[ovs-dev] [PATCH 1/1] docs: Add flow control on i40e issue

[Tomasz Konieczny]

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 at 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
 --------------
 
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2.7.4