Hi Alexander, > -----Original Message----- > From: Alexander Kozyrev <akozy...@nvidia.com> > Sent: Wednesday, January 13, 2021 7:08 PM > Subject: [PATCH v4 1/2] ethdev: introduce generic copy rte flow action > > Implement a generic copy flow API to allow copying of an arbitrary > header field (as well as mark, metadata or tag) to another field. > > This generic copy mechanism removes the necessity to implement a > separate RTE Flow action every time we need to modify a new packet > field in the future. A user-provided value can be used from a > specified tag/metadata/mark or directly copied from another packet field. > > The field ID is used to specify the desired source/destination packet > field in order to simplify the API for various encapsulation models. > Specifying the packet field ID with the needed encapsulation level > is able to quickly get a packet field for any inner packet header. > > Alternatively, the special ID (ITEM_START) can be used to point to the > very beginning of a packet. This ID in conjunction with the offset > parameter provides great flexibility to copy/modify any part of a packet > as needed. > > The number of bits to copy as well as the offset to start from can > be specified to allow a partial copy or dividing a big packet field > into multiple small fields (let's say copying 128 bits of IPv6 to 4 tags). > > RFC: > https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatches.d > pdk.org%2Fpatch%2F85384%2F&data=04%7C01%7Corika%40nvidia.com% > 7C17fcc82431974e7e56f108d8b7e5c877%7C43083d15727340c1b7db39efd9ccc > 17a%7C0%7C0%7C637461544825998974%7CUnknown%7CTWFpbGZsb3d8eyJW > IjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C10 > 00&sdata=kTd45BEYhWsYtRuB9r5Y%2BTwa88wnkKgwUhWFFIutcvc%3D& > amp;reserved=0 > > Signed-off-by: Alexander Kozyrev <akozy...@nvidia.com> > --- > doc/guides/prog_guide/rte_flow.rst | 57 +++++++++++++++++++++++++ > doc/guides/rel_notes/release_21_02.rst | 5 +++ > lib/librte_ethdev/rte_flow.c | 1 + > lib/librte_ethdev/rte_flow.h | 59 ++++++++++++++++++++++++++ > 4 files changed, 122 insertions(+) >
Acked-by: Ori Kam <or...@nvidia.com> Thanks, Ori
