> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Qiming Yang
> Sent: Thursday, October 13, 2016 2:07 PM
> To: dev at dpdk.org
> Cc: Yang, Qiming <qiming.yang at intel.com>
> Subject: [dpdk-dev] [PATCH 2/2] net/i40e: fix VF bonded device link down
>
> Originally, using DPDK as host driver, when VF bonded device
> uses I40E_VIRTCHNL_OP_GET_LINK_STAT to query PF the link status,
If VF device is used as slave of a bond device, it will be polled periodically
though alarm. Interrupt is involved here.
And then VF will send I40E_VIRTCHNL_OP_GET_LINK_STAT message to PF to get the
status. The response is handled by interrupt callback. Interrupt is involved
here again. That's what bond device cannot bring up.
> This patch uses PF to notify link status instead of VF query.
This patch changes like that remove I40E_VIRTCHNL_OP_GET_LINK_STAT message,
link status in VF driver is updated when PF driver notify it, and VF stores the
links status locally. VF driver just returns the local status when being
required.
> Fixes: 5c9222058df7 ("i40e: move to drivers/net/")
The same comments as your previous patch. It is not exact commit introduced
this issue.
Thanks
Jingjing
