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kernel/linux-rt-4.4.41/drivers/s390/cio/qdio_debug.h 2.12 KB
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  /*
   *  Copyright IBM Corp. 2008
   *
   *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
   */
  #ifndef QDIO_DEBUG_H
  #define QDIO_DEBUG_H
  
  #include <asm/debug.h>
  #include <asm/qdio.h>
  #include "qdio.h"
  
  /* that gives us 15 characters in the text event views */
  #define QDIO_DBF_LEN	16
  
  extern debug_info_t *qdio_dbf_setup;
  extern debug_info_t *qdio_dbf_error;
  
  #define DBF_ERR		3	/* error conditions	*/
  #define DBF_WARN	4	/* warning conditions	*/
  #define DBF_INFO	6	/* informational	*/
  
  #undef DBF_EVENT
  #undef DBF_ERROR
  #undef DBF_DEV_EVENT
  
  #define DBF_EVENT(text...) \
  	do { \
  		char debug_buffer[QDIO_DBF_LEN]; \
  		snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  		debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \
  	} while (0)
  
  static inline void DBF_HEX(void *addr, int len)
  {
  	while (len > 0) {
  		debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
  		len -= qdio_dbf_setup->buf_size;
  		addr += qdio_dbf_setup->buf_size;
  	}
  }
  
  #define DBF_ERROR(text...) \
  	do { \
  		char debug_buffer[QDIO_DBF_LEN]; \
  		snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  		debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \
  	} while (0)
  
  static inline void DBF_ERROR_HEX(void *addr, int len)
  {
  	while (len > 0) {
  		debug_event(qdio_dbf_error, DBF_ERR, addr, len);
  		len -= qdio_dbf_error->buf_size;
  		addr += qdio_dbf_error->buf_size;
  	}
  }
  
  #define DBF_DEV_EVENT(level, device, text...) \
  	do { \
  		char debug_buffer[QDIO_DBF_LEN]; \
  		if (debug_level_enabled(device->debug_area, level)) { \
  			snprintf(debug_buffer, QDIO_DBF_LEN, text); \
  			debug_text_event(device->debug_area, level, debug_buffer); \
  		} \
  	} while (0)
  
  static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
  			       int len, int level)
  {
  	while (len > 0) {
  		debug_event(dev->debug_area, level, addr, len);
  		len -= dev->debug_area->buf_size;
  		addr += dev->debug_area->buf_size;
  	}
  }
  
  int qdio_allocate_dbf(struct qdio_initialize *init_data,
  		       struct qdio_irq *irq_ptr);
  void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
  			      struct ccw_device *cdev);
  void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr);
  int qdio_debug_init(void);
  void qdio_debug_exit(void);
  
  #endif