[dpdk-dev] [PATCH] doc: add known issue about promiscuous mode for I40e VF

[Jeff Guo <jia.guo@intel.com>]

When use i40e linux kernel driver as host driver and DPDK handler the i40e VF,
the promiscuous mode doesn't work in i40e VF. It is not supported by DPDK i40e VF driver right now.
---
 doc/guides/rel_notes/known_issues.rst | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst
index 5ec1987..e907c22 100644
--- a/doc/guides/rel_notes/known_issues.rst
+++ b/doc/guides/rel_notes/known_issues.rst
@@ -620,3 +620,25 @@ The last EAL argument is replaced by the program name in argv[]
 
 **Driver/Module**:
    Environment Abstraction Layer (EAL).
+
+
+I40e VF can't receive the promiscuous unicast/multicast/broadcast packet.
+---------------------------------------------------------
+
+**Description**:
+   Use i40e linux kernel driver PF generate VF, and run testpmd, set Promiscuous mode and
+   All multicast mode to be enabled, then send packet with unknown destination MAC address
+   to VF, but VF can't receive the packet.
+
+**Implication**:
+   So far, the promiscuous mode is not supported by DPDK i40e VF driver if use i40e Linux kernel
+   driver as host driver.
+
+**Resolution/Workaround**:
+   Don't use promiscuous mode in i40e VF if use i40e Linux kernel driver as host driver.
+
+**Affected Environment/Platform**:
+   All.
+
+**Driver/Module**:
+   Poll Mode Driver (PMD).
-- 
1.9.3