#define ALB_TIMER_TICKS_PER_SEC 10/* should be a divisor of HZ */ #define BOND_TLB_REBALANCE_INTERVAL 10/* In seconds, periodic re-balancing. *Usedfordivision-neverset *tozero!!!
*/ #define BOND_ALB_DEFAULT_LP_INTERVAL 1 #define BOND_ALB_LP_INTERVAL(bond) (bond->params.lp_interval) /* In seconds, periodic send of *learningpacketstotheswitch
*/
#define TLB_HASH_TABLE_SIZE 256/* The size of the clients hash table. *NotethatthisvalueMUSTNOTbesmaller *becausethekeyhashtableisBYTEwide!
*/
#define TLB_NULL_INDEX 0xffffffff
/* rlb defs */ #define RLB_HASH_TABLE_SIZE 256 #define RLB_NULL_INDEX 0xffffffff #define RLB_UPDATE_DELAY (2*ALB_TIMER_TICKS_PER_SEC) /* 2 seconds */ #define RLB_ARP_BURST_SIZE 2 #define RLB_UPDATE_RETRY 3/* 3-ticks - must be smaller than the rlb *rebalanceinterval(5min).
*/ /* RLB_PROMISC_TIMEOUT = 10 sec equals the time that the current slave is *promiscuousafterfailover
*/ #define RLB_PROMISC_TIMEOUT (10*ALB_TIMER_TICKS_PER_SEC)
struct tlb_client_info { struct slave *tx_slave; /* A pointer to slave used for transmitting *packetstoaClientthattheHashfunction *gavethisentryindex.
*/
u32 tx_bytes; /* Each Client accumulates the BytesTx that *weretransmittedtoit,andaftereach *CallBacktheLoadHistoryisdivided *bythebalanceinterval
*/
u32 load_history; /* This field contains the amount of Bytes *thatweretransmittedtothisclientby *theserveronthepreviousbalance *intervalinBps.
*/
u32 next; /* The next Hash table entry index, assigned *tousethesameadapterfortransmit.
*/
u32 prev; /* The previous Hash table entry index, *assignedtousethesame
*/
};
/* ------------------------------------------------------------------------- *structrlb_client_infocontainsallinforelatedtoaspecificrxclient *connection.ThisistheClientsHashTableentrystruct. *Notethatthisisnotaproperhashtable;ifanewclient'sIPaddress *hashcollideswithanexistingcliententry,theoldentryisreplaced. * *Thereisalinkedlist(linkedbytheused_nextandused_prevmembers) *linkingalltheusedentriesofthehashtable.Thisallowsupdating *alltheclientswithoutwalkingoveralltheunusedelementsofthetable. * *Therearealsolinkedlistsofentrieswithidenticalhash(ip_src).These *allowcleaningupthetablefromip_src<->mac_srcassociationsthathave *becomeoutdatedandwouldcausesendingoutinvalidARPupdatestothe *network.Thesearelinkedbythe(src_nextandsrc_prevmembers). *-------------------------------------------------------------------------
*/ struct rlb_client_info {
__be32 ip_src; /* the server IP address */
__be32 ip_dst; /* the client IP address */
u8 mac_src[ETH_ALEN]; /* the server MAC address */
u8 mac_dst[ETH_ALEN]; /* the client MAC address */
/* list of used hash table entries, starting at rx_hashtbl_used_head */
u32 used_next;
u32 used_prev;
/* ip_src based hashing */
u32 src_next; /* next entry with same hash(ip_src) */
u32 src_prev; /* prev entry with same hash(ip_src) */
u32 src_first; /* first entry with hash(ip_src) == this entry's index */
u8 assigned; /* checking whether this entry is assigned */
u8 ntt; /* flag - need to transmit client info */ struct slave *slave; /* the slave assigned to this client */ unsignedshort vlan_id; /* VLAN tag associated with IP address */
};
struct tlb_slave_info {
u32 head; /* Index to the head of the bi-directional clients *hashtableentrieslist.Theentriesinthelist *aretheentriesthatwereassignedtousethis *slavefortransmit.
*/
u32 load; /* Each slave sums the loadHistory of all clients *assignedtoit
*/
};
struct alb_bond_info { struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */
u32 unbalanced_load;
atomic_t tx_rebalance_counter; int lp_counter; /* -------- rlb parameters -------- */ int rlb_enabled; struct rlb_client_info *rx_hashtbl; /* Receive hash table */
u32 rx_hashtbl_used_head;
u8 rx_ntt; /* flag - need to transmit *toallrxclients
*/ struct slave *rx_slave;/* last slave to xmit from */
u8 primary_is_promisc; /* boolean */
u32 rlb_promisc_timeout_counter;/* counts primary *promiscuitytime
*/
u32 rlb_update_delay_counter;
u32 rlb_update_retry_counter;/* counter of retries *ofclientupdate
*/
u8 rlb_rebalance; /* flag - indicates that the *rxtrafficshouldbe *rebalanced
*/
};
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