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[ATM]: [lec] header indent, comment and whitespace cleanup
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Signed-off-by: Chas Williams <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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@davem330
Chas Williams authored and davem330 committed Sep 30, 2006
1 parent 1fa9961 commit 1c9d3e7
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119 changes: 64 additions & 55 deletions include/linux/atmlec.h
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Original file line number Diff line number Diff line change
@@ -1,9 +1,7 @@
/*
*
* ATM Lan Emulation Daemon vs. driver interface
*
* [email protected]
* ATM Lan Emulation Daemon driver interface
*
* Marko Kiiskila <[email protected]>
*/

#ifndef _ATMLEC_H_
Expand All @@ -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_ */
172 changes: 94 additions & 78 deletions net/atm/lec.h
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Original file line number Diff line number Diff line change
@@ -1,33 +1,32 @@
/*
*
* Lan Emulation client header file
*
* Marko Kiiskila [email protected]
*
* Marko Kiiskila <[email protected]>
*/

#ifndef _LEC_H_
#define _LEC_H_

#include <linux/config.h>
#include <linux/atmdev.h>
#include <linux/netdevice.h>
#include <linux/atmlec.h>

#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
Expand All @@ -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,
Expand All @@ -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_ */
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