This patch documents how DPDK app should handle the event of switch quit-restart to resume its network without an app-level restart.
Signed-off-by: Xiao Wang <xiao.w.w...@intel.com> --- v2: - Improve the wording. --- doc/guides/nics/fm10k.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/doc/guides/nics/fm10k.rst b/doc/guides/nics/fm10k.rst index 7fc4862..b47fc0d 100644 --- a/doc/guides/nics/fm10k.rst +++ b/doc/guides/nics/fm10k.rst @@ -161,6 +161,17 @@ FM10000 PMD driver. The switch driver can be acquired from Intel support. Only Testpoint is validated with DPDK, the latest version that has been validated with DPDK is 4.1.6. +Support for Switch Restart +~~~~~~~~~~~~~~~~~~~~~~~~~~ + +For FM10000 multi host based design a DPDK app running in the VM or host needs +to be aware of the switch's state since it may undergo a quit-restart. When +the switch goes down the DPDK app will receive a LSC event indicating link +status down, and the app should stop the worker threads that are polling on +the Rx/Tx queues. When switch comes up, a LSC event indicating ``LINK_UP`` is +sent to the app, which can then restart the FM10000 port to resume network +processing. + CRC striping ~~~~~~~~~~~~ -- 1.8.3.1
