Signed-off-by: Wenzhuo Lu <wenzhuo...@intel.com> --- doc/guides/nics/ixgbe.rst | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/doc/guides/nics/ixgbe.rst b/doc/guides/nics/ixgbe.rst index 3b6851b..1f7d6b3 100644 --- a/doc/guides/nics/ixgbe.rst +++ b/doc/guides/nics/ixgbe.rst @@ -185,8 +185,11 @@ As in the case of l3fwd, set configure port_conf.rxmode.hw_ip_checksum=0 to enab In addition, for improved performance, use -bsz "(32,32),(64,64),(32,32)" in load_balancer to avoid using the default burst size of 144. +Limitations or Known issues +--------------------------- + Malicious Driver Detection not Supported ----------------------------------------- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The Intel x550 series NICs support a feature called MDD (Malicious Driver Detection) which checks the behavior of the VF driver. @@ -207,7 +210,7 @@ it by default.) Statistics ----------- +~~~~~~~~~~ The statistics of ixgbe hardware must be polled regularly in order for it to remain consistent. Running a DPDK application without polling the statistics will @@ -230,6 +233,15 @@ be calculated as follows: In order to ensure valid results, it is recommended to poll every 4 minutes. +MTU setting +~~~~~~~~~~~ + +Although user can set MTU separately on PF and VF ports, ixgbe only supports +one global MTU per physical port. +So when user sets different MTUs on PF and VF ports in one physical port, the +real MTU for all these PF and VF ports is the biggest one. +This behavior is leveraged from kernel driver. + Supported Chipsets and NICs --------------------------- -- 1.9.3
