X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fnet%2Fbonding%2Frte_eth_bond_alb.h;fp=drivers%2Fnet%2Fbonding%2Frte_eth_bond_alb.h;h=fd7c3aeb4e3469694d5c6f0b61f0514030a0c709;hb=97f17497d162afdb82c8704bf097f0fee3724b2e;hp=0000000000000000000000000000000000000000;hpb=e04be89c2409570e0055b2cda60bd11395bb93b0;p=deb_dpdk.git

diff --git a/drivers/net/bonding/rte_eth_bond_alb.h b/drivers/net/bonding/rte_eth_bond_alb.h
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+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef RTE_ETH_BOND_ALB_H_
+#define RTE_ETH_BOND_ALB_H_
+
+#include <rte_ether.h>
+#include <rte_arp.h>
+
+#define ALB_HASH_TABLE_SIZE	256
+#define ALB_NULL_INDEX		0xFFFFFFFF
+
+struct client_data {
+	/** ARP data of single client */
+	struct ether_addr app_mac;
+	/**< MAC address of application running DPDK */
+	uint32_t app_ip;
+	/**< IP address of application running DPDK */
+	struct ether_addr cli_mac;
+	/**< Client MAC address */
+	uint32_t cli_ip;
+	/**< Client IP address */
+
+	uint8_t slave_idx;
+	/**< Index of slave on which we connect with that client */
+	uint8_t in_use;
+	/**< Flag indicating if entry in client table is currently used */
+	uint8_t ntt;
+	/**< Flag indicating if we need to send update to this client on next tx */
+
+	struct vlan_hdr vlan[2];
+	/**< Content of vlan headers */
+	uint8_t vlan_count;
+	/**< Number of nested vlan headers */
+};
+
+struct mode_alb_private {
+	struct client_data client_table[ALB_HASH_TABLE_SIZE];
+	/**< Hash table storing ARP data of every client connected */
+	struct rte_mempool *mempool;
+	/**< Mempool for creating ARP update packets */
+	uint8_t ntt;
+	/**< Flag indicating if we need to send update to any client on next tx */
+	uint32_t last_slave;
+	/**< Index of last used slave in client table */
+	rte_spinlock_t lock;
+};
+
+/**
+ * ALB mode initialization.
+ *
+ * @param bond_dev		Pointer to bonding device.
+ *
+ * @return
+ * Error code - 0 on success.
+ */
+int
+bond_mode_alb_enable(struct rte_eth_dev *bond_dev);
+
+/**
+ * Function handles ARP packet reception. If received ARP request, it is
+ * forwarded to application without changes. If it is ARP reply, client table
+ * is updated.
+ *
+ * @param eth_h			ETH header of received packet.
+ * @param offset		Vlan header offset.
+ * @param internals		Bonding data.
+ */
+void
+bond_mode_alb_arp_recv(struct ether_hdr *eth_h, uint16_t offset,
+		struct bond_dev_private *internals);
+
+/**
+ * Function handles ARP packet transmission. It also decides on which slave
+ * send that packet. If packet is ARP Request, it is send on primary slave.
+ * If it is ARP Reply, it is send on slave stored in client table for that
+ * connection. On Reply function also updates data in client table.
+ *
+ * @param eth_h			ETH header of transmitted packet.
+ * @param offset		Vlan header offset.
+ * @param internals		Bonding data.
+ *
+ * @return
+ * Index of slave on which packet should be sent.
+ */
+uint8_t
+bond_mode_alb_arp_xmit(struct ether_hdr *eth_h, uint16_t offset,
+		struct bond_dev_private *internals);
+
+/**
+ * Function fills packet with ARP data from client_info.
+ *
+ * @param client_info	Data of client to which packet is sent.
+ * @param pkt			Pointer to packet which is sent.
+ * @param internals		Bonding data.
+ *
+ * @return
+ * Index of slawe on which packet should be sent.
+ */
+uint8_t
+bond_mode_alb_arp_upd(struct client_data *client_info,
+		struct rte_mbuf *pkt, struct bond_dev_private *internals);
+
+/**
+ * Function updates slave indexes of active connections.
+ *
+ * @param bond_dev		Pointer to bonded device struct.
+ */
+void
+bond_mode_alb_client_list_upd(struct rte_eth_dev *bond_dev);
+
+#endif /* RTE_ETH_BOND_ALB_H_ */