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34 #ifndef RTE_ETH_BOND_ALB_H_
35 #define RTE_ETH_BOND_ALB_H_
37 #include <rte_ether.h>
40 #define ALB_HASH_TABLE_SIZE 256
41 #define ALB_NULL_INDEX 0xFFFFFFFF
44 /** ARP data of single client */
45 struct ether_addr app_mac;
46 /**< MAC address of application running DPDK */
48 /**< IP address of application running DPDK */
49 struct ether_addr cli_mac;
50 /**< Client MAC address */
52 /**< Client IP address */
55 /**< Index of slave on which we connect with that client */
57 /**< Flag indicating if entry in client table is currently used */
59 /**< Flag indicating if we need to send update to this client on next tx */
61 struct vlan_hdr vlan[2];
62 /**< Content of vlan headers */
64 /**< Number of nested vlan headers */
67 struct mode_alb_private {
68 struct client_data client_table[ALB_HASH_TABLE_SIZE];
69 /**< Hash table storing ARP data of every client connected */
70 struct rte_mempool *mempool;
71 /**< Mempool for creating ARP update packets */
73 /**< Flag indicating if we need to send update to any client on next tx */
75 /**< Index of last used slave in client table */
80 * ALB mode initialization.
82 * @param bond_dev Pointer to bonding device.
85 * Error code - 0 on success.
88 bond_mode_alb_enable(struct rte_eth_dev *bond_dev);
91 * Function handles ARP packet reception. If received ARP request, it is
92 * forwarded to application without changes. If it is ARP reply, client table
95 * @param eth_h ETH header of received packet.
96 * @param offset Vlan header offset.
97 * @param internals Bonding data.
100 bond_mode_alb_arp_recv(struct ether_hdr *eth_h, uint16_t offset,
101 struct bond_dev_private *internals);
104 * Function handles ARP packet transmission. It also decides on which slave
105 * send that packet. If packet is ARP Request, it is send on primary slave.
106 * If it is ARP Reply, it is send on slave stored in client table for that
107 * connection. On Reply function also updates data in client table.
109 * @param eth_h ETH header of transmitted packet.
110 * @param offset Vlan header offset.
111 * @param internals Bonding data.
114 * Index of slave on which packet should be sent.
117 bond_mode_alb_arp_xmit(struct ether_hdr *eth_h, uint16_t offset,
118 struct bond_dev_private *internals);
121 * Function fills packet with ARP data from client_info.
123 * @param client_info Data of client to which packet is sent.
124 * @param pkt Pointer to packet which is sent.
125 * @param internals Bonding data.
128 * Index of slawe on which packet should be sent.
131 bond_mode_alb_arp_upd(struct client_data *client_info,
132 struct rte_mbuf *pkt, struct bond_dev_private *internals);
135 * Function updates slave indexes of active connections.
137 * @param bond_dev Pointer to bonded device struct.
140 bond_mode_alb_client_list_upd(struct rte_eth_dev *bond_dev);
142 #endif /* RTE_ETH_BOND_ALB_H_ */