diff options
Diffstat (limited to 'vnet')
| -rw-r--r-- | vnet/vnet/devices/dpdk/vhost_user.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/vnet/vnet/devices/dpdk/vhost_user.c b/vnet/vnet/devices/dpdk/vhost_user.c index 2ebf48a55b3..c82b37f9927 100644 --- a/vnet/vnet/devices/dpdk/vhost_user.c +++ b/vnet/vnet/devices/dpdk/vhost_user.c @@ -589,6 +589,15 @@ dpdk_vhost_user_set_vring_addr(u32 hw_if_index, u8 idx, u64 desc, \ clib_warning("falied to set vring addr"); } + /* + * Inform the guest that there is no need to inform (kick) the + * host when it adds buffers. kick results in vmexit and will + * incur performance degradation. + * + * The below function sets a flag in used table. Therefore, + * should be initialized after initializing vq->used. + */ + rte_vhost_enable_guest_notification(&xd->vu_vhost_dev, idx, 0); stop_processing_packets(hw_if_index, idx); return 0; |