1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 *  Functions for incremental construction of fcx enabled I/O control blocks.
 4 *
 5 *    Copyright IBM Corp. 2008
 6 *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
 7 */
 8
 9#ifndef _ASM_S390_ITCW_H
10#define _ASM_S390_ITCW_H
11
12#include <linux/types.h>
13#include <asm/fcx.h>
14
15#define ITCW_OP_READ	0
16#define ITCW_OP_WRITE	1
17
18struct itcw;
19
20struct tcw *itcw_get_tcw(struct itcw *itcw);
21size_t itcw_calc_size(int intrg, int max_tidaws, int intrg_max_tidaws);
22struct itcw *itcw_init(void *buffer, size_t size, int op, int intrg,
23		       int max_tidaws, int intrg_max_tidaws);
24struct dcw *itcw_add_dcw(struct itcw *itcw, u8 cmd, u8 flags, void *cd,
25			 u8 cd_count, u32 count);
26struct tidaw *itcw_add_tidaw(struct itcw *itcw, u8 flags, void *addr,
27			     u32 count);
28void itcw_set_data(struct itcw *itcw, void *addr, int use_tidal);
29void itcw_finalize(struct itcw *itcw);
30
31#endif /* _ASM_S390_ITCW_H */

 
 1/*
 2 *  Functions for incremental construction of fcx enabled I/O control blocks.
 3 *
 4 *    Copyright IBM Corp. 2008
 5 *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
 6 */
 7
 8#ifndef _ASM_S390_ITCW_H
 9#define _ASM_S390_ITCW_H _ASM_S390_ITCW_H
10
11#include <linux/types.h>
12#include <asm/fcx.h>
13
14#define ITCW_OP_READ	0
15#define ITCW_OP_WRITE	1
16
17struct itcw;
18
19struct tcw *itcw_get_tcw(struct itcw *itcw);
20size_t itcw_calc_size(int intrg, int max_tidaws, int intrg_max_tidaws);
21struct itcw *itcw_init(void *buffer, size_t size, int op, int intrg,
22		       int max_tidaws, int intrg_max_tidaws);
23struct dcw *itcw_add_dcw(struct itcw *itcw, u8 cmd, u8 flags, void *cd,
24			 u8 cd_count, u32 count);
25struct tidaw *itcw_add_tidaw(struct itcw *itcw, u8 flags, void *addr,
26			     u32 count);
27void itcw_set_data(struct itcw *itcw, void *addr, int use_tidal);
28void itcw_finalize(struct itcw *itcw);
29
30#endif /* _ASM_S390_ITCW_H */