1 files changed, 32 insertions, 22 deletions

diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 3b236d20e83..a01376ae174 100644
--- a/drivers/s390/cio/cio.h
+++ b/drivers/s390/cio/cio.h
@@ -45,6 +45,19 @@ struct pmcw {
 				/*  ... in an operand exception.       */
 } __attribute__ ((packed));
 
+/* Target SCHIB configuration. */
+struct schib_config {
+	u64 mba;
+	u32 intparm;
+	u16 mbi;
+	u32 isc:3;
+	u32 ena:1;
+	u32 mme:2;
+	u32 mp:1;
+	u32 csense:1;
+	u32 mbfc:1;
+} __attribute__ ((packed));
+
 /*
  * subchannel information block
  */
@@ -55,6 +68,16 @@ struct schib {
 	__u8 mda[4];		 /* model dependent area */
 } __attribute__ ((packed,aligned(4)));
 
+/*
+ * When rescheduled, todo's with higher values will overwrite those
+ * with lower values.
+ */
+enum sch_todo {
+	SCH_TODO_NOTHING,
+	SCH_TODO_EVAL,
+	SCH_TODO_UNREG,
+};
+
 /* subchannel data structure used by I/O subroutines */
 struct subchannel {
 	struct subchannel_id schid;
@@ -66,13 +89,6 @@ struct subchannel {
 		SUBCHANNEL_TYPE_MSG = 2,
 		SUBCHANNEL_TYPE_ADM = 3,
 	} st;			/* subchannel type */
-
-	struct {
-		unsigned int suspend:1; /* allow suspend */
-		unsigned int prefetch:1;/* deny prefetch */
-		unsigned int inter:1;   /* suppress intermediate interrupts */
-	} __attribute__ ((packed)) options;
-
 	__u8 vpm;		/* verified path mask */
 	__u8 lpm;		/* logical path mask */
 	__u8 opm;               /* operational path mask */
@@ -81,10 +97,12 @@ struct subchannel {
 	struct chsc_ssd_info ssd_info;	/* subchannel description */
 	struct device dev;	/* entry in device tree */
 	struct css_driver *driver;
-	void *private; /* private per subchannel type data */
+	enum sch_todo todo;
+	struct work_struct todo_work;
+	struct schib_config config;
 } __attribute__ ((aligned(8)));
 
-#define IO_INTERRUPT_TYPE	   0 /* I/O interrupt type */
+DECLARE_PER_CPU(struct irb, cio_irb);
 
 #define to_subchannel(n) container_of(n, struct subchannel, dev)
 
@@ -99,29 +117,21 @@ extern int cio_start (struct subchannel *, struct ccw1 *, __u8);
 extern int cio_start_key (struct subchannel *, struct ccw1 *, __u8, __u8);
 extern int cio_cancel (struct subchannel *);
 extern int cio_set_options (struct subchannel *, int);
-extern int cio_get_options (struct subchannel *);
-extern int cio_modify (struct subchannel *);
+extern int cio_update_schib(struct subchannel *sch);
+extern int cio_commit_config(struct subchannel *sch);
 
 int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key);
 int cio_tm_intrg(struct subchannel *sch);
 
-int cio_create_sch_lock(struct subchannel *);
-void do_adapter_IO(u8 isc);
-void do_IRQ(struct pt_regs *);
-
 /* Use with care. */
 #ifdef CONFIG_CCW_CONSOLE
 extern struct subchannel *cio_probe_console(void);
-extern void cio_release_console(void);
 extern int cio_is_console(struct subchannel_id);
-extern struct subchannel *cio_get_console_subchannel(void);
-extern spinlock_t * cio_get_console_lock(void);
-extern void *cio_get_console_priv(void);
+extern void cio_register_early_subchannels(void);
+extern void cio_tsch(struct subchannel *sch);
 #else
 #define cio_is_console(schid) 0
-#define cio_get_console_subchannel() NULL
-#define cio_get_console_lock() NULL
-#define cio_get_console_priv() NULL
+static inline void cio_register_early_subchannels(void) {}
 #endif
 
 #endif