NAME

       rte_vhost_device_ops

SYNOPSIS

       #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)

Detailed Description

       Device and vring operations.

       Definition at line 277 of file rte_vhost.h.

Field Documentation

   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.

Author

       Generated automatically by Doxygen for DPDK from the source code.

DPDK                                             Version 24.11.2                         rte_vhost_device_ops(3)