15#include <sys/eventfd.h>
26#include <linux/vhost.h>
27#include <linux/virtio_ring.h>
28#include <linux/virtio_net.h>
31#define RTE_VHOST_USER_CLIENT (1ULL << 0)
32#define RTE_VHOST_USER_NO_RECONNECT (1ULL << 1)
33#define RTE_VHOST_USER_RESERVED_1 (1ULL << 2)
34#define RTE_VHOST_USER_IOMMU_SUPPORT (1ULL << 3)
35#define RTE_VHOST_USER_POSTCOPY_SUPPORT (1ULL << 4)
37#define RTE_VHOST_USER_EXTBUF_SUPPORT (1ULL << 5)
39#define RTE_VHOST_USER_LINEARBUF_SUPPORT (1ULL << 6)
40#define RTE_VHOST_USER_ASYNC_COPY (1ULL << 7)
41#define RTE_VHOST_USER_NET_COMPLIANT_OL_FLAGS (1ULL << 8)
42#define RTE_VHOST_USER_NET_STATS_ENABLE (1ULL << 9)
45#ifndef VIRTIO_NET_F_GUEST_ANNOUNCE
46 #define VIRTIO_NET_F_GUEST_ANNOUNCE 21
49#ifndef VIRTIO_NET_F_MQ
50 #define VIRTIO_NET_F_MQ 22
53#ifndef VIRTIO_NET_F_MTU
54 #define VIRTIO_NET_F_MTU 3
57#ifndef VIRTIO_F_ANY_LAYOUT
58 #define VIRTIO_F_ANY_LAYOUT 27
62#ifndef VHOST_USER_PROTOCOL_F_MQ
63#define VHOST_USER_PROTOCOL_F_MQ 0
66#ifndef VHOST_USER_PROTOCOL_F_LOG_SHMFD
67#define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
70#ifndef VHOST_USER_PROTOCOL_F_RARP
71#define VHOST_USER_PROTOCOL_F_RARP 2
74#ifndef VHOST_USER_PROTOCOL_F_REPLY_ACK
75#define VHOST_USER_PROTOCOL_F_REPLY_ACK 3
78#ifndef VHOST_USER_PROTOCOL_F_NET_MTU
79#define VHOST_USER_PROTOCOL_F_NET_MTU 4
82#ifndef VHOST_USER_PROTOCOL_F_SLAVE_REQ
83#define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5
86#ifndef VHOST_USER_PROTOCOL_F_CRYPTO_SESSION
87#define VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 7
90#ifndef VHOST_USER_PROTOCOL_F_PAGEFAULT
91#define VHOST_USER_PROTOCOL_F_PAGEFAULT 8
94#ifndef VHOST_USER_PROTOCOL_F_CONFIG
95#define VHOST_USER_PROTOCOL_F_CONFIG 9
98#ifndef VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD
99#define VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 10
102#ifndef VHOST_USER_PROTOCOL_F_HOST_NOTIFIER
103#define VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 11
106#ifndef VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD
107#define VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 12
110#ifndef VHOST_USER_PROTOCOL_F_STATUS
111#define VHOST_USER_PROTOCOL_F_STATUS 16
115#ifndef VHOST_USER_F_PROTOCOL_FEATURES
116#define VHOST_USER_F_PROTOCOL_FEATURES 30
119#define RTE_MAX_VHOST_DEVICE 1024
121#define RTE_VHOST_VDPA_DEVICE_TYPE_NET 0
122#define RTE_VHOST_VDPA_DEVICE_TYPE_BLK 1
124struct rte_vdpa_device;
131 uint64_t guest_phys_addr;
132 uint64_t guest_user_addr;
133 uint64_t host_user_addr;
148struct rte_vhost_inflight_desc_split {
155struct rte_vhost_inflight_info_split {
159 uint16_t last_inflight_io;
161 struct rte_vhost_inflight_desc_split desc[];
164struct rte_vhost_inflight_desc_packed {
177struct rte_vhost_inflight_info_packed {
182 uint16_t old_free_head;
184 uint16_t old_used_idx;
185 uint8_t used_wrap_counter;
186 uint8_t old_used_wrap_counter;
188 struct rte_vhost_inflight_desc_packed desc[];
191struct rte_vhost_resubmit_desc {
196struct rte_vhost_resubmit_info {
197 struct rte_vhost_resubmit_desc *resubmit_list;
198 uint16_t resubmit_num;
201struct rte_vhost_ring_inflight {
203 struct rte_vhost_inflight_info_split *inflight_split;
204 struct rte_vhost_inflight_info_packed *inflight_packed;
207 struct rte_vhost_resubmit_info *resubmit_inflight;
210struct rte_vhost_vring {
212 struct vring_desc *desc;
213 struct vring_packed_desc *desc_packed;
216 struct vring_avail *avail;
217 struct vring_packed_desc_event *driver_event;
220 struct vring_used *used;
221 struct vring_packed_desc_event *device_event;
223 uint64_t log_guest_addr;
237 RTE_VHOST_MSG_RESULT_ERR = -1,
239 RTE_VHOST_MSG_RESULT_OK = 0,
241 RTE_VHOST_MSG_RESULT_REPLY = 1,
243 RTE_VHOST_MSG_RESULT_NOT_HANDLED,
289 int (*new_connection)(
int vid);
290 void (*destroy_connection)(
int vid);
329#define RTE_VHOST_STATS_NAME_SIZE 64
368 uint64_t gpa, uint64_t *len)
373 for (i = 0; i < mem->nregions; i++) {
374 r = &mem->regions[i];
375 if (gpa >= r->guest_phys_addr &&
376 gpa < r->guest_phys_addr + r->size) {
378 if (
unlikely(*len > r->guest_phys_addr + r->size - gpa))
379 *len = r->guest_phys_addr + r->size - gpa;
381 return gpa - r->guest_phys_addr +
390#define RTE_VHOST_NEED_LOG(features) ((features) & (1ULL << VHOST_F_LOG_ALL))
431 uint64_t offset, uint64_t len);
433int rte_vhost_enable_guest_notification(
int vid, uint16_t queue_id,
int enable);
442int rte_vhost_driver_unregister(
const char *path);
456 struct rte_vdpa_device *dev);
477struct rte_vdpa_device *
561 uint64_t protocol_features);
575 uint64_t *protocol_features);
615 uint64_t *protocol_features);
618int rte_vhost_driver_callback_register(
const char *path,
720 struct rte_mbuf **pkts, uint16_t count);
771 struct rte_vhost_vring *vring);
787 struct rte_vhost_ring_inflight *vring);
828 uint16_t head, uint16_t last, uint16_t *inflight_entry);
844 uint16_t vring_idx, uint16_t idx);
863 uint16_t vring_idx, uint16_t head);
881 uint16_t last_used_idx, uint16_t idx);
987 uint16_t *last_avail_idx, uint16_t *last_used_idx);
1009 uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx);
1027 uint16_t last_avail_idx, uint16_t last_used_idx);
1053struct rte_vdpa_device *
#define __rte_always_inline
int rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx, struct rte_vhost_ring_inflight *vring)
uint16_t rte_vhost_get_vring_num(int vid)
__rte_experimental int rte_vhost_slave_config_change(int vid, bool need_reply)
uint32_t rte_vhost_rx_queue_count(int vid, uint16_t qid)
int rte_vhost_get_ifname(int vid, char *buf, size_t len)
int rte_vhost_set_inflight_desc_split(int vid, uint16_t vring_idx, uint16_t idx)
int rte_vhost_get_negotiated_features(int vid, uint64_t *features)
int rte_vhost_get_mtu(int vid, uint16_t *mtu)
__rte_experimental int rte_vhost_get_monitor_addr(int vid, uint16_t queue_id, struct rte_vhost_power_monitor_cond *pmc)
uint16_t rte_vhost_dequeue_burst(int vid, uint16_t queue_id, struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count)
int rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem)
__rte_experimental int rte_vhost_get_negotiated_protocol_features(int vid, uint64_t *protocol_features)
int rte_vhost_vring_stats_reset(int vid, uint16_t queue_id)
int rte_vhost_vring_stats_get(int vid, uint16_t queue_id, struct rte_vhost_stat *stats, unsigned int n)
int rte_vhost_get_vring_base(int vid, uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx)
int rte_vhost_driver_set_features(const char *path, uint64_t features)
uint16_t rte_vhost_avail_entries(int vid, uint16_t queue_id)
int rte_vhost_driver_set_protocol_features(const char *path, uint64_t protocol_features)
int rte_vhost_set_last_inflight_io_split(int vid, uint16_t vring_idx, uint16_t idx)
int rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx, struct rte_vhost_vring *vring)
struct rte_vdpa_device * rte_vhost_get_vdpa_device(int vid)
int rte_vhost_driver_attach_vdpa_device(const char *path, struct rte_vdpa_device *dev)
void rte_vhost_log_write(int vid, uint64_t addr, uint64_t len)
int rte_vhost_get_numa_node(int vid)
int rte_vhost_driver_start(const char *path)
int rte_vhost_driver_register(const char *path, uint64_t flags)
enum rte_vhost_msg_result(* rte_vhost_msg_handle)(int vid, void *msg)
int rte_vhost_set_vring_base(int vid, uint16_t queue_id, uint16_t last_avail_idx, uint16_t last_used_idx)
int rte_vhost_driver_get_protocol_features(const char *path, uint64_t *protocol_features)
int rte_vhost_vring_call(int vid, uint16_t vring_idx)
struct rte_vdpa_device * rte_vhost_driver_get_vdpa_device(const char *path)
uint16_t rte_vhost_enqueue_burst(int vid, uint16_t queue_id, struct rte_mbuf **pkts, uint16_t count)
int rte_vhost_driver_enable_features(const char *path, uint64_t features)
int rte_vhost_set_inflight_desc_packed(int vid, uint16_t vring_idx, uint16_t head, uint16_t last, uint16_t *inflight_entry)
__rte_experimental int rte_vhost_vring_call_nonblock(int vid, uint16_t vring_idx)
#define RTE_VHOST_STATS_NAME_SIZE
void rte_vhost_log_used_vring(int vid, uint16_t vring_idx, uint64_t offset, uint64_t len)
int rte_vhost_set_last_inflight_io_packed(int vid, uint16_t vring_idx, uint16_t head)
int rte_vhost_get_vring_base_from_inflight(int vid, uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx)
int rte_vhost_clr_inflight_desc_packed(int vid, uint16_t vring_idx, uint16_t head)
__rte_experimental int rte_vhost_driver_get_vdpa_dev_type(const char *path, uint32_t *type)
int rte_vhost_driver_get_features(const char *path, uint64_t *features)
int rte_vhost_get_log_base(int vid, uint64_t *log_base, uint64_t *log_size)
int rte_vhost_extern_callback_register(int vid, struct rte_vhost_user_extern_ops const *const ops, void *ctx)
int rte_vhost_driver_detach_vdpa_device(const char *path)
int rte_vhost_driver_get_queue_num(const char *path, uint32_t *queue_num)
static __rte_always_inline uint64_t rte_vhost_va_from_guest_pa(struct rte_vhost_memory *mem, uint64_t gpa, uint64_t *len)
int rte_vhost_vring_stats_get_names(int vid, uint16_t queue_id, struct rte_vhost_stat_name *name, unsigned int size)
int rte_vhost_driver_disable_features(const char *path, uint64_t features)
int rte_vhost_clr_inflight_desc_split(int vid, uint16_t vring_idx, uint16_t last_used_idx, uint16_t idx)
int(* vring_state_changed)(int vid, uint16_t queue_id, int enable)
int(* new_device)(int vid)
int(* features_changed)(int vid, uint64_t features)
void(* destroy_device)(int vid)
void(* guest_notified)(int vid)
char name[RTE_VHOST_STATS_NAME_SIZE]