Differential D18390

sfxge(4): use n Tx queues instead of n + 2 on EF10 HW
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Authored by arybchik on Nov 30 2018, 9:04 AM.

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gnn
philip
nonesuch_longcount.org

Commits

rS342529: MFC r341785
rS342455: MFC r341785
rS342352: MFC r341785
rS341785: sfxge(4): use n Tx queues instead of n + 2 on EF10 HW

Summary

On EF10 HW we can avoid sending packets without checksum offload
or with IP-only checksum offload to dedicated queues. Instead, we
can use option descriptors to change offload policy on any queue
during runtime. Thus, we don't need to create two dedicated queues.

Submitted by: Ivan Malov <Ivan.Malov at oktetlabs.ru>
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
TCP traffic w/o checksum offload is distributed using RSS

Diff Detail

Repository

rS FreeBSD src repository - subversion

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Event Timeline

arybchik created this revision.Nov 30 2018, 9:04 AM

Harbormaster completed remote builds in B21278: Diff 51427.Nov 30 2018, 9:07 AM

This revision was not accepted when it landed; it landed in state Needs Review.Dec 10 2018, 9:36 AM

Closed by commit rS341785: sfxge(4): use n Tx queues instead of n + 2 on EF10 HW (authored by arybchik). · Explain Why

This revision was automatically updated to reflect the committed changes.

Herald added a subscriber: imp. · View Herald TranscriptDec 10 2018, 9:36 AM

Revision Contents
Changeset List

Path

Size

head/

sys/

dev/

sfxge/

2 lines

5 lines

7 lines

7 lines

153 lines

Diff 51805

head/sys/dev/sfxge/sfxge.h

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head/sys/dev/sfxge/sfxge.c

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head/sys/dev/sfxge/sfxge_ev.c

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head/sys/dev/sfxge/sfxge_tx.h

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head/sys/dev/sfxge/sfxge_tx.c

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