[dpdk-dev] DPDK 20.05 Mellanox Roadmap

[Thomas Monjalon]

Summarized for the web:
	http://git.dpdk.org/tools/dpdk-web/commit/?id=7edb98830


16/03/2020 09:21, Gal Cohen:
> Below is Mellanox's roadmap for DPDK20.05:
> 
> 
> 
> Reduce memory consumption in mlx5 PMD -
> 
> [1] Reduce flow memory (entry size) footprint/consumption.
> 
> [2] Remove flow rules caching.
> 
> Change the mlx5 PMD implementation of rte_eth_dev_stop()/rte_eth_dev_start() to stop caching flow rules (freeing resources for the created flows).
> 
> Benefits: Scale and performance improvement.
> 
> 
> 
> HW offload for TTL matching
> 
> [3] Offload TTL matching from routing applications to the NIC.
> 
> Usage through rte_flow API ; Implementation in mlx5 PMD.
> 
> Benefits: Simplifying the routing application complexity as well as reducing host CPU usage through offloading the TTL logic to the NIC.
> 
> 
> 
> Flow aging - Introducing new AGE action in the rte_flow API
> 
> [4]  Add a new action to allow the application (client) to define an age threshold (seconds) on which it expects to get notification from the mlx5 PMD.
> 
> The PMD will implement the flow aging monitoring aging through the use of the rte_flow API, instead of the application.
> 
> Additional background can be found in here: https://patchwork.dpdk.org/patch/53701/.
> 
> 
> 
> Add support for additional features in vDPA
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>             [5] Support Large-Send-Offload (LSO).
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>             [6] Improve debuggability through vDPA device counters and error reporting.
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>             [7] Rate limiting - allow application definition of the maximal number of packets; providing means to apply different policies/QoS for different applications / tenants.
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>             [8] ConnectX-6 Dx - introduce HW Doorbell instead of current SW Doorbell.
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> 
> 
> Performance improvement for jumbo-frame size
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>             [9] Add support for large MTU size while using MPRQ to provide full line rate performance with any packet size.
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> 
> 
> Hairpin with jumbo-frames
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>  [10] Add support for jumbo-frame packets In addition to the existing hairpin offloading functionality.
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> 
> 
> Enable GTP encap/decap
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> [11] Add encap/decap to GTP using the rte_flow raw_encap/raw_decap APIs.
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> 
> 
> Adding test application
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>            [12] Introduce a new (standalone) test application for measuring flow insertion rate and traffic performance.
> 
>            The application defines flows with rte_flow API ; Measure the flow insertion rate and traffic performance.
>