[dpdk-dev] [dpdk-users] A question about the link status of the intel E810 nic can not be up?

[wangyunjian]

> -----Original Message-----
> From: Zhang, Qi Z [mailto:qi.z.zhang at intel.com]
> Sent: Monday, January 10, 2022 5:29 PM
> To: wangyunjian <wangyunjian at huawei.com>; dev at dpdk.org; users at dpdk.org;
> Yang, Qiming <qiming.yang at intel.com>
> Cc: Huangshaozhang <huangshaozhang at huawei.com>; dingxiaoxiong
> <dingxiaoxiong at huawei.com>
> Subject: RE: [dpdk-dev] [dpdk-users] A question about the link status of the intel
> E810 nic can not be up?
> 
> 
> 
> > -----Original Message-----
> > From: wangyunjian <wangyunjian at huawei.com>
> > Sent: Monday, January 10, 2022 11:20 AM
> > To: dev at dpdk.org; users at dpdk.org; Yang, Qiming
> > <qiming.yang at intel.com>; Zhang, Qi Z <qi.z.zhang at intel.com>
> > Cc: Huangshaozhang <huangshaozhang at huawei.com>; dingxiaoxiong
> > <dingxiaoxiong at huawei.com>
> > Subject: [dpdk-dev] [dpdk-users] A question about the link status of
> > the intel
> > E810 nic can not be up?
> >
> > Hi, All:
> >
> > I am using Intel E810 with DPDK v21.11 to create a dpdkbond but there
> > is a probability that the failure will occur.
> >
> > During the test, the bonding is repeatedly added and deleted.
> > Sometimes, the link status of the NIC is Down. And if call
> > ice_dev_set_link_up again, the link status of the NIC can be recovered.
> >
> > Alternatively, the problem can be avoided by modifying the ice pmd driver.
> >
> > diff --git a/drivers/net/ice/ice_ethdev.c
> > b/drivers/net/ice/ice_ethdev.c index
> > 13a7a9702a..fcd22e20a5 100644
> > --- a/drivers/net/ice/ice_ethdev.c
> > +++ b/drivers/net/ice/ice_ethdev.c
> > @@ -3604,7 +3604,7 @@ ice_dev_start(struct rte_eth_dev *dev)
> >         ice_dev_set_link_up(dev);
> >
> >         /* Call get_link_info aq commond to enable/disable LSE */
> > -       ice_link_update(dev, 0);
> > +       ice_link_update(dev, 1);
> 
> This looks good to me, it's reasonable to wait for complete right after set link
> up as it is not in an link status change interrupt handling scenario.
> 
> We will try to reproduce this issue, meanwhile could you help on following
> below 2 things.
> 
> 1. share the device ID / firmware version that you met this issue.

# ethtool -i eth16
driver: ice
version: 1.6.4
firmware-version: 3.10 0x8000ad4a 1.3106.0
expansion-rom-version: 
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes

# lspci -n -s 04:00.0
04:00.0 0200: 8086:159b (rev 02)

> 2. send a v2 with reworded title and commit log as a normal patch if you want
> to contribute.

OK, I'll send v2 patch to fix it.

Thanks
> 
> Thanks
> Qi
> 
> >
> >         pf->adapter_stopped = false;