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-rw-r--r--net/atm/lec.h172
-rw-r--r--net/atm/lec_arpc.h148
2 files changed, 171 insertions, 149 deletions
diff --git a/net/atm/lec.h b/net/atm/lec.h
index c22a8bfa1f81..c700472f64df 100644
--- a/net/atm/lec.h
+++ b/net/atm/lec.h
@@ -1,14 +1,13 @@
1/* 1/*
2 *
3 * Lan Emulation client header file 2 * Lan Emulation client header file
4 * 3 *
5 * Marko Kiiskila mkiiskila@yahoo.com 4 * Marko Kiiskila <mkiiskila@yahoo.com>
6 *
7 */ 5 */
8 6
9#ifndef _LEC_H_ 7#ifndef _LEC_H_
10#define _LEC_H_ 8#define _LEC_H_
11 9
10#include <linux/config.h>
12#include <linux/atmdev.h> 11#include <linux/atmdev.h>
13#include <linux/netdevice.h> 12#include <linux/netdevice.h>
14#include <linux/atmlec.h> 13#include <linux/atmlec.h>
@@ -16,18 +15,18 @@
16#define LEC_HEADER_LEN 16 15#define LEC_HEADER_LEN 16
17 16
18struct lecdatahdr_8023 { 17struct lecdatahdr_8023 {
19 unsigned short le_header; 18 unsigned short le_header;
20 unsigned char h_dest[ETH_ALEN]; 19 unsigned char h_dest[ETH_ALEN];
21 unsigned char h_source[ETH_ALEN]; 20 unsigned char h_source[ETH_ALEN];
22 unsigned short h_type; 21 unsigned short h_type;
23}; 22};
24 23
25struct lecdatahdr_8025 { 24struct lecdatahdr_8025 {
26 unsigned short le_header; 25 unsigned short le_header;
27 unsigned char ac_pad; 26 unsigned char ac_pad;
28 unsigned char fc; 27 unsigned char fc;
29 unsigned char h_dest[ETH_ALEN]; 28 unsigned char h_dest[ETH_ALEN];
30 unsigned char h_source[ETH_ALEN]; 29 unsigned char h_source[ETH_ALEN];
31}; 30};
32 31
33#define LEC_MINIMUM_8023_SIZE 62 32#define LEC_MINIMUM_8023_SIZE 62
@@ -44,17 +43,18 @@ struct lecdatahdr_8025 {
44 * 43 *
45 */ 44 */
46struct lane2_ops { 45struct lane2_ops {
47 int (*resolve)(struct net_device *dev, u8 *dst_mac, int force, 46 int (*resolve) (struct net_device *dev, u8 *dst_mac, int force,
48 u8 **tlvs, u32 *sizeoftlvs); 47 u8 **tlvs, u32 *sizeoftlvs);
49 int (*associate_req)(struct net_device *dev, u8 *lan_dst, 48 int (*associate_req) (struct net_device *dev, u8 *lan_dst,
50 u8 *tlvs, u32 sizeoftlvs); 49 u8 *tlvs, u32 sizeoftlvs);
51 void (*associate_indicator)(struct net_device *dev, u8 *mac_addr, 50 void (*associate_indicator) (struct net_device *dev, u8 *mac_addr,
52 u8 *tlvs, u32 sizeoftlvs); 51 u8 *tlvs, u32 sizeoftlvs);
53}; 52};
54 53
55/* 54/*
56 * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType 55 * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
57 * frames. 56 * frames.
57 *
58 * 1. Dix Ethernet EtherType frames encoded by placing EtherType 58 * 1. Dix Ethernet EtherType frames encoded by placing EtherType
59 * field in h_type field. Data follows immediatelly after header. 59 * field in h_type field. Data follows immediatelly after header.
60 * 2. LLC Data frames whose total length, including LLC field and data, 60 * 2. LLC Data frames whose total length, including LLC field and data,
@@ -70,72 +70,88 @@ struct lane2_ops {
70#define LEC_ARP_TABLE_SIZE 16 70#define LEC_ARP_TABLE_SIZE 16
71 71
72struct lec_priv { 72struct lec_priv {
73 struct net_device_stats stats; 73 struct net_device_stats stats;
74 unsigned short lecid; /* Lecid of this client */ 74 unsigned short lecid; /* Lecid of this client */
75 struct lec_arp_table *lec_arp_empty_ones; 75 struct lec_arp_table *lec_arp_empty_ones;
76 /* Used for storing VCC's that don't have a MAC address attached yet */ 76 /* Used for storing VCC's that don't have a MAC address attached yet */
77 struct lec_arp_table *lec_arp_tables[LEC_ARP_TABLE_SIZE]; 77 struct lec_arp_table *lec_arp_tables[LEC_ARP_TABLE_SIZE];
78 /* Actual LE ARP table */ 78 /* Actual LE ARP table */
79 struct lec_arp_table *lec_no_forward; 79 struct lec_arp_table *lec_no_forward;
80 /* Used for storing VCC's (and forward packets from) which are to 80 /*
81 age out by not using them to forward packets. 81 * Used for storing VCC's (and forward packets from) which are to
82 This is because to some LE clients there will be 2 VCCs. Only 82 * age out by not using them to forward packets.
83 one of them gets used. */ 83 * This is because to some LE clients there will be 2 VCCs. Only
84 struct lec_arp_table *mcast_fwds; 84 * one of them gets used.
85 /* With LANEv2 it is possible that BUS (or a special multicast server) 85 */
86 establishes multiple Multicast Forward VCCs to us. This list 86 struct lec_arp_table *mcast_fwds;
87 collects all those VCCs. LANEv1 client has only one item in this 87 /*
88 list. These entries are not aged out. */ 88 * With LANEv2 it is possible that BUS (or a special multicast server)
89 spinlock_t lec_arp_lock; 89 * establishes multiple Multicast Forward VCCs to us. This list
90 struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */ 90 * collects all those VCCs. LANEv1 client has only one item in this
91 struct atm_vcc *lecd; 91 * list. These entries are not aged out.
92 struct timer_list lec_arp_timer; 92 */
93 /* C10 */ 93 spinlock_t lec_arp_lock;
94 unsigned int maximum_unknown_frame_count; 94 struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */
95/* Within the period of time defined by this variable, the client will send 95 struct atm_vcc *lecd;
96 no more than C10 frames to BUS for a given unicast destination. (C11) */ 96 struct timer_list lec_arp_timer; /* C10 */
97 unsigned long max_unknown_frame_time; 97 unsigned int maximum_unknown_frame_count;
98/* If no traffic has been sent in this vcc for this period of time, 98 /*
99 vcc will be torn down (C12)*/ 99 * Within the period of time defined by this variable, the client will send
100 unsigned long vcc_timeout_period; 100 * no more than C10 frames to BUS for a given unicast destination. (C11)
101/* An LE Client MUST not retry an LE_ARP_REQUEST for a 101 */
102 given frame's LAN Destination more than maximum retry count times, 102 unsigned long max_unknown_frame_time;
103 after the first LEC_ARP_REQUEST (C13)*/ 103 /*
104 unsigned short max_retry_count; 104 * If no traffic has been sent in this vcc for this period of time,
105/* Max time the client will maintain an entry in its arp cache in 105 * vcc will be torn down (C12)
106 absence of a verification of that relationship (C17)*/ 106 */
107 unsigned long aging_time; 107 unsigned long vcc_timeout_period;
108/* Max time the client will maintain an entry in cache when 108 /*
109 topology change flag is true (C18) */ 109 * An LE Client MUST not retry an LE_ARP_REQUEST for a
110 unsigned long forward_delay_time; 110 * given frame's LAN Destination more than maximum retry count times,
111/* Topology change flag (C19)*/ 111 * after the first LEC_ARP_REQUEST (C13)
112 int topology_change; 112 */
113/* Max time the client expects an LE_ARP_REQUEST/LE_ARP_RESPONSE 113 unsigned short max_retry_count;
114 cycle to take (C20)*/ 114 /*
115 unsigned long arp_response_time; 115 * Max time the client will maintain an entry in its arp cache in
116/* Time limit ot wait to receive an LE_FLUSH_RESPONSE after the 116 * absence of a verification of that relationship (C17)
117 LE_FLUSH_REQUEST has been sent before taking recover action. (C21)*/ 117 */
118 unsigned long flush_timeout; 118 unsigned long aging_time;
119/* The time since sending a frame to the bus after which the 119 /*
120 LE Client may assume that the frame has been either discarded or 120 * Max time the client will maintain an entry in cache when
121 delivered to the recipient (C22) */ 121 * topology change flag is true (C18)
122 unsigned long path_switching_delay; 122 */
123 unsigned long forward_delay_time; /* Topology change flag (C19) */
124 int topology_change;
125 /*
126 * Max time the client expects an LE_ARP_REQUEST/LE_ARP_RESPONSE
127 * cycle to take (C20)
128 */
129 unsigned long arp_response_time;
130 /*
131 * Time limit ot wait to receive an LE_FLUSH_RESPONSE after the
132 * LE_FLUSH_REQUEST has been sent before taking recover action. (C21)
133 */
134 unsigned long flush_timeout;
135 /* The time since sending a frame to the bus after which the
136 * LE Client may assume that the frame has been either discarded or
137 * delivered to the recipient (C22)
138 */
139 unsigned long path_switching_delay;
123 140
124 u8 *tlvs; /* LANE2: TLVs are new */ 141 u8 *tlvs; /* LANE2: TLVs are new */
125 u32 sizeoftlvs; /* The size of the tlv array in bytes */ 142 u32 sizeoftlvs; /* The size of the tlv array in bytes */
126 int lane_version; /* LANE2 */ 143 int lane_version; /* LANE2 */
127 int itfnum; /* e.g. 2 for lec2, 5 for lec5 */ 144 int itfnum; /* e.g. 2 for lec2, 5 for lec5 */
128 struct lane2_ops *lane2_ops; /* can be NULL for LANE v1 */ 145 struct lane2_ops *lane2_ops; /* can be NULL for LANE v1 */
129 int is_proxy; /* bridge between ATM and Ethernet */ 146 int is_proxy; /* bridge between ATM and Ethernet */
130 int is_trdev; /* Device type, 0 = Ethernet, 1 = TokenRing */ 147 int is_trdev; /* Device type, 0 = Ethernet, 1 = TokenRing */
131}; 148};
132 149
133struct lec_vcc_priv { 150struct lec_vcc_priv {
134 void (*old_pop)(struct atm_vcc *vcc, struct sk_buff *skb); 151 void (*old_pop) (struct atm_vcc *vcc, struct sk_buff *skb);
135 int xoff; 152 int xoff;
136}; 153};
137 154
138#define LEC_VCC_PRIV(vcc) ((struct lec_vcc_priv *)((vcc)->user_back)) 155#define LEC_VCC_PRIV(vcc) ((struct lec_vcc_priv *)((vcc)->user_back))
139 156
140#endif /* _LEC_H_ */ 157#endif /* _LEC_H_ */
141
diff --git a/net/atm/lec_arpc.h b/net/atm/lec_arpc.h
index 397448094648..0230ca148c77 100644
--- a/net/atm/lec_arpc.h
+++ b/net/atm/lec_arpc.h
@@ -1,92 +1,98 @@
1/* 1/*
2 * Lec arp cache 2 * Lec arp cache
3 * Marko Kiiskila mkiiskila@yahoo.com
4 * 3 *
4 * Marko Kiiskila <mkiiskila@yahoo.com>
5 */ 5 */
6#ifndef _LEC_ARP_H 6#ifndef _LEC_ARP_H_
7#define _LEC_ARP_H 7#define _LEC_ARP_H_
8#include <linux/atm.h> 8#include <linux/atm.h>
9#include <linux/atmdev.h> 9#include <linux/atmdev.h>
10#include <linux/if_ether.h> 10#include <linux/if_ether.h>
11#include <linux/atmlec.h> 11#include <linux/atmlec.h>
12 12
13struct lec_arp_table { 13struct lec_arp_table {
14 struct lec_arp_table *next; /* Linked entry list */ 14 struct lec_arp_table *next; /* Linked entry list */
15 unsigned char atm_addr[ATM_ESA_LEN]; /* Atm address */ 15 unsigned char atm_addr[ATM_ESA_LEN]; /* Atm address */
16 unsigned char mac_addr[ETH_ALEN]; /* Mac address */ 16 unsigned char mac_addr[ETH_ALEN]; /* Mac address */
17 int is_rdesc; /* Mac address is a route descriptor */ 17 int is_rdesc; /* Mac address is a route descriptor */
18 struct atm_vcc *vcc; /* Vcc this entry is attached */ 18 struct atm_vcc *vcc; /* Vcc this entry is attached */
19 struct atm_vcc *recv_vcc; /* Vcc we receive data from */ 19 struct atm_vcc *recv_vcc; /* Vcc we receive data from */
20 void (*old_push)(struct atm_vcc *vcc,struct sk_buff *skb);
21 /* Push that leads to daemon */
22 void (*old_recv_push)(struct atm_vcc *vcc, struct sk_buff *skb);
23 /* Push that leads to daemon */
24 void (*old_close)(struct atm_vcc *vcc);
25 /* We want to see when this
26 * vcc gets closed */
27 unsigned long last_used; /* For expiry */
28 unsigned long timestamp; /* Used for various timestamping
29 * things:
30 * 1. FLUSH started
31 * (status=ESI_FLUSH_PENDING)
32 * 2. Counting to
33 * max_unknown_frame_time
34 * (status=ESI_ARP_PENDING||
35 * status=ESI_VC_PENDING)
36 */
37 unsigned char no_tries; /* No of times arp retry has been
38 tried */
39 unsigned char status; /* Status of this entry */
40 unsigned short flags; /* Flags for this entry */
41 unsigned short packets_flooded; /* Data packets flooded */
42 unsigned long flush_tran_id; /* Transaction id in flush protocol */
43 struct timer_list timer; /* Arping timer */
44 struct lec_priv *priv; /* Pointer back */
45 20
46 u8 *tlvs; /* LANE2: Each MAC address can have TLVs */ 21 void (*old_push) (struct atm_vcc *vcc, struct sk_buff *skb);
47 u32 sizeoftlvs; /* associated with it. sizeoftlvs tells the */ 22 /* Push that leads to daemon */
48 /* the length of the tlvs array */ 23
49 struct sk_buff_head tx_wait; /* wait queue for outgoing packets */ 24 void (*old_recv_push) (struct atm_vcc *vcc, struct sk_buff *skb);
25 /* Push that leads to daemon */
26
27 void (*old_close) (struct atm_vcc *vcc);
28 /* We want to see when this vcc gets closed */
29
30 unsigned long last_used; /* For expiry */
31 unsigned long timestamp; /* Used for various timestamping things:
32 * 1. FLUSH started
33 * (status=ESI_FLUSH_PENDING)
34 * 2. Counting to
35 * max_unknown_frame_time
36 * (status=ESI_ARP_PENDING||
37 * status=ESI_VC_PENDING)
38 */
39 unsigned char no_tries; /* No of times arp retry has been tried */
40 unsigned char status; /* Status of this entry */
41 unsigned short flags; /* Flags for this entry */
42 unsigned short packets_flooded; /* Data packets flooded */
43 unsigned long flush_tran_id; /* Transaction id in flush protocol */
44 struct timer_list timer; /* Arping timer */
45 struct lec_priv *priv; /* Pointer back */
46 u8 *tlvs;
47 u32 sizeoftlvs; /*
48 * LANE2: Each MAC address can have TLVs
49 * associated with it. sizeoftlvs tells the
50 * the length of the tlvs array
51 */
52 struct sk_buff_head tx_wait; /* wait queue for outgoing packets */
50}; 53};
51 54
52struct tlv { /* LANE2: Template tlv struct for accessing */ 55/*
53 /* the tlvs in the lec_arp_table->tlvs array*/ 56 * LANE2: Template tlv struct for accessing
54 u32 type; 57 * the tlvs in the lec_arp_table->tlvs array
55 u8 length; 58 */
56 u8 value[255]; 59struct tlv {
60 u32 type;
61 u8 length;
62 u8 value[255];
57}; 63};
58 64
59/* Status fields */ 65/* Status fields */
60#define ESI_UNKNOWN 0 /* 66#define ESI_UNKNOWN 0 /*
61 * Next packet sent to this mac address 67 * Next packet sent to this mac address
62 * causes ARP-request to be sent 68 * causes ARP-request to be sent
63 */ 69 */
64#define ESI_ARP_PENDING 1 /* 70#define ESI_ARP_PENDING 1 /*
65 * There is no ATM address associated with this 71 * There is no ATM address associated with this
66 * 48-bit address. The LE-ARP protocol is in 72 * 48-bit address. The LE-ARP protocol is in
67 * progress. 73 * progress.
68 */ 74 */
69#define ESI_VC_PENDING 2 /* 75#define ESI_VC_PENDING 2 /*
70 * There is a valid ATM address associated with 76 * There is a valid ATM address associated with
71 * this 48-bit address but there is no VC set 77 * this 48-bit address but there is no VC set
72 * up to that ATM address. The signaling 78 * up to that ATM address. The signaling
73 * protocol is in process. 79 * protocol is in process.
74 */ 80 */
75#define ESI_FLUSH_PENDING 4 /* 81#define ESI_FLUSH_PENDING 4 /*
76 * The LEC has been notified of the FLUSH_START 82 * The LEC has been notified of the FLUSH_START
77 * status and it is assumed that the flush 83 * status and it is assumed that the flush
78 * protocol is in process. 84 * protocol is in process.
79 */ 85 */
80#define ESI_FORWARD_DIRECT 5 /* 86#define ESI_FORWARD_DIRECT 5 /*
81 * Either the Path Switching Delay (C22) has 87 * Either the Path Switching Delay (C22) has
82 * elapsed or the LEC has notified the Mapping 88 * elapsed or the LEC has notified the Mapping
83 * that the flush protocol has completed. In 89 * that the flush protocol has completed. In
84 * either case, it is safe to forward packets 90 * either case, it is safe to forward packets
85 * to this address via the data direct VC. 91 * to this address via the data direct VC.
86 */ 92 */
87 93
88/* Flag values */ 94/* Flag values */
89#define LEC_REMOTE_FLAG 0x0001 95#define LEC_REMOTE_FLAG 0x0001
90#define LEC_PERMANENT_FLAG 0x0002 96#define LEC_PERMANENT_FLAG 0x0002
91 97
92#endif 98#endif /* _LEC_ARP_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 08:32:32 -0500