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_DEQUEUE_ZERO_COPY (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) 40 #ifndef VHOST_USER_PROTOCOL_F_MQ 41 #define VHOST_USER_PROTOCOL_F_MQ 0 44 #ifndef VHOST_USER_PROTOCOL_F_LOG_SHMFD 45 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 48 #ifndef VHOST_USER_PROTOCOL_F_RARP 49 #define VHOST_USER_PROTOCOL_F_RARP 2 52 #ifndef VHOST_USER_PROTOCOL_F_REPLY_ACK 53 #define VHOST_USER_PROTOCOL_F_REPLY_ACK 3 56 #ifndef VHOST_USER_PROTOCOL_F_NET_MTU 57 #define VHOST_USER_PROTOCOL_F_NET_MTU 4 60 #ifndef VHOST_USER_PROTOCOL_F_SLAVE_REQ 61 #define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5 64 #ifndef VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 65 #define VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 7 68 #ifndef VHOST_USER_PROTOCOL_F_PAGEFAULT 69 #define VHOST_USER_PROTOCOL_F_PAGEFAULT 8 72 #ifndef VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 73 #define VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 10 76 #ifndef VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 77 #define VHOST_USER_PROTOCOL_F_HOST_NOTIFIER 11 80 #ifndef VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 81 #define VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 12 85 #ifndef VHOST_USER_F_PROTOCOL_FEATURES 86 #define VHOST_USER_F_PROTOCOL_FEATURES 30 94 uint64_t guest_phys_addr;
95 uint64_t guest_user_addr;
96 uint64_t host_user_addr;
111 struct rte_vhost_inflight_desc_split {
118 struct rte_vhost_inflight_info_split {
122 uint16_t last_inflight_io;
124 struct rte_vhost_inflight_desc_split desc[0];
127 struct rte_vhost_inflight_desc_packed {
140 struct rte_vhost_inflight_info_packed {
145 uint16_t old_free_head;
147 uint16_t old_used_idx;
148 uint8_t used_wrap_counter;
149 uint8_t old_used_wrap_counter;
151 struct rte_vhost_inflight_desc_packed desc[0];
154 struct rte_vhost_resubmit_desc {
159 struct rte_vhost_resubmit_info {
160 struct rte_vhost_resubmit_desc *resubmit_list;
161 uint16_t resubmit_num;
164 struct rte_vhost_ring_inflight {
166 struct rte_vhost_inflight_info_split *inflight_split;
167 struct rte_vhost_inflight_info_packed *inflight_packed;
170 struct rte_vhost_resubmit_info *resubmit_inflight;
173 struct rte_vhost_vring {
175 struct vring_desc *desc;
176 struct vring_packed_desc *desc_packed;
179 struct vring_avail *avail;
180 struct vring_packed_desc_event *driver_event;
183 struct vring_used *used;
184 struct vring_packed_desc_event *device_event;
186 uint64_t log_guest_addr;
200 RTE_VHOST_MSG_RESULT_ERR = -1,
202 RTE_VHOST_MSG_RESULT_OK = 0,
204 RTE_VHOST_MSG_RESULT_REPLY = 1,
206 RTE_VHOST_MSG_RESULT_NOT_HANDLED,
239 int (*new_device)(
int vid);
240 void (*destroy_device)(
int vid);
242 int (*vring_state_changed)(
int vid, uint16_t queue_id,
int enable);
250 int (*features_changed)(
int vid, uint64_t features);
252 int (*new_connection)(
int vid);
253 void (*destroy_connection)(
int vid);
261 void (*guest_notified)(
int vid);
288 for (i = 0; i < mem->nregions; i++) {
289 reg = &mem->regions[i];
290 if (gpa >= reg->guest_phys_addr &&
291 gpa < reg->guest_phys_addr + reg->size) {
292 return gpa - reg->guest_phys_addr +
319 uint64_t gpa, uint64_t *len)
324 for (i = 0; i < mem->nregions; i++) {
325 r = &mem->regions[i];
326 if (gpa >= r->guest_phys_addr &&
327 gpa < r->guest_phys_addr + r->size) {
329 if (
unlikely(*len > r->guest_phys_addr + r->size - gpa))
330 *len = r->guest_phys_addr + r->size - gpa;
332 return gpa - r->guest_phys_addr +
341 #define RTE_VHOST_NEED_LOG(features) ((features) & (1ULL << VHOST_F_LOG_ALL)) 382 uint64_t offset, uint64_t len);
384 int rte_vhost_enable_guest_notification(
int vid, uint16_t queue_id,
int enable);
393 int rte_vhost_driver_unregister(
const char *path);
501 uint64_t protocol_features);
516 uint64_t *protocol_features);
545 int rte_vhost_driver_callback_register(
const char *path,
664 struct rte_mbuf **pkts, uint16_t count);
715 struct rte_vhost_vring *vring);
732 struct rte_vhost_ring_inflight *vring);
775 uint16_t head, uint16_t last, uint16_t *inflight_entry);
792 uint16_t vring_idx, uint16_t idx);
812 uint16_t vring_idx, uint16_t head);
831 uint16_t last_used_idx, uint16_t idx);
908 uint16_t *last_avail_idx, uint16_t *last_used_idx);
931 uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx);
950 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_slave_config_change(int vid, bool need_reply)
__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)