14 #include <sys/eventfd.h> 24 #include <linux/vhost.h> 25 #include <linux/virtio_ring.h> 26 #include <linux/virtio_net.h> 28 #define RTE_VHOST_USER_CLIENT (1ULL << 0) 29 #define RTE_VHOST_USER_NO_RECONNECT (1ULL << 1) 30 #define RTE_VHOST_USER_DEQUEUE_ZERO_COPY (1ULL << 2) 31 #define RTE_VHOST_USER_IOMMU_SUPPORT (1ULL << 3) 32 #define RTE_VHOST_USER_POSTCOPY_SUPPORT (1ULL << 4) 34 #define RTE_VHOST_USER_EXTBUF_SUPPORT (1ULL << 5) 36 #define RTE_VHOST_USER_LINEARBUF_SUPPORT (1ULL << 6) 39 #ifndef VIRTIO_NET_F_GUEST_ANNOUNCE 40 #define VIRTIO_NET_F_GUEST_ANNOUNCE 21 43 #ifndef VIRTIO_NET_F_MQ 44 #define VIRTIO_NET_F_MQ 22 47 #ifndef VIRTIO_NET_F_MTU 48 #define VIRTIO_NET_F_MTU 3 51 #ifndef VIRTIO_F_ANY_LAYOUT 52 #define VIRTIO_F_ANY_LAYOUT 27 56 #ifndef VHOST_USER_PROTOCOL_F_MQ 57 #define VHOST_USER_PROTOCOL_F_MQ 0 60 #ifndef VHOST_USER_PROTOCOL_F_LOG_SHMFD 61 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 64 #ifndef VHOST_USER_PROTOCOL_F_RARP 65 #define VHOST_USER_PROTOCOL_F_RARP 2 68 #ifndef VHOST_USER_PROTOCOL_F_REPLY_ACK 69 #define VHOST_USER_PROTOCOL_F_REPLY_ACK 3 72 #ifndef VHOST_USER_PROTOCOL_F_NET_MTU 73 #define VHOST_USER_PROTOCOL_F_NET_MTU 4 76 #ifndef VHOST_USER_PROTOCOL_F_SLAVE_REQ 77 #define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5 80 #ifndef VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 81 #define VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 7 84 #ifndef VHOST_USER_PROTOCOL_F_PAGEFAULT 85 #define VHOST_USER_PROTOCOL_F_PAGEFAULT 8 88 #ifndef VHOST_USER_PROTOCOL_F_CONFIG 89 #define VHOST_USER_PROTOCOL_F_CONFIG 9 92 #ifndef VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 93 #define VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 10 96 #ifndef VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 97 #define VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 11 100 #ifndef VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 101 #define VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 12 105 #ifndef VHOST_USER_F_PROTOCOL_FEATURES 106 #define VHOST_USER_F_PROTOCOL_FEATURES 30 115 uint64_t guest_phys_addr;
116 uint64_t guest_user_addr;
117 uint64_t host_user_addr;
132 struct rte_vhost_inflight_desc_split {
139 struct rte_vhost_inflight_info_split {
143 uint16_t last_inflight_io;
145 struct rte_vhost_inflight_desc_split desc[0];
148 struct rte_vhost_inflight_desc_packed {
161 struct rte_vhost_inflight_info_packed {
166 uint16_t old_free_head;
168 uint16_t old_used_idx;
169 uint8_t used_wrap_counter;
170 uint8_t old_used_wrap_counter;
172 struct rte_vhost_inflight_desc_packed desc[0];
175 struct rte_vhost_resubmit_desc {
180 struct rte_vhost_resubmit_info {
181 struct rte_vhost_resubmit_desc *resubmit_list;
182 uint16_t resubmit_num;
185 struct rte_vhost_ring_inflight {
187 struct rte_vhost_inflight_info_split *inflight_split;
188 struct rte_vhost_inflight_info_packed *inflight_packed;
191 struct rte_vhost_resubmit_info *resubmit_inflight;
194 struct rte_vhost_vring {
196 struct vring_desc *desc;
197 struct vring_packed_desc *desc_packed;
200 struct vring_avail *avail;
201 struct vring_packed_desc_event *driver_event;
204 struct vring_used *used;
205 struct vring_packed_desc_event *device_event;
207 uint64_t log_guest_addr;
221 RTE_VHOST_MSG_RESULT_ERR = -1,
223 RTE_VHOST_MSG_RESULT_OK = 0,
225 RTE_VHOST_MSG_RESULT_REPLY = 1,
227 RTE_VHOST_MSG_RESULT_NOT_HANDLED,
260 int (*new_device)(
int vid);
261 void (*destroy_device)(
int vid);
263 int (*vring_state_changed)(
int vid, uint16_t queue_id,
int enable);
271 int (*features_changed)(
int vid, uint64_t features);
273 int (*new_connection)(
int vid);
274 void (*destroy_connection)(
int vid);
282 void (*guest_notified)(
int vid);
309 for (i = 0; i < mem->nregions; i++) {
310 reg = &mem->regions[i];
311 if (gpa >= reg->guest_phys_addr &&
312 gpa < reg->guest_phys_addr + reg->size) {
313 return gpa - reg->guest_phys_addr +
340 uint64_t gpa, uint64_t *len)
345 for (i = 0; i < mem->nregions; i++) {
346 r = &mem->regions[i];
347 if (gpa >= r->guest_phys_addr &&
348 gpa < r->guest_phys_addr + r->size) {
350 if (
unlikely(*len > r->guest_phys_addr + r->size - gpa))
351 *len = r->guest_phys_addr + r->size - gpa;
353 return gpa - r->guest_phys_addr +
362 #define RTE_VHOST_NEED_LOG(features) ((features) & (1ULL << VHOST_F_LOG_ALL)) 403 uint64_t offset, uint64_t len);
405 int rte_vhost_enable_guest_notification(
int vid, uint16_t queue_id,
int enable);
414 int rte_vhost_driver_unregister(
const char *path);
522 uint64_t protocol_features);
537 uint64_t *protocol_features);
566 int rte_vhost_driver_callback_register(
const char *path,
685 struct rte_mbuf **pkts, uint16_t count);
736 struct rte_vhost_vring *vring);
753 struct rte_vhost_ring_inflight *vring);
796 uint16_t head, uint16_t last, uint16_t *inflight_entry);
813 uint16_t vring_idx, uint16_t idx);
833 uint16_t vring_idx, uint16_t head);
852 uint16_t last_used_idx, uint16_t idx);
929 uint16_t *last_avail_idx, uint16_t *last_used_idx);
952 uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx);
971 uint16_t last_avail_idx, uint16_t last_used_idx);
static __rte_deprecated __rte_always_inline uint64_t rte_vhost_gpa_to_vva(struct rte_vhost_memory *mem, uint64_t gpa)
__rte_experimental int rte_vhost_set_last_inflight_io_split(int vid, uint16_t vring_idx, uint16_t idx)
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)
__rte_experimental int rte_vhost_clr_inflight_desc_split(int vid, uint16_t vring_idx, uint16_t last_used_idx, uint16_t idx)
int rte_vhost_driver_disable_features(const char *path, uint64_t features)
void rte_vhost_log_used_vring(int vid, uint16_t vring_idx, uint64_t offset, uint64_t len)
__rte_experimental int rte_vhost_extern_callback_register(int vid, struct rte_vhost_user_extern_ops const *const ops, void *ctx)
int rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx, struct rte_vhost_vring *vring)
__rte_experimental int rte_vhost_set_last_inflight_io_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)
__rte_deprecated uint32_t rte_vhost_get_queue_num(int vid)
__rte_experimental int rte_vhost_get_vring_base(int vid, uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx)
__rte_experimental 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_get_mtu(int vid, uint16_t *mtu)
__rte_experimental int rte_vhost_driver_set_protocol_features(const char *path, uint64_t protocol_features)
__rte_experimental int rte_vhost_driver_detach_vdpa_device(const char *path)
uint16_t rte_vhost_get_vring_num(int vid)
int rte_vhost_get_numa_node(int vid)
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_driver_get_queue_num(const char *path, uint32_t *queue_num)
int rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem)
__rte_experimental int rte_vhost_get_vdpa_device_id(int vid)
int rte_vhost_vring_call(int vid, uint16_t vring_idx)
int rte_vhost_get_negotiated_features(int vid, uint64_t *features)
__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)
__rte_experimental int rte_vhost_driver_get_vdpa_device_id(const char *path)
uint32_t rte_vhost_rx_queue_count(int vid, uint16_t qid)
__rte_experimental int rte_vhost_driver_attach_vdpa_device(const char *path, int did)
uint16_t rte_vhost_dequeue_burst(int vid, uint16_t queue_id, struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count)
__rte_experimental int rte_vhost_clr_inflight_desc_packed(int vid, uint16_t vring_idx, uint16_t head)
__rte_experimental int rte_vhost_driver_get_protocol_features(const char *path, uint64_t *protocol_features)
__rte_experimental int rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx, struct rte_vhost_ring_inflight *vring)
__rte_experimental int rte_vhost_get_log_base(int vid, uint64_t *log_base, uint64_t *log_size)
int rte_vhost_driver_get_features(const char *path, uint64_t *features)
int rte_vhost_driver_set_features(const char *path, uint64_t features)
int rte_vhost_get_ifname(int vid, char *buf, size_t len)
__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)
__rte_experimental int rte_vhost_set_inflight_desc_split(int vid, uint16_t vring_idx, uint16_t 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)