[dpdk-dev] [PATCH v2] net/ixgbevf: add an option pflink_fullchk to get link status nowait

[Scott Daniels]

Acked-by: Scott Daniels daniels at research.att.com


On Fri, 7 Jun 2019, Haiyue Wang wrote:

> To get the VF's link status by calling 'rte_eth_link_get_nowait()', the
> VF not only check PF's physical link status, but also check the mailbox
> running status. And mailbox checking will generate mailbox interrupt in
> PF, it will be worse if many VFs are running in the system, the PF will
> have to handle many interrrupts.
>
> Normally, checking the PF's physical link status is enough for nowait.
> For different scenarios, adding an 'pflink_fullchk' option to control
> whether to check the link fully or not.
>
> Fixes: 91546fb62e67 ("net/ixgbevf: fix link state")
> Cc: stable at dpdk.org
>
> Signed-off-by: Haiyue Wang <haiyue.wang at intel.com>