if_epair: support IFCAP_MEXTPG
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Authored by kp on Jul 6 2026, 2:05 PM.

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rGc38abd64dbc1: if_epair: support IFCAP_MEXTPG

Summary

Enable IFCAP_MEXTPG by default, which may bring performance benefits.
Allow it to be disabled, and when disabled assert that we do not receive
any mbufs with M_EXTPG set. This is useful for testing.
Default the tests to disabling MEXTPG support.

Sponsored by: Rubicon Communications, LLC ("Netgate")

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

kp created this revision.Jul 6 2026, 2:05 PM

Herald added subscribers: glebius, melifaro, ae, imp. · View Herald TranscriptJul 6 2026, 2:05 PM

kp requested review of this revision.Jul 6 2026, 2:05 PM

Harbormaster completed remote builds in B74545: Diff 181357.Jul 6 2026, 2:05 PM

kp mentioned this in D58021: pf: fix a crash on sendfile().Jul 6 2026, 2:06 PM

takahiro.kurosawa_gmail.com added a subscriber: takahiro.kurosawa_gmail.com.Jul 6 2026, 8:55 PM

takahiro.kurosawa_gmail.com added a child revision: D58021: pf: fix a crash on sendfile().Jul 7 2026, 4:03 AM

Looks good to me.

sys/net/if_epair.c
354	Style bit.

This revision is now accepted and ready to land.Jul 8 2026, 3:46 AM

Closed by commit rGc38abd64dbc1: if_epair: support IFCAP_MEXTPG (authored by kp). · Explain WhyJul 8 2026, 7:52 AM

This revision was automatically updated to reflect the committed changes.

kp added a commit: rGc38abd64dbc1: if_epair: support IFCAP_MEXTPG.

Revision Contents
Changeset List

Path

Size

sys/

net/

if_epair.c

7 lines

tests/

sys/

common/

vnet.subr

4 lines

Diff 181522

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sys/net/if_epair.c