RE: [PATCH v4 5/6] net/iavf: support L2TPv2 for AVF HASH

["Wang, Jie1X" <jie1x.wang@intel.com>]

> -----Original Message-----
> From: Xing, Beilei <beilei.xing@intel.com>
> Sent: Wednesday, February 9, 2022 3:02 PM
> To: Wang, Jie1X <jie1x.wang@intel.com>; dev@dpdk.org
> Cc: Yang, SteveX <stevex.yang@intel.com>; orika@nvidia.com; Singh, Aman
> Deep <aman.deep.singh@intel.com>; Yigit, Ferruh <ferruh.yigit@intel.com>;
> thomas@monjalon.net; andrew.rybchenko@oktetlabs.ru; Wu, Jingjing
> <jingjing.wu@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>;
> olivier.matz@6wind.com
> Subject: RE: [PATCH v4 5/6] net/iavf: support L2TPv2 for AVF HASH
> 
> 
> 
> > -----Original Message-----
> > From: Wang, Jie1X <jie1x.wang@intel.com>
> > Sent: Tuesday, February 8, 2022 4:39 PM
> > To: dev@dpdk.org
> > Cc: Yang, SteveX <stevex.yang@intel.com>; orika@nvidia.com; Singh,
> > Aman Deep <aman.deep.singh@intel.com>; Yigit, Ferruh
> > <ferruh.yigit@intel.com>; thomas@monjalon.net;
> > andrew.rybchenko@oktetlabs.ru; Wu, Jingjing <jingjing.wu@intel.com>;
> > Xing, Beilei <beilei.xing@intel.com>; Zhang, Qi Z
> > <qi.z.zhang@intel.com>; olivier.matz@6wind.com; Wang, Jie1X
> > <jie1x.wang@intel.com>
> > Subject: [PATCH v4 5/6] net/iavf: support L2TPv2 for AVF HASH
> >
> > Add support for PPP over L2TPv2 over UDP protocol and L2TPv2 protocol
> > RSS hash based on outer MAC src address and L2TPv2 session ID.
> >
> > Patterns are listed below:
> > eth/ipv4/udp/l2tpv2
> > eth/ipv4/udp/l2tpv2/ppp
> > eth/ipv6/udp/l2tpv2
> > eth/ipv6/udp/l2tpv2/ppp
> >
> > Signed-off-by: Jie Wang <jie1x.wang@intel.com>
> > ---
> >  doc/guides/rel_notes/release_22_03.rst |  6 ++
> >  drivers/net/iavf/iavf.h                |  2 +
> >  drivers/net/iavf/iavf_generic_flow.c   | 34 +++++++++++
> >  drivers/net/iavf/iavf_generic_flow.h   |  6 ++
> >  drivers/net/iavf/iavf_hash.c           | 83 ++++++++++++++++++++++++--
> >  5 files changed, 127 insertions(+), 4 deletions(-)
> >
> > diff --git a/doc/guides/rel_notes/release_22_03.rst
> > b/doc/guides/rel_notes/release_22_03.rst
> > index 9a507ab9ea..0d1e4a0b61 100644
> > --- a/doc/guides/rel_notes/release_22_03.rst
> > +++ b/doc/guides/rel_notes/release_22_03.rst
> > @@ -64,6 +64,12 @@ New Features
> >
> >    * Added rte_flow support for matching GENEVE packets.
> >
> > +* **Updated Intel iavf driver.**
> > +
> > +  Added L2TPv2(include PPP over L2TPv2) RSS hash distribute packets
> > + based on outer MAC src address and L2TPv2 session ID.
> 
> Add * on the front.
> 

I'll update it.

> > +
> > +
> >  Removed Items
> >  -------------
> >
> > diff --git a/drivers/net/iavf/iavf.h b/drivers/net/iavf/iavf.h index
> > 0bb5698583..a01d18e61b 100644
> > --- a/drivers/net/iavf/iavf.h
> > +++ b/drivers/net/iavf/iavf.h
> > @@ -93,6 +93,8 @@
> >
> >  #define IAVF_VLAN_TAG_PCP_OFFSET 13
> >
> 
> 
> <...>
> 
> > +/* L2TPv2 */
> > +#define IAVF_RSS_TYPE_ETH_L2TPV2	(RTE_ETH_RSS_L2TPV2 | \
> > +					 RTE_ETH_RSS_ETH | \
> > +					 RTE_ETH_RSS_L2_SRC_ONLY)
> 
> Should we limit with L2_SRC_ONLY?
> 

In the requirement, it only requires MAC SA to be used as RSS hash input set.

> > +
> >  /**
> >   * Supported pattern for hash.
> >   * The first member is pattern item type, @@ -547,6 +589,8 @@ static
> > struct iavf_pattern_match_item iavf_hash_pattern_list[] = {
> 
> 
> <...>
> 
> 
> > --
> > 2.25.1