Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 143 insertions, 0 deletions

diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
new file mode 100644
index 0000000..c50a9da
--- /dev/null
+++ b/drivers/s390/cio/cio.h
@@ -0,0 +1,143 @@
+#ifndef S390_CIO_H
+#define S390_CIO_H
+
+/*
+ * where we put the ssd info
+ */
+struct ssd_info {
+	__u8  valid:1;
+	__u8  type:7;		/* subchannel type */
+	__u8  chpid[8];		/* chpids */
+	__u16 fla[8];		/* full link addresses */
+} __attribute__ ((packed));
+
+/*
+ * path management control word
+ */
+struct pmcw {
+	__u32 intparm;		/* interruption parameter */
+	__u32 qf   : 1;		/* qdio facility */
+	__u32 res0 : 1;		/* reserved zeros */
+	__u32 isc  : 3;		/* interruption sublass */
+	__u32 res5 : 3;		/* reserved zeros */
+	__u32 ena  : 1;		/* enabled */
+	__u32 lm   : 2;		/* limit mode */
+	__u32 mme  : 2;		/* measurement-mode enable */
+	__u32 mp   : 1;		/* multipath mode */
+	__u32 tf   : 1;		/* timing facility */
+	__u32 dnv  : 1;		/* device number valid */
+	__u32 dev  : 16;	/* device number */
+	__u8  lpm;		/* logical path mask */
+	__u8  pnom;		/* path not operational mask */
+	__u8  lpum;		/* last path used mask */
+	__u8  pim;		/* path installed mask */
+	__u16 mbi;		/* measurement-block index */
+	__u8  pom;		/* path operational mask */
+	__u8  pam;		/* path available mask */
+	__u8  chpid[8];		/* CHPID 0-7 (if available) */
+	__u32 unused1 : 8;	/* reserved zeros */
+	__u32 st      : 3;	/* subchannel type */
+	__u32 unused2 : 18;	/* reserved zeros */
+	__u32 mbfc    : 1;      /* measurement block format control */
+	__u32 xmwme   : 1;      /* extended measurement word mode enable */
+	__u32 csense  : 1;	/* concurrent sense; can be enabled ...*/
+				/*  ... per MSCH, however, if facility */
+				/*  ... is not installed, this results */
+				/*  ... in an operand exception.       */
+} __attribute__ ((packed));
+
+/*
+ * subchannel information block
+ */
+struct schib {
+	struct pmcw pmcw;	 /* path management control word */
+	struct scsw scsw;	 /* subchannel status word */
+	__u64 mba;               /* measurement block address */
+	__u8 mda[4];		 /* model dependent area */
+} __attribute__ ((packed,aligned(4)));
+
+/*
+ * operation request block
+ */
+struct orb {
+	__u32 intparm;		/* interruption parameter */
+	__u32 key  : 4; 	/* flags, like key, suspend control, etc. */
+	__u32 spnd : 1; 	/* suspend control */
+	__u32 res1 : 1; 	/* reserved */
+	__u32 mod  : 1; 	/* modification control */
+	__u32 sync : 1; 	/* synchronize control */
+	__u32 fmt  : 1; 	/* format control */
+	__u32 pfch : 1; 	/* prefetch control */
+	__u32 isic : 1; 	/* initial-status-interruption control */
+	__u32 alcc : 1; 	/* address-limit-checking control */
+	__u32 ssic : 1; 	/* suppress-suspended-interr. control */
+	__u32 res2 : 1; 	/* reserved */
+	__u32 c64  : 1; 	/* IDAW/QDIO 64 bit control  */
+	__u32 i2k  : 1; 	/* IDAW 2/4kB block size control */
+	__u32 lpm  : 8; 	/* logical path mask */
+	__u32 ils  : 1; 	/* incorrect length */
+	__u32 zero : 6; 	/* reserved zeros */
+	__u32 orbx : 1; 	/* ORB extension control */
+	__u32 cpa;		/* channel program address */
+}  __attribute__ ((packed,aligned(4)));
+
+/* subchannel data structure used by I/O subroutines */
+struct subchannel {
+	unsigned int irq;	/* aka. subchannel number */
+	spinlock_t lock;	/* subchannel lock */
+
+	enum {
+		SUBCHANNEL_TYPE_IO = 0,
+		SUBCHANNEL_TYPE_CHSC = 1,
+		SUBCHANNEL_TYPE_MESSAGE = 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 */
+	struct schib schib;	/* subchannel information block */
+	struct orb orb;		/* operation request block */
+	struct ccw1 sense_ccw;	/* static ccw for sense command */
+	struct ssd_info ssd_info;	/* subchannel description */
+	struct device dev;	/* entry in device tree */
+	struct css_driver *driver;
+} __attribute__ ((aligned(8)));
+
+#define IO_INTERRUPT_TYPE	   0 /* I/O interrupt type */
+
+#define to_subchannel(n) container_of(n, struct subchannel, dev)
+
+extern int cio_validate_subchannel (struct subchannel *, unsigned int);
+extern int cio_enable_subchannel (struct subchannel *, unsigned int);
+extern int cio_disable_subchannel (struct subchannel *);
+extern int cio_cancel (struct subchannel *);
+extern int cio_clear (struct subchannel *);
+extern int cio_resume (struct subchannel *);
+extern int cio_halt (struct subchannel *);
+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 *);
+/* 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(int irq);
+extern struct subchannel *cio_get_console_subchannel(void);
+#else
+#define cio_is_console(irq) 0
+#define cio_get_console_subchannel() NULL
+#endif
+
+extern int cio_show_msg;
+
+#endif