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Diffstat (limited to 'doc/guides/rel_notes/release_18_11.rst')
| -rw-r--r-- | doc/guides/rel_notes/release_18_11.rst | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/doc/guides/rel_notes/release_18_11.rst b/doc/guides/rel_notes/release_18_11.rst index 51d00758..32ff0e5c 100644 --- a/doc/guides/rel_notes/release_18_11.rst +++ b/doc/guides/rel_notes/release_18_11.rst @@ -279,6 +279,25 @@ New Features their telemetry via a UNIX socket in JSON. The JSON can be consumed by any Service Assurance agent, such as CollectD. +* **Updated KNI kernel module, rte_kni library, and KNI sample application.** + + Updated the KNI kernel module with a new kernel module parameter, + ``carrier=[on|off]`` to allow the user to control the default carrier + state of KNI kernel network interfaces. The default carrier state + is now set to ``off``, so the interfaces cannot be used until the + carrier state is set to ``on`` via ``rte_kni_update_link`` or + by writing ``1`` to ``/sys/devices/virtual/net/<iface>/carrier``. + In previous versions the default carrier state was left undefined. + See :doc:`../prog_guide/kernel_nic_interface` for more information. + + Added the new API function ``rte_kni_update_link`` to allow the user + to set the carrier state of the KNI kernel network interface. + + Added a new command line flag ``-m`` to the KNI sample application to + monitor and automatically reflect the physical NIC carrier state to the + KNI kernel network interface with the new ``rte_kni_update_link`` API. + See :doc:`../sample_app_ug/kernel_nic_interface` for more information. + * **Added ability to switch queue deferred start flag on testpmd app.** Added a console command to testpmd app, giving ability to switch @@ -385,6 +404,20 @@ API Changes * eventdev: Type of 2nd parameter to ``rte_event_eth_rx_adapter_caps_get()`` has been changed from uint8_t to uint16_t. +* kni: By default, interface carrier status is ``off`` which means there won't + be any traffic. It can be set to ``on`` via ``rte_kni_update_link()`` API + or via ``sysfs`` interface: + ``echo 1 > /sys/class/net/vEth0/carrier``. + Note interface should be ``up`` to be able to read/write sysfs interface. + When KNI sample application is used, ``-m`` parameter can be used to + automatically update the carrier status for the interface. + +* kni: When ethtool support enabled (``CONFIG_RTE_KNI_KMOD_ETHTOOL=y``) + ethtool commands ``ETHTOOL_GSET & ETHTOOL_SSET`` are no more supported for the + kernels that has ``ETHTOOL_GLINKSETTINGS & ETHTOOL_SLINKSETTINGS`` support. + This means ``ethtool "-a|--show-pause", "-s|--change"`` won't work, and + ``ethtool <iface>`` output will have less information. + ABI Changes ----------- @@ -532,6 +565,8 @@ Known Issues driver; the Linux netvsc device must be brought up before the netvsc device is unbound and passed to the DPDK. +* IBM Power8 is not supported by this release of DPDK. IBM Power9 is supported. + Tested Platforms ---------------- |