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Annotation of researchv10dc/lsys/sys/ni1010a.h, revision 1.1.1.1

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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