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/*
* Functions for incremental construction of fcx enabled I/O control blocks.
*
* Copyright IBM Corp. 2008
* Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
*/
#ifndef _ASM_S390_ITCW_H
#define _ASM_S390_ITCW_H
#include <linux/types.h>
#include <asm/fcx.h>
#define ITCW_OP_READ 0
#define ITCW_OP_WRITE 1
struct itcw;
struct tcw *itcw_get_tcw(struct itcw *itcw);
size_t itcw_calc_size(int intrg, int max_tidaws, int intrg_max_tidaws);
struct itcw *itcw_init(void *buffer, size_t size, int op, int intrg,
int max_tidaws, int intrg_max_tidaws);
struct dcw *itcw_add_dcw(struct itcw *itcw, u8 cmd, u8 flags, void *cd,
u8 cd_count, u32 count);
struct tidaw *itcw_add_tidaw(struct itcw *itcw, u8 flags, void *addr,
u32 count);
void itcw_set_data(struct itcw *itcw, void *addr, int use_tidal);
void itcw_finalize(struct itcw *itcw);
#endif /* _ASM_S390_ITCW_H */
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