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Annotation of 42BSD/sys/net/netisr.h, revision 1.1.1.1

1.1       root        1: /*     netisr.h        6.1     83/07/29        */
                      2: 
                      3: /*
                      4:  * The networking code runs off software interrupts.
                      5:  *
                      6:  * You can switch into the network by doing splnet() and return by splx().
                      7:  * The software interrupt level for the network is higher than the software
                      8:  * level for the clock (so you can enter the network in routines called
                      9:  * at timeout time).
                     10:  */
                     11: #ifdef vax
                     12: #define        setsoftnet()    mtpr(SIRR, 12)
                     13: #endif
                     14: 
                     15: /*
                     16:  * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
                     17:  * word which is used to de-multiplex a single software
                     18:  * interrupt used for scheduling the network code to calls
                     19:  * on the lowest level routine of each protocol.
                     20:  */
                     21: #define        NETISR_RAW      0               /* same as AF_UNSPEC */
                     22: #define        NETISR_IP       2               /* same as AF_INET */
                     23: #define        NETISR_NS       6               /* same as AF_NS */
                     24: #define        NETISR_ND       7               /* network disk protocol */
                     25: 
                     26: #define        schednetisr(anisr)      { netisr |= 1<<(anisr); setsoftnet(); }
                     27: 
                     28: #ifndef LOCORE
                     29: #ifdef KERNEL
                     30: int    netisr;                         /* scheduling bits for network */
                     31: #endif
                     32: #endif

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