Below is NVIDIA Mellanox's roadmap for DPDK21.08, on which we are currently
working:
rte_flow new APIs:
===============
[1] Extend rte_ipv4_hdr with ihl field separated from version field(while
persevering the original API)
Motivation: to allow efficient implementation of match on ihl
field in ipv4. Please note that the combination field of version and Ihl is
maintained.
mlx5 PMD updates:
==================
mlx5 PMD will support the rte_flow update changes listed above and below
[2]Add non-default mode of rejecting duplicating flow rules
Motivation: some at-scale applications may not keep a copy of all
the inserted rules. At the same time they wish to avoid duplicated rules in the
HW. For that we are adding support for non-default rejection of duplicated
rule. When application wants to get an error message for duplicated rule a
specific new devargs would needed to be used.
[3] extend meter implantation
Motivation:
1. currently each flow can execute one meter action. Some applications
requires a connection(as manifested as rte rule) to be metered according to
more than one meter. We are enhancing the meter implementation in our PMD to
allow multiple meters to be cascaded to construct meter hierarchy so packet can
be accounted for by several meters w/o using multiple flows and jump actions
between them.
2. At the time we are extending the implementation to allow a single meter
action to be shared by rte rules inserted with different ports.
3. We are enhancing the steering mechanism for meter to allow actions to be
trigged by yellow color(the same actions allowed by green and red colors)
[4] Extend flow dump output to include further information about the flows
Motivation: current implementation of flow dump is very limited
in its content. We are adding further information as part of the flow dump -
counter and their metric(hits, bytes, id), modify_header(action type),
encap/decap(index number)
[5] improved rule insertion performance
Motivation: in order to support at scale insertion of rules we
are improving several aspects of the MLX5 PMD. Most noticeable are improvement
in the memory allocation, set tag and mark actions.
[6] Introduce Scalable Function(SF) support
Motivation: we are introducing a new function called SF. As VFs
resources are limited and dependent on the PCI bus we are adding SF with the
same functionality but with fewer limitations. SFs share PCI resources with
other SFs and/or with it parent PCI function but it's not a PCI device. In this
released we are introducing SF support for net, regex, compress and vdpa
classes. To support SFs we are also introducing auxiliary bus as the foundation
for SFs.
[7] Extend vxlan header matching to include last 8 bits
Motivation: in order to provide the ability to match in steering
rules on vxlan alert bit, we are extending the vxlan matching to support the
last 8 bits of the header.
New PMDs:
==============
[8] Implement look aside AES-XTS encryption/decryption PMD over Bluefield-2
smartNic and connect6-DX to support existing rte_cryptodev and rte_crypto APIs
testpmd updates:
================
testpmd updated to support the changes listed above
