--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox.
+ *
+ * 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 6WIND S.A. 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_TAP_H_
+#define _RTE_ETH_TAP_H_
+
+#include <sys/queue.h>
+#include <sys/uio.h>
+#include <inttypes.h>
+
+#include <linux/if_tun.h>
+
+#include <rte_ethdev.h>
+#include <rte_ether.h>
+
+#ifdef IFF_MULTI_QUEUE
+#define RTE_PMD_TAP_MAX_QUEUES 16
+#else
+#define RTE_PMD_TAP_MAX_QUEUES 1
+#endif
+
+struct pkt_stats {
+ uint64_t opackets; /* Number of output packets */
+ uint64_t ipackets; /* Number of input packets */
+ uint64_t obytes; /* Number of bytes on output */
+ uint64_t ibytes; /* Number of bytes on input */
+ uint64_t errs; /* Number of TX error packets */
+ uint64_t ierrors; /* Number of RX error packets */
+ uint64_t rx_nombuf; /* Nb of RX mbuf alloc failures */
+};
+
+struct rx_queue {
+ struct rte_mempool *mp; /* Mempool for RX packets */
+ uint32_t trigger_seen; /* Last seen Rx trigger value */
+ uint16_t in_port; /* Port ID */
+ int fd;
+ struct pkt_stats stats; /* Stats for this RX queue */
+ uint16_t nb_rx_desc; /* max number of mbufs available */
+ struct rte_eth_rxmode *rxmode; /* RX features */
+ struct rte_mbuf *pool; /* mbufs pool for this queue */
+ struct iovec (*iovecs)[]; /* descriptors for this queue */
+ struct tun_pi pi; /* packet info for iovecs */
+};
+
+struct tx_queue {
+ int fd;
+ uint16_t *mtu; /* Pointer to MTU from dev_data */
+ struct pkt_stats stats; /* Stats for this TX queue */
+};
+
+struct pmd_internals {
+ char remote_iface[RTE_ETH_NAME_MAX_LEN]; /* Remote netdevice name */
+ char name[RTE_ETH_NAME_MAX_LEN]; /* Internal Tap device name */
+ uint16_t nb_queues; /* Number of queues supported */
+ struct ether_addr eth_addr; /* Mac address of the device port */
+ int remote_if_index; /* remote netdevice IF_INDEX */
+ int if_index; /* IF_INDEX for the port */
+ int ioctl_sock; /* socket for ioctl calls */
+ int nlsk_fd; /* Netlink socket fd */
+ int flower_support; /* 1 if kernel supports, else 0 */
+ int flower_vlan_support; /* 1 if kernel supports, else 0 */
+ LIST_HEAD(tap_flows, rte_flow) flows; /* rte_flow rules */
+ /* implicit rte_flow rules set when a remote device is active */
+ LIST_HEAD(tap_implicit_flows, rte_flow) implicit_flows;
+ struct rx_queue rxq[RTE_PMD_TAP_MAX_QUEUES]; /* List of RX queues */
+ struct tx_queue txq[RTE_PMD_TAP_MAX_QUEUES]; /* List of TX queues */
+ struct rte_intr_handle intr_handle; /* LSC interrupt handle. */
+};
+
+#endif /* _RTE_ETH_TAP_H_ */
Code Review / deb_dpdk.git / blobdiff