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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 */