X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fs390%2Fcio%2Fcss.h;h=3464c5b875c470d8436f8054c740ff6a17f661f0;hb=refs%2Fheads%2Fvserver;hp=b834e6a72464b0c0372e76169454b3da2c295674;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git

diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index b834e6a72..3464c5b87 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -1,11 +1,14 @@
 #ifndef _CSS_H
 #define _CSS_H
 
+#include <linux/mutex.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
 
 #include <asm/cio.h>
 
+#include "schid.h"
+
 /*
  * path grouping stuff
  */
@@ -33,19 +36,25 @@ struct path_state {
 	__u8  resvd  : 3;	/* reserved */
 } __attribute__ ((packed));
 
+struct extended_cssid {
+	u8 version;
+	u8 cssid;
+} __attribute__ ((packed));
+
 struct pgid {
 	union {
 		__u8 fc;   	/* SPID function code */
 		struct path_state ps;	/* SNID path state */
-	} inf;
-	__u32 cpu_addr	: 16;	/* CPU address */
+	} __attribute__ ((packed)) inf;
+	union {
+		__u32 cpu_addr	: 16;	/* CPU address */
+		struct extended_cssid ext_cssid;
+	} __attribute__ ((packed)) pgid_high;
 	__u32 cpu_id	: 24;	/* CPU identification */
 	__u32 cpu_model : 16;	/* CPU model */
 	__u32 tod_high;		/* high word TOD clock */
 } __attribute__ ((packed));
 
-extern struct pgid global_pgid;
-
 #define MAX_CIWS 8
 
 /*
@@ -64,10 +73,13 @@ struct senseid {
 }  __attribute__ ((packed,aligned(4)));
 
 struct ccw_device_private {
+	struct ccw_device *cdev;
+	struct subchannel *sch;
 	int state;		/* device state */
 	atomic_t onoff;
-	__u16 devno;		/* device number */
-	__u16 irq;		/* subchannel number */
+	unsigned long registered;
+	struct ccw_dev_id dev_id;	/* device id */
+	struct subchannel_id schid;	/* subchannel number */
 	__u8 imask;		/* lpm mask for SNID/SID/SPGID */
 	int iretry;		/* retry counter SNID/SID/SPGID */
 	struct {
@@ -83,12 +95,14 @@ struct ccw_device_private {
 		unsigned int doverify:1;    /* delayed path verification */
 		unsigned int donotify:1;    /* call notify function */
 		unsigned int recog_done:1;  /* dev. recog. complete */
+		unsigned int fake_irb:1;    /* deliver faked irb */
+		unsigned int intretry:1;    /* retry internal operation */
 	} __attribute__((packed)) flags;
 	unsigned long intparm;	/* user interruption parameter */
 	struct qdio_irq *qdio_data;
 	struct irb irb;		/* device status */
 	struct senseid senseid;	/* SenseID info */
-	struct pgid pgid;	/* path group ID */
+	struct pgid pgid[8];	/* path group IDs per chpid*/
 	struct ccw1 iccws[2];	/* ccws for SNID/SID/SPGID commands */
 	struct work_struct kick_work;
 	wait_queue_head_t wait_q;
@@ -104,6 +118,7 @@ struct ccw_device_private {
  * Currently, we only care about I/O subchannels (type 0), these
  * have a ccw_device connected to them.
  */
+struct subchannel;
 struct css_driver {
 	unsigned int subchannel_type;
 	struct device_driver drv;
@@ -111,6 +126,9 @@ struct css_driver {
 	int (*notify)(struct device *, int);
 	void (*verify)(struct device *);
 	void (*termination)(struct device *);
+	int (*probe)(struct subchannel *);
+	int (*remove)(struct subchannel *);
+	void (*shutdown)(struct subchannel *);
 };
 
 /*
@@ -119,15 +137,36 @@ struct css_driver {
 extern struct bus_type css_bus_type;
 extern struct css_driver io_subchannel_driver;
 
-int css_probe_device(int irq);
-extern struct subchannel * get_subchannel_by_schid(int irq);
-extern unsigned int highest_subchannel;
+extern int css_probe_device(struct subchannel_id);
+extern int css_sch_device_register(struct subchannel *);
+extern void css_sch_device_unregister(struct subchannel *);
+extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
 extern int css_init_done;
-
-#define __MAX_SUBCHANNELS 65536
+extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *);
+
+#define __MAX_SUBCHANNEL 65535
+#define __MAX_SSID 3
+#define __MAX_CHPID 255
+#define __MAX_CSSID 0
+
+struct channel_subsystem {
+	u8 cssid;
+	int valid;
+	struct channel_path *chps[__MAX_CHPID + 1];
+	struct device device;
+	struct pgid global_pgid;
+	struct mutex mutex;
+	/* channel measurement related */
+	int cm_enabled;
+	void *cub_addr1;
+	void *cub_addr2;
+	/* for orphaned ccw devices */
+	struct subchannel *pseudo_subchannel;
+};
+#define to_css(dev) container_of(dev, struct channel_subsystem, device)
 
 extern struct bus_type css_bus_type;
-extern struct device css_bus_device;
+extern struct channel_subsystem *css[];
 
 /* Some helper functions for disconnected state. */
 int device_is_disconnected(struct subchannel *);
@@ -135,15 +174,26 @@ void device_set_disconnected(struct subchannel *);
 void device_trigger_reprobe(struct subchannel *);
 
 /* Helper functions for vary on/off. */
-void device_set_waiting(struct subchannel *);
+int device_is_online(struct subchannel *);
+void device_kill_io(struct subchannel *);
+void device_set_intretry(struct subchannel *sch);
+int device_trigger_verify(struct subchannel *sch);
+
+/* Machine check helper function. */
+void device_kill_pending_timer(struct subchannel *);
 
 /* Helper functions to build lists for the slow path. */
-int css_enqueue_subchannel_slow(unsigned long schid);
+extern int css_enqueue_subchannel_slow(struct subchannel_id schid);
 void css_walk_subchannel_slow_list(void (*fn)(unsigned long));
 void css_clear_subchannel_slow_list(void);
 int css_slow_subchannels_exist(void);
 extern int need_rescan;
 
+int sch_is_pseudo_sch(struct subchannel *);
+
 extern struct workqueue_struct *slow_path_wq;
 extern struct work_struct slow_path_work;
+
+int subchannel_add_files (struct device *);
+extern struct attribute_group *subch_attr_groups[];
 #endif