drivers/s390/cio/qdio_perf.h

   1 /*
   2  *  drivers/s390/cio/qdio_perf.h
   3  *
   4  *  Copyright IBM Corp. 2008
   5  *
   6  *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
   7  */
   8 #ifndef QDIO_PERF_H
   9 #define QDIO_PERF_H
  10
  11 #include <linux/types.h>
  12 #include <linux/device.h>
  13 #include <asm/atomic.h>
  14
  15 struct qdio_perf_stats {
  16         /* interrupt handler calls */
  17         atomic_long_t qdio_int;
  18         atomic_long_t pci_int;
  19         atomic_long_t thin_int;
  20
  21         /* tasklet runs */
  22         atomic_long_t tasklet_inbound;
  23         atomic_long_t tasklet_outbound;
  24         atomic_long_t tasklet_thinint;
  25         atomic_long_t tasklet_thinint_loop;
  26         atomic_long_t thinint_inbound;
  27         atomic_long_t thinint_inbound_loop;
  28         atomic_long_t thinint_inbound_loop2;
  29
  30         /* signal adapter calls */
  31         atomic_long_t siga_out;
  32         atomic_long_t siga_in;
  33         atomic_long_t siga_sync;
  34
  35         /* misc */
  36         atomic_long_t inbound_handler;
  37         atomic_long_t outbound_handler;
  38         atomic_long_t fast_requeue;
  39
  40         /* for debugging */
  41         atomic_long_t debug_tl_out_timer;
  42         atomic_long_t debug_stop_polling;
  43 };
  44
  45 extern struct qdio_perf_stats perf_stats;
  46 extern int qdio_performance_stats;
  47
  48 int qdio_setup_perf_stats(void);
  49 void qdio_remove_perf_stats(void);
  50
  51 extern void qdio_perf_stat_inc(atomic_long_t *count);
  52 extern void qdio_perf_stat_dec(atomic_long_t *count);
  53
  54 #endif