1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  *  Copyright IBM Corp. 2008
4  *
5  *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
6  */
7 #ifndef QDIO_DEBUG_H
8 #define QDIO_DEBUG_H
9 
10 #include <asm/debug.h>
11 #include <asm/qdio.h>
12 #include "qdio.h"
13 
14 /* that gives us 15 characters in the text event views */
15 #define QDIO_DBF_LEN	32
16 
17 extern debug_info_t *qdio_dbf_setup;
18 extern debug_info_t *qdio_dbf_error;
19 
20 #define DBF_ERR		3	/* error conditions	*/
21 #define DBF_WARN	4	/* warning conditions	*/
22 #define DBF_INFO	6	/* informational	*/
23 
24 #undef DBF_EVENT
25 #undef DBF_ERROR
26 #undef DBF_DEV_EVENT
27 
28 #define DBF_EVENT(text...) \
29 	do { \
30 		char debug_buffer[QDIO_DBF_LEN]; \
31 		snprintf(debug_buffer, QDIO_DBF_LEN, text); \
32 		debug_text_event(qdio_dbf_setup, DBF_ERR, debug_buffer); \
33 	} while (0)
34 
DBF_HEX(void * addr,int len)35 static inline void DBF_HEX(void *addr, int len)
36 {
37 	debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
38 }
39 
40 #define DBF_ERROR(text...) \
41 	do { \
42 		char debug_buffer[QDIO_DBF_LEN]; \
43 		snprintf(debug_buffer, QDIO_DBF_LEN, text); \
44 		debug_text_event(qdio_dbf_error, DBF_ERR, debug_buffer); \
45 	} while (0)
46 
DBF_ERROR_HEX(void * addr,int len)47 static inline void DBF_ERROR_HEX(void *addr, int len)
48 {
49 	debug_event(qdio_dbf_error, DBF_ERR, addr, len);
50 }
51 
52 #define DBF_DEV_EVENT(level, device, text...) \
53 	do { \
54 		char debug_buffer[QDIO_DBF_LEN]; \
55 		if (debug_level_enabled(device->debug_area, level)) { \
56 			snprintf(debug_buffer, QDIO_DBF_LEN, text); \
57 			debug_text_event(device->debug_area, level, debug_buffer); \
58 		} \
59 	} while (0)
60 
DBF_DEV_HEX(struct qdio_irq * dev,void * addr,int len,int level)61 static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
62 			       int len, int level)
63 {
64 	debug_event(dev->debug_area, level, addr, len);
65 }
66 
67 int qdio_allocate_dbf(struct qdio_initialize *init_data,
68 		       struct qdio_irq *irq_ptr);
69 void qdio_setup_debug_entries(struct qdio_irq *irq_ptr,
70 			      struct ccw_device *cdev);
71 void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr);
72 int qdio_debug_init(void);
73 void qdio_debug_exit(void);
74 
75 #endif
76