/*
* S390 version
* Copyright IBM Corp. 1999
* Author(s): Martin Schwidefsky ([email protected]),
* Christian Borntraeger ([email protected]),
*/

#ifndef _ASM_S390_CPCMD_H
#define _ASM_S390_CPCMD_H

/*
* the lowlevel function for cpcmd
* the caller of __cpcmd has to ensure that the response buffer is below 2 GB
*/
extern int __cpcmd(const char *cmd, char *response, int rlen, int *response_code);

/*
* cpcmd is the in-kernel interface for issuing CP commands
*
* cmd: null-terminated command string, max 240 characters
* response: response buffer for VM's textual response
* rlen: size of the response buffer, cpcmd will not exceed this size
* but will cap the output, if its too large. Everything that
* did not fit into the buffer will be silently dropped
* response_code: return pointer for VM's error code
* return value: the size of the response. The caller can check if the buffer
* was large enough by comparing the return value and rlen
* NOTE: If the response buffer is not below 2 GB, cpcmd can sleep
*/
extern int cpcmd(const char *cmd, char *response, int rlen, int *response_code);

#endif /* _ASM_S390_CPCMD_H */