Hi Gregory,
On Wed, 24 May 2017 12:50:19 +0300, Gregory Etelson <greg...@weka.io> wrote:
> Hello,
>
> In my tests DPDK-17.05.0 process queries link state with rte_eth_link_get()
> each 50 msec
> during 5-20 MB/sec IOs flow.
> I turn Ethernet switch port down and up and check IXGBE VF PMD reaction to
> link state changes.
> VF PMD correctly recognize link down events but may miss link up.
> When the fault occurs, subsequent calls to rte_eth_link_get will return
> link_status == 0 forever.
> I need to reset DPDK process to get correct link state value.
> My debugging shows that in case of the fault, mbx->ops.read(hw, &in_msg, 1,
> 0) in ixgbe_check_mac_link_vf
> keeps returning non-zero value
It looks there is at least one issue with
commit c12d22f65b13 ("net/ixgbe: ensure link status is updated")
Someone already complained about a problem related to the link status
on ixgbe (which is probably different than yours):
http://dpdk.org/ml/archives/dev/2017-May/066238.html
Anyway, maybe you can try to revert this patch and see if it
solves your issue?
Thanks
Olivier
