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[/] [or1k/] [trunk/] [rtems-20020807/] [c/] [src/] [lib/] [libbsp/] [i386/] [i386ex/] [network/] [network.c] - Rev 1765
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/* uti596.c: An 82596 ethernet driver for rtems-bsd. * * network.c,v 1.4 1999/03/03 16:22:57 joel Exp */ void dump_scb(void); void printk_time(void); #ifdef DBG_VERSION #define BREAKPOINT() asm(" int $3"); #else #define BREAKPOINT() #endif #define KERNEL /* EII: Oct 16 : Version 0.0 */ #define DMA_MODE_CASCADE 0xC0 /* pass thru DREQ->HRQ, DACK<-HLDA only */ #define DMA_MASK_REG 0x0A #define DMA_MODE_REG 0x0B #define DMA_ENABLE 0x0 #define DMA_DISABLE 0x4 struct i596_rfd *pISR_Rfd; void show_buffers (void); void show_queues(void); void outbyte(char); void dumpQ(void); #define UTI_596_ASSERT( condition, str ) { if (!( condition ) ) printk(str); } int count_rx = 0; /* static char *version = "uti596.c:v0.0 11/13/97\n"; */ #include <bsp.h> #include <stdio.h> #include <stdlib.h> #include <rtems/error.h> #include <rtems/rtems_bsdnet.h> #include <sys/param.h> #include <sys/mbuf.h> #include <sys/socket.h> #include <sys/sockio.h> #include <net/if.h> #include <netinet/in.h> #include <netinet/if_ether.h> #include "uti596.h" #include "netexterns.h" #include <asm.h> /* #include "../misc/utils.h" */ static struct uti596_softc uti596_softc; static int scbStatus; static rtems_status_code sc; static struct i596_cmd *pIsrCmd; static struct i596_rfd *pIsrRfd; /* * Initial 596 configuration */ char uti596initSetup[] = { 0x0E, /* length, prefetch off ( no RBD's ) */ 0xC8, /* fifo to 8, monitor off */ 0x40, /* don't save bad frames ( was save= 80, use intel's 40 )*/ 0x2E, /* No source address insertion, 8 byte preamble */ 0x00, /* priority and backoff defaults */ 0x60, /* interframe spacing */ 0x00, /* slot time LSB */ 0xf2, /* slot time and retries */ 0x0C, /* */ 0x08, /* collision detect */ 0x40, /* minimum frame length */ 0xfb, /* tried C8 same as byte 1 in bits 6-7, else ignored*/ 0x00, 0x3f /* no multi IA */ }; /* * Externally defined symbols */ #define RX_BUF_COUNT 15 #define TX_BUF_COUNT 4 #define TX_BD_PER_BUF 4 #define INTERRUPT_EVENT RTEMS_EVENT_1 #define START_TRANSMIT_EVENT RTEMS_EVENT_2 #define NIC_RESET_EVENT RTEMS_EVENT_3 #define RBUF_SIZE 1520 /* * Local Routines */ /* These are extern, and non-inline for testing purposes */ void uti596addCmd (struct i596_cmd *pCmd); void uti596_initMem (struct uti596_softc *); void uti596_init (void * ); int uti596initRxBufs (int num); int uti596_initRFA (int num); int uti596initRxBufs (int num); static int uti596_ioctl (struct ifnet *, int, caddr_t); rtems_isr uti596DynamicInterruptHandler (rtems_vector_number); void uti596_txDaemon (void *); void uti596_rxDaemon (void *); void uti596_resetDaemon (void *); void uti596_stop (struct uti596_softc *); static void uti596_start (struct ifnet *); void uti596reset (void); void uti596_stats (struct uti596_softc *); void uti596_initialize_hardware(struct uti596_softc *); void uti596_reset_hardware(struct uti596_softc *); void uti596clearListStatus(struct i596_rfd *); void uti596addPolledCmd(struct i596_cmd *); void uti596supplyFD(struct i596_rfd *); struct i596_rfd * uti596dequeue( struct i596_rfd ** ); void uti596append( struct i596_rfd ** , struct i596_rfd * ); #ifdef DEBUG_INIT static void print_eth (unsigned char *); static void print_hdr (unsigned char *); static void print_pkt (unsigned char *); #endif void send_packet(struct ifnet *, struct mbuf *); #define UTI_596_IRQ 5 #define UTI_596_ETH_MIN_SIZE 60 /* Waits for the command word to clear. The command word is cleared AFTER the interrupt is * generated. This allows the CPU to issue the next command */ #define UTI_WAIT_COMMAND_ACCEPTED(duration,function)\ { int waitcount = duration; \ while ( uti596_softc.scb.command ) \ if (--waitcount == 0) \ { \ printk("%s: i82596 timed out with status %x, cmd %x.\n", function, \ uti596_softc.scb.status, uti596_softc.scb.command); \ break; \ } \ } /*************************************************************************/ void uti596_request_reset(void){ uti596_softc.nic_reset = 0; sc = rtems_event_send(uti596_softc.resetDaemonTid, NIC_RESET_EVENT); if ( sc != RTEMS_SUCCESSFUL ) rtems_panic ("Can't notify resetDaemon: %s\n", rtems_status_text (sc)); } static void uti596_maskOn(const rtems_irq_connect_data* irq) { /* * code should be moved from initialize_hardware * to this location ? */ (void) BSP_irq_enable_at_i8259s (irq->name); } static void uti596_maskOff(const rtems_irq_connect_data* irq) { /* * code should be moved from initialize_hardware * to this location ? */ (void) BSP_irq_disable_at_i8259s (irq->name); } static int uti596_isOn(const rtems_irq_connect_data* irq) { return BSP_irq_enabled_at_i8259s (irq->name); } /*********************************************************************** * Function: uti596initRFA(int num) ( New ) * * Description: * attempts to allocate and initialize ( chain together ) * the requested number of FD's * * Algorithm: * ***********************************************************************/ int uti596_initRFA(int num) { struct i596_rfd *pRfd; int i = 0; #ifdef DBG_596 printf ("%s: uti596_initRFA %d.\n", num); #endif /* * Initialize the first rfd in the rfa */ pRfd = (struct i596_rfd *) calloc (1,sizeof (struct i596_rfd)); if ( !pRfd ) { printf("Can't allocate all buffers: only %d allocated\n", i); return 0; } else { uti596_softc.countRFD = 1; uti596_softc.pBeginRFA = uti596_softc.pEndRFA = pRfd; printf ( "First Rfd allocated is: %p\n", uti596_softc.pBeginRFA); } for (i = 1; i < num; i++) { pRfd = (struct i596_rfd *) calloc (1,sizeof (struct i596_rfd) ); if ( pRfd != NULL ) { uti596_softc.countRFD++; uti596_softc.pEndRFA -> next = pRfd; /* link it in */ uti596_softc.pEndRFA = pRfd; /* move the end */ #ifdef DBG_596_RFA printf("Allocated RFD @ %p\n", pRfd); #endif } else { printf("Can't allocate all buffers: only %d allocated\n", i); break; } } /* end for */ uti596_softc.pEndRFA -> next = I596_NULL; UTI_596_ASSERT(uti596_softc.countRFD == RX_BUF_COUNT,"INIT:WRONG RFD COUNT\n" ); #ifdef DBG_596_RFA printf ( "Head of RFA is buffer %p\nEnd of RFA is buffer %p \n", uti596_softc.pBeginRFA, uti596_softc.pEndRFA ); #endif /* initialize the Rfd's */ for ( pRfd = uti596_softc.pBeginRFA; pRfd != I596_NULL; pRfd = pRfd -> next ) { pRfd->cmd = 0x0000; pRfd->stat = 0x0000; pRfd->pRbd = I596_NULL; pRfd->count = 0; /* number of bytes in buffer: usually less than size */ pRfd->size = 1532; /* was 1532; buffer size ( All RBD ) */ if ( pRfd -> data == NULL ) printf("Can't allocate the RFD data buffer\n"); } /* mark the last FD */ uti596_softc.pEndRFA -> cmd = CMD_EOL; /* moved jan 13 from before the init stuff */ #ifdef DBG_596_RFA printf ( "Head of RFA is buffer @ %p \n", uti596_softc.pBeginRFA ); #endif uti596_softc.pSavedRfdQueue = uti596_softc.pEndSavedQueue = I596_NULL; /* initially empty */ uti596_softc.savedCount = 0; uti596_softc.nop.cmd.command = CmdNOp; /* initialize the nop command */ return (i); /* the number of allocated buffers */ } /*********************************************************************** * Function: uti596supplyFD * * Description: returns a buffer to the receive frame pool. * call this with Inetrrupts disabled! * * Algorithm: * ***********************************************************************/ void uti596supplyFD(struct i596_rfd * pRfd ) { struct i596_rfd *pLastRfd; UTI_596_ASSERT(pRfd != I596_NULL, "Supplying NULL RFD!\n"); pRfd -> cmd = CMD_EOL; pRfd -> pRbd = I596_NULL; pRfd -> next = I596_NULL; pRfd -> stat = 0x0000; /* clear STAT_C and STAT_B bits */ /* * Check if the list is empty: */ if ( uti596_softc.pBeginRFA == I596_NULL ) { /* Init a list w/ one entry */ uti596_softc.pBeginRFA = uti596_softc.pEndRFA = pRfd; UTI_596_ASSERT(uti596_softc.countRFD == 0, "Null begin, but non-zero count\n"); if ( uti596_softc.pLastUnkRFD != I596_NULL ) printf("LastUnkRFD is NOT NULL!!\n"); uti596_softc.countRFD = 1; return; } /* * Check if the last RFD is used/read by the 596. */ pLastRfd = uti596_softc.pEndRFA; if ( pLastRfd != I596_NULL && ! (pLastRfd -> stat & ( STAT_C | STAT_B ) )) { /* C = complete, B = busy (prefetched) */ /* * Not yet too late to add it */ pLastRfd -> next = pRfd; pLastRfd -> cmd &= ~CMD_EOL; /* RESET_EL : reset EL bit to 0 */ uti596_softc.countRFD++; /* Lets assume we add it successfully If not, the RFD may be used, and may decrement countRFD < 0 !!*/ /* * Check if the last RFD was used while appending. */ if ( pLastRfd -> stat & ( STAT_C | STAT_B ) ) { /* completed or was prefetched */ /* * Either the EL bit of the last rfd has been read by the 82596, * and it will stop after reception,( true when RESET_EL not reached ) or * the EL bit was NOT read by the 82596 and it will use the linked * RFD for the next reception. ( true is RESET_EL was reached ) * So, it is unknown whether or not the linked rfd will be used. * Therefore, the end of list CANNOT be updated. */ UTI_596_ASSERT ( uti596_softc.pLastUnkRFD == I596_NULL, "Too many Unk RFD's\n" ); uti596_softc.pLastUnkRFD = pRfd; return; } else { /* * The RFD being added was not touched by the 82596 */ if (uti596_softc.pLastUnkRFD != I596_NULL ) { uti596append(&uti596_softc.pSavedRfdQueue, pRfd); /* Only here! saved Q */ uti596_softc.pEndSavedQueue = pRfd; uti596_softc.savedCount++; uti596_softc.countRFD--; } else { uti596_softc.pEndRFA = pRfd; /* the RFA has been extended */ if ( ( uti596_softc.scb.status & SCB_STAT_RNR || uti596_softc.scb.status & RU_NO_RESOURCES ) && uti596_softc.countRFD > 1 ) { /* was == 2 */ uti596_softc.pBeginRFA -> cmd &= ~CMD_EOL; /* Ensure that beginRFA is not EOL */ UTI_596_ASSERT(uti596_softc.pEndRFA -> next == I596_NULL, "supply: List buggered\n"); UTI_596_ASSERT(uti596_softc.pEndRFA -> cmd & CMD_EOL, "supply: No EOL at end.\n"); UTI_596_ASSERT(uti596_softc.scb.command == 0, "Supply: scb command must be zero\n"); #ifdef DBG_START printf("Supply FD: starting receiver"); #endif /* start the receiver */ UTI_596_ASSERT(uti596_softc.pBeginRFA != I596_NULL, "rx start w/ NULL begin! \n"); uti596_softc.scb.pRfd = uti596_softc.pBeginRFA; uti596_softc.scb.command = RX_START | SCB_STAT_RNR; /* Don't ack RNR! The receiver should be stopped in this case */ UTI_596_ASSERT( !(uti596_softc.scb.status & SCB_STAT_FR),"FRAME RECEIVED INT COMING!\n"); outport_byte(CHAN_ATTN, 0); } } return; } } else { /* * too late , pLastRfd in use ( or NULL ), * in either case, EL bit has been read, and RNR condition will occur */ uti596append( &uti596_softc.pSavedRfdQueue, pRfd); /* save it for RNR */ uti596_softc.pEndSavedQueue = pRfd; /* reset end of saved queue */ uti596_softc.savedCount++; return; } } static void uti596_start (struct ifnet *ifp) { struct uti596_softc *sc = ifp->if_softc; rtems_event_send (sc->txDaemonTid, START_TRANSMIT_EVENT); ifp->if_flags |= IFF_OACTIVE; } void uti596_initialize_hardware(struct uti596_softc *sc) { int boguscnt = 1000; rtems_status_code status_code; printf("uti596_initialize_hardware\n"); /* reset the board */ outport_word( PORT_ADDR, 0 ); outport_word( PORT_ADDR, 0 ); uti596_softc.pScp = (struct i596_scp *) calloc(1,sizeof(struct i596_scp) + 0xf); #ifdef DBG_INIT printf("initialize_hardware:Scp address initially %p\n", sc->pScp); #endif sc->pScp = (struct i596_scp *) ((((int)uti596_softc.pScp) + 0xf) & 0xfffffff0); #ifdef DBG_INIT printf("initialize_hardware:change scp address to : %p\n",sc->pScp); #endif /* change the scp address */ #ifdef DBG_INIT printf("Change the SCP address\n"); #endif /* * Set the DMA mode to enable the 82596 to become a bus-master */ outport_byte(DMA_MASK_REG,DMA_DISABLE); /* disable_dma */ outport_byte(DMA_MODE_REG,DMA_MODE_CASCADE); /* set dma mode */ outport_byte(DMA_MASK_REG,DMA_ENABLE); /* enable dma */ /* reset the board */ outport_word( PORT_ADDR, 0 ); outport_word( PORT_ADDR, 0 ); outport_word(PORT_ADDR, ((((int)sc->pScp) & 0xffff) | 2 )); outport_word(PORT_ADDR, (( (int)sc->pScp) >> 16 ) & 0xffff ); /* This is linear mode, LOCK function is disabled */ sc->pScp->sysbus = 0x00540000; sc->pScp->iscp = &sc->iscp; sc->iscp.scb = &sc->scb; sc->iscp.stat = 0x0001; sc->pCmdHead = sc->scb.pCmd = I596_NULL; #ifdef DBG_596 printf("Starting i82596.\n"); #endif /* Pass the scb address to the 596 */ outport_word(CHAN_ATTN,0); while (sc->iscp.stat) if (--boguscnt == 0) { printf("initialize_hardware: timed out with status %4.4lx\n", sc->iscp.stat ); break; } /* clear the command word */ sc->scb.command = 0; /* * Set up interrupts ( NEW irq style ) */ sc->irqInfo.name = UTI_596_IRQ; sc->irqInfo.hdl = ( void * ) uti596DynamicInterruptHandler; sc->irqInfo.on = uti596_maskOn; sc->irqInfo.off = uti596_maskOff; sc->irqInfo.isOn = uti596_isOn; status_code = BSP_install_rtems_irq_handler (&sc->irqInfo); if (!status_code) rtems_panic ("Can't attach uti596 interrupt handler for irq %d\n", sc->irqInfo.name); /* Initialize the 82596 memory ( Transmit buffers ) */ uti596_initMem(sc); #ifdef DBG_INIT printf("After attach, status of board = 0x%x\n", sc->scb.status ); #endif outport_word(0x380, 0xf); /* reset the LED's */ } void uti596_reset_hardware(struct uti596_softc *sc) { int boguscnt = 1000; rtems_status_code status_code; struct i596_cmd *pCmd; printf("uti596_reset_hardware\n"); pCmd = sc->pCmdHead; /* This is a tx command for sure (99.99999%) */ /* reset the board */ outport_word( PORT_ADDR, 0 ); outport_word( PORT_ADDR, 0 ); if ( sc->pScp == NULL ) { printf("Calloc scp\n"); uti596_softc.pScp = (struct i596_scp *) calloc(1,sizeof(struct i596_scp) + 0xf); } #ifdef DBG_RESET printf("reset_hardware:Scp address %p\n", sc->pScp); #endif sc->pScp = (struct i596_scp *) ((((int)uti596_softc.pScp) + 0xf) & 0xfffffff0); #ifdef DBG_RESET printf("reset_hardware:change scp address to : %p\n",sc->pScp); #endif /* change the scp address */ #ifdef DBG_RESET printf("Change the SCP address\n"); #endif /* * Set the DMA mode to enable the 82596 to become a bus-master */ outport_byte(DMA_MASK_REG,DMA_DISABLE); /* disable_dma */ outport_byte(DMA_MODE_REG,DMA_MODE_CASCADE); /* set dma mode */ outport_byte(DMA_MASK_REG,DMA_ENABLE); /* enable dma */ /* reset the board */ outport_word( PORT_ADDR, 0 ); outport_word( PORT_ADDR, 0 ); /* outport_word(PORT_ADDR, ((((int)uti596_softc.pScp) & 0xffff) | 2 )); outport_word(PORT_ADDR, (( (int)uti596_softc.pScp) >> 16 ) & 0xffff ); */ outport_word(PORT_ADDR, ((((int)sc->pScp) & 0xffff) | 2 )); outport_word(PORT_ADDR, (( (int)sc->pScp) >> 16 ) & 0xffff ); /* This is linear mode, LOCK function is disabled */ sc->pScp->sysbus = 0x00540000; sc->pScp->iscp = &sc->iscp; sc->iscp.scb = &sc->scb; sc->iscp.stat = 0x0001; sc->pCmdHead = sc->scb.pCmd = I596_NULL; /* * Wake the transmitter if needed. */ if ( uti596_softc.txDaemonTid && pCmd != I596_NULL ){ printf("****RESET: wakes transmitter!\n"); status_code = rtems_event_send (uti596_softc.txDaemonTid, INTERRUPT_EVENT); if ( status_code != RTEMS_SUCCESSFUL ) printk("****ERROR:Could NOT send event to tid 0x%x : %s\n", uti596_softc.txDaemonTid, rtems_status_text (status_code) ); } #ifdef DBG_596 printf("reset_hardware: starting i82596.\n"); #endif /* Pass the scb address to the 596 */ outport_word(CHAN_ATTN,0); while (sc->iscp.stat) if (--boguscnt == 0) { printf("reset_hardware: timed out with status %4.4lx\n", sc->iscp.stat ); break; } /* clear the command word */ sc->scb.command = 0; #ifdef DBG_RESET printf("After reset_hardware, status of board = 0x%x\n", sc->scb.status ); #endif outport_word(0x380, 0xf); /* reset the LED's */ } /*********************************************************************** * Function: uti596_initMem * * Description: * creates the necessary descriptors for the * uti596 board, hooks the interrupt, and starts the board. * Assumes that interrupts are hooked. * * Algorithm: * ***********************************************************************/ void uti596_initMem(struct uti596_softc * sc) { int i,count; struct i596_tbd *pTbd; sc->resetDone = 0; /* ??? */ /* * Set up receive frame area (RFA) */ i = uti596_initRFA( sc->rxBdCount ); if ( i < sc->rxBdCount ) printf("init_rfd: only able to allocate %d receive frame descriptors\n", i); sc->scb.pRfd = sc->pBeginRFA; #ifdef DBG_INIT printf(" IRQ %d.\n", sc->irqInfo.name); #endif /* * Diagnose the health of the board */ uti596Diagnose(1); /* * set up the i596 config command */ #ifdef DBG_INIT printf("Configuring\n"); #endif sc->set_conf.cmd.command = CmdConfigure; memcpy (sc->set_conf.data, uti596initSetup, 14); uti596addPolledCmd( (struct i596_cmd *) &sc->set_conf); /**** * POLL ****/ count = 2000; while( !( sc->set_conf.cmd.status & STAT_C ) && --count ) printf("."); if ( count ) printf("Configure OK, count = %d\n",count); else printf("***Configure failed\n"); /*******/ /* * Create the IA setup command */ #ifdef DBG_INIT printf("Setting Address\n"); #endif sc->set_add.cmd.command = CmdSASetup; for ( i=0; i<6; i++) sc->set_add.data[i]=sc->arpcom.ac_enaddr[i]; sc->cmdOk = 0; uti596addPolledCmd((struct i596_cmd *)&sc->set_add); /*******/ count = 2000; while( !(sc->set_add.cmd.status & STAT_C ) && --count) printf("."); if ( count ) printf ("Set Address OK, count= %d\n",count); else printf("Set Address Failed\n"); /*******/ #ifdef DBG_INIT printf( "After initialization, status and command: 0x%x, 0x%x\n", sc->scb.status, sc->scb.status); #endif /* initialize transmit buffer descriptors*/ sc->pLastUnkRFD = I596_NULL; sc->pTxCmd = (struct tx_cmd *) calloc (1,sizeof (struct tx_cmd) ); sc->pTbd = (struct i596_tbd *) calloc (1,sizeof (struct i596_tbd) ); sc->pTxCmd -> pTbd = sc->pTbd; sc->pTxCmd->cmd.command = CMD_FLEX|CmdTx; sc->pTxCmd->pad = 0; sc->pTxCmd->size = 0; /* all bytes are in list of TBD's */ pTbd = sc->pTbd; for ( i=0; i<sc->txBdCount; i++) pTbd = pTbd -> next = (struct i596_tbd *) calloc (1,sizeof (struct i596_tbd) ); pTbd -> next = I596_NULL; memset ( &sc->zeroes, 0, 64); #ifdef DBG_596 printf( "After receiver start, status and command: 0x%x, 0x%x\n", sc->scb.status, sc->scb.status); #endif printf("uti596_initMem allows ISR's\n"); sc->resetDone = 1; /* now need ISR */ } /*********************************************************************** * Function: uti596dump * * Description: Dump 596 registers * * Algorithm: ***********************************************************************/ /* static */ int uti596dump(char * pDumpArea) { struct i596_dump dumpCmd; int boguscnt = 25000000; /* over a second! */ #ifdef DBG_596 printf("uti596dump:\n"); #endif dumpCmd.cmd.command = CmdDump; dumpCmd.cmd.next = I596_NULL; dumpCmd.pData = pDumpArea; uti596_softc.cmdOk = 0; uti596addCmd ( (struct i596_cmd *)&dumpCmd); while (1) if ( --boguscnt == 0){ printf("Dump command was not processed within spin loop delay\n"); return 0; } else { if ( uti596_softc.cmdOk ) return 1; /* successful completion */ } } /*********************************************************************** * Function: uti596_rxDaemon * * Description: Receiver task * * Algorithm: Extract the packet from an RFD, and place into an * mbuf chain. Place the mbuf chain in the network task * queue. Assumes that the frame check sequence is removed * by the 82596. * ***********************************************************************/ /* static */ void uti596_rxDaemon(void *arg) { struct uti596_softc *sc = (struct uti596_softc *)arg; struct ifnet *ifp = &sc->arpcom.ac_if; struct mbuf *m; struct i596_rfd *pRfd; ISR_Level level; int tid; rtems_event_set events; struct ether_header *eh; int frames = 0; #ifdef DBG_596 printf ("uti596_rxDaemon\n"); printf("&scb = %p, pRfd = %p\n", &sc->scb,sc->scb.pRfd); #endif rtems_task_ident (0, 0, &tid); #ifdef DBG_596 printf("RX tid = 0x%x\n", tid); #endif for(;;) { /* * Wait for packet. */ #ifdef DBG_596 printf("Receiver sleeps\n"); #endif rtems_bsdnet_event_receive (INTERRUPT_EVENT, RTEMS_WAIT|RTEMS_EVENT_ANY, RTEMS_NO_TIMEOUT, &events); #ifdef DBG_596 printf("Receiver wakes\n"); #endif /* * While received frames are available. Note that the frame may be * a fragment, so it is NOT a complete packet. */ pRfd = uti596dequeue( &sc->pInboundFrameQueue); while ( pRfd && pRfd != I596_NULL && pRfd -> stat & STAT_C ) { #ifdef DEBUG_INIT printf("\nReceived packet:\n"); print_eth( pRfd->data); #endif if ( pRfd->stat & STAT_OK){ /* a good frame. Allocate an mbuf to take it from the queue */ int pkt_len = pRfd->count & 0x3fff; /* the actual # of bytes received */ #ifdef DBG_596 printf("Good frame, @%p, data @%p length %d\n", pRfd, pRfd -> data , pkt_len); #endif frames++; /* * Allocate an mbuf to give to the stack * The format of the data portion of the RFD is: * <ethernet header, payload>. * The FRAME CHECK SEQUENCE / CRC is stripped by the uti596. * This is to be optimized later.... should not have to memcopy! */ MGETHDR(m, M_WAIT, MT_DATA); MCLGET(m, M_WAIT); m->m_pkthdr.rcvif = ifp; /* move everything into an mbuf */ memcpy(m->m_data, pRfd->data, pkt_len); m->m_len = m->m_pkthdr.len = pkt_len - sizeof(struct ether_header) - 4; /* move the header to an mbuf */ eh = mtod (m, struct ether_header *); m->m_data += sizeof(struct ether_header); #ifdef DBG_596 printf("m->m_ext: %p pRfd -> data: %p\n", m->m_ext, pRfd -> data); #endif #ifdef DEBUG_INIT_2 printf("mbuf contains:\n"); print_eth( (char *) (((int)m->m_data)-sizeof(struct ether_header))); for ( i = 0; i<20; i++) printf("."); #endif #ifdef DBG_VERSION BREAKPOINT(); #endif ether_input (ifp, eh, m); } /* end if STAT_OK */ else { /* * A bad frame is present: Note that this could be the last RFD! */ #ifdef DBG_596 printf("Bad frame\n"); #endif /* * FIX ME: use the statistics from the SCB */ sc->stats.rx_errors++; if ((sc->scb.pRfd->stat) & 0x0001) sc->stats.collisions++; if ((sc->scb.pRfd->stat) & 0x0080) sc->stats.rx_length_errors++; if ((sc->scb.pRfd->stat) & 0x0100) sc->stats.rx_over_errors++; if ((sc->scb.pRfd->stat) & 0x0200) sc->stats.rx_fifo_errors++; if ((sc->scb.pRfd->stat) & 0x0400) sc->stats.rx_frame_errors++; if ((sc->scb.pRfd->stat) & 0x0800) sc->stats.rx_crc_errors++; if ((sc->scb.pRfd->stat) & 0x1000) sc->stats.rx_length_errors++; } UTI_596_ASSERT(pRfd != I596_NULL, "Supplying NULL RFD\n"); #ifdef DBG_SUPPLY_FD printf("Supply FD Starting\n"); #endif _ISR_Disable(level); uti596supplyFD ( pRfd ); /* Return RFD to RFA. CAN WE REALLY?*/ _ISR_Enable(level); #ifdef DBG_SUPPLY_FD printf("Supply FD Complete\n"); #endif #ifdef DBG_VERSION BREAKPOINT(); #endif pRfd = uti596dequeue( &sc->pInboundFrameQueue); /* grab next frame */ } /* end while */ } /* end for(;;)*/ #ifdef DBG_596 printf ("frames %d\n", frames); #endif } /*********************************************************************** * Function: uti596clearListStatus * * Description: * Clear the stat fields for all rfd's * Algorithm: * ***********************************************************************/ void uti596clearListStatus(struct i596_rfd *pRfd) { while ( pRfd != I596_NULL ) { pRfd -> stat = 0; /* clear the status field */ pRfd = pRfd-> next; } } void uti596reset(void) { int i,count; struct uti596_softc *sc = &uti596_softc; /* struct i596_rfd * pRfd; */ #ifdef DBG_RESET printf ("reset: begins\n"); #endif sc->resetDone = 0; sc->irqInfo.off(&sc->irqInfo); UTI_WAIT_COMMAND_ACCEPTED(10000, "reset: wait for previous command complete"); /* abort ALL of the current work */ /* FEB 17 REMOVED >>>>> sc->scb.command = CUC_ABORT | RX_ABORT; outport_word(CHAN_ATTN,0); UTI_WAIT_COMMAND_ACCEPTED(4000, "reset: abort requested"); <<<<< */ uti596_reset_hardware(&uti596_softc); /* reset the ethernet hardware. must re-config */ #ifdef DBG_RESET uti596Diagnose(1); #endif sc->set_conf.cmd.command = CmdConfigure; memcpy (sc->set_conf.data, uti596initSetup, 14); uti596addPolledCmd( (struct i596_cmd *) &sc->set_conf); /**** * POLL ****/ count = 2000; while( !( sc->set_conf.cmd.status & STAT_C ) && --count ) printf("."); if ( count ) printf("Configure OK, count = %d\n",count); else printf("***reset: Configure failed\n"); /* * Create the IA setup command */ #ifdef DBG_RESET printf("reset: Setting Address\n"); #endif sc->set_add.cmd.command = CmdSASetup; for ( i=0; i<6; i++) sc->set_add.data[i]=sc->arpcom.ac_enaddr[i]; sc->cmdOk = 0; uti596addPolledCmd((struct i596_cmd *)&sc->set_add); count = 2000; while( !(sc->set_add.cmd.status & STAT_C ) && --count) printf("."); if ( count ) printf ("Reset Set Address OK, count= %d\n",count); else printf("Reset Set Address Failed\n"); /*******/ sc->pCmdHead = sc->pCmdTail = sc->scb.pCmd = I596_NULL; /* Feb 17. clear these out */ #ifdef DBG_RESET printf( "After reset, status and command: 0x%x, 0x%x\n", sc->scb.status, sc->scb.status); #endif /* restore the RFA */ /*dumpQ();*/ if ( sc->pLastUnkRFD != I596_NULL ) { sc-> pEndRFA = sc->pLastUnkRFD; /* The end position can be updated */ sc-> pLastUnkRFD = I596_NULL; } sc->pEndRFA->next = sc->pSavedRfdQueue; if ( sc->pSavedRfdQueue != I596_NULL ) { sc->pEndRFA = sc->pEndSavedQueue; sc->pSavedRfdQueue = sc->pEndSavedQueue = I596_NULL; sc -> countRFD = sc->rxBdCount ; } /* if ( sc->pInboundFrameQueue != I596_NULL ){ do { pRfd = sc->pInboundFrameQueue->next; sc->pEndRFA -> next = sc->pInboundFrameQueue; sc->pInboundFrameQueue = pRfd; } while( pRfd != I596_NULL ) ; } */ sc->scb.pRfd = sc->pBeginRFA; /* readdress the head of the RFA in the SCB */ uti596clearListStatus(sc->pBeginRFA ); /* dumpQ();*/ printf("Reset:Starting NIC\n"); sc->scb.command = RX_START; sc->started = 1; /* we assume that the start works */ sc->resetDone = 1; /* moved here from after channel attn. */ outport_word(CHAN_ATTN,0 ); UTI_WAIT_COMMAND_ACCEPTED(4000, "reset"); printf("Reset:Start complete \n"); UTI_596_ASSERT(sc->pCmdHead == I596_NULL, "Reset: CMD not cleared\n"); sc->irqInfo.on(&sc->irqInfo); /* moved back here. Tried it before RX command issued. */ /* uti596addCmd(&uti506_softc.nop); */ /* just for fun */ #ifdef DBG_RESET printf("reset: complete\n"); #endif } /*********************************************************************** * Function: uti596addCmd * * Description: * This routine adds a command onto the end of the * command chain * * Algorithm: * Add the command to the end of and existing chain, * or start the chain and issue a CUC_START * * ***********************************************************************/ /* static */ void uti596addCmd(struct i596_cmd *pCmd) { ISR_Level level; #ifdef DBG_596 printf("Adding command 0x%x\n", pCmd -> command ); #endif #ifdef DEBUG_ADD switch ( pCmd -> command & 0x7 ){ /* check bottom 7 bits */ case CmdConfigure: printf("ADD: Configure Command 0x%x\n", pCmd->command); break; case CmdSASetup: printf("ADD: Set Address Command 0x%x\n", pCmd->command); break; case CmdMulticastList: printf("ADD: Multi-cast list 0x%x\n", pCmd->command); break; case CmdNOp: printf("ADD: NO op 0x%x\n", pCmd->command); break; case CmdTDR: printf("ADD: TDR 0x%x\n", pCmd->command); break; case CmdDump: printf("ADD: Dump 0x%x\n", pCmd->command); break; case CmdDiagnose: printf("ADD: Diagnose 0x%x\n", pCmd->command); break; case CmdTx: break; default: printf("****Unknown Command encountered 0x%x\n", pCmd->command); break; } /* end switch */ #endif pCmd->status = 0; pCmd->command |= (CMD_EOL | CMD_INTR ); /* all commands last in list & return an interrupt */ pCmd->next = I596_NULL; _ISR_Disable(level); if (uti596_softc.pCmdHead == I596_NULL) { uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = pCmd; #ifdef DBG_596 printf("First Cmd\n"); #endif UTI_WAIT_COMMAND_ACCEPTED(10000,"add command"); /* wait for acceptance of previous command */ /* CHANGED TO |= Mar. 27 4:20 pm, was just =. changed back jun 18 1998. The wait assures command = 0 */ uti596_softc.scb.command = CUC_START; outport_word (CHAN_ATTN,0); _ISR_Enable(level); } else { #ifdef DBG_596 printf("Chained Cmd\n"); #endif uti596_softc.pCmdTail->next = pCmd; uti596_softc.pCmdTail = pCmd; /* added Jan 30 */ _ISR_Enable(level); } #ifdef DBG_596 printf("Scb status & command 0x%x 0x%x\n", uti596_softc.scb.status, uti596_softc.scb.command ); #endif } /*********************************************************************** * Function: uti596addPolledCmd * * Description: * This routine issues a single command then polls for it's * completion. TO BE CALLED FROM ISR ONLY * * Algorithm: * Give the command to the driver. ( CUC_START is ALWAYS required ) * Poll for completion. * ***********************************************************************/ void uti596addPolledCmd(struct i596_cmd *pCmd) { #ifdef DBG_596 printf("Adding command 0x%x\n", pCmd -> command ); #endif #ifdef DBG_POLLED_CMD switch ( pCmd -> command & 0x7 ){ /* check bottom 7 bits */ case CmdConfigure: printf("PolledCMD: Configure Command 0x%x\n", pCmd->command); break; case CmdSASetup: printf("PolledCMD: Set CMDress Command 0x%x\n", pCmd->command); break; case CmdMulticastList: printf("PolledCMD: Multi-cast list 0x%x\n", pCmd->command); break; case CmdNOp: printf("PolledCMD: NO op 0x%x\n", pCmd->command); break; case CmdTDR: printf("PolledCMD: TDR 0x%x\n", pCmd->command); break; case CmdDump: printf("PolledCMD: Dump 0x%x\n", pCmd->command); break; case CmdDiagnose: printf("PolledCMD: Diagnose 0x%x\n", pCmd->command); break; case CmdTx: break; default: printf("PolledCMD: ****Unknown Command encountered 0x%x\n", pCmd->command); break; } /* end switch */ #endif pCmd->status = 0; pCmd->command |= CMD_EOL ; /* only command in list*/ pCmd->next = I596_NULL; UTI_WAIT_COMMAND_ACCEPTED(10000,"Add Polled command: wait prev"); uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = pCmd; uti596_softc.scb.command = CUC_START; outport_word (CHAN_ATTN,0); UTI_WAIT_COMMAND_ACCEPTED(10000,"Add Polled command: start"); uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = I596_NULL; #ifdef DBG_POLLED_CMD printf("Scb status & command 0x%x 0x%x\n", uti596_softc.scb.status, uti596_softc.scb.command ); #endif } /* * Driver transmit daemon */ void uti596_txDaemon (void *arg) { struct uti596_softc *sc = (struct uti596_softc *)arg; struct ifnet *ifp = &sc->arpcom.ac_if; struct mbuf *m; rtems_event_set events; for (;;) { /* * Wait for packet from stack */ rtems_bsdnet_event_receive (START_TRANSMIT_EVENT, RTEMS_EVENT_ANY | RTEMS_WAIT, RTEMS_NO_TIMEOUT, &events); /* * Send packets till queue is empty. * Ensure that irq is on before sending. */ for (;;) { /* Feb 17: No need to make sure a reset is in progress, * Since reset daemon runs at same priority as this thread */ /* * Get the next mbuf chain to transmit. */ IF_DEQUEUE(&ifp->if_snd, m); if (!m) break; send_packet (ifp, m); /* blocks */ } /* end for */ ifp->if_flags &= ~IFF_OACTIVE; /* no more to send, mark output inactive */ } } /* * NIC reset daemon. */ void uti596_resetDaemon (void *arg) { struct uti596_softc *sc = (struct uti596_softc *)arg; rtems_event_set events; rtems_time_of_day tm_struct; /* struct ifnet *ifp = &sc->arpcom.ac_if; */ for (;;) { /* * Wait for reset event from ISR */ rtems_bsdnet_event_receive (NIC_RESET_EVENT, RTEMS_EVENT_ANY | RTEMS_WAIT, RTEMS_NO_TIMEOUT, &events); rtems_clock_get(RTEMS_CLOCK_GET_TOD, &tm_struct); printf("reset daemon: Resetting NIC @ %d:%d:%d \n", tm_struct.hour, tm_struct.minute, tm_struct.second); sc->stats.nic_reset_count++; /* * Reinitialize the network card */ rtems_bsdnet_semaphore_obtain (); uti596reset(); rtems_bsdnet_semaphore_release (); } } /*********************************************************************** * Function: send_packet * * Description: Send a raw ethernet packet * * Algorithm: * increment some stats counters, * create the transmit command, * add the command to the CBL, * wait for event * ***********************************************************************/ void send_packet(struct ifnet *ifp, struct mbuf *m) { struct i596_tbd *pPrev = I596_NULL, *pRemainingTbdList, *pTbd; struct mbuf *n, *input_m = m; struct uti596_softc *sc = ifp->if_softc; /* is this available from ifp ?*/ struct mbuf *l = NULL; unsigned int length = 0; rtems_status_code status; int bd_count = 0; rtems_event_set events; /* * For all mbufs in the chain, * fill a transmit buffer descriptor */ pTbd = sc->pTxCmd->pTbd; do { if (m->m_len) { /* * Fill in the buffer descriptor */ length += m->m_len; pTbd->data = mtod (m, void *); pTbd->size = m->m_len; pPrev = pTbd; pTbd = pTbd -> next; l = m; m = m->m_next; } else { /* * Just toss empty mbufs */ MFREE (m, n); m = n; if (l != NULL) l->m_next = m; } } while( m != NULL && ++bd_count < 16 ); /* This should never happen */ if ( bd_count == 16 ) { printf("TX ERROR:Too many mbufs in the packet!!!\n"); printf("Must coalesce!\n"); } if ( length < UTI_596_ETH_MIN_SIZE ) { pTbd->data = sc->zeroes; /* add padding to pTbd */ pTbd->size = UTI_596_ETH_MIN_SIZE - length; /* zeroes have no effect on the CRC */ } else pTbd = pPrev; /* Don't use pTbd in the send routine */ /* Disconnect the packet from the list of Tbd's */ pRemainingTbdList = pTbd->next; pTbd->next = I596_NULL; pTbd->size |= UTI_596_END_OF_FRAME; #ifdef DBG_RAW printf("RAW:Add cmd and sleep\n"); #endif sc->rawsndcnt++; #ifdef DBG_RAW printf ("sending packet\n"); #endif /* Sending Zero length packet: shouldn't happen */ if (pTbd->size <= 0) return ; #ifdef DEBUG_INIT_2 printf("\nTransmitter adds packet\n"); print_hdr ( sc->pTxCmd->pTbd->data ); /* print the first part */ print_pkt ( sc->pTxCmd->pTbd->next->data ); /* print the first part */ /* print_echo(sc->pTxCmd->pTbd->data); */ #endif #ifdef DBG_VERSION BREAKPOINT(); #endif /* add the command to the output command queue */ uti596addCmd ( (struct i596_cmd *) sc->pTxCmd ); /* sleep until the command has been processed or Timeout encountered. */ status= rtems_bsdnet_event_receive (INTERRUPT_EVENT, RTEMS_WAIT|RTEMS_EVENT_ANY, RTEMS_NO_TIMEOUT, &events); if ( status != RTEMS_SUCCESSFUL ) { printf("Could not sleep %s\n", rtems_status_text(status)); } #ifdef DBG_RAW printf("RAW: wake\n"); #endif sc->txInterrupts++; #ifdef DEBUG_INIT printf("\nTransmitter issued packet\n"); print_hdr ( sc->pTxCmd->pTbd -> data ); /* print the first part */ print_pkt ( sc->pTxCmd->pTbd ->next-> data ); /* print the first part */ #endif if ( sc->pTxCmd -> cmd.status & STAT_OK ) sc->stats.tx_packets++; else { #ifdef DBG_RAW printf("******Driver Error 0x%x\n", sc->pTxCmd -> cmd.status ); #endif sc->stats.tx_errors++; if ( sc->pTxCmd->cmd.status & 0x0020 ) sc->stats.tx_retries_exceeded++; if (!(sc->pTxCmd->cmd.status & 0x0040)) sc->stats.tx_heartbeat_errors++; if ( sc->pTxCmd->cmd.status & 0x0400 ) sc->stats.tx_carrier_errors++; if ( sc->pTxCmd->cmd.status & 0x0800 ) sc->stats.collisions++; if ( sc->pTxCmd->cmd.status & 0x1000 ) sc->stats.tx_aborted_errors++; } /* end if stat_ok */ /* * Restore the transmited buffer descriptor chain. */ pTbd -> next = pRemainingTbdList; /* * Free the mbufs used by the sender. */ m = input_m; while ( m != NULL ) { MFREE(m,n); m = n; } } /*********************************************************************** * Function: print_eth * * Description: * Print the contents of an ethernet packet header * CANNOT BE CALLED FROM ISR * * Algorithm: * Print Destination, Src, and type of packet * ***********************************************************************/ /* static */ void print_eth(unsigned char *add) { int i; short int length; printf("Packet Location %p\n", add); printf ("Dest "); for (i = 0; i < 6; i++) printf(" %2.2X", add[i]); printf ("\n"); printf ("Source"); for (i = 6; i < 12; i++) printf(" %2.2X", add[i]); printf ("\n"); printf ("frame type %2.2X%2.2X\n", add[12], add[13]); if ( add[12] == 0x08 && add[13] == 0x06 ) { /* an ARP */ printf("Hardware type : %2.2X%2.2X\n", add[14],add[15]); printf("Protocol type : %2.2X%2.2X\n", add[16],add[17]); printf("Hardware size : %2.2X\n", add[18]); printf("Protocol size : %2.2X\n", add[19]); printf("op : %2.2X%2.2X\n", add[20],add[21]); printf("Sender Enet addr: "); for ( i=0; i< 5 ; i++) printf( "%x:", add[22 + i]); printf("%x\n", add[27]); printf("Sender IP addr: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[28 + i]); printf("%u\n", add[31]); printf("Target Enet addr: "); for ( i=0; i< 5 ; i++) printf( "%x:", add[32 + i]); printf("%x\n", add[37]); printf("Target IP addr: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[38 + i]); printf("%u\n", add[41]); } if ( add[12] == 0x08 && add[13] == 0x00 ) { /* an IP packet */ printf("*********************IP HEADER******************\n"); printf("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15]); printf("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] )); printf("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", add[18],add[19], add[20], add[21]); printf("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", add[22],add[23],add[24],add[25]); printf("IP packet type: %2.2X code %2.2X\n", add[34],add[35]); printf("Source IP address: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[26 + i]); printf("%u\n", add[29]); printf("Destination IP address: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[30 + i]); printf("%u\n", add[33]); /* printf("********************IP Packet Data*******************\n"); length -=20; for ( i=0; i < length ; i++) printf("0x%2.2x ", add[34+i]); printf("\n"); printf("ICMP checksum: %2.2x %2.2x\n", add[36], add[37]); printf("ICMP identifier: %2.2x %2.2x\n", add[38], add[39]); printf("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41]); */ } } #ifdef DEBUG_INIT /*********************************************************************** * Function: print_eth * * Description: * Print the contents of an ethernet packet header * CANNOT BE CALLED FROM ISR * * Algorithm: * Print Destination, Src, and type of packet * ***********************************************************************/ /* static */ void print_hdr(unsigned char *add) { int i; short int length; printf("Header Location %p\n", add); printf ("Dest "); for (i = 0; i < 6; i++) printf(" %2.2X", add[i]); printf ("\n"); printf ("Source"); for (i = 6; i < 12; i++) printf(" %2.2X", add[i]); printf ("\n"); printf ("frame type %2.2X%2.2X\n", add[12], add[13]); } /*********************************************************************** * Function: print_pkt * * Description: * Print the contents of an ethernet packet header * CANNOT BE CALLED FROM ISR * * Algorithm: * Print Destination, Src, and type of packet * ***********************************************************************/ /* static */ void print_pkt(unsigned char *add) { int i; short int length; printf("Data Location %p\n", add); if ( add[0] == 0x08 && add[1] == 0x06 ) { /* an ARP */ printf("Hardware type : %2.2X%2.2X\n", add[14],add[15]); printf("Protocol type : %2.2X%2.2X\n", add[16],add[17]); printf("Hardware size : %2.2X\n", add[18]); printf("Protocol size : %2.2X\n", add[19]); printf("op : %2.2X%2.2X\n", add[20],add[21]); printf("Sender Enet addr: "); for ( i=0; i< 5 ; i++) printf( "%x:", add[22 + i]); printf("%x\n", add[27]); printf("Sender IP addr: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[28 + i]); printf("%u\n", add[31]); printf("Target Enet addr: "); for ( i=0; i< 5 ; i++) printf( "%x:", add[32 + i]); printf("%x\n", add[37]); printf("Target IP addr: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[38 + i]); printf("%u\n", add[41]); } if ( add[0] == 0x08 && add[1] == 0x00 ) { /* an IP packet */ printf("*********************IP HEADER******************\n"); printf("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15]); printf("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] )); printf("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", add[18],add[19], add[20], add[21]); printf("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", add[22],add[23],add[24],add[25]); printf("IP packet type: %2.2X code %2.2X\n", add[34],add[35]); printf("Source IP address: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[26 + i]); printf("%u\n", add[29]); printf("Destination IP address: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[30 + i]); printf("%u\n", add[33]); printf("********************IP Packet Data*******************\n"); length -=20; for ( i=0; i < length ; i++) printf("0x%2.2x ", add[34+i]); printf("\n"); printf("ICMP checksum: %2.2x %2.2x\n", add[36], add[37]); printf("ICMP identifier: %2.2x %2.2x\n", add[38], add[39]); printf("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41]); } } /*********************************************************************** * Function: print_echo * * Description: * Print the contents of an ethernet packet header * CANNOT BE CALLED FROM ISR * * Algorithm: * Prints only echo packets * ***********************************************************************/ /* static */ void print_echo(unsigned char *add) { int i; short int length; if ( add[12] == 0x08 && add[13] == 0x00 ){ /* an IP packet */ printf("Packet Location %p\n", add); printf ("Dest "); for (i = 0; i < 6; i++) printf(" %2.2X", add[i]); printf ("\n"); printf ("Source"); for (i = 6; i < 12; i++) printf(" %2.2X", add[i]); printf ("\n"); printf ("frame type %2.2X%2.2X\n", add[12], add[13]); printf("*********************IP HEADER******************\n"); printf("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15]); printf("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] )); printf("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", add[18],add[19], add[20], add[21]); printf("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", add[22],add[23],add[24],add[25]); printf("IP packet type: %2.2X code %2.2X\n", add[34],add[35]); printf("Source IP address: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[26 + i]); printf("%u\n", add[29]); printf("Destination IP address: "); for ( i=0; i< 3 ; i++) printf( "%u.", add[30 + i]); printf("%u\n", add[33]); printf("********************IP Packet Data*******************\n"); length -=20; for ( i=0; i < length ; i++) printf("0x%2.2x ", add[34+i]); printf("\n"); printf("ICMP checksum: %2.2x %2.2x\n", add[36], add[37]); printf("ICMP identifier: %2.2x %2.2x\n", add[38], add[39]); printf("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41]); } } #endif /*********************************************************************** * Function: uti596_attach * * Description: * User requested attach of driver to hardware * * Algorithm: * * Check that the board is present * parse and store the command line parameters * argv[0]: interface label, e.g., "uti596" * argv[1]: maximum transmission unit, bytes, e.g., "1500" * argv[2]: IP address (optional) * initialize required rx and tx buffers * hook interrupt * issue start command and some diagnostics * return * ***********************************************************************/ int uti596_attach(struct rtems_bsdnet_ifconfig * pConfig ) { struct uti596_softc *sc = &uti596_softc; /* soft config */ struct ifnet * ifp = &sc->arpcom.ac_if; int i = 0; #ifdef DBG_ATTACH printf("attach"); #endif sc->started = 0; /* The NIC is not started yet */ sc->ioAddr = IO_ADDR; /* Indicate to ULCS that this is initialized */ ifp->if_softc = sc; sc -> pScp = NULL; /* Assign the name */ ifp->if_name = "uti"; /* Assign the unit number */ ifp->if_unit = 1; /* Assign mtu */ if ( pConfig -> mtu ) ifp->if_mtu = pConfig -> mtu; else ifp->if_mtu = ETHERMTU; /* Assign and possibly override the hw address */ if ( !pConfig->hardware_address) { /* Read the ethernet address from the board */ for (i = 0; i < 8; i++) inport_byte(NIC_ADDR+i,sc->arpcom.ac_enaddr[i] ); } else { /* hwaddr override */ memcpy (sc->arpcom.ac_enaddr, pConfig->hardware_address, ETHER_ADDR_LEN); } /* Test for valid hwaddr */ if(memcmp(sc->arpcom.ac_enaddr,"\xAA\x55\x01",3)!= 0)/* b0 of byte 0 != 0 => multicast */ return ENODEV; /* Assign requested receive buffer descriptor count */ if (pConfig->rbuf_count) sc->rxBdCount = pConfig->rbuf_count; else sc->rxBdCount = RX_BUF_COUNT; /* Assign requested tx buffer descriptor count */ if (pConfig->xbuf_count) sc->txBdCount = pConfig->xbuf_count; else sc->txBdCount = TX_BUF_COUNT * TX_BD_PER_BUF; /* ignore_broadcast is an unused feature... accept broadcast */ /* sc->acceptBroadcast = !pConfig->ignore_broadcast; */ ifp->if_snd.ifq_maxlen = ifqmaxlen; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; /* to init_hardware */ sc->started = 1; sc->pInboundFrameQueue = I596_NULL; ifp->if_ioctl = uti596_ioctl; ifp->if_init = uti596_init; ifp->if_start = uti596_start; ifp->if_output = ether_output; sc->scb.command = 0; /* * Attach the interface */ if_attach (ifp); ether_ifattach (ifp); return 1; } /*********************************************************************** * Function: uti596DynamicInterruptHandler * * Description: * This is the interrupt handler for the uti596 board * * Algorithm: * ***********************************************************************/ /* static */ rtems_isr uti596DynamicInterruptHandler(rtems_vector_number irq) { #ifdef DEBUG_ISR printk("I"); #endif UTI_WAIT_COMMAND_ACCEPTED(20000, "****ERROR:on ISR entry"); if ( !(i8259s_cache & 0x20 )) { printk("****Error: network ISR running, no IRR!\n"); printk("****Error: i8259s_cache = 0x%x\n",i8259s_cache ); printk_time(); } scbStatus = uti596_softc.scb.status & 0xf000; if ( scbStatus ){ /* acknowledge interrupts */ /* printk("***INFO: ACK %x\n", scbStatus);*/ uti596_softc.scb.command = scbStatus; outport_word(CHAN_ATTN, 0); if( uti596_softc.resetDone ) { /* stack is attached */ UTI_WAIT_COMMAND_ACCEPTED(20000, "****ERROR:ACK"); } else { /* printk("***INFO: ACK'd w/o processing. status = %x\n", scbStatus); */ return; } } else { printk("\n***ERROR: Spurious interrupt. Resetting...\n"); uti596_softc.nic_reset = 1; } if ( (scbStatus & SCB_STAT_CX) && !(scbStatus & SCB_STAT_CNA) ){ printk_time(); printk("\n*****ERROR: Command Complete, and CNA available: 0x%x\nResetting...", scbStatus); uti596_softc.nic_reset = 1; return; } if ( !(scbStatus & SCB_STAT_CX) && (scbStatus & SCB_STAT_CNA) ) { printk_time(); printk("\n*****ERROR: CNA, NO CX:0x%x\nResetting...",scbStatus); uti596_softc.nic_reset = 1; return; } if ( scbStatus & SCB_CUS_SUSPENDED ) { printk_time(); printk("\n*****ERROR: Command unit suspended!:0x%x\nResetting...",scbStatus); uti596_softc.nic_reset = 1; return; } if ( scbStatus & RU_SUSPENDED ) { printk_time(); printk("\n*****ERROR: Receive unit suspended!:0x%x\nResetting...",scbStatus); uti596_softc.nic_reset = 1; return; } if ( scbStatus & SCB_STAT_RNR ) { printk_time(); printk("\n*****WARNING: RNR %x\n",scbStatus); printk("*****INFO: RFD cmd: %x status:%x\n", uti596_softc.pBeginRFA -> cmd, uti596_softc.pBeginRFA -> stat); } /* * Receive Unit Control */ if ( scbStatus & SCB_STAT_FR ) { /* a frame has been received */ uti596_softc.rxInterrupts++; #ifdef DBG_FR printk("\nISR:FR\n"); #endif if ( uti596_softc.pBeginRFA == I596_NULL || !( uti596_softc.pBeginRFA -> stat & STAT_C)){ dump_scb(); uti596_softc.nic_reset = 1; } else while ( uti596_softc.pBeginRFA != I596_NULL && ( uti596_softc.pBeginRFA -> stat & STAT_C)) { #ifdef DBG_ISR printk("ISR:pBeginRFA != NULL\n"); #endif count_rx ++; if ( count_rx > 1) printk("****WARNING: Received 2 frames on 1 interrupt \n"); /* * Give Received Frame to the ULCS */ uti596_softc.countRFD--; if ( uti596_softc.countRFD < 0 ) printk("Count < 0 !!!: count == %d, beginRFA = %p\n", uti596_softc.countRFD, uti596_softc.pBeginRFA); uti596_softc.stats.rx_packets++; pIsrRfd = uti596_softc.pBeginRFA -> next; /* the append destroys the link */ uti596append( &uti596_softc.pInboundFrameQueue , uti596_softc.pBeginRFA ); /* * if we have just received the a frame int he last unknown RFD, * then it is certain that the RFA is empty. */ if ( uti596_softc.pLastUnkRFD == uti596_softc.pBeginRFA ) { UTI_596_ASSERT(uti596_softc.pLastUnkRFD != I596_NULL,"****ERROR:LastUnk is NULL, begin ptr @ end!\n"); uti596_softc.pEndRFA = uti596_softc.pLastUnkRFD = I596_NULL; } #ifdef DBG_ISR printk("Wake %#x\n",uti596_softc.rxDaemonTid); #endif sc = rtems_event_send(uti596_softc.rxDaemonTid, INTERRUPT_EVENT); if ( sc != RTEMS_SUCCESSFUL ) rtems_panic ("Can't notify rxDaemon: %s\n", rtems_status_text (sc)); #ifdef DBG_RAW_ISR else printk("Rx Wake: %#x\n",uti596_softc.rxDaemonTid); #endif uti596_softc.pBeginRFA = pIsrRfd; } /* end while */ if ( uti596_softc.pBeginRFA == I596_NULL ){ /* adjust the pEndRFA to reflect an empty list */ if ( uti596_softc.pLastUnkRFD == I596_NULL && uti596_softc.countRFD != 0 ) printk("Last Unk is NULL, BeginRFA is null, and count == %d\n",uti596_softc.countRFD); uti596_softc.pEndRFA = I596_NULL; if ( uti596_softc.countRFD != 0 ) { printk("****ERROR:Count is %d, but begin ptr is NULL\n",uti596_softc.countRFD ); } } } /* end scb_stat_fr */ /* * Check For Command Complete */ if ( scbStatus & SCB_STAT_CX ){ #ifdef DBG_ISR printk("ISR:CU\n"); #endif pIsrCmd = uti596_softc.pCmdHead; /* * For ALL completed commands */ if ( pIsrCmd != I596_NULL && pIsrCmd->status & STAT_C ){ #ifdef DBG_RAW_ISR printk("ISR:pIsrCmd != NULL\n"); #endif /* * Adjust the command block list */ uti596_softc.pCmdHead = pIsrCmd -> next; /* * If there are MORE commands to process, * the serialization in the raw routine has failed. * ( Perhaps AddCmd is bad? ) */ UTI_596_ASSERT(uti596_softc.pCmdHead == I596_NULL, "****ERROR: command serialization failed\n"); /* * What if the command did not complete OK? */ switch ( pIsrCmd->command & 0x7) { case CmdConfigure: /* printk("****INFO:Configure OK\n"); */ uti596_softc.cmdOk = 1; break; case CmdDump: #ifdef DBG_ISR printk("dump!\n"); #endif uti596_softc.cmdOk = 1; break; case CmdDiagnose: #ifdef DBG_ISR printk("diagnose!\n"); #endif uti596_softc.cmdOk = 1; break; case CmdSASetup: /* printk("****INFO:Set address interrupt\n"); */ if ( pIsrCmd -> status & STAT_OK ) uti596_softc.cmdOk = 1; else printk("****ERROR:SET ADD FAILED\n"); break; case CmdTx: { UTI_596_ASSERT(uti596_softc.txDaemonTid, "****ERROR:Null txDaemonTid\n"); #ifdef DBG_ISR printk("wake TX:0x%x\n",uti596_softc.txDaemonTid); #endif if ( uti596_softc.txDaemonTid ){ /* Ensure that the transmitter is present */ sc = rtems_event_send (uti596_softc.txDaemonTid, INTERRUPT_EVENT); if ( sc != RTEMS_SUCCESSFUL ) printk("****ERROR:Could NOT send event to tid 0x%x : %s\n", uti596_softc.txDaemonTid, rtems_status_text (sc) ); #ifdef DBG_RAW_ISR else printk("****INFO:Tx wake: %#x\n",uti596_softc.txDaemonTid); #endif } } /* End case Cmd_Tx */ break; case CmdMulticastList: printk("***ERROR:Multicast?!\n"); pIsrCmd->next = I596_NULL; break; case CmdTDR: { unsigned long status = *( (unsigned long *)pIsrCmd)+1; printk("****ERROR:TDR?!\n"); if (status & STAT_C) { /* * mark the TDR command successful */ uti596_softc.cmdOk = 1; } else { if (status & 0x4000) printk("****WARNING:Transceiver problem.\n"); if (status & 0x2000) printk("****WARNING:Termination problem.\n"); if (status & 0x1000) printk("****WARNING:Short circuit.\n"); /* printk("****INFO:Time %ld.\n", status & 0x07ff); */ } } break; default: /* * This should never be reached */ printk("CX but NO known command\n"); } /* end switch */ pIsrCmd = uti596_softc.pCmdHead; /* next command */ if ( pIsrCmd != I596_NULL ) printk("****WARNING: more commands in list, but no start to NIC\n"); } /* end if pIsrCmd != NULL && pIsrCmd->stat & STAT_C */ else { if ( pIsrCmd != I596_NULL ) { /* The command MAY be NULL from a RESET */ /* Reset the ethernet card, and wake the transmitter (if necessary) */ printk_time(); printk("****INFO: Request board reset ( tx )\n"); uti596_softc.nic_reset = 1; if ( uti596_softc.txDaemonTid){ /* Ensure that a transmitter is present */ sc = rtems_event_send (uti596_softc.txDaemonTid, INTERRUPT_EVENT); if ( sc != RTEMS_SUCCESSFUL ) printk("****ERROR:Could NOT send event to tid 0x%x : %s\n",uti596_softc.txDaemonTid, rtems_status_text (sc) ); #ifdef DBG_RAW_ISR else printk("****INFO:Tx wake: %#x\n",uti596_softc.txDaemonTid); #endif } } } } /* end if command complete */ /* if the receiver has stopped, * check if this is a No Resources scenario, * Try to add more RFD's ( no RBDs are used ) */ if ( uti596_softc.started ) { if ( scbStatus & SCB_STAT_RNR ){ #ifdef DBG_ISR printk("INFO:RNR: status %#x \n", uti596_softc.scb.status ); #endif /* * THE RECEIVER IS OFF! */ if ( uti596_softc.pLastUnkRFD != I596_NULL ){ /* We have an unknown RFD, it is not inbound*/ if ( uti596_softc.pLastUnkRFD -> stat & (STAT_C | STAT_B )) /* in use */ uti596_softc.pEndRFA = uti596_softc.pLastUnkRFD; /* update end */ else { /* * It is NOT in use, and since RNR, we know EL bit of pEndRFA was read! * So, unlink it from the RFA and move it to the saved queue. * But pBegin can equal LastUnk! */ if ( uti596_softc.pEndRFA != I596_NULL ){ /* check added feb24. */ #ifdef DEBUG_RFA if (uti596_softc.pEndRFA -> next != uti596_softc.pLastUnkRFD){ printk("***ERROR:UNK: %p not end->next: %p, end: %p\n", uti596_softc.pLastUnkRFD,uti596_softc.pEndRFA -> next,uti596_softc.pEndRFA); printk("***INFO:countRFD now %d\n", uti596_softc.countRFD); printk("\n\n"); } #endif uti596_softc.pEndRFA -> next = I596_NULL; /* added feb 16 */ } uti596append( &uti596_softc.pSavedRfdQueue, uti596_softc.pLastUnkRFD ); uti596_softc.savedCount++; uti596_softc.pEndSavedQueue = uti596_softc.pLastUnkRFD; uti596_softc.countRFD--; /* It was not in the RFA */ /* * The Begin pointer CAN advance this far. We must resynch the CPU side * with the chip. */ if ( uti596_softc.pBeginRFA == uti596_softc.pLastUnkRFD ) { #ifdef DEBUG_RFA if ( uti596_softc.countRFD != 0 ) { printk("****INFO:About to set begin to NULL, with count == %d\n", uti596_softc.countRFD ); printk("\n\n"); } #endif uti596_softc.pBeginRFA = I596_NULL; UTI_596_ASSERT(uti596_softc.countRFD == 0,"****ERROR:Count must be zero here!\n"); } } uti596_softc.pLastUnkRFD = I596_NULL; } /* end if exists UnkRFD */ /* * Append the saved queue to the RFA. * Any further RFD's being supplied will be added to * this new list. */ if ( uti596_softc.pSavedRfdQueue != I596_NULL ) { /* entries to add */ if ( uti596_softc.pBeginRFA == I596_NULL ) { /* add at beginning to list */ #ifdef DEBUG_RFA if(uti596_softc.countRFD != 0) { printk("****ERROR:Begin pointer is NULL, but count == %d\n",uti596_softc.countRFD); } #endif uti596_softc.pBeginRFA = uti596_softc.pSavedRfdQueue; uti596_softc.pEndRFA = uti596_softc.pEndSavedQueue; uti596_softc.pSavedRfdQueue = uti596_softc.pEndSavedQueue = I596_NULL; /* Reset the End */ } else { #ifdef DEBUG_RFA if ( uti596_softc.countRFD <= 0) { printk("****ERROR:Begin pointer is not NULL, but count == %d\n",uti596_softc.countRFD); } #endif UTI_596_ASSERT( uti596_softc.pEndRFA != I596_NULL, "****WARNING: END RFA IS NULL\n"); UTI_596_ASSERT( uti596_softc.pEndRFA->next == I596_NULL, "****ERROR:END RFA -> next must be NULL\n"); uti596_softc.pEndRFA->next = uti596_softc.pSavedRfdQueue; uti596_softc.pEndRFA->cmd &= ~CMD_EOL; /* clear the end of list */ uti596_softc.pEndRFA = uti596_softc.pEndSavedQueue; uti596_softc.pSavedRfdQueue = uti596_softc.pEndSavedQueue = I596_NULL; /* Reset the End */ #ifdef DEBUG_ISR printk("count: %d, saved: %d \n", uti596_softc.countRFD , uti596_softc.savedCount); #endif } /* printk("Isr: countRFD = %d\n",uti596_softc.countRFD); */ uti596_softc.countRFD += uti596_softc.savedCount; /* printk("Isr: after countRFD = %d\n",uti596_softc.countRFD); */ uti596_softc.savedCount = 0; } #ifdef DBG_596_RFD printk("The list starts here %p\n",uti596_softc.pBeginRFA ); #endif if ( uti596_softc.countRFD > 1) { /****REMOVED FEB 18. && !( uti596_softc.pBeginRFA -> stat & (STAT_C | STAT_B ))) { *****/ printk_time(); printk("****INFO: pBeginRFA -> stat = 0x%x\n",uti596_softc.pBeginRFA -> stat); printk("****INFO: pBeginRFA -> cmd = 0x%x\n",uti596_softc.pBeginRFA -> cmd); uti596_softc.pBeginRFA -> stat = 0; UTI_596_ASSERT(uti596_softc.scb.command == 0, "****ERROR:scb command must be zero\n"); uti596_softc.scb.pRfd = uti596_softc.pBeginRFA; /* start RX here */ printk("****INFO: ISR Starting receiver\n"); uti596_softc.scb.command = RX_START; /* should this also be CU start? */ outport_word(CHAN_ATTN, 0); } /*****REMOVED FEB 18. else { printk("****WARNING: Receiver NOT Started -- countRFD = %d\n", uti596_softc.countRFD); printk("82596 cmd: 0x%x, status: 0x%x RFA len: %d\n", uti596_softc.scb.command, uti596_softc.scb.status, uti596_softc.countRFD); printk("\nRFA: \n"); for ( pISR_Rfd = uti596_softc.pBeginRFA; pISR_Rfd != I596_NULL; pISR_Rfd = pISR_Rfd->next) printk("Frame @ %x, status: %x, cmd: %x\n", pISR_Rfd, pISR_Rfd->stat, pISR_Rfd->cmd); printk("\nInbound: \n"); for ( pISR_Rfd = uti596_softc.pInboundFrameQueue; pISR_Rfd != I596_NULL; pISR_Rfd = pISR_Rfd->next) printk("Frame @ %x, status: %x, cmd: %x\n", pISR_Rfd, pISR_Rfd->stat, pISR_Rfd->cmd); printk("\nSaved: \n"); for ( pISR_Rfd = uti596_softc.pSavedRfdQueue; pISR_Rfd != I596_NULL; pISR_Rfd = pISR_Rfd->next) printk("Frame @ %x, status: %x, cmd: %x\n", pISR_Rfd, pISR_Rfd->stat, pISR_Rfd->cmd); printk("\nUnknown: %p\n",uti596_softc.pLastUnkRFD); } *****/ } /* end stat_rnr */ } /* end if receiver started */ /* UTI_596_ASSERT(uti596_softc.scb.status == scbStatus, "****WARNING:scbStatus change!\n"); */ #ifdef DBG_ISR printk("X\n"); #endif count_rx=0; /* * Do this last, to ensure that the reset is called at the right time. */ if ( uti596_softc.nic_reset ){ uti596_softc.nic_reset = 0; sc = rtems_event_send(uti596_softc.resetDaemonTid, NIC_RESET_EVENT); if ( sc != RTEMS_SUCCESSFUL ) rtems_panic ("Can't notify resetDaemon: %s\n", rtems_status_text (sc)); } return; } /*********************************************************************** * Function: void uti596dequeue * * Description: * removes an RFD from the received frame queue, * * Algorithm: * ***********************************************************************/ struct i596_rfd * uti596dequeue( struct i596_rfd ** ppQ ) { ISR_Level level; struct i596_rfd * pRfd; _ISR_Disable(level); /* invalid address, or empty queue or emptied queue */ if( ppQ == NULL || *ppQ == NULL || *ppQ == I596_NULL) { _ISR_Enable(level); return I596_NULL; } pRfd = *ppQ; /* The dequeued buffer */ *ppQ = pRfd->next; /* advance the queue pointer */ pRfd->next = I596_NULL; /* unlink the rfd being returned */ _ISR_Enable(level); return pRfd; } /*********************************************************************** * Function: void uti596append * * Description: * adds an RFD to the end of the received frame queue, * for processing by the rxproc. * Also removes this RFD from the RFA * * Algorithm: * ***********************************************************************/ void uti596append( struct i596_rfd ** ppQ , struct i596_rfd * pRfd ) { struct i596_rfd *p; if ( pRfd != NULL && pRfd != I596_NULL) { pRfd -> next = I596_NULL; pRfd -> cmd |= CMD_EOL; /* set EL bit */ if ( *ppQ == NULL || *ppQ == I596_NULL ) { /* Empty or emptied */ *ppQ = pRfd; } else { for ( p=*ppQ; p -> next != I596_NULL; p=p->next) ; p->cmd &= ~CMD_EOL; /* Clear EL bit at end */ p->next = pRfd; } } else printf("Illegal attempt to append: %p\n", pRfd); } /*********************************************************************** * Function: uti596stop * * Description: * stop the driver * * Algorithm: * mark driver as not started, * mark transmitter as busy * abort any transmissions/receptions * clean-up all buffers ( RFD's et. al. ) * * * * ***********************************************************************/ /* static */ void uti596_stop(struct uti596_softc *sc) { sc->started = 0; #ifdef DBG_596 printf("%s: Shutting down ethercard, status was %4.4x.\n", uti596_softc.pIface->name, uti596_softc.scb.status); #endif printf("Stopping interface\n"); sc->scb.command = CUC_ABORT|RX_ABORT; outport_word( CHAN_ATTN, 0 ); } static int uti596_ioctl (struct ifnet *ifp, int command, caddr_t data) { struct uti596_softc *sc = ifp->if_softc; int error = 0; switch (command) { case SIOCGIFADDR: case SIOCSIFADDR: printk("SIOCSIFADDR\n"); ether_ioctl (ifp, command, data); break; case SIOCSIFFLAGS: printk("SIOCSIFFLAGS\n"); switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { case IFF_RUNNING: printk("IFF_RUNNING\n"); uti596_stop (sc); break; case IFF_UP: printk("IFF_UP\n"); uti596_init (sc); break; case IFF_UP | IFF_RUNNING: printk("IFF_UP and RUNNING\n"); uti596_stop (sc); uti596_init (sc); break; default: printk("default\n"); break; } break; case SIO_RTEMS_SHOW_STATS: printk("show stats\n"); uti596_stats (sc); break; /* * FIXME: All sorts of multicast commands need to be added here! */ default: printk("default: EINVAL\n"); error = EINVAL; break; } return error; } /*********************************************************************** * Function: uti596_stats * * Description: * print out the collected data * * Algorithm: * use printf * ***********************************************************************/ void uti596_stats(struct uti596_softc *sc) { printf(" CPU Reports:\n"); printf ("Tx raw send count:%-8lu", sc->rawsndcnt); printf ("Rx Interrupts:%-8lu", sc->rxInterrupts); printf ("Tx Interrupts:%-8lu\n", sc->txInterrupts); printf ("Rx Packets:%-8u", sc->stats.rx_packets); printf ("Tx Attempts:%-u\n", sc->stats.tx_packets); printf ("Rx Dropped:%-8u", sc->stats.rx_dropped); printf ("Rx IP Packets:%-8u", sc->stats.rx_packets); printf ("Tx Errors:%-8u\n", sc->stats.tx_errors); printf ("Tx aborted:%-8u", sc->stats.tx_aborted_errors); printf ("Tx Dropped:%-8u\n", sc->stats.tx_dropped); printf ("Tx IP packets:%-8u", sc->stats.tx_packets); printf ("Collisions Detected:%-8u\n", sc->stats.collisions); printf ("Tx Heartbeat Errors:%-8u", sc->stats.tx_heartbeat_errors); printf ("Tx Carrier Errors:%-8u\n", sc->stats.tx_carrier_errors); printf ("Tx Aborted Errors:%-8u", sc->stats.tx_aborted_errors); printf ("Rx Length Errors:%-8u\n", sc->stats.rx_length_errors); printf ("Rx Overrun Errors:%-8u", sc->stats.rx_over_errors); printf ("Rx Fifo Errors:%-8u\n", sc->stats.rx_fifo_errors); printf ("Rx Framing Errors:%-8u", sc->stats.rx_frame_errors); printf ("Rx crc errors:%-8u\n", sc->stats.rx_crc_errors); printf ("TX WAITS: %-8lu\n", sc->txRawWait); printf ("NIC resets: %-8u\n", sc->stats.nic_reset_count); printf("NIC reports\n"); dump_scb(); } void dumpQ(void) { struct i596_rfd *pRfd; printf("savedQ:\n"); for( pRfd = uti596_softc.pSavedRfdQueue; pRfd != I596_NULL; pRfd = pRfd -> next) printf("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd); printf("Inbound:\n"); for( pRfd = uti596_softc.pInboundFrameQueue; pRfd != I596_NULL; pRfd = pRfd -> next) printf("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd); printf("Last Unk: %p\n", uti596_softc.pLastUnkRFD ); printf("RFA:\n"); for( pRfd = uti596_softc.pBeginRFA; pRfd != I596_NULL; pRfd = pRfd -> next) printf("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd); } void uti596Diagnose(int verbose){ struct i596_cmd diagnose; int count=10000; diagnose.command = CmdDiagnose; diagnose.status = 0; uti596addPolledCmd(&diagnose); while( !( diagnose.status & STAT_C ) && count ) { if(verbose) printf("."); count --; } if(verbose) printf("Status diagnostic: 0x%2.2x\n", diagnose.status); } void show_buffers (void) { struct i596_rfd *pRfd; printf("82596 cmd: 0x%x, status: 0x%x RFA len: %d\n", uti596_softc.scb.command, uti596_softc.scb.status, uti596_softc.countRFD); printf("\nRFA: \n"); for ( pRfd = uti596_softc.pBeginRFA; pRfd != I596_NULL; pRfd = pRfd->next) printf("Frame @ %p, status: %2.2x, cmd: %2.2x\n", pRfd, pRfd->stat, pRfd->cmd); printf("\nInbound: \n"); for ( pRfd = uti596_softc.pInboundFrameQueue; pRfd != I596_NULL; pRfd = pRfd->next) printf("Frame @ %p, status: %2.2x, cmd: %2.2x\n", pRfd, pRfd->stat, pRfd->cmd); printf("\nSaved: \n"); for ( pRfd = uti596_softc.pSavedRfdQueue; pRfd != I596_NULL; pRfd = pRfd->next) printf("Frame @ %p, status: %2.2x, cmd: %2.2x\n", pRfd, pRfd->stat, pRfd->cmd); printf("\nUnknown: %p\n",uti596_softc.pLastUnkRFD); } void show_queues(void) { struct i596_rfd *pRfd; printf("CMD: 0x%x, Status: 0x%x\n", uti596_softc.scb.command, uti596_softc.scb.status); printf("saved Q\n"); for ( pRfd = uti596_softc.pSavedRfdQueue; pRfd != I596_NULL && pRfd != NULL; pRfd = pRfd->next) printf("0x%p\n", pRfd); printf("End saved Q 0x%p\n", uti596_softc.pEndSavedQueue); printf("\nRFA:\n"); for ( pRfd = uti596_softc.pBeginRFA; pRfd != I596_NULL && pRfd != NULL; pRfd = pRfd->next) printf("0x%p\n", pRfd); printf("uti596_softc.pEndRFA: %p\n",uti596_softc.pEndRFA); } void uti596_init(void * arg){ struct uti596_softc *sc = arg; struct ifnet *ifp = &sc->arpcom.ac_if; rtems_status_code status_code; if (sc->txDaemonTid == 0) { uti596_initialize_hardware(sc); /* * Start driver tasks */ sc->txDaemonTid = rtems_bsdnet_newproc ("UTtx", 2*4096, uti596_txDaemon, sc); sc->rxDaemonTid = rtems_bsdnet_newproc ("UTrx", 2*4096, uti596_rxDaemon, sc); sc->resetDaemonTid = rtems_bsdnet_newproc ("UTrt", 2*4096, uti596_resetDaemon, sc); #ifdef DBG_INIT printf("After attach, status of board = 0x%x\n", sc->scb.status ); #endif outport_word(0x380, 0xf); /* reset the LED's */ } /* * Enable receiver */ UTI_WAIT_COMMAND_ACCEPTED(4000, "init:Before RX_START"); sc->scb.pRfd = sc -> pBeginRFA; sc->scb.command = RX_START; outport_word(CHAN_ATTN,0 ); UTI_WAIT_COMMAND_ACCEPTED(4000, "init:RX_START"); /* * Tell the world that we're running. */ ifp->if_flags |= IFF_RUNNING; } void dump_scb(void){ printk("status 0x%x\n",uti596_softc.scb.status); printk("command 0x%x\n",uti596_softc.scb.command); printk("cmd 0x%x\n",(int)uti596_softc.scb.pCmd); printk("rfd 0x%x\n",(int)uti596_softc.scb.pRfd); printk("crc_err 0x%x\n",uti596_softc.scb.crc_err); printk("align_err 0x%x\n",uti596_softc.scb.align_err); printk("resource_err 0x%x\n",uti596_softc.scb.resource_err ); printk("over_err 0x%x\n",uti596_softc.scb.over_err); printk("rcvdt_err 0x%x\n",uti596_softc.scb.rcvdt_err); printk("short_err 0x%x\n",uti596_softc.scb.short_err); printk("t_on 0x%x\n",uti596_softc.scb.t_on); printk("t_off 0x%x\n",uti596_softc.scb.t_off); } void printk_time(void){ rtems_time_of_day tm_struct; rtems_clock_get(RTEMS_CLOCK_GET_TOD, &tm_struct); printk("Current time: %d:%d:%d \n", tm_struct.hour, tm_struct.minute, tm_struct.second); }