Commit 9f2c944d authored by Sujatha Banoth's avatar Sujatha Banoth

2020.1 DPDK Release notes updated

2020.1 DPDK Release notes updated
parent 7cb3e380
RELEASE: 2020.1 RELEASE: 2020.1
=============== ===============
This release is based on DPDK v19.11 in IOVA=PA mode and contains QDMA poll mode driver and This release is based on DPDK v19.11 in IOVA=PA mode and contains QDMA poll mode driver and
QDMA test application. This release is validated on QDMA4.0 2020.1 based example design QDMA test application. This release is validated on QDMA4.0 2020.1 based example design
and QDMA3.1 2019.2 patch based example design. and QDMA3.1 2019.2 patch based example design.
This release includes a patch file for dpdk-pktgen v19.12.0 that extends This release includes a patch file for dpdk-pktgen v19.12.0 that extends
dpdk-pktgen application to handle packets with packet sizes more than 1518 bytes dpdk-pktgen application to handle packets with packet sizes more than 1518 bytes
and it disables the packet size classification logic in dpdk-pktgen to remove and it disables the packet size classification logic in dpdk-pktgen to remove
application overhead in performance measurement. application overhead in performance measurement.
This patch is used for performance testing with dpdk-pktgen application. This patch is used for performance testing with dpdk-pktgen application.
The driver is validated against dpdk-pktgen and testpmd applications for API compliance. The driver is validated against dpdk-pktgen and testpmd applications for API compliance.
SUPPORTED FEATURES: SUPPORTED FEATURES:
=================== ===================
2018.2 Features 2018.2 Features
--------------- ---------------
- Support for both the AXI4 Memory Mapped(MM) and AXI4 Streaming(ST) Interfaces - Support for both the AXI4 Memory Mapped(MM) and AXI4 Streaming(ST) Interfaces
- 2048 Queue Sets - 2048 Queue Sets
- 2048 H2C Descriptor Rings - 2048 H2C Descriptor Rings
- 2048 C2H Descriptor Rings - 2048 C2H Descriptor Rings
- 2048 C2H Completion Rings - 2048 C2H Completion Rings
- Supports Polling Mode - Supports Polling Mode
- Supports SR-IOV with 4 Physical Functions(PF) and 252 Virtual Functions(VF) - Supports SR-IOV with 4 Physical Functions(PF) and 252 Virtual Functions(VF)
- Allows Only Privileged/Physical functions to program the contexts and registers - Allows Only Privileged/Physical functions to program the contexts and registers
- Mailbox Support - Mailbox Support
- Supports Descriptor Prefetch - Supports Descriptor Prefetch
- ST H2C to C2H and C2H to H2C loopback support - ST H2C to C2H and C2H to H2C loopback support
- Zero-byte transfer support - Zero-byte transfer support
2018.3 Features 2018.3 Features
--------------- ---------------
- Descriptor (8, 16, 32, 64 bytes) bypass support - Descriptor (8, 16, 32, 64 bytes) bypass support
- Support for Completion queue descriptors of 64 bytes size - Support for Completion queue descriptors of 64 bytes size
- Support flexible BAR mapping for QDMA configuration register space - Support flexible BAR mapping for QDMA configuration register space
- Support disabling overflow check in completion ring - Support disabling overflow check in completion ring
- Indirect programming of FMAP registers - Indirect programming of FMAP registers
- Version for SW and HW - Version for SW and HW
2019.1 Features 2019.1 Features
--------------- ---------------
- Support DPDK v18.11 LTS - Support DPDK v18.11 LTS
- Interrupt support for Mailbox events - Interrupt support for Mailbox events
- Support Completions in Memory mapped mode - Support Completions in Memory mapped mode
- Interoperability between Linux driver (as PF/VF) and DPDK driver (as PF/VF) - Interoperability between Linux driver (as PF/VF) and DPDK driver (as PF/VF)
- Error monitoring and error logging - Error monitoring and error logging
- Driver restructuring to partition QDMA access code such that it can be used across different drivers - Driver restructuring to partition QDMA access code such that it can be used across different drivers
- Device configuration through additional driver APIs - Device configuration through additional driver APIs
2019.2 Features 2019.2 Features
--------------- ---------------
- Support reset of a VF device (via rte_eth_dev_reset() API) - Support reset of a VF device (via rte_eth_dev_reset() API)
- Support PF device removal when its VF device is active - Support PF device removal when its VF device is active
- Split user logic related data path handling code to qdma_user.c and qdma_user.h - Split user logic related data path handling code to qdma_user.c and qdma_user.h
- Bug Fixes - Bug Fixes
- Correct the PF and VF function ID used in the driver in accordance with HW - Correct the PF and VF function ID used in the driver in accordance with HW
- Fix dma_from_device command in qdma_testapp application that requests more data from user logic than specified - Fix dma_from_device command in qdma_testapp application that requests more data from user logic than specified
- Fix memory offset calculation in dma_from_device and dma_to_device command in qdma_testapp application for MM mode - Fix memory offset calculation in dma_from_device and dma_to_device command in qdma_testapp application for MM mode
2020.1 Updates 2020.1 Updates
--------------- ---------------
- Support DPDK v19.11 LTS - Support DPDK v19.11 LTS
- Support QDMA4.0 context and register changes - Support QDMA4.0 context and register changes
- Common driver to support QDMA3.1 and QDMA4.0 designs - Common driver to support QDMA3.1 and QDMA4.0 designs
- Updated and validated the example design with marker changes for QDMA4.0 and without marker changes for QDMA3.1 - Updated and validated the example design with marker changes for QDMA4.0 and without marker changes for QDMA3.1
- Added support for more than 256 functions - Added support for more than 256 functions
- Support multiple bus numbers on single card - Support multiple bus numbers on single card
- CPU resource optimization in Tx and Rx data path - CPU resource optimization in Tx and Rx data path
KNOWN ISSUES: KNOWN ISSUES:
============= =============
- On QDMA3.1 2019.2 design, sometimes completions are not received when C2H PIDX updates are held for 64 descriptors - On QDMA3.1 2019.2 design, sometimes completions are not received when C2H PIDX updates are held for 64 descriptors
- On QDMA4.0 2020.1 design, HW errors are observed in dmesg console while validating the MM only design. - On QDMA4.0 2020.1 design, HW errors are observed in dmesg console while validating the MM only design.
- Function Level Reset(FLR) of PF device when VFs are attached to this PF results in mailbox communication failure - Function Level Reset(FLR) of PF device when VFs are attached to this PF results in mailbox communication failure
DRIVER LIMITATIONS: DRIVER LIMITATIONS:
=================== ===================
- Big endian systems are not supported - Big endian systems are not supported
- For optimal QDMA streaming performance, packet buffers of the descriptor ring should be aligned to at least 256 bytes. - For optimal QDMA streaming performance, packet buffers of the descriptor ring should be aligned to at least 256 bytes.
- QDMA DPDK 2020.1 software is verified with IOVA=PA mode only - QDMA DPDK 2020.1 software is verified with IOVA=PA mode only
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