Path: blob/main/website/content/en/status/report-2023-07-2023-09/dpaa2.adoc
18096 views
=== NXP DPAA2 support Links: + link:https://cgit.freebsd.org/src/tree/sys/dev/dpaa2[DPAA2 in the FreeBSD source tree] URL: link:https://cgit.freebsd.org/src/tree/sys/dev/dpaa2[] + link:https://github.com/mcusim/freebsd-src[DPAA2 on Github] URL: link:https://github.com/mcusim/freebsd-src[] Contact: Dmitry Salychev <[email protected]> + Contact: Bjoern A. Zeeb <[email protected]> ==== What is DPAA2? DPAA2 is a hardware-level networking architecture found in some NXP SoCs which contains hardware blocks including Management Complex (MC, a command interface to manipulate DPAA2 objects), Wire Rate I/O processor (WRIOP, packets distribution, queuing, drop decisions), Queues and Buffers Manager (QBMan, Rx/Tx queues control, Rx buffer pools) and others. The Management Complex runs NXP-supplied firmware which provides DPAA2 objects as an abstraction layer over those blocks to simplify access to the underlying hardware. ==== Changes from the previous report * Isolation between DPAA2 channels link:https://cgit.freebsd.org/src/commit/?id=58983e4b0253ad38a3e1ef2166fedd3133fdb552[improved]. * Panic under heavy network load link:https://github.com/mcusim/freebsd-src/issues/19[fixed]. * FDT/ACPI MDIO support. * NFS root mount link:https://github.com/mcusim/freebsd-src/issues/7[do not hang] on netboot over DPAA2 anymore. * Drivers link:https://github.com/mcusim/freebsd-src/issues/2[started] to communicate with MC via their own command portals (DPMCP). * link:https://github.com/mcusim/freebsd-src/issues?q=is%3Aissue+is%3Aclosed[List of all closed issues]. ==== Work in Progress Work on link:https://cgit.freebsd.org/src/commit/?id=2a9021898c4ee2154787da862c238cfeccd655df[dev/sff] started to support SFF/SFP modules in order to test DPAA2 drivers on links above 1 Gbit/s. ==== Plan * Heavy network load tests (2.5 Gbit/s, 10 Gbit/s) and bottlenecks mitigation. * Cached memory-backed software portals. * Driver resources de-allocation to unload dpaa2.ko properly. * Further parts (DPSW, DCE, etc.) supported by the hardware. Sponsor: Traverse Technologies (providing Ten64 HW for testing)