| 467 | |
| 468 | impl VhostUserBlkBackendConfig { |
| 469 | fn parse(backend: &str) -> Result<Self> { |
| 470 | let mut parser = OptionParser::new(); |
| 471 | parser |
| 472 | .add("path") |
| 473 | .add("readonly") |
| 474 | .add("direct") |
| 475 | .add("num_queues") |
| 476 | .add("queue_size") |
| 477 | .add("socket") |
| 478 | .add("poll_queue"); |
| 479 | parser.parse(backend).map_err(Error::FailedConfigParse)?; |
| 480 | |
| 481 | let path = parser.get("path").ok_or(Error::PathParameterMissing)?; |
| 482 | let readonly = parser |
| 483 | .convert::<Toggle>("readonly") |
| 484 | .map_err(Error::FailedConfigParse)? |
| 485 | .unwrap_or(Toggle(false)) |
| 486 | .0; |
| 487 | let direct = parser |
| 488 | .convert::<Toggle>("direct") |
| 489 | .map_err(Error::FailedConfigParse)? |
| 490 | .unwrap_or(Toggle(false)) |
| 491 | .0; |
| 492 | let num_queues = parser |
| 493 | .convert("num_queues") |
| 494 | .map_err(Error::FailedConfigParse)? |
| 495 | .unwrap_or(1); |
| 496 | let socket = parser.get("socket").ok_or(Error::SocketParameterMissing)?; |
| 497 | let poll_queue = parser |
| 498 | .convert::<Toggle>("poll_queue") |
| 499 | .map_err(Error::FailedConfigParse)? |
| 500 | .unwrap_or(Toggle(true)) |
| 501 | .0; |
| 502 | let queue_size = parser |
| 503 | .convert("queue_size") |
| 504 | .map_err(Error::FailedConfigParse)? |
| 505 | .unwrap_or(1024); |
| 506 | |
| 507 | Ok(VhostUserBlkBackendConfig { |
| 508 | path, |
| 509 | socket, |
| 510 | num_queues, |
| 511 | queue_size, |
| 512 | readonly, |
| 513 | direct, |
| 514 | poll_queue, |
| 515 | }) |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | pub fn start_block_backend(backend_command: &str) { |