s390/cio/cio.h

40 	u32 st	    : 3;	/* subchannel type */
64  * subchannel information block
68 	union scsw scsw;	 /* subchannel status word */
83 /* subchannel data structure used by I/O subroutines */
84 struct subchannel {
86 	spinlock_t lock;	/* subchannel lock */
93 	} st;			/* subchannel type */
97 	struct schib schib;	/* subchannel information block */
99 	struct chsc_ssd_info ssd_info;	/* subchannel description */
115 #define to_subchannel(n) container_of(n, struct subchannel, dev)
117 extern int cio_enable_subchannel(struct subchannel *, u32);
118 extern int cio_disable_subchannel (struct subchannel *);
119 extern int cio_cancel (struct subchannel *);
120 extern int cio_clear (struct subchannel *);
121 extern int cio_cancel_halt_clear(struct subchannel *, int *);
122 extern int cio_resume (struct subchannel *);
123 extern int cio_halt (struct subchannel *);
124 extern int cio_start (struct subchannel *, struct ccw1 *, __u8);
125 extern int cio_start_key (struct subchannel *, struct ccw1 *, __u8, __u8);
126 extern int cio_set_options (struct subchannel *, int);
127 extern int cio_update_schib(struct subchannel *sch);
128 extern int cio_commit_config(struct subchannel *sch);
130 int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key);
131 int cio_tm_intrg(struct subchannel *sch);
137 extern struct subchannel *cio_probe_console(void);
140 extern void cio_tsch(struct subchannel *sch);