ethdev: refine debug build option

[dpdk.git] / doc / guides / nics / ixgbe.rst

diff --git a/doc/guides/nics/ixgbe.rst b/doc/guides/nics/ixgbe.rst
index 696cbd93bac8b7e39a66141f363bbd4fc8edebe8..b82e634382851acac0cccc17349bbc3a13054be2 100644 (file)
--- a/doc/guides/nics/ixgbe.rst
+++ b/doc/guides/nics/ixgbe.rst
@@ -89,7 +89,7 @@ be passed as part of EAL arguments. For example,
 
 .. code-block:: console
 
-   testpmd -a af:10.0,pflink_fullchk=1 -- -i
+   dpdk-testpmd -a af:10.0,pflink_fullchk=1 -- -i
 
 - ``pflink_fullchk`` (default **0**)
 
@@ -257,6 +257,16 @@ RSS isn't supported when QinQ is enabled
 
 Due to FW limitation, IXGBE doesn't support RSS when QinQ is enabled currently.
 
+UDP with zero checksum is reported as error
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Intel 82599 10 Gigabit Ethernet Controller Specification Update (Revision 2.87)
+Errata: 44 Integrity Error Reported for IPv4/UDP Packets With Zero Checksum
+
+To support UDP zero checksum, the zero and bad UDP checksum packet is marked as
+PKT_RX_L4_CKSUM_UNKNOWN, so the application needs to recompute the checksum to
+validate it.
+
 Inline crypto processing support
 --------------------------------