DPDK 25.03.0-rc0
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#include <rte_vhost.h>
Data Fields | |
int(* | new_device )(int vid) |
void(* | destroy_device )(int vid) |
int(* | vring_state_changed )(int vid, uint16_t queue_id, int enable) |
int(* | features_changed )(int vid, uint64_t features) |
void(* | guest_notified )(int vid) |
bool(* | guest_notify )(int vid, uint16_t queue_id) |
Device and vring operations.
Definition at line 277 of file rte_vhost.h.
int(* new_device) (int vid) |
Add device.
Definition at line 278 of file rte_vhost.h.
void(* destroy_device) (int vid) |
Remove device.
Definition at line 279 of file rte_vhost.h.
int(* vring_state_changed) (int vid, uint16_t queue_id, int enable) |
triggered when a vring is enabled or disabled
Definition at line 281 of file rte_vhost.h.
int(* features_changed) (int vid, uint64_t features) |
Features could be changed after the feature negotiation. For example, VHOST_F_LOG_ALL will be set/cleared at the start/end of live migration, respectively. This callback is used to inform the application on such change.
Definition at line 289 of file rte_vhost.h.
void(* guest_notified) (int vid) |
This callback gets called each time a guest gets notified about waiting packets. This is the interrupt handling through the eventfd_write(callfd), which can be used for counting these "slow" syscalls.
Definition at line 300 of file rte_vhost.h.
bool(* guest_notify) (int vid, uint16_t queue_id) |
If this callback is registered, notification to the guest can be handled by the front-end calling rte_vhost_notify_guest(). If it's not handled, 'false' should be returned. This can be used to remove the "slow" eventfd_write() syscall from the datapath.
Definition at line 308 of file rte_vhost.h.