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 */ 31