diff options
Diffstat (limited to 'drivers/net/bonding/bond_alb.h')
| -rw-r--r-- | drivers/net/bonding/bond_alb.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_alb.h b/drivers/net/bonding/bond_alb.h new file mode 100644 index 00000000000..e4091cd8d65 --- /dev/null +++ b/drivers/net/bonding/bond_alb.h @@ -0,0 +1,141 @@ +/* + * Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * + * Changes: + * + * 2003/08/06 - Amir Noam <amir.noam at intel dot com> + * - Add support for setting bond's MAC address with special + * handling required for ALB/TLB. + * + * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com> + * - Code cleanup and style changes + */ + +#ifndef __BOND_ALB_H__ +#define __BOND_ALB_H__ + +#include <linux/if_ether.h> + +struct bonding; +struct slave; + +#define BOND_ALB_INFO(bond) ((bond)->alb_info) +#define SLAVE_TLB_INFO(slave) ((slave)->tlb_info) + +struct tlb_client_info { + struct slave *tx_slave; /* A pointer to slave used for transmiting + * packets to a Client that the Hash function + * gave this entry index. + */ + u32 tx_bytes; /* Each Client acumulates the BytesTx that + * were tranmitted to it, and after each + * CallBack the LoadHistory is devided + * by the balance interval + */ + u32 load_history; /* This field contains the amount of Bytes + * that were transmitted to this client by + * the server on the previous balance + * interval in Bps. + */ + u32 next; /* The next Hash table entry index, assigned + * to use the same adapter for transmit. + */ + u32 prev; /* The previous Hash table entry index, + * assigned to use the same + */ +}; + +/* ------------------------------------------------------------------------- + * struct rlb_client_info contains all info related to a specific rx client + * connection. This is the Clients Hash Table entry struct + * ------------------------------------------------------------------------- + */ +struct rlb_client_info { + u32 ip_src; /* the server IP address */ + u32 ip_dst; /* the client IP address */ + u8 mac_dst[ETH_ALEN]; /* the client MAC address */ + u32 next; /* The next Hash table entry index */ + u32 prev; /* The previous Hash table entry 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 */ + u8 tag; /* flag - need to tag skb */ + unsigned short vlan_id; /* VLAN tag associated with IP address */ +}; + +struct tlb_slave_info { + u32 head; /* Index to the head of the bi-directional clients + * hash table entries list. The entries in the list + * are the entries that were assigned to use this + * slave for transmit. + */ + u32 load; /* Each slave sums the loadHistory of all clients + * assigned to it + */ +}; + +struct alb_bond_info { + struct timer_list alb_timer; + struct tlb_client_info *tx_hashtbl; /* Dynamically allocated */ + spinlock_t tx_hashtbl_lock; + u32 unbalanced_load; + int tx_rebalance_counter; + int lp_counter; + /* -------- rlb parameters -------- */ + int rlb_enabled; + struct packet_type rlb_pkt_type; + struct rlb_client_info *rx_hashtbl; /* Receive hash table */ + spinlock_t rx_hashtbl_lock; + u32 rx_hashtbl_head; + u8 rx_ntt; /* flag - need to transmit + * to all rx clients + */ + struct slave *next_rx_slave;/* next slave to be assigned + * to a new rx client for + */ + u32 rlb_interval_counter; + u8 primary_is_promisc; /* boolean */ + u32 rlb_promisc_timeout_counter;/* counts primary + * promiscuity time + */ + u32 rlb_update_delay_counter; + u32 rlb_update_retry_counter;/* counter of retries + * of client update + */ + u8 rlb_rebalance; /* flag - indicates that the + * rx traffic should be + * rebalanced + */ + struct vlan_entry *current_alb_vlan; +}; + +int bond_alb_initialize(struct bonding *bond, int rlb_enabled); +void bond_alb_deinitialize(struct bonding *bond); +int bond_alb_init_slave(struct bonding *bond, struct slave *slave); +void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave); +void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char link); +void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave); +int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev); +void bond_alb_monitor(struct bonding *bond); +int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr); +void bond_alb_clear_vlan(struct bonding *bond, unsigned short vlan_id); +#endif /* __BOND_ALB_H__ */ + |