Linux-2.6.12-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, 489 insertions, 0 deletions

diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
new file mode 100644
index 00000000000..9f374cfa1b0
--- /dev/null
+++ b/include/linux/atmdev.h
@@ -0,0 +1,489 @@
+/* atmdev.h - ATM device driver declarations and various related items */
+ 
+/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
+ 
+
+#ifndef LINUX_ATMDEV_H
+#define LINUX_ATMDEV_H
+
+
+#include <linux/config.h>
+#include <linux/atmapi.h>
+#include <linux/atm.h>
+#include <linux/atmioc.h>
+
+
+#define ESI_LEN		6
+
+#define ATM_OC3_PCR	(155520000/270*260/8/53)
+			/* OC3 link rate:  155520000 bps
+			   SONET overhead: /270*260 (9 section, 1 path)
+			   bits per cell:  /8/53
+			   max cell rate:  353207.547 cells/sec */
+#define ATM_25_PCR	((25600000/8-8000)/54)
+			/* 25 Mbps ATM cell rate (59111) */
+#define ATM_OC12_PCR	(622080000/1080*1040/8/53)
+			/* OC12 link rate: 622080000 bps
+			   SONET overhead: /1080*1040
+			   bits per cell:  /8/53
+			   max cell rate:  1412830.188 cells/sec */
+#define ATM_DS3_PCR	(8000*12)
+			/* DS3: 12 cells in a 125 usec time slot */
+
+
+#define __AAL_STAT_ITEMS \
+    __HANDLE_ITEM(tx);			/* TX okay */ \
+    __HANDLE_ITEM(tx_err);		/* TX errors */ \
+    __HANDLE_ITEM(rx);			/* RX okay */ \
+    __HANDLE_ITEM(rx_err);		/* RX errors */ \
+    __HANDLE_ITEM(rx_drop);		/* RX out of memory */
+
+struct atm_aal_stats {
+#define __HANDLE_ITEM(i) int i
+	__AAL_STAT_ITEMS
+#undef __HANDLE_ITEM
+};
+
+
+struct atm_dev_stats {
+	struct atm_aal_stats aal0;
+	struct atm_aal_stats aal34;
+	struct atm_aal_stats aal5;
+} __ATM_API_ALIGN;
+
+
+#define ATM_GETLINKRATE	_IOW('a',ATMIOC_ITF+1,struct atmif_sioc)
+					/* get link rate */
+#define ATM_GETNAMES	_IOW('a',ATMIOC_ITF+3,struct atm_iobuf)
+					/* get interface names (numbers) */
+#define ATM_GETTYPE	_IOW('a',ATMIOC_ITF+4,struct atmif_sioc)
+					/* get interface type name */
+#define ATM_GETESI	_IOW('a',ATMIOC_ITF+5,struct atmif_sioc)
+					/* get interface ESI */
+#define ATM_GETADDR	_IOW('a',ATMIOC_ITF+6,struct atmif_sioc)
+					/* get itf's local ATM addr. list */
+#define ATM_RSTADDR	_IOW('a',ATMIOC_ITF+7,struct atmif_sioc)
+					/* reset itf's ATM address list */
+#define ATM_ADDADDR	_IOW('a',ATMIOC_ITF+8,struct atmif_sioc)
+					/* add a local ATM address */
+#define ATM_DELADDR	_IOW('a',ATMIOC_ITF+9,struct atmif_sioc)
+					/* remove a local ATM address */
+#define ATM_GETCIRANGE	_IOW('a',ATMIOC_ITF+10,struct atmif_sioc)
+					/* get connection identifier range */
+#define ATM_SETCIRANGE	_IOW('a',ATMIOC_ITF+11,struct atmif_sioc)
+					/* set connection identifier range */
+#define ATM_SETESI	_IOW('a',ATMIOC_ITF+12,struct atmif_sioc)
+					/* set interface ESI */
+#define ATM_SETESIF	_IOW('a',ATMIOC_ITF+13,struct atmif_sioc)
+					/* force interface ESI */
+#define ATM_GETSTAT	_IOW('a',ATMIOC_SARCOM+0,struct atmif_sioc)
+					/* get AAL layer statistics */
+#define ATM_GETSTATZ	_IOW('a',ATMIOC_SARCOM+1,struct atmif_sioc)
+					/* get AAL layer statistics and zero */
+#define ATM_GETLOOP	_IOW('a',ATMIOC_SARCOM+2,struct atmif_sioc)
+					/* get loopback mode */
+#define ATM_SETLOOP	_IOW('a',ATMIOC_SARCOM+3,struct atmif_sioc)
+					/* set loopback mode */
+#define ATM_QUERYLOOP	_IOW('a',ATMIOC_SARCOM+4,struct atmif_sioc)
+					/* query supported loopback modes */
+#define ATM_SETSC	_IOW('a',ATMIOC_SPECIAL+1,int)
+					/* enable or disable single-copy */
+#define ATM_SETBACKEND	_IOW('a',ATMIOC_SPECIAL+2,atm_backend_t)
+					/* set backend handler */
+#define ATM_NEWBACKENDIF _IOW('a',ATMIOC_SPECIAL+3,atm_backend_t)
+					/* use backend to make new if */
+#define ATM_ADDPARTY  	_IOW('a', ATMIOC_SPECIAL+4,struct atm_iobuf)
+ 					/* add party to p2mp call */
+#define ATM_DROPPARTY 	_IOW('a', ATMIOC_SPECIAL+5,int)
+					/* drop party from p2mp call */
+
+/*
+ * These are backend handkers that can be set via the ATM_SETBACKEND call
+ * above.  In the future we may support dynamic loading of these - for now,
+ * they're just being used to share the ATMIOC_BACKEND ioctls
+ */
+#define ATM_BACKEND_RAW		0	
+#define ATM_BACKEND_PPP		1	/* PPPoATM - RFC2364 */
+#define ATM_BACKEND_BR2684	2	/* Bridged RFC1483/2684 */
+
+/* for ATM_GETTYPE */
+#define ATM_ITFTYP_LEN	8	/* maximum length of interface type name */
+
+/*
+ * Loopback modes for ATM_{PHY,SAR}_{GET,SET}LOOP
+ */
+
+/* Point of loopback				CPU-->SAR-->PHY-->line--> ... */
+#define __ATM_LM_NONE	0	/* no loop back     ^     ^     ^      ^      */
+#define __ATM_LM_AAL	1	/* loop back PDUs --'     |     |      |      */
+#define __ATM_LM_ATM	2	/* loop back ATM cells ---'     |      |      */
+/* RESERVED		4	loop back on PHY side  ---'		      */
+#define __ATM_LM_PHY	8	/* loop back bits (digital) ----'      |      */
+#define __ATM_LM_ANALOG 16	/* loop back the analog signal --------'      */
+
+/* Direction of loopback */
+#define __ATM_LM_MKLOC(n)	((n))	    /* Local (i.e. loop TX to RX) */
+#define __ATM_LM_MKRMT(n)	((n) << 8)  /* Remote (i.e. loop RX to TX) */
+
+#define __ATM_LM_XTLOC(n)	((n) & 0xff)
+#define __ATM_LM_XTRMT(n)	(((n) >> 8) & 0xff)
+
+#define ATM_LM_NONE	0	/* no loopback */
+
+#define ATM_LM_LOC_AAL	__ATM_LM_MKLOC(__ATM_LM_AAL)
+#define ATM_LM_LOC_ATM	__ATM_LM_MKLOC(__ATM_LM_ATM)
+#define ATM_LM_LOC_PHY	__ATM_LM_MKLOC(__ATM_LM_PHY)
+#define ATM_LM_LOC_ANALOG __ATM_LM_MKLOC(__ATM_LM_ANALOG)
+
+#define ATM_LM_RMT_AAL	__ATM_LM_MKRMT(__ATM_LM_AAL)
+#define ATM_LM_RMT_ATM	__ATM_LM_MKRMT(__ATM_LM_ATM)
+#define ATM_LM_RMT_PHY	__ATM_LM_MKRMT(__ATM_LM_PHY)
+#define ATM_LM_RMT_ANALOG __ATM_LM_MKRMT(__ATM_LM_ANALOG)
+
+/*
+ * Note: ATM_LM_LOC_* and ATM_LM_RMT_* can be combined, provided that
+ * __ATM_LM_XTLOC(x) <= __ATM_LM_XTRMT(x)
+ */
+
+
+struct atm_iobuf {
+	int length;
+	void __user *buffer;
+};
+
+/* for ATM_GETCIRANGE / ATM_SETCIRANGE */
+
+#define ATM_CI_MAX      -1              /* use maximum range of VPI/VCI */
+ 
+struct atm_cirange {
+	signed char	vpi_bits;	/* 1..8, ATM_CI_MAX (-1) for maximum */
+	signed char	vci_bits;	/* 1..16, ATM_CI_MAX (-1) for maximum */
+};
+
+/* for ATM_SETSC; actually taken from the ATM_VF number space */
+
+#define ATM_SC_RX	1024		/* enable RX single-copy */
+#define ATM_SC_TX	2048		/* enable TX single-copy */
+
+#define ATM_BACKLOG_DEFAULT 32 /* if we get more, we're likely to time out
+				  anyway */
+
+/* MF: change_qos (Modify) flags */
+
+#define ATM_MF_IMMED	 1	/* Block until change is effective */
+#define ATM_MF_INC_RSV	 2	/* Change reservation on increase */
+#define ATM_MF_INC_SHP	 4	/* Change shaping on increase */
+#define ATM_MF_DEC_RSV	 8	/* Change reservation on decrease */
+#define ATM_MF_DEC_SHP	16	/* Change shaping on decrease */
+#define ATM_MF_BWD	32	/* Set the backward direction parameters */
+
+#define ATM_MF_SET	(ATM_MF_INC_RSV | ATM_MF_INC_SHP | ATM_MF_DEC_RSV | \
+			  ATM_MF_DEC_SHP | ATM_MF_BWD)
+
+/*
+ * ATM_VS_* are used to express VC state in a human-friendly way.
+ */
+
+#define ATM_VS_IDLE	0	/* VC is not used */
+#define ATM_VS_CONNECTED 1	/* VC is connected */
+#define ATM_VS_CLOSING	2	/* VC is closing */
+#define ATM_VS_LISTEN	3	/* VC is listening for incoming setups */
+#define ATM_VS_INUSE	4	/* VC is in use (registered with atmsigd) */
+#define ATM_VS_BOUND	5	/* VC is bound */
+
+#define ATM_VS2TXT_MAP \
+    "IDLE", "CONNECTED", "CLOSING", "LISTEN", "INUSE", "BOUND"
+
+#define ATM_VF2TXT_MAP \
+    "ADDR",	"READY",	"PARTIAL",	"REGIS", \
+    "RELEASED", "HASQOS",	"LISTEN",	"META", \
+    "256",	"512",		"1024",		"2048", \
+    "SESSION",	"HASSAP",	"BOUND",	"CLOSE"
+
+
+#ifdef __KERNEL__
+
+#include <linux/wait.h> /* wait_queue_head_t */
+#include <linux/time.h> /* struct timeval */
+#include <linux/net.h>
+#include <linux/skbuff.h> /* struct sk_buff */
+#include <linux/uio.h>
+#include <net/sock.h>
+#include <asm/atomic.h>
+
+#ifdef CONFIG_PROC_FS
+#include <linux/proc_fs.h>
+
+extern struct proc_dir_entry *atm_proc_root;
+#endif
+
+
+struct k_atm_aal_stats {
+#define __HANDLE_ITEM(i) atomic_t i
+	__AAL_STAT_ITEMS
+#undef __HANDLE_ITEM
+};
+
+
+struct k_atm_dev_stats {
+	struct k_atm_aal_stats aal0;
+	struct k_atm_aal_stats aal34;
+	struct k_atm_aal_stats aal5;
+};
+
+
+enum {
+	ATM_VF_ADDR,		/* Address is in use. Set by anybody, cleared
+				   by device driver. */
+	ATM_VF_READY,		/* VC is ready to transfer data. Set by device
+				   driver, cleared by anybody. */
+	ATM_VF_PARTIAL,		/* resources are bound to PVC (partial PVC
+				   setup), controlled by socket layer */
+	ATM_VF_REGIS,		/* registered with demon, controlled by SVC
+				   socket layer */
+	ATM_VF_BOUND,		/* local SAP is set, controlled by SVC socket
+				   layer */
+	ATM_VF_RELEASED,	/* demon has indicated/requested release,
+				   controlled by SVC socket layer */
+	ATM_VF_HASQOS,		/* QOS parameters have been set */
+	ATM_VF_LISTEN,		/* socket is used for listening */
+	ATM_VF_META,		/* SVC socket isn't used for normal data
+				   traffic and doesn't depend on signaling
+				   to be available */
+	ATM_VF_SESSION,		/* VCC is p2mp session control descriptor */
+	ATM_VF_HASSAP,		/* SAP has been set */
+	ATM_VF_CLOSE,		/* asynchronous close - treat like VF_RELEASED*/
+	ATM_VF_WAITING,		/* waiting for reply from sigd */
+	ATM_VF_IS_CLIP,		/* in use by CLIP protocol */
+};
+
+
+#define ATM_VF2VS(flags) \
+    (test_bit(ATM_VF_READY,&(flags)) ? ATM_VS_CONNECTED : \
+     test_bit(ATM_VF_RELEASED,&(flags)) ? ATM_VS_CLOSING : \
+     test_bit(ATM_VF_LISTEN,&(flags)) ? ATM_VS_LISTEN : \
+     test_bit(ATM_VF_REGIS,&(flags)) ? ATM_VS_INUSE : \
+     test_bit(ATM_VF_BOUND,&(flags)) ? ATM_VS_BOUND : ATM_VS_IDLE)
+
+
+enum {
+	ATM_DF_CLOSE,		/* close device when last VCC is closed */
+};
+
+
+#define ATM_PHY_SIG_LOST    0	/* no carrier/light */
+#define ATM_PHY_SIG_UNKNOWN 1	/* carrier/light status is unknown */
+#define ATM_PHY_SIG_FOUND   2	/* carrier/light okay */
+
+#define ATM_ATMOPT_CLP	1	/* set CLP bit */
+
+struct atm_vcc {
+	/* struct sock has to be the first member of atm_vcc */
+	struct sock	sk;
+	unsigned long	flags;		/* VCC flags (ATM_VF_*) */
+	short		vpi;		/* VPI and VCI (types must be equal */
+					/* with sockaddr) */
+	int 		vci;
+	unsigned long	aal_options;	/* AAL layer options */
+	unsigned long	atm_options;	/* ATM layer options */
+	struct atm_dev	*dev;		/* device back pointer */
+	struct atm_qos	qos;		/* QOS */
+	struct atm_sap	sap;		/* SAP */
+	void (*push)(struct atm_vcc *vcc,struct sk_buff *skb);
+	void (*pop)(struct atm_vcc *vcc,struct sk_buff *skb); /* optional */
+	int (*push_oam)(struct atm_vcc *vcc,void *cell);
+	int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
+	void		*dev_data;	/* per-device data */
+	void		*proto_data;	/* per-protocol data */
+	struct k_atm_aal_stats *stats;	/* pointer to AAL stats group */
+	/* SVC part --- may move later ------------------------------------- */
+	short		itf;		/* interface number */
+	struct sockaddr_atmsvc local;
+	struct sockaddr_atmsvc remote;
+	/* Multipoint part ------------------------------------------------- */
+	struct atm_vcc	*session;	/* session VCC descriptor */
+	/* Other stuff ----------------------------------------------------- */
+	void		*user_back;	/* user backlink - not touched by */
+					/* native ATM stack. Currently used */
+					/* by CLIP and sch_atm. */
+};
+
+static inline struct atm_vcc *atm_sk(struct sock *sk)
+{
+	return (struct atm_vcc *)sk;
+}
+
+static inline struct atm_vcc *ATM_SD(struct socket *sock)
+{
+	return atm_sk(sock->sk);
+}
+
+static inline struct sock *sk_atm(struct atm_vcc *vcc)
+{
+	return (struct sock *)vcc;
+}
+
+struct atm_dev_addr {
+	struct sockaddr_atmsvc addr;	/* ATM address */
+	struct list_head entry;		/* next address */
+};
+
+struct atm_dev {
+	const struct atmdev_ops *ops;	/* device operations; NULL if unused */
+	const struct atmphy_ops *phy;	/* PHY operations, may be undefined */
+					/* (NULL) */
+	const char	*type;		/* device type name */
+	int		number;		/* device index */
+	void		*dev_data;	/* per-device data */
+	void		*phy_data;	/* private PHY date */
+	unsigned long	flags;		/* device flags (ATM_DF_*) */
+	struct list_head local;		/* local ATM addresses */
+	unsigned char	esi[ESI_LEN];	/* ESI ("MAC" addr) */
+	struct atm_cirange ci_range;	/* VPI/VCI range */
+	struct k_atm_dev_stats stats;	/* statistics */
+	char		signal;		/* signal status (ATM_PHY_SIG_*) */
+	int		link_rate;	/* link rate (default: OC3) */
+	atomic_t	refcnt;		/* reference count */
+	spinlock_t	lock;		/* protect internal members */
+#ifdef CONFIG_PROC_FS
+	struct proc_dir_entry *proc_entry; /* proc entry */
+	char *proc_name;		/* proc entry name */
+#endif
+	struct list_head dev_list;	/* linkage */
+};
+
+ 
+/* OF: send_Oam Flags */
+
+#define ATM_OF_IMMED  1		/* Attempt immediate delivery */
+#define ATM_OF_INRATE 2		/* Attempt in-rate delivery */
+
+
+/*
+ * ioctl, getsockopt, and setsockopt are optional and can be set to NULL.
+ */
+
+struct atmdev_ops { /* only send is required */
+	void (*dev_close)(struct atm_dev *dev);
+	int (*open)(struct atm_vcc *vcc);
+	void (*close)(struct atm_vcc *vcc);
+	int (*ioctl)(struct atm_dev *dev,unsigned int cmd,void __user *arg);
+	int (*getsockopt)(struct atm_vcc *vcc,int level,int optname,
+	    void __user *optval,int optlen);
+	int (*setsockopt)(struct atm_vcc *vcc,int level,int optname,
+	    void __user *optval,int optlen);
+	int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
+	int (*send_oam)(struct atm_vcc *vcc,void *cell,int flags);
+	void (*phy_put)(struct atm_dev *dev,unsigned char value,
+	    unsigned long addr);
+	unsigned char (*phy_get)(struct atm_dev *dev,unsigned long addr);
+	int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
+	int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
+	struct module *owner;
+};
+
+struct atmphy_ops {
+	int (*start)(struct atm_dev *dev);
+	int (*ioctl)(struct atm_dev *dev,unsigned int cmd,void __user *arg);
+	void (*interrupt)(struct atm_dev *dev);
+	int (*stop)(struct atm_dev *dev);
+};
+
+struct atm_skb_data {
+	struct atm_vcc	*vcc;		/* ATM VCC */
+	unsigned long	atm_options;	/* ATM layer options */
+};
+
+#define VCC_HTABLE_SIZE 32
+
+extern struct hlist_head vcc_hash[VCC_HTABLE_SIZE];
+extern rwlock_t vcc_sklist_lock;
+
+#define ATM_SKB(skb) (((struct atm_skb_data *) (skb)->cb))
+
+struct atm_dev *atm_dev_register(const char *type,const struct atmdev_ops *ops,
+    int number,unsigned long *flags); /* number == -1: pick first available */
+struct atm_dev *atm_dev_lookup(int number);
+void atm_dev_deregister(struct atm_dev *dev);
+void shutdown_atm_dev(struct atm_dev *dev);
+void vcc_insert_socket(struct sock *sk);
+
+
+/*
+ * This is approximately the algorithm used by alloc_skb.
+ *
+ */
+
+static inline int atm_guess_pdu2truesize(int size)
+{
+	return (SKB_DATA_ALIGN(size) + sizeof(struct skb_shared_info));
+}
+
+
+static inline void atm_force_charge(struct atm_vcc *vcc,int truesize)
+{
+	atomic_add(truesize, &sk_atm(vcc)->sk_rmem_alloc);
+}
+
+
+static inline void atm_return(struct atm_vcc *vcc,int truesize)
+{
+	atomic_sub(truesize, &sk_atm(vcc)->sk_rmem_alloc);
+}
+
+
+static inline int atm_may_send(struct atm_vcc *vcc,unsigned int size)
+{
+	return (size + atomic_read(&sk_atm(vcc)->sk_wmem_alloc)) <
+	       sk_atm(vcc)->sk_sndbuf;
+}
+
+
+static inline void atm_dev_hold(struct atm_dev *dev)
+{
+	atomic_inc(&dev->refcnt);
+}
+
+
+static inline void atm_dev_put(struct atm_dev *dev)
+{
+	atomic_dec(&dev->refcnt);
+
+	if ((atomic_read(&dev->refcnt) == 1) &&
+	    test_bit(ATM_DF_CLOSE,&dev->flags))
+		shutdown_atm_dev(dev);
+}
+
+
+int atm_charge(struct atm_vcc *vcc,int truesize);
+struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc,int pdu_size,
+    int gfp_flags);
+int atm_pcr_goal(struct atm_trafprm *tp);
+
+void vcc_release_async(struct atm_vcc *vcc, int reply);
+
+struct atm_ioctl {
+	struct module *owner;
+	/* A module reference is kept if appropriate over this call.
+	 * Return -ENOIOCTLCMD if you don't handle it. */
+	int (*ioctl)(struct socket *, unsigned int cmd, unsigned long arg);
+	struct list_head list;
+};
+
+/**
+ * register_atm_ioctl - register handler for ioctl operations
+ *
+ * Special (non-device) handlers of ioctl's should
+ * register here. If you're a normal device, you should
+ * set .ioctl in your atmdev_ops instead.
+ */
+void register_atm_ioctl(struct atm_ioctl *);
+
+/**
+ * deregister_atm_ioctl - remove the ioctl handler
+ */
+void deregister_atm_ioctl(struct atm_ioctl *);
+
+#endif /* __KERNEL__ */
+
+#endif