2 * channel program interfaces
4 * Copyright IBM Corp. 2017
10 #ifndef _VFIO_CCW_CP_H_
11 #define _VFIO_CCW_CP_H_
19 * struct channel_program - manage information for channel program
20 * @ccwchain_list: list head of ccwchains
21 * @orb: orb for the currently processed ssch request
22 * @mdev: the mediated device to perform page pinning/unpinning
24 * @ccwchain_list is the head of a ccwchain list, that contents the
25 * translated result of the guest channel program that pointed out by
26 * the iova parameter when calling cp_init.
28 struct channel_program {
29 struct list_head ccwchain_list;
34 extern int cp_init(struct channel_program *cp, struct device *mdev,
36 extern void cp_free(struct channel_program *cp);
37 extern int cp_prefetch(struct channel_program *cp);
38 extern union orb *cp_get_orb(struct channel_program *cp, u32 intparm, u8 lpm);
39 extern void cp_update_scsw(struct channel_program *cp, union scsw *scsw);
40 extern bool cp_iova_pinned(struct channel_program *cp, u64 iova);