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if_vtnet: Schedule Rx task if pending items when enabling interrupt
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Authored by bryanv on Jan 2 2021, 9:17 PM.
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Details

Summary

Prior to V1, the driver would enable interupts and then notify the
host that DRIVER_OK. Since for V1, DRIVER_OK needs to be set before
notifying the virtqueues, there may be items in the queues waiting
to be processed by the time interrupts are enabled.

This fixes a bug where the first Rx queue would appear stuck, only
being fixable by an interface down/up.

Diff Detail

Repository
rS FreeBSD src repository - subversion
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No Test Coverage
Build Status
Buildable 35887
Build 32776: arc lint + arc unit

Event Timeline

bryanv held this revision as a draft.
bryanv published this revision for review.Jan 2 2021, 10:05 PM
This revision was not accepted when it landed; it landed in state Needs Review.Jan 19 2021, 5:12 AM
This revision was automatically updated to reflect the committed changes.