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@@ -1,14 +1,13 @@
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/*
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- *
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* Lan Emulation client header file
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*
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- * Marko Kiiskila mkiiskila@yahoo.com
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- *
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+ * Marko Kiiskila <mkiiskila@yahoo.com>
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*/
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#ifndef _LEC_H_
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#define _LEC_H_
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+#include <linux/config.h>
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#include <linux/atmdev.h>
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#include <linux/netdevice.h>
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#include <linux/atmlec.h>
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@@ -16,18 +15,18 @@
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#define LEC_HEADER_LEN 16
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struct lecdatahdr_8023 {
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- unsigned short le_header;
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- unsigned char h_dest[ETH_ALEN];
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- unsigned char h_source[ETH_ALEN];
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- unsigned short h_type;
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+ unsigned short le_header;
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+ unsigned char h_dest[ETH_ALEN];
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+ unsigned char h_source[ETH_ALEN];
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+ unsigned short h_type;
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};
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struct lecdatahdr_8025 {
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- unsigned short le_header;
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- unsigned char ac_pad;
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- unsigned char fc;
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- unsigned char h_dest[ETH_ALEN];
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- unsigned char h_source[ETH_ALEN];
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+ unsigned short le_header;
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+ unsigned char ac_pad;
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+ unsigned char fc;
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+ unsigned char h_dest[ETH_ALEN];
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+ unsigned char h_source[ETH_ALEN];
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};
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#define LEC_MINIMUM_8023_SIZE 62
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@@ -44,17 +43,18 @@ struct lecdatahdr_8025 {
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*
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*/
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struct lane2_ops {
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- int (*resolve)(struct net_device *dev, u8 *dst_mac, int force,
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- u8 **tlvs, u32 *sizeoftlvs);
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- int (*associate_req)(struct net_device *dev, u8 *lan_dst,
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- u8 *tlvs, u32 sizeoftlvs);
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- void (*associate_indicator)(struct net_device *dev, u8 *mac_addr,
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- u8 *tlvs, u32 sizeoftlvs);
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+ int (*resolve) (struct net_device *dev, u8 *dst_mac, int force,
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+ u8 **tlvs, u32 *sizeoftlvs);
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+ int (*associate_req) (struct net_device *dev, u8 *lan_dst,
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+ u8 *tlvs, u32 sizeoftlvs);
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+ void (*associate_indicator) (struct net_device *dev, u8 *mac_addr,
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+ u8 *tlvs, u32 sizeoftlvs);
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};
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/*
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* ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
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* frames.
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+ *
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* 1. Dix Ethernet EtherType frames encoded by placing EtherType
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* field in h_type field. Data follows immediatelly after header.
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* 2. LLC Data frames whose total length, including LLC field and data,
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@@ -70,72 +70,88 @@ struct lane2_ops {
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#define LEC_ARP_TABLE_SIZE 16
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struct lec_priv {
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- struct net_device_stats stats;
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- unsigned short lecid; /* Lecid of this client */
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- struct lec_arp_table *lec_arp_empty_ones;
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- /* Used for storing VCC's that don't have a MAC address attached yet */
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- struct lec_arp_table *lec_arp_tables[LEC_ARP_TABLE_SIZE];
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- /* Actual LE ARP table */
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- struct lec_arp_table *lec_no_forward;
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- /* Used for storing VCC's (and forward packets from) which are to
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- age out by not using them to forward packets.
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- This is because to some LE clients there will be 2 VCCs. Only
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- one of them gets used. */
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- struct lec_arp_table *mcast_fwds;
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- /* With LANEv2 it is possible that BUS (or a special multicast server)
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- establishes multiple Multicast Forward VCCs to us. This list
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- collects all those VCCs. LANEv1 client has only one item in this
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- list. These entries are not aged out. */
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- spinlock_t lec_arp_lock;
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- struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */
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- struct atm_vcc *lecd;
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- struct timer_list lec_arp_timer;
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- /* C10 */
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- unsigned int maximum_unknown_frame_count;
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-/* Within the period of time defined by this variable, the client will send
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- no more than C10 frames to BUS for a given unicast destination. (C11) */
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- unsigned long max_unknown_frame_time;
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-/* If no traffic has been sent in this vcc for this period of time,
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- vcc will be torn down (C12)*/
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- unsigned long vcc_timeout_period;
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-/* An LE Client MUST not retry an LE_ARP_REQUEST for a
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- given frame's LAN Destination more than maximum retry count times,
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- after the first LEC_ARP_REQUEST (C13)*/
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- unsigned short max_retry_count;
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-/* Max time the client will maintain an entry in its arp cache in
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- absence of a verification of that relationship (C17)*/
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- unsigned long aging_time;
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-/* Max time the client will maintain an entry in cache when
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- topology change flag is true (C18) */
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- unsigned long forward_delay_time;
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-/* Topology change flag (C19)*/
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- int topology_change;
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-/* Max time the client expects an LE_ARP_REQUEST/LE_ARP_RESPONSE
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- cycle to take (C20)*/
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- unsigned long arp_response_time;
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-/* Time limit ot wait to receive an LE_FLUSH_RESPONSE after the
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- LE_FLUSH_REQUEST has been sent before taking recover action. (C21)*/
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- unsigned long flush_timeout;
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-/* The time since sending a frame to the bus after which the
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- LE Client may assume that the frame has been either discarded or
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- delivered to the recipient (C22) */
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- unsigned long path_switching_delay;
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+ struct net_device_stats stats;
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+ unsigned short lecid; /* Lecid of this client */
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+ struct hlist_head lec_arp_empty_ones;
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+ /* Used for storing VCC's that don't have a MAC address attached yet */
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+ struct hlist_head lec_arp_tables[LEC_ARP_TABLE_SIZE];
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+ /* Actual LE ARP table */
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+ struct hlist_head lec_no_forward;
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+ /*
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+ * Used for storing VCC's (and forward packets from) which are to
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+ * age out by not using them to forward packets.
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+ * This is because to some LE clients there will be 2 VCCs. Only
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+ * one of them gets used.
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+ */
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+ struct hlist_head mcast_fwds;
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+ /*
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+ * With LANEv2 it is possible that BUS (or a special multicast server)
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+ * establishes multiple Multicast Forward VCCs to us. This list
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+ * collects all those VCCs. LANEv1 client has only one item in this
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+ * list. These entries are not aged out.
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+ */
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+ spinlock_t lec_arp_lock;
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+ struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */
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+ struct atm_vcc *lecd;
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+ struct work_struct lec_arp_work; /* C10 */
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+ unsigned int maximum_unknown_frame_count;
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+ /*
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+ * Within the period of time defined by this variable, the client will send
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+ * no more than C10 frames to BUS for a given unicast destination. (C11)
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+ */
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+ unsigned long max_unknown_frame_time;
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+ /*
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+ * If no traffic has been sent in this vcc for this period of time,
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+ * vcc will be torn down (C12)
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+ */
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+ unsigned long vcc_timeout_period;
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+ /*
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+ * An LE Client MUST not retry an LE_ARP_REQUEST for a
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+ * given frame's LAN Destination more than maximum retry count times,
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+ * after the first LEC_ARP_REQUEST (C13)
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+ */
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+ unsigned short max_retry_count;
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+ /*
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+ * Max time the client will maintain an entry in its arp cache in
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+ * absence of a verification of that relationship (C17)
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+ */
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+ unsigned long aging_time;
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+ /*
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+ * Max time the client will maintain an entry in cache when
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+ * topology change flag is true (C18)
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+ */
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+ unsigned long forward_delay_time; /* Topology change flag (C19) */
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+ int topology_change;
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+ /*
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+ * Max time the client expects an LE_ARP_REQUEST/LE_ARP_RESPONSE
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+ * cycle to take (C20)
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+ */
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+ unsigned long arp_response_time;
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+ /*
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+ * Time limit ot wait to receive an LE_FLUSH_RESPONSE after the
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+ * LE_FLUSH_REQUEST has been sent before taking recover action. (C21)
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+ */
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+ unsigned long flush_timeout;
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+ /* The time since sending a frame to the bus after which the
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+ * LE Client may assume that the frame has been either discarded or
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+ * delivered to the recipient (C22)
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+ */
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+ unsigned long path_switching_delay;
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- u8 *tlvs; /* LANE2: TLVs are new */
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- u32 sizeoftlvs; /* The size of the tlv array in bytes */
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- int lane_version; /* LANE2 */
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- int itfnum; /* e.g. 2 for lec2, 5 for lec5 */
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- struct lane2_ops *lane2_ops; /* can be NULL for LANE v1 */
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- int is_proxy; /* bridge between ATM and Ethernet */
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- int is_trdev; /* Device type, 0 = Ethernet, 1 = TokenRing */
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+ u8 *tlvs; /* LANE2: TLVs are new */
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+ u32 sizeoftlvs; /* The size of the tlv array in bytes */
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+ int lane_version; /* LANE2 */
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+ int itfnum; /* e.g. 2 for lec2, 5 for lec5 */
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+ struct lane2_ops *lane2_ops; /* can be NULL for LANE v1 */
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+ int is_proxy; /* bridge between ATM and Ethernet */
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+ int is_trdev; /* Device type, 0 = Ethernet, 1 = TokenRing */
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};
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struct lec_vcc_priv {
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- void (*old_pop)(struct atm_vcc *vcc, struct sk_buff *skb);
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+ void (*old_pop) (struct atm_vcc *vcc, struct sk_buff *skb);
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int xoff;
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};
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#define LEC_VCC_PRIV(vcc) ((struct lec_vcc_priv *)((vcc)->user_back))
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-#endif /* _LEC_H_ */
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-
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+#endif /* _LEC_H_ */
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