arch/s390/include/asm/isc.h

   1 #ifndef _ASM_S390_ISC_H
   2 #define _ASM_S390_ISC_H
   3
   4 #include <linux/types.h>
   5
   6 /*
   7  * I/O interruption subclasses used by drivers.
   8  * Please add all used iscs here so that it is possible to distribute
   9  * isc usage between drivers.
  10  * Reminder: 0 is highest priority, 7 lowest.
  11  */
  12 #define MAX_ISC 7
  13
  14 /* Regular I/O interrupts. */
  15 #define IO_SCH_ISC 3                    /* regular I/O subchannels */
  16 #define CONSOLE_ISC 1                   /* console I/O subchannel */
  17 #define CHSC_SCH_ISC 7                  /* CHSC subchannels */
  18 /* Adapter interrupts. */
  19 #define QDIO_AIRQ_ISC IO_SCH_ISC        /* I/O subchannel in qdio mode */
  20
  21 /* Functions for registration of I/O interruption subclasses */
  22 void isc_register(unsigned int isc);
  23 void isc_unregister(unsigned int isc);
  24
  25 #endif /* _ASM_S390_ISC_H */