On Thu, Feb 08, 2018 at 06:55:54AM +0000, Ophir Munk wrote: > From: Moti Haimovsky <mo...@mellanox.com> > > This patch updates mlx4 documentation with flow > configuration limitations imposed by NIC hardware and > PMD implementation > > Signed-off-by: Ophir Munk <ophi...@mellanox.com> > --- > doc/guides/nics/mlx4.rst | 77 > ++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 77 insertions(+) > > diff --git a/doc/guides/nics/mlx4.rst b/doc/guides/nics/mlx4.rst > index 98b9716..b81a875 100644 > --- a/doc/guides/nics/mlx4.rst > +++ b/doc/guides/nics/mlx4.rst > @@ -515,3 +515,80 @@ devices managed by librte_pmd_mlx4. > Port 3 Link Up - speed 40000 Mbps - full-duplex > Done > testpmd> > + > +Limitations > +----------- > + > +Flow rules > +~~~~~~~~~~ > + > +L2 (eth) > +^^^^^^^^ > + > +- Can only use real destination MAC > +- Source MAC is not taken into consideration > + > + For example using testpmd command - src mask must be 00:00:00:00:00:00 > + otherwise the following command will fail > + > +.. code-block:: console > + > + testpmd> flow create 1 ingress pattern eth > + src spec 00:16:3e:2b:e6:47 src mask FF:FF:FF:FF:FF:FF > + / end actions drop / end > + > +- Supports only full MASK > + > + For example the following testpmd command will fail > + > +.. code-block:: console > + > + testpmd> flow create 1 ingress pattern eth > + src spec 00:16:3e:2b:e6:47 > + dst spec 4A:11:6C:FA:60:D0 dst mask FF:00:FF:FF:FF:00 > + / end actions drop / end > + > + > +- When configured to run in promiscuous or all-multicast modes does > + not support additional rules > +- Does not support the explicit exclusion of all multicast traffic > +- Does not support partial VLAN TCI VID matching > + > +L3 (ipv4) > +^^^^^^^^^ > + > +- Supports only 0 or full mask. Prerequisites: Need to have eth dst spec
Plans on updating mlx5 guide with this info too? AFAIK ConnectX-4 and 5 also have this limitation and it can save some hours of debugging. Marcelo
