drivers/s390/cio/qdio_debug.h

   1 /*
   2  *  Copyright IBM Corp. 2008
   3  *
   4  *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
   5  */
   6 #ifndef QDIO_DEBUG_H
   7 #define QDIO_DEBUG_H
   8
   9 #include <asm/debug.h>
  10 #include <asm/qdio.h>
  11 #include "qdio.h"
  12
  13 /* that gives us 15 characters in the text event views */
  14 #define QDIO_DBF_LEN    16
  15
  16 extern debug_info_t *qdio_dbf_setup;
  17 extern debug_info_t *qdio_dbf_error;
  18
  19 #define DBF_ERR         3       /* error conditions     */
  20 #define DBF_WARN        4       /* warning conditions   */
  21 #define DBF_INFO        6       /* informational        */
  22
  23 #undef DBF_EVENT
  24 #undef DBF_ERROR
  25 #undef DBF_DEV_EVENT
  26
  27 #define DBF_EVENT(text...) \
  28         do { \
  29                 char debug_buffer[QDIO_DBF_LEN]; \
  30                 snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  31                 debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \
  32         } while (0)
  33
  34 static inline void DBF_HEX(void *addr, int len)
  35 {
  36         while (len > 0) {
  37                 debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
  38                 len -= qdio_dbf_setup->buf_size;
  39                 addr += qdio_dbf_setup->buf_size;
  40         }
  41 }
  42
  43 #define DBF_ERROR(text...) \
  44         do { \
  45                 char debug_buffer[QDIO_DBF_LEN]; \
  46                 snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  47                 debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \
  48         } while (0)
  49
  50 static inline void DBF_ERROR_HEX(void *addr, int len)
  51 {
  52         while (len > 0) {
  53                 debug_event(qdio_dbf_error, DBF_ERR, addr, len);
  54                 len -= qdio_dbf_error->buf_size;
  55                 addr += qdio_dbf_error->buf_size;
  56         }
  57 }
  58
  59 #define DBF_DEV_EVENT(level, device, text...) \
  60         do { \
  61                 char debug_buffer[QDIO_DBF_LEN]; \
  62                 if (debug_level_enabled(device->debug_area, level)) { \
  63                         snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  64                         debug_text_event(device->debug_area, level, debug_buffer); \
  65                 } \
  66         } while (0)
  67
  68 static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
  69                                int len, int level)
  70 {
  71         while (len > 0) {
  72                 debug_event(dev->debug_area, level, addr, len);
  73                 len -= dev->debug_area->buf_size;
  74                 addr += dev->debug_area->buf_size;
  75         }
  76 }
  77
  78 int qdio_allocate_dbf(struct qdio_initialize *init_data,
  79                        struct qdio_irq *irq_ptr);
  80 void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
  81                               struct ccw_device *cdev);
  82 void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr);
  83 int qdio_debug_init(void);
  84 void qdio_debug_exit(void);
  85
  86 #endif