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sfxge(4): ensure EvQ poll stops when abort is requested
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Authored by arybchik on Nov 21 2018, 11:59 AM.

Details

Summary

If an event handler requested an abort, only the inner loop was
guarenteed to be broken out of - the outer loop could continue
if total == batch.

Fix this by poisoning batch to ensure it is different to total.

Submitted by: Mark Spender <mspender at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week

Test Plan

amd64 tinderbox kernel builds tested
driver loaded/unloaded, interfaces up/down, traffic works fine

Diff Detail

Repository
rS FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

arybchik created this revision.Nov 21 2018, 11:59 AM
This revision was not accepted when it landed; it landed in state Needs Review.Nov 30 2018, 7:11 AM
This revision was automatically updated to reflect the committed changes.