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Release 4.12 include/linux/atmdev.h

Directory: include/linux
/* atmdev.h - ATM device driver declarations and various related items */


#include <linux/wait.h> /* wait_queue_head_t */
#include <linux/time.h> /* struct timeval */
#include <linux/net.h>
#include <linux/bug.h>
#include <linux/skbuff.h> /* struct sk_buff */
#include <linux/uio.h>
#include <net/sock.h>
#include <linux/atomic.h>
#include <uapi/linux/atmdev.h>

#include <linux/proc_fs.h>

extern struct proc_dir_entry *atm_proc_root;

#include <linux/compat.h>

struct compat_atm_iobuf {
int length;
compat_uptr_t buffer;

struct k_atm_aal_stats {

#define __HANDLE_ITEM(i) atomic_t i

#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;

struct device;

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_REMOVED,		/* device was removed from atm_devs list */

#define ATM_PHY_SIG_LOST    0	
/* no carrier/light */

/* 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 (*release_cb)(struct atm_vcc *vcc); /* release_sock callback */
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 */
struct module *owner;		/* owner of ->push function */
	/* 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; }


Arnaldo Carvalho de Melo22100.00%1100.00%

static inline struct atm_vcc *ATM_SD(struct socket *sock) { return atm_sk(sock->sk); }


Arnaldo Carvalho de Melo22100.00%1100.00%

static inline struct sock *sk_atm(struct atm_vcc *vcc) { return (struct sock *)vcc; }


Arnaldo Carvalho de Melo22100.00%1100.00%

struct atm_dev_addr { struct sockaddr_atmsvc addr; /* ATM address */ struct list_head entry; /* next address */ }; enum atm_addr_type_t { ATM_ADDR_LOCAL, ATM_ADDR_LECS }; 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 */ struct list_head lecs; /* LECS ATM addresses learned via ILMI */ 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 device class_dev; /* sysfs device */ 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); #ifdef CONFIG_COMPAT int (*compat_ioctl)(struct atm_dev *dev,unsigned int cmd, void __user *arg); #endif 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,unsigned 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, struct device *parent, const struct atmdev_ops *ops, int number, /* -1 == pick first available */ unsigned long *flags); struct atm_dev *atm_dev_lookup(int number); void atm_dev_deregister(struct atm_dev *dev); /* atm_dev_signal_change * * Propagate lower layer signal change in atm_dev->signal to netdevice. * The event will be sent via a notifier call chain. */ void atm_dev_signal_change(struct atm_dev *dev, char signal); void vcc_insert_socket(struct sock *sk); void atm_dev_release_vccs(struct atm_dev *dev);
static inline void atm_force_charge(struct atm_vcc *vcc,int truesize) { atomic_add(truesize, &sk_atm(vcc)->sk_rmem_alloc); }


Linus Torvalds (pre-git)2278.57%120.00%
Arnaldo Carvalho de Melo414.29%240.00%
Chas Williams27.14%240.00%

static inline void atm_return(struct atm_vcc *vcc,int truesize) { atomic_sub(truesize, &sk_atm(vcc)->sk_rmem_alloc); }


Linus Torvalds (pre-git)2278.57%120.00%
Arnaldo Carvalho de Melo414.29%240.00%
Chas Williams27.14%240.00%

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; }


Linus Torvalds (pre-git)2769.23%116.67%
Arnaldo Carvalho de Melo820.51%233.33%
Chas Williams410.26%350.00%

static inline void atm_dev_hold(struct atm_dev *dev) { atomic_inc(&dev->refcnt); }


Chas Williams20100.00%1100.00%

static inline void atm_dev_put(struct atm_dev *dev) { if (atomic_dec_and_test(&dev->refcnt)) { BUG_ON(!test_bit(ATM_DF_REMOVED, &dev->flags)); if (dev->ops->dev_close) dev->ops->dev_close(dev); put_device(&dev->class_dev); } }


Chas Williams3352.38%240.00%
Stanislaw W. Gruszka2641.27%120.00%
Roman Kagan34.76%120.00%
Kay Sievers11.59%120.00%

int atm_charge(struct atm_vcc *vcc,int truesize); struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc,int pdu_size, gfp_t gfp_flags); int atm_pcr_goal(const 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 *); /* register_atmdevice_notifier - register atm_dev notify events * * Clients like br2684 will register notify events * Currently we notify of signal found/lost */ int register_atmdevice_notifier(struct notifier_block *nb); void unregister_atmdevice_notifier(struct notifier_block *nb); #endif

Overall Contributors

Linus Torvalds (pre-git)88666.82%512.50%
Chas Williams16412.37%1332.50%
Arnaldo Carvalho de Melo876.56%25.00%
David Woodhouse584.37%25.00%
Karl Hiramoto322.41%12.50%
Stanislaw W. Gruszka282.11%12.50%
Eric Kinzie130.98%12.50%
Philip A. Prindeville90.68%12.50%
Mitchell Blank Jr.70.53%25.00%
David Howells70.53%12.50%
Krzysztof Mazur60.45%12.50%
Dan J Williams60.45%12.50%
Roman Kagan60.45%12.50%
Paul Gortmaker60.45%25.00%
Al Viro50.38%25.00%
Kay Sievers30.23%12.50%
David S. Miller10.08%12.50%
Arun Sharma10.08%12.50%
Matthew Wilcox10.08%12.50%
Directory: include/linux
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