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Differential D30073

e1000: Clean up igb_txrx
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Authored by kbowling on May 1 2021, 11:34 PM.
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Details

Reviewers
markj
marius
grehan
gallatin
erj
Group Reviewers
Intel Networking
Commits
rGa1b9408f97d1: e1000: Add missing branch prediction
rG0861c2c695a7: e1000: Clean up igb_txrx
rGb91bb9b07f75: e1000: Add missing branch prediction
rG4ccafcfc8693: e1000: Clean up igb_txrx
rG9fd0cda92d33: e1000: Add missing branch prediction
rG41f02257146d: e1000: Clean up igb_txrx
Summary

The intention here is to reduce differences with D30072. The main functional change is logical simplification in igb_rx_checksum.

Test Plan

Tested on I210 lagg with iperf3 etc

Diff Detail

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Event Timeline

kbowling requested review of this revision.May 1 2021, 11:34 PM
kbowling created this revision.
gallatin added inline comments.May 2 2021, 3:50 PM
sys/dev/e1000/igb_txrx.c
530

Maybe this is also worth a __predict_false()

534

I would not use a __predict here, as there is no v6 l3 checksum, so I assume that v6 packets would take the unpredicted path, and be penalized.

kbowling updated this revision to Diff 88931.May 10 2021, 4:06 AM

Thanks for catching those mistakes. Can you take a look, I'm happy with this at the moment.

markj accepted this revision.May 10 2021, 2:52 PM

Looks ok to me aside from the comments.

sys/dev/e1000/igb_txrx.c
494

This assignment isn't needed.

544

Indentation here should be by four spaces.

This revision is now accepted and ready to land.May 10 2021, 2:52 PM
gallatin accepted this revision.May 10 2021, 3:05 PM
kbowling mentioned this in D31227: igc: sync igc_txrx with igb.Jul 20 2021, 6:52 AM
Closed by commit rG41f02257146d: e1000: Clean up igb_txrx (authored by Kevin Bowling <kbowling@FreeBSD.org>). · Explain WhyJul 20 2021, 7:12 AM
This revision was automatically updated to reflect the committed changes.
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rG41f02257146d: e1000: Clean up igb_txrx.
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rG9fd0cda92d33: e1000: Add missing branch prediction.Jul 20 2021, 7:23 AM
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rG4ccafcfc8693: e1000: Clean up igb_txrx.Aug 3 2021, 2:05 AM
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rGb91bb9b07f75: e1000: Add missing branch prediction.
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rG0861c2c695a7: e1000: Clean up igb_txrx.Aug 3 2021, 2:12 AM
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rGa1b9408f97d1: e1000: Add missing branch prediction.

Revision Contents
Changeset List

PathSize
sys/
dev/
e1000/
113 lines

Diff 88931

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sys/dev/e1000/igb_txrx.c

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