^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef _NET_BOND_ALB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define _NET_BOND_ALB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/if_ether.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) struct bonding;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct slave;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define BOND_ALB_INFO(bond) ((bond)->alb_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define SLAVE_TLB_INFO(slave) ((slave)->tlb_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define ALB_TIMER_TICKS_PER_SEC 10 /* should be a divisor of HZ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define BOND_TLB_REBALANCE_INTERVAL 10 /* In seconds, periodic re-balancing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Used for division - never set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * to zero !!!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define BOND_ALB_DEFAULT_LP_INTERVAL 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define BOND_ALB_LP_INTERVAL(bond) (bond->params.lp_interval) /* In seconds, periodic send of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * learning packets to the switch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define BOND_TLB_REBALANCE_TICKS (BOND_TLB_REBALANCE_INTERVAL \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * ALB_TIMER_TICKS_PER_SEC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define BOND_ALB_LP_TICKS(bond) (BOND_ALB_LP_INTERVAL(bond) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * ALB_TIMER_TICKS_PER_SEC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define TLB_HASH_TABLE_SIZE 256 /* The size of the clients hash table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * Note that this value MUST NOT be smaller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * because the key hash table is BYTE wide !
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define TLB_NULL_INDEX 0xffffffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* rlb defs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define RLB_HASH_TABLE_SIZE 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define RLB_NULL_INDEX 0xffffffff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define RLB_UPDATE_DELAY (2*ALB_TIMER_TICKS_PER_SEC) /* 2 seconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define RLB_ARP_BURST_SIZE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define RLB_UPDATE_RETRY 3 /* 3-ticks - must be smaller than the rlb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * rebalance interval (5 min).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /* RLB_PROMISC_TIMEOUT = 10 sec equals the time that the current slave is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * promiscuous after failover
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define RLB_PROMISC_TIMEOUT (10*ALB_TIMER_TICKS_PER_SEC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct tlb_client_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct slave *tx_slave; /* A pointer to slave used for transmiting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * packets to a Client that the Hash function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * gave this entry index.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) u32 tx_bytes; /* Each Client accumulates the BytesTx that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * were transmitted to it, and after each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * CallBack the LoadHistory is divided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * by the balance interval
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) u32 load_history; /* This field contains the amount of Bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * that were transmitted to this client by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * the server on the previous balance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * interval in Bps.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u32 next; /* The next Hash table entry index, assigned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * to use the same adapter for transmit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) u32 prev; /* The previous Hash table entry index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * assigned to use the same
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* -------------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * struct rlb_client_info contains all info related to a specific rx client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * connection. This is the Clients Hash Table entry struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * Note that this is not a proper hash table; if a new client's IP address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * hash collides with an existing client entry, the old entry is replaced.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * There is a linked list (linked by the used_next and used_prev members)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * linking all the used entries of the hash table. This allows updating
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * all the clients without walking over all the unused elements of the table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * There are also linked lists of entries with identical hash(ip_src). These
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * allow cleaning up the table from ip_src<->mac_src associations that have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * become outdated and would cause sending out invalid ARP updates to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * network. These are linked by the (src_next and src_prev members).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * -------------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct rlb_client_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) __be32 ip_src; /* the server IP address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) __be32 ip_dst; /* the client IP address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) u8 mac_src[ETH_ALEN]; /* the server MAC address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) u8 mac_dst[ETH_ALEN]; /* the client MAC address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /* list of used hash table entries, starting at rx_hashtbl_used_head */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) u32 used_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) u32 used_prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) /* ip_src based hashing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) u32 src_next; /* next entry with same hash(ip_src) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) u32 src_prev; /* prev entry with same hash(ip_src) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) u32 src_first; /* first entry with hash(ip_src) == this entry's index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) u8 assigned; /* checking whether this entry is assigned */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) u8 ntt; /* flag - need to transmit client info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct slave *slave; /* the slave assigned to this client */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) unsigned short vlan_id; /* VLAN tag associated with IP address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct tlb_slave_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) u32 head; /* Index to the head of the bi-directional clients
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * hash table entries list. The entries in the list
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * are the entries that were assigned to use this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * slave for transmit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) u32 load; /* Each slave sums the loadHistory of all clients
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * assigned to it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct alb_bond_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) u32 unbalanced_load;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) atomic_t tx_rebalance_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) int lp_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /* -------- rlb parameters -------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) int rlb_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct rlb_client_info *rx_hashtbl; /* Receive hash table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) u32 rx_hashtbl_used_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) u8 rx_ntt; /* flag - need to transmit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * to all rx clients
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) struct slave *rx_slave;/* last slave to xmit from */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) u8 primary_is_promisc; /* boolean */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) u32 rlb_promisc_timeout_counter;/* counts primary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * promiscuity time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) u32 rlb_update_delay_counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) u32 rlb_update_retry_counter;/* counter of retries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * of client update
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) u8 rlb_rebalance; /* flag - indicates that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * rx traffic should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * rebalanced
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) int bond_alb_initialize(struct bonding *bond, int rlb_enabled);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) void bond_alb_deinitialize(struct bonding *bond);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) int bond_alb_init_slave(struct bonding *bond, struct slave *slave);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) int bond_tlb_xmit(struct sk_buff *skb, struct net_device *bond_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct slave *bond_xmit_alb_slave_get(struct bonding *bond,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct slave *bond_xmit_tlb_slave_get(struct bonding *bond,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) void bond_alb_monitor(struct work_struct *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) void bond_alb_clear_vlan(struct bonding *bond, unsigned short vlan_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #endif /* _NET_BOND_ALB_H */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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