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From: Shy Shyman <shys@nvidia.com>
To: "dev@dpdk.org" <dev@dpdk.org>
CC: NBU-Contact-Thomas Monjalon <thomas@monjalon.net>, "Gal Cohen (ProdM)"
<galco@nvidia.com>, Shy Shyman <shys@nvidia.com>
Thread-Topic: DPDK 21.08 NVIDIA Mellanox Roadmap
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Date: Thu, 10 Jun 2021 14:32:46 +0000
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Subject: [dpdk-dev] DPDK 21.08 NVIDIA Mellanox Roadmap
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Below is NVIDIA Mellanox's roadmap for DPDK21.08, on which we are currently=
working:
rte_flow new APIs:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[1] Extend rte_ipv4_hdr with ihl field separated from version field(while p=
ersevering 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 i=
s maintained.
mlx5 PMD updates:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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 rul=
es in the HW. For that we are adding support for non-default rejection of d=
uplicated rule. When application wants to get an error message for duplicat=
ed 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 r=
equires 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 t=
o allow multiple meters to be cascaded to construct meter hierarchy so pack=
et 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 met=
er 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 color=
s)
[4] Extend flow dump output to include further information about the flows
Motivation: current implementation of flow dump is very limit=
ed in its content. We are adding further information as part of the flow du=
mp - 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 w=
e are improving several aspects of the MLX5 PMD. Most noticeable are improv=
ement 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 V=
Fs 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 devic=
e. 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 steer=
ing rules on vxlan alert bit, we are extending the vxlan matching to suppor=
t the last 8 bits of the header.
New PMDs:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[8] Implement look aside AES-XTS encryption/decryption PMD over Bluefield-=
2 smartNic and connect6-DX to support existing rte_cryptodev and rte_crypt=
o APIs
testpmd updates:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
testpmd updated to support the changes listed above