Re: [dpdk-dev] Link status issue with i40e firmware 7.0x

["Xing, Beilei" <beilei.xing@intel.com>]

> -----Original Message-----
> From: David Marchand [mailto:david.marchand@redhat.com]
> Sent: Wednesday, October 30, 2019 10:21 PM
> To: Xing, Beilei <beilei.xing@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: dev <dev@dpdk.org>; Jean Hsiao <jhsiao@redhat.com>; Christophe
> Fontaine <cfontain@redhat.com>
> Subject: Link status issue with i40e firmware 7.0x
> 
> Hello,
> 
> We recently upgraded a XXV710 nic on a Dell R740 server (running RHEL
> 7.7) to firmware version 7.00.
> 
> # ethtool -i enp59s0f0
> driver: i40e
> version: 2.8.10-k
> firmware-version: 7.00 0x80004cf8 1.2154.0
> expansion-rom-version:
> bus-info: 0000:3b:00.0
> supports-statistics: yes
> supports-test: yes
> supports-eeprom-access: yes
> supports-register-dump: yes
> supports-priv-flags: yes
> 
> 
> Following this upgrade, using the nic with dpdk only works once.
> Restarting testpmd (dpdk 18.11.2) ends up with all ports reporting that link is
> down, and indeed, the other side of the cable reports that there is no light.

Hi,

Sorry we didn't meet this problem before, you can find the FW support for help.

BR,
Beilei

> 
> I tried with the 19.11-rc1 tag, same behavior.
> 
> To restore connectivity, the workaround is to unbind the device from vfio-pci,
> bind it again to the i40e kernel driver, and bind it back to vfio-pci.
> 
> 
> We noticed a question on Intel forum:
> https://forums.intel.com/s/question/0D50P00004OjvP2SAJ/xxv7102-how-to-
> rollbackdowngrade-firmware-to-version-601-from-version-700
> But no public solution in this forum.
> 
> 
> We are trying to downgrade the firmware to version 6.8x or 6.0x but so far, we
> did not manage to do this downgrade.
> 
> 
> Any help appreciated.
> 
> Thanks.
> 
> --
> David Marchand