Page MenuHomeFreeBSD
Differential D27922

if_vtnet: Schedule Rx task if pending items when enabling interrupt
ClosedPublic
Actions

Authored by bryanv on Jan 2 2021, 9:17 PM.
Tags
None
Referenced Files
Unknown Object (File)
Sat, Dec 14, 2:23 PM
Unknown Object (File)
Sat, Dec 14, 1:02 PM
Unknown Object (File)
Tue, Dec 10, 7:46 PM
Unknown Object (File)
Fri, Dec 6, 1:47 PM
Unknown Object (File)
Nov 6 2024, 4:29 PM
Unknown Object (File)
Oct 5 2024, 6:09 PM
Unknown Object (File)
Oct 5 2024, 2:01 PM
Unknown Object (File)
Oct 5 2024, 11:57 AM
View All 40 Files
Subscribers
imp

Details

Reviewers
grehan
Commits
rG4f18e23f8432: if_vtnet: Schedule Rx task if pending items when enabling interrupt
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
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable

Event Timeline

bryanv created this revision.Jan 2 2021, 9:17 PM
bryanv held this revision as a draft.
Herald added a subscriber: imp. · View Herald TranscriptJan 2 2021, 9:17 PM
Harbormaster completed remote builds in B35887: Diff 81545.Jan 2 2021, 9:17 PM
bryanv added a reviewer: grehan.Jan 2 2021, 9:17 PM
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
Closed by commit rG4f18e23f8432: if_vtnet: Schedule Rx task if pending items when enabling interrupt (authored by bryanv). · Explain Why
This revision was automatically updated to reflect the committed changes.
bryanv added a commit: rG4f18e23f8432: if_vtnet: Schedule Rx task if pending items when enabling interrupt.

Revision Contents
Changeset List

PathSize
sys/
dev/
virtio/
network/
14 lines

Diff 82548

View Options

sys/dev/virtio/network/if_vtnet.c

Loading...