[5a23ca84] | 1 | /* uti596.c: An 82596 ethernet driver for rtems-bsd. |
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| 2 | * |
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| 3 | * $Id$ |
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| 4 | */ |
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| 5 | |
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| 6 | #define KERNEL |
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| 7 | |
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| 8 | /* |
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| 9 | * Selectively define to debug the network driver. If you define any of these |
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| 10 | * you must run with polled console I/O. |
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| 11 | */ |
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| 12 | |
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| 13 | #define DBG_596 |
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| 14 | #define DBG_596_RFA |
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| 15 | #define DBG_START |
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| 16 | #define DBG_INIT |
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| 17 | #define DBG_INIT_2 |
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| 18 | /*#define DBG_INIT_3*/ |
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| 19 | #define DBG_RESET |
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| 20 | #define DBG_VERSION |
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| 21 | #define DBG_ISR |
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| 22 | #define DBG_RAW_ISR |
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| 23 | #define DBG_596_RFD |
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| 24 | #define DBG_FR |
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| 25 | #define DBG_RAW |
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| 26 | #define DBG_ATTACH |
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| 27 | #define DBG_POLLED_CMD |
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| 28 | #define DBG_ADD |
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| 29 | #define DBG_SUPPLY_FD |
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| 30 | |
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| 31 | |
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| 32 | /* |
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| 33 | * Default number of buffer descriptors and buffer sizes. |
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| 34 | */ |
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| 35 | #define RX_BUF_COUNT 15 |
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| 36 | #define TX_BUF_COUNT 4 |
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| 37 | #define TX_BD_PER_BUF 4 |
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| 38 | |
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| 39 | #define RBUF_SIZE 1520 |
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| 40 | |
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| 41 | #define UTI_596_ETH_MIN_SIZE 60 |
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| 42 | |
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| 43 | /* |
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| 44 | * RTEMS events |
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| 45 | */ |
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| 46 | #define INTERRUPT_EVENT RTEMS_EVENT_1 |
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| 47 | #define START_TRANSMIT_EVENT RTEMS_EVENT_2 |
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| 48 | #define NIC_RESET_EVENT RTEMS_EVENT_3 |
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| 49 | |
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| 50 | |
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| 51 | #include <bsp.h> |
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| 52 | #include <stdio.h> |
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| 53 | |
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| 54 | #include <rtems/error.h> |
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| 55 | #include <rtems/rtems_bsdnet.h> |
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| 56 | #include <sys/param.h> |
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| 57 | #include <sys/mbuf.h> |
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| 58 | #include <sys/socket.h> |
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| 59 | #include <sys/sockio.h> |
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| 60 | #include <net/if.h> |
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| 61 | #include <netinet/in.h> |
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| 62 | #include <netinet/if_ether.h> |
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| 63 | |
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| 64 | #include "uti596.h" |
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| 65 | #include "netexterns.h" |
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| 66 | |
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| 67 | #if CD2401_POLLED_IO == 1 |
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| 68 | #define printk(arglist) printk arglist; |
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| 69 | #else |
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| 70 | #define printk(arglist) |
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| 71 | #endif |
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| 72 | |
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| 73 | #define UTI_596_ASSERT( condition, str ) if (!( condition ) ) { printk((str)) } |
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| 74 | |
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| 75 | int count_rx = 0; |
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| 76 | i596_rfd *pISR_Rfd; |
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| 77 | |
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| 78 | static uti596_softc_ uti596_softc; |
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| 79 | |
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| 80 | static int scbStatus; |
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| 81 | static rtems_status_code sc; |
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| 82 | static i596_cmd *pIsrCmd; |
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| 83 | static i596_rfd *pIsrRfd; |
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| 84 | |
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| 85 | /* |
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| 86 | * Initial 596 configuration |
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| 87 | */ |
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| 88 | char uti596initSetup[] = { |
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| 89 | 0x0E, /* Byte 0: length, prefetch off ( no RBD's ) */ |
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| 90 | 0xC8, /* Byte 1: fifo to 8, monitor off */ |
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| 91 | 0x40, /* Byte 2: don't save bad frames ( was save= 80, use intel's 40 )*/ |
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| 92 | 0x2E, /* Byte 3: No source address insertion, 8 byte preamble */ |
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| 93 | 0x00, /* Byte 4: priority and backoff defaults */ |
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| 94 | 0x60, /* Byte 5: interframe spacing */ |
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| 95 | 0x00, /* Byte 6: slot time LSB */ |
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| 96 | 0xf2, /* Byte 7: slot time and retries */ |
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| 97 | 0x0E, /* Byte 8: not promisc, disable bcast, tx no crs, crc inserted 32bit, 802.3 framing */ |
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| 98 | 0x08, /* Byte 9: collision detect */ |
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| 99 | 0x40, /* Byte 10: minimum frame length */ |
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| 100 | 0xfb, /* Byte 11: tried C8 same as byte 1 in bits 6-7, else ignored*/ |
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| 101 | 0x00, /* Byte 12: disable full duplex */ |
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| 102 | 0x3f /* Byte 13: no multi IA, backoff enabled */ |
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| 103 | }; |
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| 104 | |
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| 105 | |
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| 106 | /* Required RTEMS network driver functions and tasks (reset daemon extra) */ |
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| 107 | |
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| 108 | static void uti596_start( struct ifnet * ); |
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| 109 | void uti596_init( void * ); |
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| 110 | void uti596_stop( uti596_softc_ * ); |
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| 111 | void uti596_txDaemon( void * ); |
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| 112 | void uti596_rxDaemon( void * ); |
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| 113 | void uti596_resetDaemon( void * ); |
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| 114 | rtems_isr uti596_DynamicInterruptHandler (rtems_vector_number ); |
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| 115 | static int uti596_ioctl( struct ifnet *, int, caddr_t ); |
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| 116 | void uti596_stats( uti596_softc_ * ); |
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| 117 | |
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| 118 | /* Local Routines */ |
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| 119 | |
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| 120 | void uti596_initialize_hardware( uti596_softc_ * ); |
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| 121 | void uti596_initMem( uti596_softc_ * ); |
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| 122 | int uti596_initRFA( int ); |
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| 123 | void uti596addPolledCmd( i596_cmd * ); |
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| 124 | void uti596Diagnose( int ); |
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| 125 | i596_rfd * uti596dequeue( i596_rfd ** ); |
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| 126 | void uti596reset( void ); |
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| 127 | void uti596_reset_hardware( uti596_softc_ *); |
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| 128 | void uti596clearListStatus( i596_rfd * ); |
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| 129 | void send_packet( struct ifnet *, struct mbuf * ); |
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| 130 | void uti596addCmd( i596_cmd *pCmd ); |
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| 131 | void uti596supplyFD( i596_rfd * ); |
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| 132 | void uti596append( i596_rfd ** , i596_rfd * ); |
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| 133 | |
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| 134 | void printk_time( void ); |
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| 135 | void dump_scb( void ); |
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| 136 | |
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| 137 | #ifdef DBG_INIT_3 |
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| 138 | static void print_eth ( unsigned char * ); |
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| 139 | static void print_hdr ( unsigned char * ); |
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| 140 | static void print_pkt ( unsigned char * ); |
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| 141 | static void print_echo ( unsigned char * ); |
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| 142 | #endif |
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| 143 | |
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| 144 | int uti596dump( char * ); |
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| 145 | void dumpQ( void ); |
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| 146 | void show_buffers( void ); |
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| 147 | void show_queues( void ); |
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| 148 | |
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| 149 | /* Helper function for reading/writing big endian memory structures */ |
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| 150 | unsigned long word_swap(unsigned long); |
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| 151 | |
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| 152 | |
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| 153 | /* Waits for the command word to clear. The command word is cleared AFTER the interrupt is |
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| 154 | * generated. This allows the CPU to issue the next command |
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| 155 | */ |
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| 156 | #define UTI_WAIT_COMMAND_ACCEPTED(duration,function) \ |
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| 157 | { rtems_interval ticks_per_second, start_ticks, end_ticks; \ |
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| 158 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_PER_SECOND, &ticks_per_second); \ |
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| 159 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); \ |
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| 160 | end_ticks = start_ticks + ticks_per_second; \ |
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| 161 | do { \ |
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| 162 | if (uti596_softc.scb.command == 0) \ |
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| 163 | break; \ |
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| 164 | else { \ |
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| 165 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); \ |
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| 166 | } \ |
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| 167 | } while (start_ticks <= end_ticks); \ |
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| 168 | if ((uti596_softc.scb.command != 0) || (start_ticks > end_ticks)) \ |
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| 169 | printf("%s: i82596 timed out with status %x, cmd %x.\n", function, \ |
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| 170 | uti596_softc.scb.status, uti596_softc.scb.command); \ |
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| 171 | } |
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| 172 | |
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| 173 | #define UTI_WAIT_TICKS \ |
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| 174 | { rtems_interval ticks_per_second, start_ticks, end_ticks; \ |
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| 175 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_PER_SECOND, &ticks_per_second); \ |
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| 176 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); \ |
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| 177 | end_ticks = start_ticks + ticks_per_second; \ |
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| 178 | do { \ |
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| 179 | rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start_ticks); \ |
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| 180 | } while (start_ticks <= end_ticks); \ |
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| 181 | } |
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| 182 | /************************************************************************/ |
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| 183 | |
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| 184 | |
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| 185 | /*********************************************************************** |
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| 186 | * Function: uti596_attach |
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| 187 | * |
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| 188 | * Description: |
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| 189 | * Configure the driver, and connect to the network stack |
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| 190 | * |
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| 191 | * Algorithm: |
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| 192 | * |
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| 193 | * Check parameters in the ifconfig structure, and |
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| 194 | * set driver parameters accordingly. |
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| 195 | * initialize required rx and tx buffers |
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| 196 | * link driver data structure onto device list |
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| 197 | * return 1 on successful completion |
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| 198 | * |
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| 199 | ***********************************************************************/ |
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| 200 | |
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| 201 | int uti596_attach( |
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| 202 | struct rtems_bsdnet_ifconfig * pConfig |
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| 203 | ) |
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| 204 | { |
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| 205 | uti596_softc_ *sc = &uti596_softc; /* device dependent data structure */ |
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| 206 | struct ifnet * ifp = &sc->arpcom.ac_if; /* ifnet structure */ |
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| 207 | |
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| 208 | int unitNumber; |
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| 209 | char *unitName; |
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| 210 | |
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| 211 | #ifdef DBG_ATTACH |
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| 212 | printk(("uti596_attach: begins\n")) |
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| 213 | #endif |
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| 214 | |
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| 215 | /* The NIC is not started yet */ |
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| 216 | sc->started = 0; |
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| 217 | |
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| 218 | /* Indicate to ULCS that this is initialized */ |
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| 219 | ifp->if_softc = sc; |
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| 220 | sc->pScp = NULL; |
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| 221 | |
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| 222 | /* Parse driver name */ |
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| 223 | if ((unitNumber = rtems_bsdnet_parse_driver_name (pConfig, &unitName)) < 0) |
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| 224 | return 0; |
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| 225 | |
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| 226 | ifp->if_name = unitName; |
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| 227 | ifp->if_unit = unitNumber; |
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| 228 | |
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| 229 | /* Assign mtu */ |
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| 230 | if ( pConfig -> mtu ) |
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| 231 | ifp->if_mtu = pConfig -> mtu; |
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| 232 | else |
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| 233 | ifp->if_mtu = ETHERMTU; |
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| 234 | |
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| 235 | /* For now the ethernet address must be specified in the ifconfig structure, |
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| 236 | * else FIXME so it can be read in from BBRAM at $FFFC1F2C (6 bytes) |
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| 237 | * mvme167 manual p. 1-47 |
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| 238 | */ |
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| 239 | if ( pConfig->hardware_address) { |
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| 240 | memcpy (sc->arpcom.ac_enaddr, pConfig->hardware_address, ETHER_ADDR_LEN); |
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| 241 | } |
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| 242 | |
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| 243 | /* Assign requested receive buffer descriptor count */ |
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| 244 | if (pConfig->rbuf_count) |
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| 245 | sc->rxBdCount = pConfig->rbuf_count; |
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| 246 | else |
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| 247 | sc->rxBdCount = RX_BUF_COUNT; |
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| 248 | |
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| 249 | /* Assign requested tx buffer descriptor count */ |
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| 250 | if (pConfig->xbuf_count) |
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| 251 | sc->txBdCount = pConfig->xbuf_count; |
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| 252 | else |
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| 253 | sc->txBdCount = TX_BUF_COUNT * TX_BD_PER_BUF; |
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| 254 | |
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| 255 | /* Set up fields in the ifnet structure*/ |
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| 256 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; |
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| 257 | ifp->if_snd.ifq_maxlen = ifqmaxlen; |
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| 258 | ifp->if_init = uti596_init; |
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| 259 | ifp->if_ioctl = uti596_ioctl; |
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| 260 | ifp->if_start = uti596_start; |
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| 261 | ifp->if_output = ether_output; |
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| 262 | |
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| 263 | /* uti596_softc housekeeping */ |
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| 264 | sc->started = 1; |
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| 265 | sc->pInboundFrameQueue = I596_NULL; |
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| 266 | sc->scb.command = 0; |
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| 267 | |
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| 268 | /* |
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| 269 | * Attach the interface |
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| 270 | */ |
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| 271 | if_attach (ifp); |
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| 272 | ether_ifattach (ifp); |
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| 273 | return 1; |
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| 274 | } |
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| 275 | |
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| 276 | /*********************************************************************** |
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| 277 | * Function: uti596_start |
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| 278 | * |
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| 279 | * Description: |
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| 280 | * start the driver |
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| 281 | * |
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| 282 | * Algorithm: |
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| 283 | * send an event to the tx task |
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| 284 | * set the if_flags |
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| 285 | * |
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| 286 | ***********************************************************************/ |
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| 287 | static void uti596_start( |
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| 288 | struct ifnet *ifp |
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| 289 | ) |
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| 290 | { |
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| 291 | uti596_softc_ *sc = ifp->if_softc; |
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| 292 | #ifdef DBG_INIT |
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| 293 | printk(("uti596_start: begins\n")) |
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| 294 | #endif |
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| 295 | rtems_event_send (sc->txDaemonTid, START_TRANSMIT_EVENT); |
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| 296 | ifp->if_flags |= IFF_OACTIVE; |
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| 297 | } |
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| 298 | |
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| 299 | /*********************************************************************** |
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| 300 | * Function: uti596_init |
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| 301 | * |
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| 302 | * Description: |
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| 303 | * driver initialization |
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| 304 | * |
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| 305 | * Algorithm: |
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| 306 | * initialize the 82596 |
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| 307 | * start driver tx and rx tasks, and reset task |
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| 308 | * send the RX_START command the the RU |
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| 309 | * set if_flags |
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| 310 | * |
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| 311 | * |
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| 312 | ***********************************************************************/ |
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| 313 | void uti596_init( |
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| 314 | void * arg |
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| 315 | ) |
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| 316 | { |
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| 317 | uti596_softc_ *sc = arg; |
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| 318 | struct ifnet *ifp = &sc->arpcom.ac_if; |
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| 319 | |
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| 320 | if (sc->txDaemonTid == 0) { |
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| 321 | |
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| 322 | /* |
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| 323 | * Initialize the 82596 |
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| 324 | */ |
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| 325 | #ifdef DBG_INIT |
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| 326 | printk(("uti596_init: begins\nuti596_init: initializing the 82596...\n")) |
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| 327 | #endif |
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| 328 | uti596_initialize_hardware(sc); |
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| 329 | |
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| 330 | /* |
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| 331 | * Start driver tasks |
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| 332 | */ |
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| 333 | #ifdef DBG_INIT |
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| 334 | printk(("uti596_init: starting driver tasks...\n")) |
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| 335 | #endif |
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| 336 | sc->txDaemonTid = rtems_bsdnet_newproc ("UTtx", 2*4096, uti596_txDaemon, sc); |
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| 337 | sc->rxDaemonTid = rtems_bsdnet_newproc ("UTrx", 2*4096, uti596_rxDaemon, sc); |
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| 338 | sc->resetDaemonTid = rtems_bsdnet_newproc ("UTrt", 2*4096, uti596_resetDaemon, sc); |
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| 339 | |
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| 340 | #ifdef DBG_INIT |
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| 341 | printk(("uti596_init: After attach, status of board = 0x%x\n", sc->scb.status )) |
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| 342 | #endif |
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| 343 | } |
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| 344 | |
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| 345 | /* |
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| 346 | * Enable receiver |
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| 347 | */ |
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| 348 | #ifdef DBG_INIT |
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| 349 | printk(("uti596_init: enabling the reciever...\n" )) |
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| 350 | #endif |
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| 351 | sc->scb.command = RX_START; |
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| 352 | i82596->chan_attn = 0x00000000; |
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| 353 | UTI_WAIT_COMMAND_ACCEPTED(4000,"uti596_init: RX_START"); |
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| 354 | |
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| 355 | /* |
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| 356 | * Tell the world that we're running. |
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| 357 | */ |
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| 358 | ifp->if_flags |= IFF_RUNNING; |
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| 359 | #ifdef DBG_INIT |
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| 360 | printk(("uti596_init: completed.\n")) |
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| 361 | #endif |
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| 362 | } |
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| 363 | |
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| 364 | /*********************************************************************** |
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| 365 | * Function: uti596stop |
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| 366 | * |
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| 367 | * Description: |
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| 368 | * stop the driver |
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| 369 | * |
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| 370 | * Algorithm: |
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| 371 | * mark driver as not started, |
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| 372 | * mark transmitter as busy |
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| 373 | * abort any transmissions/receptions |
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| 374 | * clean-up all buffers ( RFD's et. al. ) |
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| 375 | * |
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| 376 | * |
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| 377 | * |
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| 378 | * |
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| 379 | ***********************************************************************/ |
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| 380 | |
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| 381 | /* static */ void uti596_stop( |
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| 382 | uti596_softc_ *sc |
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| 383 | ) |
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| 384 | { |
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| 385 | struct ifnet *ifp = &sc->arpcom.ac_if; |
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| 386 | |
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| 387 | ifp->if_flags &= ~IFF_RUNNING; |
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| 388 | sc->started = 0; |
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| 389 | |
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| 390 | #ifdef DBG_596 |
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| 391 | printk(("uti596stop: %s: Shutting down ethercard, status was %4.4x.\n", |
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| 392 | uti596_softc.arpcom.ac_if.if_name, uti596_softc.scb.status)) |
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| 393 | #endif |
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| 394 | |
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| 395 | printk(("Stopping interface\n")) |
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| 396 | sc->scb.command = CUC_ABORT | RX_ABORT; |
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| 397 | i82596->chan_attn = 0x00000000; |
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| 398 | } |
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| 399 | |
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| 400 | |
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| 401 | |
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| 402 | /*********************************************************************** |
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| 403 | * Function: void uti596_txDaemon |
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| 404 | * |
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| 405 | * Description: Transmit task |
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| 406 | * |
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| 407 | * Algorithm: Get mbufs to be transmitted, stuff into RFDs, send |
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| 408 | * |
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| 409 | ***********************************************************************/ |
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| 410 | |
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| 411 | void uti596_txDaemon( |
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| 412 | void *arg |
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| 413 | ) |
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| 414 | { |
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| 415 | uti596_softc_ *sc = (uti596_softc_ *)arg; |
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| 416 | struct ifnet *ifp = &sc->arpcom.ac_if; |
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| 417 | struct mbuf *m; |
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| 418 | rtems_event_set events; |
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| 419 | |
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| 420 | for (;;) { |
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| 421 | /* |
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| 422 | * Wait for packet from stack |
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| 423 | */ |
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| 424 | rtems_bsdnet_event_receive (START_TRANSMIT_EVENT, |
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| 425 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
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| 426 | RTEMS_NO_TIMEOUT, &events); |
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| 427 | |
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| 428 | /* |
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| 429 | * Send packets till queue is empty. |
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| 430 | * Ensure that irq is on before sending. |
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| 431 | */ |
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| 432 | for (;;) { |
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| 433 | /* Get the next mbuf chain to transmit. */ |
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| 434 | IF_DEQUEUE(&ifp->if_snd, m); |
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| 435 | if (!m) |
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| 436 | break; |
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| 437 | |
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| 438 | send_packet (ifp, m); /* blocks */ |
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| 439 | } |
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| 440 | ifp->if_flags &= ~IFF_OACTIVE; /* no more to send, mark output inactive */ |
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| 441 | } |
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| 442 | } |
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| 443 | |
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| 444 | /*********************************************************************** |
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| 445 | * Function: uti596_rxDaemon |
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| 446 | * |
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| 447 | * Description: Receiver task |
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| 448 | * |
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| 449 | * Algorithm: Extract the packet from an RFD, and place into an |
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| 450 | * mbuf chain. Place the mbuf chain in the network task |
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| 451 | * queue. Assumes that the frame check sequence is removed |
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| 452 | * by the 82596. |
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| 453 | * |
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| 454 | ***********************************************************************/ |
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| 455 | |
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| 456 | /* static */ void uti596_rxDaemon( |
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| 457 | void *arg |
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| 458 | ) |
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| 459 | { |
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| 460 | uti596_softc_ *sc = (uti596_softc_ *)arg; |
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| 461 | struct ifnet *ifp = &sc->arpcom.ac_if; |
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| 462 | struct mbuf *m; |
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| 463 | |
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| 464 | i596_rfd *pRfd; |
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| 465 | ISR_Level level; |
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| 466 | int tid; |
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| 467 | rtems_event_set events; |
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| 468 | struct ether_header *eh; |
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| 469 | |
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| 470 | int frames = 0; |
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| 471 | #ifdef DBG_INIT_3 |
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| 472 | int i; |
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| 473 | #endif |
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| 474 | |
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| 475 | #ifdef DBG_596 |
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| 476 | printk(("uti596_rxDaemon: begin\n")) |
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| 477 | printk(("&scb = %p, pRfd = %p\n", &sc->scb,sc->scb.pRfd)) |
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| 478 | #endif |
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| 479 | |
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| 480 | rtems_task_ident (0, 0, &tid); |
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| 481 | |
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| 482 | #ifdef DBG_596 |
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| 483 | printk(("uti596_rxDaemon: RX tid = 0x%x\n", tid)) |
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| 484 | #endif |
---|
| 485 | |
---|
| 486 | for(;;) { |
---|
| 487 | /* |
---|
| 488 | * Wait for packet. |
---|
| 489 | */ |
---|
| 490 | #ifdef DBG_596 |
---|
| 491 | printk(("uti596_rxDaemon: Receiver sleeps\n")) |
---|
| 492 | #endif |
---|
| 493 | |
---|
| 494 | rtems_bsdnet_event_receive (INTERRUPT_EVENT, |
---|
| 495 | RTEMS_WAIT|RTEMS_EVENT_ANY, |
---|
| 496 | RTEMS_NO_TIMEOUT, |
---|
| 497 | &events); |
---|
| 498 | |
---|
| 499 | #ifdef DBG_596 |
---|
| 500 | printk(("uti596_rxDaemon: Receiver wakes\n")) |
---|
| 501 | #endif |
---|
| 502 | /* |
---|
| 503 | * While received frames are available. Note that the frame may be |
---|
| 504 | * a fragment, so it is NOT a complete packet. |
---|
| 505 | */ |
---|
| 506 | pRfd = uti596dequeue( &sc->pInboundFrameQueue); |
---|
| 507 | while ( pRfd && |
---|
| 508 | pRfd != I596_NULL && |
---|
| 509 | pRfd -> stat & STAT_C ) |
---|
| 510 | { |
---|
| 511 | |
---|
| 512 | #ifdef DBG_INIT_3 |
---|
| 513 | printk(("\nuti596_rxDaemon: Received packet:\n")) |
---|
| 514 | print_eth( pRfd->data); |
---|
| 515 | #endif |
---|
| 516 | if ( pRfd->stat & STAT_OK) { /* a good frame */ |
---|
| 517 | int pkt_len = pRfd->count & 0x3fff; /* the actual # of bytes received */ |
---|
| 518 | |
---|
| 519 | #ifdef DBG_596 |
---|
| 520 | printk(("uti596_rxDaemon: Good frame, @%p, data @%p length %d\n", pRfd, pRfd -> data , pkt_len)) |
---|
| 521 | #endif |
---|
| 522 | frames++; |
---|
| 523 | |
---|
| 524 | /* |
---|
| 525 | * Allocate an mbuf to give to the stack |
---|
| 526 | * The format of the data portion of the RFD is: |
---|
| 527 | * <ethernet header, payload>. |
---|
| 528 | * The FRAME CHECK SEQUENCE / CRC is stripped by the uti596. |
---|
| 529 | * This is to be optimized later.... should not have to memcopy! |
---|
| 530 | */ |
---|
| 531 | MGETHDR(m, M_WAIT, MT_DATA); |
---|
| 532 | MCLGET(m, M_WAIT); |
---|
| 533 | |
---|
| 534 | m->m_pkthdr.rcvif = ifp; |
---|
| 535 | /* move everything into an mbuf */ |
---|
| 536 | memcpy(m->m_data, |
---|
| 537 | pRfd->data, |
---|
| 538 | pkt_len); |
---|
| 539 | |
---|
| 540 | m->m_len = m->m_pkthdr.len = pkt_len - sizeof(struct ether_header) - 4; |
---|
| 541 | |
---|
| 542 | /* move the header to an mbuf */ |
---|
| 543 | eh = mtod (m, struct ether_header *); |
---|
| 544 | m->m_data += sizeof(struct ether_header); |
---|
| 545 | |
---|
| 546 | #ifdef DBG_596 |
---|
| 547 | printk(("uti596_rxDaemon: m->m_ext: %p pRfd -> data: %p\n", |
---|
| 548 | m->m_ext, pRfd->data)) |
---|
| 549 | #endif |
---|
| 550 | #ifdef DBG_INIT_3 |
---|
| 551 | printk(("uti596_rxDaemon: mbuf contains:\n")) |
---|
| 552 | print_eth( (char *) (((int)m->m_data)-sizeof(struct ether_header))); |
---|
| 553 | for ( i = 0; i<20; i++) { |
---|
| 554 | printk((".")) |
---|
| 555 | } |
---|
| 556 | #endif |
---|
| 557 | ether_input (ifp, eh, m); |
---|
| 558 | |
---|
| 559 | } /* end if STAT_OK */ |
---|
| 560 | |
---|
| 561 | else { |
---|
| 562 | /* |
---|
| 563 | * A bad frame is present: Note that this could be the last RFD! |
---|
| 564 | */ |
---|
| 565 | #ifdef DBG_596 |
---|
| 566 | printk(("uti596_rxDaemon: Bad frame\n")) |
---|
| 567 | #endif |
---|
| 568 | /* |
---|
| 569 | * FIX ME: use the statistics from the SCB |
---|
| 570 | */ |
---|
| 571 | sc->stats.rx_errors++; |
---|
| 572 | if ((sc->scb.pRfd->stat) & 0x0001) |
---|
| 573 | sc->stats.collisions++; |
---|
| 574 | if ((sc->scb.pRfd->stat) & 0x0080) |
---|
| 575 | sc->stats.rx_length_errors++; |
---|
| 576 | if ((sc->scb.pRfd->stat) & 0x0100) |
---|
| 577 | sc->stats.rx_over_errors++; |
---|
| 578 | if ((sc->scb.pRfd->stat) & 0x0200) |
---|
| 579 | sc->stats.rx_fifo_errors++; |
---|
| 580 | if ((sc->scb.pRfd->stat) & 0x0400) |
---|
| 581 | sc->stats.rx_frame_errors++; |
---|
| 582 | if ((sc->scb.pRfd->stat) & 0x0800) |
---|
| 583 | sc->stats.rx_crc_errors++; |
---|
| 584 | if ((sc->scb.pRfd->stat) & 0x1000) |
---|
| 585 | sc->stats.rx_length_errors++; |
---|
| 586 | } |
---|
| 587 | |
---|
| 588 | UTI_596_ASSERT(pRfd != I596_NULL, "Supplying NULL RFD\n") |
---|
| 589 | |
---|
| 590 | #ifdef DBG_SUPPLY_FD |
---|
| 591 | printk(("uti596_rxDaemon: Supply FD Starting\n")) |
---|
| 592 | #endif |
---|
| 593 | _ISR_Disable(level); |
---|
| 594 | uti596supplyFD ( pRfd ); /* Return RFD to RFA. */ |
---|
| 595 | _ISR_Enable(level); |
---|
| 596 | #ifdef DBG_SUPPLY_FD |
---|
| 597 | printk(("uti596_rxDaemon: Supply FD Complete\n")) |
---|
| 598 | #endif |
---|
| 599 | pRfd = uti596dequeue( &sc->pInboundFrameQueue); /* grab next frame */ |
---|
| 600 | |
---|
| 601 | } /* end while */ |
---|
| 602 | } /* end for(;;) */ |
---|
| 603 | |
---|
| 604 | #ifdef DBG_596 |
---|
| 605 | printk (("uti596_rxDaemon: frames ... %d\n", frames)) |
---|
| 606 | #endif |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | /*********************************************************************** |
---|
| 610 | * Function: void uti596_resetDaemon |
---|
| 611 | * |
---|
| 612 | * Description: |
---|
| 613 | ***********************************************************************/ |
---|
| 614 | void uti596_resetDaemon( |
---|
| 615 | void *arg |
---|
| 616 | ) |
---|
| 617 | { |
---|
| 618 | uti596_softc_ *sc = (uti596_softc_ *)arg; |
---|
| 619 | rtems_event_set events; |
---|
| 620 | rtems_time_of_day tm_struct; |
---|
| 621 | |
---|
| 622 | /* struct ifnet *ifp = &sc->arpcom.ac_if; */ |
---|
| 623 | |
---|
| 624 | for (;;) { |
---|
| 625 | /* Wait for reset event from ISR */ |
---|
| 626 | rtems_bsdnet_event_receive (NIC_RESET_EVENT, |
---|
| 627 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
| 628 | RTEMS_NO_TIMEOUT, &events); |
---|
| 629 | |
---|
| 630 | rtems_clock_get(RTEMS_CLOCK_GET_TOD, &tm_struct); |
---|
| 631 | printk(("reset daemon: Resetting NIC @ %d:%d:%d \n", |
---|
| 632 | tm_struct.hour, tm_struct.minute, tm_struct.second)) |
---|
| 633 | |
---|
| 634 | sc->stats.nic_reset_count++; |
---|
| 635 | /* Reinitialize the LANC */ |
---|
| 636 | rtems_bsdnet_semaphore_obtain (); |
---|
| 637 | uti596reset(); |
---|
| 638 | rtems_bsdnet_semaphore_release (); |
---|
| 639 | } |
---|
| 640 | } |
---|
| 641 | |
---|
| 642 | |
---|
| 643 | /*********************************************************************** |
---|
| 644 | * Function: uti596_DynamicInterruptHandler |
---|
| 645 | * |
---|
| 646 | * Description: |
---|
| 647 | * This is the interrupt handler for the uti596 board |
---|
| 648 | * |
---|
| 649 | * Algorithm: |
---|
| 650 | * |
---|
| 651 | ***********************************************************************/ |
---|
| 652 | |
---|
| 653 | /* static */ rtems_isr uti596_DynamicInterruptHandler( |
---|
| 654 | rtems_vector_number irq |
---|
| 655 | ) |
---|
| 656 | { |
---|
| 657 | #ifdef DEBUG_ISR |
---|
| 658 | printk(("uti596_DynamicInterruptHandler: begins")) |
---|
| 659 | #endif |
---|
| 660 | |
---|
| 661 | UTI_WAIT_COMMAND_ACCEPTED(20000,"****ERROR:on ISR entry"); |
---|
| 662 | |
---|
| 663 | scbStatus = uti596_softc.scb.status & 0xf000; |
---|
| 664 | |
---|
| 665 | if ( scbStatus ) { |
---|
| 666 | /* acknowledge interrupts */ |
---|
| 667 | |
---|
| 668 | /* Write to the ICLR bit in the PCCchip2 control registers to clear |
---|
| 669 | * the INT status bit. Clearing INT here *before* sending the CA signal |
---|
| 670 | * to the 82596 should ensure that interrupts won't be lost. |
---|
| 671 | */ |
---|
| 672 | pccchip2->LANC_int_ctl |=0x08; |
---|
| 673 | pccchip2->LANC_berr_ctl |=0x08; |
---|
| 674 | |
---|
| 675 | /* printk(("***INFO: ACK %x\n", scbStatus))*/ |
---|
| 676 | |
---|
| 677 | /* Send the CA signal to acknowledge interrupt */ |
---|
| 678 | uti596_softc.scb.command = scbStatus; |
---|
| 679 | i82596->chan_attn = 0x00000000; |
---|
| 680 | |
---|
| 681 | if( uti596_softc.resetDone ) { |
---|
| 682 | /* stack is attached */ |
---|
| 683 | UTI_WAIT_COMMAND_ACCEPTED(20000,"****ERROR:ACK"); |
---|
| 684 | } |
---|
| 685 | else { |
---|
| 686 | /* printk(("***INFO: ACK'd w/o processing. status = %x\n", scbStatus)) */ |
---|
| 687 | return; |
---|
| 688 | } |
---|
| 689 | } |
---|
| 690 | else { |
---|
| 691 | printk(("\n***ERROR: Spurious interrupt. Resetting...\n")) |
---|
| 692 | uti596_softc.nic_reset = 1; |
---|
| 693 | } |
---|
| 694 | |
---|
| 695 | |
---|
| 696 | if ( (scbStatus & SCB_STAT_CX) && !(scbStatus & SCB_STAT_CNA) ){ |
---|
| 697 | printk_time(); |
---|
| 698 | printk(("\n*****ERROR: Command Complete, and CNA available: 0x%x\nResetting...", scbStatus)) |
---|
| 699 | uti596_softc.nic_reset = 1; |
---|
| 700 | return; |
---|
| 701 | } |
---|
| 702 | |
---|
| 703 | if ( !(scbStatus & SCB_STAT_CX) && (scbStatus & SCB_STAT_CNA) ) { |
---|
| 704 | printk_time(); |
---|
| 705 | printk(("\n*****ERROR: CNA, NO CX:0x%x\nResetting...",scbStatus)) |
---|
| 706 | uti596_softc.nic_reset = 1; |
---|
| 707 | return; |
---|
| 708 | } |
---|
| 709 | |
---|
| 710 | if ( scbStatus & SCB_CUS_SUSPENDED ) { |
---|
| 711 | printk_time(); |
---|
| 712 | printk(("\n*****ERROR: Command unit suspended!:0x%x\nResetting...",scbStatus)) |
---|
| 713 | uti596_softc.nic_reset = 1; |
---|
| 714 | return; |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | if ( scbStatus & RU_SUSPENDED ) { |
---|
| 718 | printk_time(); |
---|
| 719 | printk(("\n*****ERROR: Receive unit suspended!:0x%x\nResetting...",scbStatus)) |
---|
| 720 | uti596_softc.nic_reset = 1; |
---|
| 721 | return; |
---|
| 722 | } |
---|
| 723 | |
---|
| 724 | if ( scbStatus & SCB_STAT_RNR ) { |
---|
| 725 | printk_time(); |
---|
| 726 | printk(("\n*****WARNING: RNR %x\n",scbStatus)) |
---|
| 727 | if (uti596_softc.pBeginRFA != I596_NULL) { |
---|
| 728 | printk(("*****INFO: RFD cmd: %x status:%x\n", uti596_softc.pBeginRFA->cmd, |
---|
| 729 | uti596_softc.pBeginRFA->stat)) |
---|
| 730 | } |
---|
| 731 | else { |
---|
| 732 | printk(("*****WARNING: RNR condition with NULL BeginRFA\n")) |
---|
| 733 | } |
---|
| 734 | } |
---|
| 735 | |
---|
| 736 | /* |
---|
| 737 | * Receive Unit Control |
---|
| 738 | * a frame is received |
---|
| 739 | */ |
---|
| 740 | if ( scbStatus & SCB_STAT_FR ) { |
---|
| 741 | uti596_softc.rxInterrupts++; |
---|
| 742 | |
---|
| 743 | #ifdef DBG_FR |
---|
| 744 | printk(("uti596_DynamicInterruptHandler: Frame received\n")) |
---|
| 745 | #endif |
---|
| 746 | if ( uti596_softc.pBeginRFA == I596_NULL || |
---|
| 747 | !( uti596_softc.pBeginRFA -> stat & STAT_C)) { |
---|
| 748 | dump_scb(); |
---|
| 749 | uti596_softc.nic_reset = 1; |
---|
| 750 | } |
---|
| 751 | else { |
---|
| 752 | while ( uti596_softc.pBeginRFA != I596_NULL && |
---|
| 753 | ( uti596_softc.pBeginRFA -> stat & STAT_C)) { |
---|
| 754 | |
---|
| 755 | #ifdef DBG_ISR |
---|
| 756 | printk(("uti596_DynamicInterruptHandler: pBeginRFA != NULL\n")) |
---|
| 757 | #endif |
---|
| 758 | count_rx ++; |
---|
| 759 | if ( count_rx > 1) { |
---|
| 760 | printk(("****WARNING: Received 2 frames on 1 interrupt \n")) |
---|
| 761 | } |
---|
| 762 | /* Give Received Frame to the ULCS */ |
---|
| 763 | uti596_softc.countRFD--; |
---|
| 764 | |
---|
| 765 | if ( uti596_softc.countRFD < 0 ) { |
---|
| 766 | printk(("ISR: Count < 0 !!! count == %d, beginRFA = %p\n", |
---|
| 767 | uti596_softc.countRFD, uti596_softc.pBeginRFA)) |
---|
| 768 | } |
---|
| 769 | uti596_softc.stats.rx_packets++; |
---|
| 770 | /* the rfd next link is stored with upper and lower words swapped so read it that way */ |
---|
| 771 | pIsrRfd = (i596_rfd *) word_swap ((unsigned long)uti596_softc.pBeginRFA->next); |
---|
| 772 | /* the append destroys the link */ |
---|
| 773 | uti596append( &uti596_softc.pInboundFrameQueue , uti596_softc.pBeginRFA ); |
---|
| 774 | |
---|
| 775 | /* |
---|
| 776 | * if we have just received the a frame in the last unknown RFD, |
---|
| 777 | * then it is certain that the RFA is empty. |
---|
| 778 | */ |
---|
| 779 | if ( uti596_softc.pLastUnkRFD == uti596_softc.pBeginRFA ) { |
---|
| 780 | UTI_596_ASSERT(uti596_softc.pLastUnkRFD != I596_NULL,"****ERROR:LastUnk is NULL, begin ptr @ end!\n") |
---|
| 781 | uti596_softc.pEndRFA = uti596_softc.pLastUnkRFD = I596_NULL; |
---|
| 782 | } |
---|
| 783 | |
---|
| 784 | #ifdef DBG_ISR |
---|
| 785 | printk(("uti596_DynamicInterruptHandler: Wake %#x\n",uti596_softc.rxDaemonTid)) |
---|
| 786 | #endif |
---|
| 787 | sc = rtems_event_send(uti596_softc.rxDaemonTid, INTERRUPT_EVENT); |
---|
| 788 | if ( sc != RTEMS_SUCCESSFUL ) { |
---|
| 789 | rtems_panic("Can't notify rxDaemon: %s\n", |
---|
| 790 | rtems_status_text (sc)); |
---|
| 791 | } |
---|
| 792 | #ifdef DBG_RAW_ISR |
---|
| 793 | else { |
---|
| 794 | printk(("uti596_DynamicInterruptHandler: Rx Wake: %#x\n",uti596_softc.rxDaemonTid)) |
---|
| 795 | } |
---|
| 796 | #endif |
---|
| 797 | |
---|
| 798 | uti596_softc.pBeginRFA = pIsrRfd; |
---|
| 799 | } /* end while */ |
---|
| 800 | } /* end if */ |
---|
| 801 | |
---|
| 802 | if ( uti596_softc.pBeginRFA == I596_NULL ) { |
---|
| 803 | /* adjust the pEndRFA to reflect an empty list */ |
---|
| 804 | if ( uti596_softc.pLastUnkRFD == I596_NULL && uti596_softc.countRFD != 0 ) { |
---|
| 805 | printk(("Last Unk is NULL, BeginRFA is null, and count == %d\n", |
---|
| 806 | uti596_softc.countRFD)) |
---|
| 807 | } |
---|
| 808 | uti596_softc.pEndRFA = I596_NULL; |
---|
| 809 | if ( uti596_softc.countRFD != 0 ) { |
---|
| 810 | printk(("****ERROR:Count is %d, but begin ptr is NULL\n", |
---|
| 811 | uti596_softc.countRFD )) |
---|
| 812 | } |
---|
| 813 | } |
---|
| 814 | } /* end if ( scbStatus & SCB_STAT_FR ) */ |
---|
| 815 | |
---|
| 816 | |
---|
| 817 | /* |
---|
| 818 | * Command Unit Control |
---|
| 819 | * a command is completed |
---|
| 820 | */ |
---|
| 821 | if ( scbStatus & SCB_STAT_CX ) { |
---|
| 822 | #ifdef DBG_ISR |
---|
| 823 | printk(("uti596_DynamicInterruptHandler: CU\n")) |
---|
| 824 | #endif |
---|
| 825 | |
---|
| 826 | pIsrCmd = uti596_softc.pCmdHead; |
---|
| 827 | |
---|
| 828 | /* For ALL completed commands */ |
---|
| 829 | if ( pIsrCmd != I596_NULL && pIsrCmd->status & STAT_C ) { |
---|
| 830 | |
---|
| 831 | #ifdef DBG_RAW_ISR |
---|
| 832 | printk(("uti596_DynamicInterruptHandler: pIsrCmd != NULL\n")) |
---|
| 833 | #endif |
---|
| 834 | |
---|
| 835 | /* Adjust the command block list */ |
---|
| 836 | uti596_softc.pCmdHead = (i596_cmd *) word_swap ((unsigned long)pIsrCmd->next); |
---|
| 837 | |
---|
| 838 | /* |
---|
| 839 | * If there are MORE commands to process, |
---|
| 840 | * the serialization in the raw routine has failed. |
---|
| 841 | * ( Perhaps AddCmd is bad? ) |
---|
| 842 | */ |
---|
| 843 | UTI_596_ASSERT(uti596_softc.pCmdHead == I596_NULL, "****ERROR: command serialization failed\n") |
---|
| 844 | |
---|
| 845 | /* What if the command did not complete OK? */ |
---|
| 846 | switch ( pIsrCmd->command & 0x7) { |
---|
| 847 | case CmdConfigure: |
---|
| 848 | |
---|
| 849 | /* printk(("****INFO:Configure OK\n")) */ |
---|
| 850 | uti596_softc.cmdOk = 1; |
---|
| 851 | break; |
---|
| 852 | |
---|
| 853 | case CmdDump: |
---|
| 854 | #ifdef DBG_ISR |
---|
| 855 | printk(("uti596_DynamicInterruptHandler: dump!\n")) |
---|
| 856 | #endif |
---|
| 857 | uti596_softc.cmdOk = 1; |
---|
| 858 | break; |
---|
| 859 | |
---|
| 860 | case CmdDiagnose: |
---|
| 861 | #ifdef DBG_ISR |
---|
| 862 | printk(("uti596_DynamicInterruptHandler: diagnose!\n")) |
---|
| 863 | #endif |
---|
| 864 | uti596_softc.cmdOk = 1; |
---|
| 865 | break; |
---|
| 866 | |
---|
| 867 | case CmdSASetup: |
---|
| 868 | /* printk(("****INFO:Set address interrupt\n")) */ |
---|
| 869 | if ( pIsrCmd -> status & STAT_OK ) { |
---|
| 870 | uti596_softc.cmdOk = 1; |
---|
| 871 | } |
---|
| 872 | else { |
---|
| 873 | printk(("****ERROR:SET ADD FAILED\n")) |
---|
| 874 | } |
---|
| 875 | break; |
---|
| 876 | |
---|
| 877 | case CmdTx: |
---|
| 878 | UTI_596_ASSERT(uti596_softc.txDaemonTid, "****ERROR:Null txDaemonTid\n") |
---|
| 879 | #ifdef DBG_ISR |
---|
| 880 | printk(("uti596_DynamicInterruptHandler: wake TX:0x%x\n",uti596_softc.txDaemonTid)) |
---|
| 881 | #endif |
---|
| 882 | if ( uti596_softc.txDaemonTid ) { |
---|
| 883 | /* Ensure that the transmitter is present */ |
---|
| 884 | sc = rtems_event_send (uti596_softc.txDaemonTid, |
---|
| 885 | INTERRUPT_EVENT); |
---|
| 886 | |
---|
| 887 | if ( sc != RTEMS_SUCCESSFUL ) { |
---|
| 888 | printk(("****ERROR:Could NOT send event to tid 0x%x : %s\n", |
---|
| 889 | uti596_softc.txDaemonTid, rtems_status_text (sc) )) |
---|
| 890 | } |
---|
| 891 | #ifdef DBG_RAW_ISR |
---|
| 892 | else { |
---|
| 893 | printk(("****INFO:Tx wake: %#x\n",uti596_softc.txDaemonTid)) |
---|
| 894 | } |
---|
| 895 | #endif |
---|
| 896 | } |
---|
| 897 | break; |
---|
| 898 | |
---|
| 899 | case CmdMulticastList: |
---|
| 900 | printk(("***ERROR:Multicast?!\n")) |
---|
| 901 | pIsrCmd->next = I596_NULL; |
---|
| 902 | break; |
---|
| 903 | |
---|
| 904 | case CmdTDR: { |
---|
| 905 | unsigned long status = *( (unsigned long *)pIsrCmd)+1; |
---|
| 906 | printk(("****ERROR:TDR?!\n")) |
---|
| 907 | |
---|
| 908 | if (status & STAT_C) { |
---|
| 909 | /* mark the TDR command successful */ |
---|
| 910 | uti596_softc.cmdOk = 1; |
---|
| 911 | } |
---|
| 912 | else { |
---|
| 913 | if (status & 0x4000) { |
---|
| 914 | printk(("****WARNING:Transceiver problem.\n")) |
---|
| 915 | } |
---|
| 916 | if (status & 0x2000) { |
---|
| 917 | printk(("****WARNING:Termination problem.\n")) |
---|
| 918 | } |
---|
| 919 | if (status & 0x1000) { |
---|
| 920 | printk(("****WARNING:Short circuit.\n")) |
---|
| 921 | /* printk(("****INFO:Time %ld.\n", status & 0x07ff)) */ |
---|
| 922 | } |
---|
| 923 | } |
---|
| 924 | } |
---|
| 925 | break; |
---|
| 926 | |
---|
| 927 | default: { |
---|
| 928 | /* |
---|
| 929 | * This should never be reached |
---|
| 930 | */ |
---|
| 931 | printk(("CX but NO known command\n")) |
---|
| 932 | } |
---|
| 933 | } /* end switch */ |
---|
| 934 | |
---|
| 935 | pIsrCmd = uti596_softc.pCmdHead; /* next command */ |
---|
| 936 | if ( pIsrCmd != I596_NULL ) { |
---|
| 937 | printk(("****WARNING: more commands in list, but no start to NIC\n")) |
---|
| 938 | } |
---|
| 939 | } /* end if pIsrCmd != NULL && pIsrCmd->stat & STAT_C */ |
---|
| 940 | |
---|
| 941 | else { |
---|
| 942 | if ( pIsrCmd != I596_NULL ) { |
---|
| 943 | /* The command MAY be NULL from a RESET */ |
---|
| 944 | /* Reset the ethernet card, and wake the transmitter (if necessary) */ |
---|
| 945 | printk_time(); |
---|
| 946 | printk(("****INFO: Request board reset ( tx )\n")) |
---|
| 947 | uti596_softc.nic_reset = 1; |
---|
| 948 | if ( uti596_softc.txDaemonTid) { |
---|
| 949 | /* Ensure that a transmitter is present */ |
---|
| 950 | sc = rtems_event_send (uti596_softc.txDaemonTid, |
---|
| 951 | INTERRUPT_EVENT); |
---|
| 952 | if ( sc != RTEMS_SUCCESSFUL ) { |
---|
| 953 | printk(("****ERROR:Could NOT send event to tid 0x%x : %s\n",uti596_softc.txDaemonTid, rtems_status_text (sc) )) |
---|
| 954 | } |
---|
| 955 | #ifdef DBG_RAW_ISR |
---|
| 956 | else { |
---|
| 957 | printk(("uti596_DynamicInterruptHandler: ****INFO:Tx wake: %#x\n",uti596_softc.txDaemonTid)) |
---|
| 958 | } |
---|
| 959 | #endif |
---|
| 960 | } |
---|
| 961 | } |
---|
| 962 | } |
---|
| 963 | } /* end if command complete */ |
---|
| 964 | |
---|
| 965 | |
---|
| 966 | /* |
---|
| 967 | * If the receiver has stopped, |
---|
| 968 | * check if this is a No Resources scenario, |
---|
| 969 | * Try to add more RFD's ( no RBDs are used ) |
---|
| 970 | */ |
---|
| 971 | if ( uti596_softc.started ) { |
---|
| 972 | if ( scbStatus & SCB_STAT_RNR ) { |
---|
| 973 | #ifdef DBG_ISR |
---|
| 974 | printk(("uti596_DynamicInterruptHandler: INFO:RNR: status %#x \n", uti596_softc.scb.status )) |
---|
| 975 | #endif |
---|
| 976 | /* |
---|
| 977 | * THE RECEIVER IS OFF! |
---|
| 978 | */ |
---|
| 979 | if ( uti596_softc.pLastUnkRFD != I596_NULL ) { |
---|
| 980 | /* We have an unknown RFD, it is not inbound */ |
---|
| 981 | if ( uti596_softc.pLastUnkRFD -> stat & (STAT_C | STAT_B )) { /* in use */ |
---|
| 982 | uti596_softc.pEndRFA = uti596_softc.pLastUnkRFD; /* update end */ |
---|
| 983 | } |
---|
| 984 | else { |
---|
| 985 | /* |
---|
| 986 | * It is NOT in use, and since RNR, we know EL bit of pEndRFA was read! |
---|
| 987 | * So, unlink it from the RFA and move it to the saved queue. |
---|
| 988 | * But pBegin can equal LastUnk! |
---|
| 989 | */ |
---|
| 990 | |
---|
| 991 | if ( uti596_softc.pEndRFA != I596_NULL ) { |
---|
| 992 | /* check added feb24. */ |
---|
| 993 | #ifdef DEBUG_RFA |
---|
| 994 | if ((i596_rfd *)word_swap((unsigned long)uti596_softc.pEndRFA->next) != uti596_softc.pLastUnkRFD) { |
---|
| 995 | printk(("***ERROR:UNK: %p not end->next: %p, end: %p\n", |
---|
| 996 | uti596_softc.pLastUnkRFD, |
---|
| 997 | uti596_softc.pEndRFA -> next, |
---|
| 998 | uti596_softc.pEndRFA)) |
---|
| 999 | printk(("***INFO:countRFD now %d\n", |
---|
| 1000 | uti596_softc.countRFD)) |
---|
| 1001 | printk(("\n\n")) |
---|
| 1002 | } |
---|
| 1003 | #endif |
---|
| 1004 | uti596_softc.pEndRFA -> next = I596_NULL; /* added feb 16 */ |
---|
| 1005 | } |
---|
| 1006 | uti596append( &uti596_softc.pSavedRfdQueue, uti596_softc.pLastUnkRFD ); |
---|
| 1007 | uti596_softc.savedCount++; |
---|
| 1008 | uti596_softc.pEndSavedQueue = uti596_softc.pLastUnkRFD; |
---|
| 1009 | uti596_softc.countRFD--; /* It was not in the RFA */ |
---|
| 1010 | /* |
---|
| 1011 | * The Begin pointer CAN advance this far. We must resynch the CPU side |
---|
| 1012 | * with the chip. |
---|
| 1013 | */ |
---|
| 1014 | if ( uti596_softc.pBeginRFA == uti596_softc.pLastUnkRFD ) { |
---|
| 1015 | #ifdef DEBUG_RFA |
---|
| 1016 | if ( uti596_softc.countRFD != 0 ) { |
---|
| 1017 | printk(("****INFO:About to set begin to NULL, with count == %d\n\n", |
---|
| 1018 | uti596_softc.countRFD )) |
---|
| 1019 | } |
---|
| 1020 | #endif |
---|
| 1021 | uti596_softc.pBeginRFA = I596_NULL; |
---|
| 1022 | UTI_596_ASSERT(uti596_softc.countRFD == 0, "****ERROR:Count must be zero here!\n") |
---|
| 1023 | } |
---|
| 1024 | } |
---|
| 1025 | uti596_softc.pLastUnkRFD = I596_NULL; |
---|
| 1026 | } /* end if exists UnkRFD */ |
---|
| 1027 | |
---|
| 1028 | /* |
---|
| 1029 | * Append the saved queue to the RFA. |
---|
| 1030 | * Any further RFD's being supplied will be added to |
---|
| 1031 | * this new list. |
---|
| 1032 | */ |
---|
| 1033 | if ( uti596_softc.pSavedRfdQueue != I596_NULL ) { |
---|
| 1034 | /* entries to add */ |
---|
| 1035 | if ( uti596_softc.pBeginRFA == I596_NULL ) { |
---|
| 1036 | /* add at beginning to list */ |
---|
| 1037 | #ifdef DEBUG_RFA |
---|
| 1038 | if(uti596_softc.countRFD != 0) { |
---|
| 1039 | printk(("****ERROR:Begin pointer is NULL, but count == %d\n", |
---|
| 1040 | uti596_softc.countRFD)) |
---|
| 1041 | } |
---|
| 1042 | #endif |
---|
| 1043 | uti596_softc.pBeginRFA = uti596_softc.pSavedRfdQueue; |
---|
| 1044 | uti596_softc.pEndRFA = uti596_softc.pEndSavedQueue; |
---|
| 1045 | uti596_softc.pSavedRfdQueue = uti596_softc.pEndSavedQueue = I596_NULL; /* Reset the End */ |
---|
| 1046 | } |
---|
| 1047 | else { |
---|
| 1048 | #ifdef DEBUG_RFA |
---|
| 1049 | if ( uti596_softc.countRFD <= 0) { |
---|
| 1050 | printk(("****ERROR:Begin pointer is not NULL, but count == %d\n", |
---|
| 1051 | uti596_softc.countRFD)) |
---|
| 1052 | } |
---|
| 1053 | #endif |
---|
| 1054 | UTI_596_ASSERT( uti596_softc.pEndRFA != I596_NULL, "****WARNING: END RFA IS NULL\n") |
---|
| 1055 | UTI_596_ASSERT( uti596_softc.pEndRFA->next == I596_NULL, "****ERROR:END RFA -> next must be NULL\n") |
---|
| 1056 | |
---|
| 1057 | uti596_softc.pEndRFA->next = (i596_rfd *)word_swap((unsigned long)uti596_softc.pSavedRfdQueue); |
---|
| 1058 | uti596_softc.pEndRFA->cmd &= ~CMD_EOL; /* clear the end of list */ |
---|
| 1059 | uti596_softc.pEndRFA = uti596_softc.pEndSavedQueue; |
---|
| 1060 | uti596_softc.pSavedRfdQueue = uti596_softc.pEndSavedQueue = I596_NULL; /* Reset the End */ |
---|
| 1061 | #ifdef DEBUG_ISR |
---|
| 1062 | printk(("uti596_DynamicInterruptHandler: count... %d, saved ... %d \n", |
---|
| 1063 | uti596_softc.countRFD, |
---|
| 1064 | uti596_softc.savedCount)) |
---|
| 1065 | #endif |
---|
| 1066 | } |
---|
| 1067 | /* printk(("Isr: countRFD = %d\n",uti596_softc.countRFD)) */ |
---|
| 1068 | uti596_softc.countRFD += uti596_softc.savedCount; |
---|
| 1069 | /* printk(("Isr: after countRFD = %d\n",uti596_softc.countRFD)) */ |
---|
| 1070 | uti596_softc.savedCount = 0; |
---|
| 1071 | } |
---|
| 1072 | |
---|
| 1073 | #ifdef DBG_596_RFD |
---|
| 1074 | printk(("uti596_DynamicInterruptHandler: The list starts here %p\n",uti596_softc.pBeginRFA )) |
---|
| 1075 | #endif |
---|
| 1076 | |
---|
| 1077 | if ( uti596_softc.countRFD > 1) { |
---|
| 1078 | printk_time(); |
---|
| 1079 | printk(("****INFO: pBeginRFA -> stat = 0x%x\n",uti596_softc.pBeginRFA -> stat)) |
---|
| 1080 | printk(("****INFO: pBeginRFA -> cmd = 0x%x\n",uti596_softc.pBeginRFA -> cmd)) |
---|
| 1081 | uti596_softc.pBeginRFA -> stat = 0; |
---|
| 1082 | UTI_596_ASSERT(uti596_softc.scb.command == 0, "****ERROR:scb command must be zero\n") |
---|
| 1083 | uti596_softc.scb.pRfd = uti596_softc.pBeginRFA; |
---|
| 1084 | uti596_softc.scb.Rfd_val = word_swap((unsigned long)uti596_softc.pBeginRFA); |
---|
| 1085 | /* start RX here */ |
---|
| 1086 | printk(("****INFO: ISR Starting receiver\n")) |
---|
| 1087 | uti596_softc.scb.command = RX_START; /* should this also be CU start? */ |
---|
| 1088 | i82596->chan_attn = 0x00000000; |
---|
| 1089 | } |
---|
| 1090 | } /* end stat_rnr */ |
---|
| 1091 | } /* end if receiver started */ |
---|
| 1092 | |
---|
| 1093 | #ifdef DBG_ISR |
---|
| 1094 | printk(("uti596_DynamicInterruptHandler: X\n")) |
---|
| 1095 | #endif |
---|
| 1096 | count_rx=0; |
---|
| 1097 | |
---|
| 1098 | |
---|
| 1099 | /* Do this last, to ensure that the reset is called at the right time. */ |
---|
| 1100 | if ( uti596_softc.nic_reset ) { |
---|
| 1101 | uti596_softc.nic_reset = 0; |
---|
| 1102 | sc = rtems_event_send(uti596_softc.resetDaemonTid, NIC_RESET_EVENT); |
---|
| 1103 | if ( sc != RTEMS_SUCCESSFUL ) |
---|
| 1104 | rtems_panic ("Can't notify resetDaemon: %s\n", rtems_status_text (sc)); |
---|
| 1105 | } |
---|
| 1106 | return; |
---|
| 1107 | } |
---|
| 1108 | |
---|
| 1109 | /*********************************************************************** |
---|
| 1110 | * Function: uti596_ioctl |
---|
| 1111 | * |
---|
| 1112 | * Description: |
---|
| 1113 | * driver ioctl function |
---|
| 1114 | * handles SIOCGIFADDR, SIOCSIFADDR, SIOCSIFFLAGS |
---|
| 1115 | * |
---|
| 1116 | * Algorithm: |
---|
| 1117 | * |
---|
| 1118 | ***********************************************************************/ |
---|
| 1119 | |
---|
| 1120 | static int uti596_ioctl( |
---|
| 1121 | struct ifnet *ifp, |
---|
| 1122 | int command, caddr_t data |
---|
| 1123 | ) |
---|
| 1124 | { |
---|
| 1125 | uti596_softc_ *sc = ifp->if_softc; |
---|
| 1126 | int error = 0; |
---|
| 1127 | |
---|
| 1128 | #ifdef DBG_INIT |
---|
| 1129 | printk(("uti596_ioctl: begins\n", sc->pScp)) |
---|
| 1130 | #endif |
---|
| 1131 | |
---|
| 1132 | switch (command) { |
---|
| 1133 | case SIOCGIFADDR: |
---|
| 1134 | case SIOCSIFADDR: |
---|
| 1135 | printk(("SIOCSIFADDR\n")) |
---|
| 1136 | ether_ioctl (ifp, command, data); |
---|
| 1137 | break; |
---|
| 1138 | |
---|
| 1139 | case SIOCSIFFLAGS: |
---|
| 1140 | printk(("SIOCSIFFLAGS\n")) |
---|
| 1141 | switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { |
---|
| 1142 | case IFF_RUNNING: |
---|
| 1143 | printk(("IFF_RUNNING\n")) |
---|
| 1144 | uti596_stop (sc); |
---|
| 1145 | break; |
---|
| 1146 | |
---|
| 1147 | case IFF_UP: |
---|
| 1148 | printk(("IFF_UP\n")) |
---|
| 1149 | uti596_init (sc); |
---|
| 1150 | break; |
---|
| 1151 | |
---|
| 1152 | case IFF_UP | IFF_RUNNING: |
---|
| 1153 | printk(("IFF_UP and RUNNING\n")) |
---|
| 1154 | uti596_stop (sc); |
---|
| 1155 | uti596_init (sc); |
---|
| 1156 | break; |
---|
| 1157 | |
---|
| 1158 | default: |
---|
| 1159 | printk(("default\n")) |
---|
| 1160 | break; |
---|
| 1161 | } |
---|
| 1162 | break; |
---|
| 1163 | |
---|
| 1164 | case SIO_RTEMS_SHOW_STATS: |
---|
| 1165 | printk(("show stats\n")) |
---|
| 1166 | uti596_stats (sc); |
---|
| 1167 | break; |
---|
| 1168 | |
---|
| 1169 | /* FIXME: All sorts of multicast commands need to be added here! */ |
---|
| 1170 | default: |
---|
| 1171 | printk(("default: EINVAL\n")) |
---|
| 1172 | error = EINVAL; |
---|
| 1173 | break; |
---|
| 1174 | } |
---|
| 1175 | |
---|
| 1176 | return error; |
---|
| 1177 | } |
---|
| 1178 | |
---|
| 1179 | /*********************************************************************** |
---|
| 1180 | * Function: uti596_stats |
---|
| 1181 | * |
---|
| 1182 | * Description: |
---|
| 1183 | * print out the collected data |
---|
| 1184 | * |
---|
| 1185 | * Algorithm: |
---|
| 1186 | * use printf |
---|
| 1187 | * |
---|
| 1188 | ***********************************************************************/ |
---|
| 1189 | |
---|
| 1190 | void uti596_stats( |
---|
| 1191 | uti596_softc_ *sc |
---|
| 1192 | ) |
---|
| 1193 | { |
---|
| 1194 | printf("CPU Reports:\n"); |
---|
| 1195 | printf (" Tx raw send count:%-8lu", sc->rawsndcnt); |
---|
| 1196 | printf (" Rx Interrupts:%-8lu", sc->rxInterrupts); |
---|
| 1197 | printf (" Tx Interrupts:%-8lu\n", sc->txInterrupts); |
---|
| 1198 | printf (" Rx Packets:%-8u", sc->stats.rx_packets); |
---|
| 1199 | printf (" Tx Attempts:%-u\n", sc->stats.tx_packets); |
---|
| 1200 | |
---|
| 1201 | printf (" Rx Dropped:%-8u", sc->stats.rx_dropped); |
---|
| 1202 | printf (" Rx IP Packets:%-8u", sc->stats.rx_packets); |
---|
| 1203 | printf (" Tx Errors:%-8u\n", sc->stats.tx_errors); |
---|
| 1204 | printf (" Tx aborted:%-8u", sc->stats.tx_aborted_errors); |
---|
| 1205 | printf (" Tx Dropped:%-8u\n", sc->stats.tx_dropped); |
---|
| 1206 | printf (" Tx IP packets:%-8u", sc->stats.tx_packets); |
---|
| 1207 | |
---|
| 1208 | printf (" Collisions Detected:%-8u\n", sc->stats.collisions); |
---|
| 1209 | printf (" Tx Heartbeat Errors:%-8u", sc->stats.tx_heartbeat_errors); |
---|
| 1210 | printf (" Tx Carrier Errors:%-8u\n", sc->stats.tx_carrier_errors); |
---|
| 1211 | printf (" Tx Aborted Errors:%-8u", sc->stats.tx_aborted_errors); |
---|
| 1212 | printf (" Rx Length Errors:%-8u\n", sc->stats.rx_length_errors); |
---|
| 1213 | printf (" Rx Overrun Errors:%-8u", sc->stats.rx_over_errors); |
---|
| 1214 | printf (" Rx Fifo Errors:%-8u\n", sc->stats.rx_fifo_errors); |
---|
| 1215 | printf (" Rx Framing Errors:%-8u", sc->stats.rx_frame_errors); |
---|
| 1216 | printf (" Rx crc errors:%-8u\n", sc->stats.rx_crc_errors); |
---|
| 1217 | |
---|
| 1218 | printf (" TX WAITS: %-8lu\n", sc->txRawWait); |
---|
| 1219 | |
---|
| 1220 | printf (" NIC resets: %-8u\n", sc->stats.nic_reset_count); |
---|
| 1221 | |
---|
| 1222 | printf(" NIC reports\n"); |
---|
| 1223 | |
---|
| 1224 | dump_scb(); |
---|
| 1225 | } |
---|
| 1226 | |
---|
| 1227 | |
---|
| 1228 | /*********************************************************************** |
---|
| 1229 | *************************** LOCAL ROUTINES **************************** |
---|
| 1230 | ***********************************************************************/ |
---|
| 1231 | |
---|
| 1232 | |
---|
| 1233 | /*********************************************************************** |
---|
| 1234 | * Function: void uti596_initialize_hardware |
---|
| 1235 | * |
---|
| 1236 | * Description: |
---|
| 1237 | ***********************************************************************/ |
---|
| 1238 | void uti596_initialize_hardware( |
---|
| 1239 | uti596_softc_ *sc |
---|
| 1240 | ) |
---|
| 1241 | { |
---|
| 1242 | int boguscnt = 1000; |
---|
| 1243 | rtems_isr_entry dummy; |
---|
| 1244 | |
---|
| 1245 | printk(("uti596_initialize_hardware: begins\n")) |
---|
| 1246 | |
---|
| 1247 | pccchip2->LANC_berr_ctl = 0x40; /* Enable snooping */ |
---|
| 1248 | |
---|
| 1249 | /* reset the board */ |
---|
| 1250 | i82596->port_lower = 0x0000; /* Each Port access must consist of two 16-bit writes */ |
---|
| 1251 | i82596->port_upper = 0x0000; |
---|
| 1252 | |
---|
| 1253 | /* allocate enough memory for the Scp block to be aligned on 16 bit boundary */ |
---|
| 1254 | uti596_softc.pScp = (i596_scp *) calloc(1,sizeof(struct i596_scp) + 0xf); |
---|
| 1255 | |
---|
| 1256 | #ifdef DBG_INIT |
---|
| 1257 | printk(("uti596_initialize_hardware: Scp address initially %p\n", sc->pScp)) |
---|
| 1258 | #endif |
---|
| 1259 | |
---|
| 1260 | /* align the block */ |
---|
| 1261 | sc->pScp = (i596_scp *) |
---|
| 1262 | ((((int)uti596_softc.pScp) + 0xf) & 0xfffffff0); |
---|
| 1263 | |
---|
| 1264 | #ifdef DBG_INIT |
---|
| 1265 | printk(("uti596_initialize_hardware: change scp address to : %p\n",sc->pScp)) |
---|
| 1266 | #endif |
---|
| 1267 | |
---|
| 1268 | /* change the scp address */ |
---|
| 1269 | #ifdef DBG_INIT |
---|
| 1270 | printk(("uti596_initialize_hardware: Change the SCP address\n")) |
---|
| 1271 | #endif |
---|
| 1272 | |
---|
| 1273 | /* reset the board */ |
---|
| 1274 | i82596->port_lower = 0x0000; |
---|
| 1275 | i82596->port_upper = 0x0000; |
---|
| 1276 | |
---|
| 1277 | /* supply the Scp address |
---|
| 1278 | * Lower Command Word D31-D16; Upper Command Word D15-D0 |
---|
| 1279 | */ |
---|
| 1280 | i82596->port_lower = (((int)sc->pScp) & 0xfff0) | 0x0002; |
---|
| 1281 | i82596->port_upper = (((int)sc->pScp) >> 16 ) & 0xffff; |
---|
| 1282 | |
---|
| 1283 | |
---|
| 1284 | /* write the SYSBUS: interrupt pin active high, LOCK disabled, |
---|
| 1285 | * internal triggering, linear mode |
---|
| 1286 | */ |
---|
| 1287 | sc->pScp->sysbus = word_swap(0x00540000); |
---|
| 1288 | |
---|
| 1289 | /* provide the iscp to the scp, keep a pointer for our use */ |
---|
| 1290 | sc->pScp->iscp_val = word_swap((unsigned long)&sc->iscp); |
---|
| 1291 | sc->pScp->iscp = &sc->iscp; |
---|
| 1292 | |
---|
| 1293 | /* provide the scb to the iscp, keep a pointer for our use */ |
---|
| 1294 | sc->iscp.scb_val = word_swap((unsigned long)&sc->scb); |
---|
| 1295 | sc->iscp.scb = &sc->scb; |
---|
| 1296 | |
---|
| 1297 | /* set the busy flag in the iscp */ |
---|
| 1298 | sc->iscp.stat = word_swap(0x00000001); |
---|
| 1299 | |
---|
| 1300 | /* the command block list (CBL) is empty */ |
---|
| 1301 | sc->scb.Cmd_val = (unsigned long) I596_NULL; /* all 1's */ |
---|
| 1302 | sc->pCmdHead = sc->scb.pCmd = I596_NULL; /* all 1's */ |
---|
| 1303 | |
---|
| 1304 | #ifdef DBG_596 |
---|
| 1305 | printk(("uti596_initialize_hardware: Starting i82596.\n")) |
---|
| 1306 | #endif |
---|
| 1307 | |
---|
| 1308 | /* Issue CA: pass the scb address to the 596 */ |
---|
| 1309 | i82596->chan_attn = 0x00000000; |
---|
| 1310 | |
---|
| 1311 | UTI_WAIT_TICKS |
---|
| 1312 | |
---|
| 1313 | /* Wait for the 596 to read the SCB address and clear 'stat' */ |
---|
| 1314 | while (sc->iscp.stat) { |
---|
| 1315 | if (--boguscnt == 0) { |
---|
| 1316 | printk(("initialize_hardware: timed out with status %4.4lx\n", |
---|
| 1317 | sc->iscp.stat )) |
---|
| 1318 | break; |
---|
| 1319 | } |
---|
| 1320 | } /* end while */ |
---|
| 1321 | |
---|
| 1322 | /* clear the scb command word */ |
---|
| 1323 | sc->scb.command = 0; |
---|
| 1324 | |
---|
| 1325 | /* |
---|
| 1326 | * Configure interrupt control in PCCchip2 |
---|
| 1327 | */ |
---|
| 1328 | pccchip2->LANC_error = 0xff; /* clear status register */ |
---|
| 1329 | pccchip2->LANC_int_ctl = 0x5d; /* lvl 5, enabled, edge-sensitive rising */ |
---|
| 1330 | pccchip2->LANC_berr_ctl = 0x5d; /* bus error: lvl 5, enabled, snoop control |
---|
| 1331 | * will supply dirty data and leave dirty data |
---|
| 1332 | * on read access and sink any data on write |
---|
| 1333 | */ |
---|
| 1334 | |
---|
| 1335 | /* |
---|
| 1336 | * Install the interrupt handler |
---|
| 1337 | * calls rtems_interrupt_catch |
---|
| 1338 | */ |
---|
| 1339 | dummy = (rtems_isr_entry) set_vector( uti596_DynamicInterruptHandler, 0x57, 1 ); |
---|
| 1340 | |
---|
| 1341 | |
---|
| 1342 | /* Initialize the 82596 memory */ |
---|
| 1343 | uti596_initMem(sc); |
---|
| 1344 | |
---|
| 1345 | #ifdef DBG_INIT |
---|
| 1346 | printk(("uti596_initialize_hardware: After attach, status of board = 0x%x\n", sc->scb.status )) |
---|
| 1347 | #endif |
---|
| 1348 | } |
---|
| 1349 | |
---|
| 1350 | /*********************************************************************** |
---|
| 1351 | * Function: uti596_initMem |
---|
| 1352 | * |
---|
| 1353 | * Description: |
---|
| 1354 | * creates the necessary descriptors for the |
---|
| 1355 | * uti596 board, hooks the interrupt, and starts the board. |
---|
| 1356 | * Assumes that interrupts are hooked. |
---|
| 1357 | * |
---|
| 1358 | * Algorithm: |
---|
| 1359 | * |
---|
| 1360 | ***********************************************************************/ |
---|
| 1361 | |
---|
| 1362 | void uti596_initMem( |
---|
| 1363 | uti596_softc_ * sc |
---|
| 1364 | ) |
---|
| 1365 | { |
---|
| 1366 | int i,count; |
---|
| 1367 | i596_tbd *pTbd, *pPrev; |
---|
| 1368 | |
---|
| 1369 | #ifdef DBG_INIT |
---|
| 1370 | printk(("uti596_initMem: begins\n")) |
---|
| 1371 | #endif |
---|
| 1372 | |
---|
| 1373 | sc->resetDone = 0; |
---|
| 1374 | |
---|
| 1375 | /* |
---|
| 1376 | * Set up receive frame area (RFA) |
---|
| 1377 | */ |
---|
| 1378 | #ifdef DBG_INIT |
---|
| 1379 | printk(("uti596_initMem: Initializing the RFA...\n")) |
---|
| 1380 | #endif |
---|
| 1381 | i = uti596_initRFA( sc->rxBdCount ); |
---|
| 1382 | if ( i < sc->rxBdCount ) { |
---|
| 1383 | printk(("init_rfd: only able to allocate %d receive frame descriptors\n", i)) |
---|
| 1384 | } |
---|
| 1385 | |
---|
| 1386 | sc->scb.Rfd_val = word_swap((unsigned long)sc->pBeginRFA); |
---|
| 1387 | sc->scb.pRfd = sc->pBeginRFA; |
---|
| 1388 | |
---|
| 1389 | /* |
---|
| 1390 | * Diagnose the health of the board |
---|
| 1391 | * send the CU a diagnostic command |
---|
| 1392 | */ |
---|
| 1393 | #ifdef DBG_INIT |
---|
| 1394 | printk(("uti596_initMem: Running diagnostics...\n")) |
---|
| 1395 | #endif |
---|
| 1396 | uti596Diagnose(1); |
---|
| 1397 | |
---|
| 1398 | /* |
---|
| 1399 | * Configure the 82596 |
---|
| 1400 | * send the CU a configure command with our initial setup |
---|
| 1401 | */ |
---|
| 1402 | #ifdef DBG_INIT |
---|
| 1403 | printk(("uti596_initMem: Configuring...\n")) |
---|
| 1404 | #endif |
---|
| 1405 | sc->set_conf.cmd.command = CmdConfigure; |
---|
| 1406 | memcpy (sc->set_conf.data, uti596initSetup, 14); |
---|
| 1407 | uti596addPolledCmd( (i596_cmd *) &sc->set_conf); |
---|
| 1408 | |
---|
| 1409 | /* Poll for successful command completion */ |
---|
| 1410 | count = 2000; |
---|
| 1411 | while( !( sc->set_conf.cmd.status & STAT_C ) && --count ) { |
---|
| 1412 | printk((".")) |
---|
| 1413 | } |
---|
| 1414 | |
---|
| 1415 | if ( count ) { |
---|
| 1416 | printk(("Configure OK, count = %d\n",count)) |
---|
| 1417 | } |
---|
| 1418 | else { |
---|
| 1419 | printk(("***Configure failed\n")) |
---|
| 1420 | } |
---|
| 1421 | /* |
---|
| 1422 | * Set up the Internet Address |
---|
| 1423 | * send the CU an IA-setup command |
---|
| 1424 | */ |
---|
| 1425 | #ifdef DBG_INIT |
---|
| 1426 | printk(("uti596_initMem: Setting Address...\n")) |
---|
| 1427 | #endif |
---|
| 1428 | sc->set_add.cmd.command = CmdSASetup; |
---|
| 1429 | for ( i=0; i<6; i++) { |
---|
| 1430 | sc->set_add.data[i]=sc->arpcom.ac_enaddr[i]; |
---|
| 1431 | #ifdef DBG_INIT |
---|
| 1432 | printk(("uti596_initMem: copying byte %d: 0x%x\n", i, sc->set_add.data[i])) |
---|
| 1433 | #endif |
---|
| 1434 | } |
---|
| 1435 | sc->cmdOk = 0; |
---|
| 1436 | uti596addPolledCmd((i596_cmd *)&sc->set_add); |
---|
| 1437 | |
---|
| 1438 | /* Poll for successful command completion */ |
---|
| 1439 | count = 2000; |
---|
| 1440 | while( !(sc->set_add.cmd.status & STAT_C ) && --count) { |
---|
| 1441 | printk((".")) |
---|
| 1442 | } |
---|
| 1443 | |
---|
| 1444 | if ( count ) { |
---|
| 1445 | printk(("Set Address OK, count= %d\n",count)) |
---|
| 1446 | } |
---|
| 1447 | else { |
---|
| 1448 | printk(("Set Address Failed\n")) |
---|
| 1449 | } |
---|
| 1450 | #ifdef DBG_INIT |
---|
| 1451 | printk(( "uti596_initMem: After initialization, status and command: 0x%x, 0x%x\n", |
---|
| 1452 | sc->scb.status, sc->scb.status)) |
---|
| 1453 | #endif |
---|
| 1454 | |
---|
| 1455 | /* |
---|
| 1456 | *Initialize transmit buffer descriptors |
---|
| 1457 | */ |
---|
| 1458 | #ifdef DBG_INIT |
---|
| 1459 | printk(( "uti596_initMem:Initializing TBDs...\n")) |
---|
| 1460 | #endif |
---|
| 1461 | sc->pLastUnkRFD = I596_NULL; |
---|
| 1462 | sc->pTxCmd = (i596_tx *) calloc (1,sizeof (struct i596_tx) ); |
---|
| 1463 | sc->pTbd = (i596_tbd *) calloc (1,sizeof (struct i596_tbd) ); |
---|
| 1464 | sc->pTxCmd->pTbd = (i596_tbd *) word_swap ((unsigned long) sc->pTbd); |
---|
| 1465 | sc->pTxCmd->cmd.command = CMD_FLEX|CmdTx; |
---|
| 1466 | sc->pTxCmd->pad = 0; |
---|
| 1467 | sc->pTxCmd->count = 0; /* all bytes are in list of TBD's */ |
---|
| 1468 | |
---|
| 1469 | pPrev = pTbd = sc->pTbd; |
---|
| 1470 | |
---|
| 1471 | /* Allocate a linked list of tbd's each with it's 'next' field written |
---|
| 1472 | * with upper and lower words swapped (for big endian), and mark the end. |
---|
| 1473 | */ |
---|
| 1474 | for ( i=0; i<sc->txBdCount; i++) { |
---|
| 1475 | pTbd = (i596_tbd *) calloc (1,sizeof (struct i596_tbd) ); |
---|
| 1476 | pPrev->next = (i596_tbd *) word_swap ((unsigned long) pTbd); |
---|
| 1477 | pPrev = pTbd; |
---|
| 1478 | } |
---|
| 1479 | pTbd->next = I596_NULL; |
---|
| 1480 | |
---|
| 1481 | /* Padding used to fill short tx frames */ |
---|
| 1482 | memset ( &sc->zeroes, 0, 64); |
---|
| 1483 | |
---|
| 1484 | #ifdef DBG_596 |
---|
| 1485 | printk(( "uti596_initMem: After receiver start, status and command: 0x%x, 0x%x\n", |
---|
| 1486 | sc->scb.status, sc->scb.status)) |
---|
| 1487 | #endif |
---|
| 1488 | |
---|
| 1489 | #ifdef DBG_596 |
---|
| 1490 | printk(("uti596_initMem allows ISR's\n")) |
---|
| 1491 | #endif |
---|
| 1492 | sc->resetDone = 1; /* now need ISR */ |
---|
| 1493 | } |
---|
| 1494 | |
---|
| 1495 | /*********************************************************************** |
---|
| 1496 | * Function: uti596initRFA(int num) |
---|
| 1497 | * |
---|
| 1498 | * Description: |
---|
| 1499 | * attempts to allocate and initialize ( chain together ) |
---|
| 1500 | * the requested number of FD's |
---|
| 1501 | * |
---|
| 1502 | * Algorithm: |
---|
| 1503 | * |
---|
| 1504 | ***********************************************************************/ |
---|
| 1505 | |
---|
| 1506 | int uti596_initRFA( int num ) |
---|
| 1507 | { |
---|
| 1508 | i596_rfd *pRfd; |
---|
| 1509 | int i = 0; |
---|
| 1510 | |
---|
| 1511 | #ifdef DBG_596 |
---|
| 1512 | printk(("uti596_initRFA: begins\n Requested frame descriptors ... %d.\n", num)) |
---|
| 1513 | #endif |
---|
| 1514 | |
---|
| 1515 | /* |
---|
| 1516 | * Create the first RFD in the RFA |
---|
| 1517 | */ |
---|
| 1518 | pRfd = (i596_rfd *) calloc (1, sizeof (struct i596_rfd)); |
---|
| 1519 | if ( !pRfd ) { |
---|
| 1520 | printk(("Can't allocate first buffer.\n")) |
---|
| 1521 | return 0; |
---|
| 1522 | } |
---|
| 1523 | else { |
---|
| 1524 | uti596_softc.countRFD = 1; |
---|
| 1525 | uti596_softc.pBeginRFA = uti596_softc.pEndRFA = pRfd; |
---|
| 1526 | printk(("First Rfd allocated @: %p\n", |
---|
| 1527 | uti596_softc.pBeginRFA)) |
---|
| 1528 | } |
---|
| 1529 | |
---|
| 1530 | /* Create remaining RFAs */ |
---|
| 1531 | for (i = 1; i < num; i++) { |
---|
| 1532 | pRfd = (i596_rfd *) calloc (1, sizeof (struct i596_rfd) ); |
---|
| 1533 | if ( pRfd != NULL ) { |
---|
| 1534 | uti596_softc.countRFD++; /* update count */ |
---|
| 1535 | uti596_softc.pEndRFA->next = |
---|
| 1536 | (i596_rfd *) word_swap ((unsigned long) pRfd); /* write the link */ |
---|
| 1537 | uti596_softc.pEndRFA = pRfd; /* move the end */ |
---|
| 1538 | #ifdef DBG_596_RFA |
---|
| 1539 | printk(("uti596_initRFA: Allocated RFD @ %p\n", pRfd)) |
---|
| 1540 | #endif |
---|
| 1541 | } |
---|
| 1542 | else { |
---|
| 1543 | printk(("Can't allocate all buffers: only %d allocated\n", i)) |
---|
| 1544 | break; |
---|
| 1545 | } |
---|
| 1546 | } /* end for */ |
---|
| 1547 | |
---|
| 1548 | uti596_softc.pEndRFA->next = I596_NULL; |
---|
| 1549 | UTI_596_ASSERT(uti596_softc.countRFD == RX_BUF_COUNT,"INIT:WRONG RFD COUNT\n" ) |
---|
| 1550 | |
---|
| 1551 | #ifdef DBG_596_RFA |
---|
| 1552 | printk (("uti596_initRFA: Head of RFA is buffer %p \n\ |
---|
| 1553 | uti596_initRFA: End of RFA is buffer %p \n", |
---|
| 1554 | uti596_softc.pBeginRFA, |
---|
| 1555 | uti596_softc.pEndRFA )) |
---|
| 1556 | #endif |
---|
| 1557 | /* Initialize the RFD's */ |
---|
| 1558 | for ( pRfd = uti596_softc.pBeginRFA; |
---|
| 1559 | pRfd != I596_NULL; |
---|
| 1560 | pRfd = (i596_rfd *) word_swap ((unsigned long)pRfd->next) ) { |
---|
| 1561 | |
---|
| 1562 | pRfd->cmd = 0x0000; |
---|
| 1563 | pRfd->stat = 0x0000; |
---|
| 1564 | pRfd->pRbd = I596_NULL; |
---|
| 1565 | pRfd->count = 0; /* number of bytes in buffer: usually less than size */ |
---|
| 1566 | pRfd->size = 1532; /* was 1532; buffer size ( All RBD ) */ |
---|
| 1567 | if ( pRfd -> data == NULL ) { |
---|
| 1568 | printk(("Can't allocate the RFD data buffer\n")) |
---|
| 1569 | } |
---|
| 1570 | } |
---|
| 1571 | |
---|
| 1572 | /* mark the last RFD as the last one in the RDL */ |
---|
| 1573 | uti596_softc.pEndRFA -> cmd = CMD_EOL; |
---|
| 1574 | |
---|
| 1575 | uti596_softc.pSavedRfdQueue = |
---|
| 1576 | uti596_softc.pEndSavedQueue = I596_NULL; /* initially empty */ |
---|
| 1577 | |
---|
| 1578 | uti596_softc.savedCount = 0; |
---|
| 1579 | |
---|
| 1580 | uti596_softc.nop.cmd.command = CmdNOp; /* initialize the nop command */ |
---|
| 1581 | |
---|
| 1582 | return (i); /* the number of allocated buffers */ |
---|
| 1583 | } |
---|
| 1584 | |
---|
| 1585 | /*********************************************************************** |
---|
| 1586 | * Function: uti596addPolledCmd |
---|
| 1587 | * |
---|
| 1588 | * Description: |
---|
| 1589 | * This routine issues a single command then polls for it's |
---|
| 1590 | * completion. |
---|
| 1591 | * |
---|
| 1592 | * Algorithm: |
---|
| 1593 | * Give the command to the driver. ( CUC_START is ALWAYS required ) |
---|
| 1594 | * Poll for completion. |
---|
| 1595 | * |
---|
| 1596 | ***********************************************************************/ |
---|
| 1597 | |
---|
| 1598 | void uti596addPolledCmd( |
---|
| 1599 | i596_cmd *pCmd |
---|
| 1600 | ) |
---|
| 1601 | { |
---|
| 1602 | |
---|
| 1603 | #ifdef DBG_596 |
---|
| 1604 | printk(("uti596addPolledCmd: Adding command 0x%x\n", pCmd -> command )) |
---|
| 1605 | #endif |
---|
| 1606 | |
---|
| 1607 | #ifdef DBG_POLLED_CMD |
---|
| 1608 | |
---|
| 1609 | switch ( pCmd -> command & 0x7 ) { /* check bottom 3 bits */ |
---|
| 1610 | case CmdConfigure: |
---|
| 1611 | printk(("uti596addPolledCmd: Configure Command 0x%x\n", pCmd->command)) |
---|
| 1612 | break; |
---|
| 1613 | case CmdSASetup: |
---|
| 1614 | printk(("uti596addPolledCmd: Set CMDress Command 0x%x\n", pCmd->command)) |
---|
| 1615 | break; |
---|
| 1616 | case CmdMulticastList: |
---|
| 1617 | printk(("uti596addPolledCmd: Multi-cast list 0x%x\n", pCmd->command)) |
---|
| 1618 | break; |
---|
| 1619 | case CmdNOp: |
---|
| 1620 | printk(("uti596addPolledCmd: NO op 0x%x\n", pCmd->command)) |
---|
| 1621 | break; |
---|
| 1622 | case CmdTDR: |
---|
| 1623 | printk(("uti596addPolledCmd: TDR 0x%x\n", pCmd->command)) |
---|
| 1624 | break; |
---|
| 1625 | case CmdDump: |
---|
| 1626 | printk(("uti596addPolledCmd: Dump 0x%x\n", pCmd->command)) |
---|
| 1627 | break; |
---|
| 1628 | case CmdDiagnose: |
---|
| 1629 | printk(("uti596addPolledCmd: Diagnose 0x%x\n", pCmd->command)) |
---|
| 1630 | break; |
---|
| 1631 | case CmdTx: |
---|
| 1632 | break; |
---|
| 1633 | default: |
---|
| 1634 | printk(("PolledCMD: ****Unknown Command encountered 0x%x\n", pCmd->command)) |
---|
| 1635 | break; |
---|
| 1636 | } /* end switch */ |
---|
| 1637 | |
---|
| 1638 | #endif |
---|
| 1639 | |
---|
| 1640 | pCmd->status = 0; |
---|
| 1641 | pCmd->command |= CMD_EOL ; /* only command in list*/ |
---|
| 1642 | |
---|
| 1643 | pCmd->next = I596_NULL; |
---|
| 1644 | |
---|
| 1645 | UTI_WAIT_COMMAND_ACCEPTED(10000,"Add Polled command: wait prev"); |
---|
| 1646 | |
---|
| 1647 | uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = pCmd; |
---|
| 1648 | uti596_softc.scb.Cmd_val = word_swap((unsigned long)pCmd); |
---|
| 1649 | uti596_softc.scb.command = CUC_START; |
---|
| 1650 | i82596->chan_attn = 0x00000000; |
---|
| 1651 | |
---|
| 1652 | UTI_WAIT_COMMAND_ACCEPTED(10000,"Add Polled command: start"); |
---|
| 1653 | uti596_softc.pCmdHead = uti596_softc.pCmdTail = uti596_softc.scb.pCmd = I596_NULL; |
---|
| 1654 | uti596_softc.scb.Cmd_val = (unsigned long) I596_NULL; |
---|
| 1655 | |
---|
| 1656 | #ifdef DBG_POLLED_CMD |
---|
| 1657 | printk(("uti596addPolledCmd: Scb status & command 0x%x 0x%x\n", |
---|
| 1658 | uti596_softc.scb.status, |
---|
| 1659 | uti596_softc.scb.command )) |
---|
| 1660 | #endif |
---|
| 1661 | } |
---|
| 1662 | |
---|
| 1663 | |
---|
| 1664 | /*********************************************************************** |
---|
| 1665 | * Function: void uti596Diagnose |
---|
| 1666 | * |
---|
| 1667 | * Description: |
---|
| 1668 | * |
---|
| 1669 | ***********************************************************************/ |
---|
| 1670 | void uti596Diagnose( |
---|
| 1671 | int verbose |
---|
| 1672 | ) |
---|
| 1673 | { |
---|
| 1674 | i596_cmd diagnose; |
---|
| 1675 | int count=10000; |
---|
| 1676 | |
---|
| 1677 | diagnose.command = CmdDiagnose; |
---|
| 1678 | diagnose.status = 0; |
---|
| 1679 | uti596addPolledCmd(&diagnose); |
---|
| 1680 | while( !( diagnose.status & STAT_C ) && count ) { |
---|
| 1681 | if(verbose) { |
---|
| 1682 | printk((".")) |
---|
| 1683 | } |
---|
| 1684 | count --; |
---|
| 1685 | } |
---|
| 1686 | if(verbose) { |
---|
| 1687 | printk(("Status diagnostic: 0xa000 is a success ... 0x%2.2x\n", diagnose.status)) |
---|
| 1688 | } |
---|
| 1689 | } |
---|
| 1690 | |
---|
| 1691 | /*********************************************************************** |
---|
| 1692 | * Function: void uti596dequeue |
---|
| 1693 | * |
---|
| 1694 | * Description: |
---|
| 1695 | * removes an RFD from the received frame queue, |
---|
| 1696 | * |
---|
| 1697 | * Algorithm: |
---|
| 1698 | * |
---|
| 1699 | ***********************************************************************/ |
---|
| 1700 | i596_rfd * uti596dequeue( |
---|
| 1701 | i596_rfd ** ppQ |
---|
| 1702 | ) |
---|
| 1703 | { |
---|
| 1704 | ISR_Level level; |
---|
| 1705 | |
---|
| 1706 | i596_rfd * pRfd; |
---|
| 1707 | _ISR_Disable(level); |
---|
| 1708 | |
---|
| 1709 | /* invalid address, or empty queue or emptied queue */ |
---|
| 1710 | if( ppQ == NULL || *ppQ == NULL || *ppQ == I596_NULL) { |
---|
| 1711 | _ISR_Enable(level); |
---|
| 1712 | return I596_NULL; |
---|
| 1713 | } |
---|
| 1714 | |
---|
| 1715 | pRfd = *ppQ; /* The dequeued buffer */ |
---|
| 1716 | *ppQ = (i596_rfd *) \ |
---|
| 1717 | word_swap ((unsigned long) pRfd->next); /* advance the queue pointer */ |
---|
| 1718 | pRfd->next = I596_NULL; /* unlink the rfd being returned */ |
---|
| 1719 | |
---|
| 1720 | _ISR_Enable(level); |
---|
| 1721 | return pRfd; |
---|
| 1722 | } |
---|
| 1723 | |
---|
| 1724 | /*********************************************************************** |
---|
| 1725 | * Function: void uti596reset |
---|
| 1726 | * |
---|
| 1727 | * Description: |
---|
| 1728 | ***********************************************************************/ |
---|
| 1729 | void uti596reset( void ) |
---|
| 1730 | { |
---|
| 1731 | int i,count; |
---|
| 1732 | uti596_softc_ *sc = &uti596_softc; |
---|
| 1733 | /* i596_rfd * pRfd; */ |
---|
| 1734 | |
---|
| 1735 | #ifdef DBG_RESET |
---|
| 1736 | printk(("uti596reset: begin\n")) |
---|
| 1737 | #endif |
---|
| 1738 | |
---|
| 1739 | sc->resetDone = 0; |
---|
| 1740 | UTI_WAIT_COMMAND_ACCEPTED(10000, "reset: wait for previous command complete"); |
---|
| 1741 | uti596_reset_hardware(&uti596_softc); /* reset the ethernet hardware. must re-config */ |
---|
| 1742 | |
---|
| 1743 | #ifdef DBG_RESET |
---|
| 1744 | uti596Diagnose(1); |
---|
| 1745 | #endif |
---|
| 1746 | |
---|
| 1747 | sc->set_conf.cmd.command = CmdConfigure; |
---|
| 1748 | memcpy (sc->set_conf.data, uti596initSetup, 14); |
---|
| 1749 | uti596addPolledCmd( (i596_cmd *) &sc->set_conf); |
---|
| 1750 | |
---|
| 1751 | /* POLL */ |
---|
| 1752 | count = 2000; |
---|
| 1753 | while( !( sc->set_conf.cmd.status & STAT_C ) && --count ) { |
---|
| 1754 | printk((".")) |
---|
| 1755 | } |
---|
| 1756 | |
---|
| 1757 | if ( count ) { |
---|
| 1758 | printk(("Configure OK, count = %d\n",count)) |
---|
| 1759 | } |
---|
| 1760 | else { |
---|
| 1761 | printk(("reset: Configure failed\n")) |
---|
| 1762 | } |
---|
| 1763 | |
---|
| 1764 | /* |
---|
| 1765 | * Create the IA setup command |
---|
| 1766 | */ |
---|
| 1767 | |
---|
| 1768 | #ifdef DBG_RESET |
---|
| 1769 | printk(("uti596reset: Setting Address\n")) |
---|
| 1770 | #endif |
---|
| 1771 | sc->set_add.cmd.command = CmdSASetup; |
---|
| 1772 | for ( i=0; i<6; i++) { |
---|
| 1773 | sc->set_add.data[i]=sc->arpcom.ac_enaddr[i]; |
---|
| 1774 | } |
---|
| 1775 | sc->cmdOk = 0; |
---|
| 1776 | uti596addPolledCmd((i596_cmd *)&sc->set_add); |
---|
| 1777 | |
---|
| 1778 | count = 2000; |
---|
| 1779 | while( !(sc->set_add.cmd.status & STAT_C ) && --count) { |
---|
| 1780 | printk((".")) |
---|
| 1781 | } |
---|
| 1782 | if ( count ) { |
---|
| 1783 | printk(("Reset Set Address OK, count= %d\n",count)) |
---|
| 1784 | } |
---|
| 1785 | else { |
---|
| 1786 | printk(("Reset Set Address Failed\n")) |
---|
| 1787 | } |
---|
| 1788 | |
---|
| 1789 | sc->pCmdHead = sc->pCmdTail = sc->scb.pCmd = I596_NULL; |
---|
| 1790 | |
---|
| 1791 | #ifdef DBG_RESET |
---|
| 1792 | printk(( "uti596reset: After reset, status and command: 0x%x, 0x%x\n", |
---|
| 1793 | sc->scb.status, sc->scb.status)) |
---|
| 1794 | #endif |
---|
| 1795 | |
---|
| 1796 | /* restore the RFA */ |
---|
| 1797 | |
---|
| 1798 | /* dumpQ(); */ |
---|
| 1799 | |
---|
| 1800 | if ( sc->pLastUnkRFD != I596_NULL ) { |
---|
| 1801 | sc-> pEndRFA = sc->pLastUnkRFD; /* The end position can be updated */ |
---|
| 1802 | sc-> pLastUnkRFD = I596_NULL; |
---|
| 1803 | } |
---|
| 1804 | |
---|
| 1805 | sc->pEndRFA->next = sc->pSavedRfdQueue; |
---|
| 1806 | if ( sc->pSavedRfdQueue != I596_NULL ) { |
---|
| 1807 | sc->pEndRFA = sc->pEndSavedQueue; |
---|
| 1808 | sc->pSavedRfdQueue = sc->pEndSavedQueue = I596_NULL; |
---|
| 1809 | sc -> countRFD = sc->rxBdCount ; |
---|
| 1810 | } |
---|
| 1811 | |
---|
| 1812 | sc->scb.pRfd = sc->pBeginRFA; /* readdress the head of the RFA in the SCB */ |
---|
| 1813 | sc->scb.Rfd_val = word_swap((unsigned long)sc->pBeginRFA); |
---|
| 1814 | |
---|
| 1815 | uti596clearListStatus(sc->pBeginRFA ); |
---|
| 1816 | |
---|
| 1817 | /* dumpQ(); */ |
---|
| 1818 | |
---|
| 1819 | printk(("Reset:Starting NIC\n")) |
---|
| 1820 | sc->scb.command = RX_START; |
---|
| 1821 | sc->started = 1; /* we assume that the start works */ |
---|
| 1822 | sc->resetDone = 1; |
---|
| 1823 | i82596->chan_attn = 0x00000000; |
---|
| 1824 | UTI_WAIT_COMMAND_ACCEPTED(4000, "reset"); |
---|
| 1825 | printk(("Reset:Start complete \n")) |
---|
| 1826 | UTI_596_ASSERT(sc->pCmdHead == I596_NULL, "Reset: CMD not cleared\n") |
---|
| 1827 | |
---|
| 1828 | #ifdef DBG_RESET |
---|
| 1829 | printk(("uti596reset: completed\n")) |
---|
| 1830 | #endif |
---|
| 1831 | } |
---|
| 1832 | |
---|
| 1833 | |
---|
| 1834 | /*********************************************************************** |
---|
| 1835 | * Function: void uti596_reset_hardware |
---|
| 1836 | * |
---|
| 1837 | * Description: |
---|
| 1838 | ***********************************************************************/ |
---|
| 1839 | void uti596_reset_hardware( |
---|
| 1840 | uti596_softc_ *sc |
---|
| 1841 | ) |
---|
| 1842 | { |
---|
| 1843 | int boguscnt = 1000; |
---|
| 1844 | rtems_status_code status_code; |
---|
| 1845 | i596_cmd *pCmd; |
---|
| 1846 | |
---|
| 1847 | |
---|
| 1848 | printk(("uti596_reset_hardware\n")) |
---|
| 1849 | pCmd = sc->pCmdHead; /* This is a tx command for sure (99.99999%) */ |
---|
| 1850 | |
---|
| 1851 | /* reset the board */ |
---|
| 1852 | i82596->port_lower = 0x0000; |
---|
| 1853 | i82596->port_upper = 0x0000; |
---|
| 1854 | |
---|
| 1855 | if ( sc->pScp == NULL ) { |
---|
| 1856 | printk(("Calloc scp\n")) |
---|
| 1857 | uti596_softc.pScp = (i596_scp *) calloc(1,sizeof(struct i596_scp) + 0xf); |
---|
| 1858 | } |
---|
| 1859 | |
---|
| 1860 | #ifdef DBG_RESET |
---|
| 1861 | printk(("uti596_reset_hardware: Scp address %p\n", sc->pScp)) |
---|
| 1862 | #endif |
---|
| 1863 | |
---|
| 1864 | /* align the block */ |
---|
| 1865 | sc->pScp = (i596_scp *) |
---|
| 1866 | ((((int)uti596_softc.pScp) + 0xf) & 0xfffffff0); |
---|
| 1867 | |
---|
| 1868 | #ifdef DBG_RESET |
---|
| 1869 | printk(("uti596_reset_hardware: change scp address to : %p\n",sc->pScp)) |
---|
| 1870 | #endif |
---|
| 1871 | |
---|
| 1872 | /* change the scp address */ |
---|
| 1873 | #ifdef DBG_RESET |
---|
| 1874 | printk(("uti596_reset_hardware: Change the SCP address\n")) |
---|
| 1875 | #endif |
---|
| 1876 | |
---|
| 1877 | /* reset the board */ |
---|
| 1878 | i82596->port_lower = 0x0000; |
---|
| 1879 | i82596->port_upper = 0x0000; |
---|
| 1880 | |
---|
| 1881 | /* supply the Scp address |
---|
| 1882 | * Lower Command Word D31-D16; Upper Command Word D15-D0 |
---|
| 1883 | */ |
---|
| 1884 | i82596->port_lower = (((int)sc->pScp) & 0xfff0) | 0x0002; |
---|
| 1885 | i82596->port_upper = (((int)sc->pScp) >> 16 ) & 0xffff; |
---|
| 1886 | |
---|
| 1887 | /* write the SYSBUS: interrupt pin active high, LOCK disabled, |
---|
| 1888 | * internal triggering, linear mode |
---|
| 1889 | */ |
---|
| 1890 | sc->pScp->sysbus = word_swap(0x00540000); |
---|
| 1891 | |
---|
| 1892 | /* provide the iscp to the scp, keep a pointer for our use */ |
---|
| 1893 | sc->pScp->iscp_val = word_swap((unsigned long)&sc->iscp); |
---|
| 1894 | sc->pScp->iscp = &sc->iscp; |
---|
| 1895 | |
---|
| 1896 | /* provide the scb to the iscp, keep a pointer for our use */ |
---|
| 1897 | sc->iscp.scb_val = word_swap((unsigned long)&sc->scb); |
---|
| 1898 | sc->iscp.scb = &sc->scb; |
---|
| 1899 | |
---|
| 1900 | /* set the busy flag in the iscp */ |
---|
| 1901 | sc->iscp.stat = word_swap(0x00000001); |
---|
| 1902 | |
---|
| 1903 | /* the command block list (CBL) is empty */ |
---|
| 1904 | sc->scb.Cmd_val = (unsigned long) I596_NULL; /* all 1's */ |
---|
| 1905 | sc->pCmdHead = sc->scb.pCmd = I596_NULL; /* all 1's */ |
---|
| 1906 | |
---|
| 1907 | /* |
---|
| 1908 | * Wake the transmitter if needed. |
---|
| 1909 | */ |
---|
| 1910 | if ( uti596_softc.txDaemonTid && pCmd != I596_NULL ) { |
---|
| 1911 | printk(("****RESET: wakes transmitter!\n")) |
---|
| 1912 | status_code = rtems_event_send (uti596_softc.txDaemonTid, |
---|
| 1913 | INTERRUPT_EVENT); |
---|
| 1914 | |
---|
| 1915 | if ( status_code != RTEMS_SUCCESSFUL ) { |
---|
| 1916 | printk(("****ERROR:Could NOT send event to tid 0x%x : %s\n", |
---|
| 1917 | uti596_softc.txDaemonTid, rtems_status_text (status_code) )) |
---|
| 1918 | } |
---|
| 1919 | } |
---|
| 1920 | |
---|
| 1921 | #ifdef DBG_596 |
---|
| 1922 | printk(("uti596_reset_hardware: starting i82596.\n")) |
---|
| 1923 | #endif |
---|
| 1924 | |
---|
| 1925 | /* Pass the scb address to the 596 */ |
---|
| 1926 | i82596->chan_attn = 0x00000000; |
---|
| 1927 | |
---|
| 1928 | while (sc->iscp.stat) |
---|
| 1929 | if (--boguscnt == 0) |
---|
| 1930 | { |
---|
| 1931 | printk(("reset_hardware: timed out with status %4.4lx\n", |
---|
| 1932 | sc->iscp.stat )) |
---|
| 1933 | break; |
---|
| 1934 | } |
---|
| 1935 | |
---|
| 1936 | /* clear the command word */ |
---|
| 1937 | sc->scb.command = 0; |
---|
| 1938 | |
---|
| 1939 | #ifdef DBG_RESET |
---|
| 1940 | printk(("uti596_reset_hardware: After reset_hardware, status of board = 0x%x\n", sc->scb.status )) |
---|
| 1941 | #endif |
---|
| 1942 | } |
---|
| 1943 | |
---|
| 1944 | /*********************************************************************** |
---|
| 1945 | * Function: uti596clearListStatus |
---|
| 1946 | * |
---|
| 1947 | * Description: |
---|
| 1948 | * Clear the stat fields for all rfd's |
---|
| 1949 | * Algorithm: |
---|
| 1950 | * |
---|
| 1951 | ***********************************************************************/ |
---|
| 1952 | |
---|
| 1953 | void uti596clearListStatus( |
---|
| 1954 | i596_rfd *pRfd |
---|
| 1955 | ) |
---|
| 1956 | { |
---|
| 1957 | while ( pRfd != I596_NULL ) { |
---|
| 1958 | pRfd -> stat = 0; |
---|
| 1959 | pRfd = (i596_rfd *) word_swap((unsigned long)pRfd-> next); |
---|
| 1960 | } |
---|
| 1961 | } |
---|
| 1962 | |
---|
| 1963 | /*********************************************************************** |
---|
| 1964 | * Function: send_packet |
---|
| 1965 | * |
---|
| 1966 | * Description: Send a raw ethernet packet |
---|
| 1967 | * |
---|
| 1968 | * Algorithm: |
---|
| 1969 | * increment some stats counters, |
---|
| 1970 | * create the transmit command, |
---|
| 1971 | * add the command to the CBL, |
---|
| 1972 | * wait for event |
---|
| 1973 | * |
---|
| 1974 | ***********************************************************************/ |
---|
| 1975 | |
---|
| 1976 | void send_packet( |
---|
| 1977 | struct ifnet *ifp, struct mbuf *m |
---|
| 1978 | ) |
---|
| 1979 | { |
---|
| 1980 | i596_tbd *pPrev = I596_NULL; |
---|
| 1981 | i596_tbd *pRemainingTbdList; |
---|
| 1982 | i596_tbd *pTbd; |
---|
| 1983 | struct mbuf *n, *input_m = m; |
---|
| 1984 | |
---|
| 1985 | uti596_softc_ *sc = ifp->if_softc; |
---|
| 1986 | |
---|
| 1987 | struct mbuf *l = NULL; |
---|
| 1988 | unsigned int length = 0; |
---|
| 1989 | rtems_status_code status; |
---|
| 1990 | int bd_count = 0; |
---|
| 1991 | rtems_event_set events; |
---|
| 1992 | |
---|
| 1993 | /* |
---|
| 1994 | * For all mbufs in the chain, |
---|
| 1995 | * fill a transmit buffer descriptor for each |
---|
| 1996 | */ |
---|
| 1997 | pTbd = (i596_tbd*) word_swap ((unsigned long)sc->pTxCmd->pTbd); |
---|
| 1998 | |
---|
| 1999 | do { |
---|
| 2000 | if (m->m_len) { |
---|
| 2001 | /* |
---|
| 2002 | * Fill in the buffer descriptor |
---|
| 2003 | */ |
---|
| 2004 | length += m->m_len; |
---|
| 2005 | pTbd->data = (char *) word_swap ((unsigned long) mtod (m, void *)); |
---|
| 2006 | pTbd->size = m->m_len; |
---|
| 2007 | pPrev = pTbd; |
---|
| 2008 | pTbd = (i596_tbd *) word_swap ((unsigned long) pTbd->next); |
---|
| 2009 | l = m; |
---|
| 2010 | m = m->m_next; |
---|
| 2011 | } |
---|
| 2012 | else { |
---|
| 2013 | /* |
---|
| 2014 | * Just toss empty mbufs |
---|
| 2015 | */ |
---|
| 2016 | MFREE (m, n); |
---|
| 2017 | m = n; |
---|
| 2018 | if (l != NULL) |
---|
| 2019 | l->m_next = m; |
---|
| 2020 | } |
---|
| 2021 | } while( m != NULL && ++bd_count < 16 ); |
---|
| 2022 | |
---|
| 2023 | /* This should never happen */ |
---|
| 2024 | if ( bd_count == 16 ) { |
---|
| 2025 | printk(("TX ERROR:Too many mbufs in the packet!!!\n")) |
---|
| 2026 | printk(("Must coalesce!\n")) |
---|
| 2027 | } |
---|
| 2028 | |
---|
| 2029 | if ( length < UTI_596_ETH_MIN_SIZE ) { |
---|
| 2030 | pTbd->data = (char *) word_swap ((unsigned long) sc->zeroes); /* add padding to pTbd */ |
---|
| 2031 | pTbd->size = UTI_596_ETH_MIN_SIZE - length; /* zeroes have no effect on the CRC */ |
---|
| 2032 | } |
---|
| 2033 | else |
---|
| 2034 | pTbd = pPrev; /* Don't use pTbd in the send routine */ |
---|
| 2035 | |
---|
| 2036 | /* Disconnect the packet from the list of Tbd's */ |
---|
| 2037 | pRemainingTbdList = (i596_tbd *) word_swap ((unsigned long)pTbd->next); |
---|
| 2038 | pTbd->next = I596_NULL; |
---|
| 2039 | pTbd->size |= UTI_596_END_OF_FRAME; |
---|
| 2040 | |
---|
| 2041 | #ifdef DBG_RAW |
---|
| 2042 | printk(("send_packet: RAW - Add cmd and sleep\n")) |
---|
| 2043 | #endif |
---|
| 2044 | |
---|
| 2045 | sc->rawsndcnt++; |
---|
| 2046 | |
---|
| 2047 | #ifdef DBG_RAW |
---|
| 2048 | printk(("send_packet: RAW - sending packet\n")) |
---|
| 2049 | #endif |
---|
| 2050 | |
---|
| 2051 | /* Sending Zero length packet: shouldn't happen */ |
---|
| 2052 | if (pTbd->size <= 0) return ; |
---|
| 2053 | |
---|
| 2054 | #ifdef DBG_INIT_3 |
---|
| 2055 | printk(("\nsend_packet: Transmitter adds packet\n")) |
---|
| 2056 | print_hdr ( sc->pTxCmd->pTbd->data ); /* print the first part */ |
---|
| 2057 | print_pkt ( sc->pTxCmd->pTbd->next->data ); /* print the first part */ |
---|
| 2058 | /* print_echo(sc->pTxCmd->pTbd->data); */ |
---|
| 2059 | #endif |
---|
| 2060 | |
---|
| 2061 | /* add the command to the output command queue */ |
---|
| 2062 | uti596addCmd ( (i596_cmd *) sc->pTxCmd ); |
---|
| 2063 | |
---|
| 2064 | /* sleep until the command has been processed or Timeout encountered. */ |
---|
| 2065 | status= rtems_bsdnet_event_receive (INTERRUPT_EVENT, |
---|
| 2066 | RTEMS_WAIT|RTEMS_EVENT_ANY, |
---|
| 2067 | RTEMS_NO_TIMEOUT, |
---|
| 2068 | &events); |
---|
| 2069 | |
---|
| 2070 | if ( status != RTEMS_SUCCESSFUL ) { |
---|
| 2071 | printk(("Could not sleep %s\n", rtems_status_text(status))) |
---|
| 2072 | } |
---|
| 2073 | |
---|
| 2074 | #ifdef DBG_RAW |
---|
| 2075 | printk(("send_packet: RAW - wake\n")) |
---|
| 2076 | #endif |
---|
| 2077 | |
---|
| 2078 | sc->txInterrupts++; |
---|
| 2079 | |
---|
| 2080 | #ifdef DBG_INIT_3 |
---|
| 2081 | printk(("\nsend_packet: Transmitter issued packet\n")) |
---|
| 2082 | print_hdr ( sc->pTxCmd->pTbd -> data ); /* print the first part */ |
---|
| 2083 | print_pkt ( sc->pTxCmd->pTbd ->next-> data ); /* print the first part */ |
---|
| 2084 | #endif |
---|
| 2085 | |
---|
| 2086 | if ( sc->pTxCmd -> cmd.status & STAT_OK ) { |
---|
| 2087 | sc->stats.tx_packets++; |
---|
| 2088 | } |
---|
| 2089 | else { |
---|
| 2090 | #ifdef DBG_RAW |
---|
| 2091 | printk(("******send_packet: Driver Error 0x%x\n", sc->pTxCmd -> cmd.status )) |
---|
| 2092 | #endif |
---|
| 2093 | sc->stats.tx_errors++; |
---|
| 2094 | if ( sc->pTxCmd->cmd.status & 0x0020 ) |
---|
| 2095 | sc->stats.tx_retries_exceeded++; |
---|
| 2096 | if (!(sc->pTxCmd->cmd.status & 0x0040)) |
---|
| 2097 | sc->stats.tx_heartbeat_errors++; |
---|
| 2098 | if ( sc->pTxCmd->cmd.status & 0x0400 ) |
---|
| 2099 | sc->stats.tx_carrier_errors++; |
---|
| 2100 | if ( sc->pTxCmd->cmd.status & 0x0800 ) |
---|
| 2101 | sc->stats.collisions++; |
---|
| 2102 | if ( sc->pTxCmd->cmd.status & 0x1000 ) |
---|
| 2103 | sc->stats.tx_aborted_errors++; |
---|
| 2104 | } /* end if stat_ok */ |
---|
| 2105 | |
---|
| 2106 | /* |
---|
| 2107 | * Restore the transmited buffer descriptor chain. |
---|
| 2108 | */ |
---|
| 2109 | pTbd -> next = (i596_tbd *) word_swap ((unsigned long)pRemainingTbdList); |
---|
| 2110 | |
---|
| 2111 | /* |
---|
| 2112 | * Free the mbufs used by the sender. |
---|
| 2113 | */ |
---|
| 2114 | m = input_m; |
---|
| 2115 | while ( m != NULL ) { |
---|
| 2116 | MFREE(m,n); |
---|
| 2117 | m = n; |
---|
| 2118 | } |
---|
| 2119 | } |
---|
| 2120 | |
---|
| 2121 | /*********************************************************************** |
---|
| 2122 | * Function: uti596addCmd |
---|
| 2123 | * |
---|
| 2124 | * Description: |
---|
| 2125 | * This routine adds a command onto the end of the |
---|
| 2126 | * command chain |
---|
| 2127 | * |
---|
| 2128 | * Algorithm: |
---|
| 2129 | * Add the command to the end of an existing chain, |
---|
| 2130 | * or start the chain and issue a CUC_START |
---|
| 2131 | * |
---|
| 2132 | * |
---|
| 2133 | ***********************************************************************/ |
---|
| 2134 | |
---|
| 2135 | /* static */ void uti596addCmd( |
---|
| 2136 | i596_cmd *pCmd |
---|
| 2137 | ) |
---|
| 2138 | { |
---|
| 2139 | ISR_Level level; |
---|
| 2140 | |
---|
| 2141 | #ifdef DBG_596 |
---|
| 2142 | printk(("uti596addCmd: Adding command 0x%x\n", pCmd -> command )) |
---|
| 2143 | #endif |
---|
| 2144 | |
---|
| 2145 | #ifdef DBG_ADD |
---|
| 2146 | |
---|
| 2147 | switch ( pCmd -> command & 0x7 ){ /* check bottom 3 bits */ |
---|
| 2148 | case CmdConfigure: |
---|
| 2149 | printk(("uti596addCmd: Configure Command 0x%x\n", pCmd->command)) |
---|
| 2150 | break; |
---|
| 2151 | case CmdSASetup: |
---|
| 2152 | printk(("uti596addCmd: Set Address Command 0x%x\n", pCmd->command)) |
---|
| 2153 | break; |
---|
| 2154 | case CmdMulticastList: |
---|
| 2155 | printk(("uti596addCmd: Multi-cast list 0x%x\n", pCmd->command)) |
---|
| 2156 | break; |
---|
| 2157 | case CmdNOp: |
---|
| 2158 | printk(("uti596addCmd: NO op 0x%x\n", pCmd->command)) |
---|
| 2159 | break; |
---|
| 2160 | case CmdTDR: |
---|
| 2161 | printk(("uti596addCmd: TDR 0x%x\n", pCmd->command)) |
---|
| 2162 | break; |
---|
| 2163 | case CmdDump: |
---|
| 2164 | printk(("uti596addCmd: Dump 0x%x\n", pCmd->command)) |
---|
| 2165 | break; |
---|
| 2166 | case CmdDiagnose: |
---|
| 2167 | printk(("uti596addCmd: Diagnose 0x%x\n", pCmd->command)) |
---|
| 2168 | break; |
---|
| 2169 | case CmdTx: |
---|
| 2170 | break; |
---|
| 2171 | default: |
---|
| 2172 | printk(("****Unknown Command encountered 0x%x\n", pCmd->command)) |
---|
| 2173 | break; |
---|
| 2174 | } /* end switch */ |
---|
| 2175 | #endif |
---|
| 2176 | |
---|
| 2177 | pCmd->status = 0; |
---|
| 2178 | pCmd->command |= (CMD_EOL | CMD_INTR ); /* all commands last in list & return an interrupt */ |
---|
| 2179 | |
---|
| 2180 | pCmd->next = I596_NULL; |
---|
| 2181 | |
---|
| 2182 | _ISR_Disable(level); |
---|
| 2183 | if (uti596_softc.pCmdHead == I596_NULL) |
---|
| 2184 | { |
---|
| 2185 | uti596_softc.pCmdHead = |
---|
| 2186 | uti596_softc.pCmdTail = |
---|
| 2187 | uti596_softc.scb.pCmd = pCmd; |
---|
| 2188 | uti596_softc.scb.Cmd_val = word_swap ((unsigned long)pCmd); |
---|
| 2189 | #ifdef DBG_596 |
---|
| 2190 | printk(("uti596addCmd: First Cmd\n")) |
---|
| 2191 | #endif |
---|
| 2192 | UTI_WAIT_COMMAND_ACCEPTED(10000,"add command"); /* wait for acceptance of previous command */ |
---|
| 2193 | uti596_softc.scb.command = CUC_START; |
---|
| 2194 | i82596->chan_attn = 0x00000000; |
---|
| 2195 | _ISR_Enable(level); |
---|
| 2196 | } |
---|
| 2197 | else |
---|
| 2198 | { |
---|
| 2199 | #ifdef DBG_596 |
---|
| 2200 | printk(("uti596addCmd: Chained Cmd\n")) |
---|
| 2201 | #endif |
---|
| 2202 | uti596_softc.pCmdTail->next = (i596_cmd *) word_swap ((unsigned long)pCmd); |
---|
| 2203 | uti596_softc.pCmdTail = pCmd; |
---|
| 2204 | _ISR_Enable(level); |
---|
| 2205 | } |
---|
| 2206 | |
---|
| 2207 | #ifdef DBG_596 |
---|
| 2208 | printk(("uti596addCmd: Scb status & command 0x%x 0x%x\n", |
---|
| 2209 | uti596_softc.scb.status, |
---|
| 2210 | uti596_softc.scb.command )) |
---|
| 2211 | #endif |
---|
| 2212 | } |
---|
| 2213 | |
---|
| 2214 | |
---|
| 2215 | /*********************************************************************** |
---|
| 2216 | * Function: uti596supplyFD |
---|
| 2217 | * |
---|
| 2218 | * Description: returns a buffer to the receive frame pool. |
---|
| 2219 | * call this with Inetrrupts disabled! |
---|
| 2220 | * |
---|
| 2221 | * Algorithm: |
---|
| 2222 | * |
---|
| 2223 | ***********************************************************************/ |
---|
| 2224 | |
---|
| 2225 | void uti596supplyFD( |
---|
| 2226 | i596_rfd * pRfd |
---|
| 2227 | ) |
---|
| 2228 | { |
---|
| 2229 | i596_rfd *pLastRfd; |
---|
| 2230 | |
---|
| 2231 | UTI_596_ASSERT(pRfd != I596_NULL, "Supplying NULL RFD!\n") |
---|
| 2232 | pRfd -> cmd = CMD_EOL; |
---|
| 2233 | pRfd -> pRbd = I596_NULL; |
---|
| 2234 | pRfd -> next = I596_NULL; |
---|
| 2235 | pRfd -> stat = 0x0000; /* clear STAT_C and STAT_B bits */ |
---|
| 2236 | |
---|
| 2237 | /* |
---|
| 2238 | * Check if the list is empty: |
---|
| 2239 | */ |
---|
| 2240 | if ( uti596_softc.pBeginRFA == I596_NULL ) { |
---|
| 2241 | /* Init a list w/ one entry */ |
---|
| 2242 | uti596_softc.pBeginRFA = uti596_softc.pEndRFA = pRfd; |
---|
| 2243 | UTI_596_ASSERT(uti596_softc.countRFD == 0, "Null begin, but non-zero count\n") |
---|
| 2244 | if ( uti596_softc.pLastUnkRFD != I596_NULL ) { |
---|
| 2245 | printk(("LastUnkRFD is NOT NULL!!\n")) |
---|
| 2246 | } |
---|
| 2247 | uti596_softc.countRFD = 1; |
---|
| 2248 | return; |
---|
| 2249 | } |
---|
| 2250 | /* |
---|
| 2251 | * Check if the last RFD is used/read by the 596. |
---|
| 2252 | */ |
---|
| 2253 | pLastRfd = uti596_softc.pEndRFA; |
---|
| 2254 | |
---|
| 2255 | if ( pLastRfd != I596_NULL && |
---|
| 2256 | ! (pLastRfd -> stat & ( STAT_C | STAT_B ) )) { /* C = complete, B = busy (prefetched) */ |
---|
| 2257 | |
---|
| 2258 | /* |
---|
| 2259 | * Not yet too late to add it |
---|
| 2260 | */ |
---|
| 2261 | pLastRfd -> next = (i596_rfd *) word_swap ((unsigned long)pRfd); |
---|
| 2262 | pLastRfd -> cmd &= ~CMD_EOL; /* RESET_EL : reset EL bit to 0 */ |
---|
| 2263 | uti596_softc.countRFD++; /* Lets assume we add it successfully |
---|
| 2264 | If not, the RFD may be used, and may decrement countRFD < 0 !!*/ |
---|
| 2265 | /* |
---|
| 2266 | * Check if the last RFD was used while appending. |
---|
| 2267 | */ |
---|
| 2268 | if ( pLastRfd -> stat & ( STAT_C | STAT_B ) ) { /* completed or was prefetched */ |
---|
| 2269 | /* |
---|
| 2270 | * Either the EL bit of the last rfd has been read by the 82596, |
---|
| 2271 | * and it will stop after reception,( true when RESET_EL not reached ) or |
---|
| 2272 | * the EL bit was NOT read by the 82596 and it will use the linked |
---|
| 2273 | * RFD for the next reception. ( true is RESET_EL was reached ) |
---|
| 2274 | * So, it is unknown whether or not the linked rfd will be used. |
---|
| 2275 | * Therefore, the end of list CANNOT be updated. |
---|
| 2276 | */ |
---|
| 2277 | UTI_596_ASSERT ( uti596_softc.pLastUnkRFD == I596_NULL, "Too many Unk RFD's\n" ) |
---|
| 2278 | uti596_softc.pLastUnkRFD = pRfd; |
---|
| 2279 | return; |
---|
| 2280 | } |
---|
| 2281 | else { |
---|
| 2282 | /* |
---|
| 2283 | * The RFD being added was not touched by the 82596 |
---|
| 2284 | */ |
---|
| 2285 | if (uti596_softc.pLastUnkRFD != I596_NULL ) { |
---|
| 2286 | |
---|
| 2287 | uti596append(&uti596_softc.pSavedRfdQueue, pRfd); /* Only here! saved Q */ |
---|
| 2288 | uti596_softc.pEndSavedQueue = pRfd; |
---|
| 2289 | uti596_softc.savedCount++; |
---|
| 2290 | uti596_softc.countRFD--; |
---|
| 2291 | |
---|
| 2292 | } |
---|
| 2293 | else { |
---|
| 2294 | uti596_softc.pEndRFA = pRfd; /* the RFA has been extended */ |
---|
| 2295 | if ( ( uti596_softc.scb.status & SCB_STAT_RNR || |
---|
| 2296 | uti596_softc.scb.status & RU_NO_RESOURCES ) && |
---|
| 2297 | uti596_softc.countRFD > 1 ) { |
---|
| 2298 | uti596_softc.pBeginRFA -> cmd &= ~CMD_EOL; /* Ensure that beginRFA is not EOL */ |
---|
| 2299 | |
---|
| 2300 | UTI_596_ASSERT(uti596_softc.pEndRFA -> next == I596_NULL, "supply: List buggered\n") |
---|
| 2301 | UTI_596_ASSERT(uti596_softc.pEndRFA -> cmd & CMD_EOL, "supply: No EOL at end.\n") |
---|
| 2302 | UTI_596_ASSERT(uti596_softc.scb.command == 0, "Supply: scb command must be zero\n") |
---|
| 2303 | #ifdef DBG_START |
---|
| 2304 | printk(("uti596supplyFD: starting receiver")) |
---|
| 2305 | #endif |
---|
| 2306 | /* start the receiver */ |
---|
| 2307 | UTI_596_ASSERT(uti596_softc.pBeginRFA != I596_NULL, "rx start w/ NULL begin! \n") |
---|
| 2308 | uti596_softc.scb.pRfd = uti596_softc.pBeginRFA; |
---|
| 2309 | uti596_softc.scb.Rfd_val = word_swap ((unsigned long) uti596_softc.pBeginRFA); |
---|
| 2310 | uti596_softc.scb.command = RX_START | SCB_STAT_RNR; /* Don't ack RNR! The receiver |
---|
| 2311 | * should be stopped in this case */ |
---|
| 2312 | UTI_596_ASSERT( !(uti596_softc.scb.status & SCB_STAT_FR),"FRAME RECEIVED INT COMING!\n") |
---|
| 2313 | i82596->chan_attn = 0x00000000; /* send CA signal */ |
---|
| 2314 | } |
---|
| 2315 | } |
---|
| 2316 | return; |
---|
| 2317 | |
---|
| 2318 | } |
---|
| 2319 | } |
---|
| 2320 | else { |
---|
| 2321 | /* |
---|
| 2322 | * too late , pLastRfd in use ( or NULL ), |
---|
| 2323 | * in either case, EL bit has been read, and RNR condition will occur |
---|
| 2324 | */ |
---|
| 2325 | uti596append( &uti596_softc.pSavedRfdQueue, pRfd); /* save it for RNR */ |
---|
| 2326 | |
---|
| 2327 | uti596_softc.pEndSavedQueue = pRfd; /* reset end of saved queue */ |
---|
| 2328 | uti596_softc.savedCount++; |
---|
| 2329 | |
---|
| 2330 | return; |
---|
| 2331 | } |
---|
| 2332 | } |
---|
| 2333 | |
---|
| 2334 | /*********************************************************************** |
---|
| 2335 | * Function: void uti596append |
---|
| 2336 | * |
---|
| 2337 | * Description: |
---|
| 2338 | * adds an RFD to the end of the received frame queue, |
---|
| 2339 | * for processing by the rxproc. |
---|
| 2340 | * Also removes this RFD from the RFA |
---|
| 2341 | * |
---|
| 2342 | * Algorithm: |
---|
| 2343 | * |
---|
| 2344 | ***********************************************************************/ |
---|
| 2345 | void uti596append( |
---|
| 2346 | i596_rfd ** ppQ, |
---|
| 2347 | i596_rfd * pRfd |
---|
| 2348 | ) |
---|
| 2349 | { |
---|
| 2350 | |
---|
| 2351 | i596_rfd *p; |
---|
| 2352 | |
---|
| 2353 | if ( pRfd != NULL && pRfd != I596_NULL) { |
---|
| 2354 | pRfd -> next = I596_NULL; |
---|
| 2355 | pRfd -> cmd |= CMD_EOL; /* set EL bit */ |
---|
| 2356 | |
---|
| 2357 | if ( *ppQ == NULL || *ppQ == I596_NULL ) { |
---|
| 2358 | /* empty list */ |
---|
| 2359 | *ppQ = pRfd; |
---|
| 2360 | } |
---|
| 2361 | else { |
---|
| 2362 | /* walk to the end of the list */ |
---|
| 2363 | for ( p=*ppQ; |
---|
| 2364 | p->next != I596_NULL; |
---|
| 2365 | p=(i596_rfd *) word_swap ((unsigned long)p->next) ); |
---|
| 2366 | |
---|
| 2367 | /* append the rfd */ |
---|
| 2368 | p->cmd &= ~CMD_EOL; /* Clear EL bit at end */ |
---|
| 2369 | p->next = (i596_rfd *) word_swap ((unsigned long)pRfd); |
---|
| 2370 | } |
---|
| 2371 | } |
---|
| 2372 | else { |
---|
| 2373 | printk(("Illegal attempt to append: %p\n", pRfd)) |
---|
| 2374 | } |
---|
| 2375 | } |
---|
| 2376 | |
---|
| 2377 | /*********************************************************************** |
---|
| 2378 | * Function: void printk_time |
---|
| 2379 | * |
---|
| 2380 | * Description: |
---|
| 2381 | ***********************************************************************/ |
---|
| 2382 | void printk_time( void ) |
---|
| 2383 | { |
---|
| 2384 | rtems_time_of_day tm_struct; |
---|
| 2385 | |
---|
| 2386 | rtems_clock_get(RTEMS_CLOCK_GET_TOD, &tm_struct); |
---|
| 2387 | printk(("Current time: %d:%d:%d \n", |
---|
| 2388 | tm_struct.hour, |
---|
| 2389 | tm_struct.minute, |
---|
| 2390 | tm_struct.second)) |
---|
| 2391 | } |
---|
| 2392 | |
---|
| 2393 | /*********************************************************************** |
---|
| 2394 | * Function: void dump_scb |
---|
| 2395 | * |
---|
| 2396 | * Description: |
---|
| 2397 | ***********************************************************************/ |
---|
| 2398 | void dump_scb( void ) |
---|
| 2399 | { |
---|
| 2400 | printk(("status 0x%x\n",uti596_softc.scb.status)) |
---|
| 2401 | printk(("command 0x%x\n",uti596_softc.scb.command)) |
---|
| 2402 | printk(("cmd 0x%x\n",(int)uti596_softc.scb.pCmd)) |
---|
| 2403 | printk(("rfd 0x%x\n",(int)uti596_softc.scb.pRfd)) |
---|
| 2404 | printk(("crc_err 0x%x\n",uti596_softc.scb.crc_err)) |
---|
| 2405 | printk(("align_err 0x%x\n",uti596_softc.scb.align_err)) |
---|
| 2406 | printk(("resource_err 0x%x\n",uti596_softc.scb.resource_err )) |
---|
| 2407 | printk(("over_err 0x%x\n",uti596_softc.scb.over_err)) |
---|
| 2408 | printk(("rcvdt_err 0x%x\n",uti596_softc.scb.rcvdt_err)) |
---|
| 2409 | printk(("short_err 0x%x\n",uti596_softc.scb.short_err)) |
---|
| 2410 | printk(("t_on 0x%x\n",uti596_softc.scb.t_on)) |
---|
| 2411 | printk(("t_off 0x%x\n",uti596_softc.scb.t_off)) |
---|
| 2412 | } |
---|
| 2413 | |
---|
| 2414 | |
---|
| 2415 | #ifdef DBG_INIT_3 |
---|
| 2416 | |
---|
| 2417 | /*********************************************************************** |
---|
| 2418 | ** |
---|
| 2419 | ** Debugging Functions |
---|
| 2420 | ** |
---|
| 2421 | ***********************************************************************/ |
---|
| 2422 | |
---|
| 2423 | |
---|
| 2424 | /*********************************************************************** |
---|
| 2425 | * Function: print_eth |
---|
| 2426 | * |
---|
| 2427 | * Description: |
---|
| 2428 | * Print the contents of an ethernet packet header |
---|
| 2429 | * CANNOT BE CALLED FROM ISR |
---|
| 2430 | * |
---|
| 2431 | * Algorithm: |
---|
| 2432 | * Print Destination, Src, and type of packet |
---|
| 2433 | * |
---|
| 2434 | ***********************************************************************/ |
---|
| 2435 | |
---|
| 2436 | /* static */ void print_eth( |
---|
| 2437 | unsigned char *add |
---|
| 2438 | ) |
---|
| 2439 | { |
---|
| 2440 | int i; |
---|
| 2441 | short int length; |
---|
| 2442 | |
---|
| 2443 | printk (("Packet Location %p\n", add)) |
---|
| 2444 | printk (("Dest ")) |
---|
| 2445 | |
---|
| 2446 | for (i = 0; i < 6; i++) { |
---|
| 2447 | printk ((" %2.2X", add[i])) |
---|
| 2448 | } |
---|
| 2449 | printk (("\n")) |
---|
| 2450 | printk (("Source")) |
---|
| 2451 | |
---|
| 2452 | for (i = 6; i < 12; i++) { |
---|
| 2453 | printk ((" %2.2X", add[i])) |
---|
| 2454 | } |
---|
| 2455 | |
---|
| 2456 | printk (("\n")) |
---|
| 2457 | printk (("frame type %2.2X%2.2X\n", add[12], add[13])) |
---|
| 2458 | |
---|
| 2459 | if ( add[12] == 0x08 && add[13] == 0x06 ) { |
---|
| 2460 | /* an ARP */ |
---|
| 2461 | printk (("Hardware type : %2.2X%2.2X\n", add[14],add[15])) |
---|
| 2462 | printk (("Protocol type : %2.2X%2.2X\n", add[16],add[17])) |
---|
| 2463 | printk (("Hardware size : %2.2X\n", add[18])) |
---|
| 2464 | printk (("Protocol size : %2.2X\n", add[19])) |
---|
| 2465 | printk (("op : %2.2X%2.2X\n", add[20],add[21])) |
---|
| 2466 | printk (("Sender Enet addr: ")) |
---|
| 2467 | |
---|
| 2468 | for ( i=0; i< 5 ; i++) { |
---|
| 2469 | printk (("%x:", add[22 + i])) |
---|
| 2470 | } |
---|
| 2471 | printk (("%x\n", add[27])) |
---|
| 2472 | printk (("Sender IP addr: ")) |
---|
| 2473 | |
---|
| 2474 | for ( i=0; i< 3 ; i++) { |
---|
| 2475 | printk (("%u.", add[28 + i])) |
---|
| 2476 | } |
---|
| 2477 | printk (("%u\n", add[31])) |
---|
| 2478 | printk (("Target Enet addr: ")) |
---|
| 2479 | |
---|
| 2480 | for ( i=0; i< 5 ; i++) { |
---|
| 2481 | printk (( "%x:", add[32 + i])) |
---|
| 2482 | } |
---|
| 2483 | printk (("%x\n", add[37])) |
---|
| 2484 | printk (("Target IP addr: ")) |
---|
| 2485 | |
---|
| 2486 | for ( i=0; i< 3 ; i++) { |
---|
| 2487 | printk (( "%u.", add[38 + i])) |
---|
| 2488 | } |
---|
| 2489 | printk (("%u\n", add[41])) |
---|
| 2490 | } |
---|
| 2491 | |
---|
| 2492 | if ( add[12] == 0x08 && add[13] == 0x00 ) { /* an IP packet */ |
---|
| 2493 | printk (("*********************IP HEADER******************\n")) |
---|
| 2494 | printk (("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15])) |
---|
| 2495 | printk (("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] ))) |
---|
| 2496 | printk (("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", |
---|
| 2497 | add[18],add[19], add[20], add[21])) |
---|
| 2498 | printk (("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", |
---|
| 2499 | add[22],add[23],add[24],add[25])) |
---|
| 2500 | printk (("IP packet type: %2.2X code %2.2X\n", add[34],add[35])) |
---|
| 2501 | printk (("Source IP address: ")) |
---|
| 2502 | |
---|
| 2503 | for ( i=0; i< 3 ; i++) { |
---|
| 2504 | printk (("%u.", add[26 + i])) |
---|
| 2505 | } |
---|
| 2506 | printk (("%u\n", add[29])) |
---|
| 2507 | printk (("Destination IP address: ")) |
---|
| 2508 | |
---|
| 2509 | for ( i=0; i< 3 ; i++) { |
---|
| 2510 | printk (("%u.", add[30 + i])) |
---|
| 2511 | } |
---|
| 2512 | printk (("%u\n", add[33])) |
---|
| 2513 | /* printk(("********************IP Packet Data*******************\n")) |
---|
| 2514 | length -=20; |
---|
| 2515 | for ( i=0; i < length ; i++) { |
---|
| 2516 | printk(("0x%2.2x ", add[34+i])) |
---|
| 2517 | } |
---|
| 2518 | printk(("\n")) |
---|
| 2519 | |
---|
| 2520 | printk(("ICMP checksum: %2.2x %2.2x\n", add[36], add[37])) |
---|
| 2521 | printk(("ICMP identifier: %2.2x %2.2x\n", add[38], add[39])) |
---|
| 2522 | printk(("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41])) |
---|
| 2523 | */ |
---|
| 2524 | } |
---|
| 2525 | } |
---|
| 2526 | |
---|
| 2527 | /*********************************************************************** |
---|
| 2528 | * Function: print_hdr |
---|
| 2529 | * |
---|
| 2530 | * Description: |
---|
| 2531 | * Print the contents of an ethernet packet header |
---|
| 2532 | * CANNOT BE CALLED FROM ISR |
---|
| 2533 | * |
---|
| 2534 | * Algorithm: |
---|
| 2535 | * Print Destination, Src, and type of packet |
---|
| 2536 | * |
---|
| 2537 | ***********************************************************************/ |
---|
| 2538 | |
---|
| 2539 | /* static */ void print_hdr( |
---|
| 2540 | unsigned char *add |
---|
| 2541 | ) |
---|
| 2542 | { |
---|
| 2543 | int i; |
---|
| 2544 | |
---|
| 2545 | printk (("print_hdr: begins\n")) |
---|
| 2546 | printk (("Header Location %p\n", add)) |
---|
| 2547 | printk (("Dest ")) |
---|
| 2548 | |
---|
| 2549 | for (i = 0; i < 6; i++) { |
---|
| 2550 | printk ((" %2.2X", add[i])) |
---|
| 2551 | } |
---|
| 2552 | printk (("\nSource")) |
---|
| 2553 | |
---|
| 2554 | for (i = 6; i < 12; i++) { |
---|
| 2555 | printk ((" %2.2X", add[i])) |
---|
| 2556 | } |
---|
| 2557 | printk (("\nframe type %2.2X%2.2X\n", add[12], add[13])) |
---|
| 2558 | printk (("print_hdr: completed")) |
---|
| 2559 | } |
---|
| 2560 | |
---|
| 2561 | /*********************************************************************** |
---|
| 2562 | * Function: print_pkt |
---|
| 2563 | * |
---|
| 2564 | * Description: |
---|
| 2565 | * Print the contents of an ethernet packet header |
---|
| 2566 | * CANNOT BE CALLED FROM ISR |
---|
| 2567 | * |
---|
| 2568 | * Algorithm: |
---|
| 2569 | * Print Destination, Src, and type of packet |
---|
| 2570 | * |
---|
| 2571 | ***********************************************************************/ |
---|
| 2572 | |
---|
| 2573 | /* static */ void print_pkt( |
---|
| 2574 | unsigned char *add |
---|
| 2575 | ) |
---|
| 2576 | { |
---|
| 2577 | int i; |
---|
| 2578 | short int length; |
---|
| 2579 | |
---|
| 2580 | printk (("print_pkt: begins")) |
---|
| 2581 | printk (("Data Location %p\n", add)) |
---|
| 2582 | |
---|
| 2583 | if ( add[0] == 0x08 && add[1] == 0x06 ) { |
---|
| 2584 | /* an ARP */ |
---|
| 2585 | printk (("Hardware type : %2.2X%2.2X\n", add[14],add[15])) |
---|
| 2586 | printk (("Protocol type : %2.2X%2.2X\n", add[16],add[17])) |
---|
| 2587 | printk (("Hardware size : %2.2X\n", add[18])) |
---|
| 2588 | printk (("Protocol size : %2.2X\n", add[19])) |
---|
| 2589 | printk (("op : %2.2X%2.2X\n", add[20],add[21])) |
---|
| 2590 | printk (("Sender Enet addr: ")) |
---|
| 2591 | |
---|
| 2592 | for ( i=0; i< 5 ; i++) { |
---|
| 2593 | printk (( "%x:", add[22 + i])) |
---|
| 2594 | } |
---|
| 2595 | printk (("%x\n", add[27])) |
---|
| 2596 | printk (("Sender IP addr: ")) |
---|
| 2597 | |
---|
| 2598 | for ( i=0; i< 3 ; i++) { |
---|
| 2599 | printk (("%u.", add[28 + i])) |
---|
| 2600 | } |
---|
| 2601 | printk (("%u\n", add[31])) |
---|
| 2602 | printk (("Target Enet addr: ")) |
---|
| 2603 | |
---|
| 2604 | for ( i=0; i< 5 ; i++) { |
---|
| 2605 | printk (( "%x:", add[32 + i])) |
---|
| 2606 | } |
---|
| 2607 | printk (("%x\n", add[37])) |
---|
| 2608 | printk (("Target IP addr: ")) |
---|
| 2609 | |
---|
| 2610 | for ( i=0; i< 3 ; i++) { |
---|
| 2611 | printk (( "%u.", add[38 + i])) |
---|
| 2612 | } |
---|
| 2613 | printk (("%u\n", add[41])) |
---|
| 2614 | } |
---|
| 2615 | |
---|
| 2616 | if ( add[0] == 0x08 && add[1] == 0x00 ) { |
---|
| 2617 | /* an IP packet */ |
---|
| 2618 | printk (("*********************IP HEADER******************\n")) |
---|
| 2619 | printk (("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15])) |
---|
| 2620 | printk (("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] ))) |
---|
| 2621 | printk (("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", |
---|
| 2622 | add[18],add[19], add[20], add[21])) |
---|
| 2623 | printk (("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", |
---|
| 2624 | add[22],add[23],add[24],add[25])) |
---|
| 2625 | printk (("IP packet type: %2.2X code %2.2X\n", add[34],add[35])) |
---|
| 2626 | printk (("Source IP address: ")) |
---|
| 2627 | |
---|
| 2628 | for ( i=0; i< 3 ; i++) { |
---|
| 2629 | printk(( "%u.", add[26 + i])) |
---|
| 2630 | } |
---|
| 2631 | printk(("%u\n", add[29])) |
---|
| 2632 | printk(("Destination IP address: ")) |
---|
| 2633 | |
---|
| 2634 | for ( i=0; i< 3 ; i++) { |
---|
| 2635 | printk(( "%u.", add[30 + i])) |
---|
| 2636 | } |
---|
| 2637 | printk(("%u\n", add[33])) |
---|
| 2638 | printk(("********************IP Packet Data*******************\n")) |
---|
| 2639 | length -=20; |
---|
| 2640 | |
---|
| 2641 | for ( i=0; i < length ; i++) { |
---|
| 2642 | printk(("0x%2.2x ", add[34+i])) |
---|
| 2643 | } |
---|
| 2644 | printk(("\n")) |
---|
| 2645 | printk(("ICMP checksum: %2.2x %2.2x\n", add[36], add[37])) |
---|
| 2646 | printk(("ICMP identifier: %2.2x %2.2x\n", add[38], add[39])) |
---|
| 2647 | printk(("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41])) |
---|
| 2648 | printk(("print_pkt: completed")) |
---|
| 2649 | } |
---|
| 2650 | } |
---|
| 2651 | |
---|
| 2652 | /*********************************************************************** |
---|
| 2653 | * Function: print_echo |
---|
| 2654 | * |
---|
| 2655 | * Description: |
---|
| 2656 | * Print the contents of an ethernet packet header |
---|
| 2657 | * CANNOT BE CALLED FROM ISR |
---|
| 2658 | * |
---|
| 2659 | * Algorithm: |
---|
| 2660 | * Prints only echo packets |
---|
| 2661 | * |
---|
| 2662 | ***********************************************************************/ |
---|
| 2663 | |
---|
| 2664 | /* static */ void print_echo( |
---|
| 2665 | unsigned char *add |
---|
| 2666 | ) |
---|
| 2667 | { |
---|
| 2668 | int i; |
---|
| 2669 | short int length; |
---|
| 2670 | |
---|
| 2671 | printk (("print_echo: begins")) |
---|
| 2672 | |
---|
| 2673 | if ( add[12] == 0x08 && add[13] == 0x00 ) { |
---|
| 2674 | /* an IP packet */ |
---|
| 2675 | printk (("Packet Location %p\n", add)) |
---|
| 2676 | printk (("Dest ")) |
---|
| 2677 | |
---|
| 2678 | for (i = 0; i < 6; i++) { |
---|
| 2679 | printk ((" %2.2X", add[i])) |
---|
| 2680 | } |
---|
| 2681 | printk (("\n")) |
---|
| 2682 | printk (("Source")) |
---|
| 2683 | |
---|
| 2684 | for (i = 6; i < 12; i++) { |
---|
| 2685 | printk ((" %2.2X", add[i])) |
---|
| 2686 | } |
---|
| 2687 | printk (("\n")) |
---|
| 2688 | printk (("frame type %2.2X%2.2X\n", add[12], add[13])) |
---|
| 2689 | |
---|
| 2690 | printk (("*********************IP HEADER******************\n")) |
---|
| 2691 | printk (("IP version/IPhdr length: %2.2X TOS: %2.2X\n", add[14] , add[15])) |
---|
| 2692 | printk (("IP total length: %2.2X %2.2X, decimal %d\n", add[16], add[17], length = (add[16]<<8 | add[17] ))) |
---|
| 2693 | printk (("IP identification: %2.2X %2.2X, 3-bit flags and offset %2.2X %2.2X\n", |
---|
| 2694 | add[18],add[19], add[20], add[21])) |
---|
| 2695 | printk (("IP TTL: %2.2X, protocol: %2.2X, checksum: %2.2X %2.2X \n", |
---|
| 2696 | add[22],add[23],add[24],add[25])) |
---|
| 2697 | printk (("IP packet type: %2.2X code %2.2X\n", add[34],add[35])) |
---|
| 2698 | printk (("Source IP address: ")) |
---|
| 2699 | |
---|
| 2700 | for ( i=0; i< 3 ; i++) { |
---|
| 2701 | printk (("%u.", add[26 + i])) |
---|
| 2702 | } |
---|
| 2703 | printk (("%u\n", add[29])) |
---|
| 2704 | printk (("Destination IP address: ")) |
---|
| 2705 | |
---|
| 2706 | for ( i=0; i< 3 ; i++) { |
---|
| 2707 | printk (("%u.", add[30 + i])) |
---|
| 2708 | } |
---|
| 2709 | printk (("%u\n", add[33])) |
---|
| 2710 | printk(("********************IP Packet Data*******************\n")) |
---|
| 2711 | length -=20; |
---|
| 2712 | |
---|
| 2713 | for ( i=0; i < length ; i++) { |
---|
| 2714 | printk(("0x%2.2x ", add[34+i])) |
---|
| 2715 | } |
---|
| 2716 | printk(("\n")) |
---|
| 2717 | printk(("ICMP checksum: %2.2x %2.2x\n", add[36], add[37])) |
---|
| 2718 | printk(("ICMP identifier: %2.2x %2.2x\n", add[38], add[39])) |
---|
| 2719 | printk(("ICMP sequence nbr: %2.2x %2.2x\n", add[40], add[41])) |
---|
| 2720 | printk(("print_echo: completed")) |
---|
| 2721 | } |
---|
| 2722 | } |
---|
| 2723 | |
---|
| 2724 | #endif |
---|
| 2725 | |
---|
| 2726 | /*********************************************************************** |
---|
| 2727 | * Function: uti596dump |
---|
| 2728 | * |
---|
| 2729 | * Description: Dump 596 registers |
---|
| 2730 | * |
---|
| 2731 | * Algorithm: |
---|
| 2732 | ***********************************************************************/ |
---|
| 2733 | /* static */ int uti596dump( |
---|
| 2734 | char * pDumpArea |
---|
| 2735 | ) |
---|
| 2736 | { |
---|
| 2737 | i596_dump dumpCmd; |
---|
| 2738 | int boguscnt = 25000000; /* over a second! */ |
---|
| 2739 | |
---|
| 2740 | #ifdef DBG_596 |
---|
| 2741 | printk(("uti596dump: begin\n")) |
---|
| 2742 | #endif |
---|
| 2743 | |
---|
| 2744 | dumpCmd.cmd.command = CmdDump; |
---|
| 2745 | dumpCmd.cmd.next = I596_NULL; |
---|
| 2746 | dumpCmd.pData = pDumpArea; |
---|
| 2747 | uti596_softc.cmdOk = 0; |
---|
| 2748 | uti596addCmd ( (i596_cmd *)&dumpCmd); |
---|
| 2749 | while (1) { |
---|
| 2750 | if ( --boguscnt == 0) { |
---|
| 2751 | printk(("Dump command was not processed within spin loop delay\n")) |
---|
| 2752 | return 0; |
---|
| 2753 | } |
---|
| 2754 | else { |
---|
| 2755 | if ( uti596_softc.cmdOk ) { |
---|
| 2756 | return 1; /* successful completion */ |
---|
| 2757 | } |
---|
| 2758 | } |
---|
| 2759 | } |
---|
| 2760 | } |
---|
| 2761 | |
---|
| 2762 | /*********************************************************************** |
---|
| 2763 | * Function: void dumpQ |
---|
| 2764 | * |
---|
| 2765 | * Description: |
---|
| 2766 | ***********************************************************************/ |
---|
| 2767 | void dumpQ( void ) |
---|
| 2768 | { |
---|
| 2769 | i596_rfd *pRfd; |
---|
| 2770 | |
---|
| 2771 | printk(("savedQ:\n")) |
---|
| 2772 | |
---|
| 2773 | for( pRfd = uti596_softc.pSavedRfdQueue; |
---|
| 2774 | pRfd != I596_NULL; |
---|
| 2775 | pRfd = pRfd -> next) { |
---|
| 2776 | printk(("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd)) |
---|
| 2777 | } |
---|
| 2778 | |
---|
| 2779 | printk(("Inbound:\n")) |
---|
| 2780 | |
---|
| 2781 | for( pRfd = uti596_softc.pInboundFrameQueue; |
---|
| 2782 | pRfd != I596_NULL; |
---|
| 2783 | pRfd = pRfd -> next) { |
---|
| 2784 | printk(("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd)) |
---|
| 2785 | } |
---|
| 2786 | |
---|
| 2787 | printk(("Last Unk: %p\n", uti596_softc.pLastUnkRFD )) |
---|
| 2788 | printk(("RFA:\n")) |
---|
| 2789 | |
---|
| 2790 | for( pRfd = uti596_softc.pBeginRFA; |
---|
| 2791 | pRfd != I596_NULL; |
---|
| 2792 | pRfd = pRfd -> next) { |
---|
| 2793 | printk(("pRfd: %p, stat: 0x%x cmd: 0x%x\n",pRfd,pRfd -> stat,pRfd -> cmd)) |
---|
| 2794 | } |
---|
| 2795 | } |
---|
| 2796 | |
---|
| 2797 | |
---|
| 2798 | /*********************************************************************** |
---|
| 2799 | * Function: void show_buffers |
---|
| 2800 | * |
---|
| 2801 | * Description: |
---|
| 2802 | ***********************************************************************/ |
---|
| 2803 | void show_buffers (void) |
---|
| 2804 | { |
---|
| 2805 | i596_rfd *pRfd; |
---|
| 2806 | |
---|
| 2807 | printk(("82596 cmd: 0x%x, status: 0x%x RFA len: %d\n", |
---|
| 2808 | uti596_softc.scb.command, |
---|
| 2809 | uti596_softc.scb.status, |
---|
| 2810 | uti596_softc.countRFD)) |
---|
| 2811 | |
---|
| 2812 | printk(("\nRFA: \n")) |
---|
| 2813 | |
---|
| 2814 | for ( pRfd = uti596_softc.pBeginRFA; |
---|
| 2815 | pRfd != I596_NULL; |
---|
| 2816 | pRfd = pRfd->next) { |
---|
| 2817 | printk(("Frame @ %p, status: %2.2x, cmd: %2.2x\n", |
---|
| 2818 | pRfd, pRfd->stat, pRfd->cmd)) |
---|
| 2819 | } |
---|
| 2820 | printk(("\nInbound: \n")) |
---|
| 2821 | |
---|
| 2822 | for ( pRfd = uti596_softc.pInboundFrameQueue; |
---|
| 2823 | pRfd != I596_NULL; |
---|
| 2824 | pRfd = pRfd->next) { |
---|
| 2825 | printk(("Frame @ %p, status: %2.2x, cmd: %2.2x\n", |
---|
| 2826 | pRfd, pRfd->stat, pRfd->cmd)) |
---|
| 2827 | } |
---|
| 2828 | |
---|
| 2829 | printk(("\nSaved: \n")) |
---|
| 2830 | |
---|
| 2831 | for ( pRfd = uti596_softc.pSavedRfdQueue; |
---|
| 2832 | pRfd != I596_NULL; |
---|
| 2833 | pRfd = pRfd->next) { |
---|
| 2834 | printk(("Frame @ %p, status: %2.2x, cmd: %2.2x\n", |
---|
| 2835 | pRfd, pRfd->stat, pRfd->cmd)) |
---|
| 2836 | } |
---|
| 2837 | |
---|
| 2838 | printk(("\nUnknown: %p\n",uti596_softc.pLastUnkRFD)) |
---|
| 2839 | } |
---|
| 2840 | |
---|
| 2841 | /*********************************************************************** |
---|
| 2842 | * Function: void show_queues |
---|
| 2843 | * |
---|
| 2844 | * Description: |
---|
| 2845 | ***********************************************************************/ |
---|
| 2846 | void show_queues(void) |
---|
| 2847 | { |
---|
| 2848 | i596_rfd *pRfd; |
---|
| 2849 | |
---|
| 2850 | printk(("CMD: 0x%x, Status: 0x%x\n", |
---|
| 2851 | uti596_softc.scb.command, |
---|
| 2852 | uti596_softc.scb.status)) |
---|
| 2853 | printk(("saved Q\n")) |
---|
| 2854 | |
---|
| 2855 | for ( pRfd = uti596_softc.pSavedRfdQueue; |
---|
| 2856 | pRfd != I596_NULL && |
---|
| 2857 | pRfd != NULL; |
---|
| 2858 | pRfd = pRfd->next) { |
---|
| 2859 | printk(("0x%p\n", pRfd)) |
---|
| 2860 | } |
---|
| 2861 | |
---|
| 2862 | printk(("End saved Q 0x%p\n", uti596_softc.pEndSavedQueue)) |
---|
| 2863 | |
---|
| 2864 | printk(("\nRFA:\n")) |
---|
| 2865 | |
---|
| 2866 | for ( pRfd = uti596_softc.pBeginRFA; |
---|
| 2867 | pRfd != I596_NULL && |
---|
| 2868 | pRfd != NULL; |
---|
| 2869 | pRfd = pRfd->next) { |
---|
| 2870 | printk(("0x%p\n", pRfd)) |
---|
| 2871 | } |
---|
| 2872 | |
---|
| 2873 | printk(("uti596_softc.pEndRFA: %p\n",uti596_softc.pEndRFA)) |
---|
| 2874 | } |
---|
| 2875 | |
---|
| 2876 | /*********************************************************************** |
---|
| 2877 | * Function: word_swap |
---|
| 2878 | * |
---|
| 2879 | * Description: |
---|
| 2880 | * Return a 32 bit value, swapping the upper |
---|
| 2881 | * and lower words first. |
---|
| 2882 | * |
---|
| 2883 | ***********************************************************************/ |
---|
| 2884 | unsigned long word_swap (unsigned long val) |
---|
| 2885 | { |
---|
| 2886 | return (((val >> 16)&(0x0000ffff)) | ((val << 16)&(0xffff0000))); |
---|
| 2887 | } |
---|
| 2888 | |
---|
| 2889 | |
---|