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sfxge(4): improve PCIe link speed and width check
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Authored by arybchik on May 14 2016, 6:31 AM.
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philip
np
gnn
bz
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rS299904: sfxge(4): improve PCIe link speed and width check
Summary

Perform a more accurate check of whether the PCIe bandwidth is
sufficient for the current/supported port modes.

Give a different warning if there is sufficient bandwidth to achieve
line rate, but the link is not fast enough for optimal latency.

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

Test Plan

Build sanity checked. Driver loaded.

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rS FreeBSD src repository - subversion
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arybchik updated this revision to Diff 16329.May 14 2016, 6:31 AM
arybchik retitled this revision from to sfxge(4): improve PCIe link speed and width check.
arybchik updated this object.
arybchik edited the test plan for this revision. (Show Details)
arybchik added reviewers: gnn, philip, np, bz.
Herald added a subscriber: imp. · View Herald TranscriptMay 14 2016, 6:31 AM
Closed by commit rS299904: sfxge(4): improve PCIe link speed and width check (authored by arybchik). · Explain WhyMay 16 2016, 6:39 AM
This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

PathSize
head/
sys/
dev/
sfxge/
common/
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Diff 16373

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head/sys/dev/sfxge/common/ef10_impl.h

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head/sys/dev/sfxge/common/ef10_nic.c

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head/sys/dev/sfxge/common/efx.h

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head/sys/dev/sfxge/common/efx_nic.c

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head/sys/dev/sfxge/common/hunt_nic.c

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head/sys/dev/sfxge/common/medford_nic.c

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head/sys/dev/sfxge/common/siena_nic.c

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