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Diffstat (limited to 'src/spdk/dpdk/examples/vhost/main.h')
| -rw-r--r-- | src/spdk/dpdk/examples/vhost/main.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/spdk/dpdk/examples/vhost/main.h b/src/spdk/dpdk/examples/vhost/main.h new file mode 100644 index 00000000..764c33af --- /dev/null +++ b/src/spdk/dpdk/examples/vhost/main.h @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2017 Intel Corporation + */ + +#ifndef _MAIN_H_ +#define _MAIN_H_ + +#include <sys/queue.h> + +#include <rte_ether.h> + +/* Macros for printing using RTE_LOG */ +#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1 +#define RTE_LOGTYPE_VHOST_DATA RTE_LOGTYPE_USER2 +#define RTE_LOGTYPE_VHOST_PORT RTE_LOGTYPE_USER3 + +enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM}; + +#define MAX_PKT_BURST 32 /* Max burst size for RX/TX */ + +struct device_statistics { + uint64_t tx; + uint64_t tx_total; + rte_atomic64_t rx_atomic; + rte_atomic64_t rx_total_atomic; +}; + +struct vhost_queue { + struct rte_vhost_vring vr; + uint16_t last_avail_idx; + uint16_t last_used_idx; +}; + +struct vhost_dev { + /**< Number of memory regions for gpa to hpa translation. */ + uint32_t nregions_hpa; + /**< Device MAC address (Obtained on first TX packet). */ + struct ether_addr mac_address; + /**< RX VMDQ queue number. */ + uint16_t vmdq_rx_q; + /**< Vlan tag assigned to the pool */ + uint32_t vlan_tag; + /**< Data core that the device is added to. */ + uint16_t coreid; + /**< A device is set as ready if the MAC address has been set. */ + volatile uint8_t ready; + /**< Device is marked for removal from the data core. */ + volatile uint8_t remove; + + int vid; + uint64_t features; + size_t hdr_len; + uint16_t nr_vrings; + struct rte_vhost_memory *mem; + struct device_statistics stats; + TAILQ_ENTRY(vhost_dev) global_vdev_entry; + TAILQ_ENTRY(vhost_dev) lcore_vdev_entry; + +#define MAX_QUEUE_PAIRS 4 + struct vhost_queue queues[MAX_QUEUE_PAIRS * 2]; +} __rte_cache_aligned; + +TAILQ_HEAD(vhost_dev_tailq_list, vhost_dev); + + +#define REQUEST_DEV_REMOVAL 1 +#define ACK_DEV_REMOVAL 0 + +/* + * Structure containing data core specific information. + */ +struct lcore_info { + uint32_t device_num; + + /* Flag to synchronize device removal. */ + volatile uint8_t dev_removal_flag; + + struct vhost_dev_tailq_list vdev_list; +}; + +/* we implement non-extra virtio net features */ +#define VIRTIO_NET_FEATURES 0 + +void vs_vhost_net_setup(struct vhost_dev *dev); +void vs_vhost_net_remove(struct vhost_dev *dev); +uint16_t vs_enqueue_pkts(struct vhost_dev *dev, uint16_t queue_id, + struct rte_mbuf **pkts, uint32_t count); + +uint16_t vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id, + struct rte_mempool *mbuf_pool, + struct rte_mbuf **pkts, uint16_t count); +#endif /* _MAIN_H_ */ |