1/* 2 * drivers/s390/cio/qdio_debug.h 3 * 4 * Copyright IBM Corp. 2008 5 * 6 * Author: Jan Glauber (jang@linux.vnet.ibm.com) 7 */ 8#ifndef QDIO_DEBUG_H 9#define QDIO_DEBUG_H 10 11#include <asm/debug.h> 12#include <asm/qdio.h> 13#include "qdio.h" 14 15/* that gives us 15 characters in the text event views */ 16#define QDIO_DBF_LEN 16 17 18extern debug_info_t *qdio_dbf_setup; 19extern debug_info_t *qdio_dbf_error; 20 21/* sort out low debug levels early to avoid wasted sprints */ 22static inline int qdio_dbf_passes(debug_info_t *dbf_grp, int level) 23{ 24 return (level <= dbf_grp->level); 25} 26 27#define DBF_ERR 3 /* error conditions */ 28#define DBF_WARN 4 /* warning conditions */ 29#define DBF_INFO 6 /* informational */ 30 31#undef DBF_EVENT 32#undef DBF_ERROR 33#undef DBF_DEV_EVENT 34 35#define DBF_EVENT(text...) \ 36 do { \ 37 char debug_buffer[QDIO_DBF_LEN]; \ 38 snprintf(debug_buffer, QDIO_DBF_LEN, text); \ 39 debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \ 40 } while (0) 41 42#define DBF_HEX(addr, len) \ 43 do { \ 44 debug_event(qdio_dbf_setup, DBF_ERR, (void*)(addr), len); \ 45 } while (0) 46 47#define DBF_ERROR(text...) \ 48 do { \ 49 char debug_buffer[QDIO_DBF_LEN]; \ 50 snprintf(debug_buffer, QDIO_DBF_LEN, text); \ 51 debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \ 52 } while (0) 53 54#define DBF_ERROR_HEX(addr, len) \ 55 do { \ 56 debug_event(qdio_dbf_error, DBF_ERR, (void*)(addr), len); \ 57 } while (0) 58 59 60#define DBF_DEV_EVENT(level, device, text...) \ 61 do { \ 62 char debug_buffer[QDIO_DBF_LEN]; \ 63 if (qdio_dbf_passes(device->debug_area, level)) { \ 64 snprintf(debug_buffer, QDIO_DBF_LEN, text); \ 65 debug_text_event(device->debug_area, level, debug_buffer); \ 66 } \ 67 } while (0) 68 69#define DBF_DEV_HEX(level, device, addr, len) \ 70 do { \ 71 debug_event(device->debug_area, level, (void*)(addr), len); \ 72 } while (0) 73 74void qdio_allocate_dbf(struct qdio_initialize *init_data, 75 struct qdio_irq *irq_ptr); 76void qdio_setup_debug_entries(struct qdio_irq *irq_ptr, 77 struct ccw_device *cdev); 78void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr, 79 struct ccw_device *cdev); 80int qdio_debug_init(void); 81void qdio_debug_exit(void); 82 83#endif 84