Hi,
> -----Original Message----- > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Fan Zhang > Sent: Thursday, March 8, 2018 8:18 PM > To: dev@dpdk.org > Cc: Glynn, Michael J <michael.j.gl...@intel.com>; Zhang, Roy Fan > <roy.fan.zh...@intel.com>; sta...@dpdk.org; Zhang, Helin > <helin.zh...@intel.com>; Liang, Cunming <cunming.li...@intel.com>; > Chilikin, Andrey <andrey.chili...@intel.com> > Subject: [dpdk-dev] [PATCH v2] drivers/i40e: fix link update no wait > > Fixes: 263333bbb7a9 ("i40e: fix link status timeout") > Cc: cunming.li...@intel.com > Cc: sta...@dpdk.org > > In i40e_dev_link_update() the driver obtains the link status info via admin > queue command despite of "no_wait" flag. This requires relatively long time > and may be a problem to some application such as ovs-dpdk > (https://bugzilla.redhat.com/show_bug.cgi?id=1551761). > > This patch aims to fix the problem by using a different approach of obtaining > link status for i40e NIC without waiting. > Instead of getting the link status via admin queue command, this patch > reads the link status registers to accelerate the procedure. > > Signed-off-by: Fan Zhang <roy.fan.zh...@intel.com> > Signed-off-by: Andrey Chilikin <andrey.chili...@intel.com> Acked-by: Wenzhuo Lu <wenzhuo...@intel.com>
