Bug 596385 - implement dev_disable_lro for RHEL5 [rhel-5.5.z]
implement dev_disable_lro for RHEL5 [rhel-5.5.z]
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
5.6
All Linux
high Severity high
: rc
: ---
Assigned To: Jiri Pirko
Red Hat Kernel QE team
: ZStream
Depends On: 582367
Blocks: 619915
  Show dependency treegraph
 
Reported: 2010-05-26 13:15 EDT by RHEL Product and Program Management
Modified: 2015-05-04 21:20 EDT (History)
12 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Large-Receive Offload (LRO) is a performance optimization that enables the kernel to fetch and process, as a unit, more than one received packet from a network device. It was previously not possible to dynamically disable LRO for devices in a forwanding mode. This has been fixed with this update so that the kernel is able to dynamically disable LRO for devices in a forwarding state, or which had had LRO turned on manually.
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Clone Of:
Environment:
Last Closed: 2010-07-01 14:29:43 EDT
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0504 normal SHIPPED_LIVE Important: kernel security and bug fix update 2010-07-01 14:26:58 EDT

  None (edit)
Description RHEL Product and Program Management 2010-05-26 13:15:44 EDT
This bug has been copied from bug #582367 and has been proposed
to be backported to 5.5 z-stream (EUS).
Comment 3 Jiri Pirko 2010-06-07 09:31:23 EDT
in 2.6.18-194.6.1.el5
Comment 6 Neil Horman 2010-06-28 07:09:14 EDT
You should be able to force LRO off for various drivers by adding them to a bridge interface.  Detecting if it works will ususaly require you to look in the message log for various informational driver messages about lro being disabled.
Comment 9 Douglas Silas 2010-06-28 16:27:22 EDT
Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.

New Contents:
Large-Receive Offload (LRO) is a performance optimization that enables the kernel to fetch and process, as a unit, more than one received packet from a network device. It was previously not possible to dynamically disable LRO for devices in a forwanding mode. This has been fixed with this update so that the kernel is able to dynamically disable LRO for devices in a forwarding state, or which had had LRO turned on manually.
Comment 11 errata-xmlrpc 2010-07-01 14:29:43 EDT
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2010-0504.html

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