diff options
author | Ralf Baechle <ralf@linux-mips.org> | 1999-10-09 00:00:47 +0000 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 1999-10-09 00:00:47 +0000 |
commit | d6434e1042f3b0a6dfe1b1f615af369486f9b1fa (patch) | |
tree | e2be02f33984c48ec019c654051d27964e42c441 /include/linux/atmdev.h | |
parent | 609d1e803baf519487233b765eb487f9ec227a18 (diff) |
Merge with 2.3.19.
Diffstat (limited to 'include/linux/atmdev.h')
-rw-r--r-- | include/linux/atmdev.h | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h new file mode 100644 index 000000000..0287d1661 --- /dev/null +++ b/include/linux/atmdev.h @@ -0,0 +1,351 @@ +/* atmdev.h - ATM device driver declarations and various related items */ + +/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */ + + +#ifndef LINUX_ATMDEV_H +#define LINUX_ATMDEV_H + + +#include <linux/config.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_PDU_OVHD 0 /* number of bytes to charge against buffer + quota per PDU */ + +#define ATM_SD(s) ((s)->sk->protinfo.af_atm) + + +struct atm_aal_stats { + long tx,tx_err; /* TX okay and errors */ + long rx,rx_err; /* RX okay and errors */ + long rx_drop; /* RX out of memory */ +}; + + +struct atm_dev_stats { + struct atm_aal_stats aal0; + struct atm_aal_stats aal34; + struct atm_aal_stats aal5; +}; + + +#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_SETSC _IOW('a',ATMIOC_SPECIAL+1,int) + /* enable or disable single-copy */ + +/* for ATM_GETTYPE */ +#define ATM_ITFTYP_LEN 8 /* maximum length of interface type name */ + + + +struct atm_iobuf { + int length; + void *buffer; +}; + +/* for ATM_GETCIRANGE / ATM_SETCIRANGE */ + +#define ATM_CI_MAX -1 /* use maximum range of VPI/VCI */ + +struct atm_cirange { + char vpi_bits; /* 1..8, ATM_CI_MAX (-1) for maximum */ + 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" + + +#ifdef __KERNEL__ + +#include <linux/sched.h> /* wait_queue_head_t */ +#include <linux/time.h> /* struct timeval */ +#include <linux/net.h> +#include <linux/skbuff.h> /* struct sk_buff */ +#include <linux/atm.h> +#include <linux/uio.h> +#include <asm/atomic.h> + +#ifdef CONFIG_PROC_FS +#include <linux/proc_fs.h> +#endif + + +#define ATM_VF_ADDR 1 /* Address is in use. Set by anybody, cleared + by device driver. */ +#define ATM_VF_READY 2 /* VC is ready to transfer data. Set by device + driver, cleared by anybody. */ +#define ATM_VF_PARTIAL 4 /* resources are bound to PVC (partial PVC + setup), controlled by socket layer */ +#define ATM_VF_BOUND 16384 /* local SAP is set, controlled by SVC socket + layer */ +#define ATM_VF_REGIS 8 /* registered with demon, controlled by SVC + socket layer */ +#define ATM_VF_RELEASED 16 /* demon has indicated/requested release, + controlled by SVC socket layer */ +#define ATM_VF_HASQOS 32 /* QOS parameters have been set */ +#define ATM_VF_LISTEN 64 /* socket is used for listening */ +#define ATM_VF_META 128 /* SVC socket isn't used for normal data + traffic and doesn't depend on signaling + to be available */ +#define ATM_VF_AQREL 256 /* Arequipa VC is being released */ +#define ATM_VF_AQDANG 512 /* VC is in Arequipa's dangling list */ +#define ATM_VF_SCRX ATM_SC_RX /* 1024; allow single-copy in the RX dir. */ +#define ATM_VF_SCTX ATM_SC_TX /* 2048; allow single-copy in the TX dir. */ +#define ATM_VF_SESSION 4096 /* VCC is p2mp session control descriptor */ +#define ATM_VF_HASSAP 8192 /* SAP has been set */ +#define ATM_VF_CLOSE 32768 /* asynchronous close - treat like VF_RELEASED*/ + +#define ATM_VF2VS(flags) \ + ((flags) & ATM_VF_READY ? ATM_VS_CONNECTED : \ + (flags) & ATM_VF_RELEASED ? ATM_VS_CLOSING : \ + (flags) & ATM_VF_LISTEN ? ATM_VS_LISTEN : \ + (flags) & ATM_VF_REGIS ? ATM_VS_INUSE : \ + (flags) & ATM_VF_BOUND ? ATM_VS_BOUND : ATM_VS_IDLE) + +#define ATM_DF_CLOSE 1 /* 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 { + unsigned short flags; /* VCC flags (ATM_VF_*) */ + unsigned char family; /* address family; 0 if unused */ + 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 */ + unsigned long tx_quota,rx_quota; /* buffer quotas */ + atomic_t tx_inuse,rx_inuse; /* buffer space in use */ + void (*push)(struct atm_vcc *vcc,struct sk_buff *skb); + void (*pop)(struct atm_vcc *vcc,struct sk_buff *skb); /* optional */ + struct sk_buff *(*alloc_tx)(struct atm_vcc *vcc,unsigned int size); + /* TX allocation routine - can be */ + /* modified by protocol or by driver.*/ + /* NOTE: this interface will change */ + int (*push_oam)(struct atm_vcc *vcc,void *cell); + void *dev_data; /* per-device data */ + void *proto_data; /* per-protocol data */ + struct timeval timestamp; /* AAL timestamps */ + struct sk_buff_head recvq; /* receive queue */ + struct atm_aal_stats *stats; /* pointer to AAL stats group */ + wait_queue_head_t sleep; /* if socket is busy */ + wait_queue_head_t wsleep; /* if waiting for write buffer space */ + struct atm_vcc *prev,*next; + /* SVC part --- may move later ------------------------------------- */ + short itf; /* interface number */ + struct sockaddr_atmsvc local; + struct sockaddr_atmsvc remote; + void (*callback)(struct atm_vcc *vcc); + struct sk_buff_head listenq; + int backlog_quota; /* number of connection requests we */ + /* can still accept */ + int reply; /* also used by ATMTCP */ + /* Multipoint part ------------------------------------------------- */ + struct atm_vcc *session; /* session VCC descriptor */ + /* Other stuff ----------------------------------------------------- */ + void *user_back; /* user backlink - not touched */ +}; + + +struct atm_dev_addr { + struct sockaddr_atmsvc addr; /* ATM address */ + struct atm_dev_addr *next; /* 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 */ + struct atm_vcc *vccs; /* VCC table (or NULL) */ + struct atm_vcc *last; /* last VCC (or undefined) */ + void *dev_data; /* per-device data */ + void *phy_data; /* private PHY date */ + unsigned long flags; /* device flags (ATM_DF_*) */ + struct atm_dev_addr *local; /* local ATM addresses */ + unsigned char esi[ESI_LEN]; /* ESI ("MAC" addr) */ + struct atm_cirange ci_range; /* VPI/VCI range */ + struct atm_dev_stats stats; /* statistics */ + char signal; /* signal status (ATM_PHY_SIG_*) */ + int link_rate; /* link rate (default: OC3) */ +#ifdef CONFIG_PROC_FS + struct proc_dir_entry *proc_entry; /* proc entry */ + char *proc_name; /* proc entry name */ +#endif + struct atm_dev *prev,*next; /* linkage */ +}; + + +/* + * ioctl, getsockopt, setsockopt, and sg_send are optional and can be set to + * NULL. */ + +/* OF: send_Oam Flags */ + +#define ATM_OF_IMMED 1 /* Attempt immediate delivery */ +#define ATM_OF_INRATE 2 /* Attempt in-rate delivery */ + +struct atmdev_ops { /* only send is required */ + void (*dev_close)(struct atm_dev *dev); + int (*open)(struct atm_vcc *vcc,short vpi,int vci); + void (*close)(struct atm_vcc *vcc); + int (*ioctl)(struct atm_dev *dev,unsigned int cmd,void *arg); + int (*getsockopt)(struct atm_vcc *vcc,int level,int optname, + void *optval,int optlen); + int (*setsockopt)(struct atm_vcc *vcc,int level,int optname, + void *optval,int optlen); + int (*send)(struct atm_vcc *vcc,struct sk_buff *skb); + int (*sg_send)(struct atm_vcc *vcc,unsigned long start, + unsigned long size); +#if 0 /* keep the current hack for now */ + int (*send_iovec)(struct atm_vcc *vcc,struct iovec *iov,int size, + void (*discard)(struct atm_vcc *vcc,void *user),void *user); +#endif + 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); + void (*feedback)(struct atm_vcc *vcc,struct sk_buff *skb, + unsigned long start,unsigned long dest,int len); + int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags); + void (*free_rx_skb)(struct atm_vcc *vcc, struct sk_buff *skb); + /* @@@ temporary hack */ + int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page); +}; + + +struct atmphy_ops { + int (*start)(struct atm_dev *dev); + int (*ioctl)(struct atm_dev *dev,unsigned int cmd,void *arg); + void (*interrupt)(struct atm_dev *dev); +}; + +struct atm_skb_data { + struct atm_vcc *vcc; /* ATM VCC */ + int iovcnt; /* 0 for "normal" operation */ + unsigned long atm_options; /* ATM layer options */ +}; + +#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_find_dev(int number); +void atm_dev_deregister(struct atm_dev *dev); +void shutdown_atm_dev(struct atm_dev *dev); +void bind_vcc(struct atm_vcc *vcc,struct atm_dev *dev); + + +/* + * This is approximately the algorithm used by alloc_skb. + * + */ + +static __inline__ int atm_guess_pdu2truesize(int pdu_size) +{ + return ((pdu_size+15) & ~15) + sizeof(struct sk_buff); +} + + +static __inline__ void atm_force_charge(struct atm_vcc *vcc,int truesize) +{ + atomic_add(truesize+ATM_PDU_OVHD,&vcc->rx_inuse); +} + + +static __inline__ void atm_return(struct atm_vcc *vcc,int truesize) +{ + atomic_sub(truesize+ATM_PDU_OVHD,&vcc->rx_inuse); +} + + +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_find_ci(struct atm_vcc *vcc,short *vpi,int *vci); +int atm_pcr_goal(struct atm_trafprm *tp); + +void atm_async_release_vcc(struct atm_vcc *vcc,int reply); + +#endif /* __KERNEL__ */ + +#endif |