| Message ID | 20200212132214.2086-1-tomaszx.konieczny@intel.com |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | [ovs-dev,1/1] docs: Add flow control on i40e issue | expand |
On Wed, Feb 12, 2020 at 02:22:14PM +0100, Tomasz Konieczny wrote: > There is an issue with flow control configuration on i40e devices > and it has a work around. We add this to documentation as known issue > until a permanent solution is developed. > Can you add pointers to how to set that to interrupt mode? fbl > Signed-off-by: Tomasz Konieczny <tomaszx.konieczny@intel.com> > --- > Documentation/intro/install/dpdk.rst | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/intro/install/dpdk.rst b/Documentation/intro/install/dpdk.rst > index dbf88ec..9bc29f4 100644 > --- a/Documentation/intro/install/dpdk.rst > +++ b/Documentation/intro/install/dpdk.rst > @@ -687,6 +687,12 @@ Limitations > around is temporary and is expected to be removed once a method is provided > by DPDK to query the upper bound MTU value for a given device. > > +- Flow Control: When using i40e devices (Intel(R) 700 Series) it is recommended > + to set Link State Change detection to interrupt mode. Otherwise it has been > + observed that using the default polling mode, flow control changes may not be > + applied, and flow control states will not be reflected correctly. > + The issue is under investigation, this is a temporary work around. > + > Reporting Bugs > -------------- > > -- > 2.7.4 > > _______________________________________________ > dev mailing list > dev@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-dev
diff --git a/Documentation/intro/install/dpdk.rst b/Documentation/intro/install/dpdk.rst index dbf88ec..9bc29f4 100644 --- a/Documentation/intro/install/dpdk.rst +++ b/Documentation/intro/install/dpdk.rst @@ -687,6 +687,12 @@ Limitations around is temporary and is expected to be removed once a method is provided by DPDK to query the upper bound MTU value for a given device. +- Flow Control: When using i40e devices (Intel(R) 700 Series) it is recommended + to set Link State Change detection to interrupt mode. Otherwise it has been + observed that using the default polling mode, flow control changes may not be + applied, and flow control states will not be reflected correctly. + The issue is under investigation, this is a temporary work around. + Reporting Bugs --------------
There is an issue with flow control configuration on i40e devices and it has a work around. We add this to documentation as known issue until a permanent solution is developed. Signed-off-by: Tomasz Konieczny <tomaszx.konieczny@intel.com> --- Documentation/intro/install/dpdk.rst | 6 ++++++ 1 file changed, 6 insertions(+)