15 #include <sys/eventfd.h>
25 #include <linux/vhost.h>
26 #include <linux/virtio_ring.h>
27 #include <linux/virtio_net.h>
29 #define RTE_VHOST_USER_CLIENT (1ULL << 0)
30 #define RTE_VHOST_USER_NO_RECONNECT (1ULL << 1)
31 #define RTE_VHOST_USER_RESERVED_1 (1ULL << 2)
32 #define RTE_VHOST_USER_IOMMU_SUPPORT (1ULL << 3)
33 #define RTE_VHOST_USER_POSTCOPY_SUPPORT (1ULL << 4)
35 #define RTE_VHOST_USER_EXTBUF_SUPPORT (1ULL << 5)
37 #define RTE_VHOST_USER_LINEARBUF_SUPPORT (1ULL << 6)
38 #define RTE_VHOST_USER_ASYNC_COPY (1ULL << 7)
39 #define RTE_VHOST_USER_NET_COMPLIANT_OL_FLAGS (1ULL << 8)
42 #ifndef VIRTIO_NET_F_GUEST_ANNOUNCE
43 #define VIRTIO_NET_F_GUEST_ANNOUNCE 21
46 #ifndef VIRTIO_NET_F_MQ
47 #define VIRTIO_NET_F_MQ 22
50 #ifndef VIRTIO_NET_F_MTU
51 #define VIRTIO_NET_F_MTU 3
54 #ifndef VIRTIO_F_ANY_LAYOUT
55 #define VIRTIO_F_ANY_LAYOUT 27
59 #ifndef VHOST_USER_PROTOCOL_F_MQ
60 #define VHOST_USER_PROTOCOL_F_MQ 0
63 #ifndef VHOST_USER_PROTOCOL_F_LOG_SHMFD
64 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
67 #ifndef VHOST_USER_PROTOCOL_F_RARP
68 #define VHOST_USER_PROTOCOL_F_RARP 2
71 #ifndef VHOST_USER_PROTOCOL_F_REPLY_ACK
72 #define VHOST_USER_PROTOCOL_F_REPLY_ACK 3
75 #ifndef VHOST_USER_PROTOCOL_F_NET_MTU
76 #define VHOST_USER_PROTOCOL_F_NET_MTU 4
79 #ifndef VHOST_USER_PROTOCOL_F_SLAVE_REQ
80 #define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5
83 #ifndef VHOST_USER_PROTOCOL_F_CRYPTO_SESSION
84 #define VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 7
87 #ifndef VHOST_USER_PROTOCOL_F_PAGEFAULT
88 #define VHOST_USER_PROTOCOL_F_PAGEFAULT 8
91 #ifndef VHOST_USER_PROTOCOL_F_CONFIG
92 #define VHOST_USER_PROTOCOL_F_CONFIG 9
95 #ifndef VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD
96 #define VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 10
99 #ifndef VHOST_USER_PROTOCOL_F_HOST_NOTIFIER
100 #define VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 11
103 #ifndef VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD
104 #define VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 12
107 #ifndef VHOST_USER_PROTOCOL_F_STATUS
108 #define VHOST_USER_PROTOCOL_F_STATUS 16
112 #ifndef VHOST_USER_F_PROTOCOL_FEATURES
113 #define VHOST_USER_F_PROTOCOL_FEATURES 30
123 uint64_t guest_phys_addr;
124 uint64_t guest_user_addr;
125 uint64_t host_user_addr;
140 struct rte_vhost_inflight_desc_split {
147 struct rte_vhost_inflight_info_split {
151 uint16_t last_inflight_io;
153 struct rte_vhost_inflight_desc_split desc[0];
156 struct rte_vhost_inflight_desc_packed {
169 struct rte_vhost_inflight_info_packed {
174 uint16_t old_free_head;
176 uint16_t old_used_idx;
177 uint8_t used_wrap_counter;
178 uint8_t old_used_wrap_counter;
180 struct rte_vhost_inflight_desc_packed desc[0];
183 struct rte_vhost_resubmit_desc {
188 struct rte_vhost_resubmit_info {
189 struct rte_vhost_resubmit_desc *resubmit_list;
190 uint16_t resubmit_num;
193 struct rte_vhost_ring_inflight {
195 struct rte_vhost_inflight_info_split *inflight_split;
196 struct rte_vhost_inflight_info_packed *inflight_packed;
199 struct rte_vhost_resubmit_info *resubmit_inflight;
202 struct rte_vhost_vring {
204 struct vring_desc *desc;
205 struct vring_packed_desc *desc_packed;
208 struct vring_avail *avail;
209 struct vring_packed_desc_event *driver_event;
212 struct vring_used *used;
213 struct vring_packed_desc_event *device_event;
215 uint64_t log_guest_addr;
229 RTE_VHOST_MSG_RESULT_ERR = -1,
231 RTE_VHOST_MSG_RESULT_OK = 0,
233 RTE_VHOST_MSG_RESULT_REPLY = 1,
235 RTE_VHOST_MSG_RESULT_NOT_HANDLED,
281 int (*new_connection)(
int vid);
282 void (*destroy_connection)(
int vid);
317 for (i = 0; i < mem->nregions; i++) {
318 reg = &mem->regions[i];
319 if (gpa >= reg->guest_phys_addr &&
320 gpa < reg->guest_phys_addr + reg->size) {
321 return gpa - reg->guest_phys_addr +
348 uint64_t gpa, uint64_t *len)
353 for (i = 0; i < mem->nregions; i++) {
354 r = &mem->regions[i];
355 if (gpa >= r->guest_phys_addr &&
356 gpa < r->guest_phys_addr + r->size) {
358 if (
unlikely(*len > r->guest_phys_addr + r->size - gpa))
359 *len = r->guest_phys_addr + r->size - gpa;
361 return gpa - r->guest_phys_addr +
370 #define RTE_VHOST_NEED_LOG(features) ((features) & (1ULL << VHOST_F_LOG_ALL))
411 uint64_t offset, uint64_t len);
413 int rte_vhost_enable_guest_notification(
int vid, uint16_t queue_id,
int enable);
422 int rte_vhost_driver_unregister(
const char *path);
528 uint64_t protocol_features);
543 uint64_t *protocol_features);
572 int rte_vhost_driver_callback_register(
const char *path,
691 struct rte_mbuf **pkts, uint16_t count);
742 struct rte_vhost_vring *vring);
759 struct rte_vhost_ring_inflight *vring);
802 uint16_t head, uint16_t last, uint16_t *inflight_entry);
819 uint16_t vring_idx, uint16_t idx);
839 uint16_t vring_idx, uint16_t head);
858 uint16_t last_used_idx, uint16_t idx);
933 uint16_t *last_avail_idx, uint16_t *last_used_idx);
956 uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx);
974 uint16_t last_avail_idx, uint16_t last_used_idx);
#define __rte_always_inline
uint16_t rte_vhost_get_vring_num(int vid)
__rte_experimental int rte_vhost_slave_config_change(int vid, bool need_reply)
struct rte_vdpa_device * rte_vhost_get_vdpa_device(int vid)
uint32_t rte_vhost_rx_queue_count(int vid, uint16_t qid)
__rte_experimental int rte_vhost_set_inflight_desc_packed(int vid, uint16_t vring_idx, uint16_t head, uint16_t last, uint16_t *inflight_entry)
int rte_vhost_get_ifname(int vid, char *buf, size_t len)
int rte_vhost_get_negotiated_features(int vid, uint64_t *features)
int rte_vhost_get_mtu(int vid, uint16_t *mtu)
uint16_t rte_vhost_dequeue_burst(int vid, uint16_t queue_id, struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count)
static __rte_experimental __rte_always_inline uint64_t rte_vhost_va_from_guest_pa(struct rte_vhost_memory *mem, uint64_t gpa, uint64_t *len)
__rte_experimental int rte_vhost_extern_callback_register(int vid, struct rte_vhost_user_extern_ops const *const ops, void *ctx)
__rte_experimental int rte_vhost_set_last_inflight_io_packed(int vid, uint16_t vring_idx, uint16_t head)
int rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem)
__rte_experimental int rte_vhost_driver_get_protocol_features(const char *path, uint64_t *protocol_features)
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)
__rte_experimental int rte_vhost_get_vring_base_from_inflight(int vid, uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx)
uint16_t rte_vhost_avail_entries(int vid, uint16_t queue_id)
__rte_experimental int rte_vhost_set_inflight_desc_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)
int rte_vhost_driver_attach_vdpa_device(const char *path, struct rte_vdpa_device *dev)
__rte_experimental int rte_vhost_set_last_inflight_io_split(int vid, uint16_t vring_idx, uint16_t idx)
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)
__rte_experimental int rte_vhost_driver_get_queue_num(const char *path, uint32_t *queue_num)
struct rte_vdpa_device * rte_vhost_driver_get_vdpa_device(const char *path)
__rte_experimental int rte_vhost_driver_set_protocol_features(const char *path, uint64_t protocol_features)
int rte_vhost_vring_call(int vid, uint16_t vring_idx)
__rte_deprecated uint32_t rte_vhost_get_queue_num(int vid)
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)
static __rte_deprecated __rte_always_inline uint64_t rte_vhost_gpa_to_vva(struct rte_vhost_memory *mem, uint64_t gpa)
void rte_vhost_log_used_vring(int vid, uint16_t vring_idx, uint64_t offset, uint64_t len)
int rte_vhost_driver_get_features(const char *path, uint64_t *features)
__rte_experimental int rte_vhost_clr_inflight_desc_split(int vid, uint16_t vring_idx, uint16_t last_used_idx, uint16_t idx)
__rte_experimental int rte_vhost_clr_inflight_desc_packed(int vid, uint16_t vring_idx, uint16_t head)
int rte_vhost_get_log_base(int vid, uint64_t *log_base, uint64_t *log_size)
int rte_vhost_driver_detach_vdpa_device(const char *path)
__rte_experimental int rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx, struct rte_vhost_ring_inflight *vring)
int rte_vhost_driver_disable_features(const char *path, uint64_t features)
struct rte_vdpa_dev_ops * ops
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)