Bug ID 882549: Sock driver does not use multiple queues in unsupported environments

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP MA-VE(all modules)

Known Affected Versions:
14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1

Fixed In:
16.1.0, 16.0.1.2, 15.1.4, 14.1.4.3

Opened: Feb 19, 2020

Severity: 3-Major

Symptoms

In some unsupported environments, the underlying sock driver uses only only 1 queue. You can confirm whether it does so by executing the tmctl command to check the rxq column (which shows 0): tmctl -d blade -i tmm/ndal_rx_stats' and You can verify this on the tx side as well.

Impact

When multi-q is present, the use of single queue can impact performance when using the sock driver.

Conditions

This occurs in certain unsupported environments. Note: When you run 'ethtool -l', you can see: 'command not supported'.

Workaround

Use other available drivers. You can check the available drivers by executing the tmctl command: tmctl -d blade -i tmm/device_probed

Fix Information

Fixed an issue with the sock driver.

Behavior Change

Guides & references

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