[Lencerf]

<IoUring as Backend<D>>::reset() was a no-op and VirtioIoUring lacked a reset callback, so resetting a tap::Net device backed by io_uring kept extra multiqueue tap sockets open instead of returning to a single active queue pair (VirtIO 1.4 Sec 5.1.9.5.6.2: "After initialization of reset, the device MUST queue packets only on receiveq1").

Add a default VirtioIoUring::reset(&mut self) {} method, call it from IoUring::reset(), and truncate tap_sockets to 1 while clearing driver_feature in both VirtioIoUring::reset() and VirtioMio::reset().

The control queue framing fix that was also in this PR is now a separate change.

[coveralls]

Coverage Report for CI Build 43393239769

Coverage increased (+0.1%) to 44.177%

Details

• Coverage increased (+0.1%) from the base build.
• Patch coverage: 1 uncovered change across 1 file (7 of 8 lines covered, 87.5%).
• 2 coverage regressions across 1 file.

Uncovered Changes

File	Changed	Covered	%
alioth/src/virtio/worker/io_uring.rs	3	2	66.67%
Total (2 files)	8	7	87.5%

Coverage Regressions

2 previously-covered lines in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
alioth/src/virtio/dev/vsock/uds_vsock.rs	2	81.22%

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Coverage Stats

Relevant Lines:	16564
Covered Lines:	7105
Line Coverage:	42.89%
Relevant Branches:	1776
Covered Branches:	997
Branch Coverage:	56.14%
Branches in Coverage %:	Yes
Coverage Strength:	900.81 hits per line

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💛 - Coveralls