46 lines
1.7 KiB
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46 lines
1.7 KiB
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.. _mellanox-rn:
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Known limitations for the Mellanox SR-IOV plug-in
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-------------------------------------------------
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The Mellanox SR-IOV plug-in is fully integrated
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into Mirantis OpenStack 5.1
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but it has some known limitations:
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* The Mellanox SR-IOV plugin has been tested
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against guest images of the following Linux distributions:
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- CentOS 6.4 with kernel 2.6.32-358.el6.x86
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- Ubuntu 13.10 with kernel 3.11.0-26-generic
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* By default, up to 16 virtual functions (VFs) can be configured.
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To use more VFs in the compute nodes,
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you must make additional configuration changes manually
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or through a script.
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* 3rd party adapters based on the Mellanox chipset may not have SR-IOV enabled
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by default. In such a case, please contact the device manufacturer for
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configuration instructions and for the required firmware.
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* Mellanox OEM adapter cards may be burned with SR-IOV disabled.
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In such cases,
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you may need to burn a special firmware version
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to enable SR-IOV.
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* External network is not configured when changing the ML2 mechanism
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to Mellanox and Open vSwitch.
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When installing Centos HA with Neutron with VLAN
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and changing the ML2 mechanism to Mellanox and Open vSwitch,
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the external network is not configured after deployment.
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See `LP1369988 <https://bugs.launchpad.net/bugs/1369988>`_.
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* Mellanox provides additional information in their
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`HowTo Install Mirantis Fuel 5.1 OpenStack with Mellanox Adapters Support
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<http://community.mellanox.com/docs/DOC-1474>`_ document,
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including example images to use with the Mellanox SR-IOV plugin
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and advanced configuration instructions
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(for example, instructions to increase the number of virtual functions).
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and advanced configuration instructions.
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