
| 2088 | } |
---|
[5a23ca84] | 2089 | |
---|
[df49c60] | 2090 | /*********************************************************************** |
---|
| 2091 | * Function: void uti596_resetDaemon |
---|
| 2092 | * |
---|
| 2093 | * Description: |
---|
| 2094 | ***********************************************************************/ |
---|
| 2095 | void uti596_resetDaemon( |
---|
| 2096 | void *arg |
---|
| 2097 | ) |
---|
| 2098 | { |
---|
| 2099 | uti596_softc_ *sc = (uti596_softc_ *)arg; |
---|
| 2100 | rtems_event_set events; |
---|
| 2101 | rtems_time_of_day tm_struct; |
---|
[5a23ca84] | 2102 | |
---|
[df49c60] | 2103 | /* struct ifnet *ifp = &sc->arpcom.ac_if; */ |
---|
[5a23ca84] | 2104 | |
---|
[df49c60] | 2105 | for (;;) { |
---|
| 2106 | /* Wait for reset event from ISR */ |
---|
| 2107 | rtems_bsdnet_event_receive (NIC_RESET_EVENT, |
---|
| 2108 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
| 2109 | RTEMS_NO_TIMEOUT, &events); |
---|
[5a23ca84] | 2110 | |
---|
[df49c60] | 2111 | rtems_clock_get(RTEMS_CLOCK_GET_TOD, &tm_struct); |
---|
| 2112 | printk(("reset daemon: Resetting NIC @ %d:%d:%d \n", |
---|
| 2113 | tm_struct.hour, tm_struct.minute, tm_struct.second)) |
---|
[5a23ca84] | 2114 | |
---|
[df49c60] | 2115 | sc->stats.nic_reset_count++; |
---|
| 2116 | /* Reinitialize the LANC */ |
---|
| 2117 | rtems_bsdnet_semaphore_obtain (); |
---|
| 2118 | uti596_reset(); |
---|
| 2119 | rtems_bsdnet_semaphore_release (); |
---|
[5a23ca84] | 2120 | } |
---|
| 2121 | } |
---|
| 2122 | |
---|
[df49c60] | 2123 | /*********************************************************************** |
---|
| 2124 | * Function: uti596_DynamicInterruptHandler |
---|
| 2125 | * |
---|
| 2126 | * Description: |
---|
| 2127 | * This is the interrupt handler for the uti596 board |
---|
| 2128 | * |
---|
| 2129 | ***********************************************************************/ |
---|
| 2130 | |
---|
| 2131 | /* static */ rtems_isr uti596_DynamicInterruptHandler( |
---|
| 2132 | rtems_vector_number irq |
---|
[5a23ca84] | 2133 | ) |
---|
| 2134 | { |
---|
[df49c60] | 2135 | #ifdef DBG_ISR |
---|
| 2136 | printk(("uti596_DynamicInterruptHandler: begins")) |
---|
| 2137 | #endif |
---|
[5a23ca84] | 2138 | |
---|
[df49c60] | 2139 | uti596_wait (&uti596_softc, UTI596_WAIT_FOR_CU_ACCEPT); |
---|
[5a23ca84] | 2140 | |
---|
[df49c60] | 2141 | scbStatus = uti596_softc.scb.status & 0xf000; |
---|
[5a23ca84] | 2142 | |
---|
[df49c60] | 2143 | if ( scbStatus ) { |
---|
| 2144 | /* acknowledge interrupts */ |
---|
[6128a4a] | 2145 | |
---|
[df49c60] | 2146 | /* Write to the ICLR bit in the PCCchip2 control registers to clear |
---|
| 2147 | * the INT status bit. Clearing INT here *before* sending the CA signal |
---|
| 2148 | * to the 82596 should ensure that interrupts won't be lost. |
---|
| 2149 | */ |
---|
| 2150 | pccchip2->LANC_int_ctl |=0x08; |
---|
| 2151 | pccchip2->LANC_berr_ctl |=0x08; |
---|
[6128a4a] | 2152 | |
---|
[df49c60] | 2153 | /* printk(("***INFO: ACK %x\n", scbStatus))*/ |
---|
[6128a4a] | 2154 | |
---|
[df49c60] | 2155 | /* Send the CA signal to acknowledge interrupt */ |
---|
| 2156 | uti596_softc.scb.command = scbStatus; |
---|
| 2157 | uti596_issueCA ( &uti596_softc, UTI596_NO_WAIT ); |
---|
[5a23ca84] | 2158 | |
---|
[df49c60] | 2159 | if( uti596_softc.resetDone ) { |
---|
| 2160 | /* stack is attached */ |
---|
| 2161 | uti596_wait ( &uti596_softc, UTI596_WAIT_FOR_CU_ACCEPT ); |
---|
[5a23ca84] | 2162 | } |
---|
| 2163 | else { |
---|
[df49c60] | 2164 | printk(("***INFO: ACK'd w/o processing. status = %x\n", scbStatus)) |
---|
| 2165 | return; |
---|
[5a23ca84] | 2166 | } |
---|
| 2167 | } |
---|
[df49c60] | 2168 | else { |
---|
| 2169 | printk(("\n***ERROR: Spurious interrupt. Resetting...\n")) |
---|
| 2170 | uti596_softc.nic_reset = 1; |
---|
[5a23ca84] | 2171 | } |
---|
| 2172 | |
---|
[df49c60] | 2173 | if ( (scbStatus & SCB_STAT_CX) && !(scbStatus & SCB_STAT_CNA) ) { |
---|
| 2174 | printk(("\n*****ERROR: Command Complete, and CNA available: 0x%x\nResetting...", scbStatus)) |
---|
| 2175 | uti596_softc.nic_reset = 1; |
---|
| 2176 | return; |
---|
| 2177 | } |
---|
[5a23ca84] | 2178 | |
---|
[df49c60] | 2179 | if ( !(scbStatus & SCB_STAT_CX) && (scbStatus & SCB_STAT_CNA) ) { |
---|
| 2180 | printk(("\n*****ERROR: CNA, NO CX:0x%x\nResetting...",scbStatus)) |
---|
| 2181 | uti596_softc.nic_reset = 1; |
---|
| 2182 | return; |
---|
| 2183 | } |
---|
[5a23ca84] | 2184 | |
---|
[df49c60] | 2185 | if ( scbStatus & SCB_CUS_SUSPENDED ) { |
---|
| 2186 | printk(("\n*****ERROR: Command unit suspended!:0x%x\nResetting...",scbStatus)) |
---|
| 2187 | uti596_softc.nic_reset = 1; |
---|
| 2188 | return; |
---|
| 2189 | } |
---|
[5a23ca84] | 2190 | |
---|
[df49c60] | 2191 | if ( scbStatus & RU_SUSPENDED ) { |
---|
| 2192 | printk(("\n*****ERROR: Receive unit suspended!:0x%x\nResetting...",scbStatus)) |
---|
| 2193 | uti596_softc.nic_reset = 1; |
---|
| 2194 | return; |
---|
| 2195 | } |
---|
[5a23ca84] | 2196 | |
---|
[df49c60] | 2197 | if ( scbStatus & SCB_STAT_RNR ) { |
---|
| 2198 | printk(("\n*****WARNING: RNR %x\n",scbStatus)) |
---|
| 2199 | if (uti596_softc.pBeginRFA != I596_NULL) { |
---|
| 2200 | printk(("*****INFO: RFD cmd: %x status:%x\n", uti596_softc.pBeginRFA->cmd, |
---|
| 2201 | uti596_softc.pBeginRFA->stat)) |
---|
| 2202 | } |
---|
| 2203 | else { |
---|
| 2204 | printk(("*****WARNING: RNR condition with NULL BeginRFA\n")) |
---|
[6128a4a] | 2205 | } |
---|
[df49c60] | 2206 | } |
---|
[5a23ca84] | 2207 | |
---|
[df49c60] | 2208 | /* |
---|
| 2209 | * Receive Unit Control |
---|
| 2210 | * a frame is received |
---|
| 2211 | */ |
---|
| 2212 | if ( scbStatus & SCB_STAT_FR ) { |
---|
| 2213 | uti596_softc.rxInterrupts++; |
---|
[6128a4a] | 2214 | |
---|
[df49c60] | 2215 | #ifdef DBG_ISR |
---|
| 2216 | printk(("uti596_DynamicInterruptHandler: Frame received\n")) |
---|
| 2217 | #endif |
---|
| 2218 | if ( uti596_softc.pBeginRFA == I596_NULL || |
---|
| 2219 | !( uti596_softc.pBeginRFA -> stat & STAT_C)) { |
---|
| 2220 | uti596_dump_scb(); |
---|
| 2221 | uti596_softc.nic_reset = 1; |
---|
| 2222 | } |
---|
| 2223 | else { |
---|
| 2224 | while ( uti596_softc.pBeginRFA != I596_NULL && |
---|
| 2225 | ( uti596_softc.pBeginRFA -> stat & STAT_C)) { |
---|
[5a23ca84] | 2226 | |
---|
[df49c60] | 2227 | #ifdef DBG_ISR |
---|
| 2228 | printk(("uti596_DynamicInterruptHandler: pBeginRFA != NULL\n")) |
---|
| 2229 | #endif |
---|
| 2230 | count_rx ++; |
---|
| 2231 | if ( count_rx > 1) { |
---|
| 2232 | printk(("****WARNING: Received 2 frames on 1 interrupt \n")) |
---|
| 2233 | } |
---|
| 2234 | /* Give Received Frame to the ULCS */ |
---|
| 2235 | uti596_softc.countRFD--; |
---|
| 2236 | |
---|
| 2237 | if ( uti596_softc.countRFD < 0 ) { |
---|
| 2238 | printk(("ISR: Count < 0 !!! count == %d, beginRFA = %p\n", |
---|
| 2239 | uti596_softc.countRFD, uti596_softc.pBeginRFA)) |
---|
| 2240 | } |
---|
| 2241 | uti596_softc.stats.rx_packets++; |
---|
| 2242 | /* the rfd next link is stored with upper and lower words swapped so read it that way */ |
---|
| 2243 | pIsrRfd = (i596_rfd *) word_swap ((unsigned long)uti596_softc.pBeginRFA->next); |
---|
| 2244 | /* the append destroys the link */ |
---|
[db9ae70] | 2245 | uti596_append( (i596_rfd **)&uti596_softc.pInboundFrameQueue , uti596_softc.pBeginRFA ); |
---|
[df49c60] | 2246 | |
---|
| 2247 | /* |
---|
| 2248 | * if we have just received the a frame in the last unknown RFD, |
---|
| 2249 | * then it is certain that the RFA is empty. |
---|
| 2250 | */ |
---|
| 2251 | if ( uti596_softc.pLastUnkRFD == uti596_softc.pBeginRFA ) { |
---|
| 2252 | UTI_596_ASSERT(uti596_softc.pLastUnkRFD != I596_NULL,"****ERROR:LastUnk is NULL, begin ptr @ end!\n") |
---|
| 2253 | uti596_softc.pEndRFA = uti596_softc.pLastUnkRFD = I596_NULL; |
---|
| 2254 | } |
---|
| 2255 | |
---|
| 2256 | #ifdef DBG_ISR |
---|
| 2257 | printk(("uti596_DynamicInterruptHandler: Wake %#x\n",uti596_softc.rxDaemonTid)) |
---|
| 2258 | #endif |
---|
| 2259 | sc = rtems_event_send(uti596_softc.rxDaemonTid, INTERRUPT_EVENT); |
---|
| 2260 | if ( sc != RTEMS_SUCCESSFUL ) { |
---|
| 2261 | rtems_panic("Can't notify rxDaemon: %s\n", |
---|
| 2262 | rtems_status_text (sc)); |
---|
| 2263 | } |
---|
| 2264 | #ifdef DBG_ISR |
---|
| 2265 | else { |
---|
| 2266 | printk(("uti596_DynamicInterruptHandler: Rx Wake: %#x\n",uti596_softc.rxDaemonTid)) |
---|
| 2267 | } |
---|
| 2268 | #endif |
---|
| 2269 | |
---|
| 2270 | uti596_softc.pBeginRFA = pIsrRfd; |
---|
| 2271 | } /* end while */ |
---|
| 2272 | } /* end if */ |
---|
| 2273 | |
---|
| 2274 | if ( uti596_softc.pBeginRFA == I596_NULL ) { |
---|
| 2275 | /* adjust the pEndRFA to reflect an empty list */ |
---|
| 2276 | if ( uti596_softc.pLastUnkRFD == I596_NULL && uti596_softc.countRFD != 0 ) { |
---|
| 2277 | printk(("Last Unk is NULL, BeginRFA is null, and count == %d\n", |
---|
| 2278 | uti596_softc.countRFD)) |
---|
| 2279 | } |
---|
| 2280 | uti596_softc.pEndRFA = I596_NULL; |
---|
| 2281 | if ( uti596_softc.countRFD != 0 ) { |
---|
| 2282 | printk(("****ERROR:Count is %d, but begin ptr is NULL\n", |
---|
| 2283 | uti596_softc.countRFD )) |
---|
| 2284 | } |
---|
| 2285 | } |
---|
| 2286 | } /* end if ( scbStatus & SCB_STAT_FR ) */ |
---|
| 2287 | |
---|
| 2288 | /* |
---|
| 2289 | * Command Unit Control |
---|
| 2290 | * a command is completed |
---|
| 2291 | */ |
---|
| 2292 | if ( scbStatus & SCB_STAT_CX ) { |
---|
| 2293 | #ifdef DBG_ISR |
---|
| 2294 | printk(("uti596_DynamicInterruptHandler: CU\n")) |
---|
| 2295 | #endif |
---|
| 2296 | |
---|
| 2297 | pIsrCmd = uti596_softc.pCmdHead; |
---|
| 2298 | |
---|
| 2299 | /* For ALL completed commands */ |
---|
| 2300 | if ( pIsrCmd != I596_NULL && pIsrCmd->status & STAT_C ) { |
---|
| 2301 | |
---|
| 2302 | #ifdef DBG_ISR |
---|
| 2303 | printk(("uti596_DynamicInterruptHandler: pIsrCmd != NULL\n")) |
---|
| 2304 | #endif |
---|
| 2305 | |
---|
| 2306 | /* Adjust the command block list */ |
---|
| 2307 | uti596_softc.pCmdHead = (i596_cmd *) word_swap ((unsigned long)pIsrCmd->next); |
---|
| 2308 | |
---|
| 2309 | /* |
---|
| 2310 | * If there are MORE commands to process, |
---|
| 2311 | * the serialization in the raw routine has failed. |
---|
| 2312 | * ( Perhaps AddCmd is bad? ) |
---|
| 2313 | */ |
---|
| 2314 | UTI_596_ASSERT(uti596_softc.pCmdHead == I596_NULL, "****ERROR: command serialization failed\n") |
---|
[6128a4a] | 2315 | |
---|
[df49c60] | 2316 | /* What if the command did not complete OK? */ |
---|
| 2317 | switch ( pIsrCmd->command & 0x7) { |
---|
| 2318 | case CmdConfigure: |
---|
| 2319 | |
---|
| 2320 | uti596_softc.cmdOk = 1; |
---|
| 2321 | break; |
---|
| 2322 | |
---|
| 2323 | case CmdDump: |
---|
| 2324 | #ifdef DBG_ISR |
---|
| 2325 | printk(("uti596_DynamicInterruptHandler: dump!\n")) |
---|
| 2326 | #endif |
---|
| 2327 | uti596_softc.cmdOk = 1; |
---|
| 2328 | break; |
---|
| 2329 | |
---|
| 2330 | case CmdDiagnose: |
---|
| 2331 | #ifdef DBG_ISR |
---|
| 2332 | printk(("uti596_DynamicInterruptHandler: diagnose!\n")) |
---|
| 2333 | #endif |
---|
| 2334 | uti596_softc.cmdOk = 1; |
---|
| 2335 | break; |
---|
| 2336 | |
---|
| 2337 | case CmdSASetup: |
---|
| 2338 | /* printk(("****INFO:Set address interrupt\n")) */ |
---|
| 2339 | if ( pIsrCmd -> status & STAT_OK ) { |
---|
| 2340 | uti596_softc.cmdOk = 1; |
---|
| 2341 | } |
---|
| 2342 | else { |
---|
| 2343 | printk(("****ERROR:SET ADD FAILED\n")) |
---|
| 2344 | } |
---|
| 2345 | break; |
---|
| 2346 | |
---|
| 2347 | case CmdTx: |
---|
| 2348 | UTI_596_ASSERT(uti596_softc.txDaemonTid, "****ERROR:Null txDaemonTid\n") |
---|
| 2349 | #ifdef DBG_ISR |
---|
| 2350 | printk(("uti596_DynamicInterruptHandler: wake TX:0x%x\n",uti596_softc.txDaemonTid)) |
---|
| 2351 | #endif |
---|
| 2352 | if ( uti596_softc.txDaemonTid ) { |
---|
| 2353 | /* Ensure that the transmitter is present */ |
---|
| 2354 | sc = rtems_event_send (uti596_softc.txDaemonTid, |
---|
| 2355 | INTERRUPT_EVENT); |
---|
| 2356 | |
---|
| 2357 | if ( sc != RTEMS_SUCCESSFUL ) { |
---|
| 2358 | printk(("****ERROR:Could NOT send event to tid 0x%x : %s\n", |
---|
| 2359 | uti596_softc.txDaemonTid, rtems_status_text (sc) )) |
---|
| 2360 | } |
---|
| 2361 | #ifdef DBG_ISR |
---|
| 2362 | else { |
---|
| 2363 | printk(("****INFO:Tx wake: %#x\n",uti596_softc.txDaemonTid)) |
---|
| 2364 | } |
---|
| 2365 | #endif |
---|
| 2366 | } |
---|
| 2367 | break; |
---|
| 2368 | |
---|
| 2369 | case CmdMulticastList: |
---|
| 2370 | printk(("***ERROR:Multicast?!\n")) |
---|
| 2371 | pIsrCmd->next = I596_NULL; |
---|
| 2372 | break; |
---|
| 2373 | |
---|
| 2374 | case CmdTDR: { |
---|
| 2375 | unsigned long status = *( (unsigned long *)pIsrCmd)+1; |
---|
| 2376 | printk(("****ERROR:TDR?!\n")) |
---|
| 2377 | |
---|
| 2378 | if (status & STAT_C) { |
---|
| 2379 | /* mark the TDR command successful */ |
---|
| 2380 | uti596_softc.cmdOk = 1; |
---|
| 2381 | } |
---|
| 2382 | else { |
---|
| 2383 | if (status & 0x4000) { |
---|
| 2384 | printk(("****WARNING:Transceiver problem.\n")) |
---|
| 2385 | } |
---|
| 2386 | if (status & 0x2000) { |
---|
| 2387 | printk(("****WARNING:Termination problem.\n")) |
---|
| 2388 | } |
---|
| 2389 | if (status & 0x1000) { |
---|
| 2390 | printk(("****WARNING:Short circuit.\n")) |
---|
| 2391 | /* printk(("****INFO:Time %ld.\n", status & 0x07ff)) */ |
---|
| 2392 | } |
---|
| 2393 | } |
---|
| 2394 | } |
---|
| 2395 | break; |
---|
| 2396 | |
---|
| 2397 | default: { |
---|
| 2398 | /* |
---|
| 2399 | * This should never be reached |
---|
| 2400 | */ |
---|
| 2401 | printk(("CX but NO known command\n")) |
---|
| 2402 | } |
---|
| 2403 | } /* end switch */ |
---|
| 2404 | |
---|
| 2405 | pIsrCmd = uti596_softc.pCmdHead; /* next command */ |
---|
| 2406 | if ( pIsrCmd != I596_NULL ) { |
---|
| 2407 | printk(("****WARNING: more commands in list, but no start to NIC\n")) |
---|
| 2408 | } |
---|
| 2409 | } /* end if pIsrCmd != NULL && pIsrCmd->stat & STAT_C */ |
---|
[6128a4a] | 2410 | |
---|
[df49c60] | 2411 | else { |
---|
[6128a4a] | 2412 | if ( pIsrCmd != I596_NULL ) { |
---|
[df49c60] | 2413 | /* The command MAY be NULL from a RESET */ |
---|
| 2414 | /* Reset the ethernet card, and wake the transmitter (if necessary) */ |
---|
| 2415 | printk(("****INFO: Request board reset ( tx )\n")) |
---|
| 2416 | uti596_softc.nic_reset = 1; |
---|
| 2417 | if ( uti596_softc.txDaemonTid) { |
---|
| 2418 | /* Ensure that a transmitter is present */ |
---|
| 2419 | sc = rtems_event_send (uti596_softc.txDaemonTid, |
---|
| 2420 | INTERRUPT_EVENT); |
---|
| 2421 | if ( sc != RTEMS_SUCCESSFUL ) { |
---|
| 2422 | printk(("****ERROR:Could NOT send event to tid 0x%x : %s\n", |
---|
| 2423 | uti596_softc.txDaemonTid, rtems_status_text (sc) )) |
---|
| 2424 | } |
---|
| 2425 | #ifdef DBG_ISR |
---|
| 2426 | else { |
---|
| 2427 | printk(("uti596_DynamicInterruptHandler: ****INFO:Tx wake: %#x\n", |
---|
| 2428 | uti596_softc.txDaemonTid)) |
---|
| 2429 | } |
---|
| 2430 | #endif |
---|
| 2431 | } |
---|
| 2432 | } |
---|
| 2433 | } |
---|
| 2434 | } /* end if command complete */ |
---|
| 2435 | |
---|
[6128a4a] | 2436 | /* |
---|
[df49c60] | 2437 | * If the receiver has stopped, |
---|
| 2438 | * check if this is a No Resources scenario, |
---|
| 2439 | * Try to add more RFD's ( no RBDs are used ) |
---|
| 2440 | */ |
---|
| 2441 | if ( uti596_softc.started ) { |
---|
| 2442 | if ( scbStatus & SCB_STAT_RNR ) { |
---|
| 2443 | #ifdef DBG_ISR |
---|
| 2444 | printk(("uti596_DynamicInterruptHandler: INFO:RNR: status %#x \n", |
---|
| 2445 | uti596_softc.scb.status )) |
---|
| 2446 | #endif |
---|
| 2447 | /* |
---|
| 2448 | * THE RECEIVER IS OFF! |
---|
| 2449 | */ |
---|
| 2450 | if ( uti596_softc.pLastUnkRFD != I596_NULL ) { |
---|
| 2451 | /* We have an unknown RFD, it is not inbound */ |
---|
| 2452 | if ( uti596_softc.pLastUnkRFD -> stat & (STAT_C | STAT_B )) { /* in use */ |
---|
| 2453 | uti596_softc.pEndRFA = uti596_softc.pLastUnkRFD; /* update end */ |
---|
| 2454 | } |
---|
| 2455 | else { |
---|
| 2456 | /* |
---|
| 2457 | * It is NOT in use, and since RNR, we know EL bit of pEndRFA was read! |
---|
| 2458 | * So, unlink it from the RFA and move it to the saved queue. |
---|
| 2459 | * But pBegin can equal LastUnk! |
---|
| 2460 | */ |
---|
| 2461 | |
---|
| 2462 | if ( uti596_softc.pEndRFA != I596_NULL ) { |
---|
| 2463 | /* check added feb24. */ |
---|
| 2464 | #ifdef DBG_ISR |
---|
| 2465 | if ((i596_rfd *)word_swap((unsigned long)uti596_softc.pEndRFA->next) != uti596_softc.pLastUnkRFD) { |
---|
| 2466 | printk(("***ERROR:UNK: %p not end->next: %p, end: %p\n", |
---|
| 2467 | uti596_softc.pLastUnkRFD, |
---|
| 2468 | uti596_softc.pEndRFA -> next, |
---|
| 2469 | uti596_softc.pEndRFA)) |
---|
| 2470 | printk(("***INFO:countRFD now %d\n", |
---|
| 2471 | uti596_softc.countRFD)) |
---|
| 2472 | printk(("\n\n")) |
---|
| 2473 | } |
---|
| 2474 | #endif |
---|
| 2475 | uti596_softc.pEndRFA -> next = I596_NULL; /* added feb 16 */ |
---|
| 2476 | } |
---|
[db9ae70] | 2477 | uti596_append( (i596_rfd **)&uti596_softc.pSavedRfdQueue, uti596_softc.pLastUnkRFD ); |
---|
[df49c60] | 2478 | uti596_softc.savedCount++; |
---|
| 2479 | uti596_softc.pEndSavedQueue = uti596_softc.pLastUnkRFD; |
---|
| 2480 | uti596_softc.countRFD--; /* It was not in the RFA */ |
---|
| 2481 | /* |
---|
| 2482 | * The Begin pointer CAN advance this far. We must resynch the CPU side |
---|
| 2483 | * with the chip. |
---|
| 2484 | */ |
---|
| 2485 | if ( uti596_softc.pBeginRFA == uti596_softc.pLastUnkRFD ) { |
---|
| 2486 | #ifdef DBG_ISR |
---|
| 2487 | if ( uti596_softc.countRFD != 0 ) { |
---|
| 2488 | printk(("****INFO:About to set begin to NULL, with count == %d\n\n", |
---|
| 2489 | uti596_softc.countRFD )) |
---|
| 2490 | } |
---|
| 2491 | #endif |
---|
| 2492 | uti596_softc.pBeginRFA = I596_NULL; |
---|
| 2493 | UTI_596_ASSERT(uti596_softc.countRFD == 0, "****ERROR:Count must be zero here!\n") |
---|
| 2494 | } |
---|
| 2495 | } |
---|
| 2496 | uti596_softc.pLastUnkRFD = I596_NULL; |
---|
| 2497 | } /* end if exists UnkRFD */ |
---|
| 2498 | |
---|
| 2499 | /* |
---|
| 2500 | * Append the saved queue to the RFA. |
---|
| 2501 | * Any further RFD's being supplied will be added to |
---|
| 2502 | * this new list. |
---|
| 2503 | */ |
---|
| 2504 | if ( uti596_softc.pSavedRfdQueue != I596_NULL ) { |
---|
| 2505 | /* entries to add */ |
---|
| 2506 | if ( uti596_softc.pBeginRFA == I596_NULL ) { |
---|
| 2507 | /* add at beginning to list */ |
---|
| 2508 | #ifdef DBG_ISR |
---|
| 2509 | if(uti596_softc.countRFD != 0) { |
---|
| 2510 | printk(("****ERROR:Begin pointer is NULL, but count == %d\n", |
---|
| 2511 | uti596_softc.countRFD)) |
---|
| 2512 | } |
---|
| 2513 | #endif |
---|
| 2514 | uti596_softc.pBeginRFA = uti596_softc.pSavedRfdQueue; |
---|
| 2515 | uti596_softc.pEndRFA = uti596_softc.pEndSavedQueue; |
---|
| 2516 | uti596_softc.pSavedRfdQueue = uti596_softc.pEndSavedQueue = I596_NULL; /* Reset the End */ |
---|
| 2517 | } |
---|
| 2518 | else { |
---|
| 2519 | #ifdef DBG_ISR |
---|
| 2520 | if ( uti596_softc.countRFD <= 0) { |
---|
| 2521 | printk(("****ERROR:Begin pointer is not NULL, but count == %d\n", |
---|
| 2522 | uti596_softc.countRFD)) |
---|
| 2523 | } |
---|
| 2524 | #endif |
---|
| 2525 | UTI_596_ASSERT( uti596_softc.pEndRFA != I596_NULL, "****WARNING: END RFA IS NULL\n") |
---|
| 2526 | UTI_596_ASSERT( uti596_softc.pEndRFA->next == I596_NULL, "****ERROR:END RFA -> next must be NULL\n") |
---|
| 2527 | |
---|
| 2528 | uti596_softc.pEndRFA->next = (i596_rfd *)word_swap((unsigned long)uti596_softc.pSavedRfdQueue); |
---|
| 2529 | uti596_softc.pEndRFA->cmd &= ~CMD_EOL; /* clear the end of list */ |
---|
| 2530 | uti596_softc.pEndRFA = uti596_softc.pEndSavedQueue; |
---|
| 2531 | uti596_softc.pSavedRfdQueue = uti596_softc.pEndSavedQueue = I596_NULL; /* Reset the End */ |
---|
| 2532 | #ifdef DBG_ISR |
---|
| 2533 | printk(("uti596_DynamicInterruptHandler: count... %d, saved ... %d \n", |
---|
| 2534 | uti596_softc.countRFD, |
---|
| 2535 | uti596_softc.savedCount)) |
---|
| 2536 | #endif |
---|
| 2537 | } |
---|
| 2538 | /* printk(("Isr: countRFD = %d\n",uti596_softc.countRFD)) */ |
---|
| 2539 | uti596_softc.countRFD += uti596_softc.savedCount; |
---|
| 2540 | /* printk(("Isr: after countRFD = %d\n",uti596_softc.countRFD)) */ |
---|
| 2541 | uti596_softc.savedCount = 0; |
---|
| 2542 | } |
---|
| 2543 | |
---|
| 2544 | #ifdef DBG_ISR |
---|
| 2545 | printk(("uti596_DynamicInterruptHandler: The list starts here %p\n",uti596_softc.pBeginRFA )) |
---|
| 2546 | #endif |
---|
| 2547 | |
---|
| 2548 | if ( uti596_softc.countRFD > 1) { |
---|
| 2549 | printk(("****INFO: pBeginRFA -> stat = 0x%x\n",uti596_softc.pBeginRFA -> stat)) |
---|
| 2550 | printk(("****INFO: pBeginRFA -> cmd = 0x%x\n",uti596_softc.pBeginRFA -> cmd)) |
---|
| 2551 | uti596_softc.pBeginRFA -> stat = 0; |
---|
| 2552 | UTI_596_ASSERT(uti596_softc.scb.command == 0, "****ERROR:scb command must be zero\n") |
---|
| 2553 | uti596_softc.scb.pRfd = uti596_softc.pBeginRFA; |
---|
| 2554 | uti596_softc.scb.rfd_pointer = word_swap((unsigned long)uti596_softc.pBeginRFA); |
---|
| 2555 | /* start RX here */ |
---|
| 2556 | printk(("****INFO: ISR Starting receiver\n")) |
---|
| 2557 | uti596_softc.scb.command = RX_START; /* should this also be CU start? */ |
---|
| 2558 | i82596->chan_attn = 0x00000000; |
---|
| 2559 | } |
---|
| 2560 | } /* end stat_rnr */ |
---|
| 2561 | } /* end if receiver started */ |
---|
| 2562 | |
---|
| 2563 | #ifdef DBG_ISR |
---|
| 2564 | printk(("uti596_DynamicInterruptHandler: X\n")) |
---|
| 2565 | #endif |
---|
| 2566 | count_rx=0; |
---|
[6128a4a] | 2567 | |
---|
[df49c60] | 2568 | /* Do this last, to ensure that the reset is called at the right time. */ |
---|
| 2569 | if ( uti596_softc.nic_reset ) { |
---|
| 2570 | uti596_softc.nic_reset = 0; |
---|
| 2571 | sc = rtems_event_send(uti596_softc.resetDaemonTid, NIC_RESET_EVENT); |
---|
| 2572 | if ( sc != RTEMS_SUCCESSFUL ) |
---|
| 2573 | rtems_panic ("Can't notify resetDaemon: %s\n", rtems_status_text (sc)); |
---|
[5a23ca84] | 2574 | } |
---|
[df49c60] | 2575 | return; |
---|
| 2576 | } |
---|
[5a23ca84] | 2577 | |
---|
[df49c60] | 2578 | /*********************************************************************** |
---|
| 2579 | * Function: uti596_ioctl |
---|
| 2580 | * |
---|
| 2581 | * Description: |
---|
| 2582 | * driver ioctl function |
---|
| 2583 | * handles SIOCGIFADDR, SIOCSIFADDR, SIOCSIFFLAGS |
---|
[6128a4a] | 2584 | * |
---|
[df49c60] | 2585 | ***********************************************************************/ |
---|
[6128a4a] | 2586 | |
---|
[df49c60] | 2587 | static int uti596_ioctl( |
---|
| 2588 | struct ifnet *ifp, |
---|
[80d4330] | 2589 | u_long command, |
---|
[db9ae70] | 2590 | caddr_t data |
---|
[df49c60] | 2591 | ) |
---|
| 2592 | { |
---|
| 2593 | uti596_softc_ *sc = ifp->if_softc; |
---|
| 2594 | int error = 0; |
---|
[5a23ca84] | 2595 | |
---|
[df49c60] | 2596 | #ifdef DBG_IOCTL |
---|
| 2597 | printk(("uti596_ioctl: begins\n", sc->pScp)) |
---|
| 2598 | #endif |
---|
[5a23ca84] | 2599 | |
---|
[df49c60] | 2600 | switch (command) { |
---|
| 2601 | case SIOCGIFADDR: |
---|
| 2602 | case SIOCSIFADDR: |
---|
| 2603 | printk(("SIOCSIFADDR\n")) |
---|
| 2604 | ether_ioctl (ifp, command, data); |
---|
| 2605 | break; |
---|
[5a23ca84] | 2606 | |
---|
[df49c60] | 2607 | case SIOCSIFFLAGS: |
---|
| 2608 | printk(("SIOCSIFFLAGS\n")) |
---|
| 2609 | switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { |
---|
| 2610 | case IFF_RUNNING: |
---|
| 2611 | printk(("IFF_RUNNING\n")) |
---|
| 2612 | uti596_stop (sc); |
---|
| 2613 | break; |
---|
[5a23ca84] | 2614 | |
---|
[df49c60] | 2615 | case IFF_UP: |
---|
| 2616 | printk(("IFF_UP\n")) |
---|
[db9ae70] | 2617 | uti596_init ( (void *)sc); |
---|
[df49c60] | 2618 | break; |
---|
[5a23ca84] | 2619 | |
---|
[df49c60] | 2620 | case IFF_UP | IFF_RUNNING: |
---|
| 2621 | printk(("IFF_UP and RUNNING\n")) |
---|
| 2622 | uti596_stop (sc); |
---|
[db9ae70] | 2623 | uti596_init ( (void *)sc); |
---|
[df49c60] | 2624 | break; |
---|
[5a23ca84] | 2625 | |
---|
[df49c60] | 2626 | default: |
---|
| 2627 | printk(("default\n")) |
---|
| 2628 | break; |
---|
| 2629 | } |
---|
| 2630 | break; |
---|
[5a23ca84] | 2631 | |
---|
[df49c60] | 2632 | case SIO_RTEMS_SHOW_STATS: |
---|
| 2633 | printk(("show stats\n")) |
---|
| 2634 | uti596_stats (sc); |
---|
| 2635 | break; |
---|
[5a23ca84] | 2636 | |
---|
[df49c60] | 2637 | /* FIXME: All sorts of multicast commands need to be added here! */ |
---|
| 2638 | default: |
---|
| 2639 | printk(("default: EINVAL\n")) |
---|
| 2640 | error = EINVAL; |
---|
| 2641 | break; |
---|
| 2642 | } |
---|
[6128a4a] | 2643 | |
---|
[df49c60] | 2644 | return error; |
---|
[5a23ca84] | 2645 | } |
---|
| 2646 | |
---|
| 2647 | /*********************************************************************** |
---|
[df49c60] | 2648 | * Function: uti596_stats |
---|
[5a23ca84] | 2649 | * |
---|
[df49c60] | 2650 | * Description: |
---|
| 2651 | * print out the collected data |
---|
[5a23ca84] | 2652 | * |
---|
| 2653 | * Algorithm: |
---|
[df49c60] | 2654 | * use printf |
---|
[5a23ca84] | 2655 | * |
---|
| 2656 | ***********************************************************************/ |
---|
[df49c60] | 2657 | |
---|
| 2658 | void uti596_stats( |
---|
| 2659 | uti596_softc_ *sc |
---|
[5a23ca84] | 2660 | ) |
---|
| 2661 | { |
---|
[df49c60] | 2662 | printf ("CPU Reports:\n"); |
---|
| 2663 | printf (" Tx raw send count:%-8lu", sc->rawsndcnt); |
---|
| 2664 | printf (" Rx Interrupts:%-8lu", sc->rxInterrupts); |
---|
| 2665 | printf (" Tx Interrupts:%-8lu\n", sc->txInterrupts); |
---|
| 2666 | printf (" Rx Packets:%-8u", sc->stats.rx_packets); |
---|
| 2667 | printf (" Tx Attempts:%-u\n", sc->stats.tx_packets); |
---|
[5a23ca84] | 2668 | |
---|
[df49c60] | 2669 | printf (" Rx Dropped:%-8u", sc->stats.rx_dropped); |
---|
| 2670 | printf (" Rx IP Packets:%-8u", sc->stats.rx_packets); |
---|
| 2671 | printf (" Tx Errors:%-8u\n", sc->stats.tx_errors); |
---|
| 2672 | printf (" Tx aborted:%-8u", sc->stats.tx_aborted_errors); |
---|
| 2673 | printf (" Tx Dropped:%-8u\n", sc->stats.tx_dropped); |
---|
| 2674 | printf (" Tx IP packets:%-8u", sc->stats.tx_packets); |
---|
[5a23ca84] | 2675 | |
---|
[df49c60] | 2676 | printf (" Collisions Detected:%-8u\n", sc->stats.collisions); |
---|
| 2677 | printf (" Tx Heartbeat Errors:%-8u", sc->stats.tx_heartbeat_errors); |
---|
| 2678 | printf (" Tx Carrier Errors:%-8u\n", sc->stats.tx_carrier_errors); |
---|
| 2679 | printf (" Tx Aborted Errors:%-8u", sc->stats.tx_aborted_errors); |
---|
| 2680 | printf (" Rx Length Errors:%-8u\n", sc->stats.rx_length_errors); |
---|
| 2681 | printf (" Rx Overrun Errors:%-8u", sc->stats.rx_over_errors); |
---|
| 2682 | printf (" Rx Fifo Errors:%-8u\n", sc->stats.rx_fifo_errors); |
---|
| 2683 | printf (" Rx Framing Errors:%-8u", sc->stats.rx_frame_errors); |
---|
| 2684 | printf (" Rx crc errors:%-8u\n", sc->stats.rx_crc_errors); |
---|
[5a23ca84] | 2685 | |
---|
[df49c60] | 2686 | printf (" TX WAITS: %-8lu\n", sc->txRawWait); |
---|
[5a23ca84] | 2687 | |
---|
[df49c60] | 2688 | printf (" NIC resets: %-8u\n", sc->stats.nic_reset_count); |
---|
[5a23ca84] | 2689 | |
---|
[df49c60] | 2690 | printf (" NIC reports\n"); |
---|
[5a23ca84] | 2691 | |
---|
[df49c60] | 2692 | #ifdef DBG_STAT |
---|
| 2693 | uti596_dump_scb(); |
---|
| 2694 | #endif |
---|
| 2695 | } |
---|
[5a23ca84] | 2696 | |
---|
[df49c60] | 2697 | /************************ PACKET DEBUG ROUTINES ************************/ |
---|
[5a23ca84] | 2698 | |
---|
[df49c60] | 2699 | #ifdef DBG_PACKETS |
---|
| 2700 | |
---|
| 2701 | /* |
---|
| 2702 | * dumpQ |
---|
[5a23ca84] | 2703 | * |
---|
[df49c60] | 2704 | * Dumps frame queues for debugging |
---|
| 2705 | */ |
---|
| 2706 | static void dumpQ( void ) |
---|
[5a23ca84] | 2707 | { |
---|
[df49c60] | 2708 | i596_rfd *pRfd; |
---|
[5a23ca84] | 2709 | |
---|
[df49c60] | 2710 | printk(("savedQ:\n")) |
---|
[6128a4a] | 2711 | |
---|
[df49c60] | 2712 | for( pRfd = uti596_softc.pSavedRfdQueue; |
---|
| 2713 | pRfd != I596_NULL; |
---|
| 2714 | pRfd = pRfd -> next) { |
---|
| 2715 | printk(("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd)) |
---|
[5a23ca84] | 2716 | } |
---|
[6128a4a] | 2717 | |
---|
[df49c60] | 2718 | printk(("Inbound:\n")) |
---|
[6128a4a] | 2719 | |
---|
[df49c60] | 2720 | for( pRfd = uti596_softc.pInboundFrameQueue; |
---|
| 2721 | pRfd != I596_NULL; |
---|
| 2722 | pRfd = pRfd -> next) { |
---|
| 2723 | printk(("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd)) |
---|
| 2724 | } |
---|
[6128a4a] | 2725 | |
---|
[df49c60] | 2726 | printk(("Last Unk: %p\n", uti596_softc.pLastUnkRFD )) |
---|
| 2727 | printk(("RFA:\n")) |
---|
[6128a4a] | 2728 | |
---|
[df49c60] | 2729 | for( pRfd = uti596_softc.pBeginRFA; |
---|
| 2730 | pRfd != I596_NULL; |
---|
| 2731 | pRfd = pRfd -> next) { |
---|
| 2732 | printk(("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd)) |
---|
[5a23ca84] | 2733 | } |
---|
| 2734 | } |
---|
| 2735 | |
---|
[df49c60] | 2736 | /* |
---|
| 2737 | * show_buffers |
---|
[6128a4a] | 2738 | * |
---|
[df49c60] | 2739 | * Print out the RFA and frame queues |
---|
| 2740 | */ |
---|
| 2741 | static void show_buffers (void) |
---|
[5a23ca84] | 2742 | { |
---|
[df49c60] | 2743 | i596_rfd *pRfd; |
---|
| 2744 | |
---|
| 2745 | printk(("82596 cmd: 0x%x, status: 0x%x RFA len: %d\n", |
---|
| 2746 | uti596_softc.scb.command, |
---|
| 2747 | uti596_softc.scb.status, |
---|
| 2748 | uti596_softc.countRFD)) |
---|
| 2749 | |
---|
| 2750 | printk(("\nRFA: \n")) |
---|
[6128a4a] | 2751 | |
---|
[df49c60] | 2752 | for ( pRfd = uti596_softc.pBeginRFA; |
---|
| 2753 | pRfd != I596_NULL; |
---|
| 2754 | pRfd = pRfd->next) { |
---|
| 2755 | printk(("Frame @ %p, status: %2.2x, cmd: %2.2x\n", |
---|
| 2756 | pRfd, pRfd->stat, pRfd->cmd)) |
---|
| 2757 | } |
---|
| 2758 | printk(("\nInbound: \n")) |
---|
[6128a4a] | 2759 | |
---|
[df49c60] | 2760 | for ( pRfd = uti596_softc.pInboundFrameQueue; |
---|
| 2761 | pRfd != I596_NULL; |
---|
| 2762 | pRfd = pRfd->next) { |
---|
| 2763 | printk(("Frame @ %p, status: %2.2x, cmd: %2.2x\n", |
---|
| 2764 | pRfd, pRfd->stat, pRfd->cmd)) |
---|
| 2765 | } |
---|
[5a23ca84] | 2766 | |
---|
[df49c60] | 2767 | printk(("\nSaved: \n")) |
---|
[6128a4a] | 2768 | |
---|
[df49c60] | 2769 | for ( pRfd = uti596_softc.pSavedRfdQueue; |
---|
| 2770 | pRfd != I596_NULL; |
---|
| 2771 | pRfd = pRfd->next) { |
---|
| 2772 | printk(("Frame @ %p, status: %2.2x, cmd: %2.2x\n", |
---|
| 2773 | pRfd, pRfd->stat, pRfd->cmd)) |
---|
| 2774 | } |
---|
[6128a4a] | 2775 | |
---|
[df49c60] | 2776 | printk(("\nUnknown: %p\n",uti596_softc.pLastUnkRFD)) |
---|
[5a23ca84] | 2777 | } |
---|
| 2778 | |
---|
[df49c60] | 2779 | /* |
---|
| 2780 | * show_queues |
---|
[5a23ca84] | 2781 | * |
---|
[df49c60] | 2782 | * Print out the saved frame queue and the RFA |
---|
| 2783 | */ |
---|
| 2784 | static void show_queues(void) |
---|
[5a23ca84] | 2785 | { |
---|
[df49c60] | 2786 | i596_rfd *pRfd; |
---|
[5a23ca84] | 2787 | |
---|
[df49c60] | 2788 | printk(("CMD: 0x%x, Status: 0x%x\n", |
---|
| 2789 | uti596_softc.scb.command, |
---|
| 2790 | uti596_softc.scb.status)) |
---|
| 2791 | printk(("saved Q\n")) |
---|
| 2792 | |
---|
| 2793 | for ( pRfd = uti596_softc.pSavedRfdQueue; |
---|
| 2794 | pRfd != I596_NULL && |
---|
| 2795 | pRfd != NULL; |
---|
| 2796 | pRfd = pRfd->next) { |
---|
| 2797 | printk(("0x%p\n", pRfd)) |
---|
| 2798 | } |
---|
[5a23ca84] | 2799 | |
---|
[df49c60] | 2800 | printk(("End saved Q 0x%p\n", uti596_softc.pEndSavedQueue)) |
---|
[5a23ca84] | 2801 | |
---|
[df49c60] | 2802 | printk(("\nRFA:\n")) |
---|
[6128a4a] | 2803 | |
---|
[df49c60] | 2804 | for ( pRfd = uti596_softc.pBeginRFA; |
---|
| 2805 | pRfd != I596_NULL && |
---|
| 2806 | pRfd != NULL; |
---|
| 2807 | pRfd = pRfd->next) { |
---|
| 2808 | printk(("0x%p\n", pRfd)) |
---|
| 2809 | } |
---|
[5a23ca84] | 2810 | |
---|
[df49c60] | 2811 | printk(("uti596_softc.pEndRFA: %p\n",uti596_softc.pEndRFA)) |
---|
| 2812 | } |
---|
[5a23ca84] | 2813 | |
---|
[df49c60] | 2814 | /* |
---|
| 2815 | * print_eth |
---|
| 2816 | * |
---|
| 2817 | * Print the contents of an ethernet packet |
---|
| 2818 | * CANNOT BE CALLED FROM ISR |
---|
| 2819 | */ |
---|
| 2820 | static void print_eth( |
---|
[5a23ca84] | 2821 | unsigned char *add |
---|
| 2822 | ) |
---|
| 2823 | { |
---|
| 2824 | int i; |
---|
| 2825 | short int length; |
---|
| 2826 | |
---|
| 2827 | printk (("Packet Location %p\n", add)) |
---|
| 2828 | printk (("Dest ")) |
---|
| 2829 | |
---|
| 2830 | for (i = 0; i < 6; i++) { |
---|
| 2831 | printk ((" %2.2X", add[i])) |
---|
[df49c60] | 2832 | } |
---|
[5a23ca84] | 2833 | printk (("\n")) |
---|
| 2834 | printk (("Source")) |
---|
| 2835 | |
---|
| 2836 | for (i = 6; i < 12; i++) { |
---|
[df49c60] | 2837 | printk ((" %2.2X", add[i])) |
---|
[5a23ca84] | 2838 | } |
---|
[6128a4a] | 2839 | |
---|
[5a23ca84] | 2840 | printk (("\n")) |
---|
| 2841 | printk (("frame type %2.2X%2.2X\n", add[12], add[13])) |
---|
| 2842 | |
---|
[6128a4a] | 2843 | if ( add[12] == 0x08 && add[13] == 0x06 ) { |
---|
[5a23ca84] | 2844 | /* an ARP */ |
---|
| 2845 | printk (("Hardware type : %2.2X%2.2X\n", add[14],add[15])) |
---|
| 2846 | printk (("Protocol type : %2.2X%2.2X\n", add[16],add[17])) |
---|
| 2847 | printk (("Hardware size : %2.2X\n", add[18])) |
---|
| 2848 | printk (("Protocol size : %2.2X\n", add[19])) |
---|
| 2849 | printk (("op : %2.2X%2.2X\n", add[20],add[21])) |
---|
| 2850 | printk (("Sender Enet addr: ")) |
---|
| 2851 | |
---|
| 2852 | for ( i=0; i< 5 ; i++) { |
---|
| 2853 | printk (("%x:", add[22 + i])) |
---|
[df49c60] | 2854 | } |
---|
[5a23ca84] | 2855 | printk (("%x\n", add[27])) |
---|
| 2856 | printk (("Sender IP addr: ")) |
---|
[6128a4a] | 2857 | |
---|
[5a23ca84] | 2858 | for ( i=0; i< 3 ; i++) { |
---|
| 2859 | printk (("%u.", add[28 + i])) |
---|
[df49c60] | 2860 | } |
---|
[5a23ca84] | 2861 | printk (("%u\n", add[31])) |
---|
| 2862 | printk (("Target Enet addr: ")) |
---|
[6128a4a] | 2863 | |
---|
[5a23ca84] | 2864 | for ( i=0; i< 5 ; i++) { |
---|
| 2865 | printk (( "%x:", add[32 + i])) |
---|
[df49c60] | 2866 | } |
---|
[5a23ca84] | 2867 | printk (("%x\n", add[37])) |
---|
| 2868 | printk (("Target IP addr: ")) |
---|
| 2869 | |
---|
| 2870 | for ( i=0; i< 3 ; i++) { |
---|
| 2871 | printk (( "%u.", add[38 + i])) |
---|
| 2872 | } |
---|
| 2873 | printk (("%u\n", add[41])) |
---|
| 2874 | } |
---|
| 2875 | |
---|
[df49c60] | 2876 | if ( add[12] == 0x08 && add[13] == 0x00 ) { |
---|
| 2877 | /* an IP packet */ |
---|
[5a23ca84] | 2878 | printk (("*********************IP HEADER******************\n")) |
---|
| 2879 | printk (("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15])) |
---|
| 2880 | printk (("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] ))) |
---|
| 2881 | printk (("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", |
---|
| 2882 | add[18],add[19], add[20], add[21])) |
---|
| 2883 | printk (("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", |
---|
| 2884 | add[22],add[23],add[24],add[25])) |
---|
| 2885 | printk (("IP packet type: %2.2X code %2.2X\n", add[34],add[35])) |
---|
| 2886 | printk (("Source IP address: ")) |
---|
[6128a4a] | 2887 | |
---|
[5a23ca84] | 2888 | for ( i=0; i< 3 ; i++) { |
---|
| 2889 | printk (("%u.", add[26 + i])) |
---|
[df49c60] | 2890 | } |
---|
[5a23ca84] | 2891 | printk (("%u\n", add[29])) |
---|
| 2892 | printk (("Destination IP address: ")) |
---|
[6128a4a] | 2893 | |
---|
[5a23ca84] | 2894 | for ( i=0; i< 3 ; i++) { |
---|
| 2895 | printk (("%u.", add[30 + i])) |
---|
| 2896 | } |
---|
[df49c60] | 2897 | printk (("%u\n", add[33])) |
---|
[5a23ca84] | 2898 | } |
---|
| 2899 | } |
---|
| 2900 | |
---|
[df49c60] | 2901 | /* |
---|
| 2902 | * print_hdr |
---|
| 2903 | * |
---|
| 2904 | * Print the contents of an ethernet packet header |
---|
| 2905 | * CANNOT BE CALLED FROM ISR |
---|
| 2906 | */ |
---|
| 2907 | static void print_hdr( |
---|
[5a23ca84] | 2908 | unsigned char *add |
---|
| 2909 | ) |
---|
| 2910 | { |
---|
| 2911 | int i; |
---|
| 2912 | |
---|
| 2913 | printk (("print_hdr: begins\n")) |
---|
| 2914 | printk (("Header Location %p\n", add)) |
---|
| 2915 | printk (("Dest ")) |
---|
| 2916 | |
---|
| 2917 | for (i = 0; i < 6; i++) { |
---|
| 2918 | printk ((" %2.2X", add[i])) |
---|
[df49c60] | 2919 | } |
---|
[5a23ca84] | 2920 | printk (("\nSource")) |
---|
| 2921 | |
---|
| 2922 | for (i = 6; i < 12; i++) { |
---|
| 2923 | printk ((" %2.2X", add[i])) |
---|
[df49c60] | 2924 | } |
---|
[5a23ca84] | 2925 | printk (("\nframe type %2.2X%2.2X\n", add[12], add[13])) |
---|
| 2926 | printk (("print_hdr: completed")) |
---|
| 2927 | } |
---|
| 2928 | |
---|
[df49c60] | 2929 | /* |
---|
| 2930 | * Function: print_pkt |
---|
| 2931 | * |
---|
| 2932 | * Print the contents of an ethernet packet & data |
---|
| 2933 | * CANNOT BE CALLED FROM ISR |
---|
| 2934 | */ |
---|
| 2935 | static void print_pkt( |
---|
[5a23ca84] | 2936 | unsigned char *add |
---|
| 2937 | ) |
---|
| 2938 | { |
---|
| 2939 | int i; |
---|
| 2940 | short int length; |
---|
| 2941 | |
---|
| 2942 | printk (("print_pkt: begins")) |
---|
| 2943 | printk (("Data Location %p\n", add)) |
---|
| 2944 | |
---|
| 2945 | if ( add[0] == 0x08 && add[1] == 0x06 ) { |
---|
| 2946 | /* an ARP */ |
---|
| 2947 | printk (("Hardware type : %2.2X%2.2X\n", add[14],add[15])) |
---|
| 2948 | printk (("Protocol type : %2.2X%2.2X\n", add[16],add[17])) |
---|
| 2949 | printk (("Hardware size : %2.2X\n", add[18])) |
---|
| 2950 | printk (("Protocol size : %2.2X\n", add[19])) |
---|
| 2951 | printk (("op : %2.2X%2.2X\n", add[20],add[21])) |
---|
| 2952 | printk (("Sender Enet addr: ")) |
---|
| 2953 | |
---|
| 2954 | for ( i=0; i< 5 ; i++) { |
---|
| 2955 | printk (( "%x:", add[22 + i])) |
---|
[df49c60] | 2956 | } |
---|
[5a23ca84] | 2957 | printk (("%x\n", add[27])) |
---|
| 2958 | printk (("Sender IP addr: ")) |
---|
[6128a4a] | 2959 | |
---|
[5a23ca84] | 2960 | for ( i=0; i< 3 ; i++) { |
---|
| 2961 | printk (("%u.", add[28 + i])) |
---|
[df49c60] | 2962 | } |
---|
[5a23ca84] | 2963 | printk (("%u\n", add[31])) |
---|
| 2964 | printk (("Target Enet addr: ")) |
---|
[6128a4a] | 2965 | |
---|
[5a23ca84] | 2966 | for ( i=0; i< 5 ; i++) { |
---|
[6128a4a] | 2967 | printk (( "%x:", add[32 + i])) |
---|
[5a23ca84] | 2968 | } |
---|
| 2969 | printk (("%x\n", add[37])) |
---|
| 2970 | printk (("Target IP addr: ")) |
---|
| 2971 | |
---|
| 2972 | for ( i=0; i< 3 ; i++) { |
---|
| 2973 | printk (( "%u.", add[38 + i])) |
---|
| 2974 | } |
---|
| 2975 | printk (("%u\n", add[41])) |
---|
| 2976 | } |
---|
| 2977 | |
---|
| 2978 | if ( add[0] == 0x08 && add[1] == 0x00 ) { |
---|
| 2979 | /* an IP packet */ |
---|
| 2980 | printk (("*********************IP HEADER******************\n")) |
---|
| 2981 | printk (("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15])) |
---|
| 2982 | printk (("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] ))) |
---|
| 2983 | printk (("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", |
---|
| 2984 | add[18],add[19], add[20], add[21])) |
---|
| 2985 | printk (("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", |
---|
| 2986 | add[22],add[23],add[24],add[25])) |
---|
| 2987 | printk (("IP packet type: %2.2X code %2.2X\n", add[34],add[35])) |
---|
| 2988 | printk (("Source IP address: ")) |
---|
[6128a4a] | 2989 | |
---|
[5a23ca84] | 2990 | for ( i=0; i< 3 ; i++) { |
---|
| 2991 | printk(( "%u.", add[26 + i])) |
---|
[df49c60] | 2992 | } |
---|
[5a23ca84] | 2993 | printk(("%u\n", add[29])) |
---|
| 2994 | printk(("Destination IP address: ")) |
---|
[6128a4a] | 2995 | |
---|
[5a23ca84] | 2996 | for ( i=0; i< 3 ; i++) { |
---|
| 2997 | printk(( "%u.", add[30 + i])) |
---|
| 2998 | } |
---|
| 2999 | printk(("%u\n", add[33])) |
---|
| 3000 | printk(("********************IP Packet Data*******************\n")) |
---|
| 3001 | length -=20; |
---|
[6128a4a] | 3002 | |
---|
[5a23ca84] | 3003 | for ( i=0; i < length ; i++) { |
---|
| 3004 | printk(("0x%2.2x ", add[34+i])) |
---|
| 3005 | } |
---|
| 3006 | printk(("\n")) |
---|
| 3007 | printk(("ICMP checksum: %2.2x %2.2x\n", add[36], add[37])) |
---|
| 3008 | printk(("ICMP identifier: %2.2x %2.2x\n", add[38], add[39])) |
---|
| 3009 | printk(("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41])) |
---|
| 3010 | printk(("print_pkt: completed")) |
---|
| 3011 | } |
---|
| 3012 | } |
---|
| 3013 | |
---|
[df49c60] | 3014 | /* |
---|
| 3015 | * print_echo |
---|
| 3016 | * |
---|
| 3017 | * Print the contents of an echo packet |
---|
| 3018 | * CANNOT BE CALLED FROM ISR |
---|
| 3019 | */ |
---|
| 3020 | static void print_echo( |
---|
[5a23ca84] | 3021 | unsigned char *add |
---|
| 3022 | ) |
---|
| 3023 | { |
---|
| 3024 | int i; |
---|
| 3025 | short int length; |
---|
| 3026 | |
---|
| 3027 | printk (("print_echo: begins")) |
---|
| 3028 | |
---|
[6128a4a] | 3029 | if ( add[12] == 0x08 && add[13] == 0x00 ) { |
---|
[5a23ca84] | 3030 | /* an IP packet */ |
---|
| 3031 | printk (("Packet Location %p\n", add)) |
---|
| 3032 | printk (("Dest ")) |
---|
| 3033 | |
---|
| 3034 | for (i = 0; i < 6; i++) { |
---|
| 3035 | printk ((" %2.2X", add[i])) |
---|
[df49c60] | 3036 | } |
---|
[5a23ca84] | 3037 | printk (("\n")) |
---|
| 3038 | printk (("Source")) |
---|
| 3039 | |
---|
| 3040 | for (i = 6; i < 12; i++) { |
---|
| 3041 | printk ((" %2.2X", add[i])) |
---|
[df49c60] | 3042 | } |
---|
[5a23ca84] | 3043 | printk (("\n")) |
---|
| 3044 | printk (("frame type %2.2X%2.2X\n", add[12], add[13])) |
---|
[6128a4a] | 3045 | |
---|
[5a23ca84] | 3046 | printk (("*********************IP HEADER******************\n")) |
---|
| 3047 | printk (("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15])) |
---|
| 3048 | printk (("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] ))) |
---|
| 3049 | printk (("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", |
---|
| 3050 | add[18],add[19], add[20], add[21])) |
---|
| 3051 | printk (("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", |
---|
| 3052 | add[22],add[23],add[24],add[25])) |
---|
| 3053 | printk (("IP packet type: %2.2X code %2.2X\n", add[34],add[35])) |
---|
| 3054 | printk (("Source IP address: ")) |
---|
[6128a4a] | 3055 | |
---|
[5a23ca84] | 3056 | for ( i=0; i< 3 ; i++) { |
---|
| 3057 | printk (("%u.", add[26 + i])) |
---|
[df49c60] | 3058 | } |
---|
[5a23ca84] | 3059 | printk (("%u\n", add[29])) |
---|
| 3060 | printk (("Destination IP address: ")) |
---|
[6128a4a] | 3061 | |
---|
[5a23ca84] | 3062 | for ( i=0; i< 3 ; i++) { |
---|
| 3063 | printk (("%u.", add[30 + i])) |
---|
| 3064 | } |
---|
| 3065 | printk (("%u\n", add[33])) |
---|
| 3066 | printk(("********************IP Packet Data*******************\n")) |
---|
| 3067 | length -=20; |
---|
[6128a4a] | 3068 | |
---|
[5a23ca84] | 3069 | for ( i=0; i < length ; i++) { |
---|
| 3070 | printk(("0x%2.2x ", add[34+i])) |
---|
[df49c60] | 3071 | } |
---|
[5a23ca84] | 3072 | printk(("\n")) |
---|
| 3073 | printk(("ICMP checksum: %2.2x %2.2x\n", add[36], add[37])) |
---|
| 3074 | printk(("ICMP identifier: %2.2x %2.2x\n", add[38], add[39])) |
---|
| 3075 | printk(("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41])) |
---|
| 3076 | printk(("print_echo: completed")) |
---|
| 3077 | } |
---|
| 3078 | } |
---|
| 3079 | |
---|
[db9ae70] | 3080 | #endif |
---|