/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Definitions and interface for Linux - z/VM Monitor Stream.
 *
 * Copyright IBM Corp. 2003, 2008
 *
 * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
 */

#define APPLDATA_MAX_REC_SIZE     4024  /* Maximum size of the */
                                        /* data buffer */
#define APPLDATA_MAX_PROCS 100

#define APPLDATA_PROC_NAME_LENGTH 16    /* Max. length of /proc name */

#define APPLDATA_RECORD_MEM_ID          0x01    /* IDs to identify the */
#define APPLDATA_RECORD_OS_ID           0x02    /* individual records, */
#define APPLDATA_RECORD_NET_SUM_ID      0x03    /* must be < 256 !     */
#define APPLDATA_RECORD_PROC_ID         0x04

#define CTL_APPLDATA_TIMER      2121    /* sysctl IDs, must be unique */
#define CTL_APPLDATA_INTERVAL   2122
#define CTL_APPLDATA_MEM        2123
#define CTL_APPLDATA_OS         2124
#define CTL_APPLDATA_NET_SUM    2125
#define CTL_APPLDATA_PROC       2126

struct appldata_ops {
        struct list_head list;
        struct ctl_table_header *sysctl_header;
        struct ctl_table *ctl_table;
        int    active;                          /* monitoring status */

        /* fill in from here */
        char name[APPLDATA_PROC_NAME_LENGTH];   /* name of /proc fs node */
        unsigned char record_nr;                /* Record Nr. for Product ID */
        void (*callback)(void *data);           /* callback function */
        void *data;                             /* record data */
        unsigned int size;                      /* size of record */
        struct module *owner;                   /* THIS_MODULE */
        char mod_lvl[2];                        /* modification level, EBCDIC */
};

extern int appldata_register_ops(struct appldata_ops *ops);
extern void appldata_unregister_ops(struct appldata_ops *ops);
extern int appldata_diag(char record_nr, u16 function, unsigned long buffer,
                         u16 length, char *mod_lvl);