4 * Copyright 2017 6WIND S.A.
5 * Copyright 2017 Mellanox.
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34 #ifndef _RTE_ETH_TAP_H_
35 #define _RTE_ETH_TAP_H_
37 #include <sys/queue.h>
41 #include <linux/if_tun.h>
43 #include <rte_ethdev.h>
44 #include <rte_ether.h>
46 #ifdef IFF_MULTI_QUEUE
47 #define RTE_PMD_TAP_MAX_QUEUES 16
49 #define RTE_PMD_TAP_MAX_QUEUES 1
53 uint64_t opackets; /* Number of output packets */
54 uint64_t ipackets; /* Number of input packets */
55 uint64_t obytes; /* Number of bytes on output */
56 uint64_t ibytes; /* Number of bytes on input */
57 uint64_t errs; /* Number of TX error packets */
58 uint64_t ierrors; /* Number of RX error packets */
59 uint64_t rx_nombuf; /* Nb of RX mbuf alloc failures */
63 struct rte_mempool *mp; /* Mempool for RX packets */
64 uint32_t trigger_seen; /* Last seen Rx trigger value */
65 uint16_t in_port; /* Port ID */
67 struct pkt_stats stats; /* Stats for this RX queue */
68 uint16_t nb_rx_desc; /* max number of mbufs available */
69 struct rte_eth_rxmode *rxmode; /* RX features */
70 struct rte_mbuf *pool; /* mbufs pool for this queue */
71 struct iovec (*iovecs)[]; /* descriptors for this queue */
72 struct tun_pi pi; /* packet info for iovecs */
77 uint16_t *mtu; /* Pointer to MTU from dev_data */
78 struct pkt_stats stats; /* Stats for this TX queue */
81 struct pmd_internals {
82 char remote_iface[RTE_ETH_NAME_MAX_LEN]; /* Remote netdevice name */
83 char name[RTE_ETH_NAME_MAX_LEN]; /* Internal Tap device name */
84 uint16_t nb_queues; /* Number of queues supported */
85 struct ether_addr eth_addr; /* Mac address of the device port */
86 int remote_if_index; /* remote netdevice IF_INDEX */
87 int if_index; /* IF_INDEX for the port */
88 int ioctl_sock; /* socket for ioctl calls */
89 int nlsk_fd; /* Netlink socket fd */
90 int flower_support; /* 1 if kernel supports, else 0 */
91 int flower_vlan_support; /* 1 if kernel supports, else 0 */
92 LIST_HEAD(tap_flows, rte_flow) flows; /* rte_flow rules */
93 /* implicit rte_flow rules set when a remote device is active */
94 LIST_HEAD(tap_implicit_flows, rte_flow) implicit_flows;
95 struct rx_queue rxq[RTE_PMD_TAP_MAX_QUEUES]; /* List of RX queues */
96 struct tx_queue txq[RTE_PMD_TAP_MAX_QUEUES]; /* List of TX queues */
97 struct rte_intr_handle intr_handle; /* LSC interrupt handle. */
100 #endif /* _RTE_ETH_TAP_H_ */