7be78d0279
The tool comes from https://github.com/jsoref Signed-off-by: Josh Soref <jsoref@gmail.com> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2015 Intel Corporation
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*/
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#ifndef RTE_ETH_BOND_ALB_H_
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#define RTE_ETH_BOND_ALB_H_
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#include <rte_ether.h>
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#include <rte_arp.h>
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#define ALB_HASH_TABLE_SIZE 256
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#define ALB_NULL_INDEX 0xFFFFFFFF
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struct client_data {
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/** ARP data of single client */
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struct rte_ether_addr app_mac;
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/**< MAC address of application running DPDK */
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uint32_t app_ip;
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/**< IP address of application running DPDK */
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struct rte_ether_addr cli_mac;
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/**< Client MAC address */
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uint32_t cli_ip;
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/**< Client IP address */
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uint16_t slave_idx;
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/**< Index of slave on which we connect with that client */
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uint8_t in_use;
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/**< Flag indicating if entry in client table is currently used */
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uint8_t ntt;
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/**< Flag indicating if we need to send update to this client on next tx */
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struct rte_vlan_hdr vlan[2];
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/**< Content of vlan headers */
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uint8_t vlan_count;
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/**< Number of nested vlan headers */
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};
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struct mode_alb_private {
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struct client_data client_table[ALB_HASH_TABLE_SIZE];
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/**< Hash table storing ARP data of every client connected */
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struct rte_mempool *mempool;
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/**< Mempool for creating ARP update packets */
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uint8_t ntt;
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/**< Flag indicating if we need to send update to any client on next tx */
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uint32_t last_slave;
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/**< Index of last used slave in client table */
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rte_spinlock_t lock;
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};
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/**
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* ALB mode initialization.
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*
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* @param bond_dev Pointer to bonding device.
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*
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* @return
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* Error code - 0 on success.
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*/
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int
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bond_mode_alb_enable(struct rte_eth_dev *bond_dev);
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/**
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* Function handles ARP packet reception. If received ARP request, it is
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* forwarded to application without changes. If it is ARP reply, client table
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* is updated.
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*
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* @param eth_h ETH header of received packet.
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* @param offset Vlan header offset.
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* @param internals Bonding data.
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*/
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void
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bond_mode_alb_arp_recv(struct rte_ether_hdr *eth_h, uint16_t offset,
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struct bond_dev_private *internals);
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/**
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* Function handles ARP packet transmission. It also decides on which slave
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* send that packet. If packet is ARP Request, it is send on primary slave.
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* If it is ARP Reply, it is send on slave stored in client table for that
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* connection. On Reply function also updates data in client table.
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*
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* @param eth_h ETH header of transmitted packet.
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* @param offset Vlan header offset.
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* @param internals Bonding data.
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*
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* @return
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* Index of slave on which packet should be sent.
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*/
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uint16_t
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bond_mode_alb_arp_xmit(struct rte_ether_hdr *eth_h, uint16_t offset,
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struct bond_dev_private *internals);
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/**
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* Function fills packet with ARP data from client_info.
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*
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* @param client_info Data of client to which packet is sent.
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* @param pkt Pointer to packet which is sent.
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* @param internals Bonding data.
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*
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* @return
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* Index of slave on which packet should be sent.
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*/
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uint16_t
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bond_mode_alb_arp_upd(struct client_data *client_info,
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struct rte_mbuf *pkt, struct bond_dev_private *internals);
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/**
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* Function updates slave indexes of active connections.
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*
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* @param bond_dev Pointer to bonded device struct.
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*/
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void
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bond_mode_alb_client_list_upd(struct rte_eth_dev *bond_dev);
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#endif /* RTE_ETH_BOND_ALB_H_ */
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