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| /* SPDX-License-Identifier: GPL-2.0 */
| /*
| * 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 */
|
|
