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Annotation of researchv10dc/lsys/sys/ni1010a.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Interlan NI1010A Ethernet controller
        !             3:  */
        !             4: 
        !             5: /*
        !             6:  * one struct ilchan per minor device;
        !             7:  * eight of these per controller,
        !             8:  * embedded in struct il
        !             9:  */
        !            10: 
        !            11: #define        NILCHAN 8
        !            12: 
        !            13: struct ilchan {
        !            14:        char unit;
        !            15:        char ndelims;   /* number of packets waiting */
        !            16:        short type;     /* ethernet protocol # */
        !            17:        struct queue *rq;
        !            18:        struct block *xcur;     /* block now being sent */
        !            19:        struct block *xlast;    /* last data block put */
        !            20: };
        !            21: 
        !            22: /*
        !            23:  * one struct il per controller
        !            24:  */
        !            25: 
        !            26: struct il {
        !            27:        char flags;
        !            28:        char ubno;
        !            29:        short rbytes;           /* buffer space now outstanding */
        !            30:        short rbufs;            /* number of buffers outstanding */
        !            31:        short lastcsr;          /* il_csr at last interrupt */
        !            32:        int ipackets, opackets;
        !            33:        int ierrors, oerrors;
        !            34:        int collisions;
        !            35:        int ilost;
        !            36:        struct ildevice *addr;
        !            37:        struct block *rfirst, *rlast;   /* receive buffer */
        !            38:        struct block *rnext;            /* where next block goes */
        !            39:        short rcur;                     /* bytes left in current packet */
        !            40:        char lastch;                    /* current transmit channel */
        !            41:        unsigned char enaddr[6];        /* my ethernet address */
        !            42:        struct ilchan chan[NILCHAN];
        !            43: };

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