[dpdk-dev] [PATCH 4/4] doc: add switch restart support to fm10k guide

[Mcnamara, John]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Xiao Wang
> Sent: Sunday, October 22, 2017 10:37 PM
> To: dev at dpdk.org
> Cc: Wu, Jingjing <jingjing.wu at intel.com>; Chen, Jing D
> <jing.d.chen at intel.com>; Wang, Xiao W <xiao.w.wang at intel.com>
> Subject: [dpdk-dev] [PATCH 4/4] doc: add switch restart support to fm10k
> guide
> 
> 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.wang at intel.com>


I'd suggest some minor changes as follows:


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 FM100 port to resume network
processing.