15 #include <sys/eventfd.h> 17 #include <rte_compat.h> 27 #include <linux/vhost.h> 28 #include <linux/virtio_ring.h> 29 #include <linux/virtio_net.h> 32 #define RTE_VHOST_USER_CLIENT (1ULL << 0) 33 #define RTE_VHOST_USER_NO_RECONNECT (1ULL << 1) 34 #define RTE_VHOST_USER_RESERVED_1 (1ULL << 2) 35 #define RTE_VHOST_USER_IOMMU_SUPPORT (1ULL << 3) 36 #define RTE_VHOST_USER_POSTCOPY_SUPPORT (1ULL << 4) 38 #define RTE_VHOST_USER_EXTBUF_SUPPORT (1ULL << 5) 40 #define RTE_VHOST_USER_LINEARBUF_SUPPORT (1ULL << 6) 41 #define RTE_VHOST_USER_ASYNC_COPY (1ULL << 7) 42 #define RTE_VHOST_USER_NET_COMPLIANT_OL_FLAGS (1ULL << 8) 43 #define RTE_VHOST_USER_NET_STATS_ENABLE (1ULL << 9) 44 #define RTE_VHOST_USER_ASYNC_CONNECT (1ULL << 10) 47 #ifndef VIRTIO_NET_F_GUEST_ANNOUNCE 48 #define VIRTIO_NET_F_GUEST_ANNOUNCE 21 51 #ifndef VIRTIO_NET_F_MQ 52 #define VIRTIO_NET_F_MQ 22 55 #ifndef VIRTIO_NET_F_MTU 56 #define VIRTIO_NET_F_MTU 3 59 #ifndef VIRTIO_F_ANY_LAYOUT 60 #define VIRTIO_F_ANY_LAYOUT 27 64 #ifndef VHOST_USER_PROTOCOL_F_MQ 65 #define VHOST_USER_PROTOCOL_F_MQ 0 68 #ifndef VHOST_USER_PROTOCOL_F_LOG_SHMFD 69 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 72 #ifndef VHOST_USER_PROTOCOL_F_RARP 73 #define VHOST_USER_PROTOCOL_F_RARP 2 76 #ifndef VHOST_USER_PROTOCOL_F_REPLY_ACK 77 #define VHOST_USER_PROTOCOL_F_REPLY_ACK 3 80 #ifndef VHOST_USER_PROTOCOL_F_NET_MTU 81 #define VHOST_USER_PROTOCOL_F_NET_MTU 4 84 #ifndef VHOST_USER_PROTOCOL_F_BACKEND_REQ 85 #define VHOST_USER_PROTOCOL_F_BACKEND_REQ 5 88 #ifndef VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 89 #define VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 7 92 #ifndef VHOST_USER_PROTOCOL_F_PAGEFAULT 93 #define VHOST_USER_PROTOCOL_F_PAGEFAULT 8 96 #ifndef VHOST_USER_PROTOCOL_F_CONFIG 97 #define VHOST_USER_PROTOCOL_F_CONFIG 9 100 #ifndef VHOST_USER_PROTOCOL_F_BACKEND_SEND_FD 101 #define VHOST_USER_PROTOCOL_F_BACKEND_SEND_FD 10 104 #ifndef VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 105 #define VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 11 108 #ifndef VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 109 #define VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 12 112 #ifndef VHOST_USER_PROTOCOL_F_STATUS 113 #define VHOST_USER_PROTOCOL_F_STATUS 16 117 #ifndef VHOST_USER_F_PROTOCOL_FEATURES 118 #define VHOST_USER_F_PROTOCOL_FEATURES 30 121 #define RTE_MAX_VHOST_DEVICE 1024 123 #define RTE_VHOST_VDPA_DEVICE_TYPE_NET 0 124 #define RTE_VHOST_VDPA_DEVICE_TYPE_BLK 1 126 struct rte_vdpa_device;
133 uint64_t guest_phys_addr;
134 uint64_t guest_user_addr;
135 uint64_t host_user_addr;
150 struct rte_vhost_inflight_desc_split {
157 struct rte_vhost_inflight_info_split {
161 uint16_t last_inflight_io;
163 struct rte_vhost_inflight_desc_split desc[];
166 struct rte_vhost_inflight_desc_packed {
179 struct rte_vhost_inflight_info_packed {
184 uint16_t old_free_head;
186 uint16_t old_used_idx;
187 uint8_t used_wrap_counter;
188 uint8_t old_used_wrap_counter;
190 struct rte_vhost_inflight_desc_packed desc[];
193 struct rte_vhost_resubmit_desc {
198 struct rte_vhost_resubmit_info {
199 struct rte_vhost_resubmit_desc *resubmit_list;
200 uint16_t resubmit_num;
203 struct rte_vhost_ring_inflight {
205 struct rte_vhost_inflight_info_split *inflight_split;
206 struct rte_vhost_inflight_info_packed *inflight_packed;
209 struct rte_vhost_resubmit_info *resubmit_inflight;
212 struct rte_vhost_vring {
214 struct vring_desc *desc;
215 struct vring_packed_desc *desc_packed;
218 struct vring_avail *avail;
219 struct vring_packed_desc_event *driver_event;
222 struct vring_used *used;
223 struct vring_packed_desc_event *device_event;
225 uint64_t log_guest_addr;
239 RTE_VHOST_MSG_RESULT_ERR = -1,
241 RTE_VHOST_MSG_RESULT_OK = 0,
243 RTE_VHOST_MSG_RESULT_REPLY = 1,
245 RTE_VHOST_MSG_RESULT_NOT_HANDLED,
278 int (*new_device)(
int vid);
279 void (*destroy_device)(
int vid);
281 int (*vring_state_changed)(
int vid, uint16_t queue_id,
int enable);
289 int (*features_changed)(
int vid, uint64_t features);
291 int (*new_connection)(
int vid);
292 void (*destroy_connection)(
int vid);
300 void (*guest_notified)(
int vid);
308 bool (*guest_notify)(
int vid, uint16_t queue_id);
337 #define RTE_VHOST_STATS_NAME_SIZE 64 376 uint64_t gpa, uint64_t *len)
381 for (i = 0; i < mem->nregions; i++) {
382 r = &mem->regions[i];
383 if (gpa >= r->guest_phys_addr &&
384 gpa < r->guest_phys_addr + r->size) {
386 if (
unlikely(*len > r->guest_phys_addr + r->size - gpa))
387 *len = r->guest_phys_addr + r->size - gpa;
389 return gpa - r->guest_phys_addr +
398 #define RTE_VHOST_NEED_LOG(features) ((features) & (1ULL << VHOST_F_LOG_ALL)) 439 uint64_t offset, uint64_t len);
441 int rte_vhost_enable_guest_notification(
int vid, uint16_t queue_id,
int enable);
465 int rte_vhost_driver_unregister(
const char *path);
479 struct rte_vdpa_device *dev);
500 struct rte_vdpa_device *
583 uint64_t protocol_features);
597 uint64_t *protocol_features);
653 uint64_t *protocol_features);
656 int rte_vhost_driver_callback_register(
const char *path,
758 struct rte_mbuf **pkts, uint16_t count);
809 struct rte_vhost_vring *vring);
825 struct rte_vhost_ring_inflight *vring);
866 uint16_t head, uint16_t last, uint16_t *inflight_entry);
882 uint16_t vring_idx, uint16_t idx);
901 uint16_t vring_idx, uint16_t head);
919 uint16_t last_used_idx, uint16_t idx);
1023 uint16_t *last_avail_idx, uint16_t *last_used_idx);
1045 uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx);
1063 uint16_t last_avail_idx, uint16_t last_used_idx);
1089 struct rte_vdpa_device *
int rte_vhost_driver_start(const char *path)
#define __rte_always_inline
int rte_vhost_driver_register(const char *path, uint64_t flags)
uint16_t rte_vhost_avail_entries(int vid, uint16_t queue_id)
int rte_vhost_vring_stats_reset(int vid, uint16_t queue_id)
int rte_vhost_driver_disable_features(const char *path, uint64_t features)
struct rte_vdpa_device * rte_vhost_get_vdpa_device(int vid)
__rte_experimental int rte_vhost_driver_set_max_queue_num(const char *path, uint32_t max_queue_pairs)
void rte_vhost_log_used_vring(int vid, uint16_t vring_idx, uint64_t offset, uint64_t len)
#define RTE_VHOST_STATS_NAME_SIZE
int rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx, struct rte_vhost_vring *vring)
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_clr_inflight_desc_packed(int vid, uint16_t vring_idx, uint16_t head)
uint16_t rte_vhost_enqueue_burst(int vid, uint16_t queue_id, struct rte_mbuf **pkts, uint16_t count)
int rte_vhost_backend_config_change(int vid, bool need_reply)
int rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx, struct rte_vhost_ring_inflight *vring)
int rte_vhost_driver_get_protocol_features(const char *path, uint64_t *protocol_features)
int rte_vhost_set_last_inflight_io_packed(int vid, uint16_t vring_idx, uint16_t head)
int rte_vhost_get_mtu(int vid, uint16_t *mtu)
int rte_vhost_driver_detach_vdpa_device(const char *path)
int rte_vhost_driver_set_protocol_features(const char *path, uint64_t protocol_features)
int rte_vhost_driver_get_vdpa_dev_type(const char *path, uint32_t *type)
int rte_vhost_vring_stats_get(int vid, uint16_t queue_id, struct rte_vhost_stat *stats, unsigned int n)
static __rte_always_inline uint64_t rte_vhost_va_from_guest_pa(struct rte_vhost_memory *mem, uint64_t gpa, uint64_t *len)
uint16_t rte_vhost_get_vring_num(int vid)
int rte_vhost_extern_callback_register(int vid, struct rte_vhost_user_extern_ops const *const ops, void *ctx)
int rte_vhost_get_numa_node(int vid)
int rte_vhost_set_inflight_desc_split(int vid, uint16_t vring_idx, uint16_t idx)
int rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem)
__rte_experimental void rte_vhost_notify_guest(int vid, uint16_t queue_id)
int rte_vhost_driver_attach_vdpa_device(const char *path, struct rte_vdpa_device *dev)
int rte_vhost_set_last_inflight_io_split(int vid, uint16_t vring_idx, uint16_t idx)
int rte_vhost_vring_call(int vid, uint16_t vring_idx)
int rte_vhost_get_negotiated_features(int vid, uint64_t *features)
struct rte_vdpa_device * rte_vhost_driver_get_vdpa_device(const char *path)
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_clr_inflight_desc_split(int vid, uint16_t vring_idx, uint16_t last_used_idx, uint16_t idx)
int rte_vhost_get_log_base(int vid, uint64_t *log_base, uint64_t *log_size)
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_vring_call_nonblock(int vid, uint16_t vring_idx)
uint32_t rte_vhost_rx_queue_count(int vid, uint16_t qid)
int rte_vhost_get_negotiated_protocol_features(int vid, uint64_t *protocol_features)
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_vring_base(int vid, uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx)
int rte_vhost_driver_get_features(const char *path, uint64_t *features)
int rte_vhost_get_monitor_addr(int vid, uint16_t queue_id, struct rte_vhost_power_monitor_cond *pmc)
int rte_vhost_driver_get_queue_num(const char *path, uint32_t *queue_num)
int rte_vhost_driver_set_features(const char *path, uint64_t features)
int rte_vhost_get_ifname(int vid, char *buf, size_t len)
int rte_vhost_get_vring_base_from_inflight(int vid, uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx)
enum rte_vhost_msg_result(* rte_vhost_msg_handle)(int vid, void *msg)
int rte_vhost_driver_enable_features(const char *path, uint64_t features)
void rte_vhost_log_write(int vid, uint64_t addr, uint64_t len)