Differential D4333

sfxge: retry VF vAdaptor allocation if it fails because of no EVB port yet
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Authored by arybchik on Dec 1 2015, 7:57 AM.

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philip
np
gnn
bz

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rS291590: sfxge: retry VF vAdaptor allocation if it fails because of no EVB port yet

Summary

After an MC reboot, a VF driver may reset before the PF driver has
finished bringing everything back up. This includes the VFs EVB port.
MC_CMD_VADAPTOR_ALLOC is the first MCDI call after an MC reboot to
require the EVB port, so if it fails with MC_CMD_ERR_NO_EVB_PORT,
retry the command a few times after waiting a while.

Submitted by: Mark Spender <mspender at solarflare.com>
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days

Test Plan

Driver build tested. Module loaded/unloaded.
sfxge FreeBSD driver does not support VFs yet, so it is just a preparation.

Diff Detail

Repository

rS FreeBSD src repository - subversion

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Event Timeline

arybchik updated this revision to Diff 10628.Dec 1 2015, 7:57 AM

arybchik retitled this revision from to sfxge: retry VF vAdaptor allocation if it fails because of no EVB port yet.

arybchik updated this object.

arybchik edited the test plan for this revision. (Show Details)

arybchik added reviewers: gnn, philip, bz, np.

Herald added a subscriber: imp. · View Herald TranscriptDec 1 2015, 7:57 AM

philip accepted this revision.Dec 1 2015, 8:33 AM

philip edited edge metadata.

This revision is now accepted and ready to land.Dec 1 2015, 8:33 AM

Closed by commit rS291590: sfxge: retry VF vAdaptor allocation if it fails because of no EVB port yet (authored by arybchik). · Explain WhyDec 1 2015, 3:55 PM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

head/

sys/

dev/

sfxge/

common/

42 lines

Diff 10641

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

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