vhost_user_block/src/lib.rs

9 // SPDX-License-Identifier: (Apache-2.0 AND BSD-3-Clause)
45 // Polling for 50us should be enough to cover for the device latency
78 pub const SYNTAX: &str = "vhost-user-block backend parameters \
84     fn from(e: Error) -> Self {  in from()
106     ) -> Result<Self> {  in new()
121     ) -> bool {  in process_queue()
213     ) -> Result<Self> {  in new()
237             seg_max: 128 - 2,  in new()
300     fn num_queues(&self) -> usize {  in num_queues()
304     fn max_queue_size(&self) -> usize {  in max_queue_size()
308     fn features(&self) -> u64 {  in features()
330     fn protocol_features(&self) -> VhostUserProtocolFeatures {  in protocol_features()
348     ) -> VhostUserBackendResult<()> {  in handle_event()
374                     // vm-virtio's Queue implementation only checks avail_index  in handle_event()
398     fn get_config(&self, _offset: u32, _size: u32) -> Vec<u8> {  in get_config()
402     fn set_config(&mut self, offset: u32, data: &[u8]) -> result::Result<(), io::Error> {  in set_config()
416     fn exit_event(&self, thread_index: usize) -> Option<EventFd> {  in exit_event()
427     fn queues_per_thread(&self) -> Vec<u64> {  in queues_per_thread()
434     ) -> VhostUserBackendResult<()> {  in update_memory()
450     fn parse(backend: &str) -> Result<Self> {  in parse()
453             .add("path")  in parse()
454             .add("readonly")  in parse()
455             .add("direct")  in parse()
456             .add("num_queues")  in parse()
457             .add("queue_size")  in parse()
458             .add("socket")  in parse()
459             .add("poll_queue");  in parse()
528     let name = "vhost-user-blk-backend";  in start_block_backend()
535             "Failed to start daemon for vhost-user-block with error: {:?}\n",  in start_block_backend()