Drop ixl rx lock during TCP LRO
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Authored by kbowling on Jul 25 2017, 1:17 AM.

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imp

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sbruno
erj

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Intel Networking

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rS321631: Drop IXL RX lock during TCP_LRO, fixes LOR mahem while holding the RX

Summary

There is LOR mayhem while holding the NIC's rx queue lock when the upper stack is called inside TCP LRO

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rS FreeBSD src repository - subversion

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Event Timeline

kbowling created this revision.Jul 25 2017, 1:17 AM

Herald added subscribers: ae, imp. · View Herald TranscriptJul 25 2017, 1:17 AM

sbruno accepted this revision.Jul 27 2017, 9:28 PM

This revision is now accepted and ready to land.Jul 27 2017, 9:28 PM

erj accepted this revision.Jul 27 2017, 9:45 PM

Closed by commit rS321631: Drop IXL RX lock during TCP_LRO, fixes LOR mahem while holding the RX (authored by sbruno). · Explain WhyJul 27 2017, 11:01 PM

This revision was automatically updated to reflect the committed changes.

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Path

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head/

sys/

dev/

ixl/

ixl_txrx.c

7 lines

Diff 31285

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head/sys/dev/ixl/ixl_txrx.c

Drop ixl rx lock during TCP LROClosedPublicActions