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Commit 1c9d3e72 authored by Chas Williams's avatar Chas Williams Committed by David S. Miller
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[ATM]: [lec] header indent, comment and whitespace cleanup 

Signed-off-by: default avatarChas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1fa9961d
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Showing with 235 additions and 204 deletions
include/linux/atmlec.h
View file @ 1c9d3e72
/*
*
* ATM Lan Emulation Daemon vs. driver interface
*
* mkiiskila@yahoo.com
* ATM Lan Emulation Daemon driver interface
*
* Marko Kiiskila <mkiiskila@yahoo.com>
*/
#ifndef _ATMLEC_H_
......@@ -13,76 +11,87 @@
#include <linux/atmioc.h>
#include <linux/atm.h>
#include <linux/if_ether.h>
/* ATM lec daemon control socket */
#define ATMLEC_CTRL _IO('a',ATMIOC_LANE)
#define ATMLEC_DATA _IO('a',ATMIOC_LANE+1)
#define ATMLEC_MCAST _IO('a',ATMIOC_LANE+2)
#define ATMLEC_CTRL _IO('a', ATMIOC_LANE)
#define ATMLEC_DATA _IO('a', ATMIOC_LANE+1)
#define ATMLEC_MCAST _IO('a', ATMIOC_LANE+2)
/* Maximum number of LEC interfaces (tweakable) */
#define MAX_LEC_ITF 48
/* From the total of MAX_LEC_ITF, last NUM_TR_DEVS are reserved for Token Ring.
/*
* From the total of MAX_LEC_ITF, last NUM_TR_DEVS are reserved for Token Ring.
* E.g. if MAX_LEC_ITF = 48 and NUM_TR_DEVS = 8, then lec0-lec39 are for
* Ethernet ELANs and lec40-lec47 are for Token Ring ELANS.
*/
#define NUM_TR_DEVS 8
typedef enum {
l_set_mac_addr, l_del_mac_addr,
l_svc_setup,
l_addr_delete, l_topology_change,
l_flush_complete, l_arp_update,
l_narp_req, /* LANE2 mandates the use of this */
l_config, l_flush_tran_id,
l_set_lecid, l_arp_xmt,
l_rdesc_arp_xmt,
l_associate_req,
l_should_bridge /* should we bridge this MAC? */
typedef enum {
l_set_mac_addr,
l_del_mac_addr,
l_svc_setup,
l_addr_delete,
l_topology_change,
l_flush_complete,
l_arp_update,
l_narp_req, /* LANE2 mandates the use of this */
l_config,
l_flush_tran_id,
l_set_lecid,
l_arp_xmt,
l_rdesc_arp_xmt,
l_associate_req,
l_should_bridge /* should we bridge this MAC? */
} atmlec_msg_type;
#define ATMLEC_MSG_TYPE_MAX l_should_bridge
struct atmlec_config_msg {
unsigned int maximum_unknown_frame_count;
unsigned int max_unknown_frame_time;
unsigned short max_retry_count;
unsigned int aging_time;
unsigned int forward_delay_time;
unsigned int arp_response_time;
unsigned int flush_timeout;
unsigned int path_switching_delay;
unsigned int lane_version; /* LANE2: 1 for LANEv1, 2 for LANEv2 */
int mtu;
int is_proxy;
unsigned int maximum_unknown_frame_count;
unsigned int max_unknown_frame_time;
unsigned short max_retry_count;
unsigned int aging_time;
unsigned int forward_delay_time;
unsigned int arp_response_time;
unsigned int flush_timeout;
unsigned int path_switching_delay;
unsigned int lane_version; /* LANE2: 1 for LANEv1, 2 for LANEv2 */
int mtu;
int is_proxy;
};
struct atmlec_msg {
atmlec_msg_type type;
int sizeoftlvs; /* LANE2: if != 0, tlvs follow */
union {
struct {
unsigned char mac_addr[ETH_ALEN];
unsigned char atm_addr[ATM_ESA_LEN];
unsigned int flag;/* Topology_change flag,
remoteflag, permanent flag,
lecid, transaction id */
unsigned int targetless_le_arp; /* LANE2 */
unsigned int no_source_le_narp; /* LANE2 */
} normal;
struct atmlec_config_msg config;
struct {
uint16_t lec_id; /* requestor lec_id */
uint32_t tran_id; /* transaction id */
unsigned char mac_addr[ETH_ALEN]; /* dst mac addr */
unsigned char atm_addr[ATM_ESA_LEN]; /* reqestor ATM addr */
} proxy;
/* For mapping LE_ARP requests to responses. Filled by */
} content; /* zeppelin, returned by kernel. Used only when proxying */
atmlec_msg_type type;
int sizeoftlvs; /* LANE2: if != 0, tlvs follow */
union {
struct {
unsigned char mac_addr[ETH_ALEN];
unsigned char atm_addr[ATM_ESA_LEN];
unsigned int flag; /*
* Topology_change flag,
* remoteflag, permanent flag,
* lecid, transaction id
*/
unsigned int targetless_le_arp; /* LANE2 */
unsigned int no_source_le_narp; /* LANE2 */
} normal;
struct atmlec_config_msg config;
struct {
uint16_t lec_id; /* requestor lec_id */
uint32_t tran_id; /* transaction id */
unsigned char mac_addr[ETH_ALEN]; /* dst mac addr */
unsigned char atm_addr[ATM_ESA_LEN]; /* reqestor ATM addr */
} proxy; /*
* For mapping LE_ARP requests to responses. Filled by
* zeppelin, returned by kernel. Used only when proxying
*/
} content;
} __ATM_API_ALIGN;
struct atmlec_ioc {
int dev_num;
unsigned char atm_addr[ATM_ESA_LEN];
unsigned char receive; /* 1= receive vcc, 0 = send vcc */
int dev_num;
unsigned char atm_addr[ATM_ESA_LEN];
unsigned char receive; /* 1= receive vcc, 0 = send vcc */
};
#endif /* _ATMLEC_H_ */
net/atm/lec.h
View file @ 1c9d3e72
/*
*
* Lan Emulation client header file
*
* Marko Kiiskila mkiiskila@yahoo.com
*
* Marko Kiiskila <mkiiskila@yahoo.com>
*/
#ifndef _LEC_H_
#define _LEC_H_
#include <linux/config.h>
#include <linux/atmdev.h>
#include <linux/netdevice.h>
#include <linux/atmlec.h>
......@@ -16,18 +15,18 @@
#define LEC_HEADER_LEN 16
struct lecdatahdr_8023 {
unsigned short le_header;
unsigned char h_dest[ETH_ALEN];
unsigned char h_source[ETH_ALEN];
unsigned short h_type;
unsigned short le_header;
unsigned char h_dest[ETH_ALEN];
unsigned char h_source[ETH_ALEN];
unsigned short h_type;
};
struct lecdatahdr_8025 {
unsigned short le_header;
unsigned char ac_pad;
unsigned char fc;
unsigned char h_dest[ETH_ALEN];
unsigned char h_source[ETH_ALEN];
unsigned short le_header;
unsigned char ac_pad;
unsigned char fc;
unsigned char h_dest[ETH_ALEN];
unsigned char h_source[ETH_ALEN];
};
#define LEC_MINIMUM_8023_SIZE 62
......@@ -44,17 +43,18 @@ struct lecdatahdr_8025 {
*
*/
struct lane2_ops {
int (*resolve)(struct net_device *dev, u8 *dst_mac, int force,
u8 **tlvs, u32 *sizeoftlvs);
int (*associate_req)(struct net_device *dev, u8 *lan_dst,
u8 *tlvs, u32 sizeoftlvs);
void (*associate_indicator)(struct net_device *dev, u8 *mac_addr,
u8 *tlvs, u32 sizeoftlvs);
int (*resolve) (struct net_device *dev, u8 *dst_mac, int force,
u8 **tlvs, u32 *sizeoftlvs);
int (*associate_req) (struct net_device *dev, u8 *lan_dst,
u8 *tlvs, u32 sizeoftlvs);
void (*associate_indicator) (struct net_device *dev, u8 *mac_addr,
u8 *tlvs, u32 sizeoftlvs);
};
/*
* ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
* frames.
*
* 1. Dix Ethernet EtherType frames encoded by placing EtherType
* field in h_type field. Data follows immediatelly after header.
* 2. LLC Data frames whose total length, including LLC field and data,
......@@ -70,72 +70,88 @@ struct lane2_ops {
#define LEC_ARP_TABLE_SIZE 16
struct lec_priv {
struct net_device_stats stats;
unsigned short lecid; /* Lecid of this client */
struct lec_arp_table *lec_arp_empty_ones;
/* Used for storing VCC's that don't have a MAC address attached yet */
struct lec_arp_table *lec_arp_tables[LEC_ARP_TABLE_SIZE];
/* Actual LE ARP table */
struct lec_arp_table *lec_no_forward;
/* Used for storing VCC's (and forward packets from) which are to
age out by not using them to forward packets.
This is because to some LE clients there will be 2 VCCs. Only
one of them gets used. */
struct lec_arp_table *mcast_fwds;
/* With LANEv2 it is possible that BUS (or a special multicast server)
establishes multiple Multicast Forward VCCs to us. This list
collects all those VCCs. LANEv1 client has only one item in this
list. These entries are not aged out. */
spinlock_t lec_arp_lock;
struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */
struct atm_vcc *lecd;
struct timer_list lec_arp_timer;
/* C10 */
unsigned int maximum_unknown_frame_count;
/* Within the period of time defined by this variable, the client will send
no more than C10 frames to BUS for a given unicast destination. (C11) */
unsigned long max_unknown_frame_time;
/* If no traffic has been sent in this vcc for this period of time,
vcc will be torn down (C12)*/
unsigned long vcc_timeout_period;
/* An LE Client MUST not retry an LE_ARP_REQUEST for a
given frame's LAN Destination more than maximum retry count times,
after the first LEC_ARP_REQUEST (C13)*/
unsigned short max_retry_count;
/* Max time the client will maintain an entry in its arp cache in
absence of a verification of that relationship (C17)*/
unsigned long aging_time;
/* Max time the client will maintain an entry in cache when
topology change flag is true (C18) */
unsigned long forward_delay_time;
/* Topology change flag (C19)*/
int topology_change;
/* Max time the client expects an LE_ARP_REQUEST/LE_ARP_RESPONSE
cycle to take (C20)*/
unsigned long arp_response_time;
/* Time limit ot wait to receive an LE_FLUSH_RESPONSE after the
LE_FLUSH_REQUEST has been sent before taking recover action. (C21)*/
unsigned long flush_timeout;
/* The time since sending a frame to the bus after which the
LE Client may assume that the frame has been either discarded or
delivered to the recipient (C22) */
unsigned long path_switching_delay;
struct net_device_stats stats;
unsigned short lecid; /* Lecid of this client */
struct lec_arp_table *lec_arp_empty_ones;
/* Used for storing VCC's that don't have a MAC address attached yet */
struct lec_arp_table *lec_arp_tables[LEC_ARP_TABLE_SIZE];
/* Actual LE ARP table */
struct lec_arp_table *lec_no_forward;
/*
* Used for storing VCC's (and forward packets from) which are to
* age out by not using them to forward packets.
* This is because to some LE clients there will be 2 VCCs. Only
* one of them gets used.
*/
struct lec_arp_table *mcast_fwds;
/*
* With LANEv2 it is possible that BUS (or a special multicast server)
* establishes multiple Multicast Forward VCCs to us. This list
* collects all those VCCs. LANEv1 client has only one item in this
* list. These entries are not aged out.
*/
spinlock_t lec_arp_lock;
struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */
struct atm_vcc *lecd;
struct timer_list lec_arp_timer; /* C10 */
unsigned int maximum_unknown_frame_count;
/*
* Within the period of time defined by this variable, the client will send
* no more than C10 frames to BUS for a given unicast destination. (C11)
*/
unsigned long max_unknown_frame_time;
/*
* If no traffic has been sent in this vcc for this period of time,
* vcc will be torn down (C12)
*/
unsigned long vcc_timeout_period;
/*
* An LE Client MUST not retry an LE_ARP_REQUEST for a
* given frame's LAN Destination more than maximum retry count times,
* after the first LEC_ARP_REQUEST (C13)
*/
unsigned short max_retry_count;
/*
* Max time the client will maintain an entry in its arp cache in
* absence of a verification of that relationship (C17)
*/
unsigned long aging_time;
/*
* Max time the client will maintain an entry in cache when
* topology change flag is true (C18)
*/
unsigned long forward_delay_time; /* Topology change flag (C19) */
int topology_change;
/*
* Max time the client expects an LE_ARP_REQUEST/LE_ARP_RESPONSE
* cycle to take (C20)
*/
unsigned long arp_response_time;
/*
* Time limit ot wait to receive an LE_FLUSH_RESPONSE after the
* LE_FLUSH_REQUEST has been sent before taking recover action. (C21)
*/
unsigned long flush_timeout;
/* The time since sending a frame to the bus after which the
* LE Client may assume that the frame has been either discarded or
* delivered to the recipient (C22)
*/
unsigned long path_switching_delay;
u8 *tlvs; /* LANE2: TLVs are new */
u32 sizeoftlvs; /* The size of the tlv array in bytes */
int lane_version; /* LANE2 */
int itfnum; /* e.g. 2 for lec2, 5 for lec5 */
struct lane2_ops *lane2_ops; /* can be NULL for LANE v1 */
int is_proxy; /* bridge between ATM and Ethernet */
int is_trdev; /* Device type, 0 = Ethernet, 1 = TokenRing */
u8 *tlvs; /* LANE2: TLVs are new */
u32 sizeoftlvs; /* The size of the tlv array in bytes */
int lane_version; /* LANE2 */
int itfnum; /* e.g. 2 for lec2, 5 for lec5 */
struct lane2_ops *lane2_ops; /* can be NULL for LANE v1 */
int is_proxy; /* bridge between ATM and Ethernet */
int is_trdev; /* Device type, 0 = Ethernet, 1 = TokenRing */
};
struct lec_vcc_priv {
void (*old_pop)(struct atm_vcc *vcc, struct sk_buff *skb);
void (*old_pop) (struct atm_vcc *vcc, struct sk_buff *skb);
int xoff;
};
#define LEC_VCC_PRIV(vcc) ((struct lec_vcc_priv *)((vcc)->user_back))
#endif /* _LEC_H_ */
#endif /* _LEC_H_ */
net/atm/lec_arpc.h
View file @ 1c9d3e72
/*
* Lec arp cache
* Marko Kiiskila mkiiskila@yahoo.com
*
* Marko Kiiskila <mkiiskila@yahoo.com>
*/
#ifndef _LEC_ARP_H
#define _LEC_ARP_H
#ifndef _LEC_ARP_H_
#define _LEC_ARP_H_
#include <linux/atm.h>
#include <linux/atmdev.h>
#include <linux/if_ether.h>
#include <linux/atmlec.h>
struct lec_arp_table {
struct lec_arp_table *next; /* Linked entry list */
unsigned char atm_addr[ATM_ESA_LEN]; /* Atm address */
unsigned char mac_addr[ETH_ALEN]; /* Mac address */
int is_rdesc; /* Mac address is a route descriptor */
struct atm_vcc *vcc; /* Vcc this entry is attached */
struct atm_vcc *recv_vcc; /* Vcc we receive data from */
void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
/* Push that leads to daemon */
void (*old_recv_push)(struct atm_vcc *vcc, struct sk_buff *skb);
/* Push that leads to daemon */
void (*old_close)(struct atm_vcc *vcc);
/* We want to see when this
* vcc gets closed */
unsigned long last_used; /* For expiry */
unsigned long timestamp; /* Used for various timestamping
* things:
* 1. FLUSH started
* (status=ESI_FLUSH_PENDING)
* 2. Counting to
* max_unknown_frame_time
* (status=ESI_ARP_PENDING||
* status=ESI_VC_PENDING)
*/
unsigned char no_tries; /* No of times arp retry has been
tried */
unsigned char status; /* Status of this entry */
unsigned short flags; /* Flags for this entry */
unsigned short packets_flooded; /* Data packets flooded */
unsigned long flush_tran_id; /* Transaction id in flush protocol */
struct timer_list timer; /* Arping timer */
struct lec_priv *priv; /* Pointer back */
struct lec_arp_table *next; /* Linked entry list */
unsigned char atm_addr[ATM_ESA_LEN]; /* Atm address */
unsigned char mac_addr[ETH_ALEN]; /* Mac address */
int is_rdesc; /* Mac address is a route descriptor */
struct atm_vcc *vcc; /* Vcc this entry is attached */
struct atm_vcc *recv_vcc; /* Vcc we receive data from */
u8 *tlvs; /* LANE2: Each MAC address can have TLVs */
u32 sizeoftlvs; /* associated with it. sizeoftlvs tells the */
/* the length of the tlvs array */
struct sk_buff_head tx_wait; /* wait queue for outgoing packets */
void (*old_push) (struct atm_vcc *vcc, struct sk_buff *skb);
/* Push that leads to daemon */
void (*old_recv_push) (struct atm_vcc *vcc, struct sk_buff *skb);
/* Push that leads to daemon */
void (*old_close) (struct atm_vcc *vcc);
/* We want to see when this vcc gets closed */
unsigned long last_used; /* For expiry */
unsigned long timestamp; /* Used for various timestamping things:
* 1. FLUSH started
* (status=ESI_FLUSH_PENDING)
* 2. Counting to
* max_unknown_frame_time
* (status=ESI_ARP_PENDING||
* status=ESI_VC_PENDING)
*/
unsigned char no_tries; /* No of times arp retry has been tried */
unsigned char status; /* Status of this entry */
unsigned short flags; /* Flags for this entry */
unsigned short packets_flooded; /* Data packets flooded */
unsigned long flush_tran_id; /* Transaction id in flush protocol */
struct timer_list timer; /* Arping timer */
struct lec_priv *priv; /* Pointer back */
u8 *tlvs;
u32 sizeoftlvs; /*
* LANE2: Each MAC address can have TLVs
* associated with it. sizeoftlvs tells the
* the length of the tlvs array
*/
struct sk_buff_head tx_wait; /* wait queue for outgoing packets */
};
struct tlv { /* LANE2: Template tlv struct for accessing */
/* the tlvs in the lec_arp_table->tlvs array*/
u32 type;
u8 length;
u8 value[255];
/*
* LANE2: Template tlv struct for accessing
* the tlvs in the lec_arp_table->tlvs array
*/
struct tlv {
u32 type;
u8 length;
u8 value[255];
};
/* Status fields */
#define ESI_UNKNOWN 0 /*
* Next packet sent to this mac address
* causes ARP-request to be sent
*/
#define ESI_ARP_PENDING 1 /*
* There is no ATM address associated with this
* 48-bit address. The LE-ARP protocol is in
* progress.
*/
#define ESI_VC_PENDING 2 /*
* There is a valid ATM address associated with
* this 48-bit address but there is no VC set
* up to that ATM address. The signaling
* protocol is in process.
*/
#define ESI_FLUSH_PENDING 4 /*
* The LEC has been notified of the FLUSH_START
* status and it is assumed that the flush
* protocol is in process.
*/
#define ESI_FORWARD_DIRECT 5 /*
* Either the Path Switching Delay (C22) has
* elapsed or the LEC has notified the Mapping
* that the flush protocol has completed. In
* either case, it is safe to forward packets
* to this address via the data direct VC.
*/
#define ESI_UNKNOWN 0 /*
* Next packet sent to this mac address
* causes ARP-request to be sent
*/
#define ESI_ARP_PENDING 1 /*
* There is no ATM address associated with this
* 48-bit address. The LE-ARP protocol is in
* progress.
*/
#define ESI_VC_PENDING 2 /*
* There is a valid ATM address associated with
* this 48-bit address but there is no VC set
* up to that ATM address. The signaling
* protocol is in process.
*/
#define ESI_FLUSH_PENDING 4 /*
* The LEC has been notified of the FLUSH_START
* status and it is assumed that the flush
* protocol is in process.
*/
#define ESI_FORWARD_DIRECT 5 /*
* Either the Path Switching Delay (C22) has
* elapsed or the LEC has notified the Mapping
* that the flush protocol has completed. In
* either case, it is safe to forward packets
* to this address via the data direct VC.
*/
/* Flag values */
#define LEC_REMOTE_FLAG 0x0001
#define LEC_PERMANENT_FLAG 0x0002
#endif
#endif /* _LEC_ARP_H_ */
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