[dpdk-dev] [PATCH] doc: virtio MAC/VLAN filtering is best effort
tiwei.bie at intel.com
Wed Sep 18 07:00:50 CEST 2019
Explicitly document that the MAC/VLAN filtering in virtio
is best effort to help users understand why unwanted packets
could still arrive.
Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
doc/guides/nics/virtio.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst
index bd0116176..fb378a4b9 100644
@@ -56,7 +56,7 @@ In this release, the virtio PMD driver provides the basic functionality of packe
* Features of mac/vlan filter are supported, negotiation with vhost/backend are needed to support them.
When backend can't support vlan filter, virtio app on guest should not enable vlan filter in order
to make sure the virtio port is configured correctly. E.g. do not specify '--enable-hw-vlan' in testpmd
- command line.
+ command line. Note that, mac/vlan filter is best effort: unwanted packets could still arrive.
* "RTE_PKTMBUF_HEADROOM" should be defined
no less than "sizeof(struct virtio_net_hdr_mrg_rxbuf)", which is 12 bytes when mergeable or
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