xref: /linux/arch/s390/appldata/appldata.h (revision 4b132aacb0768ac1e652cf517097ea6f237214b9)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Definitions and interface for Linux - z/VM Monitor Stream.
4  *
5  * Copyright IBM Corp. 2003, 2008
6  *
7  * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
8  */
9 
10 #define APPLDATA_MAX_REC_SIZE	  4024	/* Maximum size of the */
11 					/* data buffer */
12 #define APPLDATA_MAX_PROCS 100
13 
14 #define APPLDATA_PROC_NAME_LENGTH 16	/* Max. length of /proc name */
15 
16 #define APPLDATA_RECORD_MEM_ID		0x01	/* IDs to identify the */
17 #define APPLDATA_RECORD_OS_ID		0x02	/* individual records, */
18 #define APPLDATA_RECORD_NET_SUM_ID	0x03	/* must be < 256 !     */
19 #define APPLDATA_RECORD_PROC_ID		0x04
20 
21 #define CTL_APPLDATA_TIMER 	2121	/* sysctl IDs, must be unique */
22 #define CTL_APPLDATA_INTERVAL 	2122
23 #define CTL_APPLDATA_MEM	2123
24 #define CTL_APPLDATA_OS		2124
25 #define CTL_APPLDATA_NET_SUM	2125
26 #define CTL_APPLDATA_PROC	2126
27 
28 struct appldata_ops {
29 	struct list_head list;
30 	struct ctl_table_header *sysctl_header;
31 	struct ctl_table *ctl_table;
32 	int    active;				/* monitoring status */
33 
34 	/* fill in from here */
35 	char name[APPLDATA_PROC_NAME_LENGTH];	/* name of /proc fs node */
36 	unsigned char record_nr;		/* Record Nr. for Product ID */
37 	void (*callback)(void *data);		/* callback function */
38 	void *data;				/* record data */
39 	unsigned int size;			/* size of record */
40 	struct module *owner;			/* THIS_MODULE */
41 	char mod_lvl[2];			/* modification level, EBCDIC */
42 };
43 
44 extern int appldata_register_ops(struct appldata_ops *ops);
45 extern void appldata_unregister_ops(struct appldata_ops *ops);
46 extern int appldata_diag(char record_nr, u16 function, unsigned long buffer,
47 			 u16 length, char *mod_lvl);
48 
49