diff options
Diffstat (limited to 'drivers/net/tap/rte_eth_tap.h')
| -rw-r--r-- | drivers/net/tap/rte_eth_tap.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/net/tap/rte_eth_tap.h b/drivers/net/tap/rte_eth_tap.h new file mode 100644 index 00000000..ad497b3d --- /dev/null +++ b/drivers/net/tap/rte_eth_tap.h @@ -0,0 +1,100 @@ +/*- + * 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_ */ |